Weather on September 20 at Denali
Denali National Park and Preserve
Based on 54 years of data from Fairbanks, AK
Elevation Note: Denali sits at 1,700 ft. Expect temperatures 6°F cooler than the data shown below, which comes from Fairbanks, AK at a lower elevation.
Planning Your Visit
September 20th in Denali National Park (via Fairbanks, AK) typically brings cool fall weather, with average highs around 53°F and lows near 34°F. Over 54 years of records, the warmest September 20th was in 1995 (68°F average), while the coldest was 1992 (28°F) — a 40°F range across recorded history. Rain or other precipitation has occurred on about 13% of September 20th dates historically. The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
The last decade has been 1.7°F warmer on this date compared to 20-30 years ago.
Planning for September 20th in Denali? Bring layers as temperatures can vary throughout the day.
Year by Year History
| Year | High | Low | Precip | Snow |
|---|---|---|---|---|
| 2025 | 59°F | 46°F | -- | -- |
| 2024 | 47°F | 39°F | -- | -- |
| 2023 | 44°F | 38°F | -- | -- |
| 2022 | 48°F | 31°F | -- | -- |
| 2021 | 40°F | 30°F | -- | -- |
| 2020 | 51°F | 31°F | -- | -- |
| 2019 | 54°F | 42°F | -- | -- |
| 2018 | 51°F | 39°F | -- | -- |
| 2017 | 46°F | 31°F | -- | -- |
| 2016 | 65°F | 38°F | -- | -- |
| 2015 | 50°F | 29°F | -- | -- |
| 2014 | 49°F | 42°F | -- | -- |
| 2013 | 40°F | 16°F | -- | -- |
| 2012 | 53°F | 42°F | -- | -- |
| 2011 | 66°F | 49°F | -- | -- |
| 2010 | 67°F | 34°F | -- | -- |
| 2009 | 53°F | 31°F | -- | -- |
| 2008 | 51°F | 28°F | -- | -- |
| 2007 | 56°F | 40°F | -- | -- |
| 2006 | 57°F | 32°F | -- | -- |
| 2005 | 50°F | 36°F | -- | -- |
| 2004 | 56°F | 39°F | -- | -- |
| 2003 | 48°F | 23°F | -- | -- |
| 2002 | 38°F | 26°F | -- | -- |
| 2001 | 67°F | 28°F | -- | -- |
| 2000 | 64°F | 27°F | -- | -- |
| 1999 | 68°F | 25°F | -- | -- |
| 1998 | 56°F | 41°F | -- | -- |
| 1997 | 54°F | 17°F | -- | -- |
| 1996 | 46°F | 31°F | -- | -- |
| 1995 | 72°F | 65°F | -- | -- |
| 1994 | 60°F | 44°F | -- | -- |
| 1993 | 58°F | 41°F | -- | -- |
| 1992 | 39°F | 18°F | -- | -- |
| 1991 | 52°F | 33°F | 0.08" | 0" |
| 1990 | 61°F | 41°F | -- | -- |
| 1989 | 40°F | 31°F | -- | -- |
| 1988 | 58°F | 40°F | 0" | 0" |
| 1987 | 44°F | 39°F | 0.28" | 0" |
| 1986 | 55°F | 31°F | 0.33" | 0" |
| 1984 | 49°F | 32°F | 0" | 0" |
| 1983 | 58°F | 42°F | 0" | 0" |
| 1982 | 60°F | 31°F | 0" | 0" |
| 1981 | 42°F | 32°F | 0.28" | 0" |
| 1980 | 40°F | 29°F | 0" | 0" |
| 1979 | 60°F | 32°F | 0" | 0" |
| 1978 | 41°F | 33°F | 0.05" | 0" |
| 1977 | 46°F | 30°F | 0" | 0" |
| 1976 | 61°F | 32°F | 0" | 0" |
| 1975 | 56°F | 34°F | 0.03" | 0" |
| 1974 | 66°F | 40°F | 0" | 0" |
| 1973 | 50°F | 37°F | 0" | 0" |
| 1972 | 43°F | 15°F | 0" | 0" |
| 1971 | 49°F | 37°F | 0.15" | 0" |