January weather forecast
Holcomb, IL

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Weather in January

January, like December, is another subzero cold winter month in Holcomb, Illinois, with an average temperature fluctuating between 27°F (-2.8°C) and 14.7°F (-9.6°C).

Temperature

In Holcomb, the lowest temperatures are generally noted in January, averaging a high of 27°F (-2.8°C) and a low of 14.7°F (-9.6°C).

Humidity

January and July, with an average relative humidity of 85%, are the most humid months in Holcomb, Illinois.

Rainfall

In Holcomb, in January, during 4.4 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. Throughout the year, in Holcomb, there are 124.5 rainfall days, and 14.49" (368mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall in Holcomb. The month with the most snowfall is January, when snow falls for 10.3 days and typically aggregates up to 2.2" (56mm) of snow.

Daylight

In January, the average length of the day in Holcomb is 9h and 32min.
On the first day of the month, sunrise is at 7:24 am and sunset at 4:35 pm. On the last day of January, in Holcomb, sunrise is at 7:10 am and sunset at 5:09 pm CST.

Sunshine

With an average of 3.6h of sunshine, January has the least sunshine of the year.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 1 in January leads to these recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
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Frequently asked questions

What month is the coldest in Holcomb?

In Holcomb, January registers the lowest temperatures, averaging 27°F (-2.8°C) at the peak and 14.7°F (-9.6°C) at the lowest.

How cold is it in Holcomb in January?

In January, the average high-temperature and low-temperature in Holcomb are 27°F (-2.8°C) and 14.7°F (-9.6°C) respectively.

What are the most humid months in Holcomb?

The months with the highest humidity in Holcomb, Illinois, are January and July, with an average relative humidity of 85%.

What is the average humidity in January in Holcomb?

In January, the average relative humidity is 85%.

How many days does it rain in January in Holcomb?

In Holcomb, Illinois, during January, the rain falls for 4.4 days and regularly aggregates up to 0.63" (16mm) of precipitation.

What is the snowiest month in Holcomb?

January is the month with the most snowfall in Holcomb. Snow falls for 10.3 days and accumulates 2.2" (56mm) of snow.

How much does it snow in Holcomb in January?

In Holcomb, in January, during 10.3 snowfall days, 2.2" (56mm) of snow is typically accumulated.

How many hours of daylight does Holcomb have in January?

The average day length in January is 9h and 32min.

When are sunrise and sunset in January in Holcomb?

In January, on the first day of the month, sunrise is at 7:24 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:09 pm CST.

What is the month with the least sunshine in Holcomb?

The month with the least sunshine in Holcomb, Illinois, is January, with an average of 3.6h of sunshine.

How many hours of sunshine does Holcomb have in January?

In Holcomb, Illinois, the average sunshine duration in January is 3.6h.

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

January and December, with an average maximum UV index of 1, are months with the lowest UV index in Holcomb.

How high is the UV index in January in Holcomb?

The average daily maximum UV index in January in Holcomb is 1. A UV Index reading of 2, and below, represents a low health threat from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJanuaryFMAMJJASOND
Dec
January
Feb
Average high temperature
32.9°F 0.5°C
27°F -2.8°C
30.9°F -0.6°C
Average low temperature
22.8°F -5.1°C
14.7°F -9.6°C
18.1°F -7.7°C
Average pressure
30.1" 765mmHg
30.12" 765mmHg
30.11" 765mmHg
Average wind speed
9.4mph 15.1km/h
10mph 16.1km/h
10mph 16.1km/h
Average max. wind speed
10.2mph 16.4km/h
10.7mph 17.2km/h
10.7mph 17.2km/h
Average wind speed gusts
15mph 24.1km/h
15.8mph 25.4km/h
15.8mph 25.4km/h
Average humidity
83%
85%
84%
Average rainfall
0.71" 18mm
0.63" 16mm
0.55" 14mm
Average rainfall days
6.2
4.4
3.8
Average snowfall
0.87" 22mm
2.2" 56mm
1.5" 38mm
Average snowfall days
7.7
10.3
9.5
Average daylight
9h 1min
9h 3min
10h 4min
Average sunshine
3h 5min
3h 4min
3h 5min
Average sunshine days
18.4
17.4
15.7
Average UV index
1
1
2
Average cloud cover
59%
63%
60%
Average visibility
6mi 9.7km
5mi 8km
6mi 9.7km

Average temperature in January
Holcomb, IL

Average temperature in January - Holcomb, IL
  • Average high temperature in January: 27°F

The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (27°F).

  • Average low temperature in January: 14.7°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 (14.7°F).

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Average pressure in January
Holcomb, IL

Average pressure in January - Holcomb, IL
  • Average pressure in January: 30.12"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in January
Holcomb, IL

Average wind speed in January - Holcomb, IL
  • Average wind speed in January: 10mph

The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

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Average humidity in January
Holcomb, IL

Average humidity in January - Holcomb, IL
  • Average humidity in January: 85%

The months with the highest relative humidity are January and July (85%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in January
Holcomb, IL

Average rainfall in January - Holcomb, IL
  • Average rainfall in January: 0.63"

The wettest month (with the highest rainfall) is June (2.13").
The driest month (with the least rainfall) is February (0.55").

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Average rainfall days in January
Holcomb, IL

Average rainfall days in January - Holcomb, IL
  • Average rainfall days in January: 4.4 days

The month with the highest number of rainy days is June (16 days).
The month with the least rainy days is February (3.8 days).

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Average snowfall in January
Holcomb, IL

Average snowfall in January - Holcomb, IL
  • Average snowfall in January: 2.2"

The month with the highest snowfall is January (2.2").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Holcomb, IL

Average snowfall days in January - Holcomb, IL
  • Average snowfall days in January: 10.3 days

The month with the highest number of snowfall days is January (10.3 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
Holcomb, IL

Average daylight in January / Average sunshine in January - Holcomb, IL
  • Average daylight in January: 9h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in January: 3h and 4min

The month with the most sunshine is June (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in January
Holcomb, IL

Average sunshine days in January - Holcomb, IL
  • Average sunshine days in January: 17.4 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is June (10.9 days).

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Average UV index in January
Holcomb, IL

Average UV index in January - Holcomb, IL
  • Average UV index in January: 1

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

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Average cloud cover in January
Holcomb, IL

Average cloud cover in January - Holcomb, IL
  • Average cloud cover in January: 63

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 34).

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Average visibility in January
Holcomb, IL

Average visibility in January - Holcomb, IL
  • Average visibility in January: 5mi

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

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Holcomb, Illinois, USA

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