April weather forecastRockport, MA
April
Weather in April
April is a frosty spring month in Rockport, Massachusetts, with an average temperature ranging between min 40.8°F (4.9°C) and max 48.7°F (9.3°C).Temperature
Observing a minor shift, the average high-temperature during April adjusts from March's wintry 40.5°F (4.7°C) to a frosty 48.7°F (9.3°C). During the month of April, Rockport identifies an average nighttime low-temperature of 40.8°F (4.9°C), slightly lower than its daytime counterpart.Humidity
The average relative humidity in April is 76%.Rainfall
In Rockport, in April, it is raining for 15 days, with typically 2.95" (75mm) of accumulated precipitation. In Rockport, during the entire year, the rain falls for 150.9 days and collects up to 30.75" (781mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows. During 1.1 snowfall days, in April, Rockport aggregates 0.51" (13mm) of snow. Throughout the year, there are 27.4 snowfall days, and 9.17" (233mm) of snow is accumulated.Ocean temperature
In April, the average ocean temperature is 43°F (6.1°C).Note: Immersing oneself in 43°F (6.1°C) at sub14°F (-10°C) temperatures is a recipe for harsh cold shock and quickened breathing unless adequately equipped.
Daylight
The average length of the day in April is 13h and 25min.On the first day of the month, sunrise is at 6:23 am and sunset at 7:08 pm. On the last day of April, sunrise is at 5:37 am and sunset at 7:42 pm EDT.
Sunshine
In Rockport, the average sunshine in April is 8.4h.UV index
In April, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 3 during April translates into the following guidance:
Ensure safety - Recommendations to avert sunburn are presented. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Rockport, MA
- Average high temperature in April: 48.7°F
The warmest month (with the highest average high temperature) is August (73°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in April: 40.8°F
The month with the highest average low temperature is August (65.5°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in April
Rockport, MA
- Average pressure in April: 29.97"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in April
Rockport, MA
- Average wind speed in April: 12.2mph
The windiest month (with the highest average wind speed) is January (15.2mph).
The calmest months (with the lowest average wind speed) are July and August (8.9mph).
Average humidity in April
Rockport, MA
- Average humidity in April: 76%
The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is November (73%).
Average rainfall in April
Rockport, MA
- Average rainfall in April: 2.95"
The wettest month (with the highest rainfall) is December (3.23").
The driest month (with the least rainfall) is September (1.73").
Average rainfall days in April
Rockport, MA
- Average rainfall days in April: 15 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (8.2 days).
Average snowfall in April
Rockport, MA
- Average snowfall in April: 0.51"
The month with the highest snowfall is February (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Rockport, MA
- Average snowfall days in April: 1.1 days
The month with the highest number of snowfall days is January (7.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average sea temperature in April
Rockport, MA
- Average sea temperature in April: 43°F
The best month for swimming (with the highest average sea temperature) is August (66.4°F).
The coldest month (with the lowest average sea temperature) is March (38.8°F).
Average daylight in April /
Average sunshine in April
Rockport, MA
- Average daylight in April: 13h and 24min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in April: 8h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in April
Rockport, MA
- Average sunshine days in April: 13.7 days
The months with the most sunshine days are September and November (16.7 days).
The month with the least sunshine days is February (13.1 days).
Average UV index in April
Rockport, MA
- Average UV index in April: 3
The months with the highest UV index are 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
Rockport, MA
- Average cloud cover in April: 45
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in April
Rockport, MA
- 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).
