January weather forecast
Spring Grove, IL

Weather in January

January, the same as December, in Spring Grove, Illinois, is another subzero cold winter month, with average temperature varying between 26.2°F (-3.2°C) and 14.9°F (-9.5°C).

Temperature

The coldest month is January, with an average high-temperature of 26.2°F (-3.2°C) and an average low-temperature of 14.9°F (-9.5°C).

Humidity

The most humid month is January, with an average relative humidity of 85%.

Rainfall

In Spring Grove, in January, it is raining for 4.1 days, with typically 1.26" (32mm) of accumulated precipitation. In Spring Grove, during the entire year, the rain falls for 139.6 days and collects up to 26.18" (665mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. The month with the most snowfall is January when snow falls for 10.1 days and typically aggregates up to 4.33" (110mm) of snow.

Daylight

The average length of the day in January is 9.5h.

Sunshine

Months with the least sunshine in Spring Grove, Illinois, are January and February, with an average of 3.6h of sunshine.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Spring Grove. A UV Index reading of 2, and below, represents a low threat to health from the exposure to the Sun's UV radiation for the average person.
Note: In January, the average maximum UV index of 1 translate into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the coldest month in Spring Grove?

The coldest month is January, with an average high-temperature of 26.2°F (-3.2°C) and an average low-temperature of 14.9°F (-9.5°C).

What is the most humid month in Spring Grove?

January is the most humid month, with an average relative humidity of 85%.

What is the average humidity in January in Spring Grove?

The average relative humidity in January in Spring Grove is 85%.

How many days does it rain in January in Spring Grove?

In January, in Spring Grove, the rain falls for 4.1 days. Throughout January, 1.26" (32mm) of precipitation is accumulated.

What is the snowiest month in Spring Grove?

January is the month with the most snowfall. Snow falls for 10.1 days and accumulates 4.33" (110mm) of snow.

How much does it snow in Spring Grove in January?

In Spring Grove, in January, during 10.1 snowfall days, 4.33" (110mm) of snow is typically accumulated.

How many hours of daylight does Spring Grove have in January?

In January, the average length of the day in Spring Grove is 9.5h.

What is the month with the least sunshine in Spring Grove?

January and February, with an average of 3.6h of sunshine, are months with the least sunshine in Spring Grove.

How many hours of sunshine does Spring Grove have in January?

In January, the average sunshine in Spring Grove is 3.6h.

When is the lowest UV index in Spring Grove?

Months with the lowest UV index in Spring Grove are January and December, with an average maximum UV index of 1.

What is the UV index reading in January in Spring Grove?

In January, the average daily maximum UV index is 1. A UV Index of 2, and less, symbolizes a minimal hazard to health from the exposure to the Sun's UV radiation.

Average temperature in January
Spring Grove, IL

Average temperature in January - Spring Grove, IL
  • Average high temperature in January: 26.2°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (26.2°F).

  • Average low temperature in January: 14.9°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).

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Average pressure in January
Spring Grove, IL

Average pressure in January - Spring Grove, IL
  • Average pressure in January: 30.1"

Months with the highest atmospheric pressure are January and February (30.1").
The month with the lowest atmospheric pressure is June (29.92").

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Average wind speed in January
Spring Grove, IL

Average wind speed in January - Spring Grove, IL
  • Average wind speed in January: 10.3mph

The windiest months (with the highest average wind speed) are January and February (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

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Average humidity in January
Spring Grove, IL

Average humidity in January - Spring Grove, IL
  • Average humidity in January: 85%

The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (76%).

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Average rainfall in January
Spring Grove, IL

Average rainfall in January - Spring Grove, IL
  • Average rainfall in January: 1.26"

The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is December (1.06").

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Average rainfall days in January
Spring Grove, IL

Average rainfall days in January - Spring Grove, IL
  • Average rainfall days in January: 4.1 days

The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is February (3.4 days).

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Average snowfall in January
Spring Grove, IL

Average snowfall in January - Spring Grove, IL
  • Average snowfall in January: 4.33"

The month with the highest snowfall is January (4.33").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in January
Spring Grove, IL

Average snowfall days in January - Spring Grove, IL
  • Average snowfall days in January: 10.1 days

The month with the highest number of snowfall days is January (10.1 days).
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
Spring Grove, IL

Average daylight in January / Average sunshine in January - Spring Grove, IL
  • Average daylight in January: 9.5h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in January: 3.6h

Months with the most sunshine are July and August (Average sunshine: 9.9h).
Months with the least sunshine are January and February (Average sunshine: 3.6).

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Average sunshine days in January
Spring Grove, IL

Average sunshine days in January - Spring Grove, IL
  • Average sunshine days in January: 17.6 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (9.9 days).

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Average UV index in January
Spring Grove, IL

Average UV index in January - Spring Grove, IL
  • Average UV index in January: 1

Months with the highest UV index are May, June, July and August (UV index 5).
Months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in January
Spring Grove, IL

Average cloud cover in January - Spring Grove, IL
  • Average cloud cover in January: 63

The month with the most cloud cover is January (Cloud cover 63).
Months with the least cloud cover are July, August and September (Cloud cover 32).

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Average visibility in January
Spring Grove, IL

Average visibility in January - Spring Grove, IL
  • Average visibility in January: 6mi

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

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