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 ushering in of February brings an average high-temperature of a still wintry 40.6°F (4.8°C), closely mirroring the 35.6°F (2°C) of January. Williamson records a mean low-temperature of 26.4°F (-3.1°C) in February.Humidity
In February, the average relative humidity is 78%.Rainfall
February is the month with the least rainfall in Williamson. Rain falls for 5.9 days and accumulates 0.67" (17mm) of precipitation.Snowfall
January through March, November and December are months with snowfall in Williamson. In February, it is snowing for 5.5 days. Throughout February, 0.75" (19mm) of snow is accumulated. Throughout the year, in Williamson, there are 19.8 snowfall days, and 2.91" (74mm) of snow is accumulated.Daylight
In February, the average length of the day is 10h and 46min.On the first day of February in Williamson, sunrise is at 7:05 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 5:51 pm CST.
Sunshine
In February, the average sunshine is 4.5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Williamson, Illinois. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: A maximum high daily UV index of 2 during February translates into the following directions:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Frequently asked questions
How cold is it in Williamson in February?
What is the average humidity in February in Williamson?
What is the driest month in Williamson?
How many days does it rain in February in Williamson?
How much does it snow in Williamson in February?
What is the average length of the day in February in Williamson?
When are sunrise and sunset in February in Williamson?
How long on average sun shines in February in Williamson?
What is the month with the lowest UV index in Williamson?
How high is the UV index in February in Williamson?
Average temperature in February
Williamson, IL
- Average high temperature in February: 40.6°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in February: 26.4°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).
Average pressure in February
Williamson, 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 (29.92"Hg).
Average wind speed in February
Williamson, IL
- Average wind speed in February: 9.9mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in February
Williamson, IL
- Average humidity in February: 78%
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in February
Williamson, IL
- Average rainfall in February: 0.67"
The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in February
Williamson, IL
- Average rainfall days in February: 5.9 days
The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in February
Williamson, IL
- Average snowfall in February: 0.75"
The month with the highest snowfall is December (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in February
Williamson, IL
- Average snowfall days in February: 5.5 days
The month with the highest number of snowfall days is January (6.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in February /
Average sunshine in February
Williamson, IL
- Average daylight in February: 10h and 5min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in February: 4h and 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in February
Williamson, IL
- Average sunshine days in February: 17.2 days
The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is July (12.5 days).
Average UV index in February
Williamson, IL
- Average UV index in February: 2
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 2).
Average cloud cover in February
Williamson, IL
- Average cloud cover in February: 51
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 29).
Average visibility in February
Williamson, 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).
Williamson, Illinois, USA
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