January weather forecast
Summerfield, IL

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Weather in January

January, like December, in Summerfield, Illinois, is another cold winter month, with an average temperature varying between 37.8°F (3.2°C) and 24.8°F (-4°C).

Temperature

In Summerfield, the lowest average temperatures are observed in January, with a high of 37.8°F (3.2°C) and a low of 24.8°F (-4°C).

Humidity

In January, the average relative humidity is 76%.

Rainfall

In Summerfield, in January, during 8 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. Throughout the year, in Summerfield, there are 151.1 rainfall days, and 30.43" (773mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In Summerfield, during January, snow falls for 7.5 days and regularly aggregates up to 1.3" (33mm) of snow. Throughout the year, there are 22.4 snowfall days, and 6.1" (155mm) of snow is accumulated.

Daylight

In January, the average length of the day in Summerfield is 9h and 50min.
On the first day of January, sunrise is at 7:16 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:19 pm CST.

Sunshine

The months with the least sunshine are January and February, with an average of 4.6h of sunshine.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A daily high UV index of 2 in January leads to these guidelines:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
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Frequently asked questions

What is the coldest month in Summerfield?

January, having an average high-temperature of 37.8°F (3.2°C) and an average low-temperature of 24.8°F (-4°C), is the coldest month.

How cold is January in Summerfield?

In Summerfield, in January, the average high-temperature is 37.8°F (3.2°C), and the average low-temperature is 24.8°F (-4°C).

What is the average humidity in January in Summerfield?

In Summerfield, Illinois, the average relative humidity in January is 76%.

How many days does it rain in January in Summerfield?

In Summerfield, Illinois, in January, it is raining for 8 days, with typically 1.89" (48mm) of accumulated precipitation.

How much does it snow in Summerfield in January?

In Summerfield, in January, snow falls for 7.5 days, with typically accumulated 1.3" (33mm) of snow.

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

In Summerfield, Illinois, the average day length in January is 9h and 50min.

When are sunrise and sunset in January in Summerfield?

On the first day of January in Summerfield, Illinois, sunrise is at 7:16 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:19 pm CST.

What are the months with the least sunshine in Summerfield?

The months with the least sunshine are January and February, with an average of 4.6h of sunshine.

How many hours of sunshine does Summerfield have in January?

The average sunshine duration in January is 4.6h.

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

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

How high is the UV index in January in Summerfield?

In Summerfield, the average daily maximum UV index in January is 2. 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
Summerfield, IL

Average temperature in January - Summerfield, IL
  • Average high temperature in January: 37.8°F

The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in January: 24.8°F

The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).

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Average pressure in January
Summerfield, IL

Average pressure in January - Summerfield, 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 (29.93"Hg).

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Average wind speed in January
Summerfield, IL

Average wind speed in January - Summerfield, IL
  • Average wind speed in January: 9.6mph

The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in January
Summerfield, IL

Average humidity in January - Summerfield, IL
  • Average humidity in January: 76%

The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in January
Summerfield, IL

Average rainfall in January - Summerfield, IL
  • Average rainfall in January: 1.89"

The wettest month (with the highest rainfall) is June (3.66").
The driest month (with the least rainfall) is February (1.5").

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Average rainfall days in January
Summerfield, IL

Average rainfall days in January - Summerfield, IL
  • Average rainfall days in January: 8 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (8 days).

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Average snowfall in January
Summerfield, IL

Average snowfall in January - Summerfield, IL
  • Average snowfall in January: 1.3"

The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Summerfield, IL

Average snowfall days in January - Summerfield, IL
  • Average snowfall days in January: 7.5 days

The month with the highest number of snowfall days is January (7.5 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
Summerfield, IL

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

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in January: 4h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January and February (Average sunshine: 4h and 36min).

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Average sunshine days in January
Summerfield, IL

Average sunshine days in January - Summerfield, IL
  • Average sunshine days in January: 16.4 days

The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is July (11 days).

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Average UV index in January
Summerfield, IL

Average UV index in January - Summerfield, 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, November and December (UV index 2).

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Average cloud cover in January
Summerfield, IL

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

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 28).

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Average visibility in January
Summerfield, IL

Average visibility in January - Summerfield, 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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Summerfield, Illinois, USA

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