High Rolls Weather in September
Average highs run from 77°F on September 1 to 71°F on September 30, and lows from 54°F to 47°F. Normal precipitation for the month is 2.48 in over about 6 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
- 51°F
- Precipitation
- 2.48 in
- Record high
- 102°FSep 4, 1948
- Record low
- 33°FSep 30, 1945
- Chance of a freeze
- 0%
- Daylight
- 12 h 50 min to 11 h 52 min
- Cloud cover
- 40%
- Humidity
- 44%
- Dew point
- 46°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 | 77°F | 54°F | 98°F 1945 | 53°F 1955 | 27% | 0% |
| Sep 2 | 77°F | 54°F | 100°F 1951 | 51°F 1955 | 27% | 0% |
| Sep 3 | 77°F | 54°F | 101°F 1948 | 51°F 1961 | 26% | 0% |
| Sep 4 | 77°F | 54°F | 102°F 1948 | 44°F 1961 | 26% | 0% |
| Sep 5 | 77°F | 54°F | 100°F 1951 | 49°F 1961 | 26% | 0% |
| Sep 6 | 77°F | 54°F | 101°F 1983 | 52°F 1915 | 25% | 0% |
| Sep 7 | 76°F | 53°F | 101°F 2000 | 48°F 1932 | 25% | 0% |
| Sep 8 | 76°F | 53°F | 98°F 1959 | 48°F 1932 | 25% | 0% |
| Sep 9 | 76°F | 53°F | 101°F 1954 | 47°F 1953 | 24% | 0% |
| Sep 10 | 76°F | 53°F | 98°F 1952 | 48°F 1953 | 24% | 0% |
| Sep 11 | 76°F | 52°F | 96°F 1945 | 46°F 1956 | 24% | 0% |
| Sep 12 | 75°F | 52°F | 98°F 1974 | 50°F 1968 | 23% | 0% |
| Sep 13 | 75°F | 52°F | 98°F 1931 | 44°F 1945 | 23% | 0% |
| Sep 14 | 75°F | 52°F | 98°F 1998 | 43°F 1959 | 22% | 0% |
| Sep 15 | 75°F | 51°F | 98°F 1956 | 49°F 1993 | 22% | 0% |
| Sep 16 | 74°F | 51°F | 102°F 1956 | 50°F 1957 | 21% | 0% |
| Sep 17 | 74°F | 51°F | 98°F 1956 | 43°F 1968 | 21% | 0% |
| Sep 18 | 74°F | 51°F | 98°F 1933 | 43°F 1968 | 21% | 0% |
| Sep 19 | 74°F | 50°F | 97°F 1956 | 44°F 1971 | 20% | 0% |
| Sep 20 | 74°F | 50°F | 98°F 1954 | 40°F 1971 | 20% | 0% |
| Sep 21 | 73°F | 50°F | 98°F 1944 | 39°F 1965 | 19% | 0% |
| Sep 22 | 73°F | 49°F | 97°F 1953 | 43°F 1965 | 19% | 0% |
| Sep 23 | 73°F | 49°F | 94°F 1953 | 41°F 1970 | 18% | 0% |
| Sep 24 | 72°F | 49°F | 94°F 1926 | 46°F 1968 | 18% | 0% |
| Sep 25 | 72°F | 48°F | 95°F 1953 | 43°F 1957 | 18% | 0% |
| Sep 26 | 72°F | 48°F | 96°F 1951 | 42°F 1915 | 18% | 0% |
| Sep 27 | 72°F | 48°F | 97°F 1977 | 44°F 1936 | 17% | 0% |
| Sep 28 | 71°F | 47°F | 96°F 1953 | 40°F 1913 | 17% | 0% |
| Sep 29 | 71°F | 47°F | 95°F 1977 | 40°F 1935 | 17% | 0% |
| Sep 30 | 71°F | 47°F | 97°F 1953 | 33°F 1945 | 17% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- September 1
- sunrise 6:38 AM, sunset 7:28 PM
- September 30
- sunrise 6:57 AM, sunset 6:49 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00295960 (Mtn Park), public domain. Records: NOAA GHCN-Daily, station USC00290199, 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.