Contents
- Weather in February
- Frequently asked questions
- Average temperature in February
- Average pressure in February
- Average wind speed in February
- Average humidity in February
- Average rainfall in February
- Average rainfall days in February
- Average snowfall in February
- Average snowfall days in February
- Average daylight in February
- Average sunshine in February
- Average sunshine days in February
- Average UV index in February
- Average cloud cover in February
- Average visibility in February
Weather in February
Temperature
The shift into February finds O'Fallon at an average high-temperature of a still wintry 42.1°F (5.6°C), closely comparable to January's conditions. O'Fallon, during the nights of February, experiences an average temperature drop to a freezing cold 27.7°F (-2.4°C).Humidity
In February, the average relative humidity is 77%.Rainfall
In O'Fallon, in February, it is raining for 5.3 days, with typically 0.47" (12mm) of accumulated precipitation. Throughout the year, there are 108.8 rainfall days, and 10.24" (260mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In February, it is snowing for 4 days. Throughout February, 0.35" (9mm) of snow is accumulated. Throughout the year, there are 13.3 snowfall days, and 1.14" (29mm) of snow is accumulated.Daylight
The average length of the day in February is 10h and 47min.On the first day of February, sunrise is at 7:05 am and sunset at 5:21 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 5:52 pm CST.
Sunshine
In February, the average sunshine is 4.6h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In February, a regular UV index of 2 translates into these guidelines:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is February?
What is the average humidity in February?
How much does it rain in February?
How much does it snow in February?
How many hours of daylight does O'Fallon have in February?
When are sunrise and sunset in February?
How long on average sun shines in February?
What is the month with the lowest UV index?
How high is the UV index in February?
Average temperature in February
O'Fallon, IL
- Average high temperature in February: 42.1°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in February: 27.7°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure in February
O'Fallon, IL
- Average pressure in February: 30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in February
O'Fallon, IL
- Average wind speed in February: 9.4mph
The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).
Average humidity in February
O'Fallon, IL
- Average humidity in February: 77%
The months with the highest relative humidity are May, July and August (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in February
O'Fallon, IL
- Average rainfall in February: 0.47"
The wettest month (with the highest rainfall) is July (1.42").
The driest month (with the least rainfall) is December (0.31").
Average rainfall days in February
O'Fallon, IL
- Average rainfall days in February: 5.3 days
The month with the highest number of rainy days is July (13.1 days).
The month with the least rainy days is December (4.6 days).
Average snowfall in February
O'Fallon, IL
- Average snowfall in February: 0.35"
The month with the highest snowfall is January (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in February
O'Fallon, IL
- Average snowfall days in February: 4 days
The month with the highest number of snowfall days is January (4.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in February /
Average sunshine in February
O'Fallon, IL
- Average daylight in February: 10h and 5min
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 February: 4h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in February
O'Fallon, IL
- Average sunshine days in February: 19.6 days
The month with the most sunshine days is December (23.6 days).
The months with the least sunshine days are May and July (15.5 days).
Average UV index in February
O'Fallon, IL
- Average UV index in February: 2
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 February
O'Fallon, IL
- Average cloud cover in February: 50
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in February
O'Fallon, IL
- Average visibility in February: 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).
O'Fallon, Illinois, USA
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