Climate and monthly 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). 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). Weather in January »

Weather in February

The last month of the winter, February, is also an icy month in Mechanicsburg, Illinois, with temperature in the range of an average low of 25.2°F (-3.8°C) and an average high of 38.3°F (3.5°C). The shift to February signals an average high-temperature of a still cold 38.3°F (3.5°C), subtly varied from January's 33.4°F (0.8°C). Weather in February »

Weather in March

The first month of the spring, March, is a cool month in Mechanicsburg, Illinois, with temperature in the range of an average low of 36°F (2.2°C) and an average high of 51.3°F (10.7°C). The onset of March marks an increase in the average high-temperature, moving from an icy 38.3°F (3.5°C) in February to a fresh 51.3°F (10.7°C). Weather in March »

Weather in April

April is a refreshing spring month in Mechanicsburg, Illinois, with an average temperature ranging between min 46.2°F (7.9°C) and max 63.1°F (17.3°C). Mechanicsburg's weather shows a temperature rise with the arrival of April, moving from a fresh 51.3°F (10.7°C) in March to a comfortable 63.1°F (17.3°C). Weather in April »

Weather in May

May, the last month of the spring in Mechanicsburg, is a pleasant month, with temperature in the range of an average low of 56.5°F (13.6°C) and an average high of 72.9°F (22.7°C). May brings a temperature increase, with average high-temperatures moving from April's comfortable 63.1°F (17.3°C) to a pleasant 72.9°F (22.7°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Mechanicsburg, Illinois, with an average temperature ranging between min 64.6°F (18.1°C) and max 81.1°F (27.3°C). June's arrival coincides with a subtle temperature rise, moving from May's agreeable 72.9°F (22.7°C) to a moderately hot 81.1°F (27.3°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Mechanicsburg, Illinois, with an average temperature ranging between max 82.8°F (28.2°C) and min 66°F (18.9°C). July, marked by an average high-temperature of 82.8°F (28.2°C) and a low-temperature of 66°F (18.9°C), is the warmest month. During July, the heat index is estimated at a hot 91.4°F (33°C). Weather in July »

Weather in August

August, the last month of the summer in Mechanicsburg, is also a moderately hot month, with temperature in the range of an average high of 81.9°F (27.7°C) and an average low of 64°F (17.8°C). Mechanicsburg marks the arrival of August with an average high-temperature of a still warm 81.9°F (27.7°C), hardly different from July's 82.8°F (28.2°C). Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Mechanicsburg, Illinois, with an average temperature varying between 77.4°F (25.2°C) and 58.6°F (14.8°C). September's climate shows a minor adjustment in average high-temperatures to a still warm 77.4°F (25.2°C) from August's 81.9°F (27.7°C). Weather in September »

Weather in October

October, the same as September, is another refreshing autumn month in Mechanicsburg, Illinois, with an average temperature varying between 64.2°F (17.9°C) and 48.2°F (9°C). In Mechanicsburg, the average high-temperature in October drops from a moderately hot 77.4°F (25.2°C) in September to a refreshing 64.2°F (17.9°C). Weather in October »

Weather in November

November, the last month of the autumn in Mechanicsburg, is another cool month, with temperature in the range of an average high of 50.2°F (10.1°C) and an average low of 36.3°F (2.4°C). A shift in the average high-temperature occurs in November, reducing from an enjoyable 64.2°F (17.9°C) in October to a fresh 50.2°F (10.1°C). Weather in November »

Weather in December

The first month of the winter, December, is also a wintry month in Mechanicsburg, Illinois, with an average temperature varying between 38.7°F (3.7°C) and 28.2°F (-2.1°C). December comes with a drop in the average high-temperature, falling from November's cool 50.2°F (10.1°C) to an icy 38.7°F (3.7°C). Weather in December »
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, 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 many days does it rain in Mechanicsburg?

Throughout the year, there are 141.7 rainfall days, and 22.72" (577mm) of precipitation is accumulated.

When does it snow in Mechanicsburg?

Months with snowfall in Mechanicsburg are January through April, November and December.

How much does it snow in Mechanicsburg?

In Mechanicsburg, Illinois, during the entire year, snow falls for 27.9 days and aggregates up to 6.14" (156mm) of snow.

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 in Mechanicsburg, Illinois.

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.

When does it snow the most in Mechanicsburg?

The month with the most snowfall in Mechanicsburg is February, when snow falls for 7.3 days and typically aggregates up to 1.85" (47mm) of snow.

When is Daylight Saving Time (DST) in Mechanicsburg?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Mechanicsburg, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.

What is the rainiest month in Mechanicsburg?

April is the month with the most rainfall in Mechanicsburg, Illinois. Rain falls for 14.1 days and accumulates 2.64" (67mm) of precipitation.

When it does not snow in Mechanicsburg?

May through October are months without snowfall in Mechanicsburg.

When are the longest days in Mechanicsburg?

With an average of 14h and 54min of daylight, June has the longest days of the year.

What month has the most sunshine in Mechanicsburg?

With an average of 10.4h of sunshine, June has the most sunshine of the year in Mechanicsburg, Illinois.

When is the highest UV index in Mechanicsburg?

June through August, with an average maximum UV index of 6, are months with the highest UV index in Mechanicsburg.

What month is the hottest in Mechanicsburg?

July, recognised by an average high temperature of 82.8°F (28.2°C) and a low of 66°F (18.9°C), is Mechanicsburg's warmest month.

What is the most humid month in Mechanicsburg?

With an average relative humidity of 84%, July is the most humid month.

What is the least humid month in Mechanicsburg?

The least humid month in Mechanicsburg, Illinois, is October, with an average relative humidity of 70%.

What is the driest month in Mechanicsburg?

The month with the least rainfall in Mechanicsburg is December, when the rain falls for 7.5 days and typically collects 1.14" (29mm) of precipitation.

What is the month with the shortest days in Mechanicsburg?

With an average of 9h and 24min of daylight, December has the shortest days of the year.

Average temperature
Mechanicsburg, IL

Average temperature - Mechanicsburg, IL

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).

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
Mechanicsburg, IL

Average pressure - Mechanicsburg, IL

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
Mechanicsburg, IL

Average wind speed - Mechanicsburg, IL

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
Mechanicsburg, IL

Average humidity - Mechanicsburg, IL

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

Average rainfall
Mechanicsburg, IL

Average rainfall - Mechanicsburg, IL

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
Mechanicsburg, IL

Average rainfall days - Mechanicsburg, IL

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
Mechanicsburg, IL

Average snowfall - Mechanicsburg, IL

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
Mechanicsburg, IL

Average snowfall days - Mechanicsburg, IL

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 / Average sunshine
Mechanicsburg, IL

Average daylight / Average sunshine - Mechanicsburg, IL

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).

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
Mechanicsburg, IL

Average sunshine days - Mechanicsburg, IL

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
Mechanicsburg, IL

Average UV index - Mechanicsburg, IL

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 visibility
Mechanicsburg, IL

Average visibility - Mechanicsburg, IL

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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