Built 2026-10-16 (16 October 2026)

Winchester 7 SE Weather Records (USC00449186)

Record envelope, standing records and threshold days for Winchester 7 SE (USC00449186), Virginia, United States, with 115 years of record.

Key Facts for Winchester 7 SE

  • Winchester 7 SE (USC00449186) is a weather station in Virginia, United States at 39.11 latitude and -78.15 longitude, 207 m (680 ft) above sea level.
  • The station reports from 1912 to 2026, 115 years of record.
  • 1,464 records set at Winchester 7 SE still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Winchester 7 SE tied a daily record low minimum temperature of 10.0 C (50.0 F) on 25 July 2026.

About the Station

  • Location: Virginia, United States, 39.11 latitude, -78.15 longitude.
  • Elevation: 207 m (680 ft).
  • Period of record: 1912 to 2026, 115 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

16 days at or beyond a record
Daily record high and record low at Winchester 7 SE, with 2026 drawn through them The band shows the record high and record low for each calendar day at Winchester 7 SE. The lines show the 2026 daily maximum and minimum. 16 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Winchester 7 SE. The lines show the 2026 daily maximum and minimum. 16 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Winchester 7 SE, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan26.7 C (80.1 F)-27.8 C (-18.0 F)15.6 C (60.1 F)-17.8 C (0.0 F)
Feb27.2 C (81.0 F)-26.7 C (-16.1 F)20.0 C (68.0 F)-18.9 C (-2.0 F)
Mar31.7 C (89.1 F)-21.1 C (-6.0 F)31.1 C (88.0 F)-7.2 C (19.0 F)
Apr36.7 C (98.1 F)-11.1 C (12.0 F)32.8 C (91.0 F)-5.6 C (21.9 F)
May36.7 C (98.1 F)-2.2 C (28.0 F)36.1 C (97.0 F)1.7 C (35.1 F)
Jun40.0 C (104.0 F)2.2 C (36.0 F)36.1 C (97.0 F)5.6 C (42.1 F)
Jul41.7 C (107.1 F)5.6 C (42.1 F)38.9 C (102.0 F)10.0 C (50.0 F)
Aug41.7 C (107.1 F)2.2 C (36.0 F)33.9 C (93.0 F)13.9 C (57.0 F)
Sep39.4 C (102.9 F)-1.1 C (30.0 F)34.4 C (93.9 F)2.8 C (37.0 F)
Oct37.2 C (99.0 F)-8.9 C (16.0 F)28.9 C (84.0 F)5.0 C (41.0 F)
Nov29.4 C (84.9 F)-15.6 C (3.9 F)n/an/a
Dec26.7 C (80.1 F)-21.1 C (-6.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Winchester 7 SE by the year they were set 1,464 records at Winchester 7 SE still stand. 1927 holds the most, with 38. 0102030401912: 31913: 181914: 281915: 101916: 141917: 291918: 181919: 211920: 61921: 131922: 51923: 101924: 91925: 371926: 211927: 381928: 171929: 211930: 371931: 191932: 101933: 141934: 171935: 121936: 171937: 111938: 81939: 151940: 131941: 191942: 111943: 121944: 41945: 161946: 151947: 141948: 21949: 151950: 131951: 81952: 61953: 91954: 131955: 91956: 131957: 91958: 81959: 61960: 101961: 91962: 111963: 121964: 121965: 111966: 181967: 81968: 101969: 101970: 61971: 111972: 161973: 91974: 141975: 71976: 141977: 81978: 61979: 201980: 121981: 161982: 161983: 201984: 181985: 151986: 161987: 101988: 241989: 271990: 171991: 161992: 161993: 171994: 101995: 81996: 221997: 121998: 161999: 72000: 162001: 152002: 202003: 112004: 62005: 42006: 32007: 32008: 72009: 72010: 32011: 72012: 82013: 112014: 102015: 112016: 92017: 102018: 162019: 62020: 82021: 52022: 72023: 82024: 62025: 12026: 161912192419361948196019721984199620082020
1,464 records at Winchester 7 SE still stand. 1927 holds the most, with 38.
Standing records at Winchester 7 SE by the year they were set
Year setStanding records
19123
191318
191428
191510
191614
191729
191818
191921
19206
192113
19225
192310
19249
192537
192621
192738
192817
192921
193037
193119
193210
193314
193417
193512
193617
193711
19388
193915
194013
194119
194211
194312
19444
194516
194615
194714
19482
194915
195013
19518
19526
19539
195413
19559
195613
19579
19588
19596
196010
19619
196211
196312
196412
196511
196618
19678
196810
196910
19706
197111
197216
19739
197414
19757
197614
19778
19786
197920
198012
198116
198216
198320
198418
198515
198616
198710
198824
198927
199017
199116
199216
199317
199410
19958
199622
199712
199816
19997
200016
200115
200220
200311
20046
20054
20063
20073
20087
20097
20103
20117
20128
201311
201410
201511
20169
201710
201816
20196
20208
20215
20227
20238
20246
20251
202616

All-Time Record Progression

7 new records
When Winchester 7 SE set new all-time records 7 all-time records were set at Winchester 7 SE between 15 October 1942 and 19 January 1994. Each dot is a new record. Record daily precipitationRecord low minimum temperatureRecord low maximum temperature15 October 1942: Record daily precipitation 165.4 mm (6.5 in)2 January 1968: Record low minimum temperature -23.3 C (-9.9 F)9 January 1970: Record low maximum temperature -13.3 C (8.1 F)11 January 1982: Record low maximum temperature -15.0 C (5.0 F)17 January 1982: Record low minimum temperature -23.9 C (-11.0 F)22 January 1984: Record low minimum temperature -26.1 C (-15.0 F)19 January 1994: Record low minimum temperature -27.8 C (-18.0 F)19501960197019801990
7 all-time records were set at Winchester 7 SE between 15 October 1942 and 19 January 1994. Each dot is a new record.
When Winchester 7 SE set new all-time records
DateKindDetail
1942-10-15Record daily precipitationRecord daily precipitation 165.4 mm (6.5 in)
1968-01-02Record low minimum temperatureRecord low minimum temperature -23.3 C (-9.9 F)
1970-01-09Record low maximum temperatureRecord low maximum temperature -13.3 C (8.1 F)
1982-01-11Record low maximum temperatureRecord low maximum temperature -15.0 C (5.0 F)
1982-01-17Record low minimum temperatureRecord low minimum temperature -23.9 C (-11.0 F)
1984-01-22Record low minimum temperatureRecord low minimum temperature -26.1 C (-15.0 F)
1994-01-19Record low minimum temperatureRecord low minimum temperature -27.8 C (-18.0 F)

Wettest Day of Each Month

Oct: 165.4 mm (6.5 in)
Record daily precipitation for each month at Winchester 7 SE The wettest day on record for each calendar month at Winchester 7 SE. The most was 165.4 mm (6.5 in) on 15 October 1942. 050100150200 Jan: 63.2 mm (2.5 in), 1 January 1976 Jan Feb: 55.9 mm (2.2 in), 5 February 1998 Feb Mar: 89.2 mm (3.5 in), 29 March 1984 Mar Apr: 112.5 mm (4.4 in), 26 April 1937 Apr May: 97.8 mm (3.9 in), 16 May 2014 May Jun: 123.7 mm (4.9 in), 22 June 1972 Jun Jul: 74.9 mm (2.9 in), 13 July 1990 Jul Aug: 119.9 mm (4.7 in), 31 August 1975 Aug Sep: 89.4 mm (3.5 in), 18 September 2004 Sep Oct: 165.4 mm (6.5 in), 15 October 1942 Oct Nov: 87.9 mm (3.5 in), 28 November 1993 Nov Dec: 69.1 mm (2.7 in), 2 December 1974 Dec
The wettest day on record for each calendar month at Winchester 7 SE. The most was 165.4 mm (6.5 in) on 15 October 1942.
Record daily precipitation for each month at Winchester 7 SE
MonthRecord daily precipitation (mm)Date
Jan63.2 mm (2.5 in)1 January 1976
Feb55.9 mm (2.2 in)5 February 1998
Mar89.2 mm (3.5 in)29 March 1984
Apr112.5 mm (4.4 in)26 April 1937
May97.8 mm (3.9 in)16 May 2014
Jun123.7 mm (4.9 in)22 June 1972
Jul74.9 mm (2.9 in)13 July 1990
Aug119.9 mm (4.7 in)31 August 1975
Sep89.4 mm (3.5 in)18 September 2004
Oct165.4 mm (6.5 in)15 October 1942
Nov87.9 mm (3.5 in)28 November 1993
Dec69.1 mm (2.7 in)2 December 1974

Period of Record Coverage

1912 to 2026
Days with data per year at Winchester 7 SE 115 years of record at Winchester 7 SE, 1912 to 2026. 23 years have data for under 90 percent of days and are left out of rankings: 1912, 1918, 1921, 1922, 1923, 1924, 1925, 1926 and others. 1912: 265 of 366 days1913: 352 of 365 days1914: 361 of 365 days1915: 363 of 365 days1916: 359 of 366 days1917: 364 of 365 days1918: 326 of 365 days1919: 364 of 365 days1920: 334 of 366 days1921: 303 of 365 days1922: 287 of 365 days1923: 279 of 365 days1924: 299 of 366 days1925: 310 of 365 days1926: 325 of 365 days1927: 322 of 365 days1928: 332 of 366 days1929: 324 of 365 days1930: 330 of 365 days1931: 306 of 365 days1932: 335 of 366 days1933: 335 of 365 days1934: 337 of 365 days1935: 330 of 365 days1936: 352 of 366 days1937: 364 of 365 days1938: 365 of 365 days1939: 365 of 365 days1940: 366 of 366 days1941: 364 of 365 days1942: 365 of 365 days1943: 362 of 365 days1944: 365 of 366 days1945: 365 of 365 days1946: 365 of 365 days1947: 363 of 365 days1948: 153 of 366 days1949: 363 of 365 days1950: 361 of 365 days1951: 365 of 365 days1952: 365 of 366 days1953: 365 of 365 days1954: 365 of 365 days1955: 363 of 365 days1956: 364 of 366 days1957: 362 of 365 days1958: 364 of 365 days1959: 363 of 365 days1960: 366 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 364 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 364 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: 364 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 360 of 365 days1980: 305 of 366 days1981: 357 of 365 days1982: 362 of 365 days1983: 363 of 365 days1984: 364 of 366 days1985: 363 of 365 days1986: 364 of 365 days1987: 334 of 365 days1988: 306 of 366 days1989: 294 of 365 days1990: 364 of 365 days1991: 304 of 365 days1992: 305 of 366 days1993: 335 of 365 days1994: 363 of 365 days1995: 364 of 365 days1996: 364 of 366 days1997: 365 of 365 days1998: 334 of 365 days1999: 360 of 365 days2000: 364 of 366 days2001: 332 of 365 days2002: 364 of 365 days2003: 365 of 365 days2004: 365 of 366 days2005: 362 of 365 days2006: 363 of 365 days2007: 364 of 365 days2008: 332 of 366 days2009: 273 of 365 days2010: 120 of 365 days2011: 349 of 365 days2012: 364 of 366 days2013: 357 of 365 days2014: 226 of 365 days2015: 207 of 365 days2016: 342 of 366 days2017: 342 of 365 days2018: 330 of 365 days2019: 358 of 365 days2020: 365 of 366 days2021: 360 of 365 days2022: 361 of 365 days2023: 339 of 365 days2024: 363 of 366 days2025: 290 of 365 days2026: 230 of 365 days19201935195019651980199520102025
115 years of record at Winchester 7 SE, 1912 to 2026. 23 years have data for under 90 percent of days and are left out of rankings: 1912, 1918, 1921, 1922, 1923, 1924, 1925, 1926 and others.
Days with data per year at Winchester 7 SE
YearDays with dataShare of yearComplete
191226572%No
191335296%Yes
191436199%Yes
191536399%Yes
191635998%Yes
1917364100%Yes
191832689%No
1919364100%Yes
192033491%Yes
192130383%No
192228779%No
192327976%No
192429982%No
192531085%No
192632589%No
192732288%No
192833291%Yes
192932489%No
193033090%Yes
193130684%No
193233592%Yes
193333592%Yes
193433792%Yes
193533090%Yes
193635296%Yes
1937364100%Yes
1938365100%Yes
1939365100%Yes
1940366100%Yes
1941364100%Yes
1942365100%Yes
194336299%Yes
1944365100%Yes
1945365100%Yes
1946365100%Yes
194736399%Yes
194815342%No
194936399%Yes
195036199%Yes
1951365100%Yes
1952365100%Yes
1953365100%Yes
1954365100%Yes
195536399%Yes
195636499%Yes
195736299%Yes
1958364100%Yes
195936399%Yes
1960366100%Yes
1961365100%Yes
1962365100%Yes
1963364100%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967364100%Yes
1968366100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972365100%Yes
1973365100%Yes
1974364100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
197936099%Yes
198030583%No
198135798%Yes
198236299%Yes
198336399%Yes
198436499%Yes
198536399%Yes
1986364100%Yes
198733492%Yes
198830684%No
198929481%No
1990364100%Yes
199130483%No
199230583%No
199333592%Yes
199436399%Yes
1995364100%Yes
199636499%Yes
1997365100%Yes
199833492%Yes
199936099%Yes
200036499%Yes
200133291%Yes
2002364100%Yes
2003365100%Yes
2004365100%Yes
200536299%Yes
200636399%Yes
2007364100%Yes
200833291%Yes
200927375%No
201012033%No
201134996%Yes
201236499%Yes
201335798%Yes
201422662%No
201520757%No
201634293%Yes
201734294%Yes
201833090%Yes
201935898%Yes
2020365100%Yes
202136099%Yes
202236199%Yes
202333993%Yes
202436399%Yes
202529079%No
202623063%No

Latest Records

20
Latest records at Winchester 7 SE
DateStationRecordValueBeat old record byOld record stoodSignificance
25 July 2026Winchester 7 SE, USdaily low min (Tie)10.0 C (50.0 F)tie40 years5 of 100 (Routine)
16 July 2026Winchester 7 SE, USdaily high max37.8 C (100.0 F)0.6 C (1.1 F)1 year11 of 100 (Routine)
4 July 2026Winchester 7 SE, USdaily high max38.9 C (102.0 F)1.1 C (2.0 F)97 years42 of 100 (Notable)
3 July 2026Winchester 7 SE, USdaily high max38.3 C (100.9 F)0.5 C (0.9 F)60 years29 of 100 (Routine)
2 July 2026Winchester 7 SE, USdaily high max37.8 C (100.0 F)0.6 C (1.1 F)84 years36 of 100 (Notable)
2 July 2026Winchester 7 SE, USdaily high min26.1 C (79.0 F)2.2 C (4.0 F)56 years32 of 100 (Routine)
12 June 2026Winchester 7 SE, USdaily high max (Tie)35.0 C (95.0 F)tie92 years9 of 100 (Routine)
24 May 2026Winchester 7 SE, USdaily low max11.1 C (52.0 F)2.8 C (5.0 F)23 years21 of 100 (Routine)
23 May 2026Winchester 7 SE, USdaily rain31.2 mm (1.2 in)1.7 mm (0.07 in)13 years15 of 100 (Routine)
20 May 2026Winchester 7 SE, USdaily high max36.1 C (97.0 F)0.5 C (0.9 F)29 years18 of 100 (Routine)
19 May 2026Winchester 7 SE, USdaily high max35.0 C (95.0 F)1.1 C (2.0 F)64 years31 of 100 (Routine)
22 April 2026Winchester 7 SE, USdaily low min-3.9 C (25.0 F)1.7 C (3.1 F)76 years35 of 100 (Notable)
21 April 2026Winchester 7 SE, USdaily low min-3.9 C (25.0 F)0.6 C (1.1 F)8 years13 of 100 (Routine)
17 April 2026Winchester 7 SE, USdaily high max (Tie)32.8 C (91.0 F)tie24 years4 of 100 (Routine)
16 April 2026Winchester 7 SE, USdaily high max32.2 C (90.0 F)1.1 C (2.0 F)49 years25 of 100 (Routine)
15 April 2026Winchester 7 SE, USdaily high max (Tie)32.8 C (91.0 F)tie8 years3 of 100 (Routine)
23 March 2026Winchester 7 SE, USdaily high max31.1 C (88.0 F)1.7 C (3.1 F)96 years41 of 100 (Notable)
12 March 2026Winchester 7 SE, USdaily high max30.0 C (86.0 F)4.4 C (7.9 F)4 years17 of 100 (Routine)
11 March 2026Winchester 7 SE, USdaily high max28.9 C (84.0 F)3.9 C (7.0 F)100 years45 of 100 (Notable)
8 February 2026Winchester 7 SE, USdaily low max-8.3 C (17.1 F)2.2 C (4.0 F)75 years35 of 100 (Notable)

Climate Trend

91 complete years, 1913 to 2024
Annual mean temperature at Winchester 7 SE as warming stripes, 1913 to 2024 One stripe for each of 91 complete years at Winchester 7 SE, 1913 to 2024. Blue stripes are years cooler than the station's own mean of 12.4 C (54.4 F); red stripes are warmer. The coolest year was 1996, at 10.8 C (51.4 F), and the warmest was 1953, at 14.0 C (57.2 F). The strongest colour marks a difference of 1.7 C (3.1 F). 1913: 13.7 C, +1.2 C from the station mean1914: 12.2 C, -0.2 C from the station mean1915: 12.5 C, +0.1 C from the station mean1916: 12.6 C, +0.2 C from the station mean1917: 11.2 C, -1.2 C from the station mean1919: 12.8 C, +0.4 C from the station mean1920: 11.9 C, -0.6 C from the station mean1921: 13.9 C, +1.4 C from the station mean1922: 13.0 C, +0.5 C from the station mean1924: 12.6 C, +0.1 C from the station mean1925: 13.7 C, +1.3 C from the station mean1926: 12.6 C, +0.2 C from the station mean1927: 13.6 C, +1.2 C from the station mean1928: 13.2 C, +0.7 C from the station mean1929: 13.1 C, +0.7 C from the station mean1930: 13.4 C, +0.9 C from the station mean1932: 13.3 C, +0.8 C from the station mean1933: 13.1 C, +0.7 C from the station mean1934: 12.5 C, +0.1 C from the station mean1935: 12.2 C, -0.2 C from the station mean1936: 12.4 C, 0.0 C from the station mean1937: 12.7 C, +0.2 C from the station mean1938: 13.5 C, +1.0 C from the station mean1939: 13.5 C, +1.0 C from the station mean1940: 11.7 C, -0.7 C from the station mean1941: 13.4 C, +0.9 C from the station mean1942: 13.0 C, +0.6 C from the station mean1943: 13.0 C, +0.6 C from the station mean1944: 13.1 C, +0.7 C from the station mean1945: 13.0 C, +0.6 C from the station mean1946: 13.5 C, +1.1 C from the station mean1947: 12.6 C, +0.1 C from the station mean1949: 13.7 C, +1.3 C from the station mean1950: 12.4 C, 0.0 C from the station mean1951: 12.8 C, +0.4 C from the station mean1952: 13.2 C, +0.8 C from the station mean1953: 14.0 C, +1.6 C from the station mean1954: 13.1 C, +0.7 C from the station mean1955: 12.8 C, +0.4 C from the station mean1956: 12.8 C, +0.4 C from the station mean1957: 13.3 C, +0.9 C from the station mean1958: 11.7 C, -0.7 C from the station mean1959: 13.4 C, +1.0 C from the station mean1960: 12.0 C, -0.5 C from the station mean1961: 12.7 C, +0.3 C from the station mean1962: 12.0 C, -0.4 C from the station mean1963: 12.1 C, -0.3 C from the station mean1964: 12.5 C, +0.1 C from the station mean1965: 12.7 C, +0.3 C from the station mean1966: 12.0 C, -0.5 C from the station mean1967: 11.6 C, -0.9 C from the station mean1968: 12.0 C, -0.4 C from the station mean1969: 11.9 C, -0.5 C from the station mean1970: 12.4 C, 0.0 C from the station mean1971: 12.5 C, +0.1 C from the station mean1972: 12.1 C, -0.3 C from the station mean1973: 13.0 C, +0.6 C from the station mean1974: 12.6 C, +0.2 C from the station mean1975: 12.6 C, +0.1 C from the station mean1976: 11.9 C, -0.5 C from the station mean1977: 12.5 C, 0.0 C from the station mean1978: 11.3 C, -1.1 C from the station mean1979: 11.1 C, -1.3 C from the station mean1981: 11.0 C, -1.5 C from the station mean1983: 11.1 C, -1.3 C from the station mean1984: 11.2 C, -1.3 C from the station mean1985: 11.4 C, -1.0 C from the station mean1986: 11.3 C, -1.1 C from the station mean1990: 12.5 C, 0.0 C from the station mean1994: 11.4 C, -1.1 C from the station mean1995: 11.3 C, -1.1 C from the station mean1996: 10.8 C, -1.7 C from the station mean1997: 11.2 C, -1.2 C from the station mean1999: 11.9 C, -0.5 C from the station mean2000: 11.3 C, -1.1 C from the station mean2002: 12.1 C, -0.3 C from the station mean2003: 11.1 C, -1.3 C from the station mean2004: 11.8 C, -0.7 C from the station mean2005: 11.7 C, -0.7 C from the station mean2006: 12.3 C, -0.2 C from the station mean2007: 12.5 C, +0.1 C from the station mean2011: 12.4 C, 0.0 C from the station mean2012: 12.7 C, +0.3 C from the station mean2016: 12.4 C, 0.0 C from the station mean2017: 12.5 C, +0.1 C from the station mean2018: 12.0 C, -0.4 C from the station mean2019: 12.2 C, -0.3 C from the station mean2020: 12.7 C, +0.3 C from the station mean2021: 12.5 C, +0.1 C from the station mean2022: 11.6 C, -0.8 C from the station mean2024: 13.0 C, +0.6 C from the station mean191319201930194019501960197019801990200020102020
One stripe for each of 91 complete years at Winchester 7 SE, 1913 to 2024. Blue stripes are years cooler than the station's own mean of 12.4 C (54.4 F); red stripes are warmer. The coolest year was 1996, at 10.8 C (51.4 F), and the warmest was 1953, at 14.0 C (57.2 F). The strongest colour marks a difference of 1.7 C (3.1 F).
Annual mean temperature at Winchester 7 SE as warming stripes, 1913 to 2024
YearAnnual mean temperatureDifference from the station mean
191313.7 C+1.22 C
191412.2 C-0.22 C
191512.5 C+0.10 C
191612.6 C+0.15 C
191711.2 C-1.19 C
191912.8 C+0.37 C
192011.9 C-0.56 C
192113.9 C+1.42 C
192213.0 C+0.54 C
192412.6 C+0.12 C
192513.7 C+1.28 C
192612.6 C+0.18 C
192713.6 C+1.15 C
192813.2 C+0.74 C
192913.1 C+0.70 C
193013.4 C+0.92 C
193213.3 C+0.82 C
193313.1 C+0.69 C
193412.5 C+0.11 C
193512.2 C-0.24 C
193612.4 C-0.05 C
193712.7 C+0.23 C
193813.5 C+1.04 C
193913.5 C+1.03 C
194011.7 C-0.72 C
194113.4 C+0.94 C
194213.0 C+0.61 C
194313.0 C+0.61 C
194413.1 C+0.68 C
194513.0 C+0.55 C
194613.5 C+1.09 C
194712.6 C+0.12 C
194913.7 C+1.28 C
195012.4 C-0.01 C
195112.8 C+0.38 C
195213.2 C+0.77 C
195314.0 C+1.59 C
195413.1 C+0.69 C
195512.8 C+0.41 C
195612.8 C+0.40 C
195713.3 C+0.87 C
195811.7 C-0.74 C
195913.4 C+0.96 C
196012.0 C-0.47 C
196112.7 C+0.26 C
196212.0 C-0.39 C
196312.1 C-0.30 C
196412.5 C+0.05 C
196512.7 C+0.29 C
196612.0 C-0.46 C
196711.6 C-0.86 C
196812.0 C-0.42 C
196911.9 C-0.51 C
197012.4 C+0.01 C
197112.5 C+0.11 C
197212.1 C-0.33 C
197313.0 C+0.59 C
197412.6 C+0.19 C
197512.6 C+0.14 C
197611.9 C-0.49 C
197712.5 C+0.02 C
197811.3 C-1.10 C
197911.1 C-1.29 C
198111.0 C-1.48 C
198311.1 C-1.34 C
198411.2 C-1.26 C
198511.4 C-1.04 C
198611.3 C-1.10 C
199012.5 C+0.02 C
199411.4 C-1.08 C
199511.3 C-1.12 C
199610.8 C-1.66 C
199711.2 C-1.21 C
199911.9 C-0.50 C
200011.3 C-1.15 C
200212.1 C-0.35 C
200311.1 C-1.32 C
200411.8 C-0.66 C
200511.7 C-0.71 C
200612.3 C-0.17 C
200712.5 C+0.05 C
201112.4 C-0.04 C
201212.7 C+0.25 C
201612.4 C-0.04 C
201712.5 C+0.09 C
201812.0 C-0.45 C
201912.2 C-0.28 C
202012.7 C+0.25 C
202112.5 C+0.09 C
202211.6 C-0.79 C
202413.0 C+0.56 C

The annual mean temperature here has fallen by 0.1 C (0.1 to 0.2) per decade over 1913 to 2024. In Fahrenheit: 0.2 F (0.1 to 0.3) per decade. The slope is a straight line fitted to 91 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Winchester 7 SE
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature-0.1 C (-0.2 to -0.1) per decade-0.2 F (-0.3 to -0.1) per decade1913 to 202491Fall
Mean daily maximum-0.04 C (-0.10 to 0.02) per decade-0.07 F (-0.17 to 0.04) per decade1913 to 202491Not clearly different from zero
Mean daily minimum-0.2 C (-0.2 to -0.1) per decade-0.3 F (-0.4 to -0.3) per decade1913 to 202491Fall

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

1912 to 2026
Yearly extremes at Winchester 7 SE: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)41.7 C (107.1 F)193036.7 C (98.1 F)115
Coldest night (TNn)-27.8 C (-18.0 F)1994-16.7 C (1.9 F)115
Wettest day (Rx1day)165.4 mm (6.5 in)194260.2 mm (2.4 in)115
Wettest five days (Rx5day)340.7 mm (13.4 in)194292.6 mm (3.6 in)115
Longest dry spell (CDD)40 days199518 days115

Hottest day (TXx)

Hottest day (TXx) at Winchester 7 SE by year The hottest day of the year at Winchester 7 SE, 1912 to 2026. The record is 41.7 C (107.1 F) in 1930, marked on the chart; the median year is 36.7 C (98.1 F). 32.53537.54042.5192019401960198020002020Record: 41.7 C (107.1 F) in 1930
The hottest day of the year at Winchester 7 SE, 1912 to 2026. The record is 41.7 C (107.1 F) in 1930, marked on the chart; the median year is 36.7 C (98.1 F).
Hottest day (TXx) at Winchester 7 SE by year
YearHottest day (TXx)
191235.0 C (95.0 F)
191336.1 C (97.0 F)
191436.1 C (97.0 F)
191535.6 C (96.1 F)
191635.6 C (96.1 F)
191737.2 C (99.0 F)
191841.1 C (106.0 F)
191938.3 C (100.9 F)
192037.2 C (99.0 F)
192134.4 C (93.9 F)
192235.0 C (95.0 F)
192335.6 C (96.1 F)
192439.4 C (102.9 F)
192538.9 C (102.0 F)
192641.1 C (106.0 F)
192740.0 C (104.0 F)
192837.8 C (100.0 F)
192937.2 C (99.0 F)
193041.7 C (107.1 F)
193137.2 C (99.0 F)
193238.9 C (102.0 F)
193336.7 C (98.1 F)
193440.0 C (104.0 F)
193536.7 C (98.1 F)
193640.0 C (104.0 F)
193737.8 C (100.0 F)
193836.7 C (98.1 F)
193935.6 C (96.1 F)
194037.8 C (100.0 F)
194137.2 C (99.0 F)
194237.8 C (100.0 F)
194337.8 C (100.0 F)
194438.9 C (102.0 F)
194537.2 C (99.0 F)
194636.1 C (97.0 F)
194736.1 C (97.0 F)
194836.1 C (97.0 F)
194935.6 C (96.1 F)
195033.3 C (91.9 F)
195135.0 C (95.0 F)
195238.3 C (100.9 F)
195339.4 C (102.9 F)
195439.4 C (102.9 F)
195537.8 C (100.0 F)
195636.1 C (97.0 F)
195737.8 C (100.0 F)
195833.9 C (93.0 F)
195937.8 C (100.0 F)
196034.4 C (93.9 F)
196135.6 C (96.1 F)
196237.2 C (99.0 F)
196335.0 C (95.0 F)
196436.7 C (98.1 F)
196536.7 C (98.1 F)
196637.8 C (100.0 F)
196735.0 C (95.0 F)
196836.7 C (98.1 F)
196935.0 C (95.0 F)
197035.0 C (95.0 F)
197134.4 C (93.9 F)
197235.0 C (95.0 F)
197335.0 C (95.0 F)
197433.3 C (91.9 F)
197534.4 C (93.9 F)
197633.9 C (93.0 F)
197737.8 C (100.0 F)
197835.0 C (95.0 F)
197934.4 C (93.9 F)
198038.3 C (100.9 F)
198135.0 C (95.0 F)
198233.9 C (93.0 F)
198339.4 C (102.9 F)
198436.1 C (97.0 F)
198536.1 C (97.0 F)
198637.2 C (99.0 F)
198737.8 C (100.0 F)
198841.7 C (107.1 F)
198935.0 C (95.0 F)
199037.2 C (99.0 F)
199138.3 C (100.9 F)
199237.2 C (99.0 F)
199337.2 C (99.0 F)
199436.1 C (97.0 F)
199536.7 C (98.1 F)
199635.6 C (96.1 F)
199738.3 C (100.9 F)
199836.7 C (98.1 F)
199937.8 C (100.0 F)
200033.3 C (91.9 F)
200135.0 C (95.0 F)
200236.7 C (98.1 F)
200333.3 C (91.9 F)
200433.9 C (93.0 F)
200535.6 C (96.1 F)
200637.2 C (99.0 F)
200738.3 C (100.9 F)
200837.2 C (99.0 F)
200933.9 C (93.0 F)
201038.3 C (100.9 F)
201139.4 C (102.9 F)
201239.4 C (102.9 F)
201336.1 C (97.0 F)
201437.8 C (100.0 F)
201534.4 C (93.9 F)
201636.1 C (97.0 F)
201735.6 C (96.1 F)
201835.0 C (95.0 F)
201937.8 C (100.0 F)
202037.8 C (100.0 F)
202137.8 C (100.0 F)
202235.0 C (95.0 F)
202337.8 C (100.0 F)
202440.0 C (104.0 F)
202537.8 C (100.0 F)
202638.9 C (102.0 F)

Coldest night (TNn)

Coldest night (TNn) at Winchester 7 SE by year The coldest night of the year at Winchester 7 SE, 1912 to 2026. The record is -27.8 C (-18.0 F) in 1994, marked on the chart; the median year is -16.7 C (1.9 F). -30-20-100192019401960198020002020Record: -27.8 C (-18.0 F) in 1994
The coldest night of the year at Winchester 7 SE, 1912 to 2026. The record is -27.8 C (-18.0 F) in 1994, marked on the chart; the median year is -16.7 C (1.9 F).
Coldest night (TNn) at Winchester 7 SE by year
YearColdest night (TNn)
1912-12.2 C (10.0 F)
1913-12.2 C (10.0 F)
1914-20.6 C (-5.1 F)
1915-11.7 C (10.9 F)
1916-16.7 C (1.9 F)
1917-20.6 C (-5.1 F)
1918-20.0 C (-4.0 F)
1919-16.7 C (1.9 F)
1920-15.6 C (3.9 F)
1921-12.8 C (9.0 F)
1922-16.7 C (1.9 F)
1923-13.9 C (7.0 F)
1924-16.1 C (3.0 F)
1925-20.6 C (-5.1 F)
1926-16.7 C (1.9 F)
1927-14.4 C (6.1 F)
1928-13.3 C (8.1 F)
1929-16.1 C (3.0 F)
1930-17.2 C (1.0 F)
1931-12.2 C (10.0 F)
1932-14.4 C (6.1 F)
1933-16.1 C (3.0 F)
1934-21.7 C (-7.1 F)
1935-22.8 C (-9.0 F)
1936-21.7 C (-7.1 F)
1937-11.1 C (12.0 F)
1938-13.9 C (7.0 F)
1939-12.2 C (10.0 F)
1940-17.2 C (1.0 F)
1941-12.2 C (10.0 F)
1942-19.4 C (-2.9 F)
1943-16.7 C (1.9 F)
1944-12.8 C (9.0 F)
1945-13.3 C (8.1 F)
1946-15.0 C (5.0 F)
1947-16.1 C (3.0 F)
1948-13.3 C (8.1 F)
1949-10.0 C (14.0 F)
1950-15.6 C (3.9 F)
1951-20.6 C (-5.1 F)
1952-13.3 C (8.1 F)
1953-10.6 C (12.9 F)
1954-13.9 C (7.0 F)
1955-16.7 C (1.9 F)
1956-12.2 C (10.0 F)
1957-17.2 C (1.0 F)
1958-17.8 C (0.0 F)
1959-18.9 C (-2.0 F)
1960-19.4 C (-2.9 F)
1961-18.9 C (-2.0 F)
1962-16.1 C (3.0 F)
1963-20.6 C (-5.1 F)
1964-17.8 C (0.0 F)
1965-16.1 C (3.0 F)
1966-15.0 C (5.0 F)
1967-20.0 C (-4.0 F)
1968-23.3 C (-9.9 F)
1969-12.2 C (10.0 F)
1970-18.9 C (-2.0 F)
1971-14.4 C (6.1 F)
1972-20.0 C (-4.0 F)
1973-15.0 C (5.0 F)
1974-14.4 C (6.1 F)
1975-17.2 C (1.0 F)
1976-15.6 C (3.9 F)
1977-20.6 C (-5.1 F)
1978-17.2 C (1.0 F)
1979-20.6 C (-5.1 F)
1980-17.8 C (0.0 F)
1981-18.9 C (-2.0 F)
1982-23.9 C (-11.0 F)
1983-21.1 C (-6.0 F)
1984-26.1 C (-15.0 F)
1985-23.3 C (-9.9 F)
1986-16.1 C (3.0 F)
1987-21.1 C (-6.0 F)
1988-21.1 C (-6.0 F)
1989-21.1 C (-6.0 F)
1990-14.4 C (6.1 F)
1991-15.6 C (3.9 F)
1992-16.1 C (3.0 F)
1993-21.1 C (-6.0 F)
1994-27.8 C (-18.0 F)
1995-16.7 C (1.9 F)
1996-26.7 C (-16.1 F)
1997-18.3 C (-0.9 F)
1998-18.3 C (-0.9 F)
1999-16.7 C (1.9 F)
2000-17.2 C (1.0 F)
2001-15.0 C (5.0 F)
2002-18.3 C (-0.9 F)
2003-18.3 C (-0.9 F)
2004-17.8 C (0.0 F)
2005-17.2 C (1.0 F)
2006-14.4 C (6.1 F)
2007-17.8 C (0.0 F)
2008-15.0 C (5.0 F)
2009-19.4 C (-2.9 F)
2010-1.1 C (30.0 F)
2011-16.7 C (1.9 F)
2012-13.3 C (8.1 F)
2013-13.3 C (8.1 F)
2014-22.2 C (-8.0 F)
2015-6.7 C (19.9 F)
2016-18.9 C (-2.0 F)
2017-14.4 C (6.1 F)
2018-20.0 C (-4.0 F)
2019-20.0 C (-4.0 F)
2020-12.8 C (9.0 F)
2021-14.4 C (6.1 F)
2022-21.1 C (-6.0 F)
2023-13.3 C (8.1 F)
2024-16.7 C (1.9 F)
2025-20.6 C (-5.1 F)
2026-18.9 C (-2.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Winchester 7 SE by year The wettest day of the year at Winchester 7 SE, 1912 to 2026. The record is 165.4 mm (6.5 in) in 1942, marked on the chart; the median year is 60.2 mm (2.4 in). 050100150200192019401960198020002020Record: 165.4 mm (6.5 in) in 1942
The wettest day of the year at Winchester 7 SE, 1912 to 2026. The record is 165.4 mm (6.5 in) in 1942, marked on the chart; the median year is 60.2 mm (2.4 in).
Wettest day (Rx1day) at Winchester 7 SE by year
YearWettest day (Rx1day)
191251.8 mm (2.0 in)
191363.5 mm (2.5 in)
191450.8 mm (2.0 in)
191583.8 mm (3.3 in)
191640.9 mm (1.6 in)
191753.3 mm (2.1 in)
191843.2 mm (1.7 in)
191930.5 mm (1.2 in)
192050.8 mm (2.0 in)
192141.9 mm (1.6 in)
192273.7 mm (2.9 in)
192350.8 mm (2.0 in)
192453.3 mm (2.1 in)
192538.1 mm (1.5 in)
192654.6 mm (2.1 in)
192753.3 mm (2.1 in)
192844.5 mm (1.8 in)
1929113.5 mm (4.5 in)
193043.9 mm (1.7 in)
193166.0 mm (2.6 in)
193248.3 mm (1.9 in)
193372.1 mm (2.8 in)
193484.1 mm (3.3 in)
193542.4 mm (1.7 in)
193681.3 mm (3.2 in)
1937112.5 mm (4.4 in)
193857.9 mm (2.3 in)
193972.9 mm (2.9 in)
194050.8 mm (2.0 in)
194141.4 mm (1.6 in)
1942165.4 mm (6.5 in)
194358.4 mm (2.3 in)
194455.1 mm (2.2 in)
194575.7 mm (3.0 in)
194660.2 mm (2.4 in)
194753.1 mm (2.1 in)
194852.6 mm (2.1 in)
194965.0 mm (2.6 in)
195075.2 mm (3.0 in)
195145.0 mm (1.8 in)
195265.8 mm (2.6 in)
195348.3 mm (1.9 in)
195494.5 mm (3.7 in)
1955105.4 mm (4.1 in)
195639.6 mm (1.6 in)
195787.4 mm (3.4 in)
195846.5 mm (1.8 in)
195957.4 mm (2.3 in)
196056.6 mm (2.2 in)
196138.1 mm (1.5 in)
196258.4 mm (2.3 in)
196374.7 mm (2.9 in)
196465.3 mm (2.6 in)
196550.0 mm (2.0 in)
196672.1 mm (2.8 in)
196749.0 mm (1.9 in)
196852.3 mm (2.1 in)
196959.9 mm (2.4 in)
197070.4 mm (2.8 in)
197175.9 mm (3.0 in)
1972123.7 mm (4.9 in)
197388.4 mm (3.5 in)
197469.1 mm (2.7 in)
1975119.9 mm (4.7 in)
197677.7 mm (3.1 in)
197731.8 mm (1.3 in)
197861.2 mm (2.4 in)
197962.2 mm (2.4 in)
198051.1 mm (2.0 in)
198150.3 mm (2.0 in)
198250.8 mm (2.0 in)
198355.4 mm (2.2 in)
198489.2 mm (3.5 in)
198538.6 mm (1.5 in)
198633.0 mm (1.3 in)
198769.9 mm (2.8 in)
198870.9 mm (2.8 in)
198933.0 mm (1.3 in)
199074.9 mm (2.9 in)
199134.5 mm (1.4 in)
1992107.7 mm (4.2 in)
199387.9 mm (3.5 in)
1994110.0 mm (4.3 in)
199590.2 mm (3.6 in)
199688.1 mm (3.5 in)
199763.2 mm (2.5 in)
199855.9 mm (2.2 in)
199963.8 mm (2.5 in)
200051.8 mm (2.0 in)
200162.5 mm (2.5 in)
200251.3 mm (2.0 in)
200382.6 mm (3.3 in)
200489.4 mm (3.5 in)
200566.3 mm (2.6 in)
200694.5 mm (3.7 in)
200747.0 mm (1.9 in)
200855.4 mm (2.2 in)
200930.5 mm (1.2 in)
201068.6 mm (2.7 in)
201148.0 mm (1.9 in)
2012104.1 mm (4.1 in)
201357.2 mm (2.3 in)
201497.8 mm (3.9 in)
201545.7 mm (1.8 in)
201682.0 mm (3.2 in)
201771.1 mm (2.8 in)
201866.0 mm (2.6 in)
201952.1 mm (2.1 in)
202088.1 mm (3.5 in)
202182.6 mm (3.3 in)
202261.5 mm (2.4 in)
202349.0 mm (1.9 in)
202489.4 mm (3.5 in)
202583.8 mm (3.3 in)
202642.2 mm (1.7 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Winchester 7 SE by year The wettest five days of the year at Winchester 7 SE, 1912 to 2026. The record is 340.7 mm (13.4 in) in 1942, marked on the chart; the median year is 92.6 mm (3.6 in). 0100200300400192019401960198020002020Record: 340.7 mm (13.4 in) in 1942
The wettest five days of the year at Winchester 7 SE, 1912 to 2026. The record is 340.7 mm (13.4 in) in 1942, marked on the chart; the median year is 92.6 mm (3.6 in).
Wettest five days (Rx5day) at Winchester 7 SE by year
YearWettest five days (Rx5day)
191296.0 mm (3.8 in)
191381.3 mm (3.2 in)
191477.0 mm (3.0 in)
1915150.6 mm (5.9 in)
191679.5 mm (3.1 in)
191771.6 mm (2.8 in)
1918112.5 mm (4.4 in)
191950.1 mm (2.0 in)
192065.2 mm (2.6 in)
192170.8 mm (2.8 in)
192298.6 mm (3.9 in)
192361.5 mm (2.4 in)
1924165.3 mm (6.5 in)
192544.6 mm (1.8 in)
1926119.1 mm (4.7 in)
192782.3 mm (3.2 in)
192873.2 mm (2.9 in)
1929128.2 mm (5.0 in)
193056.6 mm (2.2 in)
193176.4 mm (3.0 in)
1932105.4 mm (4.1 in)
193378.1 mm (3.1 in)
1934111.5 mm (4.4 in)
1935100.6 mm (4.0 in)
1936138.2 mm (5.4 in)
1937183.5 mm (7.2 in)
193867.8 mm (2.7 in)
1939104.2 mm (4.1 in)
194082.3 mm (3.2 in)
194193.5 mm (3.7 in)
1942340.7 mm (13.4 in)
194373.4 mm (2.9 in)
194467.8 mm (2.7 in)
1945131.5 mm (5.2 in)
194672.5 mm (2.9 in)
194788.9 mm (3.5 in)
194879.1 mm (3.1 in)
194994.2 mm (3.7 in)
195080.5 mm (3.2 in)
195199.2 mm (3.9 in)
1952130.5 mm (5.1 in)
195363.0 mm (2.5 in)
1954104.0 mm (4.1 in)
1955165.1 mm (6.5 in)
195692.2 mm (3.6 in)
195791.0 mm (3.6 in)
195868.6 mm (2.7 in)
195979.6 mm (3.1 in)
196066.6 mm (2.6 in)
196164.3 mm (2.5 in)
196284.8 mm (3.3 in)
196395.3 mm (3.8 in)
196469.9 mm (2.8 in)
196558.4 mm (2.3 in)
1966140.7 mm (5.5 in)
196777.1 mm (3.0 in)
196890.7 mm (3.6 in)
196959.9 mm (2.4 in)
1970126.3 mm (5.0 in)
1971108.9 mm (4.3 in)
1972203.5 mm (8.0 in)
197391.9 mm (3.6 in)
197477.3 mm (3.0 in)
1975140.7 mm (5.5 in)
197691.2 mm (3.6 in)
197768.6 mm (2.7 in)
197896.0 mm (3.8 in)
197993.5 mm (3.7 in)
198087.5 mm (3.4 in)
198181.8 mm (3.2 in)
198283.5 mm (3.3 in)
198373.7 mm (2.9 in)
1984123.2 mm (4.9 in)
1985100.8 mm (4.0 in)
198653.8 mm (2.1 in)
1987150.9 mm (5.9 in)
198894.2 mm (3.7 in)
198963.0 mm (2.5 in)
1990122.9 mm (4.8 in)
199159.8 mm (2.4 in)
1992110.7 mm (4.4 in)
199389.7 mm (3.5 in)
1994122.7 mm (4.8 in)
1995106.2 mm (4.2 in)
1996120.6 mm (4.7 in)
1997107.7 mm (4.2 in)
199892.6 mm (3.6 in)
1999141.6 mm (5.6 in)
200059.7 mm (2.4 in)
200194.3 mm (3.7 in)
200268.6 mm (2.7 in)
2003109.8 mm (4.3 in)
200495.3 mm (3.8 in)
200599.0 mm (3.9 in)
2006131.6 mm (5.2 in)
200786.1 mm (3.4 in)
200880.1 mm (3.2 in)
200979.4 mm (3.1 in)
2010122.0 mm (4.8 in)
201198.3 mm (3.9 in)
2012131.3 mm (5.2 in)
2013134.2 mm (5.3 in)
2014106.7 mm (4.2 in)
201594.2 mm (3.7 in)
2016103.5 mm (4.1 in)
201774.9 mm (2.9 in)
2018159.8 mm (6.3 in)
201986.7 mm (3.4 in)
202095.7 mm (3.8 in)
202186.4 mm (3.4 in)
202293.5 mm (3.7 in)
202364.2 mm (2.5 in)
2024125.4 mm (4.9 in)
2025111.0 mm (4.4 in)
202681.5 mm (3.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Winchester 7 SE by year The longest dry spell of the year at Winchester 7 SE, 1912 to 2026. The record is 40 days in 1995, marked on the chart; the median year is 18 days. 010203040192019401960198020002020Record: 40 days in 1995
The longest dry spell of the year at Winchester 7 SE, 1912 to 2026. The record is 40 days in 1995, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Winchester 7 SE by year
YearLongest dry spell (CDD)
191226 days
191334 days
191429 days
191538 days
191612 days
191721 days
191814 days
191913 days
192026 days
192127 days
192225 days
192318 days
192427 days
192518 days
192610 days
192715 days
192817 days
192918 days
193037 days
193120 days
193223 days
193313 days
193418 days
193516 days
193617 days
193716 days
193813 days
193921 days
194016 days
194123 days
194217 days
194333 days
194425 days
194517 days
194614 days
194718 days
194810 days
194912 days
195017 days
195122 days
195229 days
195322 days
195424 days
195519 days
195616 days
195715 days
195825 days
195915 days
196020 days
196115 days
196219 days
196333 days
196419 days
196515 days
196621 days
196718 days
196828 days
196917 days
197016 days
197123 days
197211 days
197325 days
197423 days
197513 days
197615 days
197725 days
197816 days
197915 days
198014 days
198119 days
198215 days
198321 days
198423 days
198531 days
198621 days
198723 days
198820 days
198914 days
199021 days
199113 days
199217 days
199316 days
199420 days
199540 days
199612 days
199715 days
199819 days
199922 days
200022 days
200138 days
200219 days
200313 days
200417 days
200521 days
200636 days
200719 days
200816 days
200918 days
20109 days
201119 days
201213 days
201314 days
201412 days
201517 days
201614 days
201726 days
201812 days
201913 days
202015 days
202133 days
202213 days
202314 days
202427 days
202511 days
202620 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

91 years with a frost

Across 91 years with a frost, the median last spring frost at Winchester 7 SE falls on 18 April and the median first autumn frost on 19 October, which leaves a median of 181 days between them.

In 1978 to 2024 the median growing season was 169 days. That is 16 days fewer than in 1913 to 1945.

Fitted over all years, the growing season changes by -1.7 days per decade at this station.

Frost dates and growing season at Winchester 7 SE
MeasureMedian, all yearsEarliest period (1913 to 1945)Recent period (1978 to 2024)Recent against earliestFitted trend
Last spring frost18 April17 April28 April11 days later+1.2 days per decade
First autumn frost19 October19 October18 October1 day earlier-0.5 days per decade
Growing days181 days185 days169 days16 days fewer-1.7 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

96 years, 1913 to 2024

A day with at least 62.4 mm (2.5 in) of rain is expected about once in 2 years. A day with at least 139.9 mm (5.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Winchester 7 SE: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years62.4 mm (2.5 in)
5 years82.0 mm (3.2 in)
10 years95.5 mm (3.8 in)
25 years112.9 mm (4.4 in)
50 years126.3 mm (5.0 in)
100 years139.9 mm (5.5 in)Longer than the 96 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 96 years of values from 1913 to 2024.

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: 165.4 mm (6.5 in) in 1942; 123.7 mm (4.9 in) in 1972; 119.9 mm (4.7 in) in 1975.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Winchester 7 SE, at 1929. Each is measured against neighbouring stations.

  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1929 ran 0.5 C (0.8 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Winchester 7 SE, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
1929-0.4-0.8likely5

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

2003 to 2024 against 1961 to 1990

Over 2003 to 2024, Winchester 7 SE had a mean temperature of 12.2 C (54.0 F) and 1,052.4 mm (41.4 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Beltsville Plt STN 5 (United States, 104 km away), Upper Marlboro 3 NNW (United States, 123 km away) and Beltsville (United States, 106 km away).

Climate twins of Winchester 7 SE: stations whose 1961 to 1990 climate is closest to its 2003 to 2024 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
Beltsville Plt STN 5United States104 km (65 mi)12.1 C (53.8 F)1,045.9 mm (41.2 in)0.35
Upper Marlboro 3 NNWUnited States123 km (76 mi)12.3 C (54.1 F)1,069.1 mm (42.1 in)0.39
BeltsvilleUnited States106 km (66 mi)12.1 C (53.7 F)1,034.7 mm (40.7 in)0.40

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 Winchester 7 SE standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Winchester 7 SE 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

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