Climate and monthly weather forecastEast Peoria, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, in East Peoria, Illinois, is a freezing cold winter month, with an average temperature varying between 30.7°F (-0.7°C) and 18.9°F (-7.3°C). January, having an average high-temperature of 30.7°F (-0.7°C) and an average low-temperature of 18.9°F (-7.3°C), is the coldest month. Weather in January »Weather in February
The last month of the winter, February, is a cold month in East Peoria, Illinois, with an average temperature fluctuating between 35.2°F (1.8°C) and 22.5°F (-5.3°C). February commences with an average high-temperature of an icy 35.2°F (1.8°C), showing little deviation from January's 30.7°F (-0.7°C). Weather in February »Weather in March
The first month of the spring, March, is a frosty month in East Peoria, Illinois, with an average temperature fluctuating between 34°F (1.1°C) and 49.1°F (9.5°C). March's onset witnesses a shift in the average high-temperature, moving from a cold 35.2°F (1.8°C) in February to a frosty 49.1°F (9.5°C). Weather in March »Weather in April
April in East Peoria, Illinois, is a comfortable spring month, with an average temperature ranging between max 60.8°F (16°C) and min 44.2°F (6.8°C). In April, the average high-temperature increases from a frosty 49.1°F (9.5°C) in March to an enjoyable 60.8°F (16°C). Weather in April »Weather in May
The last month of the spring, May, is a pleasant month in East Peoria, Illinois, with an average temperature fluctuating between 71.6°F (22°C) and 55°F (12.8°C). The beginning of May marks a shift in the average high-temperature, moving from April's comfortable 60.8°F (16°C) to a pleasant 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 fluctuating between 79.9°F (26.6°C) and 63.1°F (17.3°C). Entering June, East Peoria notices a subtle temperature elevation, with the average high-temperature advancing from May's agreeable 71.6°F (22°C) to a warm 79.9°F (26.6°C). Weather in June »Weather in July
July, like June, in East Peoria, Illinois, is another warm summer month, with an average temperature ranging between max 82°F (27.8°C) and min 65.3°F (18.5°C). July is the month when East Peoria sees the highest average temperatures, with a high of 82°F (27.8°C) and a low of 65.3°F (18.5°C). The heat index value for July is estimated at a tropical 89.6°F (32°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in East Peoria, Illinois, with an average temperature varying between 63.3°F (17.4°C) and 81.1°F (27.3°C). The shift into August reveals an average high-temperature of a still moderately hot 81.1°F (27.3°C), closely mirroring July's climate. Weather in August »Weather in September
September, the first month of the autumn in East Peoria, is still a warm month, with temperature in the range of an average high of 76.1°F (24.5°C) and an average low of 57.2°F (14°C). The beginning of September reveals an average high-temperature of a still warm 76.1°F (24.5°C), showing minimal deviation from the previous month. Weather in September »Weather in October
October, like September, in East Peoria, Illinois, is another enjoyable autumn month, with an average temperature varying between 46.4°F (8°C) and 62.1°F (16.7°C). In East Peoria, the average high-temperature in October drops from a moderately hot 76.1°F (24.5°C) in September to a refreshing 62.1°F (16.7°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 ranging between max 48.4°F (9.1°C) and min 34.7°F (1.5°C). November indicates a shift in the average high-temperature, from October's enjoyable 62.1°F (16.7°C) to a chilly 48.4°F (9.1°C). Weather in November »Weather in December
December, the first month of the winter in East Peoria, is also an icy month, with an average temperature fluctuating between 26.1°F (-3.3°C) and 36.5°F (2.5°C). The onset of December results in a decrease in the average high-temperature, receding from a frosty 48.4°F (9.1°C) in November to an icy 36.5°F (2.5°C). Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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 in January:
30.14"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.11"Hg
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 in January:
10.4mph - Average wind speed in February:
10.4mph - Average wind speed in March:
10.3mph - Average wind speed in April:
10.6mph - Average wind speed in May:
8.8mph - Average wind speed in June:
7.8mph
- Average wind speed in July:
6.6mph - Average wind speed in August:
6.5mph - Average wind speed in September:
7.6mph - Average wind speed in October:
9.3mph - Average wind speed in November:
10mph - Average wind speed in December:
9.8mph
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
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 in January:
0.75" - Average rainfall in February:
0.83" - Average rainfall in March:
1.34" - Average rainfall in April:
2.01" - Average rainfall in May:
2.64" - Average rainfall in June:
1.97"
- Average rainfall in July:
1.65" - Average rainfall in August:
1.3" - Average rainfall in September:
1.42" - Average rainfall in October:
1.46" - Average rainfall in November:
1.02" - Average rainfall in December:
0.87"
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 in January:
5.2 days - Average rainfall days in February:
4.6 days - Average rainfall days in March:
11.5 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
16.8 days - Average rainfall days in June:
15.5 days
- Average rainfall days in July:
14.9 days - Average rainfall days in August:
12.3 days - Average rainfall days in September:
10.5 days - Average rainfall days in October:
10.3 days - Average rainfall days in November:
8.1 days - Average rainfall days in December:
6.2 days
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
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 in January:
9 days - Average snowfall days in February:
6.8 days - Average snowfall days in March:
2.8 days - Average snowfall days in April:
0.5 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.1 days - Average snowfall days in November:
1.6 days - Average snowfall days in December:
5.9 days
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 in January:
9h and 42min - Average daylight in February:
10h and 42min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 18min - Average daylight in May:
14h and 30min - Average daylight in June:
15h and 0min
- Average daylight in July:
14h and 42min - Average daylight in August:
13h and 42min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 6min - Average daylight in November:
9h and 54min - Average daylight in December:
9h and 18min
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).
- Average sunshine in January:
4h and 0min - Average sunshine in February:
4h and 18min - Average sunshine in March:
6h and 36min - Average sunshine in April:
8h and 12min - Average sunshine in May:
9h and 6min - Average sunshine in June:
10h and 18min
- Average sunshine in July:
10h and 6min - Average sunshine in August:
10h and 0min - Average sunshine in September:
9h and 18min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 24min
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 in January:
18.5 days - Average sunshine days in February:
17.8 days - Average sunshine days in March:
16.7 days - Average sunshine days in April:
14.8 days - Average sunshine days in May:
11.3 days - Average sunshine days in June:
11.6 days
- Average sunshine days in July:
12.6 days - Average sunshine days in August:
16.4 days - Average sunshine days in September:
17.9 days - Average sunshine days in October:
19.4 days - Average sunshine days in November:
19.8 days - Average sunshine days in December:
19.5 days
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
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 cloud cover
East Peoria, IL
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 29).
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).





