Shasta weather in August: Shasta, California: normal highs, lows, rain and records for August
Shasta in August has a normal high of 96°F and a normal low of 68°F, a daily mean of 82°F, falling from 98°F on the 1st to 94°F by the 31st. Measurable precipitation falls on 1 days in a normal August, 0.16 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 36°C and low of 20°C, 4 mm of precipitation in August.
- NOAA stationShasta Dam
- Station IDUSC00048135
- Location40.71°N 122.42°W
- Elevation1,075 ft (328 m)
- From the center9 miles
- Population (census place)1,330
- Jan 55° 41°
- Feb 59° 42°
- Mar 63° 44°
- Apr 70° 48°
- May 79° 55°
- Jun 88° 63°
- Jul 97° 69°
- Aug 96° 68°
- Sep 90° 63°
- Oct 78° 55°
- Nov 62° 46°
- Dec 54° 41°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Shasta in August?
The normal high is 96°F and the normal low 68°F, for a daily mean of 81.8°F. August is 1.2°F cooler than July and 5.2°F warmer than September. August is the 2nd warmest month of the year in Shasta and the 11th wettest. Across the month the normal high falls 4°F, from 98°F on August 1 to 94°F on August 31. From one year to the next August's mean temperature typically moves about 1.9°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 80°F and 84°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 4%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 98°F | 69°F | 2% | 1% |
| August 8 | 97°F | 69°F | 2% | 1% |
| August 15 | 96°F | 68°F | 2% | 1% |
| August 22 | 95°F | 67°F | 3% | 1% |
| August 31 | 94°F | 66°F | 4% | 2% |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 1, coldest night August 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 98°F | 69°F | 2% | 1% | 14 h 20 min |
| August 2 | 98°F | 69°F | 2% | 1% | 14 h 20 min |
| August 3 | 98°F | 69°F | 2% | 1% | 14 h 20 min |
| August 4 | 98°F | 69°F | 2% | 1% | 14 h 20 min |
| August 5 | 98°F | 69°F | 2% | 1% | 14 h 10 min |
| August 6 | 97°F | 69°F | 2% | 1% | 14 h 10 min |
| August 7 | 97°F | 69°F | 2% | 1% | 14 h 10 min |
| August 8 | 97°F | 69°F | 2% | 1% | 14 h 10 min |
| August 9 | 97°F | 69°F | 2% | 1% | 14 h |
| August 10 | 97°F | 69°F | 2% | 1% | 14 h |
| August 11 | 97°F | 68°F | 2% | 1% | 14 h |
| August 12 | 97°F | 68°F | 2% | 1% | 14 h |
| August 13 | 97°F | 68°F | 2% | 1% | 14 h |
| August 14 | 96°F | 68°F | 2% | 1% | 13 h 50 min |
| August 15 | 96°F | 68°F | 2% | 1% | 13 h 50 min |
| August 16 | 96°F | 68°F | 2% | 1% | 13 h 50 min |
| August 17 | 96°F | 68°F | 2% | 1% | 13 h 50 min |
| August 18 | 96°F | 68°F | 2% | 1% | 13 h 40 min |
| August 19 | 96°F | 67°F | 3% | 1% | 13 h 40 min |
| August 20 | 96°F | 67°F | 3% | 1% | 13 h 40 min |
| August 21 | 95°F | 67°F | 3% | 1% | 13 h 40 min |
| August 22 | 95°F | 67°F | 3% | 1% | 13 h 30 min |
| August 23 | 95°F | 67°F | 3% | 1% | 13 h 30 min |
| August 24 | 95°F | 67°F | 3% | 1% | 13 h 30 min |
| August 25 | 95°F | 67°F | 3% | 2% | 13 h 30 min |
| August 26 | 95°F | 67°F | 3% | 2% | 13 h 20 min |
| August 27 | 95°F | 66°F | 3% | 2% | 13 h 20 min |
| August 28 | 94°F | 66°F | 3% | 2% | 13 h 20 min |
| August 29 | 94°F | 66°F | 4% | 2% | 13 h 20 min |
| August 30 | 94°F | 66°F | 4% | 2% | 13 h 10 min |
| August 31 | 94°F | 66°F | 4% | 2% | 13 h 10 min |
- Normal high
- 96°FAugust average
- Normal low
- 68°FAugust average
- Precipitation
- 0.16 inmonth total
- Days with precipitation
- 10.01 inch or more
- Days at 90°F or more
- 25
- Daylight
- 14 h 20 min to 13 h 10 minAugust 1 to August 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 31
- Sunshine
- 96%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00048135; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Shasta in August?
On a given August day the chance of 0.01 inch or more is 3% on average, highest around August 31 (4%). In all, 0.16 in falls on 1 days of a normal August.
In a normal August in Shasta, 25 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00048135.
What are the records for August in Shasta?
The warmest August temperature on this station's record (since 1943) is 115°F, on August 8, 1981; the coldest is 44°F, on August 22, 1978. The wettest August brought 5.47 in (1976).
The August mean against the 1991-2020 normal of 81.8°F: 2021 84.3°F (+2.5), 2022 85.5°F (+3.7), 2023 82.7°F (+0.9), 2024 80.2°F (−1.6), 2025 84.2°F (+2.4), 2026 80.8°F (−1.0). 4 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 84.3°F | +2.5°F | 0.00 in |
| 2022 | 85.5°F | +3.7°F | 0.00 in |
| 2023 | 82.7°F | +0.9°F | 1.25 in |
| 2024 | 80.2°F | −1.6°F | 0.40 in |
| 2025 | 84.2°F | +2.4°F | 0.04 in |
| 2026 | 80.8°F | −1.0°F | 0.00 in |
Source: records: ACIS, station USC00048135; recent months: ACIS, station USC00048135. Records and recent months use complete months only.
How does August in Shasta compare across California?
Across the 219 places PlainClimate covers in California, August normal highs run from 63°F in Bodega to 109°F in Needles; Shasta's is 96°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.