April weather forecastOld Mystic, CT
April
Weather in April
April is a cool spring month in Old Mystic, Connecticut, with an average temperature fluctuating between 54.5°F (12.5°C) and 41°F (5°C).Temperature
As March gives way to April, the average high-temperature displays an increase, moving from a chilly 44.2°F (6.8°C) to a cool 54.5°F (12.5°C). Old Mystic experiences a nighttime temperature average of 41°F (5°C) during April.Humidity
April is the least humid month, with an average relative humidity of 73%.Rainfall
In Old Mystic, in April, it is raining for 15.8 days, with typically 3.27" (83mm) of accumulated precipitation. Throughout the year, there are 162.1 rainfall days, and 33.66" (855mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, November and December. In April, it is snowing for 0.7 days. Throughout April, 0.2" (5mm) of snow is accumulated. Throughout the year, there are 26.7 snowfall days, and 9.72" (247mm) of snow is accumulated.Daylight
In Old Mystic, the average length of the day in April is 13h and 21min.On the first day of the month, sunrise is at 6:29 am and sunset at 7:13 pm. On the last day of April, sunrise is at 5:45 am and sunset at 7:44 pm EDT.
Sunshine
In Old Mystic, the average sunshine in April is 8.2h.UV index
In Old Mystic, the average daily maximum UV index in April is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: A daily maximum UV index of 3 in April translates into the following instructions:
Make use of precautions - It is urged to ward off sun damage. When the Sun is at its strongest around midday, find shade and limit exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Old Mystic, CT
- Average high temperature in April: 54.5°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in April: 41°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in April
Old Mystic, 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
Old Mystic, CT
- Average wind speed in April: 9.7mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in April
Old Mystic, CT
- Average humidity in April: 73%
The months with the highest relative humidity are June and July (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in April
Old Mystic, CT
- Average rainfall in April: 3.27"
The wettest month (with the highest rainfall) is December (3.78").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in April
Old Mystic, CT
- Average rainfall days in April: 15.8 days
The month with the highest number of rainy days is June (16.6 days).
The month with the least rainy days is January (10 days).
Average snowfall in April
Old Mystic, CT
- Average snowfall in April: 0.2"
The month with the highest snowfall is March (2.56").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in April
Old Mystic, CT
- Average snowfall days in April: 0.7 days
The month with the highest number of snowfall days is January (7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Old Mystic, 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 12min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in April
Old Mystic, CT
- Average sunshine days in April: 12.7 days
The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is July (11.5 days).
Average UV index in April
Old Mystic, 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
Old Mystic, CT
- Average cloud cover in April: 46
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in April
Old Mystic, 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).
