January weather forecast
Andover, IL

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Weather in January

January, the same as December, in Andover, Illinois, is a freezing cold winter month, with an average temperature ranging between min 16.5°F (-8.6°C) and max 28.2°F (-2.1°C).

Temperature

Andover notes the coldest temperatures in January, with a high average of 28.2°F (-2.1°C) and a low of 16.5°F (-8.6°C).

Humidity

In January, the average relative humidity in Andover is 83%.

Rainfall

In Andover, in January, it is raining for 4 days, with typically 0.75" (19mm) of accumulated precipitation. Throughout the year, there are 127.7 rainfall days, and 17.8" (452mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall in Andover, Illinois. The month with the most snowfall in Andover is January, when snow falls for 10.5 days and typically aggregates up to 2.17" (55mm) of snow.

Daylight

In January, the average length of the day in Andover is 9h and 36min.
On the first day of January in Andover, Illinois, sunrise is at 7:26 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 5:15 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 4h of sunshine.

UV index

The month with the lowest UV index is January, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A maximum high daily UV index of 1 during January translates into the following directions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
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Frequently asked questions

What part of the year is the coldest in Andover?

In Andover, January is the month with the lowest recorded average temperatures, measuring a high of 28.2°F (-2.1°C) and a low of 16.5°F (-8.6°C).

How cold is January in Andover?

The average high-temperature and low-temperature during January are 28.2°F (-2.1°C) and 16.5°F (-8.6°C) respectively.

What is the average humidity in January in Andover?

In January, the average relative humidity is 83%.

How much does it rain in Andover in January?

In Andover, during January, the rain falls for 4 days and regularly aggregates up to 0.75" (19mm) of precipitation.

When does it snow the most in Andover?

The month with the most snowfall in Andover, Illinois, is January, when snow falls for 10.5 days and typically aggregates up to 2.17" (55mm) of snow.

How much does it snow in Andover in January?

In Andover, Illinois, in January, during 10.5 snowfall days, 2.17" (55mm) of snow is typically accumulated.

What is the average length of the day in January in Andover?

In January, the average day length in Andover is 9h and 36min.

When is the sunrise / sunset in January in Andover?

On the first day of January in Andover, sunrise is at 7:26 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 5:15 pm CST.

What is the month with the least sunshine in Andover?

January has the least sunshine of the year, with an average of 4h of sunshine.

How long on average sun shines in January in Andover?

In Andover, the average sunshine duration in January is 4h.

When is the lowest UV index in Andover?

With an average maximum UV index of 1, January is the month with the lowest UV index in Andover, Illinois.

What is the UV index intensity in January in Andover?

In Andover, the average daily maximum UV index in January is 1. A UV Index of 2, and less, symbolizes 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 January
Andover, IL

Average temperature in January - Andover, IL
  • Average high temperature in January: 28.2°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 (28.2°F).

  • Average low temperature in January: 16.5°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 (16.5°F).

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Average pressure in January
Andover, IL

Average pressure in January - Andover, IL
  • Average pressure in January: 30.13"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in January
Andover, IL

Average wind speed in January - Andover, IL
  • Average wind speed in January: 10.4mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

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Average humidity in January
Andover, IL

Average humidity in January - Andover, IL
  • Average humidity in January: 83%

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

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Average rainfall in January
Andover, IL

Average rainfall in January - Andover, IL
  • Average rainfall in January: 0.75"

The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is December (0.71").

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Average rainfall days in January
Andover, IL

Average rainfall days in January - Andover, IL
  • Average rainfall days in January: 4 days

The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (4 days).

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Average snowfall in January
Andover, IL

Average snowfall in January - Andover, IL
  • Average snowfall in January: 2.17"

The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Andover, IL

Average snowfall days in January - Andover, IL
  • Average snowfall days in January: 10.5 days

The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in January /
Average sunshine in January
Andover, IL

Average daylight in January / Average sunshine in January - Andover, IL
  • Average daylight in January: 9h 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 January: 4h and 0min

The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

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Average sunshine days in January
Andover, IL

Average sunshine days in January - Andover, IL
  • Average sunshine days in January: 16.8 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.2 days).

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Average UV index in January
Andover, IL

Average UV index in January - Andover, IL
  • Average UV index in January: 1

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

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Average cloud cover in January
Andover, IL

Average cloud cover in January - Andover, IL
  • Average cloud cover in January: 57

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 29).

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Average visibility in January
Andover, IL

Average visibility in January - Andover, IL
  • Average visibility in January: 6mi

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

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Andover, Illinois, USA

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