August weather forecastFort Irwin, CA
August
Weather in August
The last month of the summer, August, is also a sweltering month in Fort Irwin, California, with an average temperature ranging between max 97.3°F (36.3°C) and min 74.7°F (23.7°C).Temperature
The ushering in of August brings an average high-temperature of a still fiery hot 97.3°F (36.3°C), closely mirroring the 98.2°F (36.8°C) of July. Fort Irwin observes a substantial disparity between daytime high and the average low-temperature of 74.7°F (23.7°C) during August nights.Humidity
The least humid month is August, with an average relative humidity of 21%.Rainfall
In Fort Irwin, California, in August, it is raining for 3 days, with typically 0.2" (5mm) of accumulated precipitation. In Fort Irwin, during the entire year, the rain falls for 39 days and collects up to 3.27" (83mm) of precipitation.Snowfall
February through December are months without snowfall.Daylight
The average length of the day in August is 13h and 26min.On the first day of the month, sunrise is at 5:56 am and sunset at 7:49 pm. On the last day of August, in Fort Irwin, California, sunrise is at 6:19 am and sunset at 7:14 pm PDT.
Sunshine
The months with the most sunshine are June through August, with an average of 12.1h of sunshine.UV index
The average daily maximum UV index in August is 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high daily UV index of 7 during August translates into the following directions:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Fort Irwin, CA
- Average high temperature in August: 97.3°F
The warmest month (with the highest average high temperature) is July (98.2°F).
The month with the lowest average high temperature is December (55°F).
- Average low temperature in August: 74.7°F
The month with the highest average low temperature is August (74.7°F).
The coldest month (with the lowest average low temperature) is December (40.1°F).
Average pressure in August
Fort Irwin, CA
- Average pressure in August: 29.83"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.79"Hg).
Average wind speed in August
Fort Irwin, CA
- Average wind speed in August: 8.4mph
The windiest month (with the highest average wind speed) is May (11.7mph).
The calmest month (with the lowest average wind speed) is January (6mph).
Average humidity in August
Fort Irwin, CA
- Average humidity in August: 21%
The month with the highest relative humidity is December (47%).
The month with the lowest relative humidity is August (21%).
Average rainfall in August
Fort Irwin, CA
- Average rainfall in August: 0.2"
The wettest month (with the highest rainfall) is December (0.51").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in August
Fort Irwin, CA
- Average rainfall days in August: 3 days
The month with the highest number of rainy days is December (4.6 days).
The month with the least rainy days is June (0.6 days).
Average snowfall in August
Fort Irwin, CA
- Average snowfall in August: 0"
The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in August
Fort Irwin, CA
- Average snowfall days in August: 0 days
The months with the highest number of snowfall days are January and December (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in August /
Average sunshine in August
Fort Irwin, CA
- Average daylight in August: 13h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in August: 12h and 6min
The months with the most sunshine are June, July and August (Average sunshine: 12h and 6min).
The month with the least sunshine is January (Average sunshine: 7h and 6min).
Average sunshine days in August
Fort Irwin, CA
- Average sunshine days in August: 25.9 days
The month with the most sunshine days is June (29 days).
The month with the least sunshine days is February (23.5 days).
Average UV index in August
Fort Irwin, CA
- Average UV index in August: 7
The months with the highest UV index are June and July (UV index 8).
The months with the lowest UV index are November and December (UV index 3).
Average cloud cover in August
Fort Irwin, CA
- Average cloud cover in August: 5
The month with the most cloud cover is December (Cloud cover 18).
The month with the least cloud cover is June (Cloud cover 4).
Average visibility in August
Fort Irwin, 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).





