March weather forecastPotomac, MD
March
Weather in March
The first month of the spring, March, is a cool month in Potomac, Maryland, with an average temperature ranging between max 52.3°F (11.3°C) and min 36.1°F (2.3°C).Temperature
March brings a slight elevation in the average high-temperature, transitioning from February's frosty 43.9°F (6.6°C) to a fresh 52.3°F (11.3°C). Nighttime temperatures hover around an average low of 36.1°F (2.3°C) in March.Humidity
In Potomac, the average relative humidity in March is 73%.Rainfall
In March, the rain falls for 13.5 days. Throughout March, 2.28" (58mm) of precipitation is accumulated. In Potomac, during the entire year, the rain falls for 156.5 days and collects up to 30.71" (780mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. March is the month with the most snowfall. Snow falls for 3.5 days and accumulates 3.03" (77mm) of snow.Daylight
In Potomac, Maryland, the average length of the day in March is 11h and 59min.On the first day of March, sunrise is at 6:40 am and sunset at 6:01 pm EST. On the last day of the month, sunrise is at 6:53 am and sunset at 7:31 pm EDT.
Note: On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time lasts until Sunday, November 3. 2024, at 2:00 am; consequently, the time zone reverts from EDT to EST.
Sunshine
In Potomac, the average sunshine in March is 6.8h.UV index
In March, the average daily maximum UV index in Potomac is 3. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In March, an average UV index of 3 transforms into the following instructions:
Ensure safety - Sun damage prevention is strongly urged. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in March
Potomac, MD
- Average high temperature in March: 52.3°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 March: 36.1°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 (26.4°F).
Average pressure in March
Potomac, MD
- Average pressure in March: 30.08"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 March
Potomac, MD
- Average wind speed in March: 7.8mph
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 March
Potomac, MD
- Average humidity in March: 73%
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 March
Potomac, MD
- Average rainfall in March: 2.28"
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 March
Potomac, MD
- Average rainfall days in March: 13.5 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 March
Potomac, MD
- Average snowfall in March: 3.03"
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 March
Potomac, MD
- Average snowfall days in March: 3.5 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 March /
Average sunshine in March
Potomac, MD
- Average daylight in March: 12h and 0min
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 March: 6h and 48min
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 March
Potomac, MD
- Average sunshine days in March: 14.7 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 March
Potomac, MD
- Average UV index in March: 3
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 March
Potomac, MD
- Average cloud cover in March: 47
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 March
Potomac, MD
- Average visibility in March: 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).
