January weather forecast
Randolph, IL

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Weather in January

January, the same as December, in Randolph, Illinois, is another subzero cold winter month, with temperature in the range of an average high of 31.3°F (-0.4°C) and an average low of 19.8°F (-6.8°C).

Temperature

Randolph's coldest month, January, registers temperatures that range from a high of 31.3°F (-0.4°C) to a low of 19.8°F (-6.8°C).

Humidity

In Randolph, the average relative humidity in January is 81%.

Rainfall

In Randolph, in January, during 5.3 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. Throughout the year, in Randolph, there are 124.4 rainfall days, and 13.23" (336mm) of precipitation is accumulated.

Snowfall

January through April, November and December are months with snowfall in Randolph. January is the month with the most snowfall. Snow falls for 8.5 days and accumulates 1.61" (41mm) of snow.

Daylight

In January, the average length of the day is 9h and 41min.
On the first day of the month, sunrise is at 7:18 am and sunset at 4:39 pm. On the last day of January, in Randolph, sunrise is at 7:06 am and sunset at 5:12 pm CST.

Sunshine

With an average of 3.9h of sunshine, January has the least sunshine of the year in Randolph.

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 low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In January, the UV index of 2 transforms into the following advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. The solar radiation around mid-day is intense; avoid the Sun and stay safe. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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Frequently asked questions

What time of the year is the coldest in Randolph?

Randolph's January weather reaches an average high of 31.3°F (-0.4°C) and an average low of 19.8°F (-6.8°C), making it the coldest month.

How cold is it in Randolph in January?

In January, in Randolph, the average high-temperature is 31.3°F (-0.4°C), and the average low-temperature is 19.8°F (-6.8°C).

What is the average humidity in January in Randolph?

The average relative humidity in January in Randolph is 81%.

How many days does it rain in January in Randolph?

In Randolph, Illinois, during January, the rain falls for 5.3 days and regularly aggregates up to 0.83" (21mm) of precipitation.

What is the snowiest month in Randolph?

The month with the most snowfall is January, when snow falls for 8.5 days and typically aggregates up to 1.61" (41mm) of snow.

How many days does it snow in January in Randolph?

In Randolph, in January, during 8.5 snowfall days, 1.61" (41mm) of snow is typically accumulated.

How many hours of daylight does Randolph have in January?

The average day length in January in Randolph is 9h and 41min.

When is the sunrise / sunset in January in Randolph?

On the first day of January in Randolph, sunrise is at 7:18 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:12 pm CST.

What is the month with the least sunshine in Randolph?

January has the least sunshine of the year in Randolph, with an average of 3.9h of sunshine.

How long on average sun shines in January in Randolph?

In January, the average sunshine duration in Randolph, Illinois, is 3.9h.

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

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

What is the UV index reading in January in Randolph?

In Randolph, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a low health risk 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
Randolph, IL

Average temperature in January - Randolph, IL
  • Average high temperature in January: 31.3°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 (31.3°F).

  • Average low temperature in January: 19.8°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 (19.8°F).

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Average pressure in January
Randolph, IL

Average pressure in January - Randolph, IL
  • Average pressure in January: 30.14"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in January
Randolph, IL

Average wind speed in January - Randolph, IL
  • Average wind speed in January: 10.9mph

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

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Average humidity in January
Randolph, IL

Average humidity in January - Randolph, IL
  • Average humidity in January: 81%

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in January
Randolph, IL

Average rainfall in January - Randolph, IL
  • Average rainfall in January: 0.83"

The wettest month (with the highest rainfall) is May (1.69").
The driest month (with the least rainfall) is December (0.67").

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Average rainfall days in January
Randolph, IL

Average rainfall days in January - Randolph, IL
  • Average rainfall days in January: 5.3 days

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (5.3 days).

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Average snowfall in January
Randolph, IL

Average snowfall in January - Randolph, IL
  • Average snowfall in January: 1.61"

The month with the highest snowfall is January (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in January
Randolph, IL

Average snowfall days in January - Randolph, IL
  • Average snowfall days in January: 8.5 days

The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in January: 3h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in January
Randolph, IL

Average sunshine days in January - Randolph, IL
  • Average sunshine days in January: 19.6 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is May (11.7 days).

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Average UV index in January
Randolph, IL

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

The months with the highest UV index are June and July (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
Randolph, IL

Average cloud cover in January - Randolph, IL
  • Average cloud cover in January: 59

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 31).

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Average visibility in January
Randolph, IL

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

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

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Randolph, Illinois, USA

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