Sheridan Weather in September
Average highs run from 75°F on September 1 to 62°F on September 30, and lows from 46°F to 37°F. Normal precipitation for the month is 1.21 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
- 69°F
- Average low
- 42°F
- Precipitation
- 1.21 in
- Snowfall
- 0.2 in
- Record high
- 98°FSep 3, 2017
- Record low
- 10°FSep 29, 1985
- Chance of a freeze
- 75%
- Daylight
- 13 h 16 min to 11 h 45 min
- Cloud cover
- 52%
- Humidity
- 54%
- Dew point
- 33°F
- Wind
- 6.7 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 | 75°F | 46°F | 94°F 2019 | 25°F 2006 | 0% | |
| Sep 2 | 74°F | 46°F | 94°F 2007 | 23°F 1974 | 0% | |
| Sep 3 | 74°F | 45°F | 98°F 2017 | 22°F 1958 | 0% | |
| Sep 4 | 74°F | 45°F | 98°F 2017 | 27°F 1969 | 0% | |
| Sep 5 | 73°F | 45°F | 98°F 2020 | 27°F 2014 | 0% | |
| Sep 6 | 73°F | 44°F | 92°F 2022 | 22°F 1956 | 0% | |
| Sep 7 | 72°F | 44°F | 93°F 2022 | 22°F 1992 | 0% | |
| Sep 8 | 72°F | 44°F | 94°F 2021 | 23°F 1976 | 0% | |
| Sep 9 | 72°F | 44°F | 88°F 1966 | 20°F 1962 | 0% | |
| Sep 10 | 71°F | 43°F | 89°F 1963 | 21°F 1957 | 0% | |
| Sep 11 | 71°F | 43°F | 89°F 1959 | 24°F 1982 | 0% | |
| Sep 12 | 71°F | 43°F | 89°F 2017 | 18°F 2014 | 0% | |
| Sep 13 | 70°F | 42°F | 89°F 2015 | 19°F 1974 | 0% | |
| Sep 14 | 70°F | 42°F | 89°F 2020 | 20°F 1961 | 0% | |
| Sep 15 | 69°F | 42°F | 93°F 2000 | 20°F 1970 | 1% | |
| Sep 16 | 69°F | 41°F | 88°F 1979 | 23°F 1982 | 1% | |
| Sep 17 | 68°F | 41°F | 87°F 2008 | 17°F 1965 | 1% | |
| Sep 18 | 68°F | 41°F | 90°F 1981 | 11°F 1971 | 1% | |
| Sep 19 | 67°F | 41°F | 90°F 1956 | 15°F 1965 | 1% | |
| Sep 20 | 67°F | 40°F | 86°F 1956 | 14°F 1983 | 1% | |
| Sep 21 | 67°F | 40°F | 86°F 1967 | 19°F 1960 | 1% | |
| Sep 22 | 66°F | 40°F | 87°F 1966 | 20°F 1961 | 1% | |
| Sep 23 | 66°F | 39°F | 89°F 1987 | 18°F 1993 | 1% | |
| Sep 24 | 65°F | 39°F | 89°F 1987 | 14°F 2000 | 1% | |
| Sep 25 | 65°F | 39°F | 90°F 2015 | 15°F 1984 | 1% | |
| Sep 26 | 64°F | 38°F | 90°F 1957 | 20°F 1972 | 2% | |
| Sep 27 | 64°F | 38°F | 88°F 1963 | 18°F 1961 | 2% | |
| Sep 28 | 63°F | 38°F | 86°F 2022 | 14°F 1999 | 2% | |
| Sep 29 | 63°F | 37°F | 88°F 2010 | 10°F 1985 | 2% | |
| Sep 30 | 62°F | 37°F | 86°F 1963 | 12°F 1985 | 2% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- September 1
- sunrise 6:50 AM, sunset 8:06 PM
- September 30
- sunrise 7:26 AM, sunset 7:11 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00244896 (Laurin 2NE), public domain. Records: NOAA GHCN-Daily, station USC00248430, 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.