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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, is another subzero cold winter month in Plainfield, Illinois, with an average temperature fluctuating between 29.3°F (-1.5°C) and 17.4°F (-8.1°C). The coldest period is January, when temperatures fluctuate between an average high of 29.3°F (-1.5°C) and a low of 17.4°F (-8.1°C). Weather in January »
Weather in February
February, the last month of the winter in Plainfield, is an icy month, with an average temperature fluctuating between 33.4°F (0.8°C) and 20.7°F (-6.3°C). With the arrival of February, Plainfield's average high-temperature registers at a cold 33.4°F (0.8°C), indicating a subtle variation from the previous month. Weather in February »
Weather in March
The first month of the spring, March, is a chilly month in Plainfield, Illinois, with temperature in the range of an average low of 31.8°F (-0.1°C) and an average high of 46.2°F (7.9°C). March's arrival brings a change in high-temperatures, moving from an icy 33.4°F (0.8°C) in February to a chilly 46.2°F (7.9°C). Weather in March »
Weather in April
April is a moderate spring month in Plainfield, Illinois, with an average temperature ranging between min 41.7°F (5.4°C) and max 58.1°F (14.5°C). The shift into April is accompanied by a temperature increase, with the average high-temperature rising from a chilly 46.2°F (7.9°C) in March to a refreshing 58.1°F (14.5°C). Weather in April »
Weather in May
May, the last month of the spring in Plainfield, is a pleasant month, with an average temperature varying between 52.3°F (11.3°C) and 70.3°F (21.3°C). May sees a temperature increase, moving from a refreshing 58.1°F (14.5°C) in April to a pleasant 70.3°F (21.3°C). Weather in May »
Weather in June
The first month of the summer, June, is a warm month in Plainfield, Illinois, with an average temperature ranging between min 61.3°F (16.3°C) and max 79.2°F (26.2°C). With the onset of June, Plainfield's weather sees a minor temperature rise, transitioning from a pleasant 70.3°F (21.3°C) in May to a warm 79.2°F (26.2°C). Weather in June »
Weather in July
July, the same as June, is another warm summer month in Plainfield, Illinois, with an average temperature ranging between min 64.8°F (18.2°C) and max 81.3°F (27.4°C). July is the warmest month, with an average high-temperature of 81.3°F (27.4°C) and an average low-temperature of 64.8°F (18.2°C). The average heat index in July is evaluated at a tropical 87.8°F (31°C). Weather in July »
Weather in August
August, the last month of the summer in Plainfield, is another warm month, with temperature in the range of an average low of 62.8°F (17.1°C) and an average high of 80.1°F (26.7°C). Plainfield marks the arrival of August with an average high-temperature of a still warm 80.1°F (26.7°C), hardly different from July's 81.3°F (27.4°C). Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Plainfield, Illinois, with an average temperature ranging between max 74.7°F (23.7°C) and min 56.7°F (13.7°C). A subtle shift in Plainfield's weather is observed as August turns into September, with the average high temperature reducing from 80.1°F (26.7°C) to a still warm 74.7°F (23.7°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Plainfield, Illinois, with temperature in the range of an average low of 45.5°F (7.5°C) and an average high of 61.3°F (16.3°C). October ushers in a slight temperature change, with average high-temperatures reducing from September's moderately hot 74.7°F (23.7°C) to a refreshing 61.3°F (16.3°C). Weather in October »
Weather in November
November, the last month of the autumn in Plainfield, is another chilly month, with an average temperature varying between 47.1°F (8.4°C) and 33.4°F (0.8°C). A subtle decrease in the average high-temperature marks November, falling from October's comfortable 61.3°F (16.3°C) to a chilly 47.1°F (8.4°C). Weather in November »
Weather in December
December, the first month of the winter in Plainfield, is also a wintry month, with temperature in the range of an average high of 35.1°F (1.7°C) and an average low of 25°F (-3.9°C). December's onset brings a reduction in the average high-temperature, from a frosty 47.1°F (8.4°C) in November to a wintry 35.1°F (1.7°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
What is the coldest month in Plainfield?
In Plainfield, January registers the lowest temperatures, averaging 29.3°F (-1.5°C) at the peak and 17.4°F (-8.1°C) at the lowest.
How many days does it rain in Plainfield?
Throughout the year, there are 153.6 rainfall days, and 32.72" (831mm) of precipitation is accumulated.
When does it snow in Plainfield?
Months with snowfall in Plainfield, Illinois, are January through April, November and December.
When does it snow the most in Plainfield?
January is the month with the most snowfall in Plainfield, Illinois. Snow falls for 11.9 days and accumulates 4.33" (110mm) of snow.
How much does it snow in Plainfield?
Throughout the year, there are 38.2 snowfall days, and 14.61" (371mm) of snow is accumulated.
What is the month with the least sunshine in Plainfield?
January has the least sunshine of the year, with an average of 3.7h of sunshine.
What is the month with the lowest UV index in Plainfield?
The months with the lowest UV index are January and December, with an average maximum UV index of 1.
What is the most humid month in Plainfield?
With an average relative humidity of 83%, February is the most humid month in Plainfield.
What is the driest month in Plainfield?
The month with the least rainfall in Plainfield, Illinois, is February, when the rain falls for 5.7 days and typically collects 1.61" (41mm) of precipitation.
When is Daylight Saving Time (DST) in Plainfield?
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 rainiest month in Plainfield?
The month with the most rainfall in Plainfield, Illinois, is May, when the rain falls for 17.8 days and typically aggregates up to 4.41" (112mm) of precipitation.
When it does not snow in Plainfield?
In Plainfield, snow does not fall in May through October.
When are the longest days in Plainfield?
With an average of 15h and 6min of daylight, June has the longest days of the year in Plainfield, Illinois.
When is the highest UV index in Plainfield?
The months with the highest UV index are June and July, with an average maximum UV index of 6.
What are the warmest months in Plainfield?
July is the warmest month in Plainfield, exhibiting average temperatures of 81.3°F (27.4°C) at the peak and 64.8°F (18.2°C) at the base.
What month has the most sunshine in Plainfield?
The month with the most sunshine in Plainfield is August, with an average of 9.7h of sunshine.
What is the least humid month in Plainfield?
October is the least humid month in Plainfield, with an average relative humidity of 73%.
What is the month with the shortest days in Plainfield?
The month with the shortest days in Plainfield, Illinois, is December, with an average of 9h and 12min of daylight.
Average temperature
Plainfield, IL
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (29.3°F).
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure
Plainfield, IL
- Average pressure in January:
30.12"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.92"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.98"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
30.01"Hg - Average pressure in November:
30.1"Hg - Average pressure in December:
30.1"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Plainfield, IL
- Average wind speed in January:
9.5mph - Average wind speed in February:
9.4mph - Average wind speed in March:
9.3mph - Average wind speed in April:
9.7mph - Average wind speed in May:
8.3mph - Average wind speed in June:
7.2mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
5.9mph - Average wind speed in September:
6.9mph - Average wind speed in October:
8.5mph - Average wind speed in November:
9.1mph - Average wind speed in December:
8.9mph
The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity
Plainfield, IL
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall
Plainfield, IL
- Average rainfall in January:
1.85" - Average rainfall in February:
1.61" - Average rainfall in March:
2.09" - Average rainfall in April:
3.62" - Average rainfall in May:
4.41" - Average rainfall in June:
4.02"
- Average rainfall in July:
3.46" - Average rainfall in August:
2.83" - Average rainfall in September:
2.48" - Average rainfall in October:
2.95" - Average rainfall in November:
1.69" - Average rainfall in December:
1.69"
The wettest month (with the highest rainfall) is May (4.41").
The driest month (with the least rainfall) is February (1.61").
Average rainfall days
Plainfield, IL
- Average rainfall days in January:
6.8 days - Average rainfall days in February:
5.7 days - Average rainfall days in March:
12.6 days - Average rainfall days in April:
16.3 days - Average rainfall days in May:
17.8 days - Average rainfall days in June:
17.8 days
- Average rainfall days in July:
17.9 days - Average rainfall days in August:
15.8 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
12.9 days - Average rainfall days in November:
9.4 days - Average rainfall days in December:
8.1 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is February (5.7 days).
Average snowfall
Plainfield, IL
The month with the highest snowfall is January (4.33").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Plainfield, IL
- Average snowfall days in January:
11.9 days - Average snowfall days in February:
9.5 days - Average snowfall days in March:
5 days - Average snowfall days in April:
1 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:
0.2 days - Average snowfall days in November:
2.6 days - Average snowfall days in December:
8 days
The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Plainfield, IL
- Average daylight in January:
9h and 4min - Average daylight in February:
10h and 4min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 2min - Average daylight in May:
14h and 4min - Average daylight in June:
15h and 1min
- Average daylight in July:
14h and 5min - Average daylight in August:
13h and 5min - Average daylight in September:
12h and 3min - Average daylight in October:
11h and 1min - Average daylight in November:
9h and 5min - Average daylight in December:
9h and 1min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in January:
3h and 4min - Average sunshine in February:
3h and 5min - Average sunshine in March:
6h and 1min - Average sunshine in April:
7h and 3min - Average sunshine in May:
8h and 3min - Average sunshine in June:
9h and 3min
- Average sunshine in July:
9h and 4min - Average sunshine in August:
9h and 4min - Average sunshine in September:
8h and 3min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 1min - Average sunshine in December:
4h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days
Plainfield, IL
- Average sunshine days in January:
14.4 days - Average sunshine days in February:
13.8 days - Average sunshine days in March:
14.6 days - Average sunshine days in April:
11.1 days - Average sunshine days in May:
11.6 days - Average sunshine days in June:
10.4 days
- Average sunshine days in July:
10.8 days - Average sunshine days in August:
11.8 days - Average sunshine days in September:
15 days - Average sunshine days in October:
16.5 days - Average sunshine days in November:
18.1 days - Average sunshine days in December:
15.9 days
The month with the most sunshine days is November (18.1 days).
The month with the least sunshine days is June (10.4 days).
Average UV index
Plainfield, IL
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover
Plainfield, IL
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are August and September (Cloud cover 34).
Average visibility
Plainfield, IL
The months with the highest visibility are March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, February, July and August (5mi).
Plainfield, Illinois, USA
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