April weather forecastCornwall, CT
April
Weather in April
April in Cornwall, Connecticut, is a fresh spring month, with temperature in the range of an average high of 55.2°F (12.9°C) and an average low of 37.6°F (3.1°C).Temperature
In Cornwall, the onset of April comes with an increased average high-temperature, moving from March's icy 42.3°F (5.7°C) to a cool 55.2°F (12.9°C). An average low-temperature of 37.6°F (3.1°C) is recorded during the nights in April.Humidity
With an average relative humidity of 74%, April is the least humid month.Rainfall
In Cornwall, in April, during 15.3 rainfall days, 2.95" (75mm) of precipitation is typically accumulated. Throughout the year, there are 160.5 rainfall days, and 33.86" (860mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Cornwall, in April, during 1.4 snowfall days, 0.87" (22mm) of snow is typically accumulated. In Cornwall, Connecticut, during the entire year, snow falls for 40.2 days and aggregates up to 20.39" (518mm) of snow.Daylight
In Cornwall, the average length of the day in April is 13h and 22min.On the first day of April, sunrise is at 6:34 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 5:49 am and sunset at 7:51 pm EDT.
Sunshine
In Cornwall, the average sunshine in April is 8h.UV index
In Cornwall, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In April, an average UV index of 3 transforms into the following instructions:
Take necessary precautions - Defending against sun damage is advocated. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Enhance your sun protection with tightly woven, yet airy clothing. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Cornwall, CT
- Average high temperature in April: 55.2°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30.9°F).
- Average low temperature in April: 37.6°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 (18.9°F).
Average pressure in April
Cornwall, 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
Cornwall, CT
- Average wind speed in April: 7.6mph
The windiest months (with the highest average wind speed) are January and March (8mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in April
Cornwall, CT
- Average humidity in April: 74%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is April (74%).
Average rainfall in April
Cornwall, CT
- Average rainfall in April: 2.95"
The wettest month (with the highest rainfall) is July (3.54").
The driest month (with the least rainfall) is January (2.17").
Average rainfall days in April
Cornwall, CT
- Average rainfall days in April: 15.3 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in April
Cornwall, CT
- Average snowfall in April: 0.87"
The month with the highest snowfall is February (5.16").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Cornwall, CT
- Average snowfall days in April: 1.4 days
The month with the highest number of snowfall days is February (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Cornwall, 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: 8h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in April
Cornwall, CT
- Average sunshine days in April: 12.8 days
The month with the most sunshine days is January (16.8 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in April
Cornwall, CT
- Average UV index in April: 3
The month with the highest UV index is June (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
Cornwall, CT
- Average cloud cover in April: 48
The month with the most cloud cover is February (Cloud cover 53).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in April
Cornwall, CT
- Average visibility in April: 6mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).





