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
April's arrival signals a subtle increase in average high-temperatures, moving from March's wintry 41°F (5°C) to a frosty 46.9°F (8.3°C). Maintaining close parity with daytime warmth, the average nocturnal temperature during April stays at a wintry 42.4°F (5.8°C).Humidity
The average relative humidity in April is 80%.Rainfall
In Harwich, in April, during 13.1 rainfall days, 2.05" (52mm) of precipitation is typically accumulated. Throughout the year, there are 142.4 rainfall days, and 22.09" (561mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows. During 0.8 snowfall days, in April, Harwich aggregates 0.04" (1mm) of snow. In Harwich, during the entire year, snow falls for 20.8 days and aggregates up to 4.37" (111mm) of snow.Daylight
The average length of the day in April is 13h and 22min.On the first day of April, sunrise is at 6:21 am and sunset at 7:06 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 7:37 pm EDT.
Sunshine
In Harwich, the average sunshine in April is 8.3h.UV index
In April, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In April, the UV index of 3 transforms into the following advice:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Caution! The reflection of snow 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 the temperatures in April?
What is the average humidity in April?
How many days does it rain in April?
What is the last month it snows?
How many hours of daylight does Harwich have in April?
What time are sunrise and sunset in April?
How many hours of sunshine does Harwich have in April?
How high is the UV index in April in Harwich?
Average temperature in April
Harwich, MA
- Average high temperature in April: 46.9°F
The warmest month (with the highest average high temperature) is August (71.6°F).
The months with the lowest average high temperature are January and February (39°F).
- Average low temperature in April: 42.4°F
The month with the highest average low temperature is August (68.2°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).
Average pressure in April
Harwich, MA
- Average pressure in April: 29.98"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in April
Harwich, MA
- Average wind speed in April: 15.2mph
The windiest month (with the highest average wind speed) is January (18mph).
The calmest month (with the lowest average wind speed) is August (11.4mph).
Average humidity in April
Harwich, MA
- Average humidity in April: 80%
The months with the highest relative humidity are June and July (85%).
The month with the lowest relative humidity is November (74%).
Average rainfall in April
Harwich, MA
- Average rainfall in April: 2.05"
The wettest month (with the highest rainfall) is October (2.83").
The driest month (with the least rainfall) is November (1.46").
Average rainfall days in April
Harwich, MA
- Average rainfall days in April: 13.1 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in April
Harwich, MA
- Average snowfall in April: 0.04"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Harwich, MA
- Average snowfall days in April: 0.8 days
The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in April /
Average sunshine in April
Harwich, MA
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in April: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in April
Harwich, MA
- Average sunshine days in April: 14.5 days
The month with the most sunshine days is August (17.6 days).
The month with the least sunshine days is January (13 days).
Average UV index in April
Harwich, 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
Harwich, MA
- Average cloud cover in April: 46
The month with the most cloud cover is December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in April
Harwich, 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).
Harwich, Massachusetts, USA
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