January weather forecast
Stockton, IL

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Weather in January

January, the same as December, in Stockton, Illinois, is another subzero cold winter month, with an average temperature varying between 12.7°F (-10.7°C) and 25.2°F (-3.8°C).

Temperature

January is the coldest month, with the temperature often reaching an average high of 25.2°F (-3.8°C) and an average low of 12.7°F (-10.7°C).

Humidity

January is the most humid month in Stockton, Illinois, with an average relative humidity of 87%.

Rainfall

January and February are months with the least rain in Stockton, Illinois, when the rain falls for 4.8 days and typically aggregates up to 1.26" (32mm) of rain.

Snowfall

Months with snowfall are January through April, October through December. January is the month with the most snowfall. Snow falls for 12.5 days and accumulates 4.84" (123mm) of snow.

Daylight

In January, the average length of the day in Stockton, Illinois, is 9h and 30min.
On the first day of the month, sunrise is at 7:29 am and sunset at 4:37 pm. On the last day of January, in Stockton, sunrise is at 7:14 am and sunset at 5:12 pm CST.

Sunshine

January has the least sunshine of the year in Stockton, with an average of 3.6h 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 reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A typical high UV index of 1 in January suggests the following recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. When the Sun is at its strongest around midday, find shade and limit exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year in Stockton?

January, recording an average high temperature of 25.2°F (-3.8°C) and a low temperature of 12.7°F (-10.7°C), is Stockton's coldest month.

How cold is January in Stockton?

In Stockton, in January, the average high-temperature is 25.2°F (-3.8°C), and the average low-temperature is 12.7°F (-10.7°C).

What is the most humid month in Stockton?

The most humid month in Stockton, Illinois, is January, with an average relative humidity of 87%.

What is the average humidity in January in Stockton?

The average relative humidity in January in Stockton is 87%.

What is the driest month in Stockton?

The months with the least rainfall are January and February Rain falls for 4.8 days and accumulates 1.26" (32mm) of rain.

How many days does it rain in January in Stockton?

In January, in Stockton, the rain falls for 4.8 days. Throughout January, 1.26" (32mm) of precipitation is accumulated.

When does it snow the most in Stockton?

The month with the most snowfall in Stockton is January, when snow falls for 12.5 days and typically aggregates up to 4.84" (123mm) of snow.

How many days does it snow in January in Stockton?

In Stockton, Illinois, in January, during 12.5 snowfall days, 4.84" (123mm) of snow is typically accumulated.

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

In Stockton, the average day length in January is 9h and 30min.

When is the sunrise / sunset in January in Stockton?

On the first day of January in Stockton, Illinois, sunrise is at 7:29 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 5:12 pm CST.

What is the month with the least sunshine in Stockton?

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

How long on average sun shines in January in Stockton?

The average sunshine duration in January in Stockton, Illinois, is 3.6h.

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

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

How high is the UV index in January in Stockton?

The average daily maximum UV index in January is 1. 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
Stockton, IL

Average temperature in January - Stockton, IL
  • Average high temperature in January: 25.2°F

The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (25.2°F).

  • Average low temperature in January: 12.7°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 (12.7°F).

Average pressure in January
Stockton, IL

Average pressure in January - Stockton, 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
Stockton, IL

Average wind speed in January - Stockton, IL
  • Average wind speed in January: 9.9mph

The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in January
Stockton, IL

Average humidity in January - Stockton, IL
  • Average humidity in January: 87%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (75%).

Average rainfall in January
Stockton, IL

Average rainfall in January - Stockton, IL
  • Average rainfall in January: 1.26"

The wettest months (with the highest rainfall) are May and June (3.66").
The driest months (with the least rainfall) are January and February (1.26").

Average rainfall days in January
Stockton, IL

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

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (4.8 days).

Average snowfall in January
Stockton, IL

Average snowfall in January - Stockton, IL
  • Average snowfall in January: 4.84"

The month with the highest snowfall is January (4.84").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in January
Stockton, IL

Average snowfall days in January - Stockton, IL
  • Average snowfall days in January: 12.5 days

The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in January / Average sunshine in January - Stockton, 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 6min).

  • Average sunshine in January: 3h and 4min

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

Average sunshine days in January
Stockton, IL

Average sunshine days in January - Stockton, IL
  • Average sunshine days in January: 15.6 days

The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (10.2 days).

Average UV index in January
Stockton, IL

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

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

Average cloud cover in January
Stockton, IL

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

The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 33).

Average visibility in January
Stockton, IL

Average visibility in January - Stockton, 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).

Stockton, Illinois, USA

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