Climate and monthly weather forecast
Waltonville, IL

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Weather in January

January, like December, in Waltonville, Illinois, is an icy winter month, with an average temperature ranging between max 38.8°F (3.8°C) and min 25.7°F (-3.5°C). The coldest time of the year is January, with temperatures averaging a high of 38.8°F (3.8°C) and a low of 25.7°F (-3.5°C). Weather in January »

Weather in February

The last month of the winter, February, is a chilly month in Waltonville, Illinois, with an average temperature ranging between max 43.5°F (6.4°C) and min 29.1°F (-1.6°C). With the arrival of February, Waltonville's average high-temperature registers at a chilly 43.5°F (6.4°C), indicating a subtle variation from the previous month. Weather in February »

Weather in March

The first month of the spring, March, is a cool month in Waltonville, Illinois, with an average temperature ranging between max 55°F (12.8°C) and min 38.8°F (3.8°C). The shift from February to March sees an increase in the average high-temperature, transitioning from a frosty 43.5°F (6.4°C) to a cool 55°F (12.8°C). Weather in March »

Weather in April

April in Waltonville, Illinois, is an enjoyable spring month, with an average temperature varying between 65.8°F (18.8°C) and 48.4°F (9.1°C). April's arrival sees a rise in the average high-temperature, jumping from March's fresh 55°F (12.8°C) to a refreshing 65.8°F (18.8°C). Weather in April »

Weather in May

May, the last month of the spring in Waltonville, is a warm month, with an average temperature fluctuating between 75.2°F (24°C) and 58.1°F (14.5°C). With the onset of May, Waltonville's average high-temperature experiences a rise, moving from April's enjoyable 65.8°F (18.8°C) to a warm 75.2°F (24°C). Weather in May »

Weather in June

The first month of the summer, June, is also a moderately hot month in Waltonville, Illinois, with an average temperature fluctuating between 66.6°F (19.2°C) and 84.4°F (29.1°C). June's onset brings a temperature rise, moving from a warm 75.2°F (24°C) in May to a still moderately hot 84.4°F (29.1°C). Weather in June »

Weather in July

July is a tropical summer month in Waltonville, Illinois, with an average temperature fluctuating between 87.1°F (30.6°C) and 68.5°F (20.3°C). July, marked by an average high-temperature of 87.1°F (30.6°C) and a low-temperature of 68.5°F (20.3°C), is the warmest month. The heat index value for July is evaluated at a sweltering 102.2°F (39°C). Weather in July »

Weather in August

The last month of the summer, August, is another warm month in Waltonville, Illinois, with temperature in the range of an average low of 66°F (18.9°C) and an average high of 85.3°F (29.6°C). Transitioning into August, Waltonville experiences an average high-temperature of a moderately hot 85.3°F (29.6°C), marking a minor shift from the preceding month. Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Waltonville, Illinois, with an average temperature fluctuating between 60.3°F (15.7°C) and 79.7°F (26.5°C). September brings a slight decrease in the average high-temperature, shifting from 85.3°F (29.6°C) in August to a still moderately hot 79.7°F (26.5°C). Weather in September »

Weather in October

October, like September, in Waltonville, Illinois, is another enjoyable autumn month, with an average temperature varying between 67.3°F (19.6°C) and 49.3°F (9.6°C). October shows a mild decline in the average high-temperature, falling from September's warm 79.7°F (26.5°C) to an enjoyable 67.3°F (19.6°C). Weather in October »

Weather in November

November, the last month of the autumn in Waltonville, is another cool month, with an average temperature varying between 53.2°F (11.8°C) and 38.3°F (3.5°C). The average high-temperature drops in November, from October's enjoyable 67.3°F (19.6°C) to a fresh 53.2°F (11.8°C). Weather in November »

Weather in December

The first month of the winter, December, is still a chilly month in Waltonville, Illinois, with an average temperature varying between 43.5°F (6.4°C) and 31.3°F (-0.4°C). The shift from November to December involves a decrease in the average high-temperature, dropping from a fresh 53.2°F (11.8°C) to a chilly 43.5°F (6.4°C). Weather in December »
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What part of the year is the coldest in Waltonville?

In Waltonville, January records the average lowest temperatures, peaking at 38.8°F (3.8°C) and reaching a low of 25.7°F (-3.5°C).

How much does it rain in Waltonville?

Throughout the year, in Waltonville, there are 122.7 rainfall days, and 18.03" (458mm) of precipitation is accumulated.

When does it snow in Waltonville?

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

When does it snow the most in Waltonville?

The month with the most snowfall in Waltonville is January, when snow falls for 4.5 days and typically aggregates up to 0.71" (18mm) of snow.

How much does it snow in Waltonville?

Throughout the year, in Waltonville, Illinois, there are 14.5 snowfall days, and 2.64" (67mm) of snow is accumulated.

What is the month with the least sunshine in Waltonville?

January has the least sunshine of the year, with an average of 4.5h of sunshine.

What are the months with the lowest UV index in Waltonville?

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

When is Daylight Saving Time (DST) in Waltonville?

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

April is the month with the most rainfall in Waltonville. Rain falls for 13.1 days and accumulates 2.56" (65mm) of precipitation.

What is the most humid month in Waltonville?

With an average relative humidity of 79%, May is the most humid month.

When it does not snow in Waltonville?

In Waltonville, snow does not fall in May through September.

What is the month with the highest UV index in Waltonville?

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

When are the longest days in Waltonville?

With an average of 14h and 48min of daylight, June has the longest days of the year in Waltonville, Illinois.

What time of the year is the hottest in Waltonville?

July is Waltonville's warmest month, registering average high temperatures of 87.1°F (30.6°C) and lows of 68.5°F (20.3°C).

What month has the most sunshine in Waltonville?

July has the most sunshine of the year, with an average of 10.5h of sunshine.

What is the driest month in Waltonville?

The month with the least rainfall in Waltonville, Illinois, is September, when the rain falls for 9 days and typically collects 0.98" (25mm) of precipitation.

What is the least humid month in Waltonville?

With an average relative humidity of 70%, October is the least humid month.

What is the month with the shortest days in Waltonville?

December has the shortest days of the year in Waltonville, Illinois, with an average of 9h and 36min of daylight.

Average temperature
Waltonville, IL

Average temperature - Waltonville, IL

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (38.8°F).

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average pressure
Waltonville, IL

Average pressure - Waltonville, 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).

Average wind speed
Waltonville, IL

Average wind speed - Waltonville, IL

The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).

Average humidity
Waltonville, IL

Average humidity - Waltonville, IL

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall
Waltonville, IL

Average rainfall - Waltonville, IL

The wettest month (with the highest rainfall) is April (2.56").
The driest month (with the least rainfall) is September (0.98").

Average rainfall days
Waltonville, IL

Average rainfall days - Waltonville, IL

The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is January (7.3 days).

Average snowfall
Waltonville, IL

Average snowfall - Waltonville, IL

The month with the highest snowfall is January (0.71").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
Waltonville, IL

Average snowfall days - Waltonville, IL

The month with the highest number of snowfall days is January (4.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
Waltonville, IL

Average daylight / Average sunshine - Waltonville, IL

The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days
Waltonville, IL

Average sunshine days - Waltonville, IL

The month with the most sunshine days is October (21.3 days).
The month with the least sunshine days is May (13.8 days).

Average UV index
Waltonville, IL

Average UV index - Waltonville, 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, February, November and December (UV index 2).

Average cloud cover
Waltonville, IL

Average cloud cover - Waltonville, IL

The months with the most cloud cover are January and February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).

Average visibility
Waltonville, IL

Average visibility - Waltonville, 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).

Waltonville, Illinois, USA

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