April weather forecast
Union, ME

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Weather in April

April is a frosty spring month in Union, Maine, with an average temperature varying between 36.7°F (2.6°C) and 46.9°F (8.3°C).

Temperature

In April, the average high-temperature increases from a cold 37.2°F (2.9°C) in March to a chilly 46.9°F (8.3°C). Throughout April, an average nighttime temperature of 36.7°F (2.6°C) is experienced in Union.

Humidity

In April, the average relative humidity in Union is 78%.

Rainfall

The months with the most rainfall are April, November and December, with an average 1.42" (36mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. April is the last month it regularly snows. During 2.2 snowfall days, in April, Union aggregates 0.91" (23mm) of snow. Throughout the year, in Union, Maine, there are 32.6 snowfall days, and 7.05" (179mm) of snow is accumulated.

Daylight

The average length of the day in April in Union is 13h and 29min.
On the first day of the month, sunrise is at 6:16 am and sunset at 7:04 pm. On the last day of April, in Union, sunrise is at 5:28 am and sunset at 7:40 pm EDT.

Sunshine

The average sunshine in April is 7.6h.

UV index

The average daily maximum UV index in April in Union, Maine, is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 3 during April translates into the following directions:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average April temperature in Union?

Union in April has an average high-temperature of 46.9°F (8.3°C) and an average low-temperature of 36.7°F (2.6°C).

What is the average humidity in April in Union?

The average relative humidity in April in Union, Maine, is 78%.

What is the wettest month in Union?

The wettest months in Union, Maine, are April, November and December, with an average 1.42" (36mm) of rainfall.

How many days does it rain in April in Union?

In April, in Union, the rain falls for 13.2 days. Throughout April, 1.42" (36mm) of precipitation is accumulated.

What is the last month it snows in Union?

April is the last month it regularly snows in Union, Maine. During 2.2 snowfall days, in April, Union aggregates 0.91" (23mm) of snow.

How many hours of daylight does Union have in April?

In Union, Maine, the average day length in April is 13h and 29min.

When is the sunrise / sunset in April in Union?

In April, on the first day of the month, sunrise is at 6:16 am and sunset at 7:04 pm. On the last day of the month, in Union, Maine, sunrise is at 5:28 am and sunset at 7:40 pm EDT.

How long on average sun shines in April in Union?

In April, the average sunshine duration in Union, Maine, is 7.6h.

What is the UV index intensity in April in Union?

In Union, the average daily maximum UV index in April is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
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
Union, ME

Average temperature in April - Union, ME
  • Average high temperature in April: 46.9°F

The warmest month (with the highest average high temperature) is August (70.7°F).
The month with the lowest average high temperature is January (29.8°F).

  • Average low temperature in April: 36.7°F

The months with the highest average low temperature are July and August (59.4°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).

Average pressure in April
Union, ME

Average pressure in April - Union, ME
  • Average pressure in April: 29.95"Hg

The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in April
Union, ME

Average wind speed in April - Union, ME
  • Average wind speed in April: 10.9mph

The windiest month (with the highest average wind speed) is January (12.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.2mph).

Average humidity in April
Union, ME

Average humidity in April - Union, ME
  • Average humidity in April: 78%

The months with the highest relative humidity are June and July (84%).
The month with the lowest relative humidity is November (76%).

Average rainfall in April
Union, ME

Average rainfall in April - Union, ME
  • Average rainfall in April: 1.42"

The wettest months (with the highest rainfall) are April, November and December (1.42").
The driest month (with the least rainfall) is September (0.75").

Average rainfall days in April
Union, ME

Average rainfall days in April - Union, ME
  • Average rainfall days in April: 13.2 days

The month with the highest number of rainy days is April (13.2 days).
The months with the least rainy days are January and February (6.8 days).

Average snowfall in April
Union, ME

Average snowfall in April - Union, ME
  • Average snowfall in April: 0.91"

The month with the highest snowfall is January (1.69").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in April
Union, ME

Average snowfall days in April - Union, ME
  • Average snowfall days in April: 2.2 days

The month with the highest number of snowfall days is January (8 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
Union, ME

Average daylight in April / Average sunshine in April - Union, ME
  • Average daylight in April: 13h and 3min

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in April: 7h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).

Average sunshine days in April
Union, ME

Average sunshine days in April - Union, ME
  • Average sunshine days in April: 13.8 days

The month with the most sunshine days is September (19.9 days).
The month with the least sunshine days is April (13.8 days).

Average UV index in April
Union, ME

Average UV index in April - Union, ME
  • Average UV index in April: 3

The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in April
Union, ME

Average cloud cover in April - Union, ME
  • Average cloud cover in April: 51

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in April
Union, ME

Average visibility in April - Union, ME
  • 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).

Union, Maine, USA

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