January weather forecast
Franklin, IL

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Weather in January

January, like December, in Franklin, Illinois, is an icy winter month, with an average temperature fluctuating between 21.4°F (-5.9°C) and 33.6°F (0.9°C).

Temperature

With average high temperatures of 33.6°F (0.9°C) and lows of 21.4°F (-5.9°C), January is the coldest month.

Humidity

In Franklin, the average relative humidity in January is 79%.

Rainfall

In Franklin, Illinois, in January, during 5.2 rainfall days, 0.91" (23mm) of precipitation is typically accumulated. In Franklin, during the entire year, the rain falls for 126.6 days and collects up to 17.95" (456mm) of precipitation.

Snowfall

Months with snowfall are January through April, November and December. The month with the most snowfall is January, when snow falls for 7.6 days and typically aggregates up to 1.57" (40mm) of snow.

Daylight

In January, the average length of the day is 9h and 45min.
On the first day of the month, sunrise is at 7:20 am and sunset at 4:46 pm. On the last day of January, sunrise is at 7:08 am and sunset at 5:18 pm CST.

Sunshine

The month with the least sunshine is January, with an average of 4.2h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 2 in January suggests the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Updated: Jun 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest month?

Franklin, Illinois, experiences its lowest temperatures in January, with an average peak of 33.6°F (0.9°C) and a low of 21.4°F (-5.9°C).

How cold is January?

The high-temperature, in January, in Franklin, is 33.6°F (0.9°C), while the low-temperature averages to 21.4°F (-5.9°C).

What is the average humidity in January?

In Franklin, the average relative humidity in January is 79%.

How much does it rain in January?

In Franklin, in January, during 5.2 rainfall days, 0.91" (23mm) of precipitation is typically accumulated.

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 7.6 days and accumulates 1.57" (40mm) of snow.

How many days does it snow in January?

In Franklin, Illinois, in January, during 7.6 snowfall days, 1.57" (40mm) of snow is typically accumulated.

How many hours of daylight does Franklin have in January?

The average day length in January is 9h and 45min.

When is the sunrise / sunset in January in Franklin?

In January, on the first day of the month, sunrise is at 7:20 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:18 pm CST.

What is the month with the least sunshine?

With an average of 4.2h of sunshine, January has the least sunshine of the year.

How many hours of sunshine does Franklin have in January?

In Franklin, the average sunshine duration in January is 4.2h.

When is the lowest UV index?

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

How high is the UV index in January?

In January, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health threat 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
Franklin, IL

Average temperature in January - Franklin, IL
  • Average high temperature in January: 33.6°F

The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (33.6°F).

  • Average low temperature in January: 21.4°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).

Average pressure in January
Franklin, IL

Average pressure in January - Franklin, IL
  • Average pressure in January: 30.15"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in January
Franklin, IL

Average wind speed in January - Franklin, IL
  • Average wind speed in January: 10.3mph

The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.1mph).

Average humidity in January
Franklin, IL

Average humidity in January - Franklin, IL
  • Average humidity in January: 79%

The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).

Average rainfall in January
Franklin, IL

Average rainfall in January - Franklin, IL
  • Average rainfall in January: 0.91"

The wettest month (with the highest rainfall) is June (2.36").
The driest months (with the least rainfall) are February and December (0.79").

Average rainfall days in January
Franklin, IL

Average rainfall days in January - Franklin, IL
  • Average rainfall days in January: 5.2 days

The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (5.2 days).

Average snowfall in January
Franklin, IL

Average snowfall in January - Franklin, IL
  • Average snowfall in January: 1.57"

The month with the highest snowfall is January (1.57").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Franklin, IL

Average snowfall days in January - Franklin, IL
  • Average snowfall days in January: 7.6 days

The month with the highest number of snowfall days is January (7.6 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
Franklin, IL

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in January: 4h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in January
Franklin, IL

Average sunshine days in January - Franklin, IL
  • Average sunshine days in January: 20.2 days

The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is July (12.9 days).

Average UV index in January
Franklin, IL

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

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

Average cloud cover in January
Franklin, IL

Average cloud cover in January - Franklin, IL
  • Average cloud cover in January: 55

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 30).

Average visibility in January
Franklin, IL

Average visibility in January - Franklin, 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).

Franklin, Illinois, USA

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