Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, like December, in Reston, Virginia, is another cold winter month, with an average temperature ranging between min 26.4°F (-3.1°C) and max 39.7°F (4.3°C). With an average high-temperature of 39.7°F (4.3°C) and an average low-temperature of 26.4°F (-3.1°C), January is the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Reston, is a frosty month, with an average temperature varying between 28.8°F (-1.8°C) and 43.9°F (6.6°C). In February, the average high-temperature is practically the same as in January - a frosty 43.9°F (6.6°C). Weather in February »
Weather in March
March, the first month of the spring in Reston, is a cool month, with temperature in the range of an average high of 52.5°F (11.4°C) and an average low of 36.1°F (2.3°C). In March, the average high-temperature slightly increases from a chilly 43.9°F (6.6°C) in February to a cool 52.5°F (11.4°C). Weather in March »
Weather in April
April is a comfortable spring month in Reston, Virginia, with temperature in the range of an average low of 45.9°F (7.7°C) and an average high of 64.9°F (18.3°C). In Reston, the average high-temperature in April rises from a cool 52.5°F (11.4°C) in March to an enjoyable 64.9°F (18.3°C). Weather in April »
Weather in May
May, the last month of the spring in Reston, is a moderately hot month, with an average temperature ranging between min 55.6°F (13.1°C) and max 74.8°F (23.8°C). In May, the average high-temperature rises from an enjoyable 64.9°F (18.3°C) in April to a warm 74.8°F (23.8°C). Weather in May »
Weather in June
June, the first month of the summer in Reston, is also a moderately hot month, with an average temperature fluctuating between 82.9°F (28.3°C) and 63.3°F (17.4°C). In Reston, the average high-temperature in June slightly increases from a warm 74.8°F (23.8°C) in May to a still moderately hot 82.9°F (28.3°C). Weather in June »
Weather in July
July is a hot summer month in Reston, Virginia, with an average temperature varying between 87.6°F (30.9°C) and 68.5°F (20.3°C). The warmest month is July, with an average high-temperature of 87.6°F (30.9°C) and an average low-temperature of 68.5°F (20.3°C). The average heat index in July is calculated to be a torrid 98.6°F (37°C). Weather in July »
Weather in August
August, the last month of the summer in Reston, is another warm month, with temperature in the range of an average low of 67.3°F (19.6°C) and an average high of 85.6°F (29.8°C). In Reston, the average high-temperature in August is almost the same as in July - a moderately hot 85.6°F (29.8°C). Weather in August »
Weather in September
September, the first month of the autumn in Reston, is still a warm month, with an average temperature fluctuating between 60.8°F (16°C) and 78.4°F (25.8°C). In September, the average high-temperature marginally drops from a warm 85.6°F (29.8°C) in August to a still moderately hot 78.4°F (25.8°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Reston, Virginia, with an average temperature varying between 66.2°F (19°C) and 49.6°F (9.8°C). In October, the average high-temperature decreases from a moderately hot 78.4°F (25.8°C) in September to an enjoyable 66.2°F (19°C). Weather in October »
Weather in November
November, the last month of the autumn in Reston, is also a fresh month, with an average temperature ranging between min 38.7°F (3.7°C) and max 53.4°F (11.9°C). In November, the average high-temperature decreases from an enjoyable 66.2°F (19°C) in October to a cool 53.4°F (11.9°C). Weather in November »
Weather in December
December, the first month of the winter in Reston, is also a frosty month, with an average temperature fluctuating between 45.3°F (7.4°C) and 32.7°F (0.4°C). In Reston, the average high-temperature in December slightly decreases from a fresh 53.4°F (11.9°C) in November to a frosty 45.3°F (7.4°C). Weather in December »
[Resources]FAQ
What is the coldest month in Reston?
January is the coldest month in Reston, Virginia, with an average high-temperature of 39.7°F (4.3°C) and an average low-temperature of 26.4°F (-3.1°C).
What is the driest month in Reston?
January is the month with the least rainfall in Reston. Rain falls for 9.4 days and accumulates 1.77" (45mm) of precipitation.
How much does it rain in Reston?
In Reston, during the entire year, the rain falls for 152.8 days and collects up to 27.64" (702mm) of precipitation.
When does it snow in Reston?
Months with snowfall in Reston are January through April, November and December.
What is the snowiest month in Reston?
January is the month with the most snowfall. Snow falls for 4.6 days and accumulates 2.28" (58mm) of snow.
How much does it snow in Reston?
Throughout the year, in Reston, there are 13.9 snowfall days, and 7.2" (183mm) of snow is accumulated.
What are the months with the least sunshine in Reston?
January, February and December, with an average of 5h of sunshine, are months with the least sunshine in Reston, Virginia.
What are the months with the lowest UV index in Reston?
The months with the lowest UV index in Reston are January, February, November and December, with an average maximum UV index of 2.
When is Daylight Saving Time (DST) in Reston?
On Sunday, March 12. 2023, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 5. 2023, at 2:00 am, and the time zone reverts from EDT to EST.
When it does not snow in Reston?
May through October are months without snowfall in Reston.
What is the month with the highest UV index in Reston?
May through August, with an average maximum UV index of 6, are months with the highest UV index.
When are the longest days in Reston?
The month with the longest days in Reston is June, with an average of 14h and 52min of daylight.
What is the warmest month in Reston?
July is the warmest month, with an average high-temperature of 87.6°F (30.9°C) and an average low-temperature of 68.5°F (20.3°C).
What is the least humid month in Reston?
The least humid month is July, with an average relative humidity of 69%.
What month has the most sunshine in Reston?
With an average of 10.7h of sunshine, July has the most sunshine of the year in Reston.
What is the rainiest month in Reston?
The month with the most rainfall in Reston, Virginia, is August, when the rain falls for 15.6 days and typically aggregates up to 3.39" (86mm) of precipitation.
What are the most humid months in Reston?
October and December, with an average relative humidity of 76%, are most humid months.
What is the month with the shortest days in Reston?
The month with the shortest days in Reston, Virginia, is December, with an average of 9h and 29min of daylight.
Average temperature
Reston, VA
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (39.7°F).
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure
Reston, VA
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.08"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.11"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
Reston, VA
- Average wind speed in January:
7.4mph - Average wind speed in February:
7.5mph - Average wind speed in March:
7.7mph - Average wind speed in April:
7.6mph - Average wind speed in May:
6.3mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
5mph - Average wind speed in August:
4.9mph - Average wind speed in September:
5.5mph - Average wind speed in October:
6.5mph - Average wind speed in November:
6.7mph - Average wind speed in December:
6.8mph
The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity
Reston, VA
The months with the highest relative humidity are October and December (76%).
The month with the lowest relative humidity is July (69%).
Average rainfall
Reston, VA
- Average rainfall in January:
1.77" - Average rainfall in February:
1.89" - Average rainfall in March:
2.13" - Average rainfall in April:
2.24" - Average rainfall in May:
2.76" - Average rainfall in June:
2.36"
- Average rainfall in July:
2.68" - Average rainfall in August:
3.39" - Average rainfall in September:
1.93" - Average rainfall in October:
2.28" - Average rainfall in November:
2.05" - Average rainfall in December:
2.17"
The wettest month (with the highest rainfall) is August (3.39").
The driest month (with the least rainfall) is January (1.77").
Average rainfall days
Reston, VA
- Average rainfall days in January:
9.4 days - Average rainfall days in February:
9.8 days - Average rainfall days in March:
13.4 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
16.3 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
15.1 days - Average rainfall days in August:
15.6 days - Average rainfall days in September:
12.5 days - Average rainfall days in October:
12 days - Average rainfall days in November:
9.3 days - Average rainfall days in December:
9.8 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is November (9.3 days).
Average snowfall
Reston, VA
The month with the highest snowfall is January (2.28").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Reston, VA
- Average snowfall days in January:
4.6 days - Average snowfall days in February:
4.4 days - Average snowfall days in March:
2.3 days - Average snowfall days in April:
0.1 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.3 days - Average snowfall days in December:
2.2 days
The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Reston, VA
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 3min
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 January:
5h and 0min - Average sunshine in February:
5h and 0min - Average sunshine in March:
6h and 4min - Average sunshine in April:
8h and 5min - Average sunshine in May:
8h and 5min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 4min - Average sunshine in August:
10h and 1min - Average sunshine in September:
8h and 4min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 0min
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
Reston, VA
- Average sunshine days in January:
17.8 days - Average sunshine days in February:
15.1 days - Average sunshine days in March:
14.8 days - Average sunshine days in April:
13.3 days - Average sunshine days in May:
12.8 days - Average sunshine days in June:
13.4 days
- Average sunshine days in July:
13.9 days - Average sunshine days in August:
14.2 days - Average sunshine days in September:
16.3 days - Average sunshine days in October:
17.1 days - Average sunshine days in November:
19.3 days - Average sunshine days in December:
17.9 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (12.8 days).
Average UV index
Reston, VA
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
Reston, VA
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility
Reston, VA
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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