Climate and monthly weather forecast
Strawn, IL

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Weather in January

January, the same as December, in Strawn, Illinois, is a freezing cold winter month, with an average temperature varying between 18.5°F (-7.5°C) and 30.6°F (-0.8°C). With average high and low temperatures of 30.6°F (-0.8°C) and 18.5°F (-7.5°C) respectively, January is Strawn's coldest month. Weather in January »

Weather in February

February, the last month of the winter in Strawn, is an icy month, with an average temperature fluctuating between 21.7°F (-5.7°C) and 35.1°F (1.7°C). Strawn transitions into February recording an average high-temperature of a cold 35.1°F (1.7°C), closely aligning with the preceding month's temperature. Weather in February »

Weather in March

March, the first month of the spring in Strawn, is a frosty month, with temperature in the range of an average low of 33.4°F (0.8°C) and an average high of 47.7°F (8.7°C). March marks a rise in the average high-temperature, moving from February's icy 35.1°F (1.7°C) to a chilly 47.7°F (8.7°C). Weather in March »

Weather in April

April in Strawn, Illinois, is a moderate spring month, with an average temperature ranging between min 43.9°F (6.6°C) and max 59.7°F (15.4°C). Strawn in April sees a temperature change, with average high-temperatures moving from a chilly 47.7°F (8.7°C) in March to a moderate 59.7°F (15.4°C). Weather in April »

Weather in May

The last month of the spring, May, is an agreeable month in Strawn, Illinois, with an average temperature ranging between min 55°F (12.8°C) and max 71.6°F (22°C). In May, the meteorological conditions change with the average high-temperature moving from a refreshing 59.7°F (15.4°C) in April to an agreeable 71.6°F (22°C). Weather in May »

Weather in June

June, the first month of the summer in Strawn, is a moderately hot month, with temperature in the range of an average high of 79.3°F (26.3°C) and an average low of 62.8°F (17.1°C). Strawn's weather in June presents a minor rise in the average high-temperature, moving from an agreeable 71.6°F (22°C) in May to a warm 79.3°F (26.3°C). Weather in June »

Weather in July

July, the same as June, is a moderately hot summer month in Strawn, Illinois, with an average temperature varying between 80.8°F (27.1°C) and 64.6°F (18.1°C). July is the month that records the highest temperatures, with averages ranging from a high of 80.8°F (27.1°C) to a low of 64.6°F (18.1°C). July's mean heat index is computed 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 Strawn, Illinois, with temperature in the range of an average low of 62.6°F (17°C) and an average high of 79.7°F (26.5°C). The beginning of August reveals an average high-temperature of a still moderately hot 79.7°F (26.5°C), showing minimal deviation from the previous month. Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Strawn, Illinois, with an average temperature fluctuating between 57.2°F (14°C) and 75.7°F (24.3°C). The advent of September signifies a minor shift to an average high-temperature of a still warm 75.7°F (24.3°C), aligning closely with August. Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Strawn, Illinois, with an average temperature varying between 62.2°F (16.8°C) and 46.8°F (8.2°C). As October commences, the average high-temperature shows a reduction, transitioning from a moderately hot 75.7°F (24.3°C) in September to an enjoyable 62.2°F (16.8°C). Weather in October »

Weather in November

November, the last month of the autumn in Strawn, is another chilly month, with an average temperature varying between 34.9°F (1.6°C) and 47.8°F (8.8°C). November's onset brings a clear reduction in the average high-temperature, falling from a refreshing 62.2°F (16.8°C) in October to a frosty 47.8°F (8.8°C). Weather in November »

Weather in December

December, the first month of the winter in Strawn, is also a wintry month, with an average temperature ranging between max 36.5°F (2.5°C) and min 26.1°F (-3.3°C). December brings a minor decrease, with the average high-temperature reducing from a chilly 47.8°F (8.8°C) in November to a cold 36.5°F (2.5°C). Weather in December »
Updated: Jun 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the coldest?

January proves to be the coldest month, recording an average maximum temperature of 30.6°F (-0.8°C) and a minimum temperature of 18.5°F (-7.5°C).

What is the driest month?

The month with the least rainfall is January, when the rain falls for 5 days and typically collects 0.79" (20mm) of precipitation.

How much does it rain?

Throughout the year, there are 130.5 rainfall days, and 17.44" (443mm) of precipitation is accumulated.

When does it snow?

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

What is the snowiest month?

January is the month with the most snowfall. Snow falls for 10.6 days and accumulates 2.09" (53mm) of snow.

How much does it snow?

Throughout the year, there are 30.5 snowfall days, and 7.68" (195mm) 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.

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 wettest month?

The month with the most rainfall is May, when the rain falls for 17 days and typically aggregates up to 2.56" (65mm) 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 0min of daylight, June has the longest days of the year.

What month has the most sunshine?

With an average of 9.9h of sunshine, June has the most sunshine of the year.

What are the months with the highest UV index?

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

What month is the hottest?

In Strawn, July is the warmest month, with temperatures averaging a high of 80.8°F (27.1°C) and a low of 64.6°F (18.1°C).

What is the most humid month?

July is the most humid month, with an average relative humidity of 86%.

What is the least humid month?

With an average relative humidity of 71%, October is the least humid month.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 18min of daylight.

When is the lowest UV index?

December is the month with the lowest UV index, with an average maximum UV index of 1.

Average temperature
Strawn, IL

Average temperature - Strawn, IL

The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.6°F).

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).

Average pressure
Strawn, IL

Average pressure - Strawn, IL

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed
Strawn, IL

Average wind speed - Strawn, IL

The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).

Average rainfall
Strawn, IL

Average rainfall - Strawn, IL

The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is January (0.79").

Average rainfall days
Strawn, IL

Average rainfall days - Strawn, IL

The month with the highest number of rainy days is May (17 days).
The months with the least rainy days are January and February (5 days).

Average snowfall
Strawn, IL

Average snowfall - Strawn, IL

The month with the highest snowfall is January (2.09").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Strawn, IL

Average snowfall days - Strawn, IL

The month with the highest number of snowfall days is January (10.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Strawn, IL

Average daylight / Average sunshine - Strawn, IL

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).

Average sunshine days
Strawn, IL

Average sunshine days - Strawn, IL

The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.4 days).

Average visibility
Strawn, IL

Average visibility - Strawn, 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).

Strawn, Illinois, USA

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