January weather forecast
Smithton, IL

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Weather in January

January, the same as December, is an icy winter month in Smithton, Illinois, with an average temperature varying between 25°F (-3.9°C) and 38.1°F (3.4°C).

Temperature

January, on average, is the coldest month, registering a high temperature of 38.1°F (3.4°C) and a low of 25°F (-3.9°C).

Humidity

In Smithton, the average relative humidity in January is 75%.

Rainfall

In Smithton, in January, during 5.5 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. In Smithton, during the entire year, the rain falls for 103.8 days and collects up to 10.24" (260mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. January is the month with the most snowfall. Snow falls for 4.3 days and accumulates 0.63" (16mm) of snow.

Daylight

The average length of the day in January is 9h and 51min.
On the first day of January, sunrise is at 7:17 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:20 pm CST.

Sunshine

With an average of 4.6h of sunshine, January has the least sunshine of the year.

UV index

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In January, the maximum UV index of 2 suggests this advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

Smithton's coldest temperatures are experienced in January, with average high temperatures of 38.1°F (3.4°C) and lows of 25°F (-3.9°C).

Is it cold during January?

The average high-temperature and low-temperature during January are 38.1°F (3.4°C) and 25°F (-3.9°C) respectively.

What is the average humidity in January in Smithton?

In January, the average relative humidity is 75%.

How many days does it rain in January in Smithton?

In January, the rain falls for 5.5 days. Throughout January, 0.79" (20mm) of precipitation is accumulated.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 4.3 days and accumulates 0.63" (16mm) of snow.

How much does it snow in January?

In Smithton, during January, snow falls for 4.3 days and regularly aggregates up to 0.63" (16mm) of snow.

What is the average length of the day in January?

In January, the average day length is 9h and 51min.

What time are sunrise and sunset in January?

On the first day of January, sunrise is at 7:17 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:20 pm CST.

What is the month with the least sunshine?

With an average of 4.6h of sunshine, January has the least sunshine of the year.

How many hours of sunshine does Smithton have in January?

In January, the average sunshine duration is 4.6h.

What is the month with the lowest UV index?

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

How high is the UV index in January?

In Smithton, 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
Smithton, IL

Average temperature in January - Smithton, IL
  • Average high temperature in January: 38.1°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.1°F).

  • Average low temperature in January: 25°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25°F).

Average pressure in January
Smithton, IL

Average pressure in January - Smithton, IL
  • Average pressure in January: 30.16"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in January
Smithton, IL

Average wind speed in January - Smithton, IL
  • Average wind speed in January: 9.4mph

The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).

Average humidity in January
Smithton, IL

Average humidity in January - Smithton, IL
  • Average humidity in January: 75%

The months with the highest relative humidity are May and July (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in January
Smithton, IL

Average rainfall in January - Smithton, IL
  • Average rainfall in January: 0.79"

The wettest month (with the highest rainfall) is May (1.34").
The driest month (with the least rainfall) is September (0.47").

Average rainfall days in January
Smithton, IL

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

The month with the highest number of rainy days is July (12.2 days).
The month with the least rainy days is December (5.3 days).

Average snowfall in January
Smithton, IL

Average snowfall in January - Smithton, IL
  • Average snowfall in January: 0.63"

The month with the highest snowfall is January (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in January
Smithton, IL

Average snowfall days in January - Smithton, IL
  • Average snowfall days in January: 4.3 days

The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in January / Average sunshine in January - Smithton, IL
  • Average daylight in January: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in January: 4h and 4min

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

Average sunshine days in January
Smithton, IL

Average sunshine days in January - Smithton, IL
  • Average sunshine days in January: 23.3 days

The month with the most sunshine days is January (23.3 days).
The month with the least sunshine days is July (15.1 days).

Average UV index in January
Smithton, IL

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

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in January
Smithton, IL

Average cloud cover in January - Smithton, IL
  • Average cloud cover in January: 50

The month with the most cloud cover is January (Cloud cover 50).
The months with the least cloud cover are June, July and August (Cloud cover 28).

Average visibility in January
Smithton, IL

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

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

Smithton, Illinois, USA

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