Climate and monthly weather forecastWest Peoria, IL
Climate and monthly weather forecast
Weather in January
January, the same as December, in West Peoria, Illinois, is another subzero cold winter month, with temperature in the range of an average low of 18.9°F (-7.3°C) and an average high of 30.7°F (-0.7°C). West Peoria's temperature records reveal January as the coldest month, marked by average highs of 30.7°F (-0.7°C) and lows of 18.9°F (-7.3°C). Weather in January »Weather in February
The last month of the winter, February, is a cold month in West Peoria, Illinois, with an average temperature fluctuating between 22.5°F (-5.3°C) and 35.2°F (1.8°C). February's onset records a minor alteration in the average high-temperature to an icy 35.2°F (1.8°C) 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 West Peoria, Illinois, with an average temperature fluctuating between 34°F (1.1°C) and 49.1°F (9.5°C). March's arrival coincides with a temperature rise, moving from February's cold 35.2°F (1.8°C) to a chilly 49.1°F (9.5°C). Weather in March »Weather in April
April in West Peoria, Illinois, is an enjoyable spring month, with an average temperature fluctuating between 44.2°F (6.8°C) and 60.8°F (16°C). In West Peoria, the average high-temperature in April increases from a frosty 49.1°F (9.5°C) in March to a comfortable 60.8°F (16°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in West Peoria, Illinois, with temperature in the range of an average high of 71.6°F (22°C) and an average low of 55°F (12.8°C). As April transitions into May, West Peoria sees a rise in the average high-temperature, moving from an enjoyable 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 West Peoria, is a moderately hot month, with an average temperature varying between 79.9°F (26.6°C) and 63.1°F (17.3°C). With the beginning of June, West Peoria's average high-temperature sees a minor increase, transitioning from an agreeable 71.6°F (22°C) in May to a warm 79.9°F (26.6°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in West Peoria, Illinois, with temperature in the range of an average high of 82°F (27.8°C) and an average low of 65.3°F (18.5°C). The warmest month is July, with an average high-temperature of 82°F (27.8°C) and an average low-temperature of 65.3°F (18.5°C). July's average heat index is calculated to be a hot 89.6°F (32°C). Weather in July »Weather in August
August, the last month of the summer in West Peoria, is another warm month, with an average temperature varying between 81.1°F (27.3°C) and 63.3°F (17.4°C). As West Peoria steps into August, the average high-temperature holds at a still warm 81.1°F (27.3°C), hinting at a minor fluctuation from the prior month. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in West Peoria, Illinois, with an average temperature varying between 57.2°F (14°C) and 76.1°F (24.5°C). The arrival of September sees a recorded average high-temperature of a still warm 76.1°F (24.5°C), showing little divergence from the previous month's conditions. Weather in September »Weather in October
October, like September, in West Peoria, Illinois, is another refreshing autumn month, with an average temperature ranging between max 62.1°F (16.7°C) and min 46.4°F (8°C). With October's onset, the weather shows a temperature decrease, transitioning 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 another chilly month in West Peoria, Illinois, with an average temperature ranging between max 48.4°F (9.1°C) and min 34.7°F (1.5°C). A shift in the average high-temperature occurs in November, reducing from a refreshing 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 West Peoria, is also an icy month, with an average temperature fluctuating between 36.5°F (2.5°C) and 26.1°F (-3.3°C). December's onset brings a slight change in high-temperatures, falling from a chilly 48.4°F (9.1°C) in November to a cold 36.5°F (2.5°C). Weather in December »Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
West Peoria's coldest month, January, generally records average temperatures ranging from a high of 30.7°F (-0.7°C) to a low of 18.9°F (-7.3°C).
The month with the least rainfall is January, when the rain falls for 5.2 days and typically collects 0.75" (19mm) of precipitation.
In West Peoria, Illinois, during the entire year, the rain falls for 129.2 days and collects up to 17.24" (438mm) of precipitation.
January through April, October through December are months with snowfall in West Peoria, Illinois.
January is the month with the most snowfall. Snow falls for 9 days and accumulates 2.36" (60mm) of snow.
In West Peoria, during the entire year, snow falls for 26.7 days and aggregates up to 7.09" (180mm) of snow.
The month with the least sunshine in West Peoria, Illinois, is January, with an average of 4h of sunshine.
The months with the lowest UV index in West Peoria are January, February, November and December, with an average maximum UV index of 2.
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.
May is the month with the most rainfall in West Peoria, Illinois. Rain falls for 16.8 days and accumulates 2.64" (67mm) of precipitation.
May through September are months without snowfall in West Peoria.
The month with the longest days in West Peoria is June, with an average of 15h and 0min of daylight.
June has the most sunshine of the year in West Peoria, with an average of 10.3h of sunshine.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
July is the month when West Peoria, Illinois, sees the average highest temperatures, with a high of 82°F (27.8°C) and a low of 65.3°F (18.5°C).
With an average relative humidity of 84%, July is the most humid month in West Peoria.
October is the least humid month in West Peoria, with an average relative humidity of 71%.
The month with the shortest days in West Peoria is December, with an average of 9h and 18min of daylight.
Average temperature
West 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
West 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
West 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
West Peoria, IL
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (71%).
Average rainfall
West 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
West 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
West 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
West 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
West 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
West 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
West 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
West 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
West 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).
