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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, in Greenville, Illinois, is a wintry winter month, with an average temperature varying between 23.4°F (-4.8°C) and 36.1°F (2.3°C). In Greenville, Illinois, January records the lowest average temperatures, peaking at 36.1°F (2.3°C) and reaching a low of 23.4°F (-4.8°C). Weather in January »
Weather in February
February, the last month of the winter in Greenville, is another cold month, with an average temperature varying between 27°F (-2.8°C) and 41°F (5°C). The shift to February signals an average high-temperature of a still cold 41°F (5°C), subtly varied from January's 36.1°F (2.3°C). Weather in February »
Weather in March
March, the first month of the spring in Greenville, is a cool month, with temperature in the range of an average low of 37°F (2.8°C) and an average high of 53.1°F (11.7°C). March's arrival signals a temperature shift, moving from an icy 41°F (5°C) in February to a cool 53.1°F (11.7°C). Weather in March »
Weather in April
April is a refreshing spring month in Greenville, Illinois, with temperature in the range of an average high of 63.9°F (17.7°C) and an average low of 46.9°F (8.3°C). As Greenville enters April, the average high-temperature increases from the a cool 53.1°F (11.7°C) of March to an enjoyable 63.9°F (17.7°C). Weather in April »
Weather in May
May, the last month of the spring in Greenville, is a warm month, with temperature in the range of an average low of 56.8°F (13.8°C) and an average high of 73.9°F (23.3°C). Greenville's May weather brings a rise in high-temperatures, moving from a refreshing 63.9°F (17.7°C) in April to a warm 73.9°F (23.3°C). Weather in May »
Weather in June
The first month of the summer, June, is also a moderately hot month in Greenville, Illinois, with temperature in the range of an average high of 82.9°F (28.3°C) and an average low of 65.8°F (18.8°C). Greenville's June weather brings a rise in high-temperatures, moving from a moderately hot 73.9°F (23.3°C) in May to a still warm 82.9°F (28.3°C). Weather in June »
Weather in July
July, the same as June, is a moderately hot summer month in Greenville, Illinois, with temperature in the range of an average high of 84.4°F (29.1°C) and an average low of 67.5°F (19.7°C). July, noted for its average high-temperature of 84.4°F (29.1°C) and an average low-temperature of 67.5°F (19.7°C), is considered the warmest month. July's average heat index is computed to be a sweltering 95°F (35°C). Weather in July »
Weather in August
The last month of the summer, August, is also a moderately hot month in Greenville, Illinois, with an average temperature ranging between min 65.1°F (18.4°C) and max 82.9°F (28.3°C). The ushering in of August brings an average high-temperature of a still moderately hot 82.9°F (28.3°C), closely mirroring the 84.4°F (29.1°C) of July. Weather in August »
Weather in September
The first month of the autumn, September, is still a warm month in Greenville, Illinois, with an average temperature fluctuating between 77.9°F (25.5°C) and 59.5°F (15.3°C). Greenville's shift from August to September is accompanied by an average high-temperature of a still moderately hot 77.9°F (25.5°C), a slight deviation from 82.9°F (28.3°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Greenville, Illinois, with an average temperature fluctuating between 48.7°F (9.3°C) and 65.3°F (18.5°C). With the onset of October, Greenville experiences a modest temperature adjustment, with the average high-temperature receding from a moderately hot 77.9°F (25.5°C) in September to a comfortable 65.3°F (18.5°C). Weather in October »
Weather in November
The last month of the autumn, November, is another cool month in Greenville, Illinois, with an average temperature ranging between max 51.8°F (11°C) and min 37.2°F (2.9°C). November brings a minor decrease, with the average high-temperature reducing from a refreshing 65.3°F (18.5°C) in October to a fresh 51.8°F (11°C). Weather in November »
Weather in December
The first month of the winter, December, is also a wintry month in Greenville, Illinois, with an average temperature ranging between max 41.5°F (5.3°C) and min 29.8°F (-1.2°C). The move into December indicates a reduction in the average high-temperature, down from November's cool 51.8°F (11°C) to a wintry 41.5°F (5.3°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest time of year in Greenville?
Temperature records mark January as the coldest month, with highs averaging 36.1°F (2.3°C) and lows at 23.4°F (-4.8°C).
How much does it rain in Greenville?
In Greenville, Illinois, during the entire year, the rain falls for 137.9 days and collects up to 24.88" (632mm) of precipitation.
When does it snow in Greenville?
January through March, November and December are months with snowfall in Greenville.
How many days does it snow in Greenville?
In Greenville, during the entire year, snow falls for 18.3 days and aggregates up to 6.22" (158mm) of snow.
What are the months with the least sunshine in Greenville?
January and February, with an average of 4.5h of sunshine, are months with the least sunshine.
What is the month with the lowest UV index in Greenville?
The months with the lowest UV index in Greenville, Illinois, are January, February, November and December, with an average maximum UV index of 2.
What is the driest month in Greenville?
February is the month with the least rainfall in Greenville, Illinois. Rain falls for 7.3 days and accumulates 1.26" (32mm) of precipitation.
When is Daylight Saving Time (DST) in Greenville?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Greenville, 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.
When it does not snow in Greenville?
April through October are months without snowfall in Greenville, Illinois.
What is the wettest month in Greenville?
The month with the most rainfall in Greenville, Illinois, is June, when the rain falls for 14.9 days and typically aggregates up to 3.43" (87mm) of precipitation.
When are the longest days in Greenville?
With an average of 14h and 54min of daylight, June has the longest days of the year in Greenville, Illinois.
What month has the most sunshine in Greenville?
With an average of 10.4h of sunshine, June has the most sunshine of the year.
What is the month with the highest UV index in Greenville?
June through August, with an average maximum UV index of 6, are months with the highest UV index.
What are the warmest months in Greenville?
July, marked by an average high-temperature of 84.4°F (29.1°C) and a low-temperature of 67.5°F (19.7°C), is the warmest month in Greenville, Illinois.
What is the most humid month in Greenville?
With an average relative humidity of 81%, July is the most humid month.
What is the least humid month in Greenville?
October is the least humid month, with an average relative humidity of 71%.
What is the snowiest month in Greenville?
December is the month with the most snowfall in Greenville. Snow falls for 4.1 days and accumulates 1.89" (48mm) of snow.
What is the month with the shortest days in Greenville?
The month with the shortest days is December, with an average of 9h and 30min of daylight.
Average temperature
Greenville, IL
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (36.1°F).
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure
Greenville, IL
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.12"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.94"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:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed
Greenville, IL
- Average wind speed in January:
10mph - Average wind speed in February:
9.9mph - Average wind speed in March:
9.7mph - Average wind speed in April:
9.6mph - Average wind speed in May:
7.9mph - Average wind speed in June:
6.9mph
- Average wind speed in July:
5.8mph - Average wind speed in August:
5.9mph - Average wind speed in September:
6.4mph - Average wind speed in October:
8.5mph - Average wind speed in November:
9.1mph - Average wind speed in December:
9.2mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity
Greenville, IL
The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall
Greenville, IL
- Average rainfall in January:
1.5" - Average rainfall in February:
1.26" - Average rainfall in March:
1.89" - Average rainfall in April:
2.72" - Average rainfall in May:
2.83" - Average rainfall in June:
3.43"
The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is February (1.26").
Average rainfall days
Greenville, IL
- Average rainfall days in January:
6.3 days - Average rainfall days in February:
7.3 days - Average rainfall days in March:
12.7 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
17.2 days - Average rainfall days in June:
14.9 days
- Average rainfall days in July:
15.3 days - Average rainfall days in August:
12.2 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
9.8 days - Average rainfall days in November:
9.2 days - Average rainfall days in December:
7.2 days
The month with the highest number of rainy days is May (17.2 days).
The month with the least rainy days is January (6.3 days).
Average snowfall
Greenville, IL
The month with the highest snowfall is December (1.89").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days
Greenville, IL
- Average snowfall days in January:
5.8 days - Average snowfall days in February:
5.3 days - Average snowfall days in March:
2 days - Average snowfall days in April:
0.2 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:
0.8 days - Average snowfall days in December:
4.1 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Greenville, IL
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 3min
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 30min).
- Average sunshine in January:
4h and 3min - Average sunshine in February:
4h and 3min - Average sunshine in March:
6h and 2min - Average sunshine in April:
8h and 2min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 0min - Average sunshine in September:
9h and 2min - Average sunshine in October:
6h and 2min - Average sunshine in November:
5h and 4min - Average sunshine in December:
4h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 30min).
Average sunshine days
Greenville, IL
- Average sunshine days in January:
19.7 days - Average sunshine days in February:
16.1 days - Average sunshine days in March:
15.8 days - Average sunshine days in April:
14.1 days - Average sunshine days in May:
11.8 days - Average sunshine days in June:
12.7 days
- Average sunshine days in July:
13.3 days - Average sunshine days in August:
15.3 days - Average sunshine days in September:
16.1 days - Average sunshine days in October:
19.3 days - Average sunshine days in November:
19.2 days - Average sunshine days in December:
20 days
The month with the most sunshine days is December (20 days).
The month with the least sunshine days is May (11.8 days).
Average UV index
Greenville, 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
Greenville, IL
The month with the most cloud cover is January (Cloud cover 52).
The months with the least cloud cover are June, July, August and September (Cloud cover 29).
Average visibility
Greenville, 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).
Greenville, Illinois, USA
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