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 sea temperature 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
April's arrival is marked by an increase in the average high-temperature, moving from a cold 37°F (2.8°C) in March to a frosty 46°F (7.8°C). April records a small disparity from daytime temperatures, marking an average low-temperature of 37.2°F (2.9°C).Humidity
In April, the average relative humidity is 79%.Rainfall
In Deer Isle, in April, during 11.7 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. Throughout the year, there are 115.5 rainfall days, and 17.95" (456mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. April is the last month it regularly snows. During 1.8 snowfall days, in April, Deer Isle aggregates 0.91" (23mm) of snow. Throughout the year, there are 29.2 snowfall days, and 9.65" (245mm) of snow is accumulated.Ocean temperature
In April, the average ocean temperature is 40.6°F (4.8°C).Note: While swimming, this is deemed life-threatening and exceptionally hazardous. The icy water induces intense pain and causes swift hyperventilation. Employing a specialized swimsuit is required to offset thermal harm.
Daylight
The average length of the day in April is 13h and 29min.On the first day of April, sunrise is at 6:14 am and sunset at 7:02 pm. On the last day of the month, sunrise is at 5:25 am and sunset at 7:37 pm EDT.
Sunshine
In Deer Isle, the average sunshine in April is 7.6h.UV index
In Deer Isle, the average daily maximum UV index in April is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 3 in April translates into the following instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. Direct Sun exposure should be minimized especially during midday when radiation is most intense. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature?
What is the average humidity in April?
How much does it rain in April?
What is the last month it snows?
What is the ocean temperature in April?
What is the average length of the day in April?
When are sunrise and sunset in April?
How long on average sun shines in April?
How high is the UV index in April in Deer Isle?
Average temperature in April
Deer Isle, ME
- Average high temperature in April: 46°F
The warmest month (with the highest average high temperature) is August (68.9°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in April: 37.2°F
The month with the highest average low temperature is August (59.9°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in April
Deer Isle, 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 (29.91"Hg).
Average wind speed in April
Deer Isle, ME
- Average wind speed in April: 11.7mph
The windiest month (with the highest average wind speed) is January (14.4mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).
Average humidity in April
Deer Isle, ME
- Average humidity in April: 79%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is November (76%).
Average rainfall in April
Deer Isle, ME
- Average rainfall in April: 1.69"
The wettest month (with the highest rainfall) is October (2.09").
The driest month (with the least rainfall) is September (0.91").
Average rainfall days in April
Deer Isle, ME
- Average rainfall days in April: 11.7 days
The month with the highest number of rainy days is July (12.8 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in April
Deer Isle, ME
- Average snowfall in April: 0.91"
The month with the highest snowfall is February (2.32").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in April
Deer Isle, ME
- Average snowfall days in April: 1.8 days
The month with the highest number of snowfall days is January (7.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in April
Deer Isle, ME
- Average sea temperature in April: 40.6°F
The best month for swimming (with the highest average sea temperature) is August (58.6°F).
The coldest month (with the lowest average sea temperature) is March (38.2°F).
Average daylight in April /
Average sunshine in April
Deer Isle, ME
- Average daylight in April: 13h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in April: 7h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 30min).
Average sunshine days in April
Deer Isle, ME
- Average sunshine days in April: 15.5 days
The month with the most sunshine days is September (19.9 days).
The month with the least sunshine days is July (15.4 days).
Average UV index in April
Deer Isle, 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, November and December (UV index 2).
Average cloud cover in April
Deer Isle, ME
- Average cloud cover in April: 51
The months with the most cloud cover are February and March (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in April
Deer Isle, ME
- 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).
Deer Isle, Maine, USA
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