January weather forecast
Nelson, IL

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Weather in January

January, the same as December, in Nelson, Illinois, is a freezing cold winter month, with temperature in the range of an average high of 27.7°F (-2.4°C) and an average low of 14.9°F (-9.5°C).

Temperature

Nelson's January weather, marked by an average high temperature of 27.7°F (-2.4°C) and an average low temperature of 14.9°F (-9.5°C), is the coldest in the year.

Humidity

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

Rainfall

The months with the least rainfall in Nelson, Illinois, are January and February Rain falls for 4.8 days and accumulates 0.75" (19mm) of rain.

Snowfall

January through April, October through December are months with snowfall. January is the month with the most snowfall. Snow falls for 10.2 days and accumulates 2.56" (65mm) of snow.

Daylight

In Nelson, the average length of the day in January is 9h and 33min.
On the first day of the month, sunrise is at 7:25 am and sunset at 4:38 pm. On the last day of January, sunrise is at 7:11 am and sunset at 5:11 pm CST.

Sunshine

January has the least sunshine of the year, with an average of 3.8h of sunshine.

UV index

In January, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: In January, a daily UV index of 2 turns into the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month in Nelson?

January stands out as Nelson's coldest month, with an average high-temperature of 27.7°F (-2.4°C) and a low-temperature of 14.9°F (-9.5°C).

How cold is January in Nelson?

In Nelson, 27.7°F (-2.4°C) is the average high-temperature and 14.9°F (-9.5°C) is the average low-temperature during January.

What are the most humid months in Nelson?

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

What is the average humidity in January in Nelson?

In January, the average relative humidity in Nelson is 85%.

What is the driest month in Nelson?

January and February are months with the least rain in Nelson when the rain falls for 4.8 days and typically aggregates up to 0.75" (19mm) of rain.

How many days does it rain in January in Nelson?

In Nelson, during January, the rain falls for 4.8 days and regularly aggregates up to 0.75" (19mm) of precipitation.

When does it snow the most in Nelson?

January is the month with the most snowfall in Nelson. Snow falls for 10.2 days and accumulates 2.56" (65mm) of snow.

How many days does it snow in January in Nelson?

In Nelson, Illinois, in January, during 10.2 snowfall days, 2.56" (65mm) of snow is typically accumulated.

How many hours of daylight does Nelson have in January?

In January, the average day length is 9h and 33min.

When are sunrise and sunset in January in Nelson?

In January, on the first day of the month, sunrise is at 7:25 am and sunset at 4:38 pm. On the last day of the month, in Nelson, Illinois, sunrise is at 7:11 am and sunset at 5:11 pm CST.

What is the month with the least sunshine in Nelson?

With an average of 3.8h of sunshine, January has the least sunshine of the year.

How long on average sun shines in January in Nelson?

The average sunshine duration in January is 3.8h.

How high is the UV index in January in Nelson?

In Nelson, Illinois, the average daily maximum UV index in January is 2. A UV Index of 2, and less, symbolizes a low health threat from exposure to the Sun's UV radiation.
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
Nelson, IL

Average temperature in January - Nelson, IL
  • Average high temperature in January: 27.7°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (27.7°F).

  • Average low temperature in January: 14.9°F

The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (14.9°F).

Average pressure in January
Nelson, IL

Average pressure in January - Nelson, 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).

Average wind speed in January
Nelson, IL

Average wind speed in January - Nelson, 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).

Average humidity in January
Nelson, IL

Average humidity in January - Nelson, 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 (73%).

Average rainfall in January
Nelson, IL

Average rainfall in January - Nelson, IL
  • Average rainfall in January: 0.75"

The wettest month (with the highest rainfall) is May (2.83").
The driest months (with the least rainfall) are January and February (0.75").

Average rainfall days in January
Nelson, IL

Average rainfall days in January - Nelson, IL
  • Average rainfall days in January: 4.8 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (4.8 days).

Average snowfall in January
Nelson, IL

Average snowfall in January - Nelson, IL
  • Average snowfall in January: 2.56"

The month with the highest snowfall is January (2.56").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Nelson, IL

Average snowfall days in January - Nelson, IL
  • Average snowfall days in January: 10.2 days

The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Nelson, 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 5min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days in January
Nelson, IL

Average sunshine days in January - Nelson, IL
  • Average sunshine days in January: 17 days

The months with the most sunshine days are November and December (18.8 days).
The month with the least sunshine days is June (11.3 days).

Average UV index in January
Nelson, IL

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

The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in January
Nelson, IL

Average cloud cover in January - Nelson, IL
  • Average cloud cover in January: 60

The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 31).

Average visibility in January
Nelson, IL

Average visibility in January - Nelson, 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).

Nelson, Illinois, USA

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