Climate and monthly weather forecast
Greenville, IA

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Weather in January

January, the same as December, in Greenville, Iowa, is another subzero cold winter month, with an average temperature fluctuating between 22.8°F (-5.1°C) and 10.6°F (-11.9°C). With average temperatures fluctuating between a high of 22.8°F (-5.1°C) and a low of 10.6°F (-11.9°C), January stands out as the coldest month. Weather in January »

Weather in February

February, the last month of the winter in Greenville, is another freezing cold month, with an average temperature varying between 27°F (-2.8°C) and 13.5°F (-10.3°C). February brings an average high-temperature of a still subzero cold 27°F (-2.8°C), nearly identical to the preceding month. Weather in February »

Weather in March

The first month of the spring, March, is an icy month in Greenville, Iowa, with an average temperature varying between 42.4°F (5.8°C) and 28.2°F (-2.1°C). Greenville experiences a noticeable temperature shift with the start of March, with average high-temperatures moving from a subzero cold 27°F (-2.8°C) in February to a wintry 42.4°F (5.8°C). Weather in March »

Weather in April

April in Greenville, Iowa, is a refreshing spring month, with an average temperature fluctuating between 55.6°F (13.1°C) and 39.7°F (4.3°C). The onset of April brings a temperature shift, with the average high-temperature moving from a wintry 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 comfortable 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 May weather shows an increase in high-temperatures, moving from April's refreshing 55.6°F (13.1°C) to a comfortable 67.8°F (19.9°C). Weather in May »

Weather in June

June, the first month of the summer in Greenville, is a moderately hot month, with an average temperature varying between 77.4°F (25.2°C) and 61.2°F (16.2°C). With the onset of June, Greenville experiences a temperature shift, with the average high-temperature moving from an enjoyable 67.8°F (19.9°C) in May to a warm 77.4°F (25.2°C). Weather in June »

Weather in July

July, like June, in Greenville, Iowa, is another warm summer month, with an average temperature varying between 80.2°F (26.8°C) and 63.1°F (17.3°C). July is the month when Greenville experiences its warmest temperatures, averaging a high of 80.2°F (26.8°C) and a low of 63.1°F (17.3°C). Weather in July »

Weather in August

August, the last month of the summer in Greenville, is another warm month, with an average temperature ranging between min 59.5°F (15.3°C) and max 78.3°F (25.7°C). In August, Greenville experiences a minor shift in meteorological conditions with average high-temperatures marked at a still moderately hot 78.3°F (25.7°C), closely mirroring the climate in July. Weather in August »

Weather in September

September, the first month of the autumn in Greenville, is still a pleasant month, with an average temperature ranging between min 53.8°F (12.1°C) and max 72.9°F (22.7°C). September is marked by a subtle drop in average high-temperatures, 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 mild autumn month in Greenville, Iowa, with an average temperature ranging between min 42.1°F (5.6°C) and max 57.2°F (14°C). With the beginning of October, Greenville's average high-temperature experiences a significant decrease, moving from a pleasant 72.9°F (22.7°C) in September to a mild 57.2°F (14°C). Weather in October »

Weather in November

November, the last month of the autumn in Greenville, is also a frosty month, with an average temperature varying between 43.2°F (6.2°C) and 29.7°F (-1.3°C). November's arrival corresponds with a decrease in average high-temperatures, from October's refreshing 57.2°F (14°C) to a frosty 43.2°F (6.2°C). Weather in November »

Weather in December

December, the first month of the winter in Greenville, is still a freezing cold month, with an average temperature ranging between max 27.5°F (-2.5°C) and min 16.9°F (-8.4°C). The shift from November to December brings a noticeable decrease in the average high-temperature, dropping from a frosty 43.2°F (6.2°C) to a subzero cold 27.5°F (-2.5°C). Weather in December »
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Frequently asked questions

What are the coldest months in Greenville?

January, recording an average high temperature of 22.8°F (-5.1°C) and a low temperature of 10.6°F (-11.9°C), is Greenville's coldest month.

What is the most humid month in Greenville?

January is the most humid month, with an average relative humidity of 87%.

What is the driest month in Greenville?

January is the month with the least rainfall in Greenville. Rain falls for 3.1 days and accumulates 0.43" (11mm) of precipitation.

How much does it rain in Greenville?

Throughout the year, there are 112.3 rainfall days, and 15.31" (389mm) of precipitation is accumulated.

When does it snow in Greenville?

January through May, October through December are months with snowfall in Greenville, Iowa.

How many days does it snow in Greenville?

Throughout the year, in Greenville, Iowa, there are 45.5 snowfall days, and 11.14" (283mm) of snow is accumulated.

What is the month with the least sunshine in Greenville?

The month with the least sunshine in Greenville, Iowa, is January, with an average of 4h of sunshine.

When is the lowest UV index in Greenville?

The months with the lowest UV index in Greenville are January and February, with an average maximum UV index of 1.

What is the snowiest month in Greenville?

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.

When is Daylight Saving Time (DST) in Greenville?

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 wettest month in Greenville?

The month with the most rainfall is June, when the rain falls for 15.4 days and typically aggregates up to 2.44" (62mm) of precipitation.

When it does not snow in Greenville?

June through September are months without snowfall.

When are the longest days in Greenville?

The month with the longest days in Greenville is June, with an average of 15h and 18min of daylight.

What are the months with the highest UV index in Greenville?

The months with the highest UV index are June and July, with an average maximum UV index of 6.

What is the hottest time of year in Greenville?

Greenville's warmest month, July, generally records average temperatures ranging from a high of 80.2°F (26.8°C) to a low of 63.1°F (17.3°C).

What month has the most sunshine in Greenville?

With an average of 10.4h of sunshine, July has the most sunshine of the year in Greenville, Iowa.

What is the least humid month in Greenville?

October is the least humid month, with an average relative humidity of 68%.

What is the month with the shortest days in Greenville?

The month with the shortest days in Greenville is December, with an average of 9h and 6min of daylight.

Average temperature
Greenville, IA

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).

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Average pressure
Greenville, IA

Average pressure - Greenville, IA

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

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Average wind speed
Greenville, IA

Average wind speed - Greenville, IA

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).

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Average rainfall
Greenville, IA

Average rainfall - Greenville, IA

The wettest month (with the highest rainfall) is June (2.44").
The driest month (with the least rainfall) is January (0.43").

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Average rainfall days
Greenville, IA

Average rainfall days - Greenville, IA

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).

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Average snowfall
Greenville, IA

Average snowfall - Greenville, IA

The month with the highest snowfall is February (2.72").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days
Greenville, IA

Average snowfall days - Greenville, IA

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).

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Average daylight / Average sunshine
Greenville, IA

Average daylight / Average sunshine - Greenville, IA

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).

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).

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Average sunshine days
Greenville, IA

Average sunshine days - Greenville, IA

The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is June (10.8 days).

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Average visibility
Greenville, IA

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).

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Greenville, Iowa, USA

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