Glennallen Kcam Weather Records (USC00503304)
Record envelope, standing records and threshold days for Glennallen Kcam (USC00503304), Alaska, United States, with 62 years of record.
Key Facts for Glennallen Kcam
- Glennallen Kcam (USC00503304) is a weather station in Alaska, United States at 62.11 latitude and -145.53 longitude, 422 m (1,383 ft) above sea level.
- The station reports from 1965 to 2026, 62 years of record.
- 1,464 records set at Glennallen Kcam still stand.
- Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
- Glennallen Kcam set a daily record precipitation of 20.6 mm (0.8 in) 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, 62.11 latitude, -145.53 longitude.
- Elevation: 422 m (1,383 ft).
- Period of record: 1965 to 2026, 62 years.
- Eligible elements: tmax, tmin, prcp, snow, snwd.
Daily Record Envelope and 2026
12 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 8.3 C (46.9 F) | -51.7 C (-61.1 F) | 3.9 C (39.0 F) | -50.6 C (-59.1 F) |
| Feb | 8.3 C (46.9 F) | -51.1 C (-60.0 F) | -2.8 C (27.0 F) | -39.4 C (-38.9 F) |
| Mar | 13.3 C (55.9 F) | -45.6 C (-50.1 F) | 0.6 C (33.1 F) | -42.8 C (-45.0 F) |
| Apr | 19.4 C (66.9 F) | -34.4 C (-29.9 F) | 12.2 C (54.0 F) | -25.6 C (-14.1 F) |
| May | 27.2 C (81.0 F) | -12.2 C (10.0 F) | 16.1 C (61.0 F) | -3.3 C (26.1 F) |
| Jun | 33.3 C (91.9 F) | -5.0 C (23.0 F) | 26.1 C (79.0 F) | 2.8 C (37.0 F) |
| Jul | 35.6 C (96.1 F) | -3.9 C (25.0 F) | 25.6 C (78.1 F) | 2.2 C (36.0 F) |
| Aug | 31.7 C (89.1 F) | -8.9 C (16.0 F) | 28.9 C (84.0 F) | -2.2 C (28.0 F) |
| Sep | 24.4 C (75.9 F) | -20.6 C (-5.1 F) | 22.8 C (73.0 F) | -6.7 C (19.9 F) |
| Oct | 22.2 C (72.0 F) | -34.4 C (-29.9 F) | 8.3 C (46.9 F) | -10.6 C (12.9 F) |
| Nov | 7.8 C (46.0 F) | -48.3 C (-54.9 F) | n/a | n/a |
| Dec | 7.2 C (45.0 F) | -48.9 C (-56.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1966 | 22 |
| 1967 | 31 |
| 1968 | 24 |
| 1969 | 48 |
| 1970 | 40 |
| 1971 | 50 |
| 1972 | 51 |
| 1973 | 18 |
| 1974 | 25 |
| 1975 | 35 |
| 1976 | 18 |
| 1977 | 26 |
| 1978 | 10 |
| 1979 | 44 |
| 1980 | 51 |
| 1981 | 36 |
| 1982 | 23 |
| 1983 | 13 |
| 1984 | 21 |
| 1985 | 38 |
| 1986 | 35 |
| 1987 | 21 |
| 1988 | 17 |
| 1989 | 38 |
| 1990 | 30 |
| 1991 | 22 |
| 1992 | 20 |
| 1993 | 23 |
| 1994 | 27 |
| 1995 | 25 |
| 1996 | 40 |
| 1997 | 19 |
| 1998 | 8 |
| 1999 | 15 |
| 2000 | 5 |
| 2001 | 3 |
| 2002 | 5 |
| 2003 | 13 |
| 2004 | 10 |
| 2005 | 6 |
| 2007 | 10 |
| 2008 | 21 |
| 2009 | 52 |
| 2010 | 6 |
| 2011 | 17 |
| 2012 | 38 |
| 2013 | 57 |
| 2014 | 14 |
| 2015 | 21 |
| 2016 | 27 |
| 2017 | 23 |
| 2018 | 7 |
| 2019 | 40 |
| 2020 | 17 |
| 2021 | 16 |
| 2022 | 14 |
| 2023 | 19 |
| 2024 | 12 |
| 2025 | 26 |
| 2026 | 21 |
All-Time Record Progression
5 new records| Date | Kind | Detail |
|---|---|---|
| 2009-07-09 | Record high maximum temperature | Record high maximum temperature 35.6 C (96.1 F) |
| 2010-07-22 | Record daily precipitation | Record daily precipitation 96.5 mm (3.8 in) |
| 2013-06-18 | Record high minimum temperature | Record high minimum temperature 16.7 C (62.1 F) |
| 2022-10-13 | Record daily snowfall | Record daily snowfall 33.0 cm (13.0 in) |
| 2022-12-12 | Record daily snowfall | Record daily snowfall 55.9 cm (22.0 in) |
Wettest Day of Each Month
Jul: 96.5 mm (3.8 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 21.8 mm (0.9 in) | 13 January 2018 |
| Feb | 48.3 mm (1.9 in) | 10 February 2017 |
| Mar | 29.2 mm (1.1 in) | 14 March 1990 |
| Apr | 20.3 mm (0.8 in) | 5 April 2021 |
| May | 44.5 mm (1.8 in) | 28 May 2021 |
| Jun | 69.9 mm (2.8 in) | 2 June 1991 |
| Jul | 96.5 mm (3.8 in) | 22 July 2010 |
| Aug | 88.6 mm (3.5 in) | 19 August 1990 |
| Sep | 40.6 mm (1.6 in) | 22 September 1990 |
| Oct | 30.7 mm (1.2 in) | 13 October 2022 |
| Nov | 50.8 mm (2.0 in) | 4 November 2010 |
| Dec | 46.0 mm (1.8 in) | 18 December 1989 |
Period of Record Coverage
1965 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1965 | 16 | 4% | No |
| 1966 | 336 | 92% | Yes |
| 1967 | 362 | 99% | Yes |
| 1968 | 355 | 97% | Yes |
| 1969 | 361 | 99% | Yes |
| 1970 | 351 | 96% | Yes |
| 1971 | 350 | 96% | Yes |
| 1972 | 355 | 97% | Yes |
| 1973 | 363 | 99% | Yes |
| 1974 | 349 | 96% | Yes |
| 1975 | 350 | 96% | Yes |
| 1976 | 359 | 98% | Yes |
| 1977 | 364 | 100% | Yes |
| 1978 | 365 | 100% | Yes |
| 1979 | 364 | 100% | Yes |
| 1980 | 356 | 97% | Yes |
| 1981 | 329 | 90% | Yes |
| 1982 | 319 | 87% | No |
| 1983 | 324 | 89% | No |
| 1984 | 326 | 89% | No |
| 1985 | 310 | 85% | No |
| 1986 | 342 | 94% | Yes |
| 1987 | 335 | 92% | Yes |
| 1988 | 331 | 90% | Yes |
| 1989 | 356 | 98% | Yes |
| 1990 | 363 | 99% | Yes |
| 1991 | 332 | 91% | Yes |
| 1992 | 207 | 57% | No |
| 1993 | 355 | 97% | Yes |
| 1994 | 332 | 91% | Yes |
| 1995 | 300 | 82% | No |
| 1996 | 272 | 74% | No |
| 1997 | 303 | 83% | No |
| 1998 | 272 | 75% | No |
| 1999 | 301 | 82% | No |
| 2000 | 152 | 42% | No |
| 2001 | 90 | 25% | No |
| 2002 | 31 | 8% | No |
| 2003 | 89 | 24% | No |
| 2004 | 92 | 25% | No |
| 2005 | 24 | 7% | No |
| 2007 | 142 | 39% | No |
| 2008 | 206 | 56% | No |
| 2009 | 356 | 98% | Yes |
| 2010 | 237 | 65% | No |
| 2011 | 361 | 99% | Yes |
| 2012 | 365 | 100% | Yes |
| 2013 | 363 | 99% | Yes |
| 2014 | 364 | 100% | Yes |
| 2015 | 363 | 99% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 363 | 99% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 365 | 100% | Yes |
| 2020 | 364 | 99% | Yes |
| 2021 | 365 | 100% | Yes |
| 2022 | 364 | 100% | Yes |
| 2023 | 363 | 99% | Yes |
| 2024 | 365 | 100% | Yes |
| 2025 | 362 | 99% | Yes |
| 2026 | 282 | 77% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 4 October 2026 | Glennallen Kcam, US | daily rain (Provisional) | 20.6 mm (0.8 in) | 7.4 mm (0.29 in) | 32 years | 20 of 100 (Routine) |
| 19 September 2026 | Glennallen Kcam, US | daily rain (Provisional) | 12.7 mm (0.5 in) | 7.6 mm (0.30 in) | 0 years | 20 of 100 (Routine) |
| 5 September 2026 | Glennallen Kcam, US | daily high max (Tie, Provisional) | 22.8 C (73.0 F) | tie | 16 years | 2 of 100 (Routine) |
| 16 August 2026 | Glennallen Kcam, US | daily high min (Provisional) | 12.2 C (54.0 F) | 1.6 C (2.9 F) | 59 years | 26 of 100 (Routine) |
| 15 July 2026 | Glennallen Kcam, US | daily low max | 12.8 C (55.0 F) | 1.6 C (2.9 F) | 39 years | 20 of 100 (Routine) |
| 21 June 2026 | Glennallen Kcam, US | daily high min (Tie) | 11.7 C (53.1 F) | tie | 3 years | 1 of 100 (Routine) |
| 21 May 2026 | Glennallen Kcam, US | daily low max | 5.6 C (42.1 F) | 3.8 C (6.8 F) | 52 years | 29 of 100 (Routine) |
| 21 May 2026 | Glennallen Kcam, US | daily rain | 10.2 mm (0.4 in) | 7.7 mm (0.30 in) | 4 years | 20 of 100 (Routine) |
| 4 May 2026 | Glennallen Kcam, US | daily high min | 6.1 C (43.0 F) | 3.3 C (5.9 F) | 1 year | 14 of 100 (Routine) |
| 3 May 2026 | Glennallen Kcam, US | daily high min (Tie) | 3.3 C (37.9 F) | tie | 7 years | 2 of 100 (Routine) |
| 28 April 2026 | Glennallen Kcam, US | daily high min | 3.3 C (37.9 F) | 0.5 C (0.9 F) | 41 years | 18 of 100 (Routine) |
| 27 April 2026 | Glennallen Kcam, US | daily high min | 3.3 C (37.9 F) | 1.6 C (2.9 F) | 21 years | 14 of 100 (Routine) |
| 24 April 2026 | Glennallen Kcam, US | daily high min (Tie) | 3.3 C (37.9 F) | tie | 9 years | 2 of 100 (Routine) |
| 21 April 2026 | Glennallen Kcam, US | daily rain | 0.3 mm (0.01 in) | 0.3 mm (0.01 in) | 60 years | 20 of 100 (Routine) |
| 28 March 2026 | Glennallen Kcam, US | daily low min | -30.6 C (-23.1 F) | 5.0 C (9.0 F) | 57 years | 28 of 100 (Routine) |
| 23 March 2026 | Glennallen Kcam, US | daily low min (Tie) | -29.4 C (-20.9 F) | tie | 55 years | 5 of 100 (Routine) |
| 22 March 2026 | Glennallen Kcam, US | daily low min (Tie) | -30.6 C (-23.1 F) | tie | 4 years | 1 of 100 (Routine) |
| 21 March 2026 | Glennallen Kcam, US | daily low min | -32.2 C (-26.0 F) | 0.5 C (0.9 F) | 29 years | 14 of 100 (Routine) |
| 19 March 2026 | Glennallen Kcam, US | daily low max | -14.4 C (6.1 F) | 3.8 C (6.8 F) | 32 years | 21 of 100 (Routine) |
| 18 March 2026 | Glennallen Kcam, US | daily low max | -14.4 C (6.1 F) | 1.6 C (2.9 F) | 28 years | 16 of 100 (Routine) |
Climate Trend
37 complete years, 1967 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1967 | -3.3 C | -0.62 C |
| 1968 | -4.3 C | -1.57 C |
| 1969 | -3.6 C | -0.88 C |
| 1970 | -3.5 C | -0.80 C |
| 1971 | -5.2 C | -2.45 C |
| 1972 | -6.0 C | -3.31 C |
| 1973 | -5.1 C | -2.35 C |
| 1974 | -4.3 C | -1.62 C |
| 1975 | -5.2 C | -2.51 C |
| 1976 | -2.2 C | +0.52 C |
| 1977 | -1.5 C | +1.18 C |
| 1978 | -1.8 C | +0.97 C |
| 1979 | -2.3 C | +0.47 C |
| 1980 | -2.4 C | +0.28 C |
| 1985 | -2.8 C | -0.03 C |
| 1986 | -2.4 C | +0.36 C |
| 1987 | -1.0 C | +1.73 C |
| 1988 | -2.5 C | +0.25 C |
| 1989 | -2.8 C | -0.04 C |
| 1990 | -3.2 C | -0.45 C |
| 1993 | -1.3 C | +1.41 C |
| 2009 | -2.0 C | +0.77 C |
| 2011 | -2.8 C | -0.06 C |
| 2012 | -5.0 C | -2.25 C |
| 2013 | -1.8 C | +0.89 C |
| 2014 | -2.2 C | +0.54 C |
| 2015 | -1.4 C | +1.32 C |
| 2016 | -1.4 C | +1.37 C |
| 2017 | -2.5 C | +0.25 C |
| 2018 | -1.9 C | +0.80 C |
| 2019 | 0.0 C | +2.73 C |
| 2020 | -3.2 C | -0.44 C |
| 2021 | -3.5 C | -0.74 C |
| 2022 | -1.6 C | +1.09 C |
| 2023 | -1.5 C | +1.27 C |
| 2024 | -2.4 C | +0.32 C |
| 2025 | -1.1 C | +1.62 C |
The annual mean temperature here has risen by 0.3 C (0.1 to 0.5) per decade over 1967 to 2025. In Fahrenheit: 0.6 F (0.3 to 1.0) per decade. The slope is a straight line fitted to 37 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.3 C (0.1 to 0.5) per decade | 0.6 F (0.3 to 1.0) per decade | 1967 to 2025 | 37 | Rise |
| Mean daily maximum | 0.1 C (-0.1 to 0.3) per decade | 0.2 F (-0.1 to 0.6) per decade | 1967 to 2025 | 37 | Not clearly different from zero |
| Mean daily minimum | 0.6 C (0.3 to 0.8) per decade | 1.0 F (0.6 to 1.4) per decade | 1967 to 2025 | 37 | 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
1965 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 35.6 C (96.1 F) | 2009 | 28.9 C (84.0 F) | 61 |
| Coldest night (TNn) | -51.7 C (-61.1 F) | 1975 | -44.4 C (-47.9 F) | 61 |
| Wettest day (Rx1day) | 96.5 mm (3.8 in) | 2010 | 20.3 mm (0.8 in) | 61 |
| Wettest five days (Rx5day) | 96.8 mm (3.8 in) | 1991 | 34.8 mm (1.4 in) | 61 |
| Longest dry spell (CDD) | 91 days | 1987 | 41 days | 61 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1965 | -2.2 C (28.0 F) |
| 1966 | 28.3 C (82.9 F) |
| 1967 | 31.1 C (88.0 F) |
| 1968 | 28.3 C (82.9 F) |
| 1969 | 32.2 C (90.0 F) |
| 1970 | 28.3 C (82.9 F) |
| 1971 | 30.0 C (86.0 F) |
| 1972 | 29.4 C (84.9 F) |
| 1973 | 26.1 C (79.0 F) |
| 1974 | 26.1 C (79.0 F) |
| 1975 | 29.4 C (84.9 F) |
| 1976 | 31.7 C (89.1 F) |
| 1977 | 28.9 C (84.0 F) |
| 1978 | 28.9 C (84.0 F) |
| 1979 | 28.3 C (82.9 F) |
| 1980 | 28.9 C (84.0 F) |
| 1981 | 26.1 C (79.0 F) |
| 1982 | 28.3 C (82.9 F) |
| 1983 | 28.9 C (84.0 F) |
| 1984 | 28.9 C (84.0 F) |
| 1985 | 27.8 C (82.0 F) |
| 1986 | 30.0 C (86.0 F) |
| 1987 | 28.3 C (82.9 F) |
| 1988 | 30.6 C (87.1 F) |
| 1989 | 30.0 C (86.0 F) |
| 1990 | 30.6 C (87.1 F) |
| 1991 | 32.2 C (90.0 F) |
| 1992 | 27.8 C (82.0 F) |
| 1993 | 32.2 C (90.0 F) |
| 1994 | 30.6 C (87.1 F) |
| 1995 | 30.6 C (87.1 F) |
| 1996 | 26.1 C (79.0 F) |
| 1997 | 29.4 C (84.9 F) |
| 1998 | 28.3 C (82.9 F) |
| 1999 | 28.3 C (82.9 F) |
| 2000 | 11.7 C (53.1 F) |
| 2001 | 26.1 C (79.0 F) |
| 2002 | 26.7 C (80.1 F) |
| 2003 | 22.2 C (72.0 F) |
| 2004 | 30.0 C (86.0 F) |
| 2005 | 6.1 C (43.0 F) |
| 2007 | 13.9 C (57.0 F) |
| 2008 | 23.9 C (75.0 F) |
| 2009 | 35.6 C (96.1 F) |
| 2010 | 27.2 C (81.0 F) |
| 2011 | 26.1 C (79.0 F) |
| 2012 | 27.2 C (81.0 F) |
| 2013 | 33.3 C (91.9 F) |
| 2014 | 27.8 C (82.0 F) |
| 2015 | 30.6 C (87.1 F) |
| 2016 | 29.4 C (84.9 F) |
| 2017 | 31.1 C (88.0 F) |
| 2018 | 28.3 C (82.9 F) |
| 2019 | 32.8 C (91.0 F) |
| 2020 | 25.6 C (78.1 F) |
| 2021 | 31.1 C (88.0 F) |
| 2022 | 30.6 C (87.1 F) |
| 2023 | 28.9 C (84.0 F) |
| 2024 | 28.9 C (84.0 F) |
| 2025 | 29.4 C (84.9 F) |
| 2026 | 28.9 C (84.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1965 | -42.8 C (-45.0 F) |
| 1966 | -48.3 C (-54.9 F) |
| 1967 | -42.8 C (-45.0 F) |
| 1968 | -51.1 C (-60.0 F) |
| 1969 | -46.1 C (-51.0 F) |
| 1970 | -49.4 C (-56.9 F) |
| 1971 | -51.1 C (-60.0 F) |
| 1972 | -49.4 C (-56.9 F) |
| 1973 | -48.3 C (-54.9 F) |
| 1974 | -44.4 C (-47.9 F) |
| 1975 | -51.7 C (-61.1 F) |
| 1976 | -46.1 C (-51.0 F) |
| 1977 | -45.6 C (-50.1 F) |
| 1978 | -40.6 C (-41.1 F) |
| 1979 | -47.8 C (-54.0 F) |
| 1980 | -48.9 C (-56.0 F) |
| 1981 | -47.2 C (-53.0 F) |
| 1982 | -47.8 C (-54.0 F) |
| 1983 | -42.2 C (-44.0 F) |
| 1984 | -45.6 C (-50.1 F) |
| 1985 | -43.9 C (-47.0 F) |
| 1986 | -38.3 C (-36.9 F) |
| 1987 | -38.9 C (-38.0 F) |
| 1988 | -40.6 C (-41.1 F) |
| 1989 | -47.8 C (-54.0 F) |
| 1990 | -48.3 C (-54.9 F) |
| 1991 | -44.4 C (-47.9 F) |
| 1992 | -36.7 C (-34.1 F) |
| 1993 | -47.2 C (-53.0 F) |
| 1994 | -42.2 C (-44.0 F) |
| 1995 | -38.9 C (-38.0 F) |
| 1996 | -47.8 C (-54.0 F) |
| 1997 | -48.3 C (-54.9 F) |
| 1998 | -45.6 C (-50.1 F) |
| 1999 | -47.8 C (-54.0 F) |
| 2000 | -41.7 C (-43.1 F) |
| 2001 | -25.0 C (-13.0 F) |
| 2002 | -11.1 C (12.0 F) |
| 2003 | -33.3 C (-27.9 F) |
| 2004 | -29.4 C (-20.9 F) |
| 2005 | -41.7 C (-43.1 F) |
| 2007 | -42.8 C (-45.0 F) |
| 2008 | -46.1 C (-51.0 F) |
| 2009 | -46.7 C (-52.1 F) |
| 2010 | -41.7 C (-43.1 F) |
| 2011 | -45.6 C (-50.1 F) |
| 2012 | -45.6 C (-50.1 F) |
| 2013 | -43.9 C (-47.0 F) |
| 2014 | -38.9 C (-38.0 F) |
| 2015 | -41.1 C (-42.0 F) |
| 2016 | -40.6 C (-41.1 F) |
| 2017 | -40.0 C (-40.0 F) |
| 2018 | -43.9 C (-47.0 F) |
| 2019 | -42.2 C (-44.0 F) |
| 2020 | -45.6 C (-50.1 F) |
| 2021 | -39.4 C (-38.9 F) |
| 2022 | -46.1 C (-51.0 F) |
| 2023 | -38.3 C (-36.9 F) |
| 2024 | -43.9 C (-47.0 F) |
| 2025 | -44.4 C (-47.9 F) |
| 2026 | -50.6 C (-59.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1965 | 0.5 mm (0.02 in) |
| 1966 | 17.0 mm (0.7 in) |
| 1967 | 19.3 mm (0.8 in) |
| 1968 | 25.4 mm (1.0 in) |
| 1969 | 16.5 mm (0.6 in) |
| 1970 | 14.7 mm (0.6 in) |
| 1971 | 47.5 mm (1.9 in) |
| 1972 | 13.5 mm (0.5 in) |
| 1973 | 30.7 mm (1.2 in) |
| 1974 | 19.1 mm (0.8 in) |
| 1975 | 17.3 mm (0.7 in) |
| 1976 | 30.0 mm (1.2 in) |
| 1977 | 20.8 mm (0.8 in) |
| 1978 | 17.0 mm (0.7 in) |
| 1979 | 13.0 mm (0.5 in) |
| 1980 | 20.6 mm (0.8 in) |
| 1981 | 33.0 mm (1.3 in) |
| 1982 | 25.4 mm (1.0 in) |
| 1983 | 30.5 mm (1.2 in) |
| 1984 | 15.2 mm (0.6 in) |
| 1985 | 18.3 mm (0.7 in) |
| 1986 | 28.2 mm (1.1 in) |
| 1987 | 31.0 mm (1.2 in) |
| 1988 | 29.5 mm (1.2 in) |
| 1989 | 46.0 mm (1.8 in) |
| 1990 | 88.6 mm (3.5 in) |
| 1991 | 69.9 mm (2.8 in) |
| 1992 | 19.1 mm (0.8 in) |
| 1993 | 14.0 mm (0.6 in) |
| 1994 | 15.7 mm (0.6 in) |
| 1995 | 17.0 mm (0.7 in) |
| 1996 | 14.0 mm (0.6 in) |
| 1997 | 20.8 mm (0.8 in) |
| 1998 | 19.6 mm (0.8 in) |
| 1999 | 35.6 mm (1.4 in) |
| 2000 | 10.7 mm (0.4 in) |
| 2001 | 15.2 mm (0.6 in) |
| 2002 | 19.8 mm (0.8 in) |
| 2003 | 6.6 mm (0.26 in) |
| 2004 | 14.0 mm (0.6 in) |
| 2005 | 2.0 mm (0.08 in) |
| 2007 | 9.9 mm (0.39 in) |
| 2008 | 10.2 mm (0.4 in) |
| 2009 | 25.4 mm (1.0 in) |
| 2010 | 96.5 mm (3.8 in) |
| 2011 | 24.9 mm (1.0 in) |
| 2012 | 15.2 mm (0.6 in) |
| 2013 | 20.3 mm (0.8 in) |
| 2014 | 20.3 mm (0.8 in) |
| 2015 | 43.2 mm (1.7 in) |
| 2016 | 17.0 mm (0.7 in) |
| 2017 | 48.3 mm (1.9 in) |
| 2018 | 33.0 mm (1.3 in) |
| 2019 | 19.3 mm (0.8 in) |
| 2020 | 15.7 mm (0.6 in) |
| 2021 | 44.5 mm (1.8 in) |
| 2022 | 30.7 mm (1.2 in) |
| 2023 | 33.3 mm (1.3 in) |
| 2024 | 20.8 mm (0.8 in) |
| 2025 | 21.8 mm (0.9 in) |
| 2026 | 20.6 mm (0.8 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1965 | 1.5 mm (0.06 in) |
| 1966 | 32.2 mm (1.3 in) |
| 1967 | 36.1 mm (1.4 in) |
| 1968 | 36.1 mm (1.4 in) |
| 1969 | 18.3 mm (0.7 in) |
| 1970 | 27.1 mm (1.1 in) |
| 1971 | 49.5 mm (1.9 in) |
| 1972 | 29.7 mm (1.2 in) |
| 1973 | 44.7 mm (1.8 in) |
| 1974 | 27.2 mm (1.1 in) |
| 1975 | 39.7 mm (1.6 in) |
| 1976 | 39.6 mm (1.6 in) |
| 1977 | 32.4 mm (1.3 in) |
| 1978 | 28.5 mm (1.1 in) |
| 1979 | 23.2 mm (0.9 in) |
| 1980 | 45.0 mm (1.8 in) |
| 1981 | 43.2 mm (1.7 in) |
| 1982 | 26.7 mm (1.1 in) |
| 1983 | 52.9 mm (2.1 in) |
| 1984 | 41.4 mm (1.6 in) |
| 1985 | 25.2 mm (1.0 in) |
| 1986 | 36.3 mm (1.4 in) |
| 1987 | 31.8 mm (1.3 in) |
| 1988 | 45.9 mm (1.8 in) |
| 1989 | 76.5 mm (3.0 in) |
| 1990 | 90.6 mm (3.6 in) |
| 1991 | 96.8 mm (3.8 in) |
| 1992 | 27.6 mm (1.1 in) |
| 1993 | 20.7 mm (0.8 in) |
| 1994 | 18.7 mm (0.7 in) |
| 1995 | 43.2 mm (1.7 in) |
| 1996 | 35.2 mm (1.4 in) |
| 1997 | 22.6 mm (0.9 in) |
| 1998 | 23.1 mm (0.9 in) |
| 1999 | 38.1 mm (1.5 in) |
| 2000 | 19.0 mm (0.7 in) |
| 2001 | 15.2 mm (0.6 in) |
| 2002 | 33.3 mm (1.3 in) |
| 2003 | 11.5 mm (0.5 in) |
| 2004 | 19.6 mm (0.8 in) |
| 2005 | 2.0 mm (0.08 in) |
| 2007 | 9.9 mm (0.39 in) |
| 2008 | 18.6 mm (0.7 in) |
| 2009 | 37.3 mm (1.5 in) |
| 2010 | 50.8 mm (2.0 in) |
| 2011 | 41.4 mm (1.6 in) |
| 2012 | 34.8 mm (1.4 in) |
| 2013 | 43.5 mm (1.7 in) |
| 2014 | 33.3 mm (1.3 in) |
| 2015 | 78.7 mm (3.1 in) |
| 2016 | 26.8 mm (1.1 in) |
| 2017 | 52.9 mm (2.1 in) |
| 2018 | 62.4 mm (2.5 in) |
| 2019 | 39.1 mm (1.5 in) |
| 2020 | 27.9 mm (1.1 in) |
| 2021 | 51.9 mm (2.0 in) |
| 2022 | 52.5 mm (2.1 in) |
| 2023 | 76.5 mm (3.0 in) |
| 2024 | 35.5 mm (1.4 in) |
| 2025 | 30.3 mm (1.2 in) |
| 2026 | 26.4 mm (1.0 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1965 | 16 days |
| 1966 | 36 days |
| 1967 | 45 days |
| 1968 | 42 days |
| 1969 | 79 days |
| 1970 | 34 days |
| 1971 | 56 days |
| 1972 | 40 days |
| 1973 | 37 days |
| 1974 | 72 days |
| 1975 | 43 days |
| 1976 | 57 days |
| 1977 | 24 days |
| 1978 | 43 days |
| 1979 | 32 days |
| 1980 | 63 days |
| 1981 | 41 days |
| 1982 | 34 days |
| 1983 | 64 days |
| 1984 | 72 days |
| 1985 | 27 days |
| 1986 | 28 days |
| 1987 | 91 days |
| 1988 | 37 days |
| 1989 | 53 days |
| 1990 | 75 days |
| 1991 | 46 days |
| 1992 | 49 days |
| 1993 | 51 days |
| 1994 | 60 days |
| 1995 | 80 days |
| 1996 | 25 days |
| 1997 | 58 days |
| 1998 | 41 days |
| 1999 | 32 days |
| 2000 | 45 days |
| 2001 | 14 days |
| 2002 | 14 days |
| 2003 | 30 days |
| 2004 | 20 days |
| 2005 | 18 days |
| 2007 | 38 days |
| 2008 | 23 days |
| 2009 | 57 days |
| 2010 | 86 days |
| 2011 | 37 days |
| 2012 | 30 days |
| 2013 | 41 days |
| 2014 | 48 days |
| 2015 | 56 days |
| 2016 | 35 days |
| 2017 | 60 days |
| 2018 | 68 days |
| 2019 | 43 days |
| 2020 | 40 days |
| 2021 | 26 days |
| 2022 | 32 days |
| 2023 | 24 days |
| 2024 | 26 days |
| 2025 | 30 days |
| 2026 | 47 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
37 years with a frostAcross 37 years with a frost, the median last spring frost at Glennallen Kcam falls on 18 June and the median first autumn frost on 28 July, which leaves a median of 35 days between them.
Fitted over all years, the growing season changes by +11.3 days per decade at this station.
| Measure | Median, all years | Earliest period | Recent period (1974 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 18 June | n/a | 17 June | n/a | -2.7 days per decade |
| First autumn frost | 28 July | n/a | 5 August | n/a | +8.7 days per decade |
| Growing days | 35 days | n/a | 44 days | n/a | +11.3 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
36 years, 1966 to 2025A day with at least 22.7 mm (0.9 in) of rain is expected about once in 2 years. A day with at least 90.2 mm (3.6 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 22.7 mm (0.9 in) | |
| 5 years | 33.4 mm (1.3 in) | |
| 10 years | 42.7 mm (1.7 in) | |
| 25 years | 58.0 mm (2.3 in) | |
| 50 years | 72.5 mm (2.9 in) | Longer than the 36 years of record |
| 100 years | 90.2 mm (3.6 in) | Longer than the 36 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, 36 years of values from 1966 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: 88.6 mm (3.5 in) in 1990; 48.3 mm (1.9 in) in 2017; 47.5 mm (1.9 in) in 1971.
Climate Twins
2011 to 2025 against 1961 to 1990Over 2011 to 2025, Glennallen Kcam had a mean temperature of -2.1 C (28.1 F) and 366.9 mm (14.4 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Big Delta AP (United States, 210 km away), Slana (United States, 104 km away) and College Obsy (United States, 327 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Big Delta AP | United States | 210 km (130 mi) | -2.3 C (27.8 F) | 301.5 mm (11.9 in) | 0.88 |
| Slana | United States | 104 km (65 mi) | -2.6 C (27.2 F) | 359.7 mm (14.2 in) | 1.24 |
| College Obsy | United States | 327 km (203 mi) | -2.5 C (27.5 F) | 309.9 mm (12.2 in) | 1.30 |
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
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).