Climate and monthly weather forecast
Peotone, IL

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Weather in January

January, like December, is a freezing cold winter month in Peotone, Illinois, with an average temperature ranging between min 18.3°F (-7.6°C) and max 29.7°F (-1.3°C). The month of January, characterized by an average high of 29.7°F (-1.3°C) and a low of 18.3°F (-7.6°C), is recognized as the coldest. Weather in January »

Weather in February

February, the last month of the winter in Peotone, is an icy month, with temperature in the range of an average low of 21°F (-6.1°C) and an average high of 33.4°F (0.8°C). The advent of February brings an average high-temperature of an icy 33.4°F (0.8°C), exhibiting minor difference from the previous month. Weather in February »

Weather in March

The first month of the spring, March, is a frosty month in Peotone, Illinois, with temperature in the range of an average high of 46.4°F (8°C) and an average low of 32.5°F (0.3°C). In Peotone, the average high-temperature in March increases from a wintry 33.4°F (0.8°C) in February to a frosty 46.4°F (8°C). Weather in March »

Weather in April

April is a mild spring month in Peotone, Illinois, with an average temperature ranging between max 58.3°F (14.6°C) and min 42.1°F (5.6°C). An escalation in the average high-temperature is seen with the onset of April, moving from a chilly 46.4°F (8°C) in March to a mild 58.3°F (14.6°C). Weather in April »

Weather in May

May, the last month of the spring in Peotone, is a pleasant month, with an average temperature ranging between max 70.3°F (21.3°C) and min 53.2°F (11.8°C). As April transitions into May, Peotone sees a rise in the average high-temperature, moving from a moderate 58.3°F (14.6°C) to an agreeable 70.3°F (21.3°C). Weather in May »

Weather in June

The first month of the summer, June, is a warm month in Peotone, Illinois, with an average temperature fluctuating between 79°F (26.1°C) and 61.5°F (16.4°C). With the onset of June, Peotone observes a minor temperature ascent, with the average high-temperature adjusting from May's pleasant 70.3°F (21.3°C) to a moderately hot 79°F (26.1°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Peotone, Illinois, with temperature in the range of an average low of 64.8°F (18.2°C) and an average high of 81.3°F (27.4°C). July is the warmest month, with an average high-temperature of 81.3°F (27.4°C) and an average low-temperature of 64.8°F (18.2°C). The average heat index in July is calculated to be a hot 87.8°F (31°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Peotone, Illinois, with an average temperature ranging between min 63.1°F (17.3°C) and max 80.1°F (26.7°C). Peotone, Illinois, indicates an average high-temperature of a still warm 80.1°F (26.7°C) in August, showing minor variation from July's 81.3°F (27.4°C). Weather in August »

Weather in September

September, the first month of the autumn in Peotone, is still a warm month, with an average temperature varying between 74.8°F (23.8°C) and 57.2°F (14°C). On the advent of September, Peotone's average high-temperature exhibits a minor adjustment to a still warm 74.8°F (23.8°C) from August's 80.1°F (26.7°C). Weather in September »

Weather in October

October, like September, in Peotone, Illinois, is another refreshing autumn month, with an average temperature varying between 46.4°F (8°C) and 61.7°F (16.5°C). As September transitions to October, the average high-temperature falls from a moderately hot 74.8°F (23.8°C) to a comfortable 61.7°F (16.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is another chilly month in Peotone, Illinois, with an average temperature varying between 47.1°F (8.4°C) and 34.5°F (1.4°C). Peotone's November weather is characterized by a distinct downswing in high-temperatures, falling from October's comfortable 61.7°F (16.5°C) to a frosty 47.1°F (8.4°C). Weather in November »

Weather in December

December, the first month of the winter in Peotone, is also an icy month, with an average temperature varying between 25.9°F (-3.4°C) and 35.6°F (2°C). The onset of December comes with a shift in the average high-temperature, falling from a frosty 47.1°F (8.4°C) in November to an icy 35.6°F (2°C). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What month is the coldest in Peotone?

The month of January sees the average lowest temperatures in Peotone, Illinois, reaching 29.7°F (-1.3°C) at the peak and 18.3°F (-7.6°C) at the low.

How much does it rain in Peotone?

Throughout the year, there are 115.5 rainfall days, and 11.65" (296mm) of precipitation is accumulated.

When does it snow in Peotone?

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

What is the snowiest month in Peotone?

January is the month with the most snowfall. Snow falls for 10.2 days and accumulates 1.34" (34mm) of snow.

How many days does it snow in Peotone?

Throughout the year, in Peotone, Illinois, there are 33.7 snowfall days, and 4.92" (125mm) of snow is accumulated.

What is the month with the least sunshine in Peotone?

The month with the least sunshine is January, with an average of 3.7h of sunshine.

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

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

What is the most humid month in Peotone?

With an average relative humidity of 83%, February is the most humid month.

What is the driest month in Peotone?

February is the month with the least rainfall in Peotone. Rain falls for 4.4 days and accumulates 0.55" (14mm) of precipitation.

When is Daylight Saving Time (DST) in Peotone?

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 wettest month in Peotone?

May is the month with the most rainfall in Peotone. Rain falls for 14.2 days and accumulates 1.77" (45mm) of precipitation.

When it does not snow in Peotone?

May through September are months without snowfall.

When are the longest days in Peotone?

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

What are the months with the highest UV index in Peotone?

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

What is the hottest time of year in Peotone?

July registers as the month with the average highest temperatures in Peotone, Illinois, reaching 81.3°F (27.4°C) at its peak and 64.8°F (18.2°C) at the lowest.

What month has the most sunshine in Peotone?

With an average of 9.9h of sunshine, August has the most sunshine of the year in Peotone.

What is the least humid month in Peotone?

With an average relative humidity of 73%, October is the least humid month in Peotone, Illinois.

What is the month with the shortest days in Peotone?

The month with the shortest days in Peotone is December, with an average of 9h and 18min of daylight.

Average temperature
Peotone, IL

Average temperature - Peotone, IL

The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (29.7°F).

The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

Average pressure
Peotone, IL

Average pressure - Peotone, 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
Peotone, IL

Average wind speed - Peotone, IL

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity
Peotone, IL

Average humidity - Peotone, IL

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).

Average rainfall
Peotone, IL

Average rainfall - Peotone, IL

The wettest month (with the highest rainfall) is May (1.77").
The driest month (with the least rainfall) is February (0.55").

Average rainfall days
Peotone, IL

Average rainfall days - Peotone, IL

The month with the highest number of rainy days is May (14.2 days).
The month with the least rainy days is February (4.4 days).

Average snowfall
Peotone, IL

Average snowfall - Peotone, IL

The month with the highest snowfall is January (1.34").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Peotone, IL

Average snowfall days - Peotone, IL

The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Peotone, IL

Average daylight / Average sunshine - Peotone, 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 18min).

The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days
Peotone, IL

Average sunshine days - Peotone, IL

The month with the most sunshine days is November (20.8 days).
The months with the least sunshine days are June and July (12.2 days).

Average visibility
Peotone, IL

Average visibility - Peotone, IL

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).

Peotone, Illinois, USA

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