April weather forecastNew Haven, CT
April
Weather in April
April brings significant transformations in New Haven's weather. It is devoid of snowfall with the temperature rising to a pleasant range. The cold, biting winter is becoming a memory with the emergence of sprouting buds and blossoming landscapes. April also witnesses more rainfall compared to previous months, creating an atmospheric backdrop for local parks and gardens. The extended sunshine duration revives the city, and the weather becomes truly welcoming.Temperature
In New Haven, the onset of April comes with an increased average high-temperature, moving from March's frosty 43.9°F (6.6°C) to a fresh 54.9°F (12.7°C). April brings an average low-temperature of 42.3°F (5.7°C) to New Haven.Humidity
April and November, with an average relative humidity of 72%, are the least humid months in New Haven.Rainfall
In New Haven, in April, during 15.1 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. In New Haven, Connecticut, during the entire year, the rain falls for 167.2 days and collects up to 35.71" (907mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in New Haven. April is the last month it regularly snows. During 0.4 snowfall days, in April, New Haven aggregates 0.08" (2mm) of snow. Throughout the year, there are 23.1 snowfall days, and 9.21" (234mm) of snow is accumulated.Ocean temperature
In New Haven, in April, the average water temperature is 44.4°F (6.9°C).Note: Swimming in 44.4°F (6.9°C) is deemed hazardous. Exposure to temperatures below 50°F (10°C) leads to immediate severe cold shock and hyperventilation.
Daylight
In April, the average length of the day in New Haven is 13h and 21min.On the first day of April, sunrise is at 6:33 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 7:48 pm EDT.
Sunshine
The average sunshine in April is 8.4h.UV index
The average daily maximum UV index in April in New Haven is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: In April, a daily maximum UV index of 3 leads to the following instructions:
Ensure safety - Recommendations to avert sunburn are presented. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
New Haven, CT
- Average high temperature in April: 54.9°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in April: 42.3°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure in April
New Haven, CT
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
New Haven, CT
- Average wind speed in April: 9.4mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in April
New Haven, CT
- Average humidity in April: 72%
The months with the highest relative humidity are February, May and June (76%).
The months with the lowest relative humidity are April and November (72%).
Average rainfall in April
New Haven, CT
- Average rainfall in April: 3.11"
The wettest month (with the highest rainfall) is December (3.86").
The driest month (with the least rainfall) is September (2.24").
Average rainfall days in April
New Haven, CT
- Average rainfall days in April: 15.1 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in April
New Haven, CT
- Average snowfall in April: 0.08"
The month with the highest snowfall is March (2.8").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
New Haven, CT
- Average snowfall days in April: 0.4 days
The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in April
New Haven, CT
- Average sea temperature in April: 44.4°F
The best month for swimming (with the highest average sea temperature) is August (73°F).
The coldest month (with the lowest average sea temperature) is February (38.5°F).
Average daylight in April /
Average sunshine in April
New Haven, CT
- Average daylight in April: 13h and 24min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in April: 8h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in April
New Haven, CT
- Average sunshine days in April: 12.7 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is August (11.3 days).
Average UV index in April
New Haven, CT
- Average UV index in April: 3
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, March, November and December (UV index 2).
Average cloud cover in April
New Haven, CT
- Average cloud cover in April: 45
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in April
New Haven, CT
- 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).
