Climate and monthly weather forecastGreenville, IA
Climate and monthly weather forecast
Weather in January
January, like December, is another subzero cold winter month in Greenville, Iowa, with an average temperature ranging between max 22.8°F (-5.1°C) and min 10.6°F (-11.9°C). Greenville's coldest month, January, registers temperatures that range from a high of 22.8°F (-5.1°C) to a low of 10.6°F (-11.9°C). Weather in January »Weather in February
The last month of the winter, February, is also a subzero cold month in Greenville, Iowa, with an average temperature varying between 27°F (-2.8°C) and 13.5°F (-10.3°C). February's presence records an average high-temperature of a still subzero cold 27°F (-2.8°C), closely mirroring January's climate. Weather in February »Weather in March
March, the first month of the spring in Greenville, is a wintry month, with temperature in the range of an average high of 42.4°F (5.8°C) and an average low of 28.2°F (-2.1°C). The start of March brings a distinct shift in the average high-temperature, escalating from February's freezing cold 27°F (-2.8°C) to a wintry 42.4°F (5.8°C). Weather in March »Weather in April
April is a mild spring month in Greenville, Iowa, with an average temperature fluctuating between 39.7°F (4.3°C) and 55.6°F (13.1°C). The commencement of April sees a shift in the average high-temperature, moving from a cold 42.4°F (5.8°C) in March to a refreshing 55.6°F (13.1°C). Weather in April »Weather in May
The last month of the spring, May, is a refreshing month in Greenville, Iowa, with an average temperature fluctuating between 67.8°F (19.9°C) and 51.4°F (10.8°C). Greenville's transition into May is marked by a rise in the average high-temperature, advancing from a mild 55.6°F (13.1°C) in April to a still refreshing 67.8°F (19.9°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Greenville, Iowa, with an average temperature fluctuating between 77.4°F (25.2°C) and 61.2°F (16.2°C). Observing a rise in June, the average high-temperature goes from May's refreshing 67.8°F (19.9°C) to a warm 77.4°F (25.2°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Greenville, Iowa, with an average temperature varying between 80.2°F (26.8°C) and 63.1°F (17.3°C). July, characterized by an average high temperature of 80.2°F (26.8°C) and a low temperature of 63.1°F (17.3°C), is generally the warmest month. Weather in July »Weather in August
August, the last month of the summer in Greenville, is also a moderately hot month, with an average temperature fluctuating between 59.5°F (15.3°C) and 78.3°F (25.7°C). Greenville notes an average high-temperature of a still moderately hot 78.3°F (25.7°C) in August, displaying minor variation from July. Weather in August »Weather in September
The first month of the autumn, September, is still a pleasant month in Greenville, Iowa, with temperature in the range of an average low of 53.8°F (12.1°C) and an average high of 72.9°F (22.7°C). The beginning of September subtly marks a decrease in the average high-temperature, transitioning from a moderately hot 78.3°F (25.7°C) in August to a pleasant 72.9°F (22.7°C). Weather in September »Weather in October
October, like September, is another refreshing autumn month in Greenville, Iowa, with an average temperature fluctuating between 42.1°F (5.6°C) and 57.2°F (14°C). As October sets, the average high-temperature displays a significant decrease, moving down from an agreeable 72.9°F (22.7°C) in September to a refreshing 57.2°F (14°C). Weather in October »Weather in November
The last month of the autumn, November, is also a frosty month in Greenville, Iowa, with temperature in the range of an average low of 29.7°F (-1.3°C) and an average high of 43.2°F (6.2°C). With the onset of November, Greenville experiences a modest temperature adjustment, with the average high-temperature receding from a mild 57.2°F (14°C) in October to a chilly 43.2°F (6.2°C). Weather in November »Weather in December
The first month of the winter, December, is also a subzero cold month in Greenville, Iowa, with an average temperature ranging between min 16.9°F (-8.4°C) and max 27.5°F (-2.5°C). December is characterized by a noticeable reduction in the average high-temperature, falling from a frosty 43.2°F (6.2°C) in November to a freezing cold 27.5°F (-2.5°C). Weather in December »Updated: Jun 14, 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
Greenville experiences its lowest temperatures in January, with an average peak of 22.8°F (-5.1°C) and a low of 10.6°F (-11.9°C).
The most humid month is January, with an average relative humidity of 87%.
The month with the least rainfall is January, when the rain falls for 3.1 days and typically collects 0.43" (11mm) of precipitation.
Throughout the year, there are 112.3 rainfall days, and 15.31" (389mm) of precipitation is accumulated.
Months with snowfall are January through May, October through December.
In Greenville, Iowa, during the entire year, snow falls for 45.5 days and aggregates up to 11.14" (283mm) of snow.
The month with the least sunshine is January, with an average of 4h of sunshine.
The months with the lowest UV index in Greenville are January and February, with an average maximum UV index of 1.
The month with the most snowfall is February, when snow falls for 9.5 days and typically aggregates up to 2.72" (69mm) of snow.
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.
The month with the most rainfall in Greenville is June, when the rain falls for 15.4 days and typically aggregates up to 2.44" (62mm) of precipitation.
June through September are months without snowfall.
With an average of 15h and 18min of daylight, June has the longest days of the year.
June and July, with an average maximum UV index of 6, are months with the highest UV index.
July stands out as Greenville's warmest month, with an average high-temperature of 80.2°F (26.8°C) and a low-temperature of 63.1°F (17.3°C).
The month with the most sunshine is July, with an average of 10.4h of sunshine.
With an average relative humidity of 68%, October is the least humid month.
December has the shortest days of the year, with an average of 9h and 6min of daylight.
Average temperature
Greenville, IA
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.8°F).
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure
Greenville, IA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.15"Hg - Average pressure in March:
30.07"Hg - Average pressure in April:
29.93"Hg - Average pressure in May:
29.93"Hg - Average pressure in June:
29.87"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30"Hg - Average pressure in October:
29.99"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed
Greenville, IA
- Average wind speed in January:
11.1mph - Average wind speed in February:
11mph - Average wind speed in March:
10.9mph - Average wind speed in April:
11.1mph - Average wind speed in May:
9.7mph - Average wind speed in June:
8.7mph
- Average wind speed in July:
7.6mph - Average wind speed in August:
7.8mph - Average wind speed in September:
9mph - Average wind speed in October:
10.4mph - Average wind speed in November:
10.8mph - Average wind speed in December:
10.7mph
The windiest months (with the highest average wind speed) are January and April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).
Average humidity
Greenville, IA
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (68%).
Average rainfall
Greenville, IA
- Average rainfall in January:
0.43" - Average rainfall in February:
0.55" - Average rainfall in March:
1.02" - Average rainfall in April:
1.61" - Average rainfall in May:
2.13" - Average rainfall in June:
2.44"
- Average rainfall in July:
1.57" - Average rainfall in August:
1.61" - Average rainfall in September:
1.3" - Average rainfall in October:
1.26" - Average rainfall in November:
0.55" - Average rainfall in December:
0.83"
The wettest month (with the highest rainfall) is June (2.44").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days
Greenville, IA
- Average rainfall days in January:
3.1 days - Average rainfall days in February:
2.7 days - Average rainfall days in March:
8 days - Average rainfall days in April:
13.3 days - Average rainfall days in May:
15.5 days - Average rainfall days in June:
15.4 days
- Average rainfall days in July:
13.3 days - Average rainfall days in August:
12.6 days - Average rainfall days in September:
10.5 days - Average rainfall days in October:
9.1 days - Average rainfall days in November:
4.8 days - Average rainfall days in December:
4 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is February (2.7 days).
Average snowfall
Greenville, IA
- Average snowfall in January:
2.2" - Average snowfall in February:
2.72" - Average snowfall in March:
1.81" - Average snowfall in April:
0.79" - Average snowfall in May:
0.12" - Average snowfall in June:
0"
The month with the highest snowfall is February (2.72").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Greenville, IA
- Average snowfall days in January:
10.8 days - Average snowfall days in February:
9.5 days - Average snowfall days in March:
6.7 days - Average snowfall days in April:
2.3 days - Average snowfall days in May:
0.3 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:
1.5 days - Average snowfall days in November:
4.5 days - Average snowfall days in December:
9.9 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Greenville, IA
- Average daylight in January:
9h and 24min - Average daylight in February:
10h and 36min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 24min - Average daylight in May:
14h and 42min - Average daylight in June:
15h and 18min
- Average daylight in July:
15h and 0min - Average daylight in August:
13h and 54min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 42min - Average daylight in December:
9h and 6min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in January:
4h and 0min - Average sunshine in February:
4h and 48min - Average sunshine in March:
6h and 6min - Average sunshine in April:
7h and 54min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 42min
- Average sunshine in July:
10h and 24min - Average sunshine in August:
9h and 36min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 42min - Average sunshine in November:
5h and 24min - Average sunshine in December:
4h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days
Greenville, IA
- Average sunshine days in January:
19.1 days - Average sunshine days in February:
17.8 days - Average sunshine days in March:
17.4 days - Average sunshine days in April:
13.7 days - Average sunshine days in May:
12.6 days - Average sunshine days in June:
10.8 days
- Average sunshine days in July:
14.1 days - Average sunshine days in August:
15.3 days - Average sunshine days in September:
17.5 days - Average sunshine days in October:
19.4 days - Average sunshine days in November:
20.1 days - Average sunshine days in December:
19.2 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is June (10.8 days).
Average UV index
Greenville, IA
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover
Greenville, IA
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility
Greenville, IA
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).
