Wainwright AP Weather Records (USW00027503)
Record envelope, standing records and threshold days for Wainwright AP (USW00027503), Alaska, United States, with 92 years of record.
Key Facts for Wainwright AP
- Wainwright AP (USW00027503) is a weather station in Alaska, United States at 70.64 latitude and -160.01 longitude, 13 m (41 ft) above sea level.
- The station reports from 1935 to 2026, 92 years of record.
- 1,464 records set at Wainwright AP still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Wainwright AP set a daily record high minimum temperature of 2.2 C (36.0 F) on 22 September 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, 70.64 latitude, -160.01 longitude.
- Elevation: 13 m (41 ft).
- Period of record: 1935 to 2026, 92 years.
- Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
0 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 4.4 C (39.9 F) | -45.6 C (-50.1 F) | n/a | n/a |
| Feb | 7.2 C (45.0 F) | -48.9 C (-56.0 F) | n/a | n/a |
| Mar | 10.0 C (50.0 F) | -45.0 C (-49.0 F) | n/a | n/a |
| Apr | 6.1 C (43.0 F) | -40.0 C (-40.0 F) | n/a | n/a |
| May | 16.1 C (61.0 F) | -26.7 C (-16.1 F) | n/a | n/a |
| Jun | 23.3 C (73.9 F) | -10.0 C (14.0 F) | 16.7 C (62.1 F) | -0.6 C (30.9 F) |
| Jul | 28.9 C (84.0 F) | -5.6 C (21.9 F) | n/a | n/a |
| Aug | 24.4 C (75.9 F) | -6.1 C (21.0 F) | n/a | n/a |
| Sep | 21.1 C (70.0 F) | -16.7 C (1.9 F) | 4.4 C (39.9 F) | -5.0 C (23.0 F) |
| Oct | 6.7 C (44.1 F) | -28.3 C (-18.9 F) | 1.7 C (35.1 F) | -11.1 C (12.0 F) |
| Nov | 2.8 C (37.0 F) | -43.3 C (-45.9 F) | n/a | n/a |
| Dec | 3.9 C (39.0 F) | -45.6 C (-50.1 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1935 | 8 |
| 1936 | 35 |
| 1938 | 1 |
| 1943 | 35 |
| 1944 | 13 |
| 1945 | 28 |
| 1946 | 38 |
| 1947 | 16 |
| 1948 | 54 |
| 1949 | 26 |
| 1950 | 34 |
| 1951 | 31 |
| 1952 | 21 |
| 1953 | 1 |
| 1954 | 14 |
| 1955 | 60 |
| 1956 | 51 |
| 1957 | 55 |
| 1958 | 10 |
| 1959 | 41 |
| 1960 | 49 |
| 1961 | 26 |
| 1962 | 34 |
| 1963 | 22 |
| 1964 | 56 |
| 1965 | 51 |
| 1966 | 31 |
| 1967 | 38 |
| 1968 | 33 |
| 1998 | 6 |
| 1999 | 14 |
| 2000 | 15 |
| 2001 | 23 |
| 2002 | 34 |
| 2003 | 12 |
| 2004 | 20 |
| 2005 | 15 |
| 2006 | 22 |
| 2007 | 31 |
| 2008 | 20 |
| 2009 | 16 |
| 2010 | 24 |
| 2011 | 8 |
| 2012 | 18 |
| 2013 | 30 |
| 2014 | 17 |
| 2015 | 10 |
| 2016 | 41 |
| 2017 | 32 |
| 2018 | 24 |
| 2019 | 59 |
| 2020 | 5 |
| 2021 | 6 |
| 2022 | 24 |
| 2023 | 22 |
| 2024 | 4 |
All-Time Record Progression
1 new records| Date | Kind | Detail |
|---|---|---|
| 2023-07-24 | Record high maximum temperature | Record high maximum temperature 28.9 C (84.0 F) |
Wettest Day of Each Month
Jul: 101.6 mm (4.0 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 5.1 mm (0.20 in) | 6 January 1956 |
| Feb | 4.6 mm (0.18 in) | 5 February 2002 |
| Mar | 3.8 mm (0.15 in) | 13 March 1953 |
| Apr | 5.8 mm (0.23 in) | 14 April 2014 |
| May | 26.7 mm (1.1 in) | 24 May 1965 |
| Jun | 73.7 mm (2.9 in) | 25 June 1936 |
| Jul | 101.6 mm (4.0 in) | 28 July 1963 |
| Aug | 55.9 mm (2.2 in) | 10 August 1965 |
| Sep | 20.3 mm (0.8 in) | 28 September 1936 |
| Oct | 8.1 mm (0.32 in) | 2 October 2003 |
| Nov | 4.6 mm (0.18 in) | 22 November 2010 |
| Dec | 4.8 mm (0.19 in) | 21 December 1955 |
Period of Record Coverage
1935 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1935 | 101 | 28% | No |
| 1936 | 239 | 65% | No |
| 1938 | 20 | 5% | No |
| 1942 | 30 | 8% | No |
| 1943 | 334 | 92% | Yes |
| 1944 | 214 | 58% | No |
| 1945 | 261 | 72% | No |
| 1946 | 322 | 88% | No |
| 1947 | 354 | 97% | Yes |
| 1948 | 351 | 96% | Yes |
| 1949 | 338 | 93% | Yes |
| 1950 | 349 | 96% | Yes |
| 1951 | 349 | 96% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 31 | 8% | No |
| 1954 | 168 | 46% | No |
| 1955 | 365 | 100% | Yes |
| 1956 | 365 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 267 | 73% | No |
| 1959 | 364 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 364 | 100% | Yes |
| 1962 | 362 | 99% | Yes |
| 1963 | 314 | 86% | No |
| 1964 | 365 | 100% | Yes |
| 1965 | 364 | 100% | Yes |
| 1966 | 321 | 88% | No |
| 1967 | 365 | 100% | Yes |
| 1968 | 206 | 56% | No |
| 1998 | 109 | 30% | No |
| 1999 | 321 | 88% | No |
| 2000 | 365 | 100% | Yes |
| 2001 | 365 | 100% | Yes |
| 2002 | 365 | 100% | Yes |
| 2003 | 351 | 96% | Yes |
| 2004 | 358 | 98% | Yes |
| 2005 | 360 | 99% | Yes |
| 2006 | 358 | 98% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 355 | 97% | Yes |
| 2009 | 351 | 96% | Yes |
| 2010 | 334 | 92% | Yes |
| 2011 | 344 | 94% | Yes |
| 2012 | 336 | 92% | Yes |
| 2013 | 352 | 96% | Yes |
| 2014 | 337 | 92% | Yes |
| 2015 | 257 | 70% | No |
| 2016 | 354 | 97% | Yes |
| 2017 | 316 | 87% | No |
| 2018 | 352 | 96% | Yes |
| 2019 | 302 | 83% | No |
| 2020 | 217 | 59% | No |
| 2021 | 225 | 62% | No |
| 2022 | 351 | 96% | Yes |
| 2023 | 311 | 85% | No |
| 2024 | 114 | 31% | No |
| 2026 | 28 | 8% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 22 September 2026 | Wainwright AP, US | daily high min (Provisional) | 2.2 C (36.0 F) | 1.1 C (2.0 F) | 7 years | 14 of 100 (Routine) |
| 19 April 2024 | Wainwright AP, US | daily high min | -7.7 C (18.1 F) | 0.1 C (0.2 F) | 73 years | 30 of 100 (Routine) |
| 16 April 2024 | Wainwright AP, US | daily high max | 1.7 C (35.1 F) | 4.4 C (7.9 F) | 10 years | 18 of 100 (Routine) |
| 22 March 2024 | Wainwright AP, US | daily high min | -4.3 C (24.3 F) | 1.3 C (2.3 F) | 22 years | 16 of 100 (Routine) |
| 22 March 2024 | Wainwright AP, US | daily high max (Tie) | 1.1 C (34.0 F) | tie | 59 years | 6 of 100 (Routine) |
| 15 January 2024 | Wainwright AP, US | daily high max | -1.6 C (29.1 F) | 0.1 C (0.2 F) | 66 years | 29 of 100 (Routine) |
| 15 October 2023 | Wainwright AP, US | daily high min | -0.5 C (31.1 F) | 0.6 C (1.1 F) | 72 years | 29 of 100 (Routine) |
| 29 September 2023 | Wainwright AP, US | daily high min (Tie) | 1.1 C (34.0 F) | tie | 8 years | 2 of 100 (Routine) |
| 23 September 2023 | Wainwright AP, US | daily high min (Tie) | 1.1 C (34.0 F) | tie | 10 years | 2 of 100 (Routine) |
| 22 September 2023 | Wainwright AP, US | daily high min (Tie) | 1.1 C (34.0 F) | tie | 4 years | 2 of 100 (Routine) |
| 7 August 2023 | Wainwright AP, US | daily high max | 21.1 C (70.0 F) | 2.8 C (5.0 F) | 86 years | 40 of 100 (Notable) |
| 7 August 2023 | Wainwright AP, US | daily high min (Tie) | 10.0 C (50.0 F) | tie | 86 years | 8 of 100 (Routine) |
| 6 August 2023 | Wainwright AP, US | daily high max | 23.3 C (73.9 F) | 2.2 C (4.0 F) | 6 years | 14 of 100 (Routine) |
| 5 August 2023 | Wainwright AP, US | daily high max | 22.8 C (73.0 F) | 5.0 C (9.0 F) | 18 years | 23 of 100 (Routine) |
| 5 August 2023 | Wainwright AP, US | monthly high min (Tie) | 12.8 C (55.0 F) | tie | 2 years | 4 of 100 (Routine) |
| 1 August 2023 | Wainwright AP, US | daily high min | 12.2 C (54.0 F) | 1.1 C (2.0 F) | 9 years | 13 of 100 (Routine) |
| 31 July 2023 | Wainwright AP, US | daily high min | 12.2 C (54.0 F) | 2.8 C (5.0 F) | 4 years | 17 of 100 (Routine) |
| 30 July 2023 | Wainwright AP, US | daily high min | 12.2 C (54.0 F) | 1.1 C (2.0 F) | 13 years | 15 of 100 (Routine) |
| 29 July 2023 | Wainwright AP, US | daily high min (Tie) | 11.1 C (52.0 F) | tie | 4 years | 2 of 100 (Routine) |
| 28 July 2023 | Wainwright AP, US | daily high min | 11.7 C (53.1 F) | 0.6 C (1.1 F) | 1 year | 9 of 100 (Routine) |
Climate Trend
31 complete years, 1943 to 2022| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1943 | -10.6 C | +0.03 C |
| 1947 | -11.1 C | -0.43 C |
| 1948 | -12.8 C | -2.09 C |
| 1950 | -9.3 C | +1.40 C |
| 1952 | -12.0 C | -1.34 C |
| 1955 | -13.6 C | -2.91 C |
| 1956 | -12.9 C | -2.20 C |
| 1957 | -11.1 C | -0.42 C |
| 1959 | -12.9 C | -2.25 C |
| 1960 | -12.6 C | -1.97 C |
| 1961 | -12.6 C | -1.89 C |
| 1962 | -10.0 C | +0.65 C |
| 1964 | -14.6 C | -3.91 C |
| 1965 | -12.2 C | -1.58 C |
| 1967 | -11.1 C | -0.42 C |
| 2000 | -11.5 C | -0.80 C |
| 2001 | -11.3 C | -0.66 C |
| 2002 | -8.7 C | +1.92 C |
| 2003 | -9.6 C | +1.04 C |
| 2004 | -10.2 C | +0.44 C |
| 2005 | -9.7 C | +0.96 C |
| 2006 | -10.3 C | +0.33 C |
| 2007 | -8.5 C | +2.15 C |
| 2008 | -10.4 C | +0.23 C |
| 2009 | -9.3 C | +1.38 C |
| 2011 | -9.1 C | +1.57 C |
| 2012 | -9.9 C | +0.77 C |
| 2013 | -8.9 C | +1.77 C |
| 2016 | -7.0 C | +3.63 C |
| 2018 | -7.9 C | +2.73 C |
| 2022 | -8.9 C | +1.80 C |
The annual mean temperature here has risen by 0.5 C (0.3 to 0.6) per decade over 1943 to 2022. In Fahrenheit: 0.8 F (0.5 to 1.2) per decade. The slope is a straight line fitted to 31 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.5 C (0.3 to 0.6) per decade | 0.8 F (0.5 to 1.2) per decade | 1943 to 2022 | 31 | Rise |
| Mean daily maximum | 0.5 C (0.3 to 0.6) per decade | 0.8 F (0.5 to 1.1) per decade | 1943 to 2022 | 31 | Rise |
| Mean daily minimum | 0.5 C (0.3 to 0.7) per decade | 0.8 F (0.5 to 1.2) per decade | 1943 to 2022 | 31 | Rise |
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
1935 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 28.9 C (84.0 F) | 2023 | 21.4 C (70.5 F) | 58 |
| Coldest night (TNn) | -48.9 C (-56.0 F) | 1964 | -42.1 C (-43.8 F) | 58 |
| Wettest day (Rx1day) | 101.6 mm (4.0 in) | 1963 | 10.7 mm (0.4 in) | 59 |
| Wettest five days (Rx5day) | 132.1 mm (5.2 in) | 1936 | 14.8 mm (0.6 in) | 59 |
| Longest dry spell (CDD) | 173 days | 1947 | 54 days | 59 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1935 | 8.9 C (48.0 F) |
| 1936 | 23.3 C (73.9 F) |
| 1938 | 18.3 C (64.9 F) |
| 1942 | -5.0 C (23.0 F) |
| 1943 | 21.1 C (70.0 F) |
| 1944 | 15.6 C (60.1 F) |
| 1945 | 16.1 C (61.0 F) |
| 1946 | 22.2 C (72.0 F) |
| 1947 | 21.7 C (71.1 F) |
| 1948 | 15.6 C (60.1 F) |
| 1949 | 20.0 C (68.0 F) |
| 1950 | 25.6 C (78.1 F) |
| 1951 | 25.6 C (78.1 F) |
| 1952 | 19.4 C (66.9 F) |
| 1953 | -15.0 C (5.0 F) |
| 1954 | 22.2 C (72.0 F) |
| 1955 | 26.7 C (80.1 F) |
| 1956 | 17.8 C (64.0 F) |
| 1957 | 21.7 C (71.1 F) |
| 1958 | 21.7 C (71.1 F) |
| 1959 | 18.3 C (64.9 F) |
| 1960 | 22.8 C (73.0 F) |
| 1961 | 21.7 C (71.1 F) |
| 1962 | 23.3 C (73.9 F) |
| 1963 | 18.9 C (66.0 F) |
| 1964 | 17.8 C (64.0 F) |
| 1965 | 21.1 C (70.0 F) |
| 1966 | 14.4 C (57.9 F) |
| 1967 | 15.6 C (60.1 F) |
| 1968 | 12.8 C (55.0 F) |
| 1969 | n/a |
| 1998 | 8.9 C (48.0 F) |
| 1999 | 22.8 C (73.0 F) |
| 2000 | 20.6 C (69.1 F) |
| 2001 | 21.7 C (71.1 F) |
| 2002 | 25.0 C (77.0 F) |
| 2003 | 20.6 C (69.1 F) |
| 2004 | 22.2 C (72.0 F) |
| 2005 | 22.2 C (72.0 F) |
| 2006 | 20.6 C (69.1 F) |
| 2007 | 22.2 C (72.0 F) |
| 2008 | 22.8 C (73.0 F) |
| 2009 | 22.8 C (73.0 F) |
| 2010 | 23.3 C (73.9 F) |
| 2011 | 21.1 C (70.0 F) |
| 2012 | 20.6 C (69.1 F) |
| 2013 | 26.1 C (79.0 F) |
| 2014 | 19.4 C (66.9 F) |
| 2015 | 17.2 C (63.0 F) |
| 2016 | 23.3 C (73.9 F) |
| 2017 | 21.7 C (71.1 F) |
| 2018 | 21.7 C (71.1 F) |
| 2019 | 23.3 C (73.9 F) |
| 2020 | 19.4 C (66.9 F) |
| 2021 | 21.7 C (71.1 F) |
| 2022 | 23.3 C (73.9 F) |
| 2023 | 28.9 C (84.0 F) |
| 2024 | 15.6 C (60.1 F) |
| 2026 | 16.7 C (62.1 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1935 | -41.7 C (-43.1 F) |
| 1936 | -42.2 C (-44.0 F) |
| 1938 | -2.2 C (28.0 F) |
| 1942 | -37.8 C (-36.0 F) |
| 1943 | -42.2 C (-44.0 F) |
| 1944 | -42.8 C (-45.0 F) |
| 1945 | -42.8 C (-45.0 F) |
| 1946 | -40.6 C (-41.1 F) |
| 1947 | -46.1 C (-51.0 F) |
| 1948 | -43.3 C (-45.9 F) |
| 1949 | -41.7 C (-43.1 F) |
| 1950 | -45.6 C (-50.1 F) |
| 1951 | -45.6 C (-50.1 F) |
| 1952 | -44.4 C (-47.9 F) |
| 1953 | -43.3 C (-45.9 F) |
| 1954 | -37.8 C (-36.0 F) |
| 1955 | -47.8 C (-54.0 F) |
| 1956 | -46.1 C (-51.0 F) |
| 1957 | -47.8 C (-54.0 F) |
| 1958 | -42.2 C (-44.0 F) |
| 1959 | -43.9 C (-47.0 F) |
| 1960 | -41.1 C (-42.0 F) |
| 1961 | -41.7 C (-43.1 F) |
| 1962 | -42.8 C (-45.0 F) |
| 1963 | -43.3 C (-45.9 F) |
| 1964 | -48.9 C (-56.0 F) |
| 1965 | -45.0 C (-49.0 F) |
| 1966 | -45.0 C (-49.0 F) |
| 1967 | -43.3 C (-45.9 F) |
| 1968 | -47.2 C (-53.0 F) |
| 1969 | n/a |
| 1998 | -37.8 C (-36.0 F) |
| 1999 | -45.6 C (-50.1 F) |
| 2000 | -42.8 C (-45.0 F) |
| 2001 | -38.3 C (-36.9 F) |
| 2002 | -40.6 C (-41.1 F) |
| 2003 | -39.4 C (-38.9 F) |
| 2004 | -42.8 C (-45.0 F) |
| 2005 | -37.8 C (-36.0 F) |
| 2006 | -47.1 C (-52.8 F) |
| 2007 | -42.1 C (-43.8 F) |
| 2008 | -41.0 C (-41.8 F) |
| 2009 | -43.2 C (-45.8 F) |
| 2010 | -42.1 C (-43.8 F) |
| 2011 | -41.0 C (-41.8 F) |
| 2012 | -42.1 C (-43.8 F) |
| 2013 | -38.8 C (-37.8 F) |
| 2014 | -39.3 C (-38.7 F) |
| 2015 | -38.8 C (-37.8 F) |
| 2016 | -32.7 C (-26.9 F) |
| 2017 | -37.1 C (-34.8 F) |
| 2018 | -36.0 C (-32.8 F) |
| 2019 | -37.7 C (-35.9 F) |
| 2020 | -41.0 C (-41.8 F) |
| 2021 | -37.1 C (-34.8 F) |
| 2022 | -42.7 C (-44.9 F) |
| 2023 | -37.1 C (-34.8 F) |
| 2024 | -37.1 C (-34.8 F) |
| 2026 | -11.1 C (12.0 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1935 | 7.6 mm (0.30 in) |
| 1936 | 73.7 mm (2.9 in) |
| 1938 | 13.7 mm (0.5 in) |
| 1942 | 1.3 mm (0.05 in) |
| 1943 | 16.0 mm (0.6 in) |
| 1944 | 5.1 mm (0.20 in) |
| 1945 | 10.2 mm (0.4 in) |
| 1946 | 36.6 mm (1.4 in) |
| 1947 | 14.7 mm (0.6 in) |
| 1948 | 11.2 mm (0.4 in) |
| 1949 | 15.2 mm (0.6 in) |
| 1950 | 2.8 mm (0.11 in) |
| 1951 | 56.6 mm (2.2 in) |
| 1952 | 12.7 mm (0.5 in) |
| 1953 | 25.7 mm (1.0 in) |
| 1954 | 9.1 mm (0.36 in) |
| 1955 | 13.7 mm (0.5 in) |
| 1956 | 15.2 mm (0.6 in) |
| 1957 | 15.0 mm (0.6 in) |
| 1958 | 5.1 mm (0.20 in) |
| 1959 | 5.1 mm (0.20 in) |
| 1960 | 17.8 mm (0.7 in) |
| 1961 | 52.8 mm (2.1 in) |
| 1962 | 10.4 mm (0.4 in) |
| 1963 | 101.6 mm (4.0 in) |
| 1964 | 7.6 mm (0.30 in) |
| 1965 | 55.9 mm (2.2 in) |
| 1966 | 25.9 mm (1.0 in) |
| 1967 | 25.4 mm (1.0 in) |
| 1968 | 2.3 mm (0.09 in) |
| 1969 | 0.0 mm (0.00 in) |
| 1998 | 5.8 mm (0.23 in) |
| 1999 | 11.2 mm (0.4 in) |
| 2000 | 7.6 mm (0.30 in) |
| 2001 | 11.4 mm (0.4 in) |
| 2002 | 10.9 mm (0.4 in) |
| 2003 | 11.9 mm (0.5 in) |
| 2004 | 10.7 mm (0.4 in) |
| 2005 | 18.8 mm (0.7 in) |
| 2006 | 8.4 mm (0.33 in) |
| 2007 | 10.4 mm (0.4 in) |
| 2008 | 9.4 mm (0.37 in) |
| 2009 | 15.5 mm (0.6 in) |
| 2010 | 18.8 mm (0.7 in) |
| 2011 | 7.1 mm (0.28 in) |
| 2012 | 10.9 mm (0.4 in) |
| 2013 | 13.0 mm (0.5 in) |
| 2014 | 10.7 mm (0.4 in) |
| 2015 | 0.8 mm (0.03 in) |
| 2016 | 1.0 mm (0.04 in) |
| 2017 | 3.8 mm (0.15 in) |
| 2018 | 3.0 mm (0.12 in) |
| 2019 | 2.3 mm (0.09 in) |
| 2020 | 0.3 mm (0.01 in) |
| 2021 | 1.0 mm (0.04 in) |
| 2022 | 4.6 mm (0.18 in) |
| 2023 | 2.5 mm (0.10 in) |
| 2024 | 0.0 mm (0.00 in) |
| 2026 | 0.0 mm (0.00 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1935 | 12.5 mm (0.5 in) |
| 1936 | 132.1 mm (5.2 in) |
| 1938 | 17.0 mm (0.7 in) |
| 1942 | 1.8 mm (0.07 in) |
| 1943 | 23.4 mm (0.9 in) |
| 1944 | 4.4 mm (0.17 in) |
| 1945 | 15.8 mm (0.6 in) |
| 1946 | 89.2 mm (3.5 in) |
| 1947 | 22.1 mm (0.9 in) |
| 1948 | 12.2 mm (0.5 in) |
| 1949 | 15.8 mm (0.6 in) |
| 1950 | 5.0 mm (0.20 in) |
| 1951 | 62.2 mm (2.4 in) |
| 1952 | 13.3 mm (0.5 in) |
| 1953 | 44.2 mm (1.7 in) |
| 1954 | 22.9 mm (0.9 in) |
| 1955 | 31.5 mm (1.2 in) |
| 1956 | 28.6 mm (1.1 in) |
| 1957 | 22.3 mm (0.9 in) |
| 1958 | 14.2 mm (0.6 in) |
| 1959 | 7.9 mm (0.31 in) |
| 1960 | 35.1 mm (1.4 in) |
| 1961 | 78.8 mm (3.1 in) |
| 1962 | 14.0 mm (0.6 in) |
| 1963 | 129.1 mm (5.1 in) |
| 1964 | 11.1 mm (0.4 in) |
| 1965 | 57.0 mm (2.2 in) |
| 1966 | 54.8 mm (2.2 in) |
| 1967 | 27.2 mm (1.1 in) |
| 1968 | 5.6 mm (0.22 in) |
| 1969 | 0.0 mm (0.00 in) |
| 1998 | 12.4 mm (0.5 in) |
| 1999 | 11.7 mm (0.5 in) |
| 2000 | 14.5 mm (0.6 in) |
| 2001 | 19.0 mm (0.7 in) |
| 2002 | 20.8 mm (0.8 in) |
| 2003 | 21.0 mm (0.8 in) |
| 2004 | 14.8 mm (0.6 in) |
| 2005 | 37.2 mm (1.5 in) |
| 2006 | 26.7 mm (1.1 in) |
| 2007 | 13.0 mm (0.5 in) |
| 2008 | 14.3 mm (0.6 in) |
| 2009 | 22.7 mm (0.9 in) |
| 2010 | 31.2 mm (1.2 in) |
| 2011 | 12.7 mm (0.5 in) |
| 2012 | 16.9 mm (0.7 in) |
| 2013 | 18.6 mm (0.7 in) |
| 2014 | 16.5 mm (0.6 in) |
| 2015 | 0.8 mm (0.03 in) |
| 2016 | 1.0 mm (0.04 in) |
| 2017 | 5.1 mm (0.20 in) |
| 2018 | 5.9 mm (0.23 in) |
| 2019 | 3.4 mm (0.13 in) |
| 2020 | 0.3 mm (0.01 in) |
| 2021 | 1.5 mm (0.06 in) |
| 2022 | 4.6 mm (0.18 in) |
| 2023 | 2.5 mm (0.10 in) |
| 2024 | 0.0 mm (0.00 in) |
| 2026 | 0.0 mm (0.00 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1935 | 40 days |
| 1936 | 46 days |
| 1938 | 2 days |
| 1942 | 19 days |
| 1943 | 54 days |
| 1944 | 60 days |
| 1945 | 111 days |
| 1946 | 83 days |
| 1947 | 173 days |
| 1948 | 93 days |
| 1949 | 35 days |
| 1950 | 55 days |
| 1951 | 82 days |
| 1952 | 75 days |
| 1953 | 47 days |
| 1954 | 39 days |
| 1955 | 59 days |
| 1956 | 70 days |
| 1957 | 46 days |
| 1958 | 47 days |
| 1959 | 53 days |
| 1960 | 142 days |
| 1961 | 55 days |
| 1962 | 94 days |
| 1963 | 61 days |
| 1964 | 93 days |
| 1965 | 50 days |
| 1966 | 47 days |
| 1967 | 49 days |
| 1968 | 53 days |
| 1969 | 30 days |
| 1998 | 42 days |
| 1999 | 42 days |
| 2000 | 49 days |
| 2001 | 93 days |
| 2002 | 71 days |
| 2003 | 127 days |
| 2004 | 47 days |
| 2005 | 64 days |
| 2006 | 122 days |
| 2007 | 71 days |
| 2008 | 55 days |
| 2009 | 82 days |
| 2010 | 83 days |
| 2011 | 100 days |
| 2012 | 70 days |
| 2013 | 72 days |
| 2014 | 39 days |
| 2015 | 30 days |
| 2016 | 70 days |
| 2017 | 38 days |
| 2018 | 39 days |
| 2019 | 52 days |
| 2020 | 31 days |
| 2021 | 44 days |
| 2022 | 64 days |
| 2023 | 39 days |
| 2024 | 6 days |
| 2026 | 7 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
31 years with a frostAcross 31 years with a frost, the median last spring frost at Wainwright AP falls on 27 June and the median first autumn frost on 4 July, which leaves a median of 8 days between them.
Fitted over all years, the growing season changes by +5.2 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1947 to 2022) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 27 June | n/a | 27 June | n/a | -1.0 days per decade |
| First autumn frost | 4 July | n/a | 4 July | n/a | +4.2 days per decade |
| Growing days | 8 days | n/a | 8 days | n/a | +5.2 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, 1943 to 2014A day with at least 13.5 mm (0.5 in) of rain is expected about once in 2 years. A day with at least 85.9 mm (3.4 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 13.5 mm (0.5 in) | |
| 5 years | 22.8 mm (0.9 in) | |
| 10 years | 31.8 mm (1.3 in) | |
| 25 years | 47.8 mm (1.9 in) | |
| 50 years | 64.2 mm (2.5 in) | Longer than the 30 years of record |
| 100 years | 85.9 mm (3.4 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 1943 to 2014.
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: 56.6 mm (2.2 in) in 1951; 55.9 mm (2.2 in) in 1965; 52.8 mm (2.1 in) in 1961.
Download the Data
Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-14 (14 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-14).