February weather forecast and climate
Decatur, IL

Weather in February

The last month of the winter, February, is also a wintry month in Decatur, Illinois, with average temperature ranging between max 37.8°F (3.2°C) and min 25.2°F (-3.8°C).

Temperature

In Decatur, Illinois, the average high-temperature is practically the same as in January - a still wintry 37.8°F (3.2°C). In February, the average low-temperature is 25.2°F (-3.8°C).

Humidity

In February, the average relative humidity in Decatur is 79%.

Rainfall

Months with the least rainfall in Decatur are February and December Rain falls for 5.8 days and accumulates 0.87" (22mm) of rain.

Snowfall

January through April, November and December are months with snowfall in Decatur. In Decatur, during February, snow falls for 5.9 days and regularly aggregates up to 1.73" (44mm) of snow. Throughout the year, in Decatur, 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 10.7h.

Sunshine

In Decatur, the average sunshine is 4.3h.

UV index

Months with the lowest UV index in Decatur are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from the exposure to the Sun's UV rays for average individuals.
Note: The average daily UV index of 2 transform into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in February in Decatur?

The average relative humidity in February in Decatur, Illinois, is 79%.

What is the driest month in Decatur?

February and December are months with the least rain in Decatur, Illinois, when the rain falls for 5.8 days and typically aggregates up to 0.87" (22mm) of rain.

How much does it rain in Decatur in February?

In Decatur, during February, the rain falls for 5.8 days and regularly aggregates up to 0.87" (22mm) of precipitation.

How many days does it snow in February in Decatur?

In Decatur, in February, snow falls for 5.9 days, with typically accumulated 1.73" (44mm) of snow.

How many hours of daylight does Decatur have in February?

In Decatur, Illinois, the average length of the day in February is 10.7h.

How many hours of sunshine does Decatur have in February?

The average sunshine in February is 4.3h.

When is the lowest UV index in Decatur?

Months with the lowest UV index in Decatur, Illinois, are January, February, November and December, with an average maximum UV index of 2.

How high is the UV index in February in Decatur?

The average daily maximum UV index in February is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from unsafe exposure to the Sun's UV rays.

Average temperature in February
Decatur, IL

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).

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Average pressure in February
Decatur, IL

Average pressure in February - Decatur, IL
  • Average pressure in February: 30.12"

The month with the highest atmospheric pressure is January (30.15").
The month with the lowest atmospheric pressure is June (29.92").

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Average wind speed in February
Decatur, IL

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).

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Average humidity in February
Decatur, IL

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%).

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Average rainfall in February
Decatur, IL

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").

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Average rainfall days in February
Decatur, IL

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).

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Average snowfall in February
Decatur, IL

Average snowfall in February - Decatur, IL
  • Average snowfall in February: 1.73"

The month with the highest snowfall is January (1.85").
Months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in February
Decatur, IL

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).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in February /
Average sunshine in February
Decatur, IL

Average daylight in February / Average sunshine in February - Decatur, IL
  • Average daylight in February: 10.7h

The month with the longest days is June (Average daylight: 15h).
The month with the shortest days is December (Average daylight: 9.4h).

  • Average sunshine in February: 4.3h

The month with the most sunshine is June (Average sunshine: 10.4h).
The month with the least sunshine is January (Average sunshine: 4.1h).

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Average sunshine days in February
Decatur, IL

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).

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Average UV index in February
Decatur, IL

Average UV index in February - Decatur, IL
  • Average UV index in February: 2

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in February
Decatur, IL

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).

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Average visibility in February
Decatur, IL

Average visibility in February - Decatur, IL
  • Average visibility in February: 6mi

Months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
Months with the lowest visibility are July and August (5mi).

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