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 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
Herndon perceives a slight temperature ascent during March, with average high-temperatures adjusting from a chilly 43.9°F (6.6°C) in February to a cool 52.5°F (11.4°C). Herndon records an average low-temperature of 35.6°F (2°C) throughout the month of March.Humidity
In March, the average relative humidity is 74%.Rainfall
In Herndon, Virginia, in March, during 13 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. In Herndon, during the entire year, the rain falls for 158.1 days and collects up to 31.46" (799mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Herndon, during March, snow falls for 3 days and regularly aggregates up to 3.11" (79mm) of snow. In Herndon, during the entire year, snow falls for 16.7 days and aggregates up to 12.28" (312mm) of snow.Daylight
In March, the average length of the day is 11h and 59min.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 March, 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
In March, the average sunshine is 6.6h.UV index
In March, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: An average maximum UV index of 3 in March leads to these recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are March temperatures?
What is the average humidity in March?
How many days does it rain in March in Herndon?
How much does it snow in Herndon in March?
What is the average length of the day in March?
What time are sunrise and sunset in March?
When does Daylight Saving Time (DST) start in March?
How long on average sun shines in March?
How high is the UV index in March?
Average temperature in March
Herndon, VA
- Average high temperature in March: 52.5°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in March: 35.6°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure in March
Herndon, 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).
Average wind speed in March
Herndon, VA
- Average wind speed in March: 7.5mph
The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in March
Herndon, VA
- Average humidity in March: 74%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (70%).
Average rainfall in March
Herndon, 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 (1.93").
Average rainfall days in March
Herndon, VA
- Average rainfall days in March: 13 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in March
Herndon, VA
- Average snowfall in March: 3.11"
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").
Average snowfall days in March
Herndon, VA
- Average snowfall days in March: 3 days
The months with the highest number of snowfall days are January and February (5.1 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
Herndon, VA
- 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 0min).
Average sunshine days in March
Herndon, VA
- Average sunshine days in March: 15.3 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in March
Herndon, 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).
Average cloud cover in March
Herndon, VA
- Average cloud cover in March: 48
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in March
Herndon, 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).
Herndon, Virginia, USA
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