March weather forecast and climate
Annapolis, MD

The Chesapeake Bay at dusk, in Annapolis, Maryland, with a distant view of the US Naval Academy chapel dome
The Chesapeake Bay at dusk, in Annapolis, Maryland, with a distant view of the US Naval Academy chapel dome
The first month of the spring, March, is a cool month in Annapolis, Maryland, with average temperature ranging between max 50.5°F (10.3°C) and min 38.5°F (3.6°C).

Temperature

In Annapolis, the average high-temperature in March slightly increases, from a chilly 43°F (6.1°C) in February, to a cool 50.5°F (10.3°C). In March, in Annapolis, the average low-temperature is 38.5°F (3.6°C).

Humidity

January, March, April and November, with an average relative humidity of 72%, are the least humid months in Annapolis.

Rainfall

In Annapolis, it is raining for 9.5 days, with typically 0.67" (17mm) of accumulated precipitation. Throughout the year, in Annapolis, there are 120.4 rainfall days, and 10.47" (266mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Annapolis, Maryland, are January through March, November and December. March is the last month it regularly snows in Annapolis. During 1.5 snowfall days, in March, Annapolis aggregates 0.2" (5mm) of snow. In Annapolis, during the entire year, snow falls for 8.3 days, and aggregates up to 1.22" (31mm) of snow.

Ocean temperature

In Annapolis, in March, the average water temperature is 46°F (7.8°C).
Note: Swimming in 46°F (7.8°C) is considered life-threatening. Even a few minutes in 55.4°F (13°C) water is uncomfortable, and swimming below 50°F (10°C) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

The average length of the day in March is 12h.

Sunshine

The average sunshine in March is 6.9h.

UV index

The average daily maximum UV index in Annapolis, Maryland, is 3. A UV Index reading of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 3 in March interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in March in Annapolis?

In Annapolis, in March, the average high-temperature is 50.5°F (10.3°C), and the average low-temperature is 38.5°F (3.6°C).

What are the least humid months in Annapolis?

Months with the lowest humidity in Annapolis are January, March, April and November, with an average relative humidity of 72%.

What is the average humidity in March in Annapolis?

The average relative humidity in March in Annapolis is 72%.

How much does it rain in Annapolis in March?

In Annapolis, Maryland, in March, during 9.5 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.

What is the last month it snows in Annapolis?

March is the last month it regularly snows. During 1.5 snowfall days, in March, Annapolis aggregates 0.2" (5mm) of snow.

What is the ocean temperature in March in Annapolis?

In Annapolis, in March, the average water temperature is 46°F (7.8°C). Swimming in 46°F (7.8°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.

How many hours of daylight does Annapolis have in March?

The average length of the day in March in Annapolis, Maryland, is 12h.

How many hours of sunshine does Annapolis have in March?

In March, the average sunshine in Annapolis, Maryland, is 6.9h.

What is the UV index reading in March in Annapolis?

In March, the average daily maximum UV index in Annapolis is 3. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to the UV radiation.
Average temperature in March - Annapolis, MD
  • Average high temperature in March: 50.5°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 (40.3°F).

  • Average low temperature in March: 38.5°F

The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

Average pressure in March - Annapolis, MD
  • Average pressure in March: 30.08"

The month with the highest atmospheric pressure is November (30.13").
The month with the lowest atmospheric pressure is June (29.94").

Average wind speed in March - Annapolis, MD
  • Average wind speed in March: 9.9mph

The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

Average humidity in March - Annapolis, MD
  • Average humidity in March: 72%

The month with the highest relative humidity is May (78%).
Months with the lowest relative humidity are January, March, April and November (72%).

Average rainfall in March - Annapolis, MD
  • Average rainfall in March: 0.67"

The wettest month (with the highest rainfall) is August (1.69").
The driest month (with the least rainfall) is January (0.47").

Average rainfall days in March - Annapolis, MD
  • Average rainfall days in March: 9.5 days

Months with the highest number of rainy days are July and August (14.3 days).
The month with the least rainy days is November (5.3 days).

Average snowfall in March - Annapolis, MD
  • Average snowfall in March: 0.2"

The month with the highest snowfall is January (0.67").
Months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in March - Annapolis, MD
  • Average snowfall days in March: 1.5 days

The month with the highest number of snowfall days is February (2.5 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in March - Annapolis, MD
  • Average sea temperature in March: 46°F

The best month for swimming (with the highest average sea temperature) is August (77.8°F).
The coldest month (with the lowest average sea temperature) is February (45.1°F).

Average daylight in March / Average sunshine in March - Annapolis, MD
  • Average daylight in March: 12h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in March: 6.9h

The month with the most sunshine is July (Average sunshine: 10.8h).
The month with the least sunshine is February (Average sunshine: 5h).

Average sunshine days in March - Annapolis, MD
  • Average sunshine days in March: 19.8 days

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is August (13.8 days).

Average UV index in March - Annapolis, MD
  • Average UV index in March: 3

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in March - Annapolis, MD
  • Average cloud cover in March: 45

Months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in March - Annapolis, MD
  • Average visibility in March: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).