January weather forecast
Metropolis, IL

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Weather in January

January, like December, in Metropolis, Illinois, is another cold winter month, with an average temperature ranging between min 28°F (-2.2°C) and max 41.4°F (5.2°C).

Temperature

With average temperatures fluctuating between a high of 41.4°F (5.2°C) and a low of 28°F (-2.2°C), January stands out as the coldest month.

Humidity

The average relative humidity in January is 76%.

Rainfall

In January, the rain falls for 11 days. Throughout January, 2.48" (63mm) of precipitation is accumulated. In Metropolis, during the entire year, the rain falls for 160.7 days and collects up to 36.73" (933mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In Metropolis, in January, during 4.3 snowfall days, 0.91" (23mm) of snow is typically accumulated. In Metropolis, during the entire year, snow falls for 12.9 days and aggregates up to 4.33" (110mm) of snow.

Daylight

In Metropolis, the average length of the day in January is 9h and 57min.
On the first day of January, sunrise is at 7:08 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 5:18 pm CST.

Sunshine

With an average of 4.7h of sunshine, January has the least sunshine of the year.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 2 in January transforms into the following instructions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Updated: Jun 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

January is the month when Metropolis experiences its coldest temperatures, averaging a high of 41.4°F (5.2°C) and a low of 28°F (-2.2°C).

How cold does it get in January?

The high-temperature during January is 41.4°F (5.2°C) and the low-temperature is 28°F (-2.2°C).

What is the average humidity in January?

The average relative humidity in January is 76%.

How much does it rain in January?

In January, the rain falls for 11 days. Throughout January, 2.48" (63mm) of precipitation is accumulated.

How many days does it snow in January in Metropolis?

In January, it is snowing for 4.3 days. Throughout January, 0.91" (23mm) of snow is accumulated.

How many hours of daylight does Metropolis have in January?

In Metropolis, the average day length in January is 9h and 57min.

When is the sunrise / sunset in January?

In January, on the first day of the month, sunrise is at 7:08 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 5:18 pm CST.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 4.7h of sunshine.

How many hours of sunshine does Metropolis have in January?

The average sunshine duration in January is 4.7h.

What is the month with the lowest UV index?

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

What is the UV index reading in January?

In January, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to 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
Metropolis, IL

Average temperature in January - Metropolis, IL
  • Average high temperature in January: 41.4°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (41.4°F).

  • Average low temperature in January: 28°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (28°F).

Average pressure in January
Metropolis, IL

Average pressure in January - Metropolis, IL
  • Average pressure in January: 30.17"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in January
Metropolis, IL

Average wind speed in January - Metropolis, IL
  • Average wind speed in January: 8.9mph

The windiest months (with the highest average wind speed) are January, March and April (8.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).

Average humidity in January
Metropolis, IL

Average humidity in January - Metropolis, IL
  • Average humidity in January: 76%

The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in January
Metropolis, IL

Average rainfall in January - Metropolis, IL
  • Average rainfall in January: 2.48"

The wettest month (with the highest rainfall) is April (4.29").
The driest month (with the least rainfall) is September (1.5").

Average rainfall days in January
Metropolis, IL

Average rainfall days in January - Metropolis, IL
  • Average rainfall days in January: 11 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is October (10.2 days).

Average snowfall in January
Metropolis, IL

Average snowfall in January - Metropolis, IL
  • Average snowfall in January: 0.91"

The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Metropolis, IL

Average snowfall days in January - Metropolis, 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
Metropolis, IL

Average daylight in January / Average sunshine in January - Metropolis, IL
  • Average daylight in January: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in January: 4h and 4min

The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in January
Metropolis, IL

Average sunshine days in January - Metropolis, IL
  • Average sunshine days in January: 16.5 days

The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is May (11 days).

Average UV index in January
Metropolis, IL

Average UV index in January - Metropolis, 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
Metropolis, IL

Average cloud cover in January - Metropolis, IL
  • Average cloud cover in January: 49

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is September (Cloud cover 26).

Average visibility in January
Metropolis, IL

Average visibility in January - Metropolis, 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).

Metropolis, Illinois, USA

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