August weather forecastShasta Lake, CA
August
Weather in August
The last month of the summer, August, is another tropical month in Shasta Lake, California, with temperature in the range of an average low of 60.4°F (15.8°C) and an average high of 91.2°F (32.9°C).Temperature
Transitioning from July to August, Shasta Lake observes an average high-temperature of a still tropical 91.2°F (32.9°C), differing subtly from the previous month. Despite a significant daily temperature range, Shasta Lake's temperature falls to a steady low-temperature average of 60.4°F (15.8°C) in August.Humidity
The least humid month in Shasta Lake is August, with an average relative humidity of 35%.Rainfall
In Shasta Lake, in August, during 1.6 rainfall days, 0.16" (4mm) of precipitation is typically accumulated. In Shasta Lake, during the entire year, the rain falls for 99.5 days and collects up to 30.43" (773mm) of precipitation.Snowfall
In Shasta Lake, snow does not fall in April through October.Daylight
The average length of the day in August in Shasta Lake is 13h and 44min.On the first day of August in Shasta Lake, sunrise is at 6:07 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 7:42 pm PDT.
Sunshine
In Shasta Lake, the average sunshine in August is 12h.UV index
In August, the average daily maximum UV index in Shasta Lake, California, is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 6 during August translates into the following guidance:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Shasta Lake, CA
- Average high temperature in August: 91.2°F
The warmest month (with the highest average high temperature) is July (92.3°F).
The month with the lowest average high temperature is December (49.3°F).
- Average low temperature in August: 60.4°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is December (35.2°F).
Average pressure in August
Shasta Lake, 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 Lake, CA
- Average wind speed in August: 4.4mph
The windiest months (with the highest average wind speed) are March, April, June and October (5.2mph).
The calmest months (with the lowest average wind speed) are August and November (4.4mph).
Average humidity in August
Shasta Lake, CA
- Average humidity in August: 35%
The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is August (35%).
Average rainfall in August
Shasta Lake, CA
- Average rainfall in August: 0.16"
The wettest month (with the highest rainfall) is March (5.91").
The driest month (with the least rainfall) is July (0.08").
Average rainfall days in August
Shasta Lake, CA
- Average rainfall days in August: 1.6 days
The month with the highest number of rainy days is March (16.8 days).
The month with the least rainy days is August (1.6 days).
Average snowfall in August
Shasta Lake, CA
- Average snowfall in August: 0"
The month with the highest snowfall is December (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Shasta Lake, CA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Shasta Lake, 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 12min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in August
Shasta Lake, CA
- Average sunshine days in August: 27.3 days
The month with the most sunshine days is August (27.3 days).
The month with the least sunshine days is March (12.7 days).
Average UV index in August
Shasta Lake, CA
- Average UV index in August: 6
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February, November and December (UV index 2).
Average cloud cover in August
Shasta Lake, CA
- Average cloud cover in August: 5
The month with the most cloud cover is March (Cloud cover 43).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in August
Shasta Lake, 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).
