Shasta Weather in August
Average highs run from 100°F on August 1 to 96°F on August 31, and lows from 67°F to 63°F. Normal precipitation for the month is 0.10 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
- 98°F
- Average low
- 65°F
- Precipitation
- 0.10 in
- Record high
- 116°FAug 15, 2021
- Record low
- 50°FAug 30, 2010
- Chance of a freeze
- 0%
- Days of 90°F or more
- 27.6
- Daylight
- 14 h 18 min to 13 h 07 min
- Cloud cover
- 17%
- Humidity
- 26%
- Dew point
- 38°F
- Wind
- 4.3 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 |
|---|---|---|---|---|---|---|
| Aug 1 | 100°F | 67°F | 113°F 1993 | 54°F 1989 | 2% | 0% |
| Aug 2 | 100°F | 67°F | 111°F 1993 | 56°F 1989 | 2% | 0% |
| Aug 3 | 99°F | 66°F | 112°F 1998 | 59°F 1989 | 3% | 0% |
| Aug 4 | 99°F | 66°F | 112°F 1998 | 58°F 1992 | 3% | 0% |
| Aug 5 | 99°F | 66°F | 113°F 1998 | 55°F 2002 | 3% | 0% |
| Aug 6 | 99°F | 66°F | 115°F 1990 | 55°F 1996 | 3% | 0% |
| Aug 7 | 99°F | 66°F | 111°F 1997 | 56°F 1999 | 3% | 0% |
| Aug 8 | 99°F | 66°F | 110°F 1990 | 57°F 1999 | 3% | 0% |
| Aug 9 | 99°F | 66°F | 110°F 2020 | 57°F 1993 | 3% | 0% |
| Aug 10 | 99°F | 66°F | 110°F 1996 | 53°F 1994 | 3% | 0% |
| Aug 11 | 99°F | 65°F | 110°F 1992 | 55°F 1989 | 3% | 0% |
| Aug 12 | 98°F | 65°F | 111°F 1996 | 53°F 1989 | 3% | 0% |
| Aug 13 | 98°F | 65°F | 112°F 2012 | 54°F 1988 | 3% | 0% |
| Aug 14 | 98°F | 65°F | 110°F 2008 | 57°F 2001 | 3% | 0% |
| Aug 15 | 98°F | 65°F | 116°F 2021 | 55°F 1988 | 3% | 0% |
| Aug 16 | 98°F | 65°F | 112°F 2023 | 53°F 1993 | 3% | 0% |
| Aug 17 | 98°F | 65°F | 110°F 2022 | 53°F 1995 | 3% | 0% |
| Aug 18 | 98°F | 65°F | 110°F 2013 | 56°F 1997 | 3% | 0% |
| Aug 19 | 97°F | 65°F | 109°F 2020 | 56°F 1990 | 4% | 0% |
| Aug 20 | 97°F | 64°F | 110°F 1988 | 57°F 1996 | 4% | 0% |
| Aug 21 | 97°F | 64°F | 107°F 2025 | 55°F 1998 | 4% | 0% |
| Aug 22 | 97°F | 64°F | 107°F 2025 | 53°F 1992 | 4% | 0% |
| Aug 23 | 97°F | 64°F | 107°F 2025 | 55°F 1989 | 4% | 0% |
| Aug 24 | 97°F | 64°F | 107°F 2010 | 56°F 1994 | 4% | 0% |
| Aug 25 | 97°F | 64°F | 110°F 2010 | 54°F 1995 | 4% | 0% |
| Aug 26 | 97°F | 64°F | 109°F 1988 | 53°F 1995 | 4% | 0% |
| Aug 27 | 96°F | 64°F | 111°F 2017 | 53°F 1994 | 5% | 0% |
| Aug 28 | 96°F | 64°F | 110°F 2017 | 51°F 1995 | 5% | 0% |
| Aug 29 | 96°F | 64°F | 109°F 1987 | 53°F 1994 | 5% | 0% |
| Aug 30 | 96°F | 63°F | 110°F 1987 | 50°F 2010 | 5% | 0% |
| Aug 31 | 96°F | 63°F | 111°F 1987 | 52°F 1995 | 5% | 0% |
Chance of rain
- Chance of a wet day
- Chance of snowfall
Sunrise and sunset
Times for 2026, local time (PDT).
- August 1
- sunrise 6:07 AM, sunset 8:25 PM
- August 31
- sunrise 6:36 AM, sunset 7:43 PM
Other months
Sources
Normals: NOAA NCEI U.S. Climate Normals, 1991-2020, station USC00049621 (Whiskeytown Rsvr), public domain. Records: NOAA GHCN-Daily, station USW00024257, 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.