Denali Borough Weather in September
Average highs run from 56°F on September 1 to 42°F on September 30, and lows from 39°F to 27°F. Normal precipitation for the month is 2.23 in.
September day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
September at a glance
- Average high
- 50°F
- Average low
- 33°F
- Precipitation
- 2.23 in
- Record high
- 76°FSep 1, 1974
- Record low
- -6°FSep 23, 1992
- Chance of a freeze
- 99%
- Daylight
- 14 h 29 min to 11 h 25 min
- Cloud cover
- 71%
- Humidity
- 86%
- Dew point
- 37°F
- Wind
- 5.6 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation.
| Date | Normal high | Normal low | Record high | Record low | Chance wet |
|---|---|---|---|---|---|
| Sep 1 | 56°F | 39°F | 76°F 1974 | 22°F 1987 | |
| Sep 2 | 56°F | 38°F | 70°F 1963 | 20°F 1968 | |
| Sep 3 | 55°F | 38°F | 76°F 1978 | 20°F 1968 | |
| Sep 4 | 55°F | 38°F | 69°F 1937 | 18°F 1980 | |
| Sep 5 | 55°F | 37°F | 76°F 1957 | 18°F 1976 | |
| Sep 6 | 54°F | 37°F | 70°F 1937 | 20°F 1962 | |
| Sep 7 | 54°F | 37°F | 67°F 2009 | 18°F 1952 | |
| Sep 8 | 53°F | 36°F | 70°F 1940 | 12°F 1952 | |
| Sep 9 | 53°F | 36°F | 72°F 1940 | 10°F 1970 | |
| Sep 10 | 53°F | 36°F | 75°F 1929 | 18°F 1966 | |
| Sep 11 | 52°F | 35°F | 74°F 1929 | 17°F 1992 | |
| Sep 12 | 52°F | 35°F | 74°F 1965 | 16°F 1932 | |
| Sep 13 | 51°F | 35°F | 70°F 1929 | 20°F 1932 | |
| Sep 14 | 51°F | 34°F | 72°F 1929 | 11°F 1987 | |
| Sep 15 | 50°F | 34°F | 71°F 1929 | 11°F 1987 | |
| Sep 16 | 50°F | 33°F | 69°F 1967 | 0°F 1992 | |
| Sep 17 | 49°F | 33°F | 70°F 1967 | 0°F 1992 | |
| Sep 18 | 49°F | 33°F | 68°F 1995 | 11°F 1948 | |
| Sep 19 | 48°F | 32°F | 68°F 1995 | 5°F 1939 | |
| Sep 20 | 48°F | 32°F | 70°F 1926 | 4°F 1939 | |
| Sep 21 | 47°F | 31°F | 73°F 1995 | 8°F 1932 | |
| Sep 22 | 47°F | 31°F | 68°F 1929 | 5°F 1932 | |
| Sep 23 | 46°F | 31°F | 66°F 2012 | -6°F 1992 | |
| Sep 24 | 46°F | 30°F | 66°F 1940 | -5°F 1992 | |
| Sep 25 | 45°F | 30°F | 63°F 1934 | -5°F 1992 | |
| Sep 26 | 45°F | 29°F | 63°F 1966 | -3°F 1992 | |
| Sep 27 | 44°F | 29°F | 61°F 1942 | -1°F 1992 | |
| Sep 28 | 43°F | 28°F | 59°F 1942 | 2°F 1923 | |
| Sep 29 | 43°F | 28°F | 64°F 1942 | 2°F 1981 | |
| Sep 30 | 42°F | 27°F | 62°F 1936 | -2°F 1992 |
Chance of rain
Sunrise and sunset
Times for 2026, local time (AKDT).
- September 1
- sunrise 6:45 AM, sunset 9:14 PM
- September 30
- sunrise 8:07 AM, sunset 7:32 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00096408 (Denali 27 N), public domain. Records: NOAA GHCN-Daily, station USC00505778, every year on file, quality-flagged values removed. Cloud, humidity, wind and sunshine: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.