April weather forecastPotomac Heights, MD
April
Weather in April
April is a refreshing spring month in Potomac Heights, Maryland, with an average temperature fluctuating between 65.5°F (18.6°C) and 47.1°F (8.4°C).Temperature
Noticing a change, the average high-temperature during April moves from March's cool 53.2°F (11.8°C) to an enjoyable 65.5°F (18.6°C). Potomac Heights reports an average nighttime low-temperature of 47.1°F (8.4°C) in April.Humidity
The months with the lowest humidity in Potomac Heights are April and July, with an average relative humidity of 72%.Rainfall
In April, the rain falls for 15.5 days. Throughout April, 2.83" (72mm) of precipitation is accumulated. Throughout the year, there are 164.3 rainfall days, and 32.32" (821mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April and December. April is the last month it regularly snows. During 0.1 snowfall days, in April, Potomac Heights aggregates 0.08" (2mm) of snow. Throughout the year, there are 14.6 snowfall days, and 7.8" (198mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 14min.On the first day of the month, sunrise is at 6:52 am and sunset at 7:32 pm. On the last day of April, sunrise is at 6:11 am and sunset at 7:59 pm EDT.
Sunshine
In Potomac Heights, Maryland, the average sunshine in April is 9h.UV index
In April, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In April, the maximum UV index of 4 suggests this advice:
Put precautions into practice - Protective measures against sun-induced damage are advised. Minimize direct exposure to the Sun during midday when its radiation is at its peak. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Potomac Heights, MD
- Average high temperature in April: 65.5°F
The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (41°F).
- Average low temperature in April: 47.1°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 (27.3°F).
Average pressure in April
Potomac Heights, 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 Heights, MD
- Average wind speed in April: 7.3mph
The windiest months (with the highest average wind speed) are March and April (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in April
Potomac Heights, MD
- Average humidity in April: 72%
The months with the highest relative humidity are May, October and December (77%).
The months with the lowest relative humidity are April and July (72%).
Average rainfall in April
Potomac Heights, MD
- Average rainfall in April: 2.83"
The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (2.01").
Average rainfall days in April
Potomac Heights, MD
- Average rainfall days in April: 15.5 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in April
Potomac Heights, MD
- Average snowfall in April: 0.08"
The month with the highest snowfall is January (2.44").
The months with the least snowfall are May, June, July, August, September, October and November (0").
Average snowfall days in April
Potomac Heights, MD
- Average snowfall days in April: 0.1 days
The month with the highest number of snowfall days is January (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 Heights, MD
- Average daylight in April: 13h and 12min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in April: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are February and December (Average sunshine: 5h and 12min).
Average sunshine days in April
Potomac Heights, MD
- Average sunshine days in April: 12.3 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in April
Potomac Heights, 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
Potomac Heights, MD
- Average cloud cover in April: 41
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in April
Potomac Heights, 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).
