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Wiseman Weather Records (USC00509869)

Record envelope, standing records and threshold days for Wiseman (USC00509869), Alaska, United States, with 109 years of record.

Key Facts for Wiseman

  • Wiseman (USC00509869) is a weather station in Alaska, United States at 67.41 latitude and -150.11 longitude, 360 m (1,181 ft) above sea level.
  • The station reports from 1918 to 2026, 109 years of record.
  • 1,464 records set at Wiseman still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Wiseman set a daily record low maximum temperature of -3.3 C (26.1 F) on 4 October 2026 (provisional).

Provisional Records

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

About the Station

  • Location: Alaska, United States, 67.41 latitude, -150.11 longitude.
  • Elevation: 360 m (1,181 ft).
  • Period of record: 1918 to 2026, 109 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

10 days at or beyond a record
Daily record high and record low at Wiseman, with 2026 drawn through them The band shows the record high and record low for each calendar day at Wiseman. The lines show the 2026 daily maximum and minimum. 10 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -60-40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Wiseman. The lines show the 2026 daily maximum and minimum. 10 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Wiseman, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan2.2 C (36.0 F)-53.9 C (-65.0 F)-3.3 C (26.1 F)-46.7 C (-52.1 F)
Feb4.4 C (39.9 F)-53.9 C (-65.0 F)-10.0 C (14.0 F)-43.9 C (-47.0 F)
Mar9.4 C (48.9 F)-50.0 C (-58.0 F)-2.8 C (27.0 F)-41.7 C (-43.1 F)
Apr20.0 C (68.0 F)-39.4 C (-38.9 F)8.9 C (48.0 F)-27.2 C (-17.0 F)
May26.7 C (80.1 F)-23.3 C (-9.9 F)15.6 C (60.1 F)-5.0 C (23.0 F)
Jun31.1 C (88.0 F)-6.7 C (19.9 F)26.7 C (80.1 F)-2.2 C (28.0 F)
Jul32.2 C (90.0 F)-3.9 C (25.0 F)27.8 C (82.0 F)0.6 C (33.1 F)
Aug30.0 C (86.0 F)-7.2 C (19.0 F)23.9 C (75.0 F)-2.2 C (28.0 F)
Sep22.2 C (72.0 F)-18.9 C (-2.0 F)13.3 C (55.9 F)-5.0 C (23.0 F)
Oct13.3 C (55.9 F)-37.2 C (-35.0 F)0.6 C (33.1 F)-16.1 C (3.0 F)
Nov3.3 C (37.9 F)-45.6 C (-50.1 F)n/an/a
Dec2.2 C (36.0 F)-50.0 C (-58.0 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Wiseman by the year they were set 1,464 records at Wiseman still stand. 1940 holds the most, with 66. 0204060801918: 71919: 191920: 571921: 121936: 371937: 471938: 471939: 351940: 661941: 431942: 161943: 451944: 381945: 271946: 391947: 311948: 481949: 551950: 191951: 401952: 181996: 151997: 321998: 301999: 382000: 222001: 232002: 372003: 322004: 462005: 302006: 252007: 372008: 312009: 232010: 432011: 22012: 92013: 82014: 62015: 22016: 62018: 112019: 202020: 242021: 332022: 122023: 362024: 302025: 412026: 14191819381944195019992005201120182024
1,464 records at Wiseman still stand. 1940 holds the most, with 66.
Standing records at Wiseman by the year they were set
Year setStanding records
19187
191919
192057
192112
193637
193747
193847
193935
194066
194143
194216
194345
194438
194527
194639
194731
194848
194955
195019
195140
195218
199615
199732
199830
199938
200022
200123
200237
200332
200446
200530
200625
200737
200831
200923
201043
20112
20129
20138
20146
20152
20166
201811
201920
202024
202133
202212
202336
202430
202541
202614

All-Time Record Progression

2 new records
When Wiseman set new all-time records 2 all-time records were set at Wiseman between 6 July 2025 and 26 August 2025. Each dot is a new record. Record high maximum temperatureRecord daily precipitation6 July 2025: Record high maximum temperature 32.2 C (90.0 F)26 August 2025: Record daily precipitation 94.0 mm (3.7 in)2025
2 all-time records were set at Wiseman between 6 July 2025 and 26 August 2025. Each dot is a new record.
When Wiseman set new all-time records
DateKindDetail
2025-07-06Record high maximum temperatureRecord high maximum temperature 32.2 C (90.0 F)
2025-08-26Record daily precipitationRecord daily precipitation 94.0 mm (3.7 in)

Wettest Day of Each Month

Aug: 94.0 mm (3.7 in)
Record daily precipitation for each month at Wiseman The wettest day on record for each calendar month at Wiseman. The most was 94.0 mm (3.7 in) on 26 August 2025. 0255075100 Jan: 35.6 mm (1.4 in), 23 January 1999 Jan Feb: 50.3 mm (2.0 in), 7 February 2003 Feb Mar: 29.7 mm (1.2 in), 28 March 1948 Mar Apr: 22.1 mm (0.9 in), 12 April 2024 Apr May: 38.1 mm (1.5 in), 31 May 1999 May Jun: 43.2 mm (1.7 in), 2 June 1999 Jun Jul: 40.1 mm (1.6 in), 21 July 1940 Jul Aug: 94.0 mm (3.7 in), 26 August 2025 Aug Sep: 52.1 mm (2.1 in), 1 September 1938 Sep Oct: 40.1 mm (1.6 in), 7 October 2022 Oct Nov: 40.6 mm (1.6 in), 10 November 2001 Nov Dec: 27.9 mm (1.1 in), 22 December 2004 Dec
The wettest day on record for each calendar month at Wiseman. The most was 94.0 mm (3.7 in) on 26 August 2025.
Record daily precipitation for each month at Wiseman
MonthRecord daily precipitation (mm)Date
Jan35.6 mm (1.4 in)23 January 1999
Feb50.3 mm (2.0 in)7 February 2003
Mar29.7 mm (1.2 in)28 March 1948
Apr22.1 mm (0.9 in)12 April 2024
May38.1 mm (1.5 in)31 May 1999
Jun43.2 mm (1.7 in)2 June 1999
Jul40.1 mm (1.6 in)21 July 1940
Aug94.0 mm (3.7 in)26 August 2025
Sep52.1 mm (2.1 in)1 September 1938
Oct40.1 mm (1.6 in)7 October 2022
Nov40.6 mm (1.6 in)10 November 2001
Dec27.9 mm (1.1 in)22 December 2004

Period of Record Coverage

1919 to 2026
Days with data per year at Wiseman 50 years of record at Wiseman, 1919 to 2026. 21 years have data for under 90 percent of days and are left out of rankings: 1919, 1921, 1943, 1944, 1945, 1946, 1952, 1996 and others. 1919: 57 of 365 days1920: 352 of 366 days1921: 176 of 365 days1936: 363 of 366 days1937: 363 of 365 days1938: 340 of 365 days1939: 365 of 365 days1940: 361 of 366 days1941: 353 of 365 days1942: 329 of 365 days1943: 286 of 365 days1944: 270 of 366 days1945: 299 of 365 days1946: 323 of 365 days1947: 350 of 365 days1948: 363 of 366 days1949: 363 of 365 days1950: 365 of 365 days1951: 364 of 365 days1952: 235 of 366 days1996: 136 of 366 days1997: 359 of 365 days1998: 347 of 365 days1999: 354 of 365 days2000: 355 of 366 days2001: 351 of 365 days2002: 347 of 365 days2003: 325 of 365 days2004: 353 of 366 days2005: 316 of 365 days2006: 334 of 365 days2007: 283 of 365 days2008: 344 of 366 days2009: 327 of 365 days2010: 319 of 365 days2011: 46 of 365 days2012: 112 of 366 days2013: 153 of 365 days2014: 109 of 365 days2015: 27 of 365 days2016: 64 of 366 days2018: 190 of 365 days2019: 358 of 365 days2020: 361 of 366 days2021: 365 of 365 days2022: 365 of 365 days2023: 363 of 365 days2024: 366 of 366 days2025: 363 of 365 days2026: 283 of 365 days192019401950200020102020
50 years of record at Wiseman, 1919 to 2026. 21 years have data for under 90 percent of days and are left out of rankings: 1919, 1921, 1943, 1944, 1945, 1946, 1952, 1996 and others.
Days with data per year at Wiseman
YearDays with dataShare of yearComplete
19195716%No
192035296%Yes
192117648%No
193636399%Yes
193736399%Yes
193834093%Yes
1939365100%Yes
194036199%Yes
194135397%Yes
194232990%Yes
194328678%No
194427074%No
194529982%No
194632388%No
194735096%Yes
194836399%Yes
194936399%Yes
1950365100%Yes
1951364100%Yes
195223564%No
199613637%No
199735998%Yes
199834795%Yes
199935497%Yes
200035597%Yes
200135196%Yes
200234795%Yes
200332589%No
200435396%Yes
200531687%No
200633492%Yes
200728378%No
200834494%Yes
200932790%No
201031987%No
20114613%No
201211231%No
201315342%No
201410930%No
2015277%No
20166417%No
201819052%No
201935898%Yes
202036199%Yes
2021365100%Yes
2022365100%Yes
202336399%Yes
2024366100%Yes
202536399%Yes
202628378%No

Latest Records

20
Latest records at Wiseman
DateStationRecordValueBeat old record byOld record stoodSignificance
4 October 2026Wiseman, USdaily low max (Provisional)-3.3 C (26.1 F)0.5 C (0.9 F)19 years15 of 100 (Routine)
3 October 2026Wiseman, USdaily low max (Provisional)-5.0 C (23.0 F)3.3 C (5.9 F)105 years45 of 100 (Notable)
28 September 2026Wiseman, USdaily high max (Tie, Provisional)10.6 C (51.1 F)tie89 years9 of 100 (Routine)
4 September 2026Wiseman, USdaily low max (Tie, Provisional)5.6 C (42.1 F)tie81 years8 of 100 (Routine)
3 September 2026Wiseman, USdaily low max (Tie, Provisional)6.7 C (44.1 F)tie81 years8 of 100 (Routine)
2 September 2026Wiseman, USdaily low max (Provisional)3.3 C (37.9 F)2.8 C (5.0 F)20 years21 of 100 (Routine)
29 August 2026Wiseman, USdaily rain (Provisional)30.0 mm (1.2 in)2.6 mm (0.10 in)75 years35 of 100 (Notable)
29 August 2026Wiseman, USdaily low max (Provisional)7.2 C (45.0 F)0.6 C (1.1 F)4 years12 of 100 (Routine)
27 August 2026Wiseman, USdaily low max (Tie, Provisional)8.9 C (48.0 F)tie80 years8 of 100 (Routine)
25 August 2026Wiseman, USdaily high min (Provisional)8.3 C (46.9 F)1.1 C (2.0 F)84 years37 of 100 (Notable)
20 August 2026Wiseman, USdaily high min (Provisional)10.6 C (51.1 F)0.6 C (1.1 F)105 years41 of 100 (Notable)
19 August 2026Wiseman, USdaily high min (Tie, Provisional)8.9 C (48.0 F)tie3 years2 of 100 (Routine)
18 August 2026Wiseman, USdaily rain (Provisional)21.6 mm (0.9 in)8.4 mm (0.33 in)4 years20 of 100 (Routine)
17 August 2026Wiseman, USdaily high min (Provisional)12.8 C (55.0 F)1.1 C (2.0 F)16 years16 of 100 (Routine)
27 July 2026Wiseman, USdaily low min0.6 C (33.1 F)0.5 C (0.9 F)24 years18 of 100 (Routine)
25 July 2026Wiseman, USdaily low min (Tie)1.1 C (34.0 F)tie27 years4 of 100 (Routine)
30 June 2026Wiseman, USdaily low max (Tie)10.0 C (50.0 F)tie4 years2 of 100 (Routine)
29 June 2026Wiseman, USdaily rain28.2 mm (1.1 in)14.2 mm (0.6 in)80 years62 of 100 (Major)
28 June 2026Wiseman, USdaily rain7.6 mm (0.30 in)1.0 mm (0.04 in)77 years20 of 100 (Routine)
17 June 2026Wiseman, USdaily rain7.1 mm (0.28 in)0.2 mm (0.01 in)27 years18 of 100 (Routine)

Climate Trend

29 complete years, 1920 to 2025
Annual mean temperature at Wiseman as warming stripes, 1920 to 2025 One stripe for each of 29 complete years at Wiseman, 1920 to 2025. Blue stripes are years cooler than the station's own mean of -5.4 C (22.3 F); red stripes are warmer. The coolest year was 1948, at -7.6 C (18.3 F), and the warmest was 1940, at -3.0 C (26.6 F). The strongest colour marks a difference of 2.5 C (4.5 F). 1920: -7.2 C, -1.8 C from the station mean1936: -6.1 C, -0.7 C from the station mean1937: -5.5 C, -0.1 C from the station mean1939: -5.6 C, -0.2 C from the station mean1940: -3.0 C, +2.4 C from the station mean1941: -5.2 C, +0.2 C from the station mean1942: -4.7 C, +0.7 C from the station mean1943: -4.2 C, +1.2 C from the station mean1947: -4.8 C, +0.6 C from the station mean1948: -7.6 C, -2.2 C from the station mean1949: -5.6 C, -0.2 C from the station mean1950: -5.8 C, -0.4 C from the station mean1951: -7.0 C, -1.6 C from the station mean1997: -4.8 C, +0.6 C from the station mean1998: -3.9 C, +1.6 C from the station mean1999: -7.0 C, -1.6 C from the station mean2000: -4.7 C, +0.7 C from the station mean2001: -4.7 C, +0.7 C from the station mean2002: -4.5 C, +0.9 C from the station mean2004: -5.7 C, -0.3 C from the station mean2006: -6.2 C, -0.8 C from the station mean2008: -6.6 C, -1.2 C from the station mean2019: -4.1 C, +1.3 C from the station mean2020: -6.1 C, -0.7 C from the station mean2021: -6.7 C, -1.3 C from the station mean2022: -5.3 C, +0.1 C from the station mean2023: -4.8 C, +0.6 C from the station mean2024: -5.0 C, +0.4 C from the station mean2025: -4.3 C, +1.1 C from the station mean19201930194019501960197019801990200020102020
One stripe for each of 29 complete years at Wiseman, 1920 to 2025. Blue stripes are years cooler than the station's own mean of -5.4 C (22.3 F); red stripes are warmer. The coolest year was 1948, at -7.6 C (18.3 F), and the warmest was 1940, at -3.0 C (26.6 F). The strongest colour marks a difference of 2.5 C (4.5 F).
Annual mean temperature at Wiseman as warming stripes, 1920 to 2025
YearAnnual mean temperatureDifference from the station mean
1920-7.2 C-1.81 C
1936-6.1 C-0.73 C
1937-5.5 C-0.11 C
1939-5.6 C-0.23 C
1940-3.0 C+2.44 C
1941-5.2 C+0.23 C
1942-4.7 C+0.70 C
1943-4.2 C+1.19 C
1947-4.8 C+0.62 C
1948-7.6 C-2.18 C
1949-5.6 C-0.21 C
1950-5.8 C-0.39 C
1951-7.0 C-1.59 C
1997-4.8 C+0.61 C
1998-3.9 C+1.56 C
1999-7.0 C-1.56 C
2000-4.7 C+0.69 C
2001-4.7 C+0.67 C
2002-4.5 C+0.94 C
2004-5.7 C-0.29 C
2006-6.2 C-0.76 C
2008-6.6 C-1.21 C
2019-4.1 C+1.32 C
2020-6.1 C-0.67 C
2021-6.7 C-1.30 C
2022-5.3 C+0.10 C
2023-4.8 C+0.64 C
2024-5.0 C+0.40 C
2025-4.3 C+1.07 C

This station does not have enough complete years (30 are needed) to fit a temperature trend.

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

1918 to 2026
Yearly extremes at Wiseman: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)32.2 C (90.0 F)202527.8 C (82.0 F)50
Coldest night (TNn)-53.9 C (-65.0 F)1947-46.7 C (-52.1 F)51
Wettest day (Rx1day)94.0 mm (3.7 in)202525.4 mm (1.0 in)51
Wettest five days (Rx5day)126.2 mm (5.0 in)202540.6 mm (1.6 in)51
Longest dry spell (CDD)90 days194138 days51

Hottest day (TXx)

Hottest day (TXx) at Wiseman by year The hottest day of the year at Wiseman, 1918 to 2026. The record is 32.2 C (90.0 F) in 2025, marked on the chart; the median year is 27.8 C (82.0 F). 010203040192019401960198020002020Record: 32.2 C (90.0 F) in 2025
The hottest day of the year at Wiseman, 1918 to 2026. The record is 32.2 C (90.0 F) in 2025, marked on the chart; the median year is 27.8 C (82.0 F).
Hottest day (TXx) at Wiseman by year
YearHottest day (TXx)
1918n/a
19190.0 C (32.0 F)
192030.0 C (86.0 F)
192125.6 C (78.1 F)
193629.4 C (84.9 F)
193731.1 C (88.0 F)
193830.6 C (87.1 F)
193931.7 C (89.1 F)
194031.1 C (88.0 F)
194127.2 C (81.0 F)
194227.8 C (82.0 F)
194328.3 C (82.9 F)
194427.8 C (82.0 F)
194524.4 C (75.9 F)
194630.0 C (86.0 F)
194726.7 C (80.1 F)
194827.8 C (82.0 F)
194927.2 C (81.0 F)
195028.3 C (82.9 F)
195127.2 C (81.0 F)
195226.1 C (79.0 F)
199620.0 C (68.0 F)
199727.8 C (82.0 F)
199828.9 C (84.0 F)
199930.6 C (87.1 F)
200027.2 C (81.0 F)
200127.2 C (81.0 F)
200229.4 C (84.9 F)
200326.7 C (80.1 F)
200429.4 C (84.9 F)
200530.0 C (86.0 F)
200625.6 C (78.1 F)
200729.4 C (84.9 F)
200828.3 C (82.9 F)
200927.8 C (82.0 F)
201027.8 C (82.0 F)
20111.7 C (35.1 F)
201227.8 C (82.0 F)
201328.3 C (82.9 F)
201423.9 C (75.0 F)
20157.2 C (45.0 F)
201611.1 C (52.0 F)
201827.2 C (81.0 F)
201931.1 C (88.0 F)
202026.1 C (79.0 F)
202126.7 C (80.1 F)
202228.3 C (82.9 F)
202328.9 C (84.0 F)
202429.4 C (84.9 F)
202532.2 C (90.0 F)
202627.8 C (82.0 F)

Coldest night (TNn)

Coldest night (TNn) at Wiseman by year The coldest night of the year at Wiseman, 1918 to 2026. The record is -53.9 C (-65.0 F) in 1947, marked on the chart; the median year is -46.7 C (-52.1 F). -55-50-45-40-35-30192019401960198020002020Record: -53.9 C (-65.0 F) in 1947
The coldest night of the year at Wiseman, 1918 to 2026. The record is -53.9 C (-65.0 F) in 1947, marked on the chart; the median year is -46.7 C (-52.1 F).
Coldest night (TNn) at Wiseman by year
YearColdest night (TNn)
1918-50.0 C (-58.0 F)
1919-52.2 C (-62.0 F)
1920-52.2 C (-62.0 F)
1921-48.9 C (-56.0 F)
1936-43.9 C (-47.0 F)
1937-47.8 C (-54.0 F)
1938-48.3 C (-54.9 F)
1939-44.4 C (-47.9 F)
1940-46.7 C (-52.1 F)
1941-45.0 C (-49.0 F)
1942-42.2 C (-44.0 F)
1943-50.6 C (-59.1 F)
1944-47.2 C (-53.0 F)
1945-51.7 C (-61.1 F)
1946-48.3 C (-54.9 F)
1947-53.9 C (-65.0 F)
1948-46.7 C (-52.1 F)
1949-47.2 C (-53.0 F)
1950-46.1 C (-51.0 F)
1951-50.0 C (-58.0 F)
1952-48.9 C (-56.0 F)
1996-37.2 C (-35.0 F)
1997-50.0 C (-58.0 F)
1998-45.6 C (-50.1 F)
1999-53.9 C (-65.0 F)
2000-47.2 C (-53.0 F)
2001-42.8 C (-45.0 F)
2002-45.0 C (-49.0 F)
2003-46.7 C (-52.1 F)
2004-49.4 C (-56.9 F)
2005-51.7 C (-61.1 F)
2006-47.2 C (-53.0 F)
2007-45.6 C (-50.1 F)
2008-47.2 C (-53.0 F)
2009-44.4 C (-47.9 F)
2010-44.4 C (-47.9 F)
2011-51.7 C (-61.1 F)
2012-50.0 C (-58.0 F)
2013-45.6 C (-50.1 F)
2014-40.6 C (-41.1 F)
2015-34.4 C (-29.9 F)
2016-41.1 C (-42.0 F)
2018-36.1 C (-33.0 F)
2019-46.7 C (-52.1 F)
2020-46.1 C (-51.0 F)
2021-43.9 C (-47.0 F)
2022-42.2 C (-44.0 F)
2023-42.2 C (-44.0 F)
2024-47.2 C (-53.0 F)
2025-46.7 C (-52.1 F)
2026-46.7 C (-52.1 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Wiseman by year The wettest day of the year at Wiseman, 1918 to 2026. The record is 94.0 mm (3.7 in) in 2025, marked on the chart; the median year is 25.4 mm (1.0 in). 0255075100192019401960198020002020Record: 94.0 mm (3.7 in) in 2025
The wettest day of the year at Wiseman, 1918 to 2026. The record is 94.0 mm (3.7 in) in 2025, marked on the chart; the median year is 25.4 mm (1.0 in).
Wettest day (Rx1day) at Wiseman by year
YearWettest day (Rx1day)
19188.1 mm (0.32 in)
191910.9 mm (0.4 in)
192015.2 mm (0.6 in)
19215.6 mm (0.22 in)
193623.9 mm (0.9 in)
193720.3 mm (0.8 in)
193852.1 mm (2.1 in)
193918.5 mm (0.7 in)
194040.1 mm (1.6 in)
194123.4 mm (0.9 in)
194214.7 mm (0.6 in)
194314.0 mm (0.6 in)
194450.5 mm (2.0 in)
194520.8 mm (0.8 in)
194632.0 mm (1.3 in)
194737.6 mm (1.5 in)
194829.7 mm (1.2 in)
194921.1 mm (0.8 in)
195024.9 mm (1.0 in)
195130.5 mm (1.2 in)
195226.4 mm (1.0 in)
199629.2 mm (1.1 in)
199725.7 mm (1.0 in)
199836.8 mm (1.4 in)
199943.2 mm (1.7 in)
200030.5 mm (1.2 in)
200140.6 mm (1.6 in)
200221.3 mm (0.8 in)
200350.3 mm (2.0 in)
200448.3 mm (1.9 in)
200515.2 mm (0.6 in)
200622.9 mm (0.9 in)
200717.3 mm (0.7 in)
200812.7 mm (0.5 in)
200922.9 mm (0.9 in)
201024.9 mm (1.0 in)
20117.1 mm (0.28 in)
201214.2 mm (0.6 in)
201323.6 mm (0.9 in)
201430.5 mm (1.2 in)
201520.3 mm (0.8 in)
201645.7 mm (1.8 in)
201820.3 mm (0.8 in)
201938.1 mm (1.5 in)
202027.4 mm (1.1 in)
202125.4 mm (1.0 in)
202240.1 mm (1.6 in)
202333.8 mm (1.3 in)
202437.6 mm (1.5 in)
202594.0 mm (3.7 in)
202630.0 mm (1.2 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Wiseman by year The wettest five days of the year at Wiseman, 1918 to 2026. The record is 126.2 mm (5.0 in) in 2025, marked on the chart; the median year is 40.6 mm (1.6 in). 050100150192019401960198020002020Record: 126.2 mm (5.0 in) in 2025
The wettest five days of the year at Wiseman, 1918 to 2026. The record is 126.2 mm (5.0 in) in 2025, marked on the chart; the median year is 40.6 mm (1.6 in).
Wettest five days (Rx5day) at Wiseman by year
YearWettest five days (Rx5day)
191811.9 mm (0.5 in)
191921.3 mm (0.8 in)
192025.8 mm (1.0 in)
19215.6 mm (0.22 in)
193626.2 mm (1.0 in)
193730.4 mm (1.2 in)
193888.9 mm (3.5 in)
193935.0 mm (1.4 in)
194062.7 mm (2.5 in)
194125.4 mm (1.0 in)
194240.3 mm (1.6 in)
194339.6 mm (1.6 in)
194497.0 mm (3.8 in)
194546.7 mm (1.8 in)
194672.3 mm (2.8 in)
194740.6 mm (1.6 in)
194840.4 mm (1.6 in)
194929.3 mm (1.2 in)
195046.2 mm (1.8 in)
195176.0 mm (3.0 in)
195236.3 mm (1.4 in)
199629.2 mm (1.1 in)
199745.3 mm (1.8 in)
199862.2 mm (2.4 in)
199983.9 mm (3.3 in)
200094.3 mm (3.7 in)
200149.8 mm (2.0 in)
200247.4 mm (1.9 in)
200374.4 mm (2.9 in)
200490.5 mm (3.6 in)
200535.3 mm (1.4 in)
200629.0 mm (1.1 in)
200732.3 mm (1.3 in)
200827.9 mm (1.1 in)
200945.7 mm (1.8 in)
201087.2 mm (3.4 in)
201117.2 mm (0.7 in)
201233.1 mm (1.3 in)
201347.7 mm (1.9 in)
201430.5 mm (1.2 in)
201524.1 mm (0.9 in)
201645.7 mm (1.8 in)
201840.5 mm (1.6 in)
201951.5 mm (2.0 in)
202035.8 mm (1.4 in)
202139.0 mm (1.5 in)
202247.6 mm (1.9 in)
202373.6 mm (2.9 in)
202481.2 mm (3.2 in)
2025126.2 mm (5.0 in)
202666.1 mm (2.6 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Wiseman by year The longest dry spell of the year at Wiseman, 1918 to 2026. The record is 90 days in 1941, marked on the chart; the median year is 38 days. 0255075100192019401960198020002020Record: 90 days in 1941
The longest dry spell of the year at Wiseman, 1918 to 2026. The record is 90 days in 1941, marked on the chart; the median year is 38 days.
Longest dry spell (CDD) at Wiseman by year
YearLongest dry spell (CDD)
191812 days
191945 days
192050 days
192155 days
193644 days
193783 days
193838 days
193944 days
194063 days
194190 days
194259 days
194362 days
194446 days
194529 days
194635 days
194738 days
194845 days
194930 days
195062 days
195134 days
195267 days
199620 days
199783 days
199835 days
199951 days
200029 days
200125 days
200242 days
200326 days
200454 days
200542 days
200680 days
200734 days
200823 days
200935 days
201033 days
201130 days
201255 days
201327 days
201438 days
20159 days
201632 days
201817 days
201921 days
202039 days
202127 days
202260 days
202319 days
202427 days
202532 days
202641 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

29 years with a frost

Across 29 years with a frost, the median last spring frost at Wiseman falls on 1 June and the median first autumn frost on 9 August, which leaves a median of 67 days between them.

Fitted over all years, the growing season changes by -0.6 days per decade at this station.

Frost dates and growing season at Wiseman
MeasureMedian, all yearsEarliest periodRecent period (1920 to 2025)Recent against earliestFitted trend
Last spring frost1 Junen/a1 Junen/a-0.2 days per decade
First autumn frost9 Augustn/a9 Augustn/a-0.8 days per decade
Growing days67 daysn/a67 daysn/a-0.6 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

30 years, 1936 to 2025

A day with at least 29.9 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 85.0 mm (3.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Wiseman: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years29.9 mm (1.2 in)
5 years42.6 mm (1.7 in)
10 years51.7 mm (2.0 in)
25 years64.2 mm (2.5 in)
50 years74.3 mm (2.9 in)Longer than the 30 years of record
100 years85.0 mm (3.3 in)Longer than the 30 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, 30 years of values from 1936 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: 94.0 mm (3.7 in) in 2025; 50.5 mm (2.0 in) in 1944; 50.3 mm (2.0 in) in 2003.

Download the Data

  • Data for Wiseman standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Wiseman 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-13).