January weather forecast
Willisville, IL

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Weather in January

January, like December, in Willisville, Illinois, is an icy winter month, with an average temperature fluctuating between 25.7°F (-3.5°C) and 39°F (3.9°C).

Temperature

Willisville, Illinois, experiences its lowest average temperatures in January, reaching a peak of 39°F (3.9°C) and a minimum of 25.7°F (-3.5°C).

Humidity

In January, the average relative humidity in Willisville is 75%.

Rainfall

In Willisville, Illinois, in January, it is raining for 8.3 days, with typically 2.24" (57mm) of accumulated precipitation. Throughout the year, in Willisville, there are 159.4 rainfall days, and 37.2" (945mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. January is the month with the most snowfall in Willisville, Illinois. Snow falls for 7.1 days and accumulates 2.64" (67mm) of snow.

Daylight

The average length of the day in January in Willisville is 9h and 53min.
On the first day of the month, sunrise is at 7:14 am and sunset at 4:49 pm. On the last day of January, in Willisville, Illinois, sunrise is at 7:03 am and sunset at 5:19 pm CST.

Sunshine

The month with the least sunshine 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 value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: In January, an average UV index of 2 transforms into the following instructions:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Avoiding the Sun during its peak radiation time around midday is a healthy practice. 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. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
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Frequently asked questions

What month is the coldest in Willisville?

January is the month when Willisville sees the average lowest temperatures, with a high of 39°F (3.9°C) and a low of 25.7°F (-3.5°C).

How cold is it in Willisville in January?

In January, in Willisville, the average high-temperature is 39°F (3.9°C), and the average low-temperature is 25.7°F (-3.5°C).

What is the average humidity in January in Willisville?

In January, the average relative humidity in Willisville is 75%.

How much does it rain in Willisville in January?

In Willisville, Illinois, in January, it is raining for 8.3 days, with typically 2.24" (57mm) of accumulated precipitation.

When does it snow the most in Willisville?

January is the month with the most snowfall in Willisville. Snow falls for 7.1 days and accumulates 2.64" (67mm) of snow.

How much does it snow in Willisville in January?

In Willisville, in January, during 7.1 snowfall days, 2.64" (67mm) of snow is typically accumulated.

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

In Willisville, Illinois, the average day length in January is 9h and 53min.

What time are sunrise and sunset in January in Willisville?

In January, on the first day of the month, sunrise is at 7:14 am and sunset at 4:49 pm. On the last day of the month, in Willisville, sunrise is at 7:03 am and sunset at 5:19 pm CST.

What is the month with the least sunshine in Willisville?

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

How long on average sun shines in January in Willisville?

In January, the average sunshine duration in Willisville is 4.6h.

What is the month with the lowest UV index in Willisville?

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

What is the UV index reading in January in Willisville?

In Willisville, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low health risk from 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
Willisville, IL

Average temperature in January - Willisville, IL
  • Average high temperature in January: 39°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°F).

  • Average low temperature in January: 25.7°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 (25.7°F).

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Average pressure in January
Willisville, IL

Average pressure in January - Willisville, 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
Willisville, IL

Average wind speed in January - Willisville, IL
  • Average wind speed in January: 9.5mph

The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

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Average humidity in January
Willisville, IL

Average humidity in January - Willisville, IL
  • Average humidity in January: 75%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in January
Willisville, IL

Average rainfall in January - Willisville, IL
  • Average rainfall in January: 2.24"

The wettest month (with the highest rainfall) is May (4.49").
The driest months (with the least rainfall) are February and September (2.13").

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Average rainfall days in January
Willisville, IL

Average rainfall days in January - Willisville, IL
  • Average rainfall days in January: 8.3 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.3 days).

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Average snowfall in January
Willisville, IL

Average snowfall in January - Willisville, IL
  • Average snowfall in January: 2.64"

The month with the highest snowfall is January (2.64").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Willisville, IL

Average snowfall days in January - Willisville, IL
  • Average snowfall days in January: 7.1 days

The month with the highest number of snowfall days is January (7.1 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
Willisville, IL

Average daylight in January / Average sunshine in January - Willisville, 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 36min).

  • Average sunshine in January: 4h and 4min

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

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Average sunshine days in January
Willisville, IL

Average sunshine days in January - Willisville, IL
  • Average sunshine days in January: 16.9 days

The month with the most sunshine days is December (18.2 days).
The month with the least sunshine days is May (10.4 days).

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Average UV index in January
Willisville, IL

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

The months with the highest UV index are 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
Willisville, IL

Average cloud cover in January - Willisville, IL
  • Average cloud cover in January: 49

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 28).

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Average visibility in January
Willisville, IL

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

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