Cheney Weather in September
Average highs run from 80°F on September 1 to 68°F on September 30, and lows from 39°F to 32°F. Normal precipitation for the month is 0.52 in over about 5 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
- 74°F
- Average low
- 35°F
- Precipitation
- 0.52 in
- Snowfall
- 0.1 in
- Record high
- 99°FSep 1, 2025
- Record low
- 22°FSep 23, 2000
- Chance of a freeze
- 98%
- Days of 90°F or more
- 1.7
- Daylight
- 13 h 21 min to 11 h 43 min
- Cloud cover
- 48%
- Humidity
- 54%
- Dew point
- 41°F
- Wind
- 6.9 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 | 80°F | 39°F | 99°F 2025 | 37°F 1959 | 13% | 0% |
| Sep 2 | 79°F | 38°F | 99°F 2025 | 37°F 1999 | 13% | 0% |
| Sep 3 | 79°F | 38°F | 98°F 1988 | 39°F 1980 | 13% | 0% |
| Sep 4 | 79°F | 38°F | 96°F 1988 | 36°F 1889 | 13% | 0% |
| Sep 5 | 79°F | 38°F | 96°F 1988 | 39°F 1965 | 14% | 0% |
| Sep 6 | 78°F | 37°F | 94°F 1944 | 33°F 1895 | 14% | 0% |
| Sep 7 | 78°F | 37°F | 96°F 2024 | 35°F 1976 | 14% | 0% |
| Sep 8 | 78°F | 37°F | 93°F 1944 | 33°F 1976 | 14% | 0% |
| Sep 9 | 77°F | 37°F | 93°F 1935 | 35°F 1964 | 14% | 0% |
| Sep 10 | 77°F | 36°F | 93°F 1963 | 32°F 1895 | 15% | 0% |
| Sep 11 | 77°F | 36°F | 94°F 1944 | 29°F 1889 | 15% | 0% |
| Sep 12 | 76°F | 36°F | 91°F 1908 | 33°F 1889 | 15% | 0% |
| Sep 13 | 76°F | 36°F | 92°F 2013 | 32°F 1970 | 16% | 0% |
| Sep 14 | 75°F | 35°F | 92°F 1938 | 26°F 1889 | 16% | 0% |
| Sep 15 | 75°F | 35°F | 93°F 1937 | 33°F 1970 | 16% | 0% |
| Sep 16 | 75°F | 35°F | 93°F 1938 | 28°F 1965 | 17% | 0% |
| Sep 17 | 74°F | 35°F | 93°F 1938 | 25°F 1965 | 17% | 0% |
| Sep 18 | 74°F | 34°F | 98°F 1938 | 32°F 1942 | 17% | 0% |
| Sep 19 | 73°F | 34°F | 92°F 1906 | 32°F 1983 | 18% | 0% |
| Sep 20 | 73°F | 34°F | 90°F 1939 | 32°F 1983 | 18% | 0% |
| Sep 21 | 72°F | 34°F | 92°F 1938 | 30°F 1895 | 18% | 0% |
| Sep 22 | 72°F | 33°F | 93°F 1966 | 31°F 1991 | 19% | 0% |
| Sep 23 | 72°F | 33°F | 91°F 1905 | 22°F 2000 | 19% | 0% |
| Sep 24 | 71°F | 33°F | 90°F 2011 | 22°F 1926 | 19% | 0% |
| Sep 25 | 71°F | 33°F | 93°F 1952 | 25°F 1926 | 20% | 0% |
| Sep 26 | 70°F | 33°F | 87°F 1952 | 28°F 1908 | 20% | 0% |
| Sep 27 | 69°F | 32°F | 90°F 2022 | 28°F 1972 | 21% | 1% |
| Sep 28 | 69°F | 32°F | 89°F 1967 | 27°F 1984 | 21% | 1% |
| Sep 29 | 68°F | 32°F | 86°F 1890 | 24°F 1985 | 22% | 1% |
| Sep 30 | 68°F | 32°F | 89°F 1992 | 29°F 1903 | 22% | 1% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- September 1
- sunrise 6:09 AM, sunset 7:30 PM
- September 30
- sunrise 6:48 AM, sunset 6:31 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USW00004136 (Spokane 17 Ssw), public domain. Records: NOAA GHCN-Daily, station USW00024157, 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.