Built 2026-10-17 (17 October 2026)

Trenton Weather Records (USC00238444)

Record envelope, standing records and threshold days for Trenton (USC00238444), Missouri, United States, with 132 years of record.

Key Facts for Trenton

  • Trenton (USC00238444) is a weather station in Missouri, United States at 40.08 latitude and -93.61 longitude, 255 m (837 ft) above sea level.
  • The station reports from 1895 to 2026, 132 years of record.
  • 1,464 records set at Trenton still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Trenton tied a daily record high minimum temperature of 23.3 C (73.9 F) on 19 September 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

  • Location: Missouri, United States, 40.08 latitude, -93.61 longitude.
  • Elevation: 255 m (837 ft).
  • Period of record: 1895 to 2026, 132 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

11 days at or beyond a record
Daily record high and record low at Trenton, with 2026 drawn through them The band shows the record high and record low for each calendar day at Trenton. The lines show the 2026 daily maximum and minimum. 11 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 Trenton. The lines show the 2026 daily maximum and minimum. 11 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Trenton, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan20.6 C (69.1 F)-32.2 C (-26.0 F)19.4 C (66.9 F)-20.6 C (-5.1 F)
Feb27.8 C (82.0 F)-31.7 C (-25.1 F)23.3 C (73.9 F)-17.2 C (1.0 F)
Mar33.3 C (91.9 F)-26.1 C (-15.0 F)33.3 C (91.9 F)-12.8 C (9.0 F)
Apr34.4 C (93.9 F)-12.8 C (9.0 F)30.6 C (87.1 F)1.7 C (35.1 F)
May40.6 C (105.1 F)-5.6 C (21.9 F)31.1 C (88.0 F)1.7 C (35.1 F)
Jun41.7 C (107.1 F)5.6 C (42.1 F)32.8 C (91.0 F)12.8 C (55.0 F)
Jul45.6 C (114.1 F)7.8 C (46.0 F)37.8 C (100.0 F)17.2 C (63.0 F)
Aug45.0 C (113.0 F)5.6 C (42.1 F)35.0 C (95.0 F)15.6 C (60.1 F)
Sep41.1 C (106.0 F)-2.8 C (27.0 F)37.8 C (100.0 F)13.3 C (55.9 F)
Oct36.7 C (98.1 F)-16.1 C (3.0 F)31.7 C (89.1 F)8.3 C (46.9 F)
Nov28.9 C (84.0 F)-21.1 C (-6.0 F)n/an/a
Dec23.3 C (73.9 F)-31.1 C (-24.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Trenton by the year they were set 1,464 records at Trenton still stand. 1936 holds the most, with 61. 0204060801895: 71896: 111897: 121898: 21899: 161900: 81901: 151902: 151903: 51904: 101905: 141906: 121907: 71908: 61909: 131910: 131911: 141912: 111913: 191914: 111915: 121916: 81917: 121918: 101919: 41920: 41921: 41923: 91924: 141925: 191926: 41927: 131928: 131929: 121930: 281931: 121932: 161933: 171934: 451935: 81936: 611937: 161938: 221939: 271940: 121941: 101942: 151943: 131944: 131945: 111946: 141947: 111948: 71949: 121950: 141951: 141952: 161953: 131954: 181955: 41956: 161957: 71958: 141959: 111960: 91961: 11962: 71963: 121964: 91965: 171966: 181967: 131968: 41969: 41970: 111971: 71972: 121973: 71974: 191975: 61976: 221977: 101978: 101979: 111980: 81981: 101982: 91983: 211984: 121985: 111986: 71987: 61998: 121999: 72000: 152001: 102002: 82003: 82004: 112005: 32006: 112007: 52008: 52009: 142010: 42011: 42012: 282013: 162014: 182015: 102016: 52017: 182018: 252019: 132020: 92021: 102022: 82023: 52024: 112025: 62026: 161895190819211935194819611974198720102023
1,464 records at Trenton still stand. 1936 holds the most, with 61.
Standing records at Trenton by the year they were set
Year setStanding records
18957
189611
189712
18982
189916
19008
190115
190215
19035
190410
190514
190612
19077
19086
190913
191013
191114
191211
191319
191411
191512
19168
191712
191810
19194
19204
19214
19239
192414
192519
19264
192713
192813
192912
193028
193112
193216
193317
193445
19358
193661
193716
193822
193927
194012
194110
194215
194313
194413
194511
194614
194711
19487
194912
195014
195114
195216
195313
195418
19554
195616
19577
195814
195911
19609
19611
19627
196312
19649
196517
196618
196713
19684
19694
197011
19717
197212
19737
197419
19756
197622
197710
197810
197911
19808
198110
19829
198321
198412
198511
19867
19876
199812
19997
200015
200110
20028
20038
200411
20053
200611
20075
20085
200914
20104
20114
201228
201316
201418
201510
20165
201718
201825
201913
20209
202110
20228
20235
202411
20256
202616

All-Time Record Progression

10 new records
When Trenton set new all-time records 10 all-time records were set at Trenton between 22 January 1930 and 14 January 1979. Each dot is a new record. Record low minimum temperatureRecord high maximum temperatureRecord snow depth22 January 1930: Record low minimum temperature -32.2 C (-26.0 F)26 July 1930: Record high maximum temperature 41.1 C (106.0 F)27 July 1930: Record high maximum temperature 42.8 C (109.0 F)3 August 1930: Record high maximum temperature 43.3 C (109.9 F)13 July 1934: Record high maximum temperature 43.9 C (111.0 F)20 July 1934: Record high maximum temperature 45.0 C (113.0 F)15 July 1936: Record high maximum temperature 45.6 C (114.1 F)12 January 1979: Record snow depth 38.1 cm (15.0 in)13 January 1979: Record snow depth 63.5 cm (25.0 in)14 January 1979: Record snow depth 73.7 cm (29.0 in)193019401950196019701980
10 all-time records were set at Trenton between 22 January 1930 and 14 January 1979. Each dot is a new record.
When Trenton set new all-time records
DateKindDetail
1930-01-22Record low minimum temperatureRecord low minimum temperature -32.2 C (-26.0 F)
1930-07-26Record high maximum temperatureRecord high maximum temperature 41.1 C (106.0 F)
1930-07-27Record high maximum temperatureRecord high maximum temperature 42.8 C (109.0 F)
1930-08-03Record high maximum temperatureRecord high maximum temperature 43.3 C (109.9 F)
1934-07-13Record high maximum temperatureRecord high maximum temperature 43.9 C (111.0 F)
1934-07-20Record high maximum temperatureRecord high maximum temperature 45.0 C (113.0 F)
1936-07-15Record high maximum temperatureRecord high maximum temperature 45.6 C (114.1 F)
1979-01-12Record snow depthRecord snow depth 38.1 cm (15.0 in)
1979-01-13Record snow depthRecord snow depth 63.5 cm (25.0 in)
1979-01-14Record snow depthRecord snow depth 73.7 cm (29.0 in)

Wettest Day of Each Month

Sep: 169.2 mm (6.7 in)
Record daily precipitation for each month at Trenton The wettest day on record for each calendar month at Trenton. The most was 169.2 mm (6.7 in) on 7 September 1914. 050100150200 Jan: 72.4 mm (2.9 in), 13 January 1911 Jan Feb: 101.6 mm (4.0 in), 20 February 1913 Feb Mar: 72.4 mm (2.9 in), 24 March 1920 Mar Apr: 97.0 mm (3.8 in), 15 April 1921 Apr May: 114.3 mm (4.5 in), 3 May 1919 May Jun: 133.4 mm (5.3 in), 25 June 2008 Jun Jul: 160.0 mm (6.3 in), 13 July 2017 Jul Aug: 128.0 mm (5.0 in), 2 August 1939 Aug Sep: 169.2 mm (6.7 in), 7 September 1914 Sep Oct: 127.5 mm (5.0 in), 4 October 1998 Oct Nov: 74.9 mm (2.9 in), 11 November 1922 Nov Dec: 78.2 mm (3.1 in), 26 December 1942 Dec
The wettest day on record for each calendar month at Trenton. The most was 169.2 mm (6.7 in) on 7 September 1914.
Record daily precipitation for each month at Trenton
MonthRecord daily precipitation (mm)Date
Jan72.4 mm (2.9 in)13 January 1911
Feb101.6 mm (4.0 in)20 February 1913
Mar72.4 mm (2.9 in)24 March 1920
Apr97.0 mm (3.8 in)15 April 1921
May114.3 mm (4.5 in)3 May 1919
Jun133.4 mm (5.3 in)25 June 2008
Jul160.0 mm (6.3 in)13 July 2017
Aug128.0 mm (5.0 in)2 August 1939
Sep169.2 mm (6.7 in)7 September 1914
Oct127.5 mm (5.0 in)4 October 1998
Nov74.9 mm (2.9 in)11 November 1922
Dec78.2 mm (3.1 in)26 December 1942

Period of Record Coverage

1895 to 2026
Days with data per year at Trenton 123 years of record at Trenton, 1895 to 2026. 11 years have data for under 90 percent of days and are left out of rankings: 1895, 1898, 1899, 1956, 1961, 1971, 1986, 1987 and others. 1895: 103 of 365 days1896: 332 of 366 days1897: 330 of 365 days1898: 241 of 365 days1899: 271 of 365 days1900: 362 of 365 days1901: 357 of 365 days1902: 365 of 365 days1903: 364 of 365 days1904: 366 of 366 days1905: 361 of 365 days1906: 364 of 365 days1907: 363 of 365 days1908: 365 of 366 days1909: 363 of 365 days1910: 331 of 365 days1911: 362 of 365 days1912: 362 of 366 days1913: 361 of 365 days1914: 360 of 365 days1915: 364 of 365 days1916: 366 of 366 days1917: 364 of 365 days1918: 362 of 365 days1919: 365 of 365 days1920: 365 of 366 days1921: 364 of 365 days1922: 363 of 365 days1923: 365 of 365 days1924: 355 of 366 days1925: 365 of 365 days1926: 363 of 365 days1927: 362 of 365 days1928: 366 of 366 days1929: 365 of 365 days1930: 363 of 365 days1931: 365 of 365 days1932: 366 of 366 days1933: 363 of 365 days1934: 365 of 365 days1935: 365 of 365 days1936: 366 of 366 days1937: 365 of 365 days1938: 364 of 365 days1939: 365 of 365 days1940: 366 of 366 days1941: 365 of 365 days1942: 365 of 365 days1943: 365 of 365 days1944: 365 of 366 days1945: 365 of 365 days1946: 365 of 365 days1947: 365 of 365 days1948: 365 of 366 days1949: 364 of 365 days1950: 365 of 365 days1951: 365 of 365 days1952: 366 of 366 days1953: 362 of 365 days1954: 364 of 365 days1955: 333 of 365 days1956: 303 of 366 days1957: 363 of 365 days1958: 360 of 365 days1959: 356 of 365 days1960: 363 of 366 days1961: 298 of 365 days1962: 357 of 365 days1963: 363 of 365 days1964: 355 of 366 days1965: 329 of 365 days1966: 363 of 365 days1967: 364 of 365 days1968: 352 of 366 days1969: 345 of 365 days1970: 329 of 365 days1971: 301 of 365 days1972: 361 of 366 days1973: 353 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 365 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 362 of 365 days1984: 363 of 366 days1985: 364 of 365 days1986: 233 of 365 days1987: 132 of 365 days1997: 31 of 365 days1998: 363 of 365 days1999: 359 of 365 days2000: 364 of 366 days2001: 363 of 365 days2002: 359 of 365 days2003: 356 of 365 days2004: 361 of 366 days2005: 363 of 365 days2006: 362 of 365 days2007: 363 of 365 days2008: 357 of 366 days2009: 365 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 363 of 366 days2013: 365 of 365 days2014: 353 of 365 days2015: 355 of 365 days2016: 362 of 366 days2017: 360 of 365 days2018: 362 of 365 days2019: 325 of 365 days2020: 349 of 366 days2021: 360 of 365 days2022: 358 of 365 days2023: 351 of 365 days2024: 352 of 366 days2025: 358 of 365 days2026: 277 of 365 days1900192019401960198020002020
123 years of record at Trenton, 1895 to 2026. 11 years have data for under 90 percent of days and are left out of rankings: 1895, 1898, 1899, 1956, 1961, 1971, 1986, 1987 and others.
Days with data per year at Trenton
YearDays with dataShare of yearComplete
189510328%No
189633291%Yes
189733090%Yes
189824166%No
189927174%No
190036299%Yes
190135798%Yes
1902365100%Yes
1903364100%Yes
1904366100%Yes
190536199%Yes
1906364100%Yes
190736399%Yes
1908365100%Yes
190936399%Yes
191033191%Yes
191136299%Yes
191236299%Yes
191336199%Yes
191436099%Yes
1915364100%Yes
1916366100%Yes
1917364100%Yes
191836299%Yes
1919365100%Yes
1920365100%Yes
1921364100%Yes
192236399%Yes
1923365100%Yes
192435597%Yes
1925365100%Yes
192636399%Yes
192736299%Yes
1928366100%Yes
1929365100%Yes
193036399%Yes
1931365100%Yes
1932366100%Yes
193336399%Yes
1934365100%Yes
1935365100%Yes
1936366100%Yes
1937365100%Yes
1938364100%Yes
1939365100%Yes
1940366100%Yes
1941365100%Yes
1942365100%Yes
1943365100%Yes
1944365100%Yes
1945365100%Yes
1946365100%Yes
1947365100%Yes
1948365100%Yes
1949364100%Yes
1950365100%Yes
1951365100%Yes
1952366100%Yes
195336299%Yes
1954364100%Yes
195533391%Yes
195630383%No
195736399%Yes
195836099%Yes
195935698%Yes
196036399%Yes
196129882%No
196235798%Yes
196336399%Yes
196435597%Yes
196532990%Yes
196636399%Yes
1967364100%Yes
196835296%Yes
196934595%Yes
197032990%Yes
197130182%No
197236199%Yes
197335397%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980365100%Yes
1981365100%Yes
1982365100%Yes
198336299%Yes
198436399%Yes
1985364100%Yes
198623364%No
198713236%No
1997318%No
199836399%Yes
199935998%Yes
200036499%Yes
200136399%Yes
200235998%Yes
200335698%Yes
200436199%Yes
200536399%Yes
200636299%Yes
200736399%Yes
200835798%Yes
2009365100%Yes
2010365100%Yes
2011365100%Yes
201236399%Yes
2013365100%Yes
201435397%Yes
201535597%Yes
201636299%Yes
201736099%Yes
201836299%Yes
201932589%No
202034995%Yes
202136099%Yes
202235898%Yes
202335196%Yes
202435296%Yes
202535898%Yes
202627776%No

Latest Records

20
Latest records at Trenton
DateStationRecordValueBeat old record byOld record stoodSignificance
19 September 2026Trenton, USdaily high min (Tie, Provisional)23.3 C (73.9 F)tie100 years10 of 100 (Routine)
11 August 2026Trenton, USdaily high min (Tie)24.4 C (75.9 F)tie129 years10 of 100 (Routine)
27 June 2026Trenton, USdaily low max (Tie)20.6 C (69.1 F)tie124 years10 of 100 (Routine)
22 June 2026Trenton, USdaily low max20.0 C (68.0 F)1.7 C (3.1 F)8 years16 of 100 (Routine)
15 April 2026Trenton, USdaily high max30.6 C (87.1 F)0.6 C (1.1 F)1 year10 of 100 (Routine)
15 April 2026Trenton, USdaily high min (Tie)16.7 C (62.1 F)tie49 years6 of 100 (Routine)
14 April 2026Trenton, USdaily high min18.9 C (66.0 F)0.6 C (1.1 F)89 years37 of 100 (Notable)
13 April 2026Trenton, USdaily high min (Tie)16.1 C (61.0 F)tie8 years3 of 100 (Routine)
31 March 2026Trenton, USdaily high min14.4 C (57.9 F)0.5 C (0.9 F)129 years40 of 100 (Notable)
31 March 2026Trenton, USdaily high max30.6 C (87.1 F)1.2 C (2.2 F)85 years36 of 100 (Notable)
27 March 2026Trenton, USdaily high max30.0 C (86.0 F)2.2 C (4.0 F)80 years36 of 100 (Notable)
26 March 2026Trenton, USdaily high max30.0 C (86.0 F)1.7 C (3.1 F)116 years42 of 100 (Notable)
22 March 2026Trenton, USmonthly high max33.3 C (91.9 F)2.2 C (4.0 F)39 years33 of 100 (Routine)
21 March 2026Trenton, USdaily high max30.6 C (87.1 F)1.2 C (2.2 F)119 years41 of 100 (Notable)
20 March 2026Trenton, USdaily high max26.7 C (80.1 F)1.1 C (2.0 F)13 years15 of 100 (Routine)
17 March 2026Trenton, USdaily low max-4.4 C (24.1 F)3.3 C (5.9 F)124 years44 of 100 (Notable)
11 March 2026Trenton, USdaily high max29.4 C (84.9 F)1.6 C (2.9 F)53 years28 of 100 (Routine)
10 March 2026Trenton, USdaily high max25.6 C (78.1 F)0.6 C (1.1 F)71 years31 of 100 (Routine)
18 February 2026Trenton, USdaily high min8.9 C (48.0 F)3.9 C (7.0 F)55 years31 of 100 (Routine)
17 February 2026Trenton, USdaily high min6.7 C (44.1 F)3.4 C (6.1 F)28 years22 of 100 (Routine)

Climate Trend

104 complete years, 1900 to 2025
Annual mean temperature at Trenton as warming stripes, 1900 to 2025 One stripe for each of 104 complete years at Trenton, 1900 to 2025. Blue stripes are years cooler than the station's own mean of 11.7 C (53.0 F); red stripes are warmer. The coolest year was 1978, at 9.3 C (48.7 F), and the warmest was 1954, at 13.9 C (57.0 F). The strongest colour marks a difference of 2.5 C (4.5 F). 1900: 12.0 C, +0.3 C from the station mean1901: 11.8 C, +0.1 C from the station mean1902: 10.9 C, -0.7 C from the station mean1903: 10.8 C, -0.9 C from the station mean1904: 10.4 C, -1.3 C from the station mean1905: 11.0 C, -0.7 C from the station mean1906: 11.6 C, -0.1 C from the station mean1907: 11.3 C, -0.4 C from the station mean1908: 12.2 C, +0.6 C from the station mean1909: 11.5 C, -0.2 C from the station mean1911: 12.5 C, +0.8 C from the station mean1912: 10.6 C, -1.1 C from the station mean1913: 12.3 C, +0.6 C from the station mean1914: 12.3 C, +0.6 C from the station mean1915: 11.5 C, -0.2 C from the station mean1916: 11.4 C, -0.3 C from the station mean1917: 10.0 C, -1.7 C from the station mean1918: 11.9 C, +0.2 C from the station mean1919: 11.5 C, -0.2 C from the station mean1920: 11.3 C, -0.4 C from the station mean1921: 13.1 C, +1.4 C from the station mean1922: 12.2 C, +0.5 C from the station mean1923: 11.7 C, +0.1 C from the station mean1924: 10.0 C, -1.7 C from the station mean1925: 11.2 C, -0.4 C from the station mean1926: 11.3 C, -0.4 C from the station mean1927: 11.8 C, +0.1 C from the station mean1928: 11.9 C, +0.2 C from the station mean1929: 10.4 C, -1.3 C from the station mean1930: 12.5 C, +0.8 C from the station mean1931: 13.8 C, +2.1 C from the station mean1932: 11.7 C, 0.0 C from the station mean1933: 13.1 C, +1.4 C from the station mean1934: 13.5 C, +1.8 C from the station mean1935: 11.6 C, -0.1 C from the station mean1936: 12.5 C, +0.8 C from the station mean1937: 11.2 C, -0.5 C from the station mean1938: 13.8 C, +2.1 C from the station mean1939: 13.5 C, +1.8 C from the station mean1940: 11.4 C, -0.3 C from the station mean1941: 13.3 C, +1.6 C from the station mean1942: 12.2 C, +0.5 C from the station mean1943: 11.6 C, -0.1 C from the station mean1944: 12.1 C, +0.4 C from the station mean1945: 11.6 C, -0.1 C from the station mean1946: 13.5 C, +1.8 C from the station mean1947: 12.3 C, +0.6 C from the station mean1948: 12.2 C, +0.5 C from the station mean1949: 12.2 C, +0.5 C from the station mean1950: 11.2 C, -0.5 C from the station mean1951: 10.8 C, -0.9 C from the station mean1952: 12.5 C, +0.8 C from the station mean1953: 13.5 C, +1.9 C from the station mean1954: 13.9 C, +2.2 C from the station mean1957: 11.9 C, +0.2 C from the station mean1958: 11.3 C, -0.4 C from the station mean1959: 11.5 C, -0.2 C from the station mean1960: 11.1 C, -0.6 C from the station mean1962: 10.7 C, -1.0 C from the station mean1963: 11.8 C, +0.1 C from the station mean1964: 12.2 C, +0.5 C from the station mean1966: 11.1 C, -0.6 C from the station mean1967: 11.1 C, -0.6 C from the station mean1968: 11.4 C, -0.3 C from the station mean1972: 11.6 C, -0.1 C from the station mean1974: 11.7 C, 0.0 C from the station mean1975: 11.5 C, -0.2 C from the station mean1976: 10.8 C, -0.9 C from the station mean1977: 10.9 C, -0.8 C from the station mean1978: 9.3 C, -2.4 C from the station mean1979: 9.6 C, -2.1 C from the station mean1980: 11.1 C, -0.6 C from the station mean1981: 11.5 C, -0.2 C from the station mean1982: 10.1 C, -1.6 C from the station mean1983: 10.7 C, -1.0 C from the station mean1984: 11.2 C, -0.5 C from the station mean1985: 10.1 C, -1.6 C from the station mean1998: 12.7 C, +1.0 C from the station mean1999: 12.2 C, +0.5 C from the station mean2000: 11.5 C, -0.2 C from the station mean2001: 11.7 C, 0.0 C from the station mean2002: 11.6 C, -0.1 C from the station mean2003: 11.1 C, -0.6 C from the station mean2004: 11.2 C, -0.5 C from the station mean2005: 11.9 C, +0.2 C from the station mean2006: 12.3 C, +0.6 C from the station mean2007: 11.9 C, +0.3 C from the station mean2008: 10.4 C, -1.3 C from the station mean2009: 10.7 C, -1.0 C from the station mean2010: 11.4 C, -0.2 C from the station mean2011: 11.6 C, -0.1 C from the station mean2012: 13.7 C, +2.0 C from the station mean2013: 10.7 C, -1.0 C from the station mean2014: 10.2 C, -1.5 C from the station mean2015: 12.1 C, +0.5 C from the station mean2016: 13.0 C, +1.3 C from the station mean2017: 12.8 C, +1.2 C from the station mean2018: 11.7 C, 0.0 C from the station mean2020: 11.6 C, -0.1 C from the station mean2021: 12.1 C, +0.4 C from the station mean2022: 10.8 C, -0.9 C from the station mean2023: 12.4 C, +0.7 C from the station mean2024: 12.8 C, +1.2 C from the station mean2025: 11.9 C, +0.2 C from the station mean1900191019201930194019501960197019801990200020102020
One stripe for each of 104 complete years at Trenton, 1900 to 2025. Blue stripes are years cooler than the station's own mean of 11.7 C (53.0 F); red stripes are warmer. The coolest year was 1978, at 9.3 C (48.7 F), and the warmest was 1954, at 13.9 C (57.0 F). The strongest colour marks a difference of 2.5 C (4.5 F).
Annual mean temperature at Trenton as warming stripes, 1900 to 2025
YearAnnual mean temperatureDifference from the station mean
190012.0 C+0.26 C
190111.8 C+0.07 C
190210.9 C-0.75 C
190310.8 C-0.90 C
190410.4 C-1.30 C
190511.0 C-0.67 C
190611.6 C-0.12 C
190711.3 C-0.42 C
190812.2 C+0.55 C
190911.5 C-0.21 C
191112.5 C+0.81 C
191210.6 C-1.14 C
191312.3 C+0.59 C
191412.3 C+0.62 C
191511.5 C-0.20 C
191611.4 C-0.34 C
191710.0 C-1.67 C
191811.9 C+0.24 C
191911.5 C-0.21 C
192011.3 C-0.38 C
192113.1 C+1.44 C
192212.2 C+0.46 C
192311.7 C+0.05 C
192410.0 C-1.67 C
192511.2 C-0.45 C
192611.3 C-0.43 C
192711.8 C+0.08 C
192811.9 C+0.24 C
192910.4 C-1.27 C
193012.5 C+0.76 C
193113.8 C+2.08 C
193211.7 C+0.04 C
193313.1 C+1.38 C
193413.5 C+1.77 C
193511.6 C-0.12 C
193612.5 C+0.81 C
193711.2 C-0.50 C
193813.8 C+2.14 C
193913.5 C+1.80 C
194011.4 C-0.27 C
194113.3 C+1.61 C
194212.2 C+0.52 C
194311.6 C-0.12 C
194412.1 C+0.43 C
194511.6 C-0.14 C
194613.5 C+1.77 C
194712.3 C+0.57 C
194812.2 C+0.48 C
194912.2 C+0.54 C
195011.2 C-0.47 C
195110.8 C-0.86 C
195212.5 C+0.82 C
195313.5 C+1.85 C
195413.9 C+2.20 C
195711.9 C+0.18 C
195811.3 C-0.42 C
195911.5 C-0.17 C
196011.1 C-0.56 C
196210.7 C-0.96 C
196311.8 C+0.08 C
196412.2 C+0.48 C
196611.1 C-0.63 C
196711.1 C-0.56 C
196811.4 C-0.32 C
197211.6 C-0.14 C
197411.7 C-0.02 C
197511.5 C-0.17 C
197610.8 C-0.92 C
197710.9 C-0.77 C
19789.3 C-2.43 C
19799.6 C-2.07 C
198011.1 C-0.64 C
198111.5 C-0.19 C
198210.1 C-1.57 C
198310.7 C-0.97 C
198411.2 C-0.53 C
198510.1 C-1.63 C
199812.7 C+1.02 C
199912.2 C+0.51 C
200011.5 C-0.19 C
200111.7 C+0.00 C
200211.6 C-0.09 C
200311.1 C-0.56 C
200411.2 C-0.46 C
200511.9 C+0.23 C
200612.3 C+0.59 C
200711.9 C+0.25 C
200810.4 C-1.33 C
200910.7 C-0.96 C
201011.4 C-0.25 C
201111.6 C-0.11 C
201213.7 C+2.01 C
201310.7 C-1.00 C
201410.2 C-1.46 C
201512.1 C+0.45 C
201613.0 C+1.28 C
201712.8 C+1.15 C
201811.7 C-0.04 C
202011.6 C-0.08 C
202112.1 C+0.40 C
202210.8 C-0.90 C
202312.4 C+0.70 C
202412.8 C+1.15 C
202511.9 C+0.18 C

The fitted trend in annual mean temperature here over 1900 to 2025 is -0.01 C (-0.06 to 0.04) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: -0.02 F (-0.11 to 0.07) per decade. The slope is a straight line fitted to 104 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Trenton
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature-0.01 C (-0.06 to 0.04) per decade-0.02 F (-0.11 to 0.07) per decade1900 to 2025104Not clearly different from zero
Mean daily maximum0.05 C (0.00 to 0.11) per decade0.10 F (-0.01 to 0.20) per decade1900 to 2025104Not clearly different from zero
Mean daily minimum-0.07 C (-0.12 to -0.02) per decade-0.13 F (-0.22 to -0.04) per decade1900 to 2025104Fall

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

1895 to 2026
Yearly extremes at Trenton: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)45.6 C (114.1 F)193637.2 C (99.0 F)123
Coldest night (TNn)-32.2 C (-26.0 F)1930-23.3 C (-9.9 F)123
Wettest day (Rx1day)169.2 mm (6.7 in)191467.3 mm (2.6 in)123
Wettest five days (Rx5day)220.8 mm (8.7 in)1914104.7 mm (4.1 in)123
Longest dry spell (CDD)57 days190424 days123

Hottest day (TXx)

Hottest day (TXx) at Trenton by year The hottest day of the year at Trenton, 1895 to 2026. The record is 45.6 C (114.1 F) in 1936, marked on the chart; the median year is 37.2 C (99.0 F). 10203040501900192019401960198020002020Record: 45.6 C (114.1 F) in 1936
The hottest day of the year at Trenton, 1895 to 2026. The record is 45.6 C (114.1 F) in 1936, marked on the chart; the median year is 37.2 C (99.0 F).
Hottest day (TXx) at Trenton by year
YearHottest day (TXx)
189536.1 C (97.0 F)
189637.2 C (99.0 F)
189737.2 C (99.0 F)
189835.0 C (95.0 F)
189935.0 C (95.0 F)
190035.6 C (96.1 F)
190140.6 C (105.1 F)
190233.3 C (91.9 F)
190335.6 C (96.1 F)
190433.3 C (91.9 F)
190534.4 C (93.9 F)
190634.4 C (93.9 F)
190735.0 C (95.0 F)
190834.4 C (93.9 F)
190936.7 C (98.1 F)
191036.7 C (98.1 F)
191140.0 C (104.0 F)
191236.1 C (97.0 F)
191338.9 C (102.0 F)
191437.8 C (100.0 F)
191532.2 C (90.0 F)
191636.7 C (98.1 F)
191737.2 C (99.0 F)
191840.0 C (104.0 F)
191936.1 C (97.0 F)
192035.6 C (96.1 F)
192134.4 C (93.9 F)
192234.4 C (93.9 F)
192335.0 C (95.0 F)
192433.3 C (91.9 F)
192535.0 C (95.0 F)
192636.1 C (97.0 F)
192736.1 C (97.0 F)
192835.0 C (95.0 F)
192938.9 C (102.0 F)
193043.3 C (109.9 F)
193140.6 C (105.1 F)
193237.8 C (100.0 F)
193338.9 C (102.0 F)
193445.0 C (113.0 F)
193539.4 C (102.9 F)
193645.6 C (114.1 F)
193738.9 C (102.0 F)
193842.2 C (108.0 F)
193941.1 C (106.0 F)
194041.7 C (107.1 F)
194140.6 C (105.1 F)
194237.8 C (100.0 F)
194336.7 C (98.1 F)
194435.6 C (96.1 F)
194537.8 C (100.0 F)
194637.2 C (99.0 F)
194741.1 C (106.0 F)
194838.9 C (102.0 F)
194935.6 C (96.1 F)
195035.0 C (95.0 F)
195136.1 C (97.0 F)
195237.2 C (99.0 F)
195338.9 C (102.0 F)
195443.3 C (109.9 F)
195538.9 C (102.0 F)
195639.4 C (102.9 F)
195739.4 C (102.9 F)
195836.7 C (98.1 F)
195936.7 C (98.1 F)
196036.1 C (97.0 F)
196133.9 C (93.0 F)
196234.4 C (93.9 F)
196335.6 C (96.1 F)
196436.7 C (98.1 F)
196533.9 C (93.0 F)
196636.7 C (98.1 F)
196735.6 C (96.1 F)
196835.0 C (95.0 F)
196936.1 C (97.0 F)
197040.0 C (104.0 F)
197137.2 C (99.0 F)
197236.7 C (98.1 F)
197336.1 C (97.0 F)
197439.4 C (102.9 F)
197538.9 C (102.0 F)
197638.9 C (102.0 F)
197737.2 C (99.0 F)
197836.7 C (98.1 F)
197936.1 C (97.0 F)
198040.6 C (105.1 F)
198136.1 C (97.0 F)
198236.1 C (97.0 F)
198342.2 C (108.0 F)
198441.7 C (107.1 F)
198536.1 C (97.0 F)
198637.2 C (99.0 F)
198738.3 C (100.9 F)
199710.6 C (51.1 F)
199838.9 C (102.0 F)
199940.6 C (105.1 F)
200038.9 C (102.0 F)
200138.3 C (100.9 F)
200238.3 C (100.9 F)
200341.1 C (106.0 F)
200435.6 C (96.1 F)
200540.6 C (105.1 F)
200640.0 C (104.0 F)
200738.9 C (102.0 F)
200837.2 C (99.0 F)
200937.8 C (100.0 F)
201037.2 C (99.0 F)
201140.0 C (104.0 F)
201242.2 C (108.0 F)
201340.0 C (104.0 F)
201436.1 C (97.0 F)
201537.8 C (100.0 F)
201637.8 C (100.0 F)
201737.2 C (99.0 F)
201839.4 C (102.9 F)
201936.1 C (97.0 F)
202034.4 C (93.9 F)
202135.6 C (96.1 F)
202236.1 C (97.0 F)
202337.2 C (99.0 F)
202436.7 C (98.1 F)
202535.6 C (96.1 F)
202637.8 C (100.0 F)

Coldest night (TNn)

Coldest night (TNn) at Trenton by year The coldest night of the year at Trenton, 1895 to 2026. The record is -32.2 C (-26.0 F) in 1930, marked on the chart; the median year is -23.3 C (-9.9 F). -40-30-20-1001900192019401960198020002020Record: -32.2 C (-26.0 F) in 1930
The coldest night of the year at Trenton, 1895 to 2026. The record is -32.2 C (-26.0 F) in 1930, marked on the chart; the median year is -23.3 C (-9.9 F).
Coldest night (TNn) at Trenton by year
YearColdest night (TNn)
1895-15.0 C (5.0 F)
1896-17.8 C (0.0 F)
1897-22.8 C (-9.0 F)
1898-19.4 C (-2.9 F)
1899-18.3 C (-0.9 F)
1900-20.0 C (-4.0 F)
1901-25.6 C (-14.1 F)
1902-25.6 C (-14.1 F)
1903-24.4 C (-11.9 F)
1904-26.7 C (-16.1 F)
1905-31.7 C (-25.1 F)
1906-18.3 C (-0.9 F)
1907-24.4 C (-11.9 F)
1908-18.3 C (-0.9 F)
1909-22.8 C (-9.0 F)
1910-26.7 C (-16.1 F)
1911-23.3 C (-9.9 F)
1912-31.7 C (-25.1 F)
1913-21.7 C (-7.1 F)
1914-22.8 C (-9.0 F)
1915-26.7 C (-16.1 F)
1916-27.8 C (-18.0 F)
1917-27.2 C (-17.0 F)
1918-28.9 C (-20.0 F)
1919-27.2 C (-17.0 F)
1920-20.0 C (-4.0 F)
1921-16.7 C (1.9 F)
1922-17.8 C (0.0 F)
1923-19.4 C (-2.9 F)
1924-28.3 C (-18.9 F)
1925-21.1 C (-6.0 F)
1926-22.2 C (-8.0 F)
1927-25.6 C (-14.1 F)
1928-22.8 C (-9.0 F)
1929-27.8 C (-18.0 F)
1930-32.2 C (-26.0 F)
1931-16.1 C (3.0 F)
1932-27.2 C (-17.0 F)
1933-26.1 C (-15.0 F)
1934-28.3 C (-18.9 F)
1935-22.2 C (-8.0 F)
1936-28.9 C (-20.0 F)
1937-18.9 C (-2.0 F)
1938-19.4 C (-2.9 F)
1939-20.0 C (-4.0 F)
1940-26.1 C (-15.0 F)
1941-15.6 C (3.9 F)
1942-24.4 C (-11.9 F)
1943-26.7 C (-16.1 F)
1944-25.6 C (-14.1 F)
1945-22.2 C (-8.0 F)
1946-18.3 C (-0.9 F)
1947-27.2 C (-17.0 F)
1948-25.6 C (-14.1 F)
1949-28.3 C (-18.9 F)
1950-20.6 C (-5.1 F)
1951-23.9 C (-11.0 F)
1952-18.3 C (-0.9 F)
1953-18.3 C (-0.9 F)
1954-20.0 C (-4.0 F)
1955-23.9 C (-11.0 F)
1956-18.9 C (-2.0 F)
1957-22.8 C (-9.0 F)
1958-27.2 C (-17.0 F)
1959-25.0 C (-13.0 F)
1960-25.6 C (-14.1 F)
1961-23.3 C (-9.9 F)
1962-25.6 C (-14.1 F)
1963-27.2 C (-17.0 F)
1964-21.1 C (-6.0 F)
1965-26.1 C (-15.0 F)
1966-26.7 C (-16.1 F)
1967-20.0 C (-4.0 F)
1968-25.0 C (-13.0 F)
1969-23.3 C (-9.9 F)
1970-26.7 C (-16.1 F)
1971-26.1 C (-15.0 F)
1972-26.1 C (-15.0 F)
1973-22.2 C (-8.0 F)
1974-31.1 C (-24.0 F)
1975-22.8 C (-9.0 F)
1976-27.8 C (-18.0 F)
1977-31.1 C (-24.0 F)
1978-27.8 C (-18.0 F)
1979-31.7 C (-25.1 F)
1980-26.7 C (-16.1 F)
1981-28.3 C (-18.9 F)
1982-30.6 C (-23.1 F)
1983-31.1 C (-24.0 F)
1984-26.1 C (-15.0 F)
1985-28.3 C (-18.9 F)
1986-20.6 C (-5.1 F)
1987-7.8 C (18.0 F)
1997-10.0 C (14.0 F)
1998-21.1 C (-6.0 F)
1999-23.9 C (-11.0 F)
2000-21.7 C (-7.1 F)
2001-24.4 C (-11.9 F)
2002-18.3 C (-0.9 F)
2003-21.7 C (-7.1 F)
2004-21.1 C (-6.0 F)
2005-19.4 C (-2.9 F)
2006-18.3 C (-0.9 F)
2007-20.0 C (-4.0 F)
2008-22.2 C (-8.0 F)
2009-22.8 C (-9.0 F)
2010-23.3 C (-9.9 F)
2011-23.3 C (-9.9 F)
2012-14.4 C (6.1 F)
2013-26.7 C (-16.1 F)
2014-23.9 C (-11.0 F)
2015-22.8 C (-9.0 F)
2016-23.9 C (-11.0 F)
2017-22.8 C (-9.0 F)
2018-26.1 C (-15.0 F)
2019-26.1 C (-15.0 F)
2020-22.8 C (-9.0 F)
2021-23.9 C (-11.0 F)
2022-22.8 C (-9.0 F)
2023-16.1 C (3.0 F)
2024-26.7 C (-16.1 F)
2025-23.3 C (-9.9 F)
2026-20.6 C (-5.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Trenton by year The wettest day of the year at Trenton, 1895 to 2026. The record is 169.2 mm (6.7 in) in 1914, marked on the chart; the median year is 67.3 mm (2.6 in). 0501001502001900192019401960198020002020Record: 169.2 mm (6.7 in) in 1914
The wettest day of the year at Trenton, 1895 to 2026. The record is 169.2 mm (6.7 in) in 1914, marked on the chart; the median year is 67.3 mm (2.6 in).
Wettest day (Rx1day) at Trenton by year
YearWettest day (Rx1day)
189560.2 mm (2.4 in)
189661.0 mm (2.4 in)
189758.4 mm (2.3 in)
189850.8 mm (2.0 in)
189971.1 mm (2.8 in)
190061.0 mm (2.4 in)
190150.0 mm (2.0 in)
190255.9 mm (2.2 in)
190367.8 mm (2.7 in)
190462.7 mm (2.5 in)
190562.5 mm (2.5 in)
190647.2 mm (1.9 in)
190756.4 mm (2.2 in)
190852.1 mm (2.1 in)
190967.3 mm (2.6 in)
191070.6 mm (2.8 in)
191172.6 mm (2.9 in)
191267.3 mm (2.6 in)
1913101.6 mm (4.0 in)
1914169.2 mm (6.7 in)
1915133.6 mm (5.3 in)
191654.1 mm (2.1 in)
191768.3 mm (2.7 in)
191881.8 mm (3.2 in)
1919114.3 mm (4.5 in)
192072.4 mm (2.9 in)
192197.0 mm (3.8 in)
1922113.0 mm (4.4 in)
192355.1 mm (2.2 in)
192454.6 mm (2.1 in)
1925104.6 mm (4.1 in)
192666.0 mm (2.6 in)
192760.2 mm (2.4 in)
192883.6 mm (3.3 in)
192984.1 mm (3.3 in)
193051.6 mm (2.0 in)
193178.2 mm (3.1 in)
193248.5 mm (1.9 in)
193348.3 mm (1.9 in)
193449.0 mm (1.9 in)
193545.2 mm (1.8 in)
193678.5 mm (3.1 in)
193758.9 mm (2.3 in)
193856.9 mm (2.2 in)
1939128.0 mm (5.0 in)
194063.8 mm (2.5 in)
194148.8 mm (1.9 in)
194278.2 mm (3.1 in)
194355.9 mm (2.2 in)
194479.8 mm (3.1 in)
194585.6 mm (3.4 in)
194681.3 mm (3.2 in)
1947100.6 mm (4.0 in)
194852.3 mm (2.1 in)
1949103.4 mm (4.1 in)
195045.7 mm (1.8 in)
195140.9 mm (1.6 in)
195264.8 mm (2.6 in)
195353.6 mm (2.1 in)
195456.9 mm (2.2 in)
195593.7 mm (3.7 in)
195663.5 mm (2.5 in)
195745.2 mm (1.8 in)
195858.4 mm (2.3 in)
195948.8 mm (1.9 in)
196081.3 mm (3.2 in)
1961114.3 mm (4.5 in)
196270.9 mm (2.8 in)
196367.8 mm (2.7 in)
196463.5 mm (2.5 in)
196553.3 mm (2.1 in)
196679.2 mm (3.1 in)
196794.2 mm (3.7 in)
196844.5 mm (1.8 in)
196963.5 mm (2.5 in)
197054.1 mm (2.1 in)
197164.8 mm (2.6 in)
197235.1 mm (1.4 in)
197355.9 mm (2.2 in)
1974141.0 mm (5.6 in)
197545.7 mm (1.8 in)
197695.3 mm (3.8 in)
197786.4 mm (3.4 in)
1978142.5 mm (5.6 in)
197976.2 mm (3.0 in)
198071.1 mm (2.8 in)
1981128.3 mm (5.1 in)
1982111.5 mm (4.4 in)
198340.6 mm (1.6 in)
198475.2 mm (3.0 in)
198581.0 mm (3.2 in)
198659.9 mm (2.4 in)
198771.1 mm (2.8 in)
199715.7 mm (0.6 in)
1998127.5 mm (5.0 in)
199961.5 mm (2.4 in)
200071.1 mm (2.8 in)
200176.2 mm (3.0 in)
200253.3 mm (2.1 in)
200370.1 mm (2.8 in)
200466.0 mm (2.6 in)
200548.3 mm (1.9 in)
200650.8 mm (2.0 in)
200799.1 mm (3.9 in)
2008133.4 mm (5.3 in)
200967.3 mm (2.6 in)
201067.8 mm (2.7 in)
201191.7 mm (3.6 in)
201250.8 mm (2.0 in)
201378.0 mm (3.1 in)
201499.8 mm (3.9 in)
201586.4 mm (3.4 in)
2016101.1 mm (4.0 in)
2017160.0 mm (6.3 in)
201890.7 mm (3.6 in)
2019109.2 mm (4.3 in)
202050.8 mm (2.0 in)
202194.7 mm (3.7 in)
202271.6 mm (2.8 in)
202343.4 mm (1.7 in)
202464.8 mm (2.6 in)
2025104.1 mm (4.1 in)
202663.5 mm (2.5 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Trenton by year The wettest five days of the year at Trenton, 1895 to 2026. The record is 220.8 mm (8.7 in) in 1914, marked on the chart; the median year is 104.7 mm (4.1 in). 0501001502002501900192019401960198020002020Record: 220.8 mm (8.7 in) in 1914
The wettest five days of the year at Trenton, 1895 to 2026. The record is 220.8 mm (8.7 in) in 1914, marked on the chart; the median year is 104.7 mm (4.1 in).
Wettest five days (Rx5day) at Trenton by year
YearWettest five days (Rx5day)
189584.6 mm (3.3 in)
1896107.4 mm (4.2 in)
189778.7 mm (3.1 in)
189875.7 mm (3.0 in)
189986.4 mm (3.4 in)
190088.7 mm (3.5 in)
190156.4 mm (2.2 in)
190292.3 mm (3.6 in)
1903104.7 mm (4.1 in)
190475.4 mm (3.0 in)
1905138.7 mm (5.5 in)
190651.5 mm (2.0 in)
1907102.7 mm (4.0 in)
1908129.3 mm (5.1 in)
1909180.1 mm (7.1 in)
1910136.5 mm (5.4 in)
1911147.8 mm (5.8 in)
191287.5 mm (3.4 in)
191396.8 mm (3.8 in)
1914220.8 mm (8.7 in)
1915184.6 mm (7.3 in)
1916107.7 mm (4.2 in)
1917134.3 mm (5.3 in)
191897.1 mm (3.8 in)
1919152.6 mm (6.0 in)
1920103.9 mm (4.1 in)
1921119.8 mm (4.7 in)
1922160.7 mm (6.3 in)
192385.1 mm (3.4 in)
192486.4 mm (3.4 in)
1925129.0 mm (5.1 in)
1926121.1 mm (4.8 in)
1927104.7 mm (4.1 in)
1928200.0 mm (7.9 in)
1929154.7 mm (6.1 in)
193070.6 mm (2.8 in)
1931144.1 mm (5.7 in)
1932100.0 mm (3.9 in)
193365.3 mm (2.6 in)
1934112.2 mm (4.4 in)
193589.2 mm (3.5 in)
1936106.2 mm (4.2 in)
193775.9 mm (3.0 in)
193874.4 mm (2.9 in)
1939134.1 mm (5.3 in)
194088.9 mm (3.5 in)
194183.1 mm (3.3 in)
194284.0 mm (3.3 in)
194393.0 mm (3.7 in)
1944115.6 mm (4.6 in)
1945107.1 mm (4.2 in)
1946110.1 mm (4.3 in)
1947180.3 mm (7.1 in)
194897.8 mm (3.9 in)
1949105.9 mm (4.2 in)
195052.3 mm (2.1 in)
195169.8 mm (2.7 in)
195290.1 mm (3.5 in)
195374.4 mm (2.9 in)
195487.2 mm (3.4 in)
1955117.3 mm (4.6 in)
1956139.7 mm (5.5 in)
195760.5 mm (2.4 in)
195872.1 mm (2.8 in)
195979.7 mm (3.1 in)
1960115.6 mm (4.6 in)
1961146.0 mm (5.7 in)
1962154.2 mm (6.1 in)
1963100.6 mm (4.0 in)
196485.8 mm (3.4 in)
1965109.4 mm (4.3 in)
1966120.6 mm (4.7 in)
1967120.8 mm (4.8 in)
196861.8 mm (2.4 in)
196979.2 mm (3.1 in)
197077.2 mm (3.0 in)
197195.8 mm (3.8 in)
197256.2 mm (2.2 in)
1973100.1 mm (3.9 in)
1974141.0 mm (5.6 in)
197567.8 mm (2.7 in)
197695.8 mm (3.8 in)
1977168.5 mm (6.6 in)
1978183.1 mm (7.2 in)
1979103.9 mm (4.1 in)
1980112.3 mm (4.4 in)
1981213.6 mm (8.4 in)
1982207.2 mm (8.2 in)
198368.9 mm (2.7 in)
1984153.2 mm (6.0 in)
1985117.0 mm (4.6 in)
1986151.9 mm (6.0 in)
198791.4 mm (3.6 in)
199725.9 mm (1.0 in)
1998141.5 mm (5.6 in)
199985.6 mm (3.4 in)
200094.9 mm (3.7 in)
2001135.2 mm (5.3 in)
2002164.2 mm (6.5 in)
2003107.9 mm (4.2 in)
2004136.9 mm (5.4 in)
200573.2 mm (2.9 in)
200672.1 mm (2.8 in)
2007110.8 mm (4.4 in)
2008160.9 mm (6.3 in)
200999.8 mm (3.9 in)
2010142.2 mm (5.6 in)
201192.7 mm (3.6 in)
2012105.7 mm (4.2 in)
2013134.7 mm (5.3 in)
2014123.7 mm (4.9 in)
2015116.9 mm (4.6 in)
2016112.5 mm (4.4 in)
2017162.8 mm (6.4 in)
2018187.3 mm (7.4 in)
2019133.9 mm (5.3 in)
202062.5 mm (2.5 in)
2021131.3 mm (5.2 in)
202277.8 mm (3.1 in)
202385.6 mm (3.4 in)
202493.2 mm (3.7 in)
2025108.7 mm (4.3 in)
202681.8 mm (3.2 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Trenton by year The longest dry spell of the year at Trenton, 1895 to 2026. The record is 57 days in 1904, marked on the chart; the median year is 24 days. 02040601900192019401960198020002020Record: 57 days in 1904
The longest dry spell of the year at Trenton, 1895 to 2026. The record is 57 days in 1904, marked on the chart; the median year is 24 days.
Longest dry spell (CDD) at Trenton by year
YearLongest dry spell (CDD)
189524 days
189621 days
189731 days
189815 days
189913 days
190024 days
190129 days
190220 days
190323 days
190457 days
190522 days
190635 days
190723 days
190830 days
190927 days
191030 days
191113 days
191230 days
191321 days
191421 days
191533 days
191631 days
191738 days
191822 days
191932 days
192015 days
192122 days
192219 days
192318 days
192420 days
192519 days
192616 days
192721 days
192834 days
192915 days
193024 days
193119 days
193217 days
193326 days
193436 days
193518 days
193626 days
193715 days
193824 days
193935 days
194018 days
194119 days
194215 days
194327 days
194426 days
194527 days
194622 days
194729 days
194828 days
194927 days
195026 days
195116 days
195232 days
195323 days
195425 days
195520 days
195637 days
195718 days
195836 days
195917 days
196017 days
196118 days
196221 days
196334 days
196427 days
196521 days
196629 days
196728 days
196825 days
196936 days
197028 days
197127 days
197223 days
197322 days
197422 days
197516 days
197641 days
197719 days
197832 days
197926 days
198028 days
198131 days
198216 days
198349 days
198440 days
198522 days
198633 days
198724 days
199711 days
199823 days
199937 days
200026 days
200124 days
200257 days
200321 days
200425 days
200529 days
200620 days
200728 days
200814 days
200924 days
201018 days
201123 days
201232 days
201342 days
201419 days
201531 days
201623 days
201734 days
201821 days
201926 days
202018 days
202146 days
202217 days
202327 days
202424 days
202524 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

104 years with a frost

Across 104 years with a frost, the median last spring frost at Trenton falls on 18 April and the median first autumn frost on 17 October, which leaves a median of 186 days between them.

In 1983 to 2025 the median growing season was 188 days. That is 1 day fewer than in 1900 to 1930.

Fitted over all years, the growing season changes by 0.0 days per decade at this station.

Frost dates and growing season at Trenton
MeasureMedian, all yearsEarliest period (1900 to 1930)Recent period (1983 to 2025)Recent against earliestFitted trend
Last spring frost18 April16 April14 April2 days earlier0.0 days per decade
First autumn frost17 October20 October19 October1 day earlier+0.1 days per decade
Growing days186 days189 days188 days1 day fewer0.0 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

107 years, 1900 to 2025

A day with at least 70.0 mm (2.8 in) of rain is expected about once in 2 years. A day with at least 167.4 mm (6.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Trenton: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years70.0 mm (2.8 in)
5 years93.3 mm (3.7 in)
10 years109.8 mm (4.3 in)
25 years131.9 mm (5.2 in)
50 years149.3 mm (5.9 in)
100 years167.4 mm (6.6 in)

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 107 years of values from 1900 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: 160.0 mm (6.3 in) in 2017; 142.5 mm (5.6 in) in 1978; 141.0 mm (5.6 in) in 1974.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Trenton, at 1938. Each is measured against neighbouring stations.

  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1938 ran 0.2 C (0.4 F) higher than in the years before (possible change).
Suspected changes in the annual mean temperature at Trenton, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
1938+0.2+0.4possible5

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

2010 to 2025 against 1961 to 1990

Over 2010 to 2025, Trenton had a mean temperature of 11.9 C (53.5 F) and 930.2 mm (36.6 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Virden (United States, 334 km away), Canton L&D 20 (United States, 178 km away) and Keokuk L&D 19 (United States, 193 km away).

Climate twins of Trenton: stations whose 1961 to 1990 climate is closest to its 2010 to 2025 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
VirdenUnited States334 km (208 mi)11.9 C (53.4 F)949.2 mm (37.4 in)0.60
Canton L&D 20United States178 km (111 mi)11.8 C (53.2 F)965.2 mm (38.0 in)0.63
Keokuk L&D 19United States193 km (120 mi)11.7 C (53.0 F)933.6 mm (36.8 in)0.63

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 Trenton standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Trenton 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 2026-10-15 (15 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-15).