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
As April sets, the average high-temperature shows an increase, moving up from a cool 52.3°F (11.3°C) in March to an enjoyable 64.9°F (18.3°C). Nighttime temperature in Potomac lowers to an average of 46°F (7.8°C) in April.Humidity
In April, the average relative humidity in Potomac, Maryland, is 71%.Rainfall
In Potomac, during April, the rain falls for 14.8 days and regularly aggregates up to 2.56" (65mm) of precipitation. Throughout the year, in Potomac, there are 156.5 rainfall days, and 30.71" (780mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows in Potomac. During 0.2 snowfall days, in April, Potomac aggregates 0.31" (8mm) of snow. Throughout the year, there are 15.5 snowfall days, and 10.24" (260mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 15min.On the first day of April, sunrise is at 6:52 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 8:01 pm EDT.
Sunshine
The average sunshine in April in Potomac is 8.9h.UV index
The average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In April, the maximum UV index of 4 suggests these recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Stay sun-safe with clothing that is both closely woven and worn loosely. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Frequently asked questions
What is the average April temperature in Potomac?
What is the average humidity in April in Potomac?
How many days does it rain in April in Potomac?
What is the last month it snows in Potomac?
How many hours of daylight does Potomac have in April?
When is the sunrise / sunset in April in Potomac?
How long on average sun shines in April in Potomac?
How high is the UV index in April in Potomac?
Average temperature in April
Potomac, MD
- Average high temperature in April: 64.9°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (39.4°F).
- Average low temperature in April: 46°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure in April
Potomac, 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 (29.95"Hg).
Average wind speed in April
Potomac, MD
- Average wind speed in April: 7.7mph
The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in April
Potomac, MD
- Average humidity in April: 71%
The months with the highest relative humidity are October and December (76%).
The month with the lowest relative humidity is July (69%).
Average rainfall in April
Potomac, MD
- Average rainfall in April: 2.56"
The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is February (1.93").
Average rainfall days in April
Potomac, MD
- Average rainfall days in April: 14.8 days
The month with the highest number of rainy days is August (17.3 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in April
Potomac, MD
- Average snowfall in April: 0.31"
The month with the highest snowfall is March (3.03").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Potomac, MD
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is February (4.8 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
Potomac, 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 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in April
Potomac, MD
- Average sunshine days in April: 13.4 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in April
Potomac, 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, November and December (UV index 2).
Average cloud cover in April
Potomac, MD
- Average cloud cover in April: 42
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in April
Potomac, MD
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Potomac, Maryland, USA
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