Coulee City Weather in September
Average highs run from 81°F on September 1 to 70°F on September 30, and lows from 52°F to 43°F. Normal precipitation for the month is 0.34 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
- 76°F
- Average low
- 48°F
- Precipitation
- 0.34 in
- Record high
- 106°FSep 3, 1988
- Record low
- 28°FSep 23, 2000
- Chance of a freeze
- 17%
- Days of 90°F or more
- 2.5
- Daylight
- 13 h 21 min to 11 h 43 min
- Cloud cover
- 43%
- Humidity
- 50%
- Dew point
- 41°F
- Wind
- 6.9 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 | 81°F | 52°F | 100°F 1987 | 41°F 1980 | |
| Sep 2 | 81°F | 52°F | 101°F 1950 | 42°F 1973 | |
| Sep 3 | 81°F | 52°F | 106°F 1988 | 42°F 2016 | |
| Sep 4 | 81°F | 52°F | 102°F 1988 | 40°F 2002 | |
| Sep 5 | 80°F | 51°F | 98°F 1955 | 45°F 1969 | |
| Sep 6 | 80°F | 51°F | 98°F 2024 | 41°F 1996 | |
| Sep 7 | 80°F | 51°F | 99°F 2024 | 38°F 1992 | |
| Sep 8 | 79°F | 50°F | 97°F 2011 | 38°F 2002 | |
| Sep 9 | 79°F | 50°F | 98°F 2011 | 42°F 1970 | |
| Sep 10 | 79°F | 50°F | 99°F 2011 | 44°F 2003 | |
| Sep 11 | 78°F | 50°F | 99°F 1953 | 41°F 1988 | |
| Sep 12 | 78°F | 49°F | 97°F 2013 | 39°F 1984 | |
| Sep 13 | 78°F | 49°F | 98°F 2013 | 36°F 1970 | |
| Sep 14 | 77°F | 49°F | 96°F 2000 | 38°F 1970 | |
| Sep 15 | 77°F | 48°F | 94°F 1967 | 37°F 1970 | |
| Sep 16 | 76°F | 48°F | 96°F 1981 | 38°F 1965 | |
| Sep 17 | 76°F | 48°F | 98°F 1981 | 34°F 1965 | |
| Sep 18 | 76°F | 47°F | 99°F 1981 | 33°F 1988 | |
| Sep 19 | 75°F | 47°F | 97°F 1967 | 33°F 1957 | |
| Sep 20 | 75°F | 47°F | 93°F 1967 | 34°F 1983 | |
| Sep 21 | 74°F | 46°F | 94°F 1967 | 36°F 1996 | |
| Sep 22 | 74°F | 46°F | 96°F 1966 | 35°F 1956 | |
| Sep 23 | 74°F | 46°F | 92°F 1987 | 28°F 2000 | |
| Sep 24 | 73°F | 45°F | 91°F 1952 | 33°F 1958 | |
| Sep 25 | 73°F | 45°F | 92°F 1952 | 34°F 1970 | |
| Sep 26 | 72°F | 45°F | 90°F 1952 | 33°F 1972 | |
| Sep 27 | 72°F | 44°F | 94°F 1994 | 35°F 1972 | |
| Sep 28 | 71°F | 44°F | 94°F 1963 | 35°F 1985 | |
| Sep 29 | 71°F | 44°F | 88°F 1989 | 30°F 1972 | |
| Sep 30 | 70°F | 43°F | 86°F 2008 | 31°F 2019 |
Chance of rain
Sunrise and sunset
Times for 2026, local time (PDT).
- September 1
- sunrise 6:16 AM, sunset 7:37 PM
- September 30
- sunrise 6:55 AM, sunset 6:38 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00453529 (Hartline), public domain. Records: NOAA GHCN-Daily, station USW00024141, 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.