April weather forecast
Greenfield, IL

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Weather in April

April is an enjoyable spring month in Greenfield, Illinois, with temperature in the range of an average high of 63.9°F (17.7°C) and an average low of 46.2°F (7.9°C).

Temperature

In Greenfield, the average high-temperature in April increases from a fresh 52.3°F (11.3°C) in March to an enjoyable 63.9°F (17.7°C). April in Greenfield witnesses an average low-temperature hovering around a frosty 46.2°F (7.9°C).

Humidity

The average relative humidity in April is 75%.

Rainfall

In Greenfield, during April, the rain falls for 12.4 days and regularly aggregates up to 1.5" (38mm) of precipitation. Throughout the year, in Greenfield, there are 120.6 rainfall days, and 14.17" (360mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In Greenfield, Illinois, the average length of the day in April is 13h and 16min.
On the first day of the month, sunrise is at 6:43 am and sunset at 7:25 pm. On the last day of April, sunrise is at 6:02 am and sunset at 7:53 pm CDT.

Sunshine

The average sunshine in April in Greenfield is 8.5h.

UV index

The average daily maximum UV index in April in Greenfield is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A typical high UV index of 4 in April suggests the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in April in Greenfield?

The average high-temperature, in April, in Greenfield, is 63.9°F (17.7°C), while the average low-temperature is 46.2°F (7.9°C).

What is the average humidity in April in Greenfield?

In April, the average relative humidity in Greenfield is 75%.

How many days does it rain in April in Greenfield?

In April, in Greenfield, Illinois, the rain falls for 12.4 days. Throughout April, 1.5" (38mm) of precipitation is accumulated.

When it does not snow in Greenfield?

April through October are months without snowfall in Greenfield, Illinois.

Does it snow in Greenfield in April?

In April, it doesn't snow. March is the latest month when it typically snows.

How many hours of daylight does Greenfield have in April?

In April, the average day length is 13h and 16min.

When are sunrise and sunset in April in Greenfield?

In April, on the first day of the month, sunrise is at 6:43 am and sunset at 7:25 pm. On the last day of the month, in Greenfield, Illinois, sunrise is at 6:02 am and sunset at 7:53 pm CDT.

How many hours of sunshine does Greenfield have in April?

In Greenfield, the average sunshine duration in April is 8.5h.

How high is the UV index in April in Greenfield?

In April, the average daily maximum UV index in Greenfield is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Greenfield, IL

Average temperature in April - Greenfield, IL
  • Average high temperature in April: 63.9°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in April: 46.2°F

The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).

Average pressure in April
Greenfield, IL

Average pressure in April - Greenfield, IL
  • Average pressure in April: 29.93"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 in April
Greenfield, IL

Average wind speed in April - Greenfield, IL
  • Average wind speed in April: 9.6mph

The windiest month (with the highest average wind speed) is January (9.7mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).

Average humidity in April
Greenfield, IL

Average humidity in April - Greenfield, IL
  • Average humidity in April: 75%

The month with the highest relative humidity is July (81%).
The month with the lowest relative humidity is October (71%).

Average rainfall in April
Greenfield, IL

Average rainfall in April - Greenfield, IL
  • Average rainfall in April: 1.5"

The wettest month (with the highest rainfall) is June (1.93").
The driest month (with the least rainfall) is November (0.67").

Average rainfall days in April
Greenfield, IL

Average rainfall days in April - Greenfield, IL
  • Average rainfall days in April: 12.4 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (5.6 days).

Average snowfall in April
Greenfield, IL

Average snowfall in April - Greenfield, IL
  • Average snowfall in April: 0"

The month with the highest snowfall is February (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in April
Greenfield, IL

Average snowfall days in April - Greenfield, IL
  • Average snowfall days in April: 0.3 days

The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in April /
Average sunshine in April
Greenfield, IL

Average daylight in April / Average sunshine in April - Greenfield, IL
  • Average daylight in April: 13h and 2min

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 April: 8h and 3min

The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).

Average sunshine days in April
Greenfield, IL

Average sunshine days in April - Greenfield, IL
  • Average sunshine days in April: 15.8 days

The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is June (12.4 days).

Average UV index in April
Greenfield, IL

Average UV index in April - Greenfield, IL
  • Average UV index in April: 4

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 in April
Greenfield, IL

Average cloud cover in April - Greenfield, IL
  • Average cloud cover in April: 42

The month with the most cloud cover is January (Cloud cover 51).
The months with the least cloud cover are August and September (Cloud cover 28).

Average visibility in April
Greenfield, IL

Average visibility in April - Greenfield, IL
  • 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).

Greenfield, Illinois, USA

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