April weather forecastUnion, CT
April
Weather in April
April in Union, Connecticut, is a mild spring month, with an average temperature fluctuating between 37.9°F (3.3°C) and 55.4°F (13°C).Temperature
With the onset of April, Union's average high-temperature sees a rise, moving from March's cold 42.4°F (5.8°C) to a mild 55.4°F (13°C). Throughout the April nights, Union encounters a low-temperature of 37.9°F (3.3°C).Humidity
The least humid month is April, with an average relative humidity of 73%.Rainfall
In Union, Connecticut, in April, during 14.7 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. In Union, during the entire year, the rain falls for 148.3 days and collects up to 29.21" (742mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Union, in April, snow falls for 1.7 days, with typically accumulated 1.14" (29mm) of snow. Throughout the year, there are 35.3 snowfall days, and 19.53" (496mm) of snow is accumulated.Daylight
The average length of the day in April in Union is 13h and 23min.On the first day of April in Union, sunrise is at 6:29 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 5:44 am and sunset at 7:46 pm EDT.
Sunshine
In Union, the average sunshine in April is 7.9h.UV index
The average daily maximum UV index in April in Union is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 3 during April leads to these advisories:
Guard yourself - Precautionary measures against sun damage are advocated. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Union, CT
- Average high temperature in April: 55.4°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in April: 37.9°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in April
Union, CT
- Average pressure in April: 29.97"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Union, CT
- Average wind speed in April: 8.2mph
The windiest months (with the highest average wind speed) are January and February (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in April
Union, CT
- Average humidity in April: 73%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (73%).
Average rainfall in April
Union, CT
- Average rainfall in April: 2.64"
The wettest month (with the highest rainfall) is July (2.76").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in April
Union, CT
- Average rainfall days in April: 14.7 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in April
Union, CT
- Average snowfall in April: 1.14"
The month with the highest snowfall is February (4.88").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Union, CT
- Average snowfall days in April: 1.7 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Union, CT
- Average daylight in April: 13h and 24min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 7h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 24min).
Average sunshine days in April
Union, CT
- Average sunshine days in April: 14 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is June (13.1 days).
Average UV index in April
Union, CT
- 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, February, March, November and December (UV index 2).
Average cloud cover in April
Union, CT
- Average cloud cover in April: 48
The month with the most cloud cover is March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in April
Union, CT
- Average visibility in April: 6mi
The months with the highest visibility are March, April, November and December (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September and October (5mi).





