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
The start of April brings a rise in the average high-temperature, moving from a cool 50.7°F (10.4°C) in March to a refreshing 62.8°F (17.1°C). In Herald Harbor, April's nights observe an average temperature dip to a chilly 47.5°F (8.6°C).Humidity
January, March, April and November, with an average relative humidity of 72%, are the least humid months.Rainfall
In Herald Harbor, Maryland, during April, the rain falls for 15.7 days and regularly aggregates up to 2.6" (66mm) of precipitation. In Herald Harbor, during the entire year, the rain falls for 155.7 days and collects up to 31.22" (793mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. April is the last month it regularly snows. During 0.1 snowfall days, in April, Herald Harbor aggregates 0.08" (2mm) of snow. In Herald Harbor, Maryland, during the entire year, snow falls for 14 days and aggregates up to 6.14" (156mm) of snow.Ocean temperature
In Herald Harbor, the average seawater temperature in April is 50.5°F (10.3°C).Note: One needs to be cautious in 50.5°F (10.3°C) waters. 55.4°F (13°C) is already forbidding, but sub14°F (-10°C) can seriously disrupt your breathing and lead to a frigid shock, considering one's well-being.
Daylight
The average length of the day in April is 13h and 15min.On the first day of April, sunrise is at 6:49 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 7:58 pm EDT.
Sunshine
The average sunshine in April is 8.8h.UV index
The average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high daily UV index of 4 during April translates into the following directions:
Guard yourself - Precautionary measures against sun damage are advocated. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April?
What is the least humid month?
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?
How many hours of daylight does Herald Harbor have in April?
What time are sunrise and sunset in April in Herald Harbor?
How long on average sun shines in April?
What is the UV index reading in April?
Average temperature in April
Herald Harbor, MD
- Average high temperature in April: 62.8°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (39.6°F).
- Average low temperature in April: 47.5°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in April
Herald Harbor, MD
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Herald Harbor, MD
- Average wind speed in April: 9.1mph
The windiest month (with the highest average wind speed) is March (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in April
Herald Harbor, MD
- Average humidity in April: 72%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March, April and November (72%).
Average rainfall in April
Herald Harbor, MD
- Average rainfall in April: 2.6"
The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in April
Herald Harbor, MD
- Average rainfall days in April: 15.7 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in April
Herald Harbor, MD
- Average snowfall in April: 0.08"
The month with the highest snowfall is January (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Herald Harbor, MD
- Average snowfall days in April: 0.1 days
The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in April
Herald Harbor, MD
- Average sea temperature in April: 50.5°F
The best month for swimming (with the highest average sea temperature) is August (77.5°F).
The coldest month (with the lowest average sea temperature) is February (44.5°F).
Average daylight in April /
Average sunshine in April
Herald Harbor, MD
- Average daylight in April: 13h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in April: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in April
Herald Harbor, MD
- Average sunshine days in April: 12.8 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in April
Herald Harbor, MD
- Average UV index in April: 4
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in April
Herald Harbor, MD
- Average cloud cover in April: 41
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in April
Herald Harbor, MD
- 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).
Herald Harbor, Maryland, USA
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