October weather forecastFairfield, CA
October
Weather in October
October, like September, in Fairfield, California, is a moderately hot autumn month, with temperature in the range of an average low of 53.6°F (12°C) and an average high of 75.6°F (24.2°C).Temperature
The arrival of October indicates a decrease in the average high-temperature, moving from a moderately hot 85.1°F (29.5°C) in September to a still warm 75.6°F (24.2°C). Despite soaring daytime temperatures, Fairfield registers a consistent average low-temperature of 53.6°F (12°C) in October.Humidity
In October, the average relative humidity is 54%.Rainfall
In Fairfield, in October, it is raining for 4.6 days, with typically 0.63" (16mm) of accumulated precipitation. In Fairfield, during the entire year, the rain falls for 71.4 days and collects up to 12.13" (308mm) of precipitation.Daylight
In October, the average length of the day is 11h and 11min.On the first day of October, sunrise is at 7:04 am and sunset at 6:50 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 6:09 pm PDT.
Sunshine
In October, the average sunshine is 7.1h.UV index
The average daily maximum UV index in October is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: A daily high UV index of 4 in October leads to these guidelines:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Fairfield, CA
- Average high temperature in October: 75.6°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is December (54.9°F).
- Average low temperature in October: 53.6°F
The month with the highest average low temperature is September (57.6°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).
Average pressure in October
Fairfield, CA
- Average pressure in October: 29.98"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).
Average wind speed in October
Fairfield, CA
- Average wind speed in October: 5.2mph
The windiest months (with the highest average wind speed) are May, June and July (7mph).
The calmest months (with the lowest average wind speed) are January and November (4.5mph).
Average humidity in October
Fairfield, CA
- Average humidity in October: 54%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is September (52%).
Average rainfall in October
Fairfield, CA
- Average rainfall in October: 0.63"
The wettest month (with the highest rainfall) is February (2.4").
The driest month (with the least rainfall) is August (0").
Average rainfall days in October
Fairfield, CA
- Average rainfall days in October: 4.6 days
The month with the highest number of rainy days is March (12.9 days).
The month with the least rainy days is August (0.7 days).
Average daylight in October /
Average sunshine in October
Fairfield, CA
- Average daylight in October: 11h and 12min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in October: 7h and 6min
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 42min).
Average sunshine days in October
Fairfield, CA
- Average sunshine days in October: 25.8 days
The month with the most sunshine days is August (30.2 days).
The month with the least sunshine days is March (17 days).
Average UV index in October
Fairfield, CA
- Average UV index in October: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in October
Fairfield, CA
- Average cloud cover in October: 16
The months with the most cloud cover are March and December (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 5).
Average visibility in October
Fairfield, CA
- Average visibility in October: 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).
