February weather forecastDecatur, IL
February
Weather in February
The winter in February, hovering a touch above January's chilling norms, retains Decatur's freezing aura but brings some respite with the temperature rising slightly. The slight dip in snowfall to 1.73" (44mm) makes way for marginally friendlier conditions outdoors. Nonetheless, the campaign of layered clothing continues, complimented by survival essentials against the freezing winds, now a tad steadier than before. The days are imperceptibly lengthening, applying subtle hints of the eventual onset of spring. The subtle rise in temperature marks a slow but steady transition from the peak winters.Temperature
Decatur registers an average high-temperature of a still wintry 37.8°F (3.2°C) with the arrival of February, showing minor deviation from the preceding month. Throughout February, Decatur witnesses a nighttime temperature average of 25.2°F (-3.8°C).Humidity
In February, the average relative humidity in Decatur is 79%.Rainfall
February and December are months with the least rain when the rain falls for 5.8 days and typically aggregates up to 0.87" (22mm) of rain.Snowfall
January through April, November and December are months with snowfall. In February, it is snowing for 5.9 days. Throughout February, 1.73" (44mm) of snow is accumulated. Throughout the year, there are 23.1 snowfall days, and 5.67" (144mm) of snow is accumulated.Daylight
In Decatur, the average length of the day in February is 10h and 43min.On the first day of February in Decatur, Illinois, sunrise is at 7:03 am and sunset at 5:14 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 5:47 pm CST.
Sunshine
In Decatur, the average sunshine in February is 4.3h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 2 in February translates into the following instructions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in February
Decatur, IL
- Average high temperature in February: 37.8°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in February: 25.2°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in February
Decatur, IL
- Average pressure in February: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in February
Decatur, IL
- Average wind speed in February: 10.6mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in February
Decatur, IL
- Average humidity in February: 79%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).
Average rainfall in February
Decatur, IL
- Average rainfall in February: 0.87"
The wettest month (with the highest rainfall) is May (2.01").
The driest months (with the least rainfall) are February and December (0.87").
Average rainfall days in February
Decatur, IL
- Average rainfall days in February: 5.8 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in February
Decatur, IL
- Average snowfall in February: 1.73"
The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in February
Decatur, IL
- Average snowfall days in February: 5.9 days
The month with the highest number of snowfall days is January (7.2 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
Decatur, IL
- Average daylight in February: 10h and 42min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in February: 4h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in February
Decatur, IL
- Average sunshine days in February: 16.7 days
The month with the most sunshine days is October (19.8 days).
The month with the least sunshine days is May (11.5 days).
Average UV index in February
Decatur, 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
Decatur, IL
- Average cloud cover in February: 54
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in February
Decatur, IL
- Average visibility in February: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
