Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
The start of April brings a rise in the average high-temperature, moving from an icy 34°F (1.1°C) in March to a chilly 48°F (8.9°C). In April, the recorded average low-temperature is a subzero cold 31.5°F (-0.3°C).Humidity
In Charleston, the average relative humidity in April is 79%.Rainfall
The month with the most rainfall is April, when the rain falls for 15.4 days and typically aggregates up to 3.54" (90mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Charleston, in April, during 5.9 snowfall days, 6.14" (156mm) of snow is typically accumulated. In Charleston, during the entire year, snow falls for 69.5 days and aggregates up to 49.96" (1269mm) of snow.Daylight
In Charleston, the average length of the day in April is 13h and 32min.On the first day of the month, sunrise is at 6:15 am and sunset at 7:04 pm. On the last day of April, sunrise is at 5:25 am and sunset at 7:41 pm EDT.
Sunshine
In April, the average sunshine is 6.8h.UV index
The average daily maximum UV index in April in Charleston is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 3 during April translates into the following directions:
Guard yourself - Precautionary measures against sun damage are advocated. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures?
What is the average humidity in April?
What is the rainiest month?
How many days does it rain in April?
How much does it snow in April?
How many hours of daylight does Charleston have in April?
When are sunrise and sunset in April?
How long on average sun shines in April?
What is the UV index intensity in April?
Average temperature in April
Charleston, ME
- Average high temperature in April: 48°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (23.9°F).
- Average low temperature in April: 31.5°F
The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure in April
Charleston, ME
- Average pressure in April: 29.95"Hg
The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in April
Charleston, ME
- Average wind speed in April: 7.3mph
The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in April
Charleston, ME
- Average humidity in April: 79%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is May (76%).
Average rainfall in April
Charleston, ME
- Average rainfall in April: 3.54"
The wettest month (with the highest rainfall) is April (3.54").
The driest month (with the least rainfall) is July (1.89").
Average rainfall days in April
Charleston, ME
- Average rainfall days in April: 15.4 days
The months with the highest number of rainy days are May and July (16.7 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in April
Charleston, ME
- Average snowfall in April: 6.14"
The month with the highest snowfall is February (11.26").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in April
Charleston, ME
- Average snowfall days in April: 5.9 days
The month with the highest number of snowfall days is February (15.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in April /
Average sunshine in April
Charleston, ME
- Average daylight in April: 13h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in April: 6h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in April
Charleston, ME
- Average sunshine days in April: 10.7 days
The month with the most sunshine days is September (16.4 days).
The month with the least sunshine days is April (10.7 days).
Average UV index in April
Charleston, ME
- Average UV index in April: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in April
Charleston, ME
- Average cloud cover in April: 55
The month with the most cloud cover is February (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 40).
Average visibility in April
Charleston, ME
- Average visibility in April: 5mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February and March (4mi).
Charleston, Maine, USA
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