Climate and monthly weather forecast
Edwardsville, IL

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Weather in January

January, like December, in Edwardsville, Illinois, is a wintry winter month, with temperature in the range of an average low of 23.4°F (-4.8°C) and an average high of 36.1°F (2.3°C). The coldest period tends to be January, when average temperatures fluctuate between a high of 36.1°F (2.3°C) and a low of 23.4°F (-4.8°C). Weather in January »

Weather in February

February, the last month of the winter in Edwardsville, is also an icy month, with an average temperature fluctuating between 27.1°F (-2.7°C) and 41°F (5°C). February begins with an average high-temperature of a still icy 41°F (5°C), reflecting close similarity to the preceding month. Weather in February »

Weather in March

March, the first month of the spring in Edwardsville, is a fresh month, with an average temperature ranging between min 37.2°F (2.9°C) and max 53.4°F (11.9°C). As Edwardsville transitions into March, the average high-temperature is observed to rise from a wintry 41°F (5°C) in February to a fresh 53.4°F (11.9°C). Weather in March »

Weather in April

April is a refreshing spring month in Edwardsville, Illinois, with an average temperature fluctuating between 64.4°F (18°C) and 46.9°F (8.3°C). April's arrival is marked by an increase in the average high-temperature, moving from a cool 53.4°F (11.9°C) in March to an enjoyable 64.4°F (18°C). Weather in April »

Weather in May

May, the last month of the spring in Edwardsville, is a moderately hot month, with an average temperature ranging between max 74.1°F (23.4°C) and min 57°F (13.9°C). With the arrival of May, the average high-temperature transitions from an enjoyable 64.4°F (18°C) in April to a warm 74.1°F (23.4°C). Weather in May »

Weather in June

The first month of the summer, June, is also a moderately hot month in Edwardsville, Illinois, with an average temperature varying between 66.2°F (19°C) and 83.1°F (28.4°C). A rise in the average high-temperature is observed during June, moving from 74.1°F (23.4°C) in May to a still warm 83.1°F (28.4°C). Weather in June »

Weather in July

July, like June, in Edwardsville, Illinois, is a moderately hot summer month, with temperature in the range of an average high of 85.3°F (29.6°C) and an average low of 67.6°F (19.8°C). The average temperatures reach their apex in July, averaging 85.3°F (29.6°C) at the high end and 67.6°F (19.8°C) at the low end. For most parts of July, the heat index is estimated at a very hot 96.8°F (36°C). Weather in July »

Weather in August

The last month of the summer, August, is also a moderately hot month in Edwardsville, Illinois, with an average temperature fluctuating between 84°F (28.9°C) and 65.7°F (18.7°C). August's arrival brings an average high-temperature of a still warm 84°F (28.9°C), demonstrating subtle variation from the preceding month. Weather in August »

Weather in September

The first month of the autumn, September, is also a moderately hot month in Edwardsville, Illinois, with an average temperature ranging between min 59.4°F (15.2°C) and max 78.6°F (25.9°C). A modest decline in the average high-temperature is seen during September, decreasing from a warm 84°F (28.9°C) in August to a still moderately hot 78.6°F (25.9°C). Weather in September »

Weather in October

October, like September, in Edwardsville, Illinois, is another comfortable autumn month, with temperature in the range of an average low of 48.7°F (9.3°C) and an average high of 65.3°F (18.5°C). Arrival of October comes with a reduction in the average high-temperature, falling from a warm 78.6°F (25.9°C) in September to a refreshing 65.3°F (18.5°C). Weather in October »

Weather in November

November, the last month of the autumn in Edwardsville, is another cool month, with an average temperature ranging between min 37°F (2.8°C) and max 52.2°F (11.2°C). As Edwardsville enters November, the average high-temperature decreases from the a refreshing 65.3°F (18.5°C) of October to a cool 52.2°F (11.2°C). Weather in November »

Weather in December

The first month of the winter, December, is still a cold month in Edwardsville, Illinois, with an average temperature varying between 29.8°F (-1.2°C) and 41.4°F (5.2°C). Edwardsville observes a minor decrease in the average high-temperature with the arrival of December, falling from November's fresh 52.2°F (11.2°C) to a cold 41.4°F (5.2°C). Weather in December »
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Frequently asked questions

What month is the coldest in Edwardsville?

In Edwardsville, January registers the lowest temperatures, averaging 36.1°F (2.3°C) at the peak and 23.4°F (-4.8°C) at the lowest.

How many days does it rain in Edwardsville?

Throughout the year, in Edwardsville, Illinois, there are 138 rainfall days, and 23.9" (607mm) of precipitation is accumulated.

When does it snow in Edwardsville?

Months with snowfall are January through April, November and December.

How much does it snow in Edwardsville?

Throughout the year, in Edwardsville, there are 18.6 snowfall days, and 4.53" (115mm) of snow is accumulated.

What are the months with the least sunshine in Edwardsville?

January and February, with an average of 4.5h of sunshine, are months with the least sunshine in Edwardsville, Illinois.

When is the lowest UV index in Edwardsville?

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

What is the driest month in Edwardsville?

February is the month with the least rainfall in Edwardsville, Illinois. Rain falls for 6.9 days and accumulates 1.14" (29mm) of precipitation.

When does it snow the most in Edwardsville?

The month with the most snowfall is February, when snow falls for 5.4 days and typically aggregates up to 1.61" (41mm) of snow.

When is Daylight Saving Time (DST) in Edwardsville?

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

May is the month with the most rainfall in Edwardsville, Illinois. Rain falls for 16.6 days and accumulates 3.07" (78mm) of precipitation.

When it does not snow in Edwardsville?

May through October are months without snowfall in Edwardsville, Illinois.

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

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

When are the longest days in Edwardsville?

The month with the longest days in Edwardsville is June, with an average of 14h and 48min of daylight.

What month has the most sunshine in Edwardsville?

With an average of 10.4h of sunshine, June has the most sunshine of the year.

What are the warmest months in Edwardsville?

July is the month when Edwardsville sees the average highest temperatures, with a high of 85.3°F (29.6°C) and a low of 67.6°F (19.8°C).

What is the most humid month in Edwardsville?

July is the most humid month in Edwardsville, with an average relative humidity of 80%.

What is the least humid month in Edwardsville?

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

What is the month with the shortest days in Edwardsville?

The month with the shortest days in Edwardsville is December, with an average of 9h and 30min of daylight.

Average temperature
Edwardsville, IL

Average temperature - Edwardsville, IL

The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (36.1°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 (23.4°F).

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Average pressure
Edwardsville, IL

Average pressure - Edwardsville, IL

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed
Edwardsville, IL

Average wind speed - Edwardsville, IL

The windiest months (with the highest average wind speed) are January and February (9.6mph).
The calmest month (with the lowest average wind speed) is July (5.7mph).

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Average rainfall
Edwardsville, IL

Average rainfall - Edwardsville, IL

The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is February (1.14").

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Average rainfall days
Edwardsville, IL

Average rainfall days - Edwardsville, IL

The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is January (5.6 days).

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Average snowfall
Edwardsville, IL

Average snowfall - Edwardsville, IL

The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days
Edwardsville, IL

Average snowfall days - Edwardsville, IL

The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight / Average sunshine
Edwardsville, IL

Average daylight / Average sunshine - Edwardsville, 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 30min).

The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 30min).

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Average sunshine days
Edwardsville, IL

Average sunshine days - Edwardsville, IL

The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is July (12.3 days).

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Average UV index
Edwardsville, IL

Average UV index - Edwardsville, 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).

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Average visibility
Edwardsville, IL

Average visibility - Edwardsville, 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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Edwardsville, Illinois, USA

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