January weather forecast
Mechanicsburg, IL

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Weather in January

January, like December, in Mechanicsburg, Illinois, is an icy winter month, with an average temperature fluctuating between 33.4°F (0.8°C) and 21.4°F (-5.9°C).

Temperature

In Mechanicsburg, January records the lowest average temperatures, peaking at 33.4°F (0.8°C) and reaching a low of 21.4°F (-5.9°C).

Humidity

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

Rainfall

In Mechanicsburg, during January, the rain falls for 6.8 days and regularly aggregates up to 1.38" (35mm) of precipitation. In Mechanicsburg, during the entire year, the rain falls for 141.7 days and collects up to 22.72" (577mm) of precipitation.

Snowfall

Months with snowfall in Mechanicsburg, Illinois, are January through April, November and December. In January, in Mechanicsburg, it is snowing for 8.3 days. Throughout January, 1.54" (39mm) of snow is accumulated. In Mechanicsburg, during the entire year, snow falls for 27.9 days and aggregates up to 6.14" (156mm) of snow.

Daylight

The average length of the day in January is 9h and 44min.
On the first day of the month, sunrise is at 7:18 am and sunset at 4:43 pm. On the last day of January, in Mechanicsburg, Illinois, sunrise is at 7:06 am and sunset at 5:15 pm CST.

Sunshine

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

UV index

The months with the lowest UV index in Mechanicsburg are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In January, the maximum UV index of 2 suggests these recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. To protect against the Sun's most potent rays, avoid direct exposure around midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months in Mechanicsburg?

January is the coldest month in Mechanicsburg, Illinois, with an average high-temperature of 33.4°F (0.8°C) and an average low-temperature of 21.4°F (-5.9°C).

How cold is January in Mechanicsburg?

The high-temperature, in January, in Mechanicsburg, records 33.4°F (0.8°C), while the low-temperature is 21.4°F (-5.9°C).

What is the average humidity in January in Mechanicsburg?

The average relative humidity in January in Mechanicsburg is 79%.

How much does it rain in Mechanicsburg in January?

In Mechanicsburg, during January, the rain falls for 6.8 days and regularly aggregates up to 1.38" (35mm) of precipitation.

How many days does it snow in January in Mechanicsburg?

In Mechanicsburg, Illinois, during January, snow falls for 8.3 days and regularly aggregates up to 1.54" (39mm) of snow.

How many hours of daylight does Mechanicsburg have in January?

The average day length in January in Mechanicsburg is 9h and 44min.

When are sunrise and sunset in January in Mechanicsburg?

On the first day of January, sunrise is at 7:18 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 5:15 pm CST.

What is the month with the least sunshine in Mechanicsburg?

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

How long on average sun shines in January in Mechanicsburg?

The average sunshine duration in January is 4.2h.

What is the month with the lowest UV index in Mechanicsburg?

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

What is the UV index intensity in January in Mechanicsburg?

In Mechanicsburg, the average daily maximum UV index in January is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Mechanicsburg, IL

Average temperature in January - Mechanicsburg, IL
  • Average high temperature in January: 33.4°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in January: 21.4°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (21.4°F).

Average pressure in January
Mechanicsburg, IL

Average pressure in January - Mechanicsburg, 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 (29.92"Hg).

Average wind speed in January
Mechanicsburg, IL

Average wind speed in January - Mechanicsburg, IL
  • Average wind speed in January: 10.4mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in January
Mechanicsburg, IL

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

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (70%).

Average rainfall in January
Mechanicsburg, IL

Average rainfall in January - Mechanicsburg, IL
  • Average rainfall in January: 1.38"

The wettest month (with the highest rainfall) is April (2.64").
The driest month (with the least rainfall) is December (1.14").

Average rainfall days in January
Mechanicsburg, IL

Average rainfall days in January - Mechanicsburg, IL
  • Average rainfall days in January: 6.8 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (6.2 days).

Average snowfall in January
Mechanicsburg, IL

Average snowfall in January - Mechanicsburg, IL
  • Average snowfall in January: 1.54"

The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in January
Mechanicsburg, IL

Average snowfall days in January - Mechanicsburg, IL
  • Average snowfall days in January: 8.3 days

The month with the highest number of snowfall days is January (8.3 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
Mechanicsburg, IL

Average daylight in January / Average sunshine in January - Mechanicsburg, 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 24min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in January
Mechanicsburg, IL

Average sunshine days in January - Mechanicsburg, IL
  • Average sunshine days in January: 16.8 days

The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is July (11 days).

Average UV index in January
Mechanicsburg, IL

Average UV index in January - Mechanicsburg, 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
Mechanicsburg, IL

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

The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is June (Cloud cover 29).

Average visibility in January
Mechanicsburg, IL

Average visibility in January - Mechanicsburg, 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).

Mechanicsburg, Illinois, USA

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