April weather forecastUnion, ME
April
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 13h and 30min
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 36min
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: 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: 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: 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: 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).





