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
Entering April, Rockland notices a subtle temperature elevation, with the average high-temperature advancing from March's icy 37.6°F (3.1°C) to a chilly 45.9°F (7.7°C). A mild drop to an average of 37.8°F (3.2°C) marks the nights during April.Humidity
In April, the average relative humidity is 79%.Rainfall
In Rockland, in April, it is raining for 15.8 days, with typically 2.99" (76mm) of accumulated precipitation. Throughout the year, there are 144.8 rainfall days, and 30.63" (778mm) of precipitation is accumulated.Snowfall
Months with snowfall in Rockland are January through April, November and December. April is the last month it regularly snows. During 2 snowfall days, in April, Rockland aggregates 1.1" (28mm) of snow. Throughout the year, there are 33.1 snowfall days, and 12.36" (314mm) of snow is accumulated.Ocean temperature
In April, the average ocean temperature is 40.6°F (4.8°C).Note: For swimming, this is considered life-threatening and very dangerous. The water feels painfully cold, and hyperventilation quickly occurs. A specialized swimsuit is mandatory to reduce thermal damage.
Daylight
In April, the average length of the day is 13h and 29min.On the first day of April, sunrise is at 6:16 am and sunset at 7:04 pm. On the last day of the month, sunrise is at 5:27 am and sunset at 7:39 pm EDT.
Sunshine
In Rockland, the average sunshine in April is 7.6h.UV index
In April, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In April, the maximum UV index of 3 translates into these guidelines:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Rockland in April?
What is the average humidity in April?
How much does it rain in April?
What is the last month it snows?
How cold is the water in April in Rockland?
How many hours of daylight does Rockland have in April?
When is the sunrise / sunset in April?
How long on average sun shines in April?
What is the UV index intensity in April?
Average temperature in April
Rockland, ME
- Average high temperature in April: 45.9°F
The warmest month (with the highest average high temperature) is August (68.7°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in April: 37.8°F
The month with the highest average low temperature is August (60.6°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in April
Rockland, 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
Rockland, ME
- Average wind speed in April: 12.2mph
The windiest month (with the highest average wind speed) is January (14.9mph).
The calmest months (with the lowest average wind speed) are July and August (8.2mph).
Average humidity in April
Rockland, 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 (75%).
Average rainfall in April
Rockland, ME
- Average rainfall in April: 2.99"
The wettest month (with the highest rainfall) is December (3.35").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in April
Rockland, ME
- Average rainfall days in April: 15.8 days
The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in April
Rockland, ME
- Average snowfall in April: 1.1"
The month with the highest snowfall is January (2.83").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Rockland, ME
- Average snowfall days in April: 2 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in April
Rockland, ME
- Average sea temperature in April: 40.7°F
The best month for swimming (with the highest average sea temperature) is August (60.4°F).
The coldest month (with the lowest average sea temperature) is March (37.8°F).
Average daylight in April /
Average sunshine in April
Rockland, ME
- Average daylight in April: 13h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
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 30min).
The month with the least sunshine is December (Average sunshine: 4h and 30min).
Average sunshine days in April
Rockland, ME
- Average sunshine days in April: 11.5 days
The month with the most sunshine days is September (18 days).
The month with the least sunshine days is April (11.5 days).
Average UV index in April
Rockland, 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
Rockland, ME
- Average cloud cover in April: 50
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in April
Rockland, 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).
Rockland, Maine, USA
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