January weather forecast
Forest Lake, IL

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Weather in January

January, the same as December, in Forest Lake, Illinois, is a freezing cold winter month, with an average temperature ranging between min 16.3°F (-8.7°C) and max 27.7°F (-2.4°C).

Temperature

January, having an average high-temperature of 27.7°F (-2.4°C) and an average low-temperature of 16.3°F (-8.7°C), is the coldest month.

Humidity

January and February, with an average relative humidity of 83%, are the most humid months.

Rainfall

In Forest Lake, in January, it is raining for 6.7 days, with typically 1.77" (45mm) of accumulated precipitation. Throughout the year, in Forest Lake, there are 163.1 rainfall days, and 32.24" (819mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Forest Lake, Illinois, are January through May, October through December. In January, in Forest Lake, it is snowing for 15.5 days. Throughout January, 6.14" (156mm) of snow is accumulated. Throughout the year, there are 55.5 snowfall days, and 22.95" (583mm) of snow is accumulated.

Daylight

In January, the average length of the day is 9h and 31min.
On the first day of the month, sunrise is at 7:20 am and sunset at 4:30 pm. On the last day of January, sunrise is at 7:06 am and sunset at 5:04 pm CST.

Sunshine

The month with the least sunshine in Forest Lake is January, with an average of 3.7h of sunshine.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.
Note: A maximum daily UV index of 1 during January morphs into the following directions:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. To protect against the Sun's most potent rays, avoid direct exposure around midday. Enhance your sun protection with tightly woven, yet airy clothing. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
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Frequently asked questions

What is the coldest month in Forest Lake?

In Forest Lake, January is known for its average lowest temperatures, reaching a high of 27.7°F (-2.4°C) and a low of 16.3°F (-8.7°C).

How cold is it in Forest Lake in January?

In January, in Forest Lake, the average high-temperature is 27.7°F (-2.4°C), and the average low-temperature is 16.3°F (-8.7°C).

What is the most humid month in Forest Lake?

January and February, with an average relative humidity of 83%, are most humid months.

What is the average humidity in January in Forest Lake?

The average relative humidity in January in Forest Lake, Illinois, is 83%.

How many days does it rain in January in Forest Lake?

In Forest Lake, during January, the rain falls for 6.7 days and regularly aggregates up to 1.77" (45mm) of precipitation.

How many days does it snow in January in Forest Lake?

In Forest Lake, in January, during 15.5 snowfall days, 6.14" (156mm) of snow is typically accumulated.

How many hours of daylight does Forest Lake have in January?

In January, the average day length is 9h and 31min.

When is the sunrise / sunset in January in Forest Lake?

In January, on the first day of the month, sunrise is at 7:20 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:04 pm CST.

What is the month with the least sunshine in Forest Lake?

January has the least sunshine of the year, with an average of 3.7h of sunshine.

How long on average sun shines in January in Forest Lake?

In Forest Lake, the average sunshine duration in January is 3.7h.

When is the lowest UV index in Forest Lake?

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Forest Lake, Illinois.

What is the UV index reading in January in Forest Lake?

In Forest Lake, Illinois, the average daily maximum UV index in January is 1. A UV Index of 2, and less, symbolizes a low health threat 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 January
Forest Lake, IL

Average temperature in January - Forest Lake, IL
  • Average high temperature in January: 27.7°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (27.7°F).

  • Average low temperature in January: 16.3°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.3°F).

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Average pressure in January
Forest Lake, IL

Average pressure in January - Forest Lake, IL
  • Average pressure in January: 30.11"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in January
Forest Lake, IL

Average wind speed in January - Forest Lake, IL
  • Average wind speed in January: 10.1mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

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Average humidity in January
Forest Lake, IL

Average humidity in January - Forest Lake, IL
  • Average humidity in January: 83%

The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in January
Forest Lake, IL

Average rainfall in January - Forest Lake, IL
  • Average rainfall in January: 1.77"

The wettest month (with the highest rainfall) is June (4.13").
The driest month (with the least rainfall) is November (1.61").

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Average rainfall days in January
Forest Lake, IL

Average rainfall days in January - Forest Lake, IL
  • Average rainfall days in January: 6.7 days

The month with the highest number of rainy days is May (20 days).
The month with the least rainy days is February (5.7 days).

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Average snowfall in January
Forest Lake, IL

Average snowfall in January - Forest Lake, IL
  • Average snowfall in January: 6.14"

The month with the highest snowfall is February (6.22").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Forest Lake, IL

Average snowfall days in January - Forest Lake, IL
  • Average snowfall days in January: 15.5 days

The month with the highest number of snowfall days is January (15.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Forest Lake, IL

Average daylight in January / Average sunshine in January - Forest Lake, IL
  • Average daylight in January: 9h and 3min

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 January: 3h and 4min

The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in January
Forest Lake, IL

Average sunshine days in January - Forest Lake, IL
  • Average sunshine days in January: 12.2 days

The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is June (8.4 days).

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Average UV index in January
Forest Lake, IL

Average UV index in January - Forest Lake, IL
  • Average UV index in January: 1

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

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Average cloud cover in January
Forest Lake, IL

Average cloud cover in January - Forest Lake, IL
  • Average cloud cover in January: 61

The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July, August and September (Cloud cover 31).

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Average visibility in January
Forest Lake, IL

Average visibility in January - Forest Lake, IL
  • Average visibility in January: 5mi

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

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Forest Lake, Illinois, USA

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