Annapolis
Maryland, USA
Long-term weather forecast
Long-term weather forecast

March weather forecast and climate
Annapolis, MD

A view of Chesapeake Bay at dusk, in Annapolis, Maryland, with a distant view of the US Naval Academy chapel dome
A view of Chesapeake Bay at dusk, in Annapolis, Maryland, with a distant view of the US Naval Academy chapel dome
March, the first month of the spring, in Annapolis, is a fresh month, with temperature in the range of an average high of 50.5°F (10.3°C) and an average low of 38.5°F (3.6°C).

Temperature

In March, the average high-temperature slightly increases, from a frosty 43°F (6.1°C) in February, to a fresh 50.5°F (10.3°C). The average low-temperature, in Annapolis, 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.

Rainfall

In Annapolis, during 9.5 rainfall days, 0.67" (17mm) of precipitation is typically accumulated. In Annapolis, during the entire year, the rain falls for 120.4 days and collects up to 10.47" (266mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. March is the last month it regularly snows. 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, the average seawater temperature in March is 46°F (7.8°C).
Note: 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.

Daylight

In Annapolis, the average length of the day is 12h.

Sunshine

The average sunshine in Annapolis is 6.9h.

UV index

The average daily maximum UV index in Annapolis is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from the exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 3 in March interpret into the following advice:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.

What is the temperature in March in Annapolis?

The average high-temperature, in March, in Annapolis, is 50.5°F (10.3°C), while 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?

In March, the average relative humidity in Annapolis, Maryland, is 72%.

How many days does it rain in March in Annapolis?

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 in Annapolis, Maryland. During 1.5 snowfall days, in March, Annapolis aggregates 0.2" (5mm) of snow.

How cold is the water in March in Annapolis?

In Annapolis, the average seawater temperature in March is 46°F (7.8°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 55.4°F (13°C) is not comfortable.

How many hours of daylight does Annapolis have in March?

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

How many hours of sunshine does Annapolis have in March?

In March, the average sunshine in Annapolis 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 of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV rays.
Average temperature in March - Annapolis, MD
  • Average high temperature in March: 10.3°C

The warmest month (with the highest average high temperature) is July (29.3°C).
The month with the lowest average high temperature is January (4.6°C).

  • Average low temperature in March: 3.6°C

The month with the highest average low temperature is July (22.2°C).
The coldest month (with the lowest average low temperature) is January (-1.2°C).

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: 17mm

The wettest month (with the highest rainfall) is August (43mm).
The driest month (with the lowest rainfall) is January (12mm).

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 lowest number of rainy days is November (5.3 days).

Average snowfall in March - Annapolis, MD
  • Average snowfall in March: 5mm

The month with the highest snowfall is January (17mm).
Months with the lowest snowfall are April, May, June, July, August, September and October (0mm).

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 lowest number of snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in March - Annapolis, MD
  • Average sea temperature in March: 7.8°C

The best month for swimming (with the highest average sea temperature) is August (25.4°C).
The coldest month (with the lowest average sea temperature) is February (7.3°C).

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 shortest days is December (Average daylight: 9.5h).

  • Average sunshine in March: 6.9h

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

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).