Weather on September 21 at Kobuk Valley
Kobuk Valley National Park
AKAlaska100 ft elevation
Avg High52°F
Avg Low33°F
Warmest199570°F
Coldest199227°F
Based on 55 years of data from Fairbanks, AK
Planning Your Visit
September 21st in Kobuk Valley National Park (via Fairbanks, AK) typically brings cool fall weather, with average highs around 52°F and lows near 33°F. Over 55 years of records, the warmest September 21st was in 1995 (70°F average), while the coldest was 1992 (27°F) — a 43°F range across recorded history. Rain or other precipitation has occurred on about 15% of September 21st dates historically. The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.2°F warmer on this date compared to 20-30 years ago.
Planning for September 21st in Kobuk Valley? Bring layers as temperatures can vary throughout the day.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 55°F | 43°F | -- | -- |
| 2024 | 44°F | 39°F | -- | -- |
| 2023 | 45°F | 37°F | -- | -- |
| 2022 | 43°F | 30°F | -- | -- |
| 2021 | 37°F | 24°F | -- | -- |
| 2020 | 57°F | 28°F | -- | -- |
| 2019 | 43°F | 36°F | -- | -- |
| 2018 | 53°F | 45°F | -- | -- |
| 2017 | 54°F | 36°F | -- | -- |
| 2016 | 61°F | 49°F | -- | -- |
| 2015 | 41°F | 24°F | -- | -- |
| 2014 | 45°F | 32°F | -- | -- |
| 2013 | 44°F | 22°F | -- | -- |
| 2012 | 62°F | 45°F | -- | -- |
| 2011 | 69°F | 40°F | -- | -- |
| 2010 | 65°F | 25°F | -- | -- |
| 2009 | 55°F | 38°F | -- | -- |
| 2008 | 50°F | 23°F | -- | -- |
| 2007 | 48°F | 23°F | -- | -- |
| 2006 | 63°F | 39°F | -- | -- |
| 2005 | 48°F | 36°F | -- | -- |
| 2004 | 47°F | 31°F | -- | -- |
| 2003 | 41°F | 28°F | -- | -- |
| 2002 | 53°F | 27°F | -- | -- |
| 2001 | 66°F | 33°F | -- | -- |
| 2000 | 59°F | 40°F | -- | -- |
| 1999 | 59°F | 26°F | -- | -- |
| 1998 | 54°F | 36°F | -- | -- |
| 1997 | 60°F | 23°F | -- | -- |
| 1996 | 35°F | 30°F | -- | -- |
| 1995 | 79°F | 61°F | -- | -- |
| 1994 | 61°F | 33°F | -- | -- |
| 1993 | 49°F | 32°F | -- | -- |
| 1992 | 32°F | 21°F | -- | -- |
| 1991 | 61°F | 31°F | -- | -- |
| 1990 | 60°F | 36°F | -- | -- |
| 1989 | 53°F | 36°F | 0" | 0" |
| 1988 | 45°F | 39°F | 0.03" | 0" |
| 1987 | 51°F | 34°F | 0.03" | 0" |
| 1986 | 44°F | 27°F | 0" | 0" |
| 1985 | 40°F | 29°F | 0.15" | 0" |
| 1984 | 53°F | 27°F | 0" | 0" |
| 1983 | 50°F | 40°F | 0.05" | 0" |
| 1982 | 61°F | 27°F | 0" | 0" |
| 1981 | 41°F | 33°F | 0.38" | 0" |
| 1980 | 42°F | 27°F | 0" | 0" |
| 1979 | 53°F | 37°F | 0.23" | 0" |
| 1978 | 41°F | 28°F | 0.25" | 0" |
| 1977 | 57°F | 41°F | 0.1" | 0" |
| 1976 | 58°F | 27°F | 0" | 0" |
| 1975 | 54°F | 36°F | 0" | 0" |
| 1974 | 58°F | 40°F | 0" | 0" |
| 1973 | 47°F | 31°F | 0" | 0" |
| 1972 | 44°F | 14°F | 0" | 0" |
| 1971 | 54°F | 32°F | 0" | 0" |
September 21 at Nearby Parks
Holiday Weather at Kobuk Valley
Official NPS WebsiteVisit nps.gov/kova for park information, alerts, and reservations
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