Built 2026-10-18 (18 October 2026)

Amherst Weather Records (USC00190120)

Record envelope, standing records and threshold days for Amherst (USC00190120), Massachusetts, United States, with 134 years of record.

Key Facts for Amherst

  • Amherst (USC00190120) is a weather station in Massachusetts, United States at 42.39 latitude and -72.54 longitude, 44 m (145 ft) above sea level.
  • The station reports from 1893 to 2026, 134 years of record.
  • 1,464 records set at Amherst still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Amherst tied a daily record high minimum temperature of 22.2 C (72.0 F) on 3 August 2026.

About the Station

  • Location: Massachusetts, United States, 42.39 latitude, -72.54 longitude.
  • Elevation: 44 m (145 ft).
  • Period of record: 1893 to 2026, 134 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

4 days at or beyond a record
Daily record high and record low at Amherst, with 2026 drawn through them The band shows the record high and record low for each calendar day at Amherst. The lines show the 2026 daily maximum and minimum. 4 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Amherst. The lines show the 2026 daily maximum and minimum. 4 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Amherst, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan21.1 C (70.0 F)-34.4 C (-29.9 F)9.4 C (48.9 F)-25.6 C (-14.1 F)
Feb25.6 C (78.1 F)-32.8 C (-27.0 F)6.1 C (43.0 F)-26.1 C (-15.0 F)
Mar29.4 C (84.9 F)-27.2 C (-17.0 F)23.9 C (75.0 F)-14.4 C (6.1 F)
Apr33.9 C (93.0 F)-13.3 C (8.1 F)30.6 C (87.1 F)-4.4 C (24.1 F)
May36.7 C (98.1 F)-4.4 C (24.1 F)35.0 C (95.0 F)0.6 C (33.1 F)
Jun38.3 C (100.9 F)-1.7 C (28.9 F)33.9 C (93.0 F)3.3 C (37.9 F)
Jul40.0 C (104.0 F)3.9 C (39.0 F)36.1 C (97.0 F)8.9 C (48.0 F)
Aug37.8 C (100.0 F)0.0 C (32.0 F)33.3 C (91.9 F)10.0 C (50.0 F)
Sep37.2 C (99.0 F)-3.9 C (25.0 F)28.9 C (84.0 F)5.0 C (41.0 F)
Oct32.2 C (90.0 F)-11.1 C (12.0 F)29.4 C (84.9 F)-1.1 C (30.0 F)
Nov27.8 C (82.0 F)-20.0 C (-4.0 F)n/an/a
Dec22.2 C (72.0 F)-30.0 C (-22.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Amherst by the year they were set 1,464 records at Amherst still stand. 1911 holds the most, with 25. 01020301893: 51894: 131895: 91897: 51898: 51899: 161900: 121901: 71902: 121903: 131904: 151905: 61906: 161907: 191908: 111909: 101910: 101911: 251912: 121913: 111914: 201915: 121916: 151917: 201918: 241919: 121920: 61921: 121922: 51923: 201924: 81925: 161926: 131927: 71928: 81929: 111930: 121931: 111932: 111933: 191934: 191935: 91936: 121937: 121938: 121939: 71940: 101941: 51942: 71943: 141944: 91945: 171946: 121947: 131948: 141949: 181950: 111951: 91952: 61953: 131954: 131955: 101956: 121957: 151958: 91959: 101960: 71961: 211962: 81963: 151964: 81965: 151966: 81967: 121968: 101969: 61970: 61971: 161972: 71973: 81974: 171975: 121976: 71977: 161978: 81979: 171980: 91981: 161982: 141983: 71984: 181985: 91986: 51987: 81988: 91989: 151990: 201991: 201992: 41993: 111994: 41995: 101996: 101997: 31998: 51999: 52000: 52001: 102002: 162003: 102004: 42005: 92006: 52007: 132008: 62009: 92010: 72011: 72012: 72013: 42014: 42015: 152016: 122017: 192018: 172019: 52020: 132021: 112022: 102023: 92024: 62025: 62026: 71893190819221936195019641978199220062020
1,464 records at Amherst still stand. 1911 holds the most, with 25.
Standing records at Amherst by the year they were set
Year setStanding records
18935
189413
18959
18975
18985
189916
190012
19017
190212
190313
190415
19056
190616
190719
190811
190910
191010
191125
191212
191311
191420
191512
191615
191720
191824
191912
19206
192112
19225
192320
19248
192516
192613
19277
19288
192911
193012
193111
193211
193319
193419
19359
193612
193712
193812
19397
194010
19415
19427
194314
19449
194517
194612
194713
194814
194918
195011
19519
19526
195313
195413
195510
195612
195715
19589
195910
19607
196121
19628
196315
19648
196515
19668
196712
196810
19696
19706
197116
19727
19738
197417
197512
19767
197716
19788
197917
19809
198116
198214
19837
198418
19859
19865
19878
19889
198915
199020
199120
19924
199311
19944
199510
199610
19973
19985
19995
20005
200110
200216
200310
20044
20059
20065
200713
20086
20099
20107
20117
20127
20134
20144
201515
201612
201719
201817
20195
202013
202111
202210
20239
20246
20256
20267

All-Time Record Progression

10 new records
When Amherst set new all-time records 10 all-time records were set at Amherst between 16 September 1933 and 9 October 2005. Each dot is a new record. Record daily precipitationRecord low maximum temperatureRecord snow depthRecord low minimum temperatureRecord high minimum temperature16 September 1933: Record daily precipitation 154.4 mm (6.1 in)30 December 1933: Record low maximum temperature -19.4 C (-2.9 F)20 January 1961: Record snow depth 73.7 cm (29.0 in)21 January 1961: Record low minimum temperature -32.8 C (-27.0 F)22 January 1961: Record low minimum temperature -34.4 C (-29.9 F)27 January 1961: Record snow depth 76.2 cm (30.0 in)4 February 1961: Record snow depth 78.7 cm (31.0 in)5 February 1961: Record snow depth 91.4 cm (36.0 in)5 July 1990: Record high minimum temperature 26.7 C (80.1 F)9 October 2005: Record daily precipitation 192.0 mm (7.6 in)1940195019601970198019902000
10 all-time records were set at Amherst between 16 September 1933 and 9 October 2005. Each dot is a new record.
When Amherst set new all-time records
DateKindDetail
1933-09-16Record daily precipitationRecord daily precipitation 154.4 mm (6.1 in)
1933-12-30Record low maximum temperatureRecord low maximum temperature -19.4 C (-2.9 F)
1961-01-20Record snow depthRecord snow depth 73.7 cm (29.0 in)
1961-01-21Record low minimum temperatureRecord low minimum temperature -32.8 C (-27.0 F)
1961-01-22Record low minimum temperatureRecord low minimum temperature -34.4 C (-29.9 F)
1961-01-27Record snow depthRecord snow depth 76.2 cm (30.0 in)
1961-02-04Record snow depthRecord snow depth 78.7 cm (31.0 in)
1961-02-05Record snow depthRecord snow depth 91.4 cm (36.0 in)
1990-07-05Record high minimum temperatureRecord high minimum temperature 26.7 C (80.1 F)
2005-10-09Record daily precipitationRecord daily precipitation 192.0 mm (7.6 in)

Wettest Day of Each Month

Oct: 192.0 mm (7.6 in)
Record daily precipitation for each month at Amherst The wettest day on record for each calendar month at Amherst. The most was 192.0 mm (7.6 in) on 9 October 2005. 050100150200 Jan: 66.0 mm (2.6 in), 26 January 1986 Jan Feb: 80.3 mm (3.2 in), 13 February 1900 Feb Mar: 82.0 mm (3.2 in), 7 March 2011 Mar Apr: 71.9 mm (2.8 in), 25 April 1945 Apr May: 71.1 mm (2.8 in), 24 May 1989 May Jun: 94.5 mm (3.7 in), 10 June 1961 Jun Jul: 125.5 mm (4.9 in), 13 July 1897 Jul Aug: 105.2 mm (4.1 in), 18 August 1955 Aug Sep: 154.4 mm (6.1 in), 16 September 1933 Sep Oct: 192.0 mm (7.6 in), 9 October 2005 Oct Nov: 87.1 mm (3.4 in), 3 November 1927 Nov Dec: 103.9 mm (4.1 in), 15 December 1897 Dec
The wettest day on record for each calendar month at Amherst. The most was 192.0 mm (7.6 in) on 9 October 2005.
Record daily precipitation for each month at Amherst
MonthRecord daily precipitation (mm)Date
Jan66.0 mm (2.6 in)26 January 1986
Feb80.3 mm (3.2 in)13 February 1900
Mar82.0 mm (3.2 in)7 March 2011
Apr71.9 mm (2.8 in)25 April 1945
May71.1 mm (2.8 in)24 May 1989
Jun94.5 mm (3.7 in)10 June 1961
Jul125.5 mm (4.9 in)13 July 1897
Aug105.2 mm (4.1 in)18 August 1955
Sep154.4 mm (6.1 in)16 September 1933
Oct192.0 mm (7.6 in)9 October 2005
Nov87.1 mm (3.4 in)3 November 1927
Dec103.9 mm (4.1 in)15 December 1897

Period of Record Coverage

1893 to 2026
Days with data per year at Amherst 133 years of record at Amherst, 1893 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1901, 1908, 2026. 1893: 360 of 365 days1894: 363 of 365 days1895: 362 of 365 days1897: 334 of 365 days1898: 363 of 365 days1899: 363 of 365 days1900: 356 of 365 days1901: 320 of 365 days1902: 358 of 365 days1903: 358 of 365 days1904: 354 of 366 days1905: 364 of 365 days1906: 364 of 365 days1907: 365 of 365 days1908: 285 of 366 days1909: 357 of 365 days1910: 364 of 365 days1911: 363 of 365 days1912: 366 of 366 days1913: 362 of 365 days1914: 365 of 365 days1915: 363 of 365 days1916: 364 of 366 days1917: 355 of 365 days1918: 357 of 365 days1919: 365 of 365 days1920: 361 of 366 days1921: 365 of 365 days1922: 365 of 365 days1923: 363 of 365 days1924: 366 of 366 days1925: 357 of 365 days1926: 365 of 365 days1927: 364 of 365 days1928: 364 of 366 days1929: 365 of 365 days1930: 364 of 365 days1931: 365 of 365 days1932: 366 of 366 days1933: 361 of 365 days1934: 357 of 365 days1935: 359 of 365 days1936: 365 of 366 days1937: 365 of 365 days1938: 365 of 365 days1939: 364 of 365 days1940: 366 of 366 days1941: 365 of 365 days1942: 365 of 365 days1943: 365 of 365 days1944: 366 of 366 days1945: 365 of 365 days1946: 365 of 365 days1947: 365 of 365 days1948: 357 of 366 days1949: 362 of 365 days1950: 357 of 365 days1951: 362 of 365 days1952: 364 of 366 days1953: 360 of 365 days1954: 356 of 365 days1955: 362 of 365 days1956: 364 of 366 days1957: 360 of 365 days1958: 360 of 365 days1959: 361 of 365 days1960: 365 of 366 days1961: 364 of 365 days1962: 364 of 365 days1963: 335 of 365 days1964: 347 of 366 days1965: 363 of 365 days1966: 360 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 365 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 332 of 365 days1980: 347 of 366 days1981: 359 of 365 days1982: 355 of 365 days1983: 359 of 365 days1984: 364 of 366 days1985: 362 of 365 days1986: 359 of 365 days1987: 359 of 365 days1988: 364 of 366 days1989: 361 of 365 days1990: 364 of 365 days1991: 358 of 365 days1992: 359 of 366 days1993: 362 of 365 days1994: 333 of 365 days1995: 362 of 365 days1996: 361 of 366 days1997: 365 of 365 days1998: 361 of 365 days1999: 363 of 365 days2000: 364 of 366 days2001: 363 of 365 days2002: 364 of 365 days2003: 365 of 365 days2004: 365 of 366 days2005: 363 of 365 days2006: 365 of 365 days2007: 363 of 365 days2008: 344 of 366 days2009: 361 of 365 days2010: 364 of 365 days2011: 363 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 364 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 364 of 365 days2019: 365 of 365 days2020: 366 of 366 days2021: 365 of 365 days2022: 365 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 363 of 365 days2026: 282 of 365 days1900192019401960198020002020
133 years of record at Amherst, 1893 to 2026. 3 years have data for under 90 percent of days and are left out of rankings: 1901, 1908, 2026.
Days with data per year at Amherst
YearDays with dataShare of yearComplete
189336099%Yes
189436399%Yes
189536299%Yes
189733492%Yes
189836399%Yes
189936399%Yes
190035698%Yes
190132088%No
190235898%Yes
190335898%Yes
190435497%Yes
1905364100%Yes
1906364100%Yes
1907365100%Yes
190828578%No
190935798%Yes
1910364100%Yes
191136399%Yes
1912366100%Yes
191336299%Yes
1914365100%Yes
191536399%Yes
191636499%Yes
191735597%Yes
191835798%Yes
1919365100%Yes
192036199%Yes
1921365100%Yes
1922365100%Yes
192336399%Yes
1924366100%Yes
192535798%Yes
1926365100%Yes
1927364100%Yes
192836499%Yes
1929365100%Yes
1930364100%Yes
1931365100%Yes
1932366100%Yes
193336199%Yes
193435798%Yes
193535998%Yes
1936365100%Yes
1937365100%Yes
1938365100%Yes
1939364100%Yes
1940366100%Yes
1941365100%Yes
1942365100%Yes
1943365100%Yes
1944366100%Yes
1945365100%Yes
1946365100%Yes
1947365100%Yes
194835798%Yes
194936299%Yes
195035798%Yes
195136299%Yes
195236499%Yes
195336099%Yes
195435698%Yes
195536299%Yes
195636499%Yes
195736099%Yes
195836099%Yes
195936199%Yes
1960365100%Yes
1961364100%Yes
1962364100%Yes
196333592%Yes
196434795%Yes
196536399%Yes
196636099%Yes
1967365100%Yes
1968366100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972365100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
197933291%Yes
198034795%Yes
198135998%Yes
198235597%Yes
198335998%Yes
198436499%Yes
198536299%Yes
198635998%Yes
198735998%Yes
198836499%Yes
198936199%Yes
1990364100%Yes
199135898%Yes
199235998%Yes
199336299%Yes
199433391%Yes
199536299%Yes
199636199%Yes
1997365100%Yes
199836199%Yes
199936399%Yes
200036499%Yes
200136399%Yes
2002364100%Yes
2003365100%Yes
2004365100%Yes
200536399%Yes
2006365100%Yes
200736399%Yes
200834494%Yes
200936199%Yes
2010364100%Yes
201136399%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015364100%Yes
2016366100%Yes
2017365100%Yes
2018364100%Yes
2019365100%Yes
2020366100%Yes
2021365100%Yes
2022365100%Yes
2023365100%Yes
2024366100%Yes
202536399%Yes
202628277%No

Latest Records

20
Latest records at Amherst
DateStationRecordValueBeat old record byOld record stoodSignificance
3 August 2026Amherst, USdaily high min (Tie)22.2 C (72.0 F)tie52 years6 of 100 (Routine)
8 July 2026Amherst, USdaily low max19.4 C (66.9 F)0.6 C (1.1 F)111 years41 of 100 (Notable)
12 June 2026Amherst, USdaily high max (Tie)33.9 C (93.0 F)tie76 years8 of 100 (Routine)
20 May 2026Amherst, USdaily high max35.0 C (95.0 F)1.7 C (3.1 F)123 years43 of 100 (Notable)
20 May 2026Amherst, USdaily high min18.9 C (66.0 F)1.1 C (2.0 F)127 years42 of 100 (Notable)
17 April 2026Amherst, USdaily high min15.6 C (60.1 F)1.7 C (3.1 F)3 years13 of 100 (Routine)
16 April 2026Amherst, USdaily high max28.9 C (84.0 F)2.2 C (4.0 F)32 years22 of 100 (Routine)
11 March 2026Amherst, USdaily high max23.9 C (75.0 F)2.2 C (4.0 F)48 years27 of 100 (Routine)
24 February 2026Amherst, USdaily snowfall19.3 cm (7.6 in)4.1 cm (1.6 in)64 years34 of 100 (Routine)
23 February 2026Amherst, USdaily snowfall22.6 cm (8.9 in)2.3 cm (0.9 in)59 years30 of 100 (Routine)
8 February 2026Amherst, USdaily snowfall (Tie)17.8 cm (7.0 in)tie80 years8 of 100 (Routine)
26 January 2026Amherst, USdaily snowfall27.4 cm (10.8 in)12.2 cm (4.8 in)38 years42 of 100 (Notable)
26 January 2026Amherst, USdaily low max-10.6 C (12.9 F)0.6 C (1.1 F)114 years41 of 100 (Notable)
31 October 2025Amherst, USdaily rain53.3 mm (2.1 in)8.8 mm (0.35 in)86 years41 of 100 (Notable)
21 August 2025Amherst, USdaily low max16.1 C (61.0 F)1.7 C (3.1 F)68 years34 of 100 (Routine)
18 July 2025Amherst, USdaily high min23.3 C (73.9 F)0.5 C (0.9 F)43 years23 of 100 (Routine)
15 July 2025Amherst, USdaily rain44.5 mm (1.8 in)0.8 mm (0.03 in)80 years34 of 100 (Routine)
26 June 2025Amherst, USdaily high min22.8 C (73.0 F)0.6 C (1.1 F)76 years33 of 100 (Routine)
25 June 2025Amherst, USdaily high max36.7 C (98.1 F)2.3 C (4.1 F)82 years39 of 100 (Notable)
24 June 2025Amherst, USdaily high max36.1 C (97.0 F)1.7 C (3.1 F)106 years43 of 100 (Notable)

Climate Trend

124 complete years, 1893 to 2025
Annual mean temperature at Amherst as warming stripes, 1893 to 2025 One stripe for each of 124 complete years at Amherst, 1893 to 2025. Blue stripes are years cooler than the station's own mean of 9.0 C (48.1 F); red stripes are warmer. The coolest year was 1917, at 7.0 C (44.6 F), and the warmest was 1990, at 11.1 C (51.9 F). The strongest colour marks a difference of 2.1 C (3.8 F). 1893: 7.5 C, -1.5 C from the station mean1894: 8.8 C, -0.2 C from the station mean1895: 8.1 C, -0.9 C from the station mean1898: 9.1 C, +0.1 C from the station mean1899: 8.4 C, -0.6 C from the station mean1900: 8.9 C, -0.1 C from the station mean1902: 8.6 C, -0.3 C from the station mean1903: 8.3 C, -0.7 C from the station mean1905: 7.8 C, -1.1 C from the station mean1906: 8.7 C, -0.3 C from the station mean1907: 7.5 C, -1.5 C from the station mean1909: 8.3 C, -0.6 C from the station mean1910: 8.8 C, -0.2 C from the station mean1911: 8.9 C, -0.1 C from the station mean1912: 8.4 C, -0.6 C from the station mean1913: 9.8 C, +0.8 C from the station mean1914: 8.0 C, -1.0 C from the station mean1915: 9.2 C, +0.3 C from the station mean1916: 8.1 C, -0.9 C from the station mean1917: 7.0 C, -2.0 C from the station mean1918: 8.3 C, -0.7 C from the station mean1919: 9.2 C, +0.2 C from the station mean1920: 8.3 C, -0.7 C from the station mean1921: 9.9 C, +0.9 C from the station mean1922: 8.8 C, -0.2 C from the station mean1923: 8.2 C, -0.8 C from the station mean1924: 8.2 C, -0.8 C from the station mean1925: 8.6 C, -0.3 C from the station mean1926: 7.4 C, -1.6 C from the station mean1927: 8.9 C, -0.1 C from the station mean1928: 8.9 C, -0.1 C from the station mean1929: 8.7 C, -0.3 C from the station mean1930: 9.2 C, +0.2 C from the station mean1931: 9.7 C, +0.7 C from the station mean1932: 9.1 C, +0.1 C from the station mean1933: 9.0 C, +0.1 C from the station mean1934: 8.0 C, -0.9 C from the station mean1935: 8.3 C, -0.7 C from the station mean1936: 8.8 C, -0.2 C from the station mean1937: 9.4 C, +0.4 C from the station mean1938: 9.5 C, +0.5 C from the station mean1939: 8.8 C, -0.2 C from the station mean1940: 7.8 C, -1.2 C from the station mean1941: 9.2 C, +0.2 C from the station mean1942: 9.3 C, +0.3 C from the station mean1943: 8.5 C, -0.5 C from the station mean1944: 9.1 C, +0.1 C from the station mean1945: 8.8 C, -0.1 C from the station mean1946: 9.3 C, +0.3 C from the station mean1947: 9.1 C, +0.2 C from the station mean1948: 9.1 C, +0.1 C from the station mean1949: 11.0 C, +2.0 C from the station mean1950: 9.3 C, +0.3 C from the station mean1951: 9.7 C, +0.7 C from the station mean1952: 10.0 C, +1.1 C from the station mean1953: 10.7 C, +1.7 C from the station mean1954: 9.4 C, +0.4 C from the station mean1955: 9.5 C, +0.5 C from the station mean1956: 8.5 C, -0.5 C from the station mean1957: 9.6 C, +0.7 C from the station mean1958: 7.9 C, -1.1 C from the station mean1959: 9.4 C, +0.4 C from the station mean1960: 8.8 C, -0.2 C from the station mean1961: 8.4 C, -0.6 C from the station mean1962: 7.6 C, -1.3 C from the station mean1964: 8.8 C, -0.2 C from the station mean1965: 7.9 C, -1.1 C from the station mean1966: 8.4 C, -0.6 C from the station mean1967: 8.5 C, -0.4 C from the station mean1968: 8.9 C, -0.1 C from the station mean1969: 9.2 C, +0.2 C from the station mean1970: 8.8 C, -0.2 C from the station mean1971: 8.9 C, -0.1 C from the station mean1972: 8.6 C, -0.4 C from the station mean1973: 10.2 C, +1.2 C from the station mean1974: 9.1 C, +0.1 C from the station mean1975: 9.6 C, +0.7 C from the station mean1976: 9.2 C, +0.2 C from the station mean1977: 9.5 C, +0.5 C from the station mean1978: 8.8 C, -0.2 C from the station mean1980: 7.9 C, -1.0 C from the station mean1981: 9.1 C, +0.1 C from the station mean1982: 8.7 C, -0.3 C from the station mean1983: 8.7 C, -0.2 C from the station mean1984: 8.9 C, -0.1 C from the station mean1985: 9.3 C, +0.3 C from the station mean1986: 9.3 C, +0.3 C from the station mean1987: 9.5 C, +0.5 C from the station mean1988: 9.1 C, +0.1 C from the station mean1989: 9.1 C, +0.2 C from the station mean1990: 11.1 C, +2.1 C from the station mean1991: 10.3 C, +1.3 C from the station mean1992: 7.8 C, -1.2 C from the station mean1993: 8.3 C, -0.6 C from the station mean1995: 8.7 C, -0.3 C from the station mean1996: 8.4 C, -0.6 C from the station mean1997: 8.3 C, -0.6 C from the station mean1998: 10.2 C, +1.3 C from the station mean1999: 9.6 C, +0.7 C from the station mean2000: 8.3 C, -0.6 C from the station mean2001: 9.2 C, +0.2 C from the station mean2002: 9.7 C, +0.7 C from the station mean2003: 8.6 C, -0.4 C from the station mean2004: 9.0 C, 0.0 C from the station mean2005: 9.4 C, +0.4 C from the station mean2006: 10.0 C, +1.1 C from the station mean2007: 8.8 C, -0.1 C from the station mean2009: 8.4 C, -0.6 C from the station mean2010: 9.9 C, +0.9 C from the station mean2011: 9.5 C, +0.5 C from the station mean2012: 10.6 C, +1.6 C from the station mean2013: 9.0 C, 0.0 C from the station mean2014: 8.5 C, -0.5 C from the station mean2015: 8.8 C, -0.2 C from the station mean2016: 10.0 C, +1.0 C from the station mean2017: 9.4 C, +0.4 C from the station mean2018: 9.4 C, +0.4 C from the station mean2019: 8.7 C, -0.3 C from the station mean2020: 10.2 C, +1.2 C from the station mean2021: 10.1 C, +1.1 C from the station mean2022: 9.8 C, +0.8 C from the station mean2023: 10.4 C, +1.4 C from the station mean2024: 10.5 C, +1.5 C from the station mean2025: 9.2 C, +0.2 C from the station mean18931900191019201930194019501960197019801990200020102020
One stripe for each of 124 complete years at Amherst, 1893 to 2025. Blue stripes are years cooler than the station's own mean of 9.0 C (48.1 F); red stripes are warmer. The coolest year was 1917, at 7.0 C (44.6 F), and the warmest was 1990, at 11.1 C (51.9 F). The strongest colour marks a difference of 2.1 C (3.8 F).
Annual mean temperature at Amherst as warming stripes, 1893 to 2025
YearAnnual mean temperatureDifference from the station mean
18937.5 C-1.49 C
18948.8 C-0.21 C
18958.1 C-0.85 C
18989.1 C+0.08 C
18998.4 C-0.58 C
19008.9 C-0.06 C
19028.6 C-0.34 C
19038.3 C-0.67 C
19057.8 C-1.13 C
19068.7 C-0.28 C
19077.5 C-1.51 C
19098.3 C-0.63 C
19108.8 C-0.21 C
19118.9 C-0.10 C
19128.4 C-0.62 C
19139.8 C+0.81 C
19148.0 C-0.99 C
19159.2 C+0.26 C
19168.1 C-0.92 C
19177.0 C-1.98 C
19188.3 C-0.65 C
19199.2 C+0.20 C
19208.3 C-0.70 C
19219.9 C+0.90 C
19228.8 C-0.19 C
19238.2 C-0.76 C
19248.2 C-0.75 C
19258.6 C-0.33 C
19267.4 C-1.62 C
19278.9 C-0.12 C
19288.9 C-0.10 C
19298.7 C-0.28 C
19309.2 C+0.20 C
19319.7 C+0.71 C
19329.1 C+0.15 C
19339.0 C+0.07 C
19348.0 C-0.94 C
19358.3 C-0.65 C
19368.8 C-0.20 C
19379.4 C+0.39 C
19389.5 C+0.53 C
19398.8 C-0.15 C
19407.8 C-1.18 C
19419.2 C+0.18 C
19429.3 C+0.32 C
19438.5 C-0.52 C
19449.1 C+0.09 C
19458.8 C-0.13 C
19469.3 C+0.29 C
19479.1 C+0.17 C
19489.1 C+0.15 C
194911.0 C+1.99 C
19509.3 C+0.34 C
19519.7 C+0.68 C
195210.0 C+1.06 C
195310.7 C+1.74 C
19549.4 C+0.44 C
19559.5 C+0.53 C
19568.5 C-0.49 C
19579.6 C+0.66 C
19587.9 C-1.06 C
19599.4 C+0.43 C
19608.8 C-0.17 C
19618.4 C-0.62 C
19627.6 C-1.34 C
19648.8 C-0.21 C
19657.9 C-1.08 C
19668.4 C-0.61 C
19678.5 C-0.44 C
19688.9 C-0.09 C
19699.2 C+0.19 C
19708.8 C-0.19 C
19718.9 C-0.07 C
19728.6 C-0.42 C
197310.2 C+1.18 C
19749.1 C+0.10 C
19759.6 C+0.67 C
19769.2 C+0.21 C
19779.5 C+0.54 C
19788.8 C-0.22 C
19807.9 C-1.04 C
19819.1 C+0.13 C
19828.7 C-0.28 C
19838.7 C-0.24 C
19848.9 C-0.12 C
19859.3 C+0.33 C
19869.3 C+0.34 C
19879.5 C+0.48 C
19889.1 C+0.13 C
19899.1 C+0.16 C
199011.1 C+2.10 C
199110.3 C+1.31 C
19927.8 C-1.20 C
19938.3 C-0.63 C
19958.7 C-0.28 C
19968.4 C-0.61 C
19978.3 C-0.63 C
199810.2 C+1.26 C
19999.6 C+0.67 C
20008.3 C-0.64 C
20019.2 C+0.19 C
20029.7 C+0.69 C
20038.6 C-0.42 C
20049.0 C-0.02 C
20059.4 C+0.38 C
200610.0 C+1.06 C
20078.8 C-0.13 C
20098.4 C-0.55 C
20109.9 C+0.89 C
20119.5 C+0.48 C
201210.6 C+1.63 C
20139.0 C+0.04 C
20148.5 C-0.52 C
20158.8 C-0.19 C
201610.0 C+1.01 C
20179.4 C+0.45 C
20189.4 C+0.41 C
20198.7 C-0.32 C
202010.2 C+1.19 C
202110.1 C+1.10 C
20229.8 C+0.79 C
202310.4 C+1.44 C
202410.5 C+1.52 C
20259.2 C+0.24 C

The annual mean temperature here has risen by 0.08 C (0.05 to 0.12) per decade over 1893 to 2025. In Fahrenheit: 0.1 F (0.1 to 0.2) per decade. The slope is a straight line fitted to 124 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Amherst
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.08 C (0.05 to 0.12) per decade0.1 F (0.1 to 0.2) per decade1893 to 2025124Rise
Mean daily maximum0.1 C (0.1 to 0.2) per decade0.2 F (0.2 to 0.3) per decade1893 to 2025124Rise
Mean daily minimum0.03 C (-0.01 to 0.07) per decade0.05 F (-0.02 to 0.13) per decade1893 to 2025124Not clearly different from zero

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1893 to 2026
Yearly extremes at Amherst: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)40.0 C (104.0 F)191135.0 C (95.0 F)133
Coldest night (TNn)-34.4 C (-29.9 F)1961-23.9 C (-11.0 F)133
Wettest day (Rx1day)192.0 mm (7.6 in)200561.5 mm (2.4 in)133
Wettest five days (Rx5day)303.8 mm (12.0 in)193892.2 mm (3.6 in)133
Longest dry spell (CDD)52 days192417 days133

Hottest day (TXx)

Hottest day (TXx) at Amherst by year The hottest day of the year at Amherst, 1893 to 2026. The record is 40.0 C (104.0 F) in 1911, marked on the chart; the median year is 35.0 C (95.0 F). 3032.53537.5401900192019401960198020002020Record: 40.0 C (104.0 F) in 1911
The hottest day of the year at Amherst, 1893 to 2026. The record is 40.0 C (104.0 F) in 1911, marked on the chart; the median year is 35.0 C (95.0 F).
Hottest day (TXx) at Amherst by year
YearHottest day (TXx)
189332.8 C (91.0 F)
189434.4 C (93.9 F)
189532.2 C (90.0 F)
189733.3 C (91.9 F)
189835.0 C (95.0 F)
189932.8 C (91.0 F)
190033.3 C (91.9 F)
190136.1 C (97.0 F)
190232.2 C (90.0 F)
190336.1 C (97.0 F)
190434.4 C (93.9 F)
190533.9 C (93.0 F)
190632.8 C (91.0 F)
190735.6 C (96.1 F)
190833.9 C (93.0 F)
190933.9 C (93.0 F)
191036.1 C (97.0 F)
191140.0 C (104.0 F)
191236.7 C (98.1 F)
191337.8 C (100.0 F)
191436.1 C (97.0 F)
191533.9 C (93.0 F)
191635.6 C (96.1 F)
191736.7 C (98.1 F)
191837.8 C (100.0 F)
191938.3 C (100.9 F)
192033.3 C (91.9 F)
192135.6 C (96.1 F)
192234.4 C (93.9 F)
192336.1 C (97.0 F)
192436.1 C (97.0 F)
192536.1 C (97.0 F)
192637.8 C (100.0 F)
192732.8 C (91.0 F)
192833.9 C (93.0 F)
192936.1 C (97.0 F)
193035.0 C (95.0 F)
193135.6 C (96.1 F)
193233.3 C (91.9 F)
193336.7 C (98.1 F)
193433.9 C (93.0 F)
193535.0 C (95.0 F)
193636.7 C (98.1 F)
193735.6 C (96.1 F)
193833.9 C (93.0 F)
193933.9 C (93.0 F)
194034.4 C (93.9 F)
194134.4 C (93.9 F)
194233.9 C (93.0 F)
194335.0 C (95.0 F)
194437.2 C (99.0 F)
194533.3 C (91.9 F)
194635.0 C (95.0 F)
194735.0 C (95.0 F)
194837.8 C (100.0 F)
194936.7 C (98.1 F)
195032.8 C (91.0 F)
195132.8 C (91.0 F)
195236.7 C (98.1 F)
195337.2 C (99.0 F)
195435.0 C (95.0 F)
195536.7 C (98.1 F)
195635.0 C (95.0 F)
195734.4 C (93.9 F)
195832.8 C (91.0 F)
195933.9 C (93.0 F)
196031.7 C (89.1 F)
196133.3 C (91.9 F)
196232.8 C (91.0 F)
196337.2 C (99.0 F)
196435.6 C (96.1 F)
196534.4 C (93.9 F)
196636.7 C (98.1 F)
196734.4 C (93.9 F)
196835.6 C (96.1 F)
196933.9 C (93.0 F)
197033.9 C (93.0 F)
197133.3 C (91.9 F)
197232.8 C (91.0 F)
197335.0 C (95.0 F)
197433.9 C (93.0 F)
197536.7 C (98.1 F)
197633.9 C (93.0 F)
197736.1 C (97.0 F)
197835.6 C (96.1 F)
197934.4 C (93.9 F)
198035.6 C (96.1 F)
198134.4 C (93.9 F)
198235.6 C (96.1 F)
198333.3 C (91.9 F)
198432.2 C (90.0 F)
198532.8 C (91.0 F)
198634.4 C (93.9 F)
198735.0 C (95.0 F)
198836.7 C (98.1 F)
198934.4 C (93.9 F)
199033.9 C (93.0 F)
199137.2 C (99.0 F)
199234.4 C (93.9 F)
199336.7 C (98.1 F)
199435.6 C (96.1 F)
199535.0 C (95.0 F)
199633.3 C (91.9 F)
199733.9 C (93.0 F)
199832.8 C (91.0 F)
199936.1 C (97.0 F)
200032.8 C (91.0 F)
200136.7 C (98.1 F)
200236.1 C (97.0 F)
200335.0 C (95.0 F)
200433.3 C (91.9 F)
200534.4 C (93.9 F)
200636.1 C (97.0 F)
200734.4 C (93.9 F)
200835.6 C (96.1 F)
200933.3 C (91.9 F)
201036.7 C (98.1 F)
201136.7 C (98.1 F)
201235.6 C (96.1 F)
201334.4 C (93.9 F)
201432.8 C (91.0 F)
201533.9 C (93.0 F)
201635.6 C (96.1 F)
201734.4 C (93.9 F)
201836.1 C (97.0 F)
201935.0 C (95.0 F)
202035.6 C (96.1 F)
202135.0 C (95.0 F)
202236.1 C (97.0 F)
202333.3 C (91.9 F)
202432.8 C (91.0 F)
202536.7 C (98.1 F)
202636.1 C (97.0 F)

Coldest night (TNn)

Coldest night (TNn) at Amherst by year The coldest night of the year at Amherst, 1893 to 2026. The record is -34.4 C (-29.9 F) in 1961, marked on the chart; the median year is -23.9 C (-11.0 F). -40-30-20-101900192019401960198020002020Record: -34.4 C (-29.9 F) in 1961
The coldest night of the year at Amherst, 1893 to 2026. The record is -34.4 C (-29.9 F) in 1961, marked on the chart; the median year is -23.9 C (-11.0 F).
Coldest night (TNn) at Amherst by year
YearColdest night (TNn)
1893-23.9 C (-11.0 F)
1894-26.1 C (-15.0 F)
1895-23.3 C (-9.9 F)
1897-23.3 C (-9.9 F)
1898-26.1 C (-15.0 F)
1899-27.8 C (-18.0 F)
1900-21.1 C (-6.0 F)
1901-23.3 C (-9.9 F)
1902-26.1 C (-15.0 F)
1903-24.4 C (-11.9 F)
1904-30.0 C (-22.0 F)
1905-25.0 C (-13.0 F)
1906-22.2 C (-8.0 F)
1907-31.1 C (-24.0 F)
1908-24.4 C (-11.9 F)
1909-22.2 C (-8.0 F)
1910-22.8 C (-9.0 F)
1911-19.4 C (-2.9 F)
1912-28.3 C (-18.9 F)
1913-20.0 C (-4.0 F)
1914-28.3 C (-18.9 F)
1915-20.0 C (-4.0 F)
1916-26.7 C (-16.1 F)
1917-30.0 C (-22.0 F)
1918-30.0 C (-22.0 F)
1919-22.8 C (-9.0 F)
1920-27.8 C (-18.0 F)
1921-21.1 C (-6.0 F)
1922-25.6 C (-14.1 F)
1923-24.4 C (-11.9 F)
1924-22.2 C (-8.0 F)
1925-25.0 C (-13.0 F)
1926-23.3 C (-9.9 F)
1927-24.4 C (-11.9 F)
1928-20.0 C (-4.0 F)
1929-23.9 C (-11.0 F)
1930-21.1 C (-6.0 F)
1931-23.9 C (-11.0 F)
1932-23.9 C (-11.0 F)
1933-28.9 C (-20.0 F)
1934-30.0 C (-22.0 F)
1935-29.4 C (-20.9 F)
1936-24.4 C (-11.9 F)
1937-14.4 C (6.1 F)
1938-24.4 C (-11.9 F)
1939-20.0 C (-4.0 F)
1940-23.3 C (-9.9 F)
1941-22.8 C (-9.0 F)
1942-26.1 C (-15.0 F)
1943-30.6 C (-23.1 F)
1944-21.1 C (-6.0 F)
1945-23.3 C (-9.9 F)
1946-22.2 C (-8.0 F)
1947-18.3 C (-0.9 F)
1948-26.7 C (-16.1 F)
1949-21.7 C (-7.1 F)
1950-22.8 C (-9.0 F)
1951-22.8 C (-9.0 F)
1952-21.7 C (-7.1 F)
1953-13.9 C (7.0 F)
1954-25.0 C (-13.0 F)
1955-22.2 C (-8.0 F)
1956-18.9 C (-2.0 F)
1957-28.3 C (-18.9 F)
1958-24.4 C (-11.9 F)
1959-20.0 C (-4.0 F)
1960-23.9 C (-11.0 F)
1961-34.4 C (-29.9 F)
1962-23.3 C (-9.9 F)
1963-28.9 C (-20.0 F)
1964-28.3 C (-18.9 F)
1965-26.1 C (-15.0 F)
1966-24.4 C (-11.9 F)
1967-30.6 C (-23.1 F)
1968-31.7 C (-25.1 F)
1969-23.9 C (-11.0 F)
1970-28.3 C (-18.9 F)
1971-33.9 C (-29.0 F)
1972-26.1 C (-15.0 F)
1973-24.4 C (-11.9 F)
1974-26.1 C (-15.0 F)
1975-27.2 C (-17.0 F)
1976-27.8 C (-18.0 F)
1977-27.2 C (-17.0 F)
1978-22.2 C (-8.0 F)
1979-22.8 C (-9.0 F)
1980-28.9 C (-20.0 F)
1981-32.8 C (-27.0 F)
1982-28.9 C (-20.0 F)
1983-24.4 C (-11.9 F)
1984-32.2 C (-26.0 F)
1985-25.0 C (-13.0 F)
1986-20.6 C (-5.1 F)
1987-24.4 C (-11.9 F)
1988-28.3 C (-18.9 F)
1989-23.3 C (-9.9 F)
1990-21.7 C (-7.1 F)
1991-20.6 C (-5.1 F)
1992-20.0 C (-4.0 F)
1993-23.3 C (-9.9 F)
1994-29.4 C (-20.9 F)
1995-23.3 C (-9.9 F)
1996-26.7 C (-16.1 F)
1997-20.0 C (-4.0 F)
1998-20.0 C (-4.0 F)
1999-23.3 C (-9.9 F)
2000-20.6 C (-5.1 F)
2001-21.1 C (-6.0 F)
2002-15.0 C (5.0 F)
2003-27.2 C (-17.0 F)
2004-22.2 C (-8.0 F)
2005-25.0 C (-13.0 F)
2006-17.2 C (1.0 F)
2007-19.4 C (-2.9 F)
2008-24.4 C (-11.9 F)
2009-25.6 C (-14.1 F)
2010-17.2 C (1.0 F)
2011-23.9 C (-11.0 F)
2012-17.8 C (0.0 F)
2013-22.8 C (-9.0 F)
2014-24.4 C (-11.9 F)
2015-26.7 C (-16.1 F)
2016-24.4 C (-11.9 F)
2017-22.8 C (-9.0 F)
2018-27.8 C (-18.0 F)
2019-22.8 C (-9.0 F)
2020-18.9 C (-2.0 F)
2021-21.7 C (-7.1 F)
2022-21.1 C (-6.0 F)
2023-23.9 C (-11.0 F)
2024-16.7 C (1.9 F)
2025-24.4 C (-11.9 F)
2026-26.1 C (-15.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Amherst by year The wettest day of the year at Amherst, 1893 to 2026. The record is 192.0 mm (7.6 in) in 2005, marked on the chart; the median year is 61.5 mm (2.4 in). 0501001502001900192019401960198020002020Record: 192.0 mm (7.6 in) in 2005
The wettest day of the year at Amherst, 1893 to 2026. The record is 192.0 mm (7.6 in) in 2005, marked on the chart; the median year is 61.5 mm (2.4 in).
Wettest day (Rx1day) at Amherst by year
YearWettest day (Rx1day)
189361.5 mm (2.4 in)
189449.0 mm (1.9 in)
189565.3 mm (2.6 in)
1897125.5 mm (4.9 in)
189850.8 mm (2.0 in)
189975.7 mm (3.0 in)
190080.3 mm (3.2 in)
190182.6 mm (3.3 in)
190277.0 mm (3.0 in)
190378.2 mm (3.1 in)
190466.5 mm (2.6 in)
190550.5 mm (2.0 in)
190656.4 mm (2.2 in)
190795.0 mm (3.7 in)
190842.7 mm (1.7 in)
190963.8 mm (2.5 in)
191043.7 mm (1.7 in)
191187.6 mm (3.4 in)
191245.7 mm (1.8 in)
191342.4 mm (1.7 in)
191465.8 mm (2.6 in)
191578.7 mm (3.1 in)
191658.4 mm (2.3 in)
191769.3 mm (2.7 in)
191880.5 mm (3.2 in)
191960.2 mm (2.4 in)
192086.4 mm (3.4 in)
192166.0 mm (2.6 in)
192255.9 mm (2.2 in)
192361.0 mm (2.4 in)
192448.3 mm (1.9 in)
192551.3 mm (2.0 in)
192639.6 mm (1.6 in)
192787.1 mm (3.4 in)
192856.9 mm (2.2 in)
192946.7 mm (1.8 in)
193041.7 mm (1.6 in)
193184.8 mm (3.3 in)
193272.6 mm (2.9 in)
1933154.4 mm (6.1 in)
1934113.0 mm (4.4 in)
193561.5 mm (2.4 in)
193654.1 mm (2.1 in)
193757.7 mm (2.3 in)
1938100.6 mm (4.0 in)
193950.8 mm (2.0 in)
194065.5 mm (2.6 in)
194152.3 mm (2.1 in)
194259.2 mm (2.3 in)
194341.4 mm (1.6 in)
194467.6 mm (2.7 in)
194571.9 mm (2.8 in)
194687.9 mm (3.5 in)
194762.5 mm (2.5 in)
194846.7 mm (1.8 in)
194939.6 mm (1.6 in)
195057.9 mm (2.3 in)
195151.8 mm (2.0 in)
195268.6 mm (2.7 in)
195345.0 mm (1.8 in)
195478.7 mm (3.1 in)
1955105.2 mm (4.1 in)
195633.5 mm (1.3 in)
195769.6 mm (2.7 in)
195860.2 mm (2.4 in)
1959104.1 mm (4.1 in)
196073.2 mm (2.9 in)
196194.5 mm (3.7 in)
196240.1 mm (1.6 in)
196335.6 mm (1.4 in)
196444.5 mm (1.8 in)
196551.3 mm (2.0 in)
196681.3 mm (3.2 in)
196769.3 mm (2.7 in)
196844.2 mm (1.7 in)
196975.2 mm (3.0 in)
197057.2 mm (2.3 in)
197169.9 mm (2.8 in)
197244.5 mm (1.8 in)
197385.3 mm (3.4 in)
197456.1 mm (2.2 in)
197587.9 mm (3.5 in)
197643.9 mm (1.7 in)
197764.0 mm (2.5 in)
197865.0 mm (2.6 in)
197958.9 mm (2.3 in)
198058.2 mm (2.3 in)
198144.5 mm (1.8 in)
198256.4 mm (2.2 in)
198362.2 mm (2.4 in)
198470.6 mm (2.8 in)
198540.4 mm (1.6 in)
198666.0 mm (2.6 in)
198772.1 mm (2.8 in)
198854.6 mm (2.1 in)
198971.1 mm (2.8 in)
199059.7 mm (2.4 in)
199179.2 mm (3.1 in)
199253.8 mm (2.1 in)
199342.9 mm (1.7 in)
199448.0 mm (1.9 in)
199586.4 mm (3.4 in)
199658.4 mm (2.3 in)
199740.9 mm (1.6 in)
199858.4 mm (2.3 in)
1999121.4 mm (4.8 in)
200088.1 mm (3.5 in)
200144.7 mm (1.8 in)
200257.9 mm (2.3 in)
200358.7 mm (2.3 in)
200479.0 mm (3.1 in)
2005192.0 mm (7.6 in)
200650.0 mm (2.0 in)
200765.8 mm (2.6 in)
2008123.2 mm (4.9 in)
200952.6 mm (2.1 in)
201070.1 mm (2.8 in)
201182.0 mm (3.2 in)
201268.8 mm (2.7 in)
201368.1 mm (2.7 in)
2014101.1 mm (4.0 in)
201553.3 mm (2.1 in)
201655.4 mm (2.2 in)
201775.9 mm (3.0 in)
201857.9 mm (2.3 in)
201956.1 mm (2.2 in)
202058.4 mm (2.3 in)
202189.7 mm (3.5 in)
202256.6 mm (2.2 in)
202386.4 mm (3.4 in)
202464.8 mm (2.6 in)
202553.3 mm (2.1 in)
202645.5 mm (1.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Amherst by year The wettest five days of the year at Amherst, 1893 to 2026. The record is 303.8 mm (12.0 in) in 1938, marked on the chart; the median year is 92.2 mm (3.6 in). 01002003004001900192019401960198020002020Record: 303.8 mm (12.0 in) in 1938
The wettest five days of the year at Amherst, 1893 to 2026. The record is 303.8 mm (12.0 in) in 1938, marked on the chart; the median year is 92.2 mm (3.6 in).
Wettest five days (Rx5day) at Amherst by year
YearWettest five days (Rx5day)
189378.8 mm (3.1 in)
189481.3 mm (3.2 in)
189568.1 mm (2.7 in)
1897120.7 mm (4.8 in)
189867.5 mm (2.7 in)
1899106.7 mm (4.2 in)
190093.2 mm (3.7 in)
190191.0 mm (3.6 in)
190280.3 mm (3.2 in)
190391.0 mm (3.6 in)
1904104.9 mm (4.1 in)
1905119.9 mm (4.7 in)
190687.7 mm (3.5 in)
1907102.4 mm (4.0 in)
190848.3 mm (1.9 in)
190987.3 mm (3.4 in)
191067.8 mm (2.7 in)
1911159.3 mm (6.3 in)
191272.3 mm (2.8 in)
191372.1 mm (2.8 in)
191481.3 mm (3.2 in)
1915136.0 mm (5.4 in)
191669.6 mm (2.7 in)
191792.2 mm (3.6 in)
191888.9 mm (3.5 in)
191985.1 mm (3.4 in)
1920130.9 mm (5.2 in)
1921122.1 mm (4.8 in)
1922105.4 mm (4.1 in)
1923110.0 mm (4.3 in)
192475.0 mm (3.0 in)
192576.5 mm (3.0 in)
192656.7 mm (2.2 in)
1927143.0 mm (5.6 in)
1928119.1 mm (4.7 in)
192965.8 mm (2.6 in)
193062.7 mm (2.5 in)
193193.7 mm (3.7 in)
193277.2 mm (3.0 in)
1933176.0 mm (6.9 in)
1934117.0 mm (4.6 in)
193563.3 mm (2.5 in)
193679.5 mm (3.1 in)
193789.2 mm (3.5 in)
1938303.8 mm (12.0 in)
193969.3 mm (2.7 in)
194070.7 mm (2.8 in)
194178.3 mm (3.1 in)
1942101.6 mm (4.0 in)
194399.8 mm (3.9 in)
194499.6 mm (3.9 in)
1945115.4 mm (4.5 in)
1946114.5 mm (4.5 in)
1947113.6 mm (4.5 in)
194870.9 mm (2.8 in)
194974.9 mm (2.9 in)
195071.6 mm (2.8 in)
195189.6 mm (3.5 in)
195277.6 mm (3.1 in)
195394.7 mm (3.7 in)
1954110.3 mm (4.3 in)
1955196.3 mm (7.7 in)
195679.0 mm (3.1 in)
195779.5 mm (3.1 in)
195873.2 mm (2.9 in)
1959137.6 mm (5.4 in)
196099.6 mm (3.9 in)
1961114.3 mm (4.5 in)
196265.0 mm (2.6 in)
196345.4 mm (1.8 in)
196477.3 mm (3.0 in)
196574.5 mm (2.9 in)
196681.6 mm (3.2 in)
196791.2 mm (3.6 in)
196874.2 mm (2.9 in)
1969148.4 mm (5.8 in)
197086.1 mm (3.4 in)
197174.8 mm (2.9 in)
197298.3 mm (3.9 in)
1973126.2 mm (5.0 in)
197489.1 mm (3.5 in)
1975178.3 mm (7.0 in)
197685.3 mm (3.4 in)
197798.5 mm (3.9 in)
197889.0 mm (3.5 in)
197999.6 mm (3.9 in)
198076.3 mm (3.0 in)
198189.8 mm (3.5 in)
1982112.0 mm (4.4 in)
198387.1 mm (3.4 in)
1984188.8 mm (7.4 in)
198578.6 mm (3.1 in)
1986100.8 mm (4.0 in)
198792.4 mm (3.6 in)
198883.6 mm (3.3 in)
1989134.8 mm (5.3 in)
1990104.7 mm (4.1 in)
1991167.1 mm (6.6 in)
199267.8 mm (2.7 in)
199369.9 mm (2.8 in)
199487.6 mm (3.4 in)
1995100.6 mm (4.0 in)
199699.9 mm (3.9 in)
199747.0 mm (1.9 in)
1998115.5 mm (4.5 in)
1999155.8 mm (6.1 in)
2000107.4 mm (4.2 in)
200178.7 mm (3.1 in)
200275.9 mm (3.0 in)
2003116.4 mm (4.6 in)
2004116.6 mm (4.6 in)
2005233.1 mm (9.2 in)
200697.2 mm (3.8 in)
200796.6 mm (3.8 in)
2008151.1 mm (5.9 in)
2009101.1 mm (4.0 in)
2010151.6 mm (6.0 in)
2011119.1 mm (4.7 in)
2012107.4 mm (4.2 in)
2013115.3 mm (4.5 in)
2014104.4 mm (4.1 in)
201578.8 mm (3.1 in)
201671.1 mm (2.8 in)
201793.6 mm (3.7 in)
2018114.0 mm (4.5 in)
201961.7 mm (2.4 in)
202091.4 mm (3.6 in)
202195.5 mm (3.8 in)
2022105.8 mm (4.2 in)
2023107.2 mm (4.2 in)
202496.1 mm (3.8 in)
202589.7 mm (3.5 in)
202682.6 mm (3.3 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Amherst by year The longest dry spell of the year at Amherst, 1893 to 2026. The record is 52 days in 1924, marked on the chart; the median year is 17 days. 02040601900192019401960198020002020Record: 52 days in 1924
The longest dry spell of the year at Amherst, 1893 to 2026. The record is 52 days in 1924, marked on the chart; the median year is 17 days.
Longest dry spell (CDD) at Amherst by year
YearLongest dry spell (CDD)
18939 days
189422 days
189515 days
189719 days
189810 days
189916 days
190018 days
190124 days
190218 days
190317 days
190422 days
190521 days
190616 days
190713 days
190818 days
190914 days
191018 days
191116 days
191218 days
191321 days
191421 days
191524 days
191615 days
191721 days
191819 days
191920 days
192020 days
192120 days
192221 days
192317 days
192452 days
192512 days
192613 days
192715 days
192823 days
192918 days
193019 days
193114 days
193218 days
193313 days
193414 days
193520 days
193615 days
193713 days
193816 days
193922 days
194017 days
194119 days
194220 days
194319 days
194419 days
194514 days
194619 days
194717 days
194816 days
194921 days
195023 days
195116 days
195232 days
195332 days
195413 days
195525 days
195616 days
195716 days
195816 days
195914 days
196018 days
196117 days
196215 days
196328 days
196421 days
196521 days
196614 days
196716 days
196822 days
196916 days
197019 days
197121 days
197211 days
197315 days
197413 days
197515 days
197618 days
197716 days
197813 days
197913 days
198023 days
198126 days
198217 days
198317 days
198420 days
198516 days
198612 days
198719 days
198815 days
198913 days
199012 days
199112 days
199216 days
199312 days
199411 days
199518 days
199620 days
199719 days
199818 days
199919 days
200011 days
200138 days
200211 days
200319 days
200427 days
200514 days
200617 days
200728 days
200811 days
200915 days
201015 days
201113 days
201219 days
201318 days
201418 days
201525 days
201619 days
201715 days
201815 days
201911 days
202018 days
202117 days
202211 days
202316 days
202426 days
202517 days
202613 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

124 years with a frost

Across 124 years with a frost, the median last spring frost at Amherst falls on 9 May and the median first autumn frost on 5 October, which leaves a median of 149 days between them.

In 1995 to 2025 the median growing season was 159 days. That is 6 days more than in 1893 to 1927.

Fitted over all years, the growing season changes by +0.4 days per decade at this station.

Frost dates and growing season at Amherst
MeasureMedian, all yearsEarliest period (1893 to 1927)Recent period (1995 to 2025)Recent against earliestFitted trend
Last spring frost9 May6 May8 May2 days later+0.2 days per decade
First autumn frost5 October4 October11 October7 days later+0.5 days per decade
Growing days149 days153 days159 days6 days more+0.4 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

123 years, 1899 to 2025

A day with at least 61.8 mm (2.4 in) of rain is expected about once in 2 years. A day with at least 144.9 mm (5.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Amherst: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years61.8 mm (2.4 in)
5 years80.5 mm (3.2 in)
10 years94.2 mm (3.7 in)
25 years113.2 mm (4.5 in)
50 years128.5 mm (5.1 in)
100 years144.9 mm (5.7 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 123 years of values from 1899 to 2025.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 192.0 mm (7.6 in) in 2005; 154.4 mm (6.1 in) in 1933; 123.2 mm (4.9 in) in 2008.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Amherst, at 1929. Each is measured against neighbouring stations.

  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1929 ran 0.2 C (0.3 F) lower than in the years before (possible change).
Suspected changes in the annual mean temperature at Amherst, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
1929-0.1-0.3possible5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Climate Twins

2011 to 2025 against 1961 to 1990

Over 2011 to 2025, Amherst had a mean temperature of 9.6 C (49.3 F) and 1,205.6 mm (47.5 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Suffern (United States, 195 km away), Haverhill (United States, 128 km away) and Danbury (United States, 132 km away).

Climate twins of Amherst: stations whose 1961 to 1990 climate is closest to its 2011 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
SuffernUnited States195 km (121 mi)9.6 C (49.3 F)1,178.8 mm (46.4 in)0.55
HaverhillUnited States128 km (80 mi)9.6 C (49.3 F)1,127.5 mm (44.4 in)0.61
DanburyUnited States132 km (82 mi)9.7 C (49.5 F)1,196.8 mm (47.1 in)0.64

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

  • Data for Amherst standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Amherst threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-12).