Cheyenne Weather in August
Average highs run from 83°F on August 1 to 78°F on August 31, and lows from 56°F to 50°F. Normal precipitation for the month is 1.63 in over about 10 wet days.
August day by day
The normal high and low for each date, and the record, in °F.
- Normal low
- Normal high
- Record high
- Record low
August at a glance
- Average high
- 81°F
- Average low
- 54°F
- Precipitation
- 1.63 in
- Record high
- 98°FAug 1, 2008
- Record low
- 36°FAug 25, 1975
- Chance of a freeze
- 0%
- Days of 90°F or more
- 2.8
- Daylight
- 14 h 21 min to 13 h 08 min
- Cloud cover
- 49%
- Humidity
- 48%
- Dew point
- 45°F
- Wind
- 8.1 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 |
|---|---|---|---|---|---|---|
| Aug 1 | 83°F | 56°F | 98°F 2008 | 42°F 1950 | 35% | 0% |
| Aug 2 | 83°F | 56°F | 98°F 2008 | 46°F 1915 | 35% | 0% |
| Aug 3 | 83°F | 56°F | 94°F 2024 | 44°F 1974 | 35% | 0% |
| Aug 4 | 83°F | 56°F | 95°F 1979 | 42°F 1980 | 35% | 0% |
| Aug 5 | 83°F | 56°F | 98°F 2022 | 47°F 1980 | 35% | 0% |
| Aug 6 | 83°F | 56°F | 96°F 1979 | 44°F 1993 | 35% | 0% |
| Aug 7 | 83°F | 55°F | 95°F 1980 | 42°F 1996 | 34% | 0% |
| Aug 8 | 83°F | 55°F | 97°F 2026 | 45°F 1939 | 34% | 0% |
| Aug 9 | 82°F | 55°F | 93°F 2020 | 43°F 1939 | 34% | 0% |
| Aug 10 | 82°F | 55°F | 96°F 1969 | 39°F 1939 | 34% | 0% |
| Aug 11 | 82°F | 55°F | 95°F 1959 | 43°F 1939 | 33% | 0% |
| Aug 12 | 82°F | 54°F | 93°F 1996 | 44°F 1935 | 33% | 0% |
| Aug 13 | 82°F | 54°F | 95°F 2007 | 42°F 2002 | 33% | 0% |
| Aug 14 | 82°F | 54°F | 94°F 1937 | 43°F 2023 | 33% | 0% |
| Aug 15 | 82°F | 54°F | 93°F 1960 | 41°F 1951 | 33% | 0% |
| Aug 16 | 81°F | 54°F | 95°F 2002 | 40°F 2009 | 32% | |
| Aug 17 | 81°F | 53°F | 93°F 2020 | 41°F 2009 | 32% | |
| Aug 18 | 81°F | 53°F | 95°F 2020 | 44°F 1978 | 32% | |
| Aug 19 | 81°F | 53°F | 95°F 2019 | 40°F 1978 | 32% | |
| Aug 20 | 81°F | 53°F | 94°F 2013 | 37°F 1939 | 31% | |
| Aug 21 | 81°F | 53°F | 95°F 1960 | 40°F 1939 | 31% | |
| Aug 22 | 80°F | 52°F | 93°F 2020 | 39°F 1966 | 31% | |
| Aug 23 | 80°F | 52°F | 94°F 2009 | 38°F 2015 | 30% | |
| Aug 24 | 80°F | 52°F | 94°F 1936 | 41°F 1962 | 30% | |
| Aug 25 | 80°F | 52°F | 94°F 2011 | 36°F 1975 | 30% | |
| Aug 26 | 80°F | 52°F | 93°F 2010 | 44°F 1967 | 30% | |
| Aug 27 | 79°F | 51°F | 93°F 1969 | 39°F 1992 | 29% | |
| Aug 28 | 79°F | 51°F | 92°F 1937 | 39°F 1936 | 29% | |
| Aug 29 | 79°F | 51°F | 93°F 2012 | 41°F 1920 | 29% | |
| Aug 30 | 79°F | 51°F | 94°F 1990 | 39°F 1964 | 28% | |
| Aug 31 | 78°F | 50°F | 93°F 1960 | 37°F 1944 | 28% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (MDT).
- August 1
- sunrise 5:55 AM, sunset 8:16 PM
- August 31
- sunrise 6:25 AM, sunset 7:33 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00481676 (Cheyenne WFO), public domain. Records: NOAA GHCN-Daily, station USW00024018, 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.