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 witnesses an increase in the average high-temperature, moving from a fresh 50°F (10°C) in March to a refreshing 61.7°F (16.5°C). The average temperature during April nights is registered at a frosty 46.9°F (8.3°C).Humidity
In April, the average relative humidity is 74%.Rainfall
In Rock Hall, during April, the rain falls for 11.3 days and regularly aggregates up to 0.98" (25mm) of precipitation. In Rock Hall, during the entire year, the rain falls for 120.1 days and collects up to 12.87" (327mm) of precipitation.Snowfall
January through April and December are months with snowfall. April is the last month it regularly snows in Rock Hall. During 0.1 snowfall days, in April, Rock Hall aggregates 0.04" (1mm) of snow. Throughout the year, there are 9.8 snowfall days, and 2.01" (51mm) of snow is accumulated.Ocean temperature
In April, the average ocean temperature is 50.2°F (10.1°C).Note: If planning to swim in 50.2°F (10.1°C) under 50°F (10°C), wear a protective suit. Neglecting this advice might cause immediate cold shock and troubled breathing. A splash around 55.4°F (13°C) is not much warmer.
Daylight
The average length of the day in April is 13h and 16min.On the first day of the month, sunrise is at 6:48 am and sunset at 7:29 pm. On the last day of April, sunrise is at 6:06 am and sunset at 7:57 pm EDT.
Sunshine
In April, the average sunshine is 8.9h.UV index
The average daily maximum UV index in April is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In April, the maximum UV index of 4 transforms into these recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures?
What is the average humidity in April?
How many days does it rain in April?
What is the last month it snows?
What is the water temperature in April?
How many hours of daylight does Rock Hall have in April?
What time are sunrise and sunset in April?
How many hours of sunshine does Rock Hall have in April?
How high is the UV index in April?
Average temperature in April
Rock Hall, MD
- Average high temperature in April: 61.7°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (39.2°F).
- Average low temperature in April: 46.9°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in April
Rock Hall, MD
- Average pressure in April: 29.99"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in April
Rock Hall, MD
- Average wind speed in April: 9.6mph
The windiest months (with the highest average wind speed) are January, February and March (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in April
Rock Hall, MD
- Average humidity in April: 74%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is November (73%).
Average rainfall in April
Rock Hall, MD
- Average rainfall in April: 0.98"
The wettest months (with the highest rainfall) are July and August (1.81").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in April
Rock Hall, MD
- Average rainfall days in April: 11.3 days
The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is November (5.6 days).
Average snowfall in April
Rock Hall, MD
- Average snowfall in April: 0.04"
The month with the highest snowfall is January (0.83").
The months with the least snowfall are May, June, July, August, September, October and November (0").
Average snowfall days in April
Rock Hall, MD
- Average snowfall days in April: 0.1 days
The month with the highest number of snowfall days is January (3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in April
Rock Hall, MD
- Average sea temperature in April: 50.1°F
The best month for swimming (with the highest average sea temperature) is August (77.2°F).
The coldest month (with the lowest average sea temperature) is February (43.7°F).
Average daylight in April /
Average sunshine in April
Rock Hall, 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
Rock Hall, MD
- Average sunshine days in April: 17.3 days
The months with the most sunshine days are January and November (21.9 days).
The month with the least sunshine days is July (14.1 days).
Average UV index in April
Rock Hall, 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, February and December (UV index 2).
Average cloud cover in April
Rock Hall, MD
- Average cloud cover in April: 40
The months with the most cloud cover are February, March and December (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in April
Rock Hall, 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).
Rock Hall, Maryland, USA
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