April weather forecast
Greenville, IA

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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).

Temperature

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). Greenville's average low-temperature for the month of April records at an icy 39.7°F (4.3°C).

Humidity

The average relative humidity in April is 69%.

Rainfall

In Greenville, in April, during 13.3 rainfall days, 1.61" (41mm) of precipitation is typically accumulated. In Greenville, during the entire year, the rain falls for 112.3 days and collects up to 15.31" (389mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Greenville, in April, snow falls for 2.3 days, with typically accumulated 0.79" (20mm) of snow. Throughout the year, there are 45.5 snowfall days, and 11.14" (283mm) of snow is accumulated.

Daylight

In Greenville, the average length of the day in April is 13h and 26min.
On the first day of April, sunrise is at 7:01 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 8:20 pm CDT.

Sunshine

The average sunshine in April is 7.9h.

UV index

The average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: An average UV index of 3 in April transforms into this advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Stay sun-safe with clothing that is both closely woven and worn loosely. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Updated: Jun 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are April temperatures?

Greenville in April has an average high-temperature of 55.6°F (13.1°C) and an average low-temperature of 39.7°F (4.3°C).

What is the average humidity in April in Greenville?

In April, the average relative humidity in Greenville is 69%.

How many days does it rain in April?

In April, the rain falls for 13.3 days. Throughout April, 1.61" (41mm) of precipitation is accumulated.

How many days does it snow in April?

In April, it is snowing for 2.3 days. Throughout April, 0.79" (20mm) of snow is accumulated.

How many hours of daylight does Greenville have in April?

In Greenville, Iowa, the average day length in April is 13h and 26min.

When is the sunrise / sunset in April?

On the first day of April, sunrise is at 7:01 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 8:20 pm CDT.

How long on average sun shines in April?

In April, the average sunshine duration is 7.9h.

What is the UV index reading in April?

In April, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Greenville, IA

Average temperature in April - Greenville, IA
  • Average high temperature in April: 55.6°F

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).

  • Average low temperature in April: 39.7°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 in April
Greenville, IA

Average pressure in April - Greenville, IA
  • Average pressure in April: 29.93"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 in April
Greenville, IA

Average wind speed in April - Greenville, IA
  • Average wind speed in April: 11.1mph

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 in April
Greenville, IA

Average humidity in April - Greenville, IA
  • Average humidity in April: 69%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (68%).

Average rainfall in April
Greenville, IA

Average rainfall in April - Greenville, IA
  • Average rainfall in April: 1.61"

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 in April
Greenville, IA

Average rainfall days in April - Greenville, IA
  • Average rainfall days in April: 13.3 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 in April
Greenville, IA

Average snowfall in April - Greenville, IA
  • Average snowfall in April: 0.79"

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 in April
Greenville, IA

Average snowfall days in April - Greenville, IA
  • Average snowfall days in April: 2.3 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 in April /
Average sunshine in April
Greenville, IA

Average daylight in April / Average sunshine in April - Greenville, IA
  • Average daylight in April: 13h and 2min

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 April: 7h and 5min

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 in April
Greenville, IA

Average sunshine days in April - Greenville, IA
  • Average sunshine days in April: 13.7 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 in April
Greenville, IA

Average UV index in April - Greenville, IA
  • Average UV index in April: 3

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 in April
Greenville, IA

Average cloud cover in April - Greenville, IA
  • Average cloud cover in April: 45

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 in April
Greenville, IA

Average visibility in April - Greenville, IA
  • Average visibility in April: 6mi

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, Iowa, USA

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