Copper River Census Area Weather in September
Average highs run from 60°F on September 1 to 49°F on September 30, and lows from 37°F to 27°F. Normal precipitation for the month is 1.41 in over about 9 wet days.
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
- 55°F
- Average low
- 32°F
- Precipitation
- 1.41 in
- Record high
- 76°FSep 4, 1917
- Record low
- 2°FSep 23, 1992
- Chance of a freeze
- 100%
- Daylight
- 14 h 18 min to 11 h 27 min
- Cloud cover
- 72%
- Humidity
- 80%
- Dew point
- 36°F
- Wind
- 7.4 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 | 60°F | 37°F | 74°F 1974 | 17°F 1987 | 34% |
| Sep 2 | 60°F | 36°F | 72°F 1974 | 20°F 1944 | 34% |
| Sep 3 | 59°F | 36°F | 74°F 1917 | 22°F 1944 | 33% |
| Sep 4 | 59°F | 36°F | 76°F 1917 | 22°F 1980 | 33% |
| Sep 5 | 59°F | 35°F | 74°F 1917 | 22°F 1917 | 33% |
| Sep 6 | 58°F | 35°F | 73°F 1917 | 19°F 1996 | 33% |
| Sep 7 | 58°F | 35°F | 74°F 1917 | 20°F 2004 | 32% |
| Sep 8 | 58°F | 34°F | 71°F 2019 | 18°F 1974 | 32% |
| Sep 9 | 57°F | 34°F | 74°F 1989 | 18°F 1970 | 32% |
| Sep 10 | 57°F | 34°F | 74°F 1989 | 18°F 1970 | 31% |
| Sep 11 | 57°F | 34°F | 69°F 1965 | 15°F 1992 | 31% |
| Sep 12 | 56°F | 33°F | 71°F 1956 | 15°F 1992 | 31% |
| Sep 13 | 56°F | 33°F | 70°F 2014 | 19°F 2004 | 31% |
| Sep 14 | 56°F | 33°F | 70°F 2019 | 21°F 2020 | 30% |
| Sep 15 | 55°F | 32°F | 70°F 2010 | 13°F 2004 | 30% |
| Sep 16 | 55°F | 32°F | 68°F 1986 | 11°F 2003 | 30% |
| Sep 17 | 55°F | 32°F | 68°F 2010 | 11°F 2003 | 29% |
| Sep 18 | 54°F | 31°F | 68°F 2010 | 11°F 2004 | 29% |
| Sep 19 | 54°F | 31°F | 62°F 2012 | 10°F 1914 | 29% |
| Sep 20 | 53°F | 31°F | 72°F 1995 | 16°F 1947 | 28% |
| Sep 21 | 53°F | 30°F | 64°F 2012 | 19°F 1967 | 28% |
| Sep 22 | 53°F | 30°F | 66°F 2012 | 8°F 1992 | 28% |
| Sep 23 | 52°F | 30°F | 65°F 1952 | 2°F 1992 | 28% |
| Sep 24 | 52°F | 29°F | 58°F 1967 | 7°F 1992 | 27% |
| Sep 25 | 51°F | 29°F | 59°F 1965 | 8°F 1992 | 27% |
| Sep 26 | 51°F | 29°F | 61°F 1944 | 8°F 1986 | 27% |
| Sep 27 | 50°F | 28°F | 61°F 1985 | 5°F 1983 | 26% |
| Sep 28 | 50°F | 28°F | 59°F 2015 | 3°F 2010 | 26% |
| Sep 29 | 49°F | 27°F | 67°F 2003 | 12°F 1974 | 25% |
| Sep 30 | 49°F | 27°F | 63°F 1954 | 12°F 1919 | 25% |
Chance of rain
- Chance of a wet day
Sunrise and sunset
Times for 2026, local time (AKDT).
- September 1
- sunrise 6:32 AM, sunset 8:50 PM
- September 30
- sunrise 7:48 AM, sunset 7:15 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00503304 (Gennallen Kcam), public domain. Records: NOAA GHCN-Daily, station USW00026425, 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.