February weather forecast
Castleton, IL

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Weather in February

February, the last month of the winter in Castleton, is a cold month, with an average temperature varying between 21.6°F (-5.8°C) and 34.5°F (1.4°C).

Temperature

In February, Castleton's weather conditions record an average high-temperature of an icy 34.5°F (1.4°C), demonstrating little divergence from the preceding month. Nightly temperatures drop to an average low of 21.6°F (-5.8°C) in February.

Humidity

The average relative humidity in February in Castleton, Illinois, is 81%.

Rainfall

In February, in Castleton, Illinois, the rain falls for 4.2 days. Throughout February, 0.67" (17mm) of precipitation is accumulated. In Castleton, during the entire year, the rain falls for 116.8 days and collects up to 13.98" (355mm) of precipitation.

Snowfall

Months with snowfall in Castleton, Illinois, are January through April, October through December. In Castleton, in February, snow falls for 6.8 days, with typically accumulated 1.22" (31mm) of snow. Throughout the year, in Castleton, there are 26.8 snowfall days, and 6.26" (159mm) of snow is accumulated.

Daylight

In February, the average length of the day in Castleton is 10h and 40min.
On the first day of the month, sunrise is at 7:09 am and sunset at 5:14 pm. On the last day of February, sunrise is at 6:33 am and sunset at 5:49 pm CST.

Sunshine

The average sunshine in February in Castleton is 4.1h.

UV index

The average daily maximum UV index in February in Castleton is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: A typical high UV index of 2 in February suggests the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is February in Castleton?

During February, Castleton experiences an average high-temperature of 34.5°F (1.4°C) and a low-temperature of 21.6°F (-5.8°C).

What is the average humidity in February in Castleton?

In February, the average relative humidity in Castleton is 81%.

How many days does it rain in February in Castleton?

In Castleton, in February, during 4.2 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.

How many days does it snow in February in Castleton?

In February, in Castleton, Illinois, it is snowing for 6.8 days. Throughout February, 1.22" (31mm) of snow is accumulated.

What is the average length of the day in February in Castleton?

In February, the average day length in Castleton is 10h and 40min.

When are sunrise and sunset in February in Castleton?

On the first day of February in Castleton, sunrise is at 7:09 am and sunset at 5:14 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 5:49 pm CST.

How many hours of sunshine does Castleton have in February?

In Castleton, Illinois, the average sunshine duration in February is 4.1h.

What is the UV index intensity in February in Castleton?

The average daily maximum UV index in February in Castleton, Illinois, is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in February
Castleton, IL

Average temperature in February - Castleton, IL
  • Average high temperature in February: 34.5°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.7°F).

  • Average low temperature in February: 21.6°F

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).

Average pressure in February
Castleton, IL

Average pressure in February - Castleton, IL
  • Average pressure in February: 30.11"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in February
Castleton, IL

Average wind speed in February - Castleton, IL
  • Average wind speed in February: 10.4mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in February
Castleton, IL

Average humidity in February - Castleton, IL
  • Average humidity in February: 81%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

Average rainfall in February
Castleton, IL

Average rainfall in February - Castleton, IL
  • Average rainfall in February: 0.67"

The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in February
Castleton, IL

Average rainfall days in February - Castleton, IL
  • Average rainfall days in February: 4.2 days

The month with the highest number of rainy days is May (15.2 days).
The months with the least rainy days are January and February (4.2 days).

Average snowfall in February
Castleton, IL

Average snowfall in February - Castleton, IL
  • Average snowfall in February: 1.22"

The month with the highest snowfall is January (1.81").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in February
Castleton, IL

Average snowfall days in February - Castleton, IL
  • Average snowfall days in February: 6.8 days

The month with the highest number of snowfall days is January (8.6 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
Castleton, IL

Average daylight in February / Average sunshine in February - Castleton, IL
  • Average daylight in February: 10h and 4min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in February: 4h and 1min

The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in February
Castleton, IL

Average sunshine days in February - Castleton, IL
  • Average sunshine days in February: 18.8 days

The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is May (12.8 days).

Average UV index in February
Castleton, IL

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

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in February
Castleton, IL

Average cloud cover in February - Castleton, IL
  • Average cloud cover in February: 55

The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is September (Cloud cover 30).

Average visibility in February
Castleton, IL

Average visibility in February - Castleton, 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).

Castleton, Illinois, USA

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