February weather forecast
Lake Bluff, IL

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Weather in February

February unfolds with a slight increment in temperature, marking a subtle transition towards spring. Snowfall tapers off from 4.13" (105mm) in January to 3.35" (85mm). The winter chill begins to recede, only to pave the way for dew-laden mornings and crisper sunsets. The landscape gently transforms, with frost-laden mornings and clear midday skies. Lake Bluff basks in the radiance of prolonged daylight as the month progresses, heralding the arrival of mild weather.

Temperature

With the onset of February in Lake Bluff, a modest change to a still subzero cold 31.3°F (-0.4°C) from January's 28.6°F (-1.9°C) is noted in high-temperature. Lake Bluff experiences an average temperature drop to a still subzero cold 21.6°F (-5.8°C) during February nights.

Humidity

January and February, with an average relative humidity of 82%, are the most humid months in Lake Bluff, Illinois.

Rainfall

In Lake Bluff, during February, the rain falls for 5.9 days and regularly aggregates up to 1.54" (39mm) of precipitation. In Lake Bluff, Illinois, during the entire year, the rain falls for 154.1 days and collects up to 30.24" (768mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. In Lake Bluff, in February, snow falls for 9.5 days, with typically accumulated 3.35" (85mm) of snow. Throughout the year, in Lake Bluff, there are 42.9 snowfall days, and 13.82" (351mm) of snow is accumulated.

Ocean temperature

With an average ocean temperature of 37°F (2.8°C), February is the month with the coldest seawater.
Note: While swimming, this scenario is perilously cold, dangerous, and potentially fatal. Hypothermia is almost imminent without proper insulated waterproof attire.

Daylight

In February, the average length of the day is 10h and 36min.
On the first day of February, sunrise is at 7:04 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 5:40 pm CST.

Sunshine

In Lake Bluff, the average sunshine in February is 3.9h.

UV index

The average daily maximum UV index in February is 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: A maximum high UV index of 2 in February translates into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
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Frequently asked questions

How cold is it in Lake Bluff in February?

An average high-temperature, in February, in Lake Bluff, is 31.3°F (-0.4°C) and the average low-temperature is 21.6°F (-5.8°C).

What are the most humid months in Lake Bluff?

The months with the highest humidity in Lake Bluff, Illinois, are January and February, with an average relative humidity of 82%.

What is the average humidity in February in Lake Bluff?

In Lake Bluff, the average relative humidity in February is 82%.

How many days does it rain in February in Lake Bluff?

In Lake Bluff, during February, the rain falls for 5.9 days and regularly aggregates up to 1.54" (39mm) of precipitation.

How many days does it snow in February in Lake Bluff?

In Lake Bluff, in February, snow falls for 9.5 days, with typically accumulated 3.35" (85mm) of snow.

What is the month with the coldest ocean in Lake Bluff?

With an average ocean temperature of 37°F (2.8°C), February is the month with the coldest seawater in Lake Bluff.

How cold is the water in February in Lake Bluff?

In February, the average ocean temperature in Lake Bluff is 37°F (2.8°C). For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.

What is the average length of the day in February in Lake Bluff?

In Lake Bluff, the average day length in February is 10h and 36min.

What time are sunrise and sunset in February in Lake Bluff?

In February, on the first day of the month, sunrise is at 7:04 am and sunset at 5:04 pm. On the last day of the month, sunrise is at 6:26 am and sunset at 5:40 pm CST.

How many hours of sunshine does Lake Bluff have in February?

The average sunshine duration in February in Lake Bluff is 3.9h.

What is the UV index reading in February in Lake Bluff?

In February, the average daily maximum UV index in Lake Bluff is 2. A UV Index reading of 2, and below, represents a minimal hazard to health from 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
Lake Bluff, IL

Average temperature in February - Lake Bluff, IL
  • Average high temperature in February: 31.3°F

The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (28.6°F).

  • Average low temperature in February: 21.6°F

The months with the highest average low temperature are July and August (66.7°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

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Average pressure in February
Lake Bluff, IL

Average pressure in February - Lake Bluff, IL
  • Average pressure in February: 30.09"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in February
Lake Bluff, IL

Average wind speed in February - Lake Bluff, IL
  • Average wind speed in February: 11.6mph

The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (7.4mph).

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Average humidity in February
Lake Bluff, IL

Average humidity in February - Lake Bluff, IL
  • Average humidity in February: 82%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in February
Lake Bluff, IL

Average rainfall in February - Lake Bluff, IL
  • Average rainfall in February: 1.54"

The wettest months (with the highest rainfall) are May and June (3.82").
The driest month (with the least rainfall) is December (1.3").

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Average rainfall days in February
Lake Bluff, IL

Average rainfall days in February - Lake Bluff, IL
  • Average rainfall days in February: 5.9 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (5.9 days).

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Average snowfall in February
Lake Bluff, IL

Average snowfall in February - Lake Bluff, IL
  • Average snowfall in February: 3.35"

The month with the highest snowfall is January (4.13").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in February
Lake Bluff, IL

Average snowfall days in February - Lake Bluff, IL
  • Average snowfall days in February: 9.5 days

The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average sea temperature in February
Lake Bluff, IL

Average sea temperature in February - Lake Bluff, IL
  • Average sea temperature in February: 37.1°F

The best month for swimming (with the highest average sea temperature) is August (73.3°F).
The coldest month (with the lowest average sea temperature) is February (37.1°F).

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Average daylight in February /
Average sunshine in February
Lake Bluff, IL

Average daylight in February / Average sunshine in February - Lake Bluff, 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 6min).

  • Average sunshine in February: 3h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

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Average sunshine days in February
Lake Bluff, IL

Average sunshine days in February - Lake Bluff, IL
  • Average sunshine days in February: 12.3 days

The month with the most sunshine days is December (15.3 days).
The month with the least sunshine days is April (10.8 days).

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Average UV index in February
Lake Bluff, IL

Average UV index in February - Lake Bluff, IL
  • Average UV index in February: 2

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

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Average cloud cover in February
Lake Bluff, IL

Average cloud cover in February - Lake Bluff, IL
  • Average cloud cover in February: 58

The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 27).

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Average visibility in February
Lake Bluff, IL

Average visibility in February - Lake Bluff, 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).

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Lake Bluff, Illinois, USA

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