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Chapman Weather Records (USC00141435)

Record envelope, standing records and threshold days for Chapman (USC00141435), Kansas, United States, with 123 years of record.

Key Facts for Chapman

  • Chapman (USC00141435) is a weather station in Kansas, United States at 38.97 latitude and -97.02 longitude, 339 m (1,112 ft) above sea level.
  • The station reports from 1904 to 2026, 123 years of record.
  • 1,464 records set at Chapman still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Chapman tied a daily record high maximum temperature of 31.7 C (89.1 F) on 11 October 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Kansas, United States, 38.97 latitude, -97.02 longitude.
  • Elevation: 339 m (1,112 ft).
  • Period of record: 1904 to 2026, 123 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

15 days at or beyond a record
Daily record high and record low at Chapman, with 2026 drawn through them The band shows the record high and record low for each calendar day at Chapman. The lines show the 2026 daily maximum and minimum. 15 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 Chapman. The lines show the 2026 daily maximum and minimum. 15 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Chapman, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan23.3 C (73.9 F)-33.9 C (-29.0 F)19.4 C (66.9 F)-26.1 C (-15.0 F)
Feb27.8 C (82.0 F)-29.4 C (-20.9 F)25.6 C (78.1 F)-23.9 C (-11.0 F)
Mar35.6 C (96.1 F)-25.0 C (-13.0 F)35.6 C (96.1 F)-11.7 C (10.9 F)
Apr36.7 C (98.1 F)-16.7 C (1.9 F)31.7 C (89.1 F)-1.7 C (28.9 F)
May38.3 C (100.9 F)-5.6 C (21.9 F)35.0 C (95.0 F)2.2 C (36.0 F)
Jun44.4 C (111.9 F)4.4 C (39.9 F)34.4 C (93.9 F)12.2 C (54.0 F)
Jul46.7 C (116.1 F)6.7 C (44.1 F)39.4 C (102.9 F)17.8 C (64.0 F)
Aug46.1 C (115.0 F)4.4 C (39.9 F)39.4 C (102.9 F)17.2 C (63.0 F)
Sep45.6 C (114.1 F)-2.2 C (28.0 F)39.4 C (102.9 F)15.0 C (59.0 F)
Oct37.8 C (100.0 F)-11.1 C (12.0 F)32.8 C (91.0 F)7.2 C (45.0 F)
Nov31.1 C (88.0 F)-22.8 C (-9.0 F)n/an/a
Dec26.1 C (79.0 F)-26.1 C (-15.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Chapman by the year they were set 1,464 records at Chapman still stand. 1936 holds the most, with 52. 02040601904: 141907: 281908: 121909: 201910: 261911: 451912: 201913: 211914: 191915: 191916: 231917: 291918: 371919: 311920: 201921: 231922: 161923: 161924: 331925: 351926: 241927: 191928: 201929: 171930: 311931: 311932: 251933: 321934: 381935: 201936: 521937: 221938: 261939: 271940: 261941: 161942: 171943: 241944: 211945: 131946: 221947: 231948: 111949: 121950: 281951: 191952: 281953: 171954: 212009: 52010: 122011: 132012: 202013: 312014: 212015: 122016: 112017: 212018: 222019: 82020: 152021: 162022: 142023: 152024: 202025: 182026: 211904191319201927193419411948200920162023
1,464 records at Chapman still stand. 1936 holds the most, with 52.
Standing records at Chapman by the year they were set
Year setStanding records
190414
190728
190812
190920
191026
191145
191220
191321
191419
191519
191623
191729
191837
191931
192020
192123
192216
192316
192433
192535
192624
192719
192820
192917
193031
193131
193225
193332
193438
193520
193652
193722
193826
193927
194026
194116
194217
194324
194421
194513
194622
194723
194811
194912
195028
195119
195228
195317
195421
20095
201012
201113
201220
201331
201421
201512
201611
201721
201822
20198
202015
202116
202214
202315
202420
202518
202621

All-Time Record Progression

5 new records
When Chapman set new all-time records 5 all-time records were set at Chapman between 4 January 1947 and 6 January 2025. Each dot is a new record. Record low minimum temperatureRecord snow depthRecord daily snowfall4 January 1947: Record low minimum temperature -33.9 C (-29.0 F)30 January 1979: Record snow depth 33.0 cm (13.0 in)3 February 1983: Record snow depth 35.6 cm (14.0 in)5 February 1983: Record snow depth 45.7 cm (18.0 in)6 January 2025: Record daily snowfall 45.7 cm (18.0 in)19501960197019801990200020102020
5 all-time records were set at Chapman between 4 January 1947 and 6 January 2025. Each dot is a new record.
When Chapman set new all-time records
DateKindDetail
1947-01-04Record low minimum temperatureRecord low minimum temperature -33.9 C (-29.0 F)
1979-01-30Record snow depthRecord snow depth 33.0 cm (13.0 in)
1983-02-03Record snow depthRecord snow depth 35.6 cm (14.0 in)
1983-02-05Record snow depthRecord snow depth 45.7 cm (18.0 in)
2025-01-06Record daily snowfallRecord daily snowfall 45.7 cm (18.0 in)

Wettest Day of Each Month

Sep: 205.7 mm (8.1 in)
Record daily precipitation for each month at Chapman The wettest day on record for each calendar month at Chapman. The most was 205.7 mm (8.1 in) on 12 September 1933. 0100200300 Jan: 50.8 mm (2.0 in), 9 January 1929 Jan Feb: 62.5 mm (2.5 in), 24 February 2001 Feb Mar: 110.5 mm (4.4 in), 15 March 1919 Mar Apr: 69.1 mm (2.7 in), 27 April 1969 Apr May: 101.1 mm (4.0 in), 22 May 1999 May Jun: 129.5 mm (5.1 in), 18 June 1977 Jun Jul: 180.3 mm (7.1 in), 18 July 1972 Jul Aug: 143.5 mm (5.6 in), 15 August 1938 Aug Sep: 205.7 mm (8.1 in), 12 September 1933 Sep Oct: 112.5 mm (4.4 in), 19 October 1941 Oct Nov: 101.6 mm (4.0 in), 8 November 1916 Nov Dec: 50.8 mm (2.0 in), 11 December 2007 Dec
The wettest day on record for each calendar month at Chapman. The most was 205.7 mm (8.1 in) on 12 September 1933.
Record daily precipitation for each month at Chapman
MonthRecord daily precipitation (mm)Date
Jan50.8 mm (2.0 in)9 January 1929
Feb62.5 mm (2.5 in)24 February 2001
Mar110.5 mm (4.4 in)15 March 1919
Apr69.1 mm (2.7 in)27 April 1969
May101.1 mm (4.0 in)22 May 1999
Jun129.5 mm (5.1 in)18 June 1977
Jul180.3 mm (7.1 in)18 July 1972
Aug143.5 mm (5.6 in)15 August 1938
Sep205.7 mm (8.1 in)12 September 1933
Oct112.5 mm (4.4 in)19 October 1941
Nov101.6 mm (4.0 in)8 November 1916
Dec50.8 mm (2.0 in)11 December 2007

Period of Record Coverage

1904 to 2026
Days with data per year at Chapman 67 years of record at Chapman, 1904 to 2026. 11 years have data for under 90 percent of days and are left out of rankings: 1904, 1907, 1912, 1913, 1954, 2009, 2019, 2020 and others. 1904: 325 of 366 days1907: 327 of 365 days1908: 361 of 366 days1909: 363 of 365 days1910: 362 of 365 days1911: 357 of 365 days1912: 273 of 366 days1913: 122 of 365 days1914: 363 of 365 days1915: 363 of 365 days1916: 366 of 366 days1917: 363 of 365 days1918: 356 of 365 days1919: 337 of 365 days1920: 358 of 366 days1921: 360 of 365 days1922: 360 of 365 days1923: 354 of 365 days1924: 362 of 366 days1925: 363 of 365 days1926: 362 of 365 days1927: 363 of 365 days1928: 364 of 366 days1929: 363 of 365 days1930: 364 of 365 days1931: 363 of 365 days1932: 364 of 366 days1933: 361 of 365 days1934: 355 of 365 days1935: 331 of 365 days1936: 361 of 366 days1937: 358 of 365 days1938: 360 of 365 days1939: 362 of 365 days1940: 363 of 366 days1941: 362 of 365 days1942: 362 of 365 days1943: 331 of 365 days1944: 349 of 366 days1945: 363 of 365 days1946: 358 of 365 days1947: 355 of 365 days1948: 361 of 366 days1949: 364 of 365 days1950: 361 of 365 days1951: 364 of 365 days1952: 353 of 366 days1953: 363 of 365 days1954: 257 of 365 days2009: 89 of 365 days2010: 358 of 365 days2011: 354 of 365 days2012: 362 of 366 days2013: 353 of 365 days2014: 357 of 365 days2015: 353 of 365 days2016: 352 of 366 days2017: 358 of 365 days2018: 335 of 365 days2019: 255 of 365 days2020: 313 of 366 days2021: 244 of 365 days2022: 144 of 365 days2023: 365 of 365 days2024: 366 of 366 days2025: 365 of 365 days2026: 287 of 365 days1910192019301940195020102020
67 years of record at Chapman, 1904 to 2026. 11 years have data for under 90 percent of days and are left out of rankings: 1904, 1907, 1912, 1913, 1954, 2009, 2019, 2020 and others.
Days with data per year at Chapman
YearDays with dataShare of yearComplete
190432589%No
190732790%No
190836199%Yes
190936399%Yes
191036299%Yes
191135798%Yes
191227375%No
191312233%No
191436399%Yes
191536399%Yes
1916366100%Yes
191736399%Yes
191835698%Yes
191933792%Yes
192035898%Yes
192136099%Yes
192236099%Yes
192335497%Yes
192436299%Yes
192536399%Yes
192636299%Yes
192736399%Yes
192836499%Yes
192936399%Yes
1930364100%Yes
193136399%Yes
193236499%Yes
193336199%Yes
193435597%Yes
193533191%Yes
193636199%Yes
193735898%Yes
193836099%Yes
193936299%Yes
194036399%Yes
194136299%Yes
194236299%Yes
194333191%Yes
194434995%Yes
194536399%Yes
194635898%Yes
194735597%Yes
194836199%Yes
1949364100%Yes
195036199%Yes
1951364100%Yes
195235396%Yes
195336399%Yes
195425770%No
20098924%No
201035898%Yes
201135497%Yes
201236299%Yes
201335397%Yes
201435798%Yes
201535397%Yes
201635296%Yes
201735898%Yes
201833592%Yes
201925570%No
202031386%No
202124467%No
202214439%No
2023365100%Yes
2024366100%Yes
2025365100%Yes
202628779%No

Latest Records

20
Latest records at Chapman
DateStationRecordValueBeat old record byOld record stoodSignificance
11 October 2026Chapman, USdaily high max (Tie, Provisional)31.7 C (89.1 F)tie1 year2 of 100 (Routine)
2 October 2026Chapman, USdaily rain (Provisional)67.6 mm (2.7 in)31.3 mm (1.2 in)76 years54 of 100 (Notable)
25 September 2026Chapman, USdaily rain (Provisional)29.5 mm (1.2 in)1.1 mm (0.04 in)71 years31 of 100 (Routine)
9 September 2026Chapman, USdaily high max (Provisional)39.4 C (102.9 F)0.5 C (0.9 F)107 years40 of 100 (Notable)
24 July 2026Chapman, USdaily rain69.9 mm (2.8 in)39.4 mm (1.6 in)57 years46 of 100 (Notable)
3 July 2026Chapman, USdaily high min24.4 C (75.9 F)0.5 C (0.9 F)13 years15 of 100 (Routine)
30 June 2026Chapman, USdaily high min (Tie)25.6 C (78.1 F)tie8 years3 of 100 (Routine)
11 June 2026Chapman, USdaily rain78.7 mm (3.1 in)8.8 mm (0.35 in)88 years41 of 100 (Notable)
9 June 2026Chapman, USdaily rain73.9 mm (2.9 in)18.3 mm (0.7 in)84 years46 of 100 (Notable)
31 May 2026Chapman, USdaily rain76.2 mm (3.0 in)25.4 mm (1.0 in)96 years57 of 100 (Notable)
18 May 2026Chapman, USdaily rain65.3 mm (2.6 in)16.3 mm (0.6 in)111 years51 of 100 (Notable)
18 May 2026Chapman, USdaily high max (Tie)33.3 C (91.9 F)tie108 years10 of 100 (Routine)
17 May 2026Chapman, USdaily high max35.0 C (95.0 F)0.6 C (1.1 F)119 years41 of 100 (Notable)
15 April 2026Chapman, USdaily high min18.9 C (66.0 F)2.2 C (4.0 F)8 years15 of 100 (Routine)
14 April 2026Chapman, USdaily high min20.0 C (68.0 F)3.3 C (5.9 F)88 years41 of 100 (Notable)
13 April 2026Chapman, USdaily high min17.8 C (64.0 F)0.6 C (1.1 F)84 years36 of 100 (Notable)
27 March 2026Chapman, USdaily high max32.8 C (91.0 F)5.0 C (9.0 F)116 years46 of 100 (Notable)
26 March 2026Chapman, USdaily high max34.4 C (93.9 F)3.8 C (6.8 F)116 years44 of 100 (Notable)
22 March 2026Chapman, USmonthly high max35.6 C (96.1 F)1.2 C (2.2 F)118 years51 of 100 (Notable)
17 March 2026Chapman, USdaily low min-11.7 C (10.9 F)1.1 C (2.0 F)84 years36 of 100 (Notable)

Climate Trend

52 complete years, 1908 to 2025
Annual mean temperature at Chapman as warming stripes, 1908 to 2025 One stripe for each of 52 complete years at Chapman, 1908 to 2025. Blue stripes are years cooler than the station's own mean of 13.1 C (55.5 F); red stripes are warmer. The coolest year was 1951, at 11.3 C (52.3 F), and the warmest was 1938, at 14.7 C (58.5 F). The strongest colour marks a difference of 1.9 C (3.4 F). 1908: 13.3 C, +0.3 C from the station mean1909: 12.3 C, -0.7 C from the station mean1910: 12.8 C, -0.3 C from the station mean1911: 13.5 C, +0.4 C from the station mean1914: 13.2 C, +0.2 C from the station mean1915: 12.1 C, -0.9 C from the station mean1916: 12.3 C, -0.8 C from the station mean1917: 11.7 C, -1.3 C from the station mean1918: 13.1 C, +0.1 C from the station mean1920: 12.8 C, -0.3 C from the station mean1921: 14.7 C, +1.7 C from the station mean1922: 13.5 C, +0.4 C from the station mean1923: 13.1 C, 0.0 C from the station mean1924: 12.0 C, -1.1 C from the station mean1925: 13.1 C, +0.1 C from the station mean1926: 13.1 C, 0.0 C from the station mean1927: 12.8 C, -0.3 C from the station mean1928: 13.2 C, +0.2 C from the station mean1929: 11.9 C, -1.2 C from the station mean1930: 13.5 C, +0.4 C from the station mean1931: 14.6 C, +1.5 C from the station mean1932: 12.3 C, -0.8 C from the station mean1933: 14.3 C, +1.2 C from the station mean1936: 13.3 C, +0.2 C from the station mean1937: 12.7 C, -0.4 C from the station mean1938: 14.7 C, +1.7 C from the station mean1939: 14.4 C, +1.3 C from the station mean1940: 12.6 C, -0.5 C from the station mean1941: 13.9 C, +0.8 C from the station mean1942: 12.8 C, -0.3 C from the station mean1944: 13.2 C, +0.1 C from the station mean1945: 12.6 C, -0.5 C from the station mean1946: 14.4 C, +1.3 C from the station mean1947: 13.3 C, +0.3 C from the station mean1948: 12.8 C, -0.3 C from the station mean1949: 13.0 C, -0.1 C from the station mean1950: 12.3 C, -0.7 C from the station mean1951: 11.3 C, -1.8 C from the station mean1952: 13.1 C, 0.0 C from the station mean1953: 14.1 C, +1.1 C from the station mean2010: 12.4 C, -0.7 C from the station mean2011: 12.3 C, -0.8 C from the station mean2012: 14.1 C, +1.0 C from the station mean2013: 11.5 C, -1.6 C from the station mean2014: 11.9 C, -1.2 C from the station mean2015: 13.1 C, 0.0 C from the station mean2016: 14.0 C, +0.9 C from the station mean2017: 13.7 C, +0.6 C from the station mean2018: 12.8 C, -0.2 C from the station mean2023: 13.6 C, +0.5 C from the station mean2024: 13.8 C, +0.7 C from the station mean2025: 12.9 C, -0.2 C from the station mean190819201930194019501960197019801990200020102020
One stripe for each of 52 complete years at Chapman, 1908 to 2025. Blue stripes are years cooler than the station's own mean of 13.1 C (55.5 F); red stripes are warmer. The coolest year was 1951, at 11.3 C (52.3 F), and the warmest was 1938, at 14.7 C (58.5 F). The strongest colour marks a difference of 1.9 C (3.4 F).
Annual mean temperature at Chapman as warming stripes, 1908 to 2025
YearAnnual mean temperatureDifference from the station mean
190813.3 C+0.26 C
190912.3 C-0.73 C
191012.8 C-0.27 C
191113.5 C+0.39 C
191413.2 C+0.16 C
191512.1 C-0.94 C
191612.3 C-0.75 C
191711.7 C-1.33 C
191813.1 C+0.07 C
192012.8 C-0.32 C
192114.7 C+1.66 C
192213.5 C+0.40 C
192313.1 C+0.02 C
192412.0 C-1.11 C
192513.1 C+0.07 C
192613.1 C+0.04 C
192712.8 C-0.28 C
192813.2 C+0.16 C
192911.9 C-1.21 C
193013.5 C+0.40 C
193114.6 C+1.51 C
193212.3 C-0.80 C
193314.3 C+1.21 C
193613.3 C+0.23 C
193712.7 C-0.39 C
193814.7 C+1.66 C
193914.4 C+1.29 C
194012.6 C-0.45 C
194113.9 C+0.85 C
194212.8 C-0.25 C
194413.2 C+0.14 C
194512.6 C-0.52 C
194614.4 C+1.34 C
194713.3 C+0.26 C
194812.8 C-0.25 C
194913.0 C-0.12 C
195012.3 C-0.74 C
195111.3 C-1.81 C
195213.1 C+0.02 C
195314.1 C+1.06 C
201012.4 C-0.71 C
201112.3 C-0.78 C
201214.1 C+1.04 C
201311.5 C-1.61 C
201411.9 C-1.22 C
201513.1 C+0.02 C
201614.0 C+0.90 C
201713.7 C+0.64 C
201812.8 C-0.23 C
202313.6 C+0.49 C
202413.8 C+0.74 C
202512.9 C-0.18 C

The fitted trend in annual mean temperature here over 1908 to 2025 is 0.00 C (-0.06 to 0.06) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.00 F (-0.11 to 0.11) per decade. The slope is a straight line fitted to 52 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Chapman
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.00 C (-0.06 to 0.06) per decade0.00 F (-0.11 to 0.11) per decade1908 to 202552Not clearly different from zero
Mean daily maximum-0.03 C (-0.11 to 0.05) per decade-0.1 F (-0.2 to 0.1) per decade1908 to 202552Not clearly different from zero
Mean daily minimum0.03 C (-0.03 to 0.09) per decade0.06 F (-0.05 to 0.16) per decade1908 to 202552Not 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

1904 to 2026
Yearly extremes at Chapman: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)46.7 C (116.1 F)193640.6 C (105.1 F)67
Coldest night (TNn)-33.9 C (-29.0 F)1947-23.9 C (-11.0 F)67
Wettest day (Rx1day)205.7 mm (8.1 in)193364.5 mm (2.5 in)121
Wettest five days (Rx5day)303.7 mm (12.0 in)195196.7 mm (3.8 in)121
Longest dry spell (CDD)60 days193831 days121

Hottest day (TXx)

Hottest day (TXx) at Chapman by year The hottest day of the year at Chapman, 1904 to 2026. The record is 46.7 C (116.1 F) in 1936, marked on the chart; the median year is 40.6 C (105.1 F). 20304050192019401960198020002020Record: 46.7 C (116.1 F) in 1936
The hottest day of the year at Chapman, 1904 to 2026. The record is 46.7 C (116.1 F) in 1936, marked on the chart; the median year is 40.6 C (105.1 F).
Hottest day (TXx) at Chapman by year
YearHottest day (TXx)
190435.0 C (95.0 F)
190740.0 C (104.0 F)
190837.2 C (99.0 F)
190940.6 C (105.1 F)
191041.7 C (107.1 F)
191144.4 C (111.9 F)
191240.6 C (105.1 F)
191325.0 C (77.0 F)
191442.8 C (109.0 F)
191537.2 C (99.0 F)
191641.7 C (107.1 F)
191742.2 C (108.0 F)
191844.4 C (111.9 F)
191940.6 C (105.1 F)
192041.7 C (107.1 F)
192142.8 C (109.0 F)
192242.8 C (109.0 F)
192341.1 C (106.0 F)
192439.4 C (102.9 F)
192541.1 C (106.0 F)
192643.3 C (109.9 F)
192737.8 C (100.0 F)
192838.3 C (100.9 F)
192942.2 C (108.0 F)
193043.9 C (111.0 F)
193143.9 C (111.0 F)
193238.3 C (100.9 F)
193343.3 C (109.9 F)
193444.4 C (111.9 F)
193542.8 C (109.0 F)
193646.7 C (116.1 F)
193744.4 C (111.9 F)
193841.7 C (107.1 F)
193943.3 C (109.9 F)
194043.3 C (109.9 F)
194140.6 C (105.1 F)
194240.6 C (105.1 F)
194341.7 C (107.1 F)
194441.1 C (106.0 F)
194538.3 C (100.9 F)
194640.6 C (105.1 F)
194745.6 C (114.1 F)
194840.0 C (104.0 F)
194940.0 C (104.0 F)
195039.4 C (102.9 F)
195138.3 C (100.9 F)
195241.1 C (106.0 F)
195342.8 C (109.0 F)
195444.4 C (111.9 F)
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
1970n/a
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
2001n/a
2002n/a
2003n/a
2004n/a
2005n/a
2006n/a
2007n/a
2008n/a
200926.1 C (79.0 F)
201040.0 C (104.0 F)
201142.8 C (109.0 F)
201241.7 C (107.1 F)
201339.4 C (102.9 F)
201438.9 C (102.0 F)
201538.3 C (100.9 F)
201639.4 C (102.9 F)
201739.4 C (102.9 F)
201838.9 C (102.0 F)
201937.8 C (100.0 F)
202035.0 C (95.0 F)
202138.3 C (100.9 F)
202239.4 C (102.9 F)
202342.8 C (109.0 F)
202440.6 C (105.1 F)
202540.0 C (104.0 F)
202639.4 C (102.9 F)

Coldest night (TNn)

Coldest night (TNn) at Chapman by year The coldest night of the year at Chapman, 1904 to 2026. The record is -33.9 C (-29.0 F) in 1947, marked on the chart; the median year is -23.9 C (-11.0 F). -35-30-25-20-15192019401960198020002020Record: -33.9 C (-29.0 F) in 1947
The coldest night of the year at Chapman, 1904 to 2026. The record is -33.9 C (-29.0 F) in 1947, marked on the chart; the median year is -23.9 C (-11.0 F).
Coldest night (TNn) at Chapman by year
YearColdest night (TNn)
1904-19.4 C (-2.9 F)
1907-20.0 C (-4.0 F)
1908-17.8 C (0.0 F)
1909-26.1 C (-15.0 F)
1910-30.0 C (-22.0 F)
1911-26.7 C (-16.1 F)
1912-28.3 C (-18.9 F)
1913-26.1 C (-15.0 F)
1914-25.6 C (-14.1 F)
1915-28.3 C (-18.9 F)
1916-28.3 C (-18.9 F)
1917-25.6 C (-14.1 F)
1918-29.4 C (-20.9 F)
1919-29.4 C (-20.9 F)
1920-20.6 C (-5.1 F)
1921-17.8 C (0.0 F)
1922-19.4 C (-2.9 F)
1923-20.6 C (-5.1 F)
1924-32.2 C (-26.0 F)
1925-21.7 C (-7.1 F)
1926-22.8 C (-9.0 F)
1927-24.4 C (-11.9 F)
1928-26.1 C (-15.0 F)
1929-27.2 C (-17.0 F)
1930-30.6 C (-23.1 F)
1931-17.8 C (0.0 F)
1932-26.1 C (-15.0 F)
1933-28.9 C (-20.0 F)
1934-26.1 C (-15.0 F)
1935-21.7 C (-7.1 F)
1936-24.4 C (-11.9 F)
1937-20.0 C (-4.0 F)
1938-18.9 C (-2.0 F)
1939-22.2 C (-8.0 F)
1940-24.4 C (-11.9 F)
1941-18.3 C (-0.9 F)
1942-22.8 C (-9.0 F)
1943-30.0 C (-22.0 F)
1944-18.9 C (-2.0 F)
1945-26.1 C (-15.0 F)
1946-23.3 C (-9.9 F)
1947-33.9 C (-29.0 F)
1948-26.1 C (-15.0 F)
1949-22.8 C (-9.0 F)
1950-20.6 C (-5.1 F)
1951-27.8 C (-18.0 F)
1952-22.8 C (-9.0 F)
1953-20.0 C (-4.0 F)
1954-21.1 C (-6.0 F)
1955n/a
1956n/a
1957n/a
1958n/a
1959n/a
1960n/a
1961n/a
1962n/a
1963n/a
1964n/a
1965n/a
1966n/a
1967n/a
1968n/a
1969n/a
1970n/a
1971n/a
1972n/a
1973n/a
1974n/a
1975n/a
1976n/a
1977n/a
1978n/a
1979n/a
1980n/a
1981n/a
1982n/a
1983n/a
1984n/a
1985n/a
1986n/a
1987n/a
1988n/a
1989n/a
1990n/a
1991n/a
1992n/a
1993n/a
1994n/a
1995n/a
1996n/a
1997n/a
1998n/a
1999n/a
2000n/a
2001n/a
2002n/a
2003n/a
2004n/a
2005n/a
2006n/a
2007n/a
2008n/a
2009-23.9 C (-11.0 F)
2010-25.0 C (-13.0 F)
2011-27.8 C (-18.0 F)
2012-16.1 C (3.0 F)
2013-20.0 C (-4.0 F)
2014-23.9 C (-11.0 F)
2015-21.1 C (-6.0 F)
2016-23.9 C (-11.0 F)
2017-21.7 C (-7.1 F)
2018-22.2 C (-8.0 F)
2019-20.0 C (-4.0 F)
2020-16.7 C (1.9 F)
2021-29.4 C (-20.9 F)
2022-22.2 C (-8.0 F)
2023-15.0 C (5.0 F)
2024-25.6 C (-14.1 F)
2025-27.2 C (-17.0 F)
2026-26.1 C (-15.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Chapman by year The wettest day of the year at Chapman, 1904 to 2026. The record is 205.7 mm (8.1 in) in 1933, marked on the chart; the median year is 64.5 mm (2.5 in). 050100150200250192019401960198020002020Record: 205.7 mm (8.1 in) in 1933
The wettest day of the year at Chapman, 1904 to 2026. The record is 205.7 mm (8.1 in) in 1933, marked on the chart; the median year is 64.5 mm (2.5 in).
Wettest day (Rx1day) at Chapman by year
YearWettest day (Rx1day)
190448.8 mm (1.9 in)
190758.4 mm (2.3 in)
190858.4 mm (2.3 in)
190966.0 mm (2.6 in)
191055.9 mm (2.2 in)
191150.8 mm (2.0 in)
191257.2 mm (2.3 in)
191341.7 mm (1.6 in)
191454.9 mm (2.2 in)
191562.2 mm (2.4 in)
1916101.6 mm (4.0 in)
191742.4 mm (1.7 in)
191851.8 mm (2.0 in)
1919110.5 mm (4.4 in)
192055.9 mm (2.2 in)
192157.2 mm (2.3 in)
192268.6 mm (2.7 in)
192363.5 mm (2.5 in)
192476.2 mm (3.0 in)
192550.8 mm (2.0 in)
192650.8 mm (2.0 in)
192776.2 mm (3.0 in)
192878.7 mm (3.1 in)
1929109.2 mm (4.3 in)
1930105.4 mm (4.1 in)
193165.0 mm (2.6 in)
193282.6 mm (3.3 in)
1933205.7 mm (8.1 in)
193463.5 mm (2.5 in)
193588.9 mm (3.5 in)
193654.6 mm (2.1 in)
193750.8 mm (2.0 in)
1938143.5 mm (5.6 in)
193945.7 mm (1.8 in)
194051.6 mm (2.0 in)
1941112.5 mm (4.4 in)
194267.8 mm (2.7 in)
194374.4 mm (2.9 in)
194488.9 mm (3.5 in)
194563.5 mm (2.5 in)
194695.3 mm (3.8 in)
194742.4 mm (1.7 in)
1948139.7 mm (5.5 in)
194938.4 mm (1.5 in)
1950133.4 mm (5.3 in)
1951116.8 mm (4.6 in)
195295.3 mm (3.8 in)
195366.0 mm (2.6 in)
195448.3 mm (1.9 in)
195565.0 mm (2.6 in)
195656.9 mm (2.2 in)
195766.0 mm (2.6 in)
195844.5 mm (1.8 in)
195977.2 mm (3.0 in)
196074.7 mm (2.9 in)
1961108.0 mm (4.3 in)
196277.5 mm (3.1 in)
196352.1 mm (2.1 in)
196453.3 mm (2.1 in)
196565.0 mm (2.6 in)
1966124.5 mm (4.9 in)
1967124.5 mm (4.9 in)
196850.8 mm (2.0 in)
196969.1 mm (2.7 in)
197048.3 mm (1.9 in)
1971135.1 mm (5.3 in)
1972180.3 mm (7.1 in)
1973109.2 mm (4.3 in)
197448.3 mm (1.9 in)
197552.6 mm (2.1 in)
197653.3 mm (2.1 in)
1977129.5 mm (5.1 in)
197878.7 mm (3.1 in)
197991.4 mm (3.6 in)
198058.4 mm (2.3 in)
198153.3 mm (2.1 in)
198277.5 mm (3.1 in)
198353.3 mm (2.1 in)
198482.6 mm (3.3 in)
198573.7 mm (2.9 in)
198653.3 mm (2.1 in)
198764.8 mm (2.6 in)
198833.0 mm (1.3 in)
198953.3 mm (2.1 in)
199081.3 mm (3.2 in)
199154.6 mm (2.1 in)
199255.9 mm (2.2 in)
199377.5 mm (3.1 in)
199432.8 mm (1.3 in)
199540.6 mm (1.6 in)
199679.2 mm (3.1 in)
199754.6 mm (2.1 in)
1998105.9 mm (4.2 in)
1999101.1 mm (4.0 in)
200064.5 mm (2.5 in)
200162.5 mm (2.5 in)
2002102.4 mm (4.0 in)
200398.6 mm (3.9 in)
200413.2 mm (0.5 in)
200543.2 mm (1.7 in)
200657.9 mm (2.3 in)
200750.8 mm (2.0 in)
200850.8 mm (2.0 in)
200925.4 mm (1.0 in)
201043.2 mm (1.7 in)
201178.2 mm (3.1 in)
201269.9 mm (2.8 in)
201388.9 mm (3.5 in)
201462.2 mm (2.4 in)
201564.0 mm (2.5 in)
201667.3 mm (2.6 in)
201746.2 mm (1.8 in)
201875.7 mm (3.0 in)
201954.6 mm (2.1 in)
202080.0 mm (3.1 in)
202176.2 mm (3.0 in)
202252.3 mm (2.1 in)
202361.0 mm (2.4 in)
202490.9 mm (3.6 in)
202558.4 mm (2.3 in)
202678.7 mm (3.1 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Chapman by year The wettest five days of the year at Chapman, 1904 to 2026. The record is 303.7 mm (12.0 in) in 1951, marked on the chart; the median year is 96.7 mm (3.8 in). 0100200300400192019401960198020002020Record: 303.7 mm (12.0 in) in 1951
The wettest five days of the year at Chapman, 1904 to 2026. The record is 303.7 mm (12.0 in) in 1951, marked on the chart; the median year is 96.7 mm (3.8 in).
Wettest five days (Rx5day) at Chapman by year
YearWettest five days (Rx5day)
190492.2 mm (3.6 in)
190798.3 mm (3.9 in)
1908101.9 mm (4.0 in)
1909146.6 mm (5.8 in)
191094.9 mm (3.7 in)
1911125.4 mm (4.9 in)
191281.3 mm (3.2 in)
191373.2 mm (2.9 in)
191477.2 mm (3.0 in)
1915116.8 mm (4.6 in)
1916132.3 mm (5.2 in)
191774.4 mm (2.9 in)
191894.6 mm (3.7 in)
1919111.8 mm (4.4 in)
192064.8 mm (2.6 in)
1921110.5 mm (4.4 in)
192296.0 mm (3.8 in)
192391.0 mm (3.6 in)
192488.9 mm (3.5 in)
192573.4 mm (2.9 in)
192686.4 mm (3.4 in)
1927166.4 mm (6.6 in)
1928108.0 mm (4.3 in)
1929124.2 mm (4.9 in)
1930118.1 mm (4.6 in)
193189.4 mm (3.5 in)
193282.6 mm (3.3 in)
1933205.7 mm (8.1 in)
193495.3 mm (3.8 in)
1935116.9 mm (4.6 in)
193697.8 mm (3.9 in)
193765.3 mm (2.6 in)
1938146.0 mm (5.7 in)
193985.4 mm (3.4 in)
1940105.4 mm (4.1 in)
1941165.8 mm (6.5 in)
194293.2 mm (3.7 in)
194397.1 mm (3.8 in)
1944151.4 mm (6.0 in)
1945118.4 mm (4.7 in)
1946108.0 mm (4.3 in)
194762.8 mm (2.5 in)
1948206.5 mm (8.1 in)
194954.2 mm (2.1 in)
1950146.2 mm (5.8 in)
1951303.7 mm (12.0 in)
1952122.0 mm (4.8 in)
195368.5 mm (2.7 in)
195487.2 mm (3.4 in)
195579.0 mm (3.1 in)
195687.1 mm (3.4 in)
195789.6 mm (3.5 in)
195856.6 mm (2.2 in)
1959106.6 mm (4.2 in)
196077.2 mm (3.0 in)
1961119.6 mm (4.7 in)
1962132.1 mm (5.2 in)
196364.3 mm (2.5 in)
196490.9 mm (3.6 in)
1965119.8 mm (4.7 in)
1966169.9 mm (6.7 in)
1967175.3 mm (6.9 in)
196875.5 mm (3.0 in)
196986.4 mm (3.4 in)
1970125.2 mm (4.9 in)
1971138.9 mm (5.5 in)
1972198.9 mm (7.8 in)
1973156.3 mm (6.2 in)
197471.9 mm (2.8 in)
197572.2 mm (2.8 in)
1976123.2 mm (4.9 in)
1977213.4 mm (8.4 in)
1978130.3 mm (5.1 in)
1979135.9 mm (5.4 in)
198073.6 mm (2.9 in)
198180.5 mm (3.2 in)
198280.5 mm (3.2 in)
198372.9 mm (2.9 in)
198499.1 mm (3.9 in)
198585.6 mm (3.4 in)
198680.5 mm (3.2 in)
198783.3 mm (3.3 in)
198833.0 mm (1.3 in)
198969.8 mm (2.7 in)
1990108.5 mm (4.3 in)
199184.1 mm (3.3 in)
1992130.1 mm (5.1 in)
1993157.0 mm (6.2 in)
199456.2 mm (2.2 in)
199560.4 mm (2.4 in)
199681.5 mm (3.2 in)
1997103.0 mm (4.1 in)
1998168.9 mm (6.6 in)
1999122.2 mm (4.8 in)
200096.7 mm (3.8 in)
200195.6 mm (3.8 in)
2002111.5 mm (4.4 in)
2003168.1 mm (6.6 in)
200413.2 mm (0.5 in)
200546.0 mm (1.8 in)
200662.5 mm (2.5 in)
200758.4 mm (2.3 in)
2008116.8 mm (4.6 in)
200940.3 mm (1.6 in)
201074.6 mm (2.9 in)
201192.9 mm (3.7 in)
2012115.1 mm (4.5 in)
2013152.4 mm (6.0 in)
2014105.4 mm (4.1 in)
201580.0 mm (3.1 in)
2016164.6 mm (6.5 in)
201774.9 mm (2.9 in)
2018134.3 mm (5.3 in)
201992.0 mm (3.6 in)
2020110.0 mm (4.3 in)
2021139.7 mm (5.5 in)
202280.5 mm (3.2 in)
2023102.9 mm (4.1 in)
2024100.6 mm (4.0 in)
202585.6 mm (3.4 in)
2026163.0 mm (6.4 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Chapman by year The longest dry spell of the year at Chapman, 1904 to 2026. The record is 60 days in 1938, marked on the chart; the median year is 31 days. 0204060192019401960198020002020Record: 60 days in 1938
The longest dry spell of the year at Chapman, 1904 to 2026. The record is 60 days in 1938, marked on the chart; the median year is 31 days.
Longest dry spell (CDD) at Chapman by year
YearLongest dry spell (CDD)
190447 days
190728 days
190828 days
190924 days
191043 days
191127 days
191221 days
191317 days
191428 days
191525 days
191631 days
191751 days
191833 days
191928 days
192030 days
192146 days
192244 days
192340 days
192435 days
192547 days
192629 days
192726 days
192836 days
192940 days
193058 days
193146 days
193224 days
193336 days
193438 days
193527 days
193640 days
193725 days
193860 days
193943 days
194020 days
194118 days
194213 days
194336 days
194429 days
194525 days
194629 days
194725 days
194827 days
194928 days
195057 days
195128 days
195249 days
195330 days
195450 days
195533 days
195638 days
195722 days
195840 days
195943 days
196024 days
196135 days
196240 days
196343 days
196430 days
196527 days
196647 days
196745 days
196836 days
196927 days
197032 days
197136 days
197231 days
197323 days
197442 days
197551 days
197634 days
197731 days
197824 days
197936 days
198022 days
198129 days
198219 days
198333 days
198423 days
198523 days
198633 days
198722 days
198834 days
198947 days
199032 days
199139 days
199220 days
199326 days
199422 days
199544 days
199632 days
199733 days
199825 days
199955 days
200029 days
200129 days
200241 days
200325 days
200412 days
200532 days
200619 days
200754 days
200847 days
200913 days
201043 days
201120 days
201233 days
201345 days
201442 days
201534 days
201638 days
201733 days
201823 days
201914 days
202025 days
202125 days
202220 days
202323 days
202428 days
202526 days
202625 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

52 years with a frost

Across 52 years with a frost, the median last spring frost at Chapman falls on 25 April and the median first autumn frost on 12 October, which leaves a median of 170 days between them.

Fitted over all years, the growing season changes by +1.9 days per decade at this station.

Frost dates and growing season at Chapman
MeasureMedian, all yearsEarliest periodRecent period (1933 to 2025)Recent against earliestFitted trend
Last spring frost25 Apriln/a22 Apriln/a-1.1 days per decade
First autumn frost12 Octobern/a14 Octobern/a+0.8 days per decade
Growing days170 daysn/a177 daysn/a+1.9 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

99 years, 1907 to 2025

A day with at least 67.1 mm (2.6 in) of rain is expected about once in 2 years. A day with at least 196.0 mm (7.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Chapman: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years67.1 mm (2.6 in)
5 years91.4 mm (3.6 in)
10 years110.9 mm (4.4 in)
25 years140.4 mm (5.5 in)
50 years166.3 mm (6.5 in)
100 years196.0 mm (7.7 in)Longer than the 99 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, 99 years of values from 1907 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: 205.7 mm (8.1 in) in 1933; 180.3 mm (7.1 in) in 1972; 143.5 mm (5.6 in) in 1938.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

  • Data for Chapman standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Chapman 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 (2026-10-16).