January weather forecast
Somerset, IL

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Weather in January

January, like December, in Somerset, Illinois, is another cold winter month, with an average temperature fluctuating between 39.7°F (4.3°C) and 26.2°F (-3.2°C).

Temperature

The coldest period is January, when temperatures fluctuate between an average high of 39.7°F (4.3°C) and a low of 26.2°F (-3.2°C).

Humidity

The average relative humidity in January in Somerset is 77%.

Rainfall

In Somerset, Illinois, in January, it is raining for 9.8 days, with typically 2.68" (68mm) of accumulated precipitation. Throughout the year, in Somerset, there are 158.6 rainfall days, and 36.02" (915mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. The month with the most snowfall in Somerset is January, when snow falls for 5.3 days and typically aggregates up to 1.73" (44mm) of snow.

Daylight

The average length of the day in January is 9h and 55min.
On the first day of the month, sunrise is at 7:08 am and sunset at 4:45 pm. On the last day of January, in Somerset, sunrise is at 6:58 am and sunset at 5:15 pm CST.

Sunshine

The month with the least sunshine in Somerset is January, with an average of 4.6h of sunshine.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for average individuals.
Note: In January, a regular UV index of 2 translates into these guidelines:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
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Frequently asked questions

What is the coldest time of year in Somerset?

With average high and low temperatures of 39.7°F (4.3°C) and 26.2°F (-3.2°C) respectively, January is Somerset's coldest month.

Is it cold in Somerset during January?

January temperatures in Somerset, Illinois, vary between a high-temperature of 39.7°F (4.3°C) and a low-temperature of 26.2°F (-3.2°C).

What is the average humidity in January in Somerset?

In Somerset, Illinois, the average relative humidity in January is 77%.

How many days does it rain in January in Somerset?

In Somerset, during January, the rain falls for 9.8 days and regularly aggregates up to 2.68" (68mm) of precipitation.

What is the snowiest month in Somerset?

The month with the most snowfall is January, when snow falls for 5.3 days and typically aggregates up to 1.73" (44mm) of snow.

How many days does it snow in January in Somerset?

In Somerset, in January, snow falls for 5.3 days, with typically accumulated 1.73" (44mm) of snow.

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

In Somerset, the average day length in January is 9h and 55min.

When are sunrise and sunset in January in Somerset?

In January, on the first day of the month, sunrise is at 7:08 am and sunset at 4:45 pm. On the last day of the month, in Somerset, Illinois, sunrise is at 6:58 am and sunset at 5:15 pm CST.

What is the month with the least sunshine in Somerset?

January has the least sunshine of the year, with an average of 4.6h of sunshine.

How long on average sun shines in January in Somerset?

The average sunshine duration in January in Somerset is 4.6h.

What are the months with the lowest UV index in Somerset?

The months with the lowest UV index in Somerset, Illinois, are January, February and December, with an average maximum UV index of 2.

How high is the UV index in January in Somerset?

In January, the average daily maximum UV index in Somerset, Illinois, is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to UV radiation.
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
Somerset, IL

Average temperature in January - Somerset, IL
  • Average high temperature in January: 39.7°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in January: 26.2°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).

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Average pressure in January
Somerset, IL

Average pressure in January - Somerset, IL
  • Average pressure in January: 30.16"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in January
Somerset, IL

Average wind speed in January - Somerset, IL
  • Average wind speed in January: 9.4mph

The windiest months (with the highest average wind speed) are January and February (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.8mph).

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Average humidity in January
Somerset, IL

Average humidity in January - Somerset, IL
  • Average humidity in January: 77%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in January
Somerset, IL

Average rainfall in January - Somerset, IL
  • Average rainfall in January: 2.68"

The wettest month (with the highest rainfall) is April (4.8").
The driest month (with the least rainfall) is September (1.57").

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Average rainfall days in January
Somerset, IL

Average rainfall days in January - Somerset, IL
  • Average rainfall days in January: 9.8 days

The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is November (9.7 days).

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Average snowfall in January
Somerset, IL

Average snowfall in January - Somerset, IL
  • Average snowfall in January: 1.73"

The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Somerset, IL

Average snowfall days in January - Somerset, IL
  • Average snowfall days in January: 5.3 days

The month with the highest number of snowfall days is January (5.3 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
Somerset, IL

Average daylight in January / Average sunshine in January - Somerset, IL
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in January: 4h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

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Average sunshine days in January
Somerset, IL

Average sunshine days in January - Somerset, IL
  • Average sunshine days in January: 16.2 days

The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is May (9.9 days).

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Average UV index in January
Somerset, IL

Average UV index in January - Somerset, IL
  • Average UV index in January: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

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Average cloud cover in January
Somerset, IL

Average cloud cover in January - Somerset, IL
  • Average cloud cover in January: 51

The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and September (Cloud cover 28).

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Average visibility in January
Somerset, IL

Average visibility in January - Somerset, IL
  • Average visibility in January: 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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Somerset, Illinois, USA

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