Prineville Weather in August
Average highs run from 89°F on August 1 to 83°F on August 31, and lows from 50°F to 45°F. Normal precipitation for the month is 0.36 in over about 2 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
- 86°F
- Average low
- 48°F
- Precipitation
- 0.36 in
- Record high
- 106°FAug 29, 1915
- Record low
- 23°FAug 20, 2014
- Chance of a freeze
- 10%
- Days of 90°F or more
- 10.8
- Daylight
- 14 h 37 min to 13 h 16 min
- Cloud cover
- 28%
- Humidity
- 56%
- Dew point
- 47°F
- Wind
- 5.6 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 | 89°F | 50°F | 103°F 2022 | 31°F 1957 | 7% | 0% |
| Aug 2 | 89°F | 50°F | 102°F 1914 | 30°F 1900 | 7% | 0% |
| Aug 3 | 89°F | 50°F | 102°F 1961 | 31°F 1955 | 7% | 0% |
| Aug 4 | 89°F | 50°F | 104°F 1998 | 32°F 1899 | 7% | 0% |
| Aug 5 | 89°F | 50°F | 100°F 1972 | 30°F 1899 | 7% | 0% |
| Aug 6 | 88°F | 50°F | 104°F 1972 | 29°F 1931 | 7% | 0% |
| Aug 7 | 88°F | 49°F | 105°F 1972 | 27°F 1939 | 7% | 0% |
| Aug 8 | 88°F | 49°F | 104°F 1981 | 28°F 2014 | 7% | 0% |
| Aug 9 | 88°F | 49°F | 103°F 2018 | 32°F 1954 | 7% | 0% |
| Aug 10 | 88°F | 49°F | 102°F 1971 | 31°F 1899 | 7% | 0% |
| Aug 11 | 88°F | 49°F | 102°F 1971 | 30°F 1899 | 7% | 0% |
| Aug 12 | 87°F | 49°F | 101°F 1971 | 30°F 1918 | 7% | 0% |
| Aug 13 | 87°F | 48°F | 103°F 1914 | 29°F 1949 | 7% | 0% |
| Aug 14 | 87°F | 48°F | 101°F 1992 | 29°F 1949 | 7% | 0% |
| Aug 15 | 87°F | 48°F | 100°F 1933 | 26°F 1935 | 7% | 0% |
| Aug 16 | 87°F | 48°F | 103°F 1967 | 25°F 1935 | 7% | 0% |
| Aug 17 | 86°F | 48°F | 104°F 1977 | 28°F 2014 | 7% | 0% |
| Aug 18 | 86°F | 48°F | 102°F 2008 | 24°F 1918 | 7% | 0% |
| Aug 19 | 86°F | 47°F | 102°F 1967 | 28°F 1916 | 7% | 0% |
| Aug 20 | 86°F | 47°F | 100°F 1977 | 23°F 2014 | 7% | 0% |
| Aug 21 | 86°F | 47°F | 99°F 2009 | 28°F 1980 | 7% | 0% |
| Aug 22 | 85°F | 47°F | 98°F 1897 | 28°F 1960 | 7% | 0% |
| Aug 23 | 85°F | 47°F | 102°F 1996 | 30°F 1943 | 7% | 0% |
| Aug 24 | 85°F | 47°F | 101°F 1917 | 26°F 1935 | 7% | 0% |
| Aug 25 | 85°F | 46°F | 100°F 1915 | 30°F 1908 | 7% | 0% |
| Aug 26 | 85°F | 46°F | 100°F 1916 | 29°F 1955 | 7% | 0% |
| Aug 27 | 84°F | 46°F | 100°F 1915 | 29°F 1962 | 8% | 0% |
| Aug 28 | 84°F | 46°F | 102°F 1915 | 28°F 1910 | 8% | 0% |
| Aug 29 | 84°F | 46°F | 106°F 1915 | 23°F 1937 | 8% | 0% |
| Aug 30 | 84°F | 45°F | 100°F 1967 | 27°F 1965 | 8% | 0% |
| Aug 31 | 83°F | 45°F | 100°F 2022 | 29°F 1905 | 8% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- August 1
- sunrise 5:51 AM, sunset 8:28 PM
- August 31
- sunrise 6:25 AM, sunset 7:41 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00356883 (Prineville), public domain. Records: NOAA GHCN-Daily, station USC00356883, 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.