Climate and monthly weather forecastPlainville, IL
Climate and monthly weather forecast
Weather in January
January, like December, in Plainville, Illinois, is an icy winter month, with temperature in the range of an average low of 21.6°F (-5.8°C) and an average high of 34°F (1.1°C). January is the coldest month, exhibiting average temperatures of 34°F (1.1°C) at the peak and 21.6°F (-5.8°C) at the base. Weather in January »Weather in February
The last month of the winter, February, is another cold month in Plainville, Illinois, with an average temperature varying between 38.8°F (3.8°C) and 24.8°F (-4°C). The advent of February reveals an average high-temperature of a still icy 38.8°F (3.8°C), showing minimal difference from the prior month. Weather in February »Weather in March
March, the first month of the spring in Plainville, is a cool month, with an average temperature varying between 35.8°F (2.1°C) and 51.6°F (10.9°C). March brings an increase in the average high-temperature, progressing from a cold 38.8°F (3.8°C) in February to a fresh 51.6°F (10.9°C). Weather in March »Weather in April
April in Plainville, Illinois, is a comfortable spring month, with an average temperature varying between 45.5°F (7.5°C) and 63.5°F (17.5°C). Plainville's weather shows a temperature rise with the arrival of April, moving from a cool 51.6°F (10.9°C) in March to a refreshing 63.5°F (17.5°C). Weather in April »Weather in May
May, the last month of the spring in Plainville, is an agreeable month, with an average temperature fluctuating between 55.8°F (13.2°C) and 72.7°F (22.6°C). May sees a rise in the average high-temperature, climbing from an enjoyable 63.5°F (17.5°C) in April to an agreeable 72.7°F (22.6°C). Weather in May »Weather in June
June, the first month of the summer in Plainville, is a moderately hot month, with temperature in the range of an average low of 64.4°F (18°C) and an average high of 82°F (27.8°C). With the transition into June, Plainville experiences an increase in average high-temperatures, moving up from a pleasant 72.7°F (22.6°C) in May to a moderately hot 82°F (27.8°C). Weather in June »Weather in July
July, like June, in Plainville, Illinois, is another warm summer month, with an average temperature varying between 84.7°F (29.3°C) and 67.1°F (19.5°C). July, with average temperatures reaching a high of 84.7°F (29.3°C) and a low of 67.1°F (19.5°C), is the warmest month. July's heat index is evaluated at a fiery hot 96.8°F (36°C). Weather in July »Weather in August
The last month of the summer, August, is another warm month in Plainville, Illinois, with an average temperature fluctuating between 64.9°F (18.3°C) and 83.8°F (28.8°C). With the onset of August, the average high-temperature registers at a still warm 83.8°F (28.8°C), subtly different from July's 84.7°F (29.3°C). Weather in August »Weather in September
September, the first month of the autumn in Plainville, is also a moderately hot month, with an average temperature fluctuating between 58.3°F (14.6°C) and 78.4°F (25.8°C). The advent of September brings a subtle shift in temperature, with the average high moving from 83.8°F (28.8°C) in August to a still warm 78.4°F (25.8°C). Weather in September »Weather in October
October, the same as September, is another comfortable autumn month in Plainville, Illinois, with an average temperature ranging between max 64.4°F (18°C) and min 47.1°F (8.4°C). The transition into October is accompanied by a temperature decrease, with the average high-temperature shifting from a moderately hot 78.4°F (25.8°C) in September to a refreshing 64.4°F (18°C). Weather in October »Weather in November
November, the last month of the autumn in Plainville, is also a fresh month, with temperature in the range of an average high of 51.4°F (10.8°C) and an average low of 36.1°F (2.3°C). The arrival of November corresponds with a reduction in the average high-temperature, down from October's refreshing 64.4°F (18°C) to a cool 51.4°F (10.8°C). Weather in November »Weather in December
The first month of the winter, December, is also an icy month in Plainville, Illinois, with temperature in the range of an average low of 27.1°F (-2.7°C) and an average high of 39.6°F (4.2°C). As Plainville, Illinois, enters December, the average high-temperature decreases from the a fresh 51.4°F (10.8°C) of November to a wintry 39.6°F (4.2°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
In Plainville, Illinois, the lowest temperatures are generally noted in January, averaging a high of 34°F (1.1°C) and a low of 21.6°F (-5.8°C).
The month with the least rainfall in Plainville is January, when the rain falls for 5.3 days and typically collects 1.14" (29mm) of precipitation.
Throughout the year, there are 136 rainfall days, and 25" (635mm) of precipitation is accumulated.
Months with snowfall in Plainville, Illinois, are January through April, November and December.
January is the month with the most snowfall. Snow falls for 6.2 days and accumulates 3.31" (84mm) of snow.
In Plainville, Illinois, during the entire year, snow falls for 20 days and aggregates up to 8.5" (216mm) of snow.
With an average of 4.5h of sunshine, January has the least sunshine of the year.
The months with the lowest UV index in Plainville, Illinois, 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 in Plainville, Illinois, 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.
The months with the highest humidity in Plainville, Illinois, are May through July, with an average relative humidity of 80%.
May is the month with the most rainfall in Plainville. Rain falls for 17.3 days and accumulates 3.39" (86mm) of precipitation.
In Plainville, Illinois, snow does not fall in May through October.
The month with the longest days is June, with an average of 14h and 54min of daylight.
The months with the highest UV index are June through August, with an average maximum UV index of 6.
July is the month when Plainville's temperatures reach their peak, with averages of 84.7°F (29.3°C) and lows of 67.1°F (19.5°C).
The month with the most sunshine in Plainville is July, with an average of 10.5h of sunshine.
October is the least humid month, with an average relative humidity of 70%.
With an average of 9h and 24min of daylight, December has the shortest days of the year.
Average temperature
Plainville, IL
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (34°F).
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure
Plainville, IL
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.94"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.96"Hg - Average pressure in August:
29.97"Hg - Average pressure in September:
30.02"Hg - Average pressure in October:
30.02"Hg - Average pressure in November:
30.11"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed
Plainville, IL
- Average wind speed in January:
9.9mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.8mph - Average wind speed in April:
9.9mph - Average wind speed in May:
8mph - Average wind speed in June:
7.2mph
- Average wind speed in July:
6.2mph - Average wind speed in August:
6.3mph - Average wind speed in September:
7mph - Average wind speed in October:
8.6mph - Average wind speed in November:
9.6mph - Average wind speed in December:
9.5mph
The windiest months (with the highest average wind speed) are January, February and April (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity
Plainville, IL
The months with the highest relative humidity are May, June and July (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall
Plainville, IL
- Average rainfall in January:
1.14" - Average rainfall in February:
1.22" - Average rainfall in March:
2.17" - Average rainfall in April:
2.6" - Average rainfall in May:
3.39" - Average rainfall in June:
2.95"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days
Plainville, IL
- Average rainfall days in January:
5.3 days - Average rainfall days in February:
6.2 days - Average rainfall days in March:
13.2 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
17.3 days - Average rainfall days in June:
14.6 days
- Average rainfall days in July:
14.3 days - Average rainfall days in August:
12.4 days - Average rainfall days in September:
11.1 days - Average rainfall days in October:
10.8 days - Average rainfall days in November:
9.1 days - Average rainfall days in December:
6.9 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (5.3 days).
Average snowfall
Plainville, IL
The month with the highest snowfall is January (3.31").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Plainville, IL
- Average snowfall days in January:
6.2 days - Average snowfall days in February:
5 days - Average snowfall days in March:
2.8 days - Average snowfall days in April:
0.6 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:
1.1 days - Average snowfall days in December:
4.2 days
The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Plainville, 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 24min - Average daylight in June:
14h and 54min
- 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:
10h and 0min - Average daylight in December:
9h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in January:
4h and 30min - Average sunshine in February:
4h and 42min - Average sunshine in March:
6h and 36min - Average sunshine in April:
8h and 18min - Average sunshine in May:
9h and 18min - Average sunshine in June:
10h and 24min
- Average sunshine in July:
10h and 30min - Average sunshine in August:
10h and 6min - Average sunshine in September:
9h and 30min - Average sunshine in October:
5h and 48min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days
Plainville, IL
- Average sunshine days in January:
20 days - Average sunshine days in February:
17.3 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
13.4 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
11.6 days
- Average sunshine days in July:
14 days - Average sunshine days in August:
16 days - Average sunshine days in September:
17.7 days - Average sunshine days in October:
19.3 days - Average sunshine days in November:
19 days - Average sunshine days in December:
20.3 days
The month with the most sunshine days is December (20.3 days).
The month with the least sunshine days is June (11.6 days).
Average UV index
Plainville, 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
Plainville, IL
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility
Plainville, 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).
