Penn Valley Weather in August
Average highs run from 89°F on August 1 to 86°F on August 31, and lows from 59°F to 55°F. Normal precipitation for the month is 0.11 in over about 1 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
- 87°F
- Average low
- 57°F
- Precipitation
- 0.11 in
- Record high
- 111°FAug 14, 1933
- Record low
- 34°FAug 13, 1938
- Chance of a freeze
- 0%
- Days of 90°F or more
- 11.8
- Daylight
- 14 h 11 min to 13 h 04 min
- Cloud cover
- 19%
- Humidity
- 33%
- Dew point
- 42°F
- Wind
- 6.5 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 | 59°F | 101°F 1908 | 38°F 1919 | 2% | 0% |
| Aug 2 | 89°F | 59°F | 101°F 1908 | 38°F 1944 | 2% | 0% |
| Aug 3 | 89°F | 59°F | 100°F 1939 | 39°F 1919 | 2% | 0% |
| Aug 4 | 89°F | 58°F | 102°F 1939 | 40°F 1917 | 2% | 0% |
| Aug 5 | 89°F | 58°F | 101°F 1998 | 39°F 1918 | 2% | 0% |
| Aug 6 | 89°F | 58°F | 100°F 1913 | 38°F 1954 | 2% | 0% |
| Aug 7 | 88°F | 58°F | 102°F 1908 | 39°F 1975 | 2% | 0% |
| Aug 8 | 88°F | 58°F | 104°F 1908 | 40°F 1944 | 2% | 0% |
| Aug 9 | 88°F | 58°F | 103°F 1978 | 35°F 1919 | 2% | 0% |
| Aug 10 | 88°F | 58°F | 103°F 1935 | 38°F 1932 | 2% | 0% |
| Aug 11 | 88°F | 58°F | 104°F 1933 | 35°F 1919 | 2% | 0% |
| Aug 12 | 88°F | 57°F | 107°F 1933 | 36°F 1919 | 2% | 0% |
| Aug 13 | 88°F | 57°F | 108°F 1933 | 34°F 1938 | 2% | 0% |
| Aug 14 | 88°F | 57°F | 111°F 1933 | 36°F 1938 | 2% | 0% |
| Aug 15 | 88°F | 57°F | 106°F 1933 | 39°F 1913 | 2% | 0% |
| Aug 16 | 88°F | 57°F | 98°F 1906 | 39°F 1954 | 2% | 0% |
| Aug 17 | 87°F | 57°F | 100°F 1934 | 35°F 1918 | 2% | 0% |
| Aug 18 | 87°F | 57°F | 102°F 1934 | 35°F 1918 | 2% | 0% |
| Aug 19 | 87°F | 56°F | 99°F 1919 | 36°F 1916 | 3% | 0% |
| Aug 20 | 87°F | 56°F | 100°F 1950 | 38°F 1911 | 3% | 0% |
| Aug 21 | 87°F | 56°F | 99°F 1950 | 37°F 1959 | 3% | 0% |
| Aug 22 | 87°F | 56°F | 99°F 1913 | 37°F 1947 | 3% | 0% |
| Aug 23 | 87°F | 56°F | 100°F 1913 | 37°F 1909 | 3% | 0% |
| Aug 24 | 87°F | 56°F | 103°F 1931 | 37°F 1927 | 3% | 0% |
| Aug 25 | 86°F | 56°F | 99°F 1918 | 38°F 1944 | 3% | 0% |
| Aug 26 | 86°F | 56°F | 100°F 1924 | 37°F 1945 | 3% | 0% |
| Aug 27 | 86°F | 55°F | 100°F 1931 | 35°F 1942 | 3% | 0% |
| Aug 28 | 86°F | 55°F | 100°F 1915 | 36°F 1937 | 3% | 0% |
| Aug 29 | 86°F | 55°F | 101°F 1915 | 36°F 1942 | 3% | 0% |
| Aug 30 | 86°F | 55°F | 101°F 1915 | 34°F 1927 | 3% | 0% |
| Aug 31 | 86°F | 55°F | 99°F 1950 | 36°F 1926 | 3% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- August 1
- sunrise 6:05 AM, sunset 8:16 PM
- August 31
- sunrise 6:33 AM, sunset 7:37 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00043573 (Grass Valley #2), public domain. Records: NOAA GHCN-Daily, station USC00046136, 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.