August weather forecastFort Jones, CA
August
Weather in August
The last month of the summer, August, is another warm month in Fort Jones, California, with an average temperature varying between 84.2°F (29°C) and 50.2°F (10.1°C).Temperature
July and August represent the warmest period, with an average high-temperature of 84.2°F (29°C).Heat index
The heat index in August is estimated at a hot 86°F (30°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.Consider that heat index readings are for situations in the shade and light wind. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humidity
August is the least humid month, with an average relative humidity of 52%.Rainfall
In Fort Jones, during August, the rain falls for 3.6 days and regularly aggregates up to 0.28" (7mm) of precipitation. In Fort Jones, during the entire year, the rain falls for 116 days and collects up to 17.8" (452mm) of precipitation.Snowfall
In Fort Jones, snow does not fall in May through September.Daylight
In August, the average length of the day is 13h and 47min.On the first day of August, sunrise is at 6:06 am and sunset at 8:28 pm. On the last day of the month, sunrise is at 6:37 am and sunset at 7:45 pm PDT.
Sunshine
In August, the average sunshine is 12h.UV index
In August, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 5 during August leads to these advisories:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Fort Jones, CA
- Average high temperature in August: 84.2°F
The warmest months (with the highest average high temperature) are July and August (84.2°F).
The month with the lowest average high temperature is December (41.5°F).
- Average low temperature in August: 50.2°F
The month with the highest average low temperature is August (50.2°F).
The coldest month (with the lowest average low temperature) is December (26.6°F).
Average pressure in August
Fort Jones, CA
- Average pressure in August: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is August (29.96"Hg).
Average wind speed in August
Fort Jones, CA
- Average wind speed in August: 3.6mph
The windiest month (with the highest average wind speed) is March (5.4mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in August
Fort Jones, CA
- Average humidity in August: 52%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (52%).
Average rainfall in August
Fort Jones, CA
- Average rainfall in August: 0.28"
The wettest month (with the highest rainfall) is December (2.99").
The driest month (with the least rainfall) is July (0.16").
Average rainfall days in August
Fort Jones, CA
- Average rainfall days in August: 3.6 days
The month with the highest number of rainy days is March (16.7 days).
The month with the least rainy days is July (3.2 days).
Average snowfall in August
Fort Jones, CA
- Average snowfall in August: 0"
The month with the highest snowfall is February (5.39").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Fort Jones, CA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Fort Jones, CA
- Average daylight in August: 13h and 48min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in August: 12h and 0min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 5h and 42min).
Average sunshine days in August
Fort Jones, CA
- Average sunshine days in August: 25.7 days
The month with the most sunshine days is August (25.7 days).
The month with the least sunshine days is March (11 days).
Average UV index in August
Fort Jones, CA
- Average UV index in August: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in August
Fort Jones, CA
- Average cloud cover in August: 8
The months with the most cloud cover are March and December (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 8).
Average visibility in August
Fort Jones, CA
- Average visibility in August: 6mi
The months with the highest visibility are April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, November and December (5mi).





