August weather forecastShasta, CA
August
Weather in August
The last month of the summer, August, is another tropical month in Shasta, California, with an average temperature ranging between max 93.6°F (34.2°C) and min 61.7°F (16.5°C).Temperature
Shasta measures an average high-temperature of a still hot 93.6°F (34.2°C) in August, nearly consistent with the preceding month. Shasta undergoes a major shift from daytime highs, averaging a comfortable 61.7°F (16.5°C) during the night in August.Humidity
The least humid month is August, with an average relative humidity of 33%.Rainfall
In August, the rain falls for 1.3 days. Throughout August, 0.12" (3mm) of precipitation is accumulated. Throughout the year, there are 92.2 rainfall days, and 20.16" (512mm) of precipitation is accumulated.Snowfall
In Shasta, snow does not fall in January, April through November.Daylight
The average length of the day in August is 13h and 44min.On the first day of the month, sunrise is at 6:07 am and sunset at 8:24 pm. On the last day of August, sunrise is at 6:36 am and sunset at 7:43 pm PDT.
Sunshine
In August, the average sunshine is 12h.UV index
In August, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A typical high UV index of 6 in August suggests the following recommendations:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Shasta, CA
- Average high temperature in August: 93.6°F
The warmest month (with the highest average high temperature) is July (94.6°F).
The month with the lowest average high temperature is December (50.9°F).
- Average low temperature in August: 61.7°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is December (36.7°F).
Average pressure in August
Shasta, CA
- Average pressure in August: 29.92"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.92"Hg).
Average wind speed in August
Shasta, CA
- Average wind speed in August: 4.3mph
The windiest months (with the highest average wind speed) are March and October (5.2mph).
The calmest months (with the lowest average wind speed) are August and November (4.3mph).
Average humidity in August
Shasta, CA
- Average humidity in August: 33%
The month with the highest relative humidity is March (74%).
The month with the lowest relative humidity is August (33%).
Average rainfall in August
Shasta, CA
- Average rainfall in August: 0.12"
The wettest month (with the highest rainfall) is March (3.94").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in August
Shasta, CA
- Average rainfall days in August: 1.3 days
The month with the highest number of rainy days is March (15.8 days).
The month with the least rainy days is August (1.3 days).
Average snowfall in August
Shasta, CA
- Average snowfall in August: 0"
The month with the highest snowfall is December (0.31").
The months with the least snowfall are January, April, May, June, July, August, September, October and November (0").
Average snowfall days in August
Shasta, CA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are January, April, May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Shasta, CA
- Average daylight in August: 13h and 42min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 12h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in August
Shasta, CA
- Average sunshine days in August: 27.8 days
The month with the most sunshine days is August (27.8 days).
The month with the least sunshine days is March (13.5 days).
Average UV index in August
Shasta, CA
- Average UV index in August: 6
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is February (UV index 2).
Average cloud cover in August
Shasta, CA
- Average cloud cover in August: 5
The month with the most cloud cover is March (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in August
Shasta, CA
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





