Climate and monthly weather forecast
Walnut Hill, IL

Weather in January

January, like December, in Walnut Hill, Illinois, is another cold winter month, with an average temperature ranging between min 24.3°F (-4.3°C) and max 37.2°F (2.9°C). With an average high-temperature of 37.2°F (2.9°C) and an average low-temperature of 24.3°F (-4.3°C), January is the coldest month. Weather in January »

Weather in February

The last month of the winter, February, is another cold month in Walnut Hill, Illinois, with an average temperature varying between 28.2°F (-2.1°C) and 42.1°F (5.6°C). In February, the average high-temperature is relatively the same as in January - a still wintry 42.1°F (5.6°C). Weather in February »

Weather in March

The first month of the spring, March, is a fresh month in Walnut Hill, Illinois, with an average temperature fluctuating between 53.8°F (12.1°C) and 37.9°F (3.3°C). In Walnut Hill, the average high-temperature in March increases from a cold 42.1°F (5.6°C) in February to a fresh 53.8°F (12.1°C). Weather in March »

Weather in April

April is a comfortable spring month in Walnut Hill, Illinois, with temperature in the range of an average low of 47.7°F (8.7°C) and an average high of 64.6°F (18.1°C). In April, the average high-temperature increases from a fresh 53.8°F (12.1°C) in March to a comfortable 64.6°F (18.1°C). Weather in April »

Weather in May

The last month of the spring, May, is a moderately hot month in Walnut Hill, Illinois, with an average temperature ranging between max 74.5°F (23.6°C) and min 57.7°F (14.3°C). In Walnut Hill, the average high-temperature in May rises from an enjoyable 64.6°F (18.1°C) in April to a warm 74.5°F (23.6°C). Weather in May »

Weather in June

June, the first month of the summer in Walnut Hill, is still a warm month, with temperature in the range of an average low of 66.4°F (19.1°C) and an average high of 83.3°F (28.5°C). In Walnut Hill, Illinois, the average high-temperature in June marginally rises from 74.5°F (23.6°C) in May to a still warm 83.3°F (28.5°C). Weather in June »

Weather in July

July, the same as June, is another warm summer month in Walnut Hill, Illinois, with an average temperature fluctuating between 84.9°F (29.4°C) and 67.6°F (19.8°C). July is the warmest month, with an average high-temperature of 84.9°F (29.4°C) and an average low-temperature of 67.6°F (19.8°C). The average heat index in July is estimated at a sweltering 96.8°F (36°C). Weather in July »

Weather in August

August, the last month of the summer in Walnut Hill, is another warm month, with an average temperature fluctuating between 65.8°F (18.8°C) and 83.8°F (28.8°C). In Walnut Hill, the average high-temperature in August is essentially the same as in July - a still warm 83.8°F (28.8°C). Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in Walnut Hill, Illinois, with an average temperature ranging between max 78.4°F (25.8°C) and min 59.9°F (15.5°C). In Walnut Hill, Illinois, the average high-temperature in September slightly decreases from a warm 83.8°F (28.8°C) in August to a still moderately hot 78.4°F (25.8°C). Weather in September »

Weather in October

October, the same as September, is another comfortable autumn month in Walnut Hill, Illinois, with temperature in the range of an average high of 66.2°F (19°C) and an average low of 49.1°F (9.5°C). In Walnut Hill, Illinois, the average high-temperature in October decreases from a warm 78.4°F (25.8°C) in September to a comfortable 66.2°F (19°C). Weather in October »

Weather in November

The last month of the autumn, November, is another cool month in Walnut Hill, Illinois, with an average temperature varying between 52.3°F (11.3°C) and 37.9°F (3.3°C). In November, the average high-temperature drops from a comfortable 66.2°F (19°C) in October to a cool 52.3°F (11.3°C). Weather in November »

Weather in December

December, the first month of the winter in Walnut Hill, is still a cold month, with an average temperature fluctuating between 41.9°F (5.5°C) and 30.6°F (-0.8°C). In December, the average high-temperature drops from a cool 52.3°F (11.3°C) in November to a wintry 41.9°F (5.5°C). Weather in December »
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FAQ

What is the coldest month in Walnut Hill?

With an average high-temperature of 37.2°F (2.9°C) and an average low-temperature of 24.3°F (-4.3°C), January is the coldest month in Walnut Hill, Illinois.

How many days does it rain in Walnut Hill?

Throughout the year, there are 83.2 rainfall days, and 6.81" (173mm) of precipitation is accumulated.

When does it snow in Walnut Hill?

Months with snowfall in Walnut Hill, Illinois, are January through March, November and December.

What is the snowiest month in Walnut Hill?

The month with the most snowfall in Walnut Hill, Illinois, is January, when snow falls for 3.8 days and typically aggregates up to 0.28" (7mm) of snow.

How many days does it snow in Walnut Hill?

Throughout the year, there are 11.9 snowfall days, and 0.79" (20mm) of snow is accumulated.

What is the month with the least sunshine in Walnut Hill?

January has the least sunshine of the year in Walnut Hill, Illinois, with an average of 4.4h of sunshine.

What are the months with the lowest UV index in Walnut Hill?

January, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Walnut Hill.

When is Daylight Saving Time (DST) in Walnut Hill?

On Sunday, March 13. 2022, at 2:00 am, Daylight Saving Time starts in Walnut Hill, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 6. 2022, at 2:00 am, and the time zone reverts from CDT to CST.

What is the wettest month in Walnut Hill?

The months with the most rainfall are April and July, with an average 0.75" (19mm) of precipitation.

When it does not snow in Walnut Hill?

April through October are months without snowfall in Walnut Hill.

What are the most humid months in Walnut Hill?

The months with the highest humidity in Walnut Hill are May and July, with an average relative humidity of 80%.

What is the month with the highest UV index in Walnut Hill?

The months with the highest UV index in Walnut Hill are May through August, with an average maximum UV index of 6.

When are the longest days in Walnut Hill?

With an average of 14h and 49min of daylight, June has the longest days of the year in Walnut Hill.

What is the month with the most sunshine in Walnut Hill?

June and July, with an average of 10.3h of sunshine, are months with the most sunshine.

What is the warmest month in Walnut Hill?

With an average high-temperature of 84.9°F (29.4°C) and an average low-temperature of 67.6°F (19.8°C), July is the warmest month in Walnut Hill, Illinois.

What is the driest month in Walnut Hill?

The month with the least rainfall is September, when the rain falls for 6.3 days and typically collects 0.24" (6mm) of precipitation.

What is the least humid month in Walnut Hill?

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

What is the month with the shortest days in Walnut Hill?

The month with the shortest days is December, with an average of 9h and 32min of daylight.

Average temperature
Walnut Hill, IL

Average temperature - Walnut Hill, IL

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37.2°F).

The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).

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Average pressure
Walnut Hill, IL

Average pressure - Walnut Hill, IL

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed
Walnut Hill, IL

Average wind speed - Walnut Hill, IL

The windiest month (with the highest average wind speed) is February (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).

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Average humidity
Walnut Hill, IL

Average humidity - Walnut Hill, IL

The months with the highest relative humidity are May and July (80%).
The month with the lowest relative humidity is October (71%).

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Average rainfall
Walnut Hill, IL

Average rainfall - Walnut Hill, IL

The wettest months (with the highest rainfall) are April and July (0.75").
The driest month (with the least rainfall) is September (0.24").

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Average rainfall days
Walnut Hill, IL

Average rainfall days - Walnut Hill, IL

The month with the highest number of rainy days is May (10.1 days).
The month with the least rainy days is January (3.7 days).

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Average snowfall
Walnut Hill, IL

Average snowfall - Walnut Hill, IL

The month with the highest snowfall is January (0.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days
Walnut Hill, IL

Average snowfall days - Walnut Hill, IL

The month with the highest number of snowfall days is January (3.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight / Average sunshine
Walnut Hill, IL

Average daylight / Average sunshine - Walnut Hill, IL

The month with the longest days is June (Average daylight: 14h and 49min).
The month with the shortest days is December (Average daylight: 9h and 32min).

The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

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Average sunshine days
Walnut Hill, IL

Average sunshine days - Walnut Hill, IL

The months with the most sunshine days are January and December (24.5 days).
The month with the least sunshine days is May (16.8 days).

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Average UV index
Walnut Hill, IL

Average UV index - Walnut Hill, IL

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, November and December (UV index 2).

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Average visibility
Walnut Hill, IL

Average visibility - Walnut Hill, IL

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

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