Laramie Weather in September
Average highs run from 77°F on September 1 to 65°F on September 30, and lows from 47°F to 38°F. Normal precipitation for the month is 1.90 in over about 8 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
- 72°F
- Average low
- 43°F
- Precipitation
- 1.90 in
- Snowfall
- 0.7 in
- Record high
- 91°FSep 5, 2020
- Record low
- -2°FSep 30, 1985
- Chance of a freeze
- 63%
- Daylight
- 13 h 06 min to 11 h 48 min
- Cloud cover
- 47%
- Humidity
- 49%
- Dew point
- 34°F
- Wind
- 10.3 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 | 77°F | 47°F | 88°F 2019 | 30°F 1965 | 30% | 1% |
| Sep 2 | 76°F | 47°F | 90°F 2019 | 27°F 2008 | 30% | 1% |
| Sep 3 | 76°F | 46°F | 87°F 1978 | 19°F 1974 | 30% | 1% |
| Sep 4 | 76°F | 46°F | 89°F 1960 | 29°F 1968 | 29% | 1% |
| Sep 5 | 76°F | 46°F | 91°F 2020 | 30°F 1956 | 29% | 1% |
| Sep 6 | 76°F | 46°F | 90°F 1978 | 32°F 1956 | 29% | 1% |
| Sep 7 | 75°F | 46°F | 88°F 1959 | 28°F 2010 | 29% | 1% |
| Sep 8 | 75°F | 45°F | 88°F 2022 | 23°F 2020 | 29% | 2% |
| Sep 9 | 75°F | 45°F | 86°F 2021 | 20°F 1962 | 29% | 2% |
| Sep 10 | 74°F | 45°F | 88°F 2021 | 23°F 2020 | 29% | 2% |
| Sep 11 | 74°F | 45°F | 84°F 2021 | 25°F 2022 | 29% | 2% |
| Sep 12 | 74°F | 44°F | 85°F 1958 | 24°F 1974 | 28% | 2% |
| Sep 13 | 74°F | 44°F | 86°F 2026 | 24°F 1999 | 28% | 2% |
| Sep 14 | 73°F | 44°F | 86°F 1948 | 20°F 1993 | 28% | 2% |
| Sep 15 | 73°F | 44°F | 86°F 2018 | 27°F 1979 | 28% | 3% |
| Sep 16 | 72°F | 43°F | 85°F 2018 | 17°F 1965 | 28% | 3% |
| Sep 17 | 72°F | 43°F | 85°F 2000 | 7°F 1965 | 27% | 3% |
| Sep 18 | 72°F | 43°F | 85°F 2018 | 13°F 1971 | 27% | 3% |
| Sep 19 | 71°F | 42°F | 86°F 2010 | 18°F 1971 | 27% | 3% |
| Sep 20 | 71°F | 42°F | 83°F 1956 | 20°F 1983 | 27% | 3% |
| Sep 21 | 70°F | 42°F | 78°F 1958 | 17°F 1965 | 26% | 4% |
| Sep 22 | 70°F | 41°F | 81°F 1954 | 15°F 1994 | 26% | 4% |
| Sep 23 | 69°F | 41°F | 81°F 1966 | 21°F 1971 | 26% | 4% |
| Sep 24 | 69°F | 40°F | 80°F 2020 | 19°F 1965 | 26% | 4% |
| Sep 25 | 68°F | 40°F | 88°F 2024 | 17°F 1984 | 26% | 5% |
| Sep 26 | 68°F | 40°F | 83°F 2010 | 16°F 1984 | 25% | 5% |
| Sep 27 | 67°F | 39°F | 83°F 2024 | 8°F 1996 | 25% | 5% |
| Sep 28 | 67°F | 39°F | 84°F 2010 | 18°F 1974 | 25% | 5% |
| Sep 29 | 66°F | 38°F | 85°F 2024 | 10°F 1984 | 25% | 6% |
| Sep 30 | 65°F | 38°F | 80°F 2023 | -2°F 1985 | 25% | 6% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- September 1
- sunrise 6:29 AM, sunset 7:35 PM
- September 30
- sunrise 6:58 AM, sunset 6:46 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00485417 (Laramie 4SE), public domain. Records: NOAA GHCN-Daily, station USW00024022, 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.