February weather forecast
Lanark, IL

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Weather in February

As January hands over the reign to February, a subtle hint of an advancing spring season can be sensed in Lanark. The days become marginally longer by around an hour, hinting at the area's transition from winter to spring. Slight inclination in temperature renders a warmer touch compared to January, although the frigid winter blanket continues to prevail with 2.2" (56mm) of snowfall. The winds, gusting at a peak speed of 16mph (25.7km/h), bring along a bracing environment, carrying away the remaining traces of January's chill. An uptick in the UV index warns the inhabitants of longer daylight hours.

Temperature

The arrival of February brings an average high-temperature of a still subzero cold 29.8°F (-1.2°C), closely following the temperature pattern of January. During the month of February, the temperature generally drops to a low average of 16.9°F (-8.4°C).

Humidity

In Lanark, the average relative humidity in February is 85%.

Rainfall

The months with the least rainfall are January and February Rain falls for 4.4 days and accumulates 0.71" (18mm) of rain.

Snowfall

January through April, October through December are months with snowfall. In Lanark, Illinois, in February, snow falls for 9.3 days, with typically accumulated 2.2" (56mm) of snow. Throughout the year, there are 39.2 snowfall days, and 8.62" (219mm) of snow is accumulated.

Daylight

In Lanark, the average length of the day in February is 10h and 37min.
On the first day of February, sunrise is at 7:12 am and sunset at 5:13 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 5:48 pm CST.

Sunshine

In February, the average sunshine is 3.8h.

UV index

In February, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: The average daily UV index of 2 in February transforms into the following instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Updated: Aug 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is February?

The high-temperature, in February, in Lanark, records 29.8°F (-1.2°C), while the low-temperature is 16.9°F (-8.4°C).

What is the average humidity in February?

The average relative humidity in February in Lanark is 85%.

What is the driest month in Lanark?

The months with the least rainfall are January and February Rain falls for 4.4 days and accumulates 0.71" (18mm) of rain.

How much does it rain in February?

In February, the rain falls for 4.4 days. Throughout February, 0.71" (18mm) of precipitation is accumulated.

How much does it snow in February?

In Lanark, during February, snow falls for 9.3 days and regularly aggregates up to 2.2" (56mm) of snow.

How many hours of daylight does Lanark have in February?

In Lanark, Illinois, the average day length in February is 10h and 37min.

When are sunrise and sunset in February?

In February, on the first day of the month, sunrise is at 7:12 am and sunset at 5:13 pm. On the last day of the month, in Lanark, sunrise is at 6:34 am and sunset at 5:48 pm CST.

How long on average sun shines in February?

In February, the average sunshine duration is 3.8h.

What is the UV index intensity in February?

The average daily maximum UV index in February in Lanark is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Lanark, IL

Average temperature in February - Lanark, IL
  • Average high temperature in February: 29.8°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (25.9°F).

  • Average low temperature in February: 16.9°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (13.5°F).

Average pressure in February
Lanark, IL

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

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in February
Lanark, IL

Average wind speed in February - Lanark, IL
  • Average wind speed in February: 9.9mph

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in February
Lanark, IL

Average humidity in February - Lanark, IL
  • Average humidity in February: 85%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (75%).

Average rainfall in February
Lanark, IL

Average rainfall in February - Lanark, IL
  • Average rainfall in February: 0.71"

The wettest month (with the highest rainfall) is May (2.76").
The driest months (with the least rainfall) are January and February (0.71").

Average rainfall days in February
Lanark, IL

Average rainfall days in February - Lanark, IL
  • Average rainfall days in February: 4.4 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is February (4.4 days).

Average snowfall in February
Lanark, IL

Average snowfall in February - Lanark, IL
  • Average snowfall in February: 2.2"

The month with the highest snowfall is January (2.64").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in February
Lanark, IL

Average snowfall days in February - Lanark, IL
  • Average snowfall days in February: 9.3 days

The month with the highest number of snowfall days is January (11.2 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
Lanark, IL

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

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in February: 3h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in February
Lanark, IL

Average sunshine days in February - Lanark, IL
  • Average sunshine days in February: 16 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (10 days).

Average UV index in February
Lanark, IL

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

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

Average cloud cover in February
Lanark, IL

Average cloud cover in February - Lanark, IL
  • Average cloud cover in February: 59

The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 32).

Average visibility in February
Lanark, IL

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

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

Lanark, Illinois, USA

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