Summit Creek Weather Records (USS0049L19S)
Record envelope, standing records and threshold days for Summit Creek (USS0049L19S), Alaska, United States, with 38 years of record.
Key Facts for Summit Creek
- Summit Creek (USS0049L19S) is a weather station in Alaska, United States at 60.62 latitude and -149.53 longitude, 427 m (1,400 ft) above sea level.
- The station reports from 1989 to 2026, 38 years of record.
- 1,464 records set at Summit Creek still stand.
- Records are tracked for prcp: an element needs 30 years of data to be eligible.
- Summit Creek set a daily record precipitation of 20.3 mm (0.8 in) on 15 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, 60.62 latitude, -149.53 longitude.
- Elevation: 427 m (1,400 ft).
- Period of record: 1989 to 2026, 38 years.
- Eligible elements: prcp.
Daily Record Envelope and 2026
22 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | 11.6 C (52.9 F) | -32.9 C (-27.2 F) | 5.6 C (42.1 F) | -30.6 C (-23.1 F) |
| Feb | 8.6 C (47.5 F) | -33.1 C (-27.6 F) | 4.4 C (39.9 F) | -30.0 C (-22.0 F) |
| Mar | 14.4 C (57.9 F) | -29.3 C (-20.7 F) | 2.2 C (36.0 F) | -28.9 C (-20.0 F) |
| Apr | 18.9 C (66.0 F) | -23.4 C (-10.1 F) | 8.9 C (48.0 F) | -15.6 C (3.9 F) |
| May | 25.3 C (77.5 F) | -8.8 C (16.2 F) | 15.0 C (59.0 F) | -3.3 C (26.1 F) |
| Jun | 32.6 C (90.7 F) | -3.6 C (25.5 F) | 25.0 C (77.0 F) | 0.0 C (32.0 F) |
| Jul | 32.3 C (90.1 F) | -1.9 C (28.6 F) | 24.4 C (75.9 F) | 0.0 C (32.0 F) |
| Aug | 30.4 C (86.7 F) | -2.4 C (27.7 F) | 25.0 C (77.0 F) | 1.1 C (34.0 F) |
| Sep | 23.1 C (73.6 F) | -8.9 C (16.0 F) | 18.3 C (64.9 F) | -2.8 C (27.0 F) |
| Oct | 15.6 C (60.1 F) | -19.8 C (-3.6 F) | 8.9 C (48.0 F) | -5.0 C (23.0 F) |
| Nov | 8.1 C (46.6 F) | -27.8 C (-18.0 F) | n/a | n/a |
| Dec | 7.8 C (46.0 F) | -31.1 C (-24.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 2001 | 36 |
| 2002 | 61 |
| 2003 | 69 |
| 2004 | 73 |
| 2005 | 45 |
| 2006 | 47 |
| 2007 | 64 |
| 2008 | 69 |
| 2009 | 52 |
| 2010 | 45 |
| 2011 | 40 |
| 2012 | 50 |
| 2013 | 76 |
| 2014 | 82 |
| 2015 | 71 |
| 2016 | 68 |
| 2017 | 45 |
| 2018 | 46 |
| 2019 | 75 |
| 2020 | 38 |
| 2021 | 71 |
| 2022 | 37 |
| 2023 | 36 |
| 2024 | 59 |
| 2025 | 62 |
| 2026 | 47 |
Wettest Day of Each Month
Oct: 111.8 mm (4.4 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 63.5 mm (2.5 in) | 12 January 2025 |
| Feb | 58.4 mm (2.3 in) | 4 February 2003 |
| Mar | 30.5 mm (1.2 in) | 13 March 2019 |
| Apr | 33.0 mm (1.3 in) | 19 April 2015 |
| May | 20.3 mm (0.8 in) | 29 May 1991 |
| Jun | 35.6 mm (1.4 in) | 18 June 2018 |
| Jul | 35.6 mm (1.4 in) | 15 July 2023 |
| Aug | 61.0 mm (2.4 in) | 28 August 2001 |
| Sep | 94.0 mm (3.7 in) | 20 September 1995 |
| Oct | 111.8 mm (4.4 in) | 2 October 2011 |
| Nov | 45.7 mm (1.8 in) | 23 November 2002 |
| Dec | 68.6 mm (2.7 in) | 1 December 2009 |
Period of Record Coverage
2001 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 2001 | 128 | 35% | No |
| 2002 | 270 | 74% | No |
| 2003 | 323 | 88% | No |
| 2004 | 313 | 86% | No |
| 2005 | 321 | 88% | No |
| 2006 | 330 | 90% | Yes |
| 2007 | 357 | 98% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 364 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 364 | 100% | Yes |
| 2015 | 360 | 99% | Yes |
| 2016 | 365 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 325 | 89% | No |
| 2020 | 366 | 100% | Yes |
| 2021 | 360 | 99% | Yes |
| 2022 | 364 | 100% | Yes |
| 2023 | 365 | 100% | Yes |
| 2024 | 359 | 98% | Yes |
| 2025 | 364 | 100% | Yes |
| 2026 | 285 | 78% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 15 September 2026 | Summit Creek, US | daily rain (Provisional) | 20.3 mm (0.8 in) | 5.1 mm (0.20 in) | 11 years | 12 of 100 (Routine) |
| 23 July 2026 | Summit Creek, US | daily rain (Tie) | 7.6 mm (0.30 in) | tie | 19 years | 2 of 100 (Routine) |
| 20 July 2026 | Summit Creek, US | daily rain | 17.8 mm (0.7 in) | 7.6 mm (0.30 in) | 16 years | 20 of 100 (Routine) |
| 19 July 2026 | Summit Creek, US | daily rain | 15.2 mm (0.6 in) | 5.0 mm (0.20 in) | 4 years | 13 of 100 (Routine) |
| 14 July 2026 | Summit Creek, US | daily rain | 12.7 mm (0.5 in) | 10.2 mm (0.4 in) | 36 years | 20 of 100 (Routine) |
| 12 July 2026 | Summit Creek, US | daily rain | 15.2 mm (0.6 in) | 7.6 mm (0.30 in) | 24 years | 20 of 100 (Routine) |
| 29 June 2026 | Summit Creek, US | daily rain (Tie) | 7.6 mm (0.30 in) | tie | 3 years | 0 of 100 (Routine) |
| 10 June 2026 | Summit Creek, US | daily rain | 5.1 mm (0.20 in) | 2.6 mm (0.10 in) | 32 years | 18 of 100 (Routine) |
| 12 April 2026 | Summit Creek, US | daily rain | 7.6 mm (0.30 in) | 2.5 mm (0.10 in) | 27 years | 17 of 100 (Routine) |
| 29 January 2026 | Summit Creek, US | daily rain | 17.8 mm (0.7 in) | 10.2 mm (0.4 in) | 6 years | 18 of 100 (Routine) |
| 15 January 2026 | Summit Creek, US | daily rain | 17.8 mm (0.7 in) | 2.6 mm (0.10 in) | 24 years | 13 of 100 (Routine) |
| 6 November 2025 | Summit Creek, US | daily rain | 17.8 mm (0.7 in) | 7.6 mm (0.30 in) | 32 years | 20 of 100 (Routine) |
| 1 November 2025 | Summit Creek, US | daily rain | 12.7 mm (0.5 in) | 5.1 mm (0.20 in) | 14 years | 14 of 100 (Routine) |
| 22 October 2025 | Summit Creek, US | daily rain | 22.9 mm (0.9 in) | 7.7 mm (0.30 in) | 23 years | 16 of 100 (Routine) |
| 10 September 2025 | Summit Creek, US | daily rain (Tie) | 10.2 mm (0.4 in) | tie | 16 years | 2 of 100 (Routine) |
| 14 July 2025 | Summit Creek, US | daily rain (Tie) | 2.5 mm (0.10 in) | tie | 35 years | 3 of 100 (Routine) |
| 9 June 2025 | Summit Creek, US | daily rain | 12.7 mm (0.5 in) | 7.6 mm (0.30 in) | 20 years | 20 of 100 (Routine) |
| 3 June 2025 | Summit Creek, US | daily rain | 5.1 mm (0.20 in) | 2.6 mm (0.10 in) | 32 years | 18 of 100 (Routine) |
| 12 May 2025 | Summit Creek, US | daily rain (Tie) | 7.6 mm (0.30 in) | tie | 31 years | 3 of 100 (Routine) |
| 16 April 2025 | Summit Creek, US | daily rain | 15.2 mm (0.6 in) | 10.1 mm (0.4 in) | 34 years | 20 of 100 (Routine) |
Climate Trend
22 complete years, 2003 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 2003 | 2.1 C | +0.95 C |
| 2004 | 2.3 C | +1.17 C |
| 2005 | 1.8 C | +0.66 C |
| 2006 | -0.6 C | -1.68 C |
| 2007 | -0.1 C | -1.17 C |
| 2008 | -0.9 C | -2.01 C |
| 2009 | 0.7 C | -0.42 C |
| 2010 | 1.1 C | +0.02 C |
| 2011 | 0.1 C | -0.99 C |
| 2012 | -0.8 C | -1.87 C |
| 2013 | 1.3 C | +0.20 C |
| 2014 | 2.5 C | +1.43 C |
| 2015 | 2.4 C | +1.26 C |
| 2016 | 3.8 C | +2.65 C |
| 2017 | 1.0 C | -0.14 C |
| 2018 | 2.2 C | +1.07 C |
| 2020 | 0.5 C | -0.57 C |
| 2021 | -0.1 C | -1.18 C |
| 2022 | 1.3 C | +0.17 C |
| 2023 | 0.8 C | -0.32 C |
| 2024 | 1.1 C | -0.03 C |
| 2025 | 1.9 C | +0.74 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
1989 to 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 32.6 C (90.7 F) | 2004 | 26.8 C (80.2 F) | 26 |
| Coldest night (TNn) | -33.1 C (-27.6 F) | 2008 | -28.6 C (-19.5 F) | 26 |
| Wettest day (Rx1day) | 111.8 mm (4.4 in) | 2011 | 45.7 mm (1.8 in) | 38 |
| Wettest five days (Rx5day) | 149.9 mm (5.9 in) | 2011 | 85.2 mm (3.4 in) | 38 |
| Longest dry spell (CDD) | 50 days | 1995 | 21 days | 38 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1989 | n/a |
| 1990 | n/a |
| 1991 | n/a |
| 1992 | n/a |
| 1993 | n/a |
| 1994 | n/a |
| 1995 | n/a |
| 1996 | n/a |
| 1997 | n/a |
| 1998 | n/a |
| 1999 | n/a |
| 2000 | n/a |
| 2001 | 27.3 C (81.1 F) |
| 2002 | 28.2 C (82.8 F) |
| 2003 | 30.7 C (87.3 F) |
| 2004 | 32.6 C (90.7 F) |
| 2005 | 28.1 C (82.6 F) |
| 2006 | 24.6 C (76.3 F) |
| 2007 | 26.8 C (80.2 F) |
| 2008 | 22.1 C (71.8 F) |
| 2009 | 29.1 C (84.4 F) |
| 2010 | 23.3 C (73.9 F) |
| 2011 | 24.8 C (76.6 F) |
| 2012 | 25.9 C (78.6 F) |
| 2013 | 30.7 C (87.3 F) |
| 2014 | 26.2 C (79.2 F) |
| 2015 | 28.6 C (83.5 F) |
| 2016 | 28.1 C (82.6 F) |
| 2017 | 26.8 C (80.2 F) |
| 2018 | 27.8 C (82.0 F) |
| 2019 | 32.3 C (90.1 F) |
| 2020 | 26.1 C (79.0 F) |
| 2021 | 28.9 C (84.0 F) |
| 2022 | 26.1 C (79.0 F) |
| 2023 | 24.4 C (75.9 F) |
| 2024 | 25.6 C (78.1 F) |
| 2025 | 25.6 C (78.1 F) |
| 2026 | 25.0 C (77.0 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1989 | n/a |
| 1990 | n/a |
| 1991 | n/a |
| 1992 | n/a |
| 1993 | n/a |
| 1994 | n/a |
| 1995 | n/a |
| 1996 | n/a |
| 1997 | n/a |
| 1998 | n/a |
| 1999 | n/a |
| 2000 | n/a |
| 2001 | -30.6 C (-23.1 F) |
| 2002 | -25.6 C (-14.1 F) |
| 2003 | -27.1 C (-16.8 F) |
| 2004 | -31.4 C (-24.5 F) |
| 2005 | -27.4 C (-17.3 F) |
| 2006 | -31.8 C (-25.2 F) |
| 2007 | -32.8 C (-27.0 F) |
| 2008 | -33.1 C (-27.6 F) |
| 2009 | -32.9 C (-27.2 F) |
| 2010 | -26.2 C (-15.2 F) |
| 2011 | -31.0 C (-23.8 F) |
| 2012 | -30.8 C (-23.4 F) |
| 2013 | -29.8 C (-21.6 F) |
| 2014 | -23.7 C (-10.7 F) |
| 2015 | -24.2 C (-11.6 F) |
| 2016 | -22.8 C (-9.0 F) |
| 2017 | -27.0 C (-16.6 F) |
| 2018 | -25.8 C (-14.4 F) |
| 2019 | -26.2 C (-15.2 F) |
| 2020 | -28.9 C (-20.0 F) |
| 2021 | -31.1 C (-24.0 F) |
| 2022 | -27.8 C (-18.0 F) |
| 2023 | -28.3 C (-18.9 F) |
| 2024 | -32.8 C (-27.0 F) |
| 2025 | -27.8 C (-18.0 F) |
| 2026 | -30.6 C (-23.1 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1989 | 55.9 mm (2.2 in) |
| 1990 | 30.5 mm (1.2 in) |
| 1991 | 35.6 mm (1.4 in) |
| 1992 | 40.6 mm (1.6 in) |
| 1993 | 27.9 mm (1.1 in) |
| 1994 | 20.3 mm (0.8 in) |
| 1995 | 94.0 mm (3.7 in) |
| 1996 | 38.1 mm (1.5 in) |
| 1997 | 27.9 mm (1.1 in) |
| 1998 | 45.7 mm (1.8 in) |
| 1999 | 53.3 mm (2.1 in) |
| 2000 | 25.4 mm (1.0 in) |
| 2001 | 61.0 mm (2.4 in) |
| 2002 | 48.3 mm (1.9 in) |
| 2003 | 58.4 mm (2.3 in) |
| 2004 | 35.6 mm (1.4 in) |
| 2005 | 27.9 mm (1.1 in) |
| 2006 | 50.8 mm (2.0 in) |
| 2007 | 40.6 mm (1.6 in) |
| 2008 | 50.8 mm (2.0 in) |
| 2009 | 68.6 mm (2.7 in) |
| 2010 | 61.0 mm (2.4 in) |
| 2011 | 111.8 mm (4.4 in) |
| 2012 | 58.4 mm (2.3 in) |
| 2013 | 61.0 mm (2.4 in) |
| 2014 | 35.6 mm (1.4 in) |
| 2015 | 38.1 mm (1.5 in) |
| 2016 | 55.9 mm (2.2 in) |
| 2017 | 27.9 mm (1.1 in) |
| 2018 | 50.8 mm (2.0 in) |
| 2019 | 66.0 mm (2.6 in) |
| 2020 | 33.0 mm (1.3 in) |
| 2021 | 55.9 mm (2.2 in) |
| 2022 | 22.9 mm (0.9 in) |
| 2023 | 45.7 mm (1.8 in) |
| 2024 | 20.3 mm (0.8 in) |
| 2025 | 63.5 mm (2.5 in) |
| 2026 | 20.3 mm (0.8 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1989 | 86.4 mm (3.4 in) |
| 1990 | 68.5 mm (2.7 in) |
| 1991 | 53.3 mm (2.1 in) |
| 1992 | 83.9 mm (3.3 in) |
| 1993 | 45.7 mm (1.8 in) |
| 1994 | 40.7 mm (1.6 in) |
| 1995 | 139.7 mm (5.5 in) |
| 1996 | 55.8 mm (2.2 in) |
| 1997 | 73.6 mm (2.9 in) |
| 1998 | 58.4 mm (2.3 in) |
| 1999 | 88.9 mm (3.5 in) |
| 2000 | 76.2 mm (3.0 in) |
| 2001 | 104.1 mm (4.1 in) |
| 2002 | 101.6 mm (4.0 in) |
| 2003 | 121.9 mm (4.8 in) |
| 2004 | 99.1 mm (3.9 in) |
| 2005 | 56.0 mm (2.2 in) |
| 2006 | 83.8 mm (3.3 in) |
| 2007 | 93.9 mm (3.7 in) |
| 2008 | 88.9 mm (3.5 in) |
| 2009 | 119.3 mm (4.7 in) |
| 2010 | 116.9 mm (4.6 in) |
| 2011 | 149.9 mm (5.9 in) |
| 2012 | 114.3 mm (4.5 in) |
| 2013 | 81.2 mm (3.2 in) |
| 2014 | 61.1 mm (2.4 in) |
| 2015 | 63.4 mm (2.5 in) |
| 2016 | 93.9 mm (3.7 in) |
| 2017 | 58.4 mm (2.3 in) |
| 2018 | 114.3 mm (4.5 in) |
| 2019 | 104.1 mm (4.1 in) |
| 2020 | 76.1 mm (3.0 in) |
| 2021 | 104.2 mm (4.1 in) |
| 2022 | 73.8 mm (2.9 in) |
| 2023 | 91.4 mm (3.6 in) |
| 2024 | 45.6 mm (1.8 in) |
| 2025 | 99.1 mm (3.9 in) |
| 2026 | 53.3 mm (2.1 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1989 | 13 days |
| 1990 | 17 days |
| 1991 | 17 days |
| 1992 | 29 days |
| 1993 | 19 days |
| 1994 | 22 days |
| 1995 | 50 days |
| 1996 | 24 days |
| 1997 | 18 days |
| 1998 | 19 days |
| 1999 | 17 days |
| 2000 | 23 days |
| 2001 | 26 days |
| 2002 | 22 days |
| 2003 | 18 days |
| 2004 | 20 days |
| 2005 | 34 days |
| 2006 | 18 days |
| 2007 | 22 days |
| 2008 | 12 days |
| 2009 | 21 days |
| 2010 | 18 days |
| 2011 | 26 days |
| 2012 | 28 days |
| 2013 | 14 days |
| 2014 | 23 days |
| 2015 | 23 days |
| 2016 | 14 days |
| 2017 | 25 days |
| 2018 | 18 days |
| 2019 | 36 days |
| 2020 | 18 days |
| 2021 | 22 days |
| 2022 | 21 days |
| 2023 | 16 days |
| 2024 | 26 days |
| 2025 | 24 days |
| 2026 | 19 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
22 years with a frostAcross 22 years with a frost, the median last spring frost at Summit Creek falls on 14 June and the median first autumn frost on 30 August, which leaves a median of 81 days between them.
| Measure | Median, all years | Earliest period | Recent period (2003 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 14 June | n/a | 14 June | n/a | n/a |
| First autumn frost | 30 August | n/a | 30 August | n/a | n/a |
| Growing days | 81 days | n/a | 81 days | n/a | n/a |
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, 1990 to 2025A day with at least 43.8 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 108.3 mm (4.3 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 43.8 mm (1.7 in) | |
| 5 years | 61.2 mm (2.4 in) | |
| 10 years | 72.7 mm (2.9 in) | |
| 25 years | 87.2 mm (3.4 in) | |
| 50 years | 97.8 mm (3.9 in) | Longer than the 36 years of record |
| 100 years | 108.3 mm (4.3 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 1990 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: 111.8 mm (4.4 in) in 2011; 94.0 mm (3.7 in) in 1995; 68.6 mm (2.7 in) in 2009.
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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.
Data as of . Last revised (2026-10-16).