Climate and monthly weather forecast
Sheridan, IL

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Weather in January

January, like December, is another subzero cold winter month in Sheridan, Illinois, with an average temperature ranging between max 28.8°F (-1.8°C) and min 17.1°F (-8.3°C). Sheridan's coldest month, January, generally records average temperatures ranging from a high of 28.8°F (-1.8°C) to a low of 17.1°F (-8.3°C). Weather in January »

Weather in February

The last month of the winter, February, is a wintry month in Sheridan, Illinois, with an average temperature varying between 33.1°F (0.6°C) and 19.9°F (-6.7°C). As Sheridan, Illinois, welcomes February, the average high-temperature records at a cold 33.1°F (0.6°C), marking an insignificant deviation from the prior month. Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Sheridan, Illinois, with an average temperature varying between 32°F (0°C) and 46.4°F (8°C). As March begins, there is an increase in the average high-temperature, moving from a wintry 33.1°F (0.6°C) in February to a frosty 46.4°F (8°C). Weather in March »

Weather in April

April in Sheridan, Illinois, is a moderate spring month, with an average temperature varying between 58.5°F (14.7°C) and 41.7°F (5.4°C). The rise of average high-temperatures is seen in April, with an increase from a frosty 46.4°F (8°C) in March to a moderate 58.5°F (14.7°C). Weather in April »

Weather in May

The last month of the spring, May, is a pleasant month in Sheridan, Illinois, with an average temperature ranging between min 53.1°F (11.7°C) and max 70.3°F (21.3°C). Sheridan in May experiences an increase in the average high-temperature, moving from April's refreshing 58.5°F (14.7°C) to a pleasant 70.3°F (21.3°C). Weather in May »

Weather in June

June, the first month of the summer in Sheridan, is a warm month, with an average temperature fluctuating between 61.3°F (16.3°C) and 78.6°F (25.9°C). Sheridan observes a slight ascent in average high-temperatures during June, adjusting from an agreeable 70.3°F (21.3°C) in May to a moderately hot 78.6°F (25.9°C). Weather in June »

Weather in July

July, like June, in Sheridan, Illinois, is another warm summer month, with an average temperature fluctuating between 64°F (17.8°C) and 81°F (27.2°C). July brings the highest temperatures, with an average high of 81°F (27.2°C) and an average low of 64°F (17.8°C). In July, the heat index is computed to be a tropical 87.8°F (31°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Sheridan, Illinois, with an average temperature fluctuating between 79.3°F (26.3°C) and 62.1°F (16.7°C). Sheridan's weather, upon August's arrival, documents an average high-temperature of a still moderately hot 79.3°F (26.3°C), nearly identical to the prior month. Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Sheridan, Illinois, with an average temperature varying between 56.1°F (13.4°C) and 74.5°F (23.6°C). September brings a marginal elevation to a still warm 74.5°F (23.6°C) from August's 79.3°F (26.3°C) in Sheridan's average high-temperatures. Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in Sheridan, Illinois, with an average temperature ranging between min 45.5°F (7.5°C) and max 61.7°F (16.5°C). The transition into October involves a decrease in the average high-temperature, falling from a moderately hot 74.5°F (23.6°C) in September to an enjoyable 61.7°F (16.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Sheridan, is also a frosty month, with an average temperature ranging between min 33.4°F (0.8°C) and max 46.8°F (8.2°C). Sheridan's weather undergoes a significant change with the arrival of November, as the average high-temperature drops from a refreshing 61.7°F (16.5°C) in October to a frosty 46.8°F (8.2°C). Weather in November »

Weather in December

December, the first month of the winter in Sheridan, is also a wintry month, with an average temperature ranging between min 24.8°F (-4°C) and max 34.7°F (1.5°C). A subtle decrease in the average high-temperature marks December, falling from November's frosty 46.8°F (8.2°C) to a wintry 34.7°F (1.5°C). Weather in December »
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the coldest time of year?

Sheridan's January weather reaches an average high of 28.8°F (-1.8°C) and an average low of 17.1°F (-8.3°C), making it the coldest month.

How many days does it rain?

Throughout the year, there are 97.4 rainfall days, and 8.07" (205mm) of precipitation is accumulated.

When does it snow?

Months with snowfall are January through April, October through December.

When does it snow the most?

The month with the most snowfall is January, when snow falls for 8.3 days and typically aggregates up to 0.98" (25mm) of snow.

How many days does it snow?

Throughout the year, there are 26.1 snowfall days, and 3.54" (90mm) of snow is accumulated.

What is the month with the least sunshine?

January has the least sunshine of the year, with an average of 3.8h of sunshine.

What is the month with the lowest UV index?

January and December, with an average maximum UV index of 1, are months with the lowest UV index.

When is Daylight Saving Time (DST)?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, 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?

May is the month with the most rainfall. Rain falls for 13.5 days and accumulates 1.14" (29mm) of precipitation.

When it does not snow?

May through September are months without snowfall.

When are the longest days?

With an average of 15h and 6min of daylight, June has the longest days of the year.

What are the months with the highest UV index?

June and July, with an average maximum UV index of 6, are months with the highest UV index.

What part of the year is the hottest?

July stands out as Sheridan's warmest month, with an average high-temperature of 81°F (27.2°C) and a low-temperature of 64°F (17.8°C).

What is the most humid month?

The most humid month in Sheridan is July, with an average relative humidity of 85%.

What month has the most sunshine?

August has the most sunshine of the year, with an average of 9.8h of sunshine.

What is the least humid month?

The least humid month in Sheridan is October, with an average relative humidity of 73%.

What is the driest month?

November is the month with the least rainfall. Rain falls for 5.4 days and accumulates 0.35" (9mm) of precipitation.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 12min of daylight.

Average temperature
Sheridan, IL

Average temperature - Sheridan, IL

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (28.8°F).

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure
Sheridan, IL

Average pressure - Sheridan, IL

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed
Sheridan, IL

Average wind speed - Sheridan, IL

The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity
Sheridan, IL

Average humidity - Sheridan, IL

The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (73%).

Average rainfall
Sheridan, IL

Average rainfall - Sheridan, IL

The wettest month (with the highest rainfall) is May (1.14").
The driest month (with the least rainfall) is November (0.35").

Average rainfall days
Sheridan, IL

Average rainfall days - Sheridan, IL

The month with the highest number of rainy days is May (13.5 days).
The month with the least rainy days is January (3 days).

Average snowfall
Sheridan, IL

Average snowfall - Sheridan, IL

The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Sheridan, IL

Average snowfall days - Sheridan, IL

The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight / Average sunshine
Sheridan, IL

Average daylight / Average sunshine - Sheridan, IL

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days
Sheridan, IL

Average sunshine days - Sheridan, IL

The month with the most sunshine days is December (23 days).
The month with the least sunshine days is May (14.7 days).

Average visibility
Sheridan, IL

Average visibility - Sheridan, 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).

Sheridan, Illinois, USA

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