October weather forecastFairfield, IL
October
Weather in October
October, like September, in Fairfield, Illinois, is another refreshing autumn month, with an average temperature ranging between max 66.7°F (19.3°C) and min 49.6°F (9.8°C).Temperature
October brings a drop in Fairfield's average high-temperature, falling from a warm 79°F (26.1°C) in September to an enjoyable 66.7°F (19.3°C). Fairfield's temperature lowers to a mean of 49.6°F (9.8°C) during the nights in October.Humidity
With an average relative humidity of 70%, October is the least humid month.Rainfall
In Fairfield, in October, it is raining for 11.1 days, with typically 2.8" (71mm) of accumulated precipitation. In Fairfield, during the entire year, the rain falls for 166.4 days and collects up to 37.32" (948mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in October is 11h and 11min.On the first day of the month, sunrise is at 6:49 am and sunset at 6:35 pm. On the last day of October, sunrise is at 7:19 am and sunset at 5:54 pm CDT.
Sunshine
In October, the average sunshine is 6.6h.UV index
In October, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 3 in October suggests the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Fairfield, IL
- Average high temperature in October: 66.7°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in October: 49.6°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in October
Fairfield, IL
- Average pressure in October: 30.04"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in October
Fairfield, IL
- Average wind speed in October: 8.4mph
The windiest months (with the highest average wind speed) are February and March (9.9mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in October
Fairfield, IL
- Average humidity in October: 70%
The months with the highest relative humidity are May and July (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in October
Fairfield, IL
- Average rainfall in October: 2.8"
The wettest month (with the highest rainfall) is April (4.96").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in October
Fairfield, IL
- Average rainfall days in October: 11.1 days
The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is January (8.7 days).
Average snowfall in October
Fairfield, IL
- Average snowfall in October: 0"
The months with the highest snowfall are January and February (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Fairfield, IL
- Average snowfall days in October: 0.2 days
The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Fairfield, IL
- 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 30min).
- Average sunshine in October: 6h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in October
Fairfield, IL
- Average sunshine days in October: 17.9 days
The month with the most sunshine days is October (17.9 days).
The month with the least sunshine days is May (9 days).
Average UV index in October
Fairfield, IL
- Average UV index in October: 3
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in October
Fairfield, IL
- Average cloud cover in October: 33
The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in October
Fairfield, IL
- 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).
