March weather forecast
Fairfax, VA

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Weather in March

March marks the transition period in Fairfax, Virginia, from the lingering winter to the welcoming spring, with weather patterns reflecting both seasons. Interestingly, the median sunlight duration reaches 12 hours during March. The shifts in climatic variables suggest a gradual uptick in temperatures, a stable phase for relative humidity, and an increase in rainfall. The end of March carries with it the arrival of spring, preparing Fairfax for warmer conditions in April.

Temperature

In Fairfax, the average high-temperature in March slightly rises, from a frosty 44.4°F (6.9°C) in February, to a cool 52.7°F (11.5°C). The average low-temperature, in March, is a wintry 36.9°F (2.7°C).

Humidity

In Fairfax, the average relative humidity in March is 73%.

Rainfall

In Fairfax, during March, the rain falls for 13.8 days and regularly aggregates up to 2.44" (62mm) of precipitation. In Fairfax, during the entire year, the rain falls for 162 days and collects up to 31.65" (804mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall in Fairfax. In March, it is snowing for 3.3 days. Throughout March, 2.95" (75mm) of snow is accumulated. In Fairfax, during the entire year, snow falls for 18 days and aggregates up to 11.18" (284mm) of snow.

Daylight

In March, the average length of the day is 11h and 59min.
On the first day of March in Fairfax, sunrise is at 6:40 am and sunset at 6:02 pm EST. On the last day of the month, sunrise is at 6:54 am and sunset at 7:32 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 6.9h.

UV index

The average daily maximum UV index in March is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In March, an average UV index of 3 transforms into the following instructions:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
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Frequently asked questions

What is the usual temperature for Fairfax in March?

In March, the average high-temperature and low-temperature in Fairfax, Virginia, are 52.7°F (11.5°C) and 36.9°F (2.7°C) respectively.

What is the average humidity in March in Fairfax?

In March, the average relative humidity in Fairfax is 73%.

How much does it rain in Fairfax in March?

In Fairfax, Virginia, in March, during 13.8 rainfall days, 2.44" (62mm) of precipitation is typically accumulated.

How many days does it snow in March in Fairfax?

In March, it is snowing for 3.3 days. Throughout March, 2.95" (75mm) of snow is accumulated.

What is the average length of the day in March in Fairfax?

In March, the average day length in Fairfax is 11h and 59min.

What time are sunrise and sunset in March in Fairfax?

In March, on the first day of the month, sunrise is at 6:40 am and sunset at 6:02 pm EST. On the last day of the month, sunrise is at 6:54 am and sunset at 7:32 pm EDT.

When does Daylight Saving Time (DST) start in March in Fairfax?

On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Fairfax, and the time zone changes from EST to EDT. DST ends Sunday, November 3. 2024, at 2:00 am.

How many hours of sunshine does Fairfax have in March?

In Fairfax, Virginia, the average sunshine duration in March is 6.9h.

How high is the UV index in March in Fairfax?

The average daily maximum UV index in March in Fairfax, Virginia, is 3. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in March
Fairfax, VA

Average temperature in March - Fairfax, VA
  • Average high temperature in March: 52.7°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.5°F).

  • Average low temperature in March: 36.9°F

The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

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Average pressure in March
Fairfax, VA

Average pressure in March - Fairfax, VA
  • 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).

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Average wind speed in March
Fairfax, VA

Average wind speed in March - Fairfax, VA
  • Average wind speed in March: 7.4mph

The windiest month (with the highest average wind speed) is March (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in March
Fairfax, VA

Average humidity in March - Fairfax, VA
  • Average humidity in March: 73%

The months with the highest relative humidity are October and December (77%).
The month with the lowest relative humidity is July (71%).

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Average rainfall in March
Fairfax, VA

Average rainfall in March - Fairfax, VA
  • Average rainfall in March: 2.44"

The wettest month (with the highest rainfall) is August (3.78").
The driest month (with the least rainfall) is September (2.01").

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Average rainfall days in March
Fairfax, VA

Average rainfall days in March - Fairfax, VA
  • Average rainfall days in March: 13.8 days

The months with the highest number of rainy days are May and August (17.3 days).
The month with the least rainy days is November (9.1 days).

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Average snowfall in March
Fairfax, VA

Average snowfall in March - Fairfax, VA
  • Average snowfall in March: 2.95"

The month with the highest snowfall is January (3.54").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in March
Fairfax, VA

Average snowfall days in March - Fairfax, VA
  • Average snowfall days in March: 3.3 days

The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in March /
Average sunshine in March
Fairfax, VA

Average daylight in March / Average sunshine in March - Fairfax, VA
  • Average daylight in March: 12h and 0min

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 March: 6h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 12min).

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Average sunshine days in March
Fairfax, VA

Average sunshine days in March - Fairfax, VA
  • Average sunshine days in March: 14.5 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.3 days).

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Average UV index in March
Fairfax, VA

Average UV index in March - Fairfax, VA
  • 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).

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Average cloud cover in March
Fairfax, VA

Average cloud cover in March - Fairfax, VA
  • Average cloud cover in March: 46

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in March
Fairfax, VA

Average visibility in March - Fairfax, VA
  • 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).

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Fairfax, Virginia, USA

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