Climate and monthly weather forecast
East Peoria, IL

Share

Weather in January

January, like December, is another subzero cold winter month in East Peoria, Illinois, with an average temperature fluctuating between 18.9°F (-7.3°C) and 30.7°F (-0.7°C). The coldest period is January, when temperatures fluctuate between an average high of 30.7°F (-0.7°C) and a low of 18.9°F (-7.3°C). Weather in January »

Weather in February

February, the last month of the winter in East Peoria, is a wintry month, with an average temperature ranging between max 35.2°F (1.8°C) and min 22.5°F (-5.3°C). The ushering in of February brings an average high-temperature of an icy 35.2°F (1.8°C), closely mirroring the 30.7°F (-0.7°C) of January. Weather in February »

Weather in March

The first month of the spring, March, is a chilly month in East Peoria, Illinois, with an average temperature fluctuating between 49.1°F (9.5°C) and 34°F (1.1°C). The start of March signals an increase in the average high-temperature, moving from a cold 35.2°F (1.8°C) in February to a chilly 49.1°F (9.5°C). Weather in March »

Weather in April

April is a comfortable spring month in East Peoria, Illinois, with an average temperature varying between 44.2°F (6.8°C) and 60.8°F (16°C). As East Peoria transitions into April, the average high-temperature shows a change, moving from a chilly 49.1°F (9.5°C) in March to a comfortable 60.8°F (16°C). Weather in April »

Weather in May

May, the last month of the spring in East Peoria, is a pleasant month, with an average temperature ranging between max 71.6°F (22°C) and min 55°F (12.8°C). Entering May, East Peoria sees a temperature rise, with the average high-temperature advancing from April's refreshing 60.8°F (16°C) to an agreeable 71.6°F (22°C). Weather in May »

Weather in June

June, the first month of the summer in East Peoria, is a warm month, with an average temperature varying between 63.1°F (17.3°C) and 79.9°F (26.6°C). The onset of June introduces a subtle rise in the average high-temperature, nudging from a pleasant 71.6°F (22°C) in May to a warm 79.9°F (26.6°C). Weather in June »

Weather in July

July, like June, in East Peoria, Illinois, is a moderately hot summer month, with an average temperature fluctuating between 65.3°F (18.5°C) and 82°F (27.8°C). With an average high-temperature of 82°F (27.8°C) and an average low-temperature of 65.3°F (18.5°C), July is the warmest month. The heat index in July is calculated to be a tropical 89.6°F (32°C). Weather in July »

Weather in August

August, the last month of the summer in East Peoria, is also a moderately hot month, with an average temperature varying between 63.3°F (17.4°C) and 81.1°F (27.3°C). East Peoria's August average high-temperature settles at a still warm 81.1°F (27.3°C), showing a near match with the preceding month. Weather in August »

Weather in September

The first month of the autumn, September, is still a warm month in East Peoria, Illinois, with an average temperature ranging between max 76.1°F (24.5°C) and min 57.2°F (14°C). Transitioning into September, East Peoria records an average high-temperature of a still moderately hot 76.1°F (24.5°C), almost identical to August's 81.1°F (27.3°C). Weather in September »

Weather in October

October, the same as September, is another enjoyable autumn month in East Peoria, Illinois, with an average temperature varying between 62.1°F (16.7°C) and 46.4°F (8°C). The shift from September to October corresponds with a decrease in the average high-temperature, down to an enjoyable 62.1°F (16.7°C) from a moderately hot 76.1°F (24.5°C). Weather in October »

Weather in November

The last month of the autumn, November, is also a frosty month in East Peoria, Illinois, with an average temperature fluctuating between 48.4°F (9.1°C) and 34.7°F (1.5°C). The onset of November comes with a shift in the average high-temperature, falling from a comfortable 62.1°F (16.7°C) in October to a frosty 48.4°F (9.1°C). Weather in November »

Weather in December

December, the first month of the winter in East Peoria, is also a wintry month, with an average temperature varying between 26.1°F (-3.3°C) and 36.5°F (2.5°C). The move into December indicates a reduction in the average high-temperature, down from November's chilly 48.4°F (9.1°C) to a cold 36.5°F (2.5°C). Weather in December »

Frequently asked questions

What month is the coldest?

January, noted for its average high-temperature of 30.7°F (-0.7°C) and an average low-temperature of 18.9°F (-7.3°C), is considered the coldest month.

What is the driest month?

The month with the least rainfall is January, when the rain falls for 5.2 days and typically collects 0.75" (19mm) of precipitation.

How many days does it rain?

Throughout the year, there are 129.2 rainfall days, and 17.24" (438mm) of precipitation is accumulated.

When does it snow?

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

When does it snow the most?

The month with the most snowfall is January, when snow falls for 9 days and typically aggregates up to 2.36" (60mm) of snow.

How much does it snow in East Peoria?

Throughout the year, there are 26.7 snowfall days, and 7.09" (180mm) of snow is accumulated.

What is the month with the least sunshine?

The month with the least sunshine is January, with an average of 4h of sunshine.

What are the months with the lowest UV index?

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)?

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 16.8 days and typically aggregates up to 2.64" (67mm) of precipitation.

When it does not snow?

In East Peoria, snow does not fall in May through September.

When are the longest days?

June has the longest days of the year, with an average of 15h and 0min of daylight.

What month has the most sunshine?

With an average of 10.3h of sunshine, June has the most sunshine of the year.

What is the month with the highest UV index?

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

What time of the year is the hottest?

July, recording an average high temperature of 82°F (27.8°C) and a low temperature of 65.3°F (18.5°C), is East Peoria's warmest month.

What is the most humid month?

The most humid month is July, with an average relative humidity of 84%.

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?

With an average of 9h and 18min of daylight, December has the shortest days of the year in East Peoria.

Average temperature
East Peoria, IL

Average temperature - East Peoria, IL

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (30.7°F).

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure
East Peoria, IL

Average pressure - East Peoria, IL

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed
East Peoria, IL

Average wind speed - East Peoria, IL

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity
East Peoria, IL

Average humidity - East Peoria, IL

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).

Average rainfall
East Peoria, IL

Average rainfall - East Peoria, IL

The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is January (0.75").

Average rainfall days
East Peoria, IL

Average rainfall days - East Peoria, IL

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (4.6 days).

Average snowfall
East Peoria, IL

Average snowfall - East Peoria, IL

The month with the highest snowfall is January (2.36").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days
East Peoria, IL

Average snowfall days - East Peoria, IL

The month with the highest number of snowfall days is January (9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight / Average sunshine
East Peoria, IL

Average daylight / Average sunshine - East Peoria, 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: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days
East Peoria, IL

Average sunshine days - East Peoria, IL

The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (11.3 days).

Average UV index
East Peoria, IL

Average UV index - East Peoria, IL

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

Average visibility
East Peoria, IL

Average visibility - East Peoria, 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).

East Peoria, Illinois, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location