Hayfork Weather in September
Average highs run from 93°F on September 1 to 84°F on September 30, and lows from 50°F to 44°F. Normal precipitation for the month is 0.44 in over about 2 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
- 89°F
- Average low
- 47°F
- Precipitation
- 0.44 in
- Record high
- 111°FSep 3, 1988
- Record low
- 23°FSep 30, 1950
- Chance of a freeze
- 0%
- Days of 90°F or more
- 18.0
- Daylight
- 13 h 04 min to 11 h 48 min
- Cloud cover
- 21%
- Humidity
- 40%
- Dew point
- 35°F
- Wind
- 3.6 mph
Every day of the month
A wet day has at least 0.01 inch of precipitation; snow means at least 0.1 inch of snowfall.
| Date | Normal high | Normal low | Record high | Record low | Chance wet | Chance of snow |
|---|---|---|---|---|---|---|
| Sep 1 | 93°F | 50°F | 107°F 1938 | 30°F 1929 | 4% | 0% |
| Sep 2 | 93°F | 50°F | 109°F 1988 | 32°F 1929 | 5% | 0% |
| Sep 3 | 92°F | 50°F | 111°F 1988 | 32°F 1929 | 5% | 0% |
| Sep 4 | 92°F | 50°F | 110°F 1955 | 34°F 1929 | 5% | 0% |
| Sep 5 | 92°F | 49°F | 111°F 1988 | 33°F 1933 | 5% | 0% |
| Sep 6 | 92°F | 49°F | 110°F 1955 | 33°F 1929 | 5% | 0% |
| Sep 7 | 92°F | 49°F | 104°F 1986 | 25°F 1929 | 5% | 0% |
| Sep 8 | 91°F | 49°F | 104°F 1932 | 28°F 1929 | 6% | 0% |
| Sep 9 | 91°F | 49°F | 110°F 1932 | 27°F 1929 | 6% | 0% |
| Sep 10 | 91°F | 49°F | 106°F 1932 | 27°F 1929 | 6% | 0% |
| Sep 11 | 91°F | 48°F | 104°F 2015 | 28°F 1929 | 6% | 0% |
| Sep 12 | 90°F | 48°F | 104°F 1945 | 31°F 1966 | 6% | 0% |
| Sep 13 | 90°F | 48°F | 108°F 1932 | 28°F 1956 | 6% | 0% |
| Sep 14 | 90°F | 48°F | 107°F 1938 | 26°F 1970 | 7% | 0% |
| Sep 15 | 90°F | 48°F | 108°F 1929 | 29°F 1939 | 7% | 0% |
| Sep 16 | 89°F | 47°F | 103°F 1981 | 30°F 1939 | 7% | 0% |
| Sep 17 | 89°F | 47°F | 102°F 1917 | 29°F 1946 | 7% | 0% |
| Sep 18 | 89°F | 47°F | 105°F 1991 | 29°F 1965 | 7% | 0% |
| Sep 19 | 88°F | 47°F | 105°F 1991 | 28°F 1965 | 8% | 0% |
| Sep 20 | 88°F | 46°F | 103°F 1991 | 25°F 1924 | 8% | 0% |
| Sep 21 | 88°F | 46°F | 103°F 1919 | 27°F 1941 | 8% | 0% |
| Sep 22 | 87°F | 46°F | 104°F 1919 | 25°F 1924 | 8% | 0% |
| Sep 23 | 87°F | 46°F | 104°F 1987 | 28°F 1931 | 9% | 0% |
| Sep 24 | 87°F | 45°F | 103°F 1919 | 24°F 1958 | 9% | 0% |
| Sep 25 | 86°F | 45°F | 103°F 1919 | 25°F 1926 | 9% | 0% |
| Sep 26 | 86°F | 45°F | 104°F 2009 | 24°F 1924 | 9% | 0% |
| Sep 27 | 85°F | 45°F | 102°F 2003 | 25°F 1924 | 10% | 0% |
| Sep 28 | 85°F | 44°F | 102°F 1987 | 25°F 1922 | 10% | 0% |
| Sep 29 | 84°F | 44°F | 100°F 2010 | 25°F 1950 | 10% | 0% |
| Sep 30 | 84°F | 44°F | 101°F 1966 | 23°F 1950 | 11% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- September 1
- sunrise 6:40 AM, sunset 7:44 PM
- September 30
- sunrise 7:08 AM, sunset 6:56 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00040738 (Big Bar 4 E), public domain. Records: NOAA GHCN-Daily, station USC00049490, 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.