Contents
- Weather in March
- Frequently asked questions
- Average temperature in March
- Average pressure in March
- Average wind speed in March
- Average humidity in March
- Average rainfall in March
- Average rainfall days in March
- Average snowfall in March
- Average snowfall days in March
- Average sea temperature in March
- Average daylight in March
- Average sunshine in March
- Average sunshine days in March
- Average UV index in March
- Average cloud cover in March
- Average visibility in March
Weather in March
Temperature
Charlestown experiences a minor temperature shift with the start of March, with average high-temperatures moving from a cold 41.7°F (5.4°C) in February to a cool 50°F (10°C). Charlestown's average low-temperature is measured at an icy 35.1°F (1.7°C) during March.Humidity
In March, the average relative humidity is 75%.Rainfall
In Charlestown, during March, the rain falls for 12.3 days and regularly aggregates up to 2.17" (55mm) of precipitation. Throughout the year, there are 150.3 rainfall days, and 29.25" (743mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, May, November and December. March is the last month it regularly snows. During 2.8 snowfall days, in March, Charlestown aggregates 1.77" (45mm) of snow. Throughout the year, there are 13.1 snowfall days, and 6.89" (175mm) of snow is accumulated.Ocean temperature
In March, the average ocean temperature is 42.3°F (5.7°C).Note: Swimming in 42.3°F (5.7°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.
Daylight
The average length of the day in March is 11h and 59min.On the first day of the month, sunrise is at 6:35 am and sunset at 5:56 pm EST. On the last day of March, sunrise is at 6:48 am and sunset at 7:27 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
The average sunshine in March is 6.5h.UV index
In Charlestown, the average daily maximum UV index in March is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 3 in March interprets into the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Charlestown in March?
What is the average humidity in March in Charlestown?
How much does it rain in March?
What is the last month it snows?
What is the water temperature in March?
How many hours of daylight does Charlestown have in March?
When are sunrise and sunset in March in Charlestown?
When does Daylight Saving Time (DST) start in March?
How long on average sun shines in March?
What is the UV index intensity in March?
Average temperature in March
Charlestown, MD
- Average high temperature in March: 50°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (37.9°F).
- Average low temperature in March: 35.1°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (26.1°F).
Average pressure in March
Charlestown, MD
- Average pressure in March: 30.07"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 March
Charlestown, MD
- Average wind speed in March: 8.9mph
The windiest months (with the highest average wind speed) are February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in March
Charlestown, MD
- Average humidity in March: 75%
The months with the highest relative humidity are May and June (79%).
The month with the lowest relative humidity is April (74%).
Average rainfall in March
Charlestown, MD
- Average rainfall in March: 2.17"
The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days in March
Charlestown, MD
- Average rainfall days in March: 12.3 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in March
Charlestown, MD
- Average snowfall in March: 1.77"
The month with the highest snowfall is January (2.24").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in March
Charlestown, MD
- Average snowfall days in March: 2.8 days
The month with the highest number of snowfall days is January (4.4 days).
The months with the least snowfall days are April, June, July, August, September and October (0 days).
Average sea temperature in March
Charlestown, MD
- Average sea temperature in March: 42.2°F
The best month for swimming (with the highest average sea temperature) is August (76.3°F).
The coldest month (with the lowest average sea temperature) is February (40.9°F).
Average daylight in March /
Average sunshine in March
Charlestown, 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 24min).
- Average sunshine in March: 6h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in March
Charlestown, MD
- Average sunshine days in March: 15.7 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is July (11.6 days).
Average UV index in March
Charlestown, 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
Charlestown, MD
- Average cloud cover in March: 46
The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in March
Charlestown, MD
- Average visibility in March: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Charlestown, Maryland, USA
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