January weather forecast
Nachusa, IL

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Weather in January

January, the same as December, in Nachusa, Illinois, is another subzero cold winter month, with temperature in the range of an average low of 14.5°F (-9.7°C) and an average high of 26.8°F (-2.9°C).

Temperature

With average temperatures fluctuating between a high of 26.8°F (-2.9°C) and a low of 14.5°F (-9.7°C), January stands out as the coldest month.

Humidity

With an average relative humidity of 86%, January is the most humid month.

Rainfall

The months with the least rainfall in Nachusa are January and February Rain falls for 5.5 days and accumulates 1.57" (40mm) of rain.

Snowfall

January through April, October through December are months with snowfall. The month with the most snowfall is January, when snow falls for 12.4 days and typically aggregates up to 5.04" (128mm) of snow.

Daylight

In Nachusa, Illinois, the average length of the day in January is 9h and 33min.
On the first day of the month, sunrise is at 7:24 am and sunset at 4:37 pm. On the last day of January, sunrise is at 7:10 am and sunset at 5:10 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 3.7h of sunshine.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index of 1 during January translates into the following directions:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Enhance your sun protection with tightly woven, yet airy clothing. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
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Frequently asked questions

What is the coldest time of year in Nachusa?

With average temperatures fluctuating between a high of 26.8°F (-2.9°C) and a low of 14.5°F (-9.7°C), January stands out as the coldest month in Nachusa.

How cold is January in Nachusa?

The high-temperature, in January, in Nachusa, is 26.8°F (-2.9°C), while the low-temperature averages to 14.5°F (-9.7°C).

What is the most humid month in Nachusa?

January is the most humid month, with an average relative humidity of 86%.

What is the average humidity in January in Nachusa?

In January, the average relative humidity in Nachusa, Illinois, is 86%.

What is the driest month in Nachusa?

January and February are months with the least rain when the rain falls for 5.5 days and typically aggregates up to 1.57" (40mm) of rain.

How much does it rain in Nachusa in January?

In January, in Nachusa, Illinois, the rain falls for 5.5 days. Throughout January, 1.57" (40mm) of precipitation is accumulated.

When does it snow the most in Nachusa?

January is the month with the most snowfall. Snow falls for 12.4 days and accumulates 5.04" (128mm) of snow.

How many days does it snow in January in Nachusa?

In January, in Nachusa, it is snowing for 12.4 days. Throughout January, 5.04" (128mm) of snow is accumulated.

How many hours of daylight does Nachusa have in January?

The average day length in January is 9h and 33min.

What time are sunrise and sunset in January in Nachusa?

In January, on the first day of the month, sunrise is at 7:24 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 5:10 pm CST.

What is the month with the least sunshine in Nachusa?

With an average of 3.7h of sunshine, January has the least sunshine of the year in Nachusa.

How many hours of sunshine does Nachusa have in January?

In January, the average sunshine duration in Nachusa is 3.7h.

When is the lowest UV index in Nachusa?

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

What is the UV index reading in January in Nachusa?

In January, the average daily maximum UV index is 1. A UV Index estimate of 2, and below, represents 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
Nachusa, IL

Average temperature in January - Nachusa, IL
  • Average high temperature in January: 26.8°F

The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (26.8°F).

  • Average low temperature in January: 14.5°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (14.5°F).

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Average pressure in January
Nachusa, IL

Average pressure in January - Nachusa, 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
Nachusa, IL

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

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

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Average humidity in January
Nachusa, IL

Average humidity in January - Nachusa, IL
  • Average humidity in January: 86%

The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (74%).

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Average rainfall in January
Nachusa, IL

Average rainfall in January - Nachusa, IL
  • Average rainfall in January: 1.57"

The wettest month (with the highest rainfall) is May (4.65").
The driest months (with the least rainfall) are January and February (1.57").

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Average rainfall days in January
Nachusa, IL

Average rainfall days in January - Nachusa, IL
  • Average rainfall days in January: 5.5 days

The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (5.5 days).

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Average snowfall in January
Nachusa, IL

Average snowfall in January - Nachusa, IL
  • Average snowfall in January: 5.04"

The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in January
Nachusa, IL

Average snowfall days in January - Nachusa, IL
  • Average snowfall days in January: 12.4 days

The month with the highest number of snowfall days is January (12.4 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
Nachusa, IL

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

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 July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

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Average sunshine days in January
Nachusa, IL

Average sunshine days in January - Nachusa, IL
  • Average sunshine days in January: 13.8 days

The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is June (9.7 days).

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Average UV index in January
Nachusa, IL

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

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in January
Nachusa, IL

Average cloud cover in January - Nachusa, IL
  • Average cloud cover in January: 62

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 33).

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Average visibility in January
Nachusa, IL

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

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

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Nachusa, Illinois, USA

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