April weather forecastNew London, CT

April
Weather in April
April carries the warmth of spring further into the year in New London, Connecticut. A noticeable increase in temperatures and daylight hours illuminates the city with a gentle radiance. Temperatures during this month can be expected to sway from 42.4°F (5.8°C) to 53.4°F (11.9°C), while snowfall becomes almost negligible with an average of 0.08" (2mm). Some intermittent rains nurture the blooming foliage, adding a vibrant green touch to the city. April's mild weather perfectly complements the bloom of flora across New London.Temperature
As April begins, there is an increase in the average high-temperature, moving from a frosty 43.3°F (6.3°C) in March to a fresh 53.4°F (11.9°C). Throughout the month of April, the average temperature in New London, Connecticut, dips to an icy 42.4°F (5.8°C) at night.Humidity
The months with the lowest humidity in New London are January, March, April and November, with an average relative humidity of 74%.Rainfall
In New London, in April, it is raining for 14.9 days, with typically 3.11" (79mm) of accumulated precipitation. Throughout the year, there are 159.8 rainfall days, and 33.07" (840mm) of precipitation is accumulated.Snowfall
Months with snowfall in New London are January through April, November and December. April is the last month it regularly snows. During 0.7 snowfall days, in April, New London aggregates 0.08" (2mm) of snow. Throughout the year, in New London, there are 24 snowfall days, and 7.68" (195mm) of snow is accumulated.Ocean temperature
In April, the average ocean temperature is 44.4°F (6.9°C).Note: Without suitable protection, venturing into 44.4°F (6.9°C) waters cooler than 50°F (10°C) can lead to pronounced cold shock and rapid breaths.
Daylight
The average length of the day in April in New London is 13h and 21min.On the first day of the month, sunrise is at 6:30 am and sunset at 7:14 pm. On the last day of April, sunrise is at 5:45 am and sunset at 7:45 pm EDT.
Sunshine
In April, the average sunshine in New London is 8.4h.UV index
In New London, the average daily maximum UV index in April is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 3 in April interprets into the following advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Enhance your sun protection with tightly woven, yet airy clothing. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
New London, CT
- Average high temperature in April: 53.4°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in April: 42.4°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in April
New London, CT
- Average pressure in April: 29.98"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
New London, CT
- Average wind speed in April: 10.6mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).
Average humidity in April
New London, CT
- Average humidity in April: 74%
The month with the highest relative humidity is June (80%).
The months with the lowest relative humidity are January, March, April and November (74%).
Average rainfall in April
New London, 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 (1.65").
Average rainfall days in April
New London, CT
- Average rainfall days in April: 14.9 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is February (9.5 days).
Average snowfall in April
New London, CT
- Average snowfall in April: 0.08"
The month with the highest snowfall is March (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
New London, CT
- Average snowfall days in April: 0.7 days
The month with the highest number of snowfall days is February (6.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in April
New London, CT
- Average sea temperature in April: 44.4°F
The best month for swimming (with the highest average sea temperature) is August (72.1°F).
The coldest month (with the lowest average sea temperature) is February (38.8°F).
Average daylight in April /
Average sunshine in April
New London, 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 12min).
- Average sunshine in April: 8h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in April
New London, CT
- Average sunshine days in April: 13.8 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is February (12.5 days).
Average UV index in April
New London, 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 London, CT
- Average cloud cover in April: 44
The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in April
New London, 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).





