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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, the same as December, is another cold winter month in Annandale, Virginia, with an average temperature ranging between min 27.1°F (-2.7°C) and max 40.5°F (4.7°C). January, on average, is the coldest month, registering a high temperature of 40.5°F (4.7°C) and a low of 27.1°F (-2.7°C). Weather in January »
Weather in February
February, the last month of the winter in Annandale, is a frosty month, with an average temperature fluctuating between 44.6°F (7°C) and 29.7°F (-1.3°C). The unfolding of February shows an average high-temperature of a frosty 44.6°F (7°C), indicating a slight variance from January's 40.5°F (4.7°C). Weather in February »
Weather in March
March, the first month of the spring in Annandale, is a cool month, with an average temperature ranging between min 36.9°F (2.7°C) and max 52.9°F (11.6°C). Annandale's March weather indicates a minor ascent in high-temperatures, adjusting from a chilly 44.6°F (7°C) in February to a fresh 52.9°F (11.6°C). Weather in March »
Weather in April
April in Annandale, Virginia, is a comfortable spring month, with an average temperature ranging between min 46.9°F (8.3°C) and max 65.3°F (18.5°C). Noticing a change, the average high-temperature during April moves from March's fresh 52.9°F (11.6°C) to a refreshing 65.3°F (18.5°C). Weather in April »
Weather in May
May, the last month of the spring in Annandale, is a moderately hot month, with an average temperature varying between 74.8°F (23.8°C) and 56.7°F (13.7°C). May sees a temperature increase, moving from a comfortable 65.3°F (18.5°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 Annandale, is also a moderately hot month, with an average temperature varying between 82.9°F (28.3°C) and 63.9°F (17.7°C). Annandale in June observes a minor temperature shift, with average high-temperatures adjusting from a moderately hot 74.8°F (23.8°C) in May to a still warm 82.9°F (28.3°C). Weather in June »
Weather in July
July in Annandale, Virginia, is a tropical summer month, with an average temperature varying between 69.1°F (20.6°C) and 87.6°F (30.9°C). July stands out as Annandale's warmest month, with temperatures ranging between an average high of 87.6°F (30.9°C) and a low of 69.1°F (20.6°C). Throughout July, the heat index is estimated at a torrid 100.4°F (38°C). Weather in July »
Weather in August
August, the last month of the summer in Annandale, is also a moderately hot 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). Annandale records an average high-temperature of a moderately hot 85.6°F (29.8°C) in August, closely mirroring the climate of the previous month. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in Annandale, Virginia, with an average temperature fluctuating between 78.6°F (25.9°C) and 61.3°F (16.3°C). September ushers in a minute temperature change, with average high-temperatures reducing from August's moderately hot 85.6°F (29.8°C) to a still warm 78.6°F (25.9°C). Weather in September »
Weather in October
October, the same as September, is another enjoyable autumn month in Annandale, Virginia, with temperature in the range of an average low of 50.2°F (10.1°C) and an average high of 66.4°F (19.1°C). A subtle decrease in the average high-temperature marks October, falling from September's moderately hot 78.6°F (25.9°C) to a comfortable 66.4°F (19.1°C). Weather in October »
Weather in November
November, the last month of the autumn in Annandale, is another cool month, with an average temperature fluctuating between 54.5°F (12.5°C) and 39.2°F (4°C). A shift in the average high-temperature occurs in November, reducing from a refreshing 66.4°F (19.1°C) in October to a cool 54.5°F (12.5°C). Weather in November »
Weather in December
December, the first month of the winter in Annandale, is also a frosty month, with temperature in the range of an average high of 45.5°F (7.5°C) and an average low of 33.1°F (0.6°C). The start of December involves a temperature drop, moving from a fresh 54.5°F (12.5°C) in November to a frosty 45.5°F (7.5°C). Weather in December »
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month in Annandale?
In Annandale, January is the coldest month, with temperatures averaging a high of 40.5°F (4.7°C) and a low of 27.1°F (-2.7°C).
What is the driest month in Annandale?
January is the month with the least rainfall in Annandale, Virginia. Rain falls for 9.8 days and accumulates 2.05" (52mm) of precipitation.
How much does it rain in Annandale?
In Annandale, during the entire year, the rain falls for 161.2 days and collects up to 31.54" (801mm) of precipitation.
When does it snow in Annandale?
Months with snowfall in Annandale are January through April, November and December.
When does it snow the most in Annandale?
The month with the most snowfall is January, when snow falls for 4.9 days and typically aggregates up to 3.31" (84mm) of snow.
How many days does it snow in Annandale?
In Annandale, Virginia, during the entire year, snow falls for 16.1 days and aggregates up to 10.39" (264mm) of snow.
What is the month with the least sunshine in Annandale?
January, February and December, with an average of 5.2h of sunshine, are months with the least sunshine in Annandale.
What is the month with the lowest UV index in Annandale?
The months with the lowest UV index in Annandale, Virginia, are January, November and December, with an average maximum UV index of 2.
When is Daylight Saving Time (DST) in Annandale?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts in Annandale, Virginia, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
What is the least humid month in Annandale?
The months with the lowest humidity in Annandale are April and July, with an average relative humidity of 71%.
When it does not snow in Annandale?
May through October are months without snowfall.
What are the months with the highest UV index in Annandale?
The months with the highest UV index in Annandale, Virginia, are May through August, with an average maximum UV index of 6.
When are the longest days in Annandale?
The month with the longest days in Annandale, Virginia, is June, with an average of 14h and 48min of daylight.
What month is the hottest in Annandale?
Annandale's warmest month, July, generally records average temperatures ranging from a high of 87.6°F (30.9°C) to a low of 69.1°F (20.6°C).
What month has the most sunshine in Annandale?
July has the most sunshine of the year in Annandale, with an average of 10.9h of sunshine.
What is the rainiest month in Annandale?
August is the month with the most rainfall in Annandale, Virginia. Rain falls for 17.2 days and accumulates 3.78" (96mm) of precipitation.
What is the most humid month in Annandale?
October is the most humid month in Annandale, with an average relative humidity of 77%.
What is the month with the shortest days in Annandale?
The month with the shortest days is December, with an average of 9h and 30min of daylight.
Average temperature
Annandale, 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 (40.5°F).
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (27.1°F).
Average pressure
Annandale, 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
Annandale, VA
- Average wind speed in January:
7.2mph - Average wind speed in February:
7.3mph - Average wind speed in March:
7.6mph - Average wind speed in April:
7.5mph - Average wind speed in May:
6.2mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
4.9mph - Average wind speed in August:
4.8mph - Average wind speed in September:
5.4mph - Average wind speed in October:
6.3mph - Average wind speed in November:
6.6mph - Average wind speed in December:
6.6mph
The windiest month (with the highest average wind speed) is March (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity
Annandale, VA
The month with the highest relative humidity is October (77%).
The months with the lowest relative humidity are April and July (71%).
Average rainfall
Annandale, VA
- Average rainfall in January:
2.05" - Average rainfall in February:
2.09" - Average rainfall in March:
2.4" - Average rainfall in April:
2.8" - Average rainfall in May:
3.15" - Average rainfall in June:
2.6"
- Average rainfall in July:
3.03" - Average rainfall in August:
3.78" - Average rainfall in September:
2.09" - Average rainfall in October:
2.6" - Average rainfall in November:
2.28" - Average rainfall in December:
2.68"
The wettest month (with the highest rainfall) is August (3.78").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days
Annandale, VA
- Average rainfall days in January:
9.8 days - Average rainfall days in February:
10 days - Average rainfall days in March:
14 days - Average rainfall days in April:
15.7 days - Average rainfall days in May:
18.2 days - Average rainfall days in June:
14.9 days
- Average rainfall days in July:
16.8 days - Average rainfall days in August:
17.2 days - Average rainfall days in September:
12.7 days - Average rainfall days in October:
12.2 days - Average rainfall days in November:
8.9 days - Average rainfall days in December:
10.8 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (8.9 days).
Average snowfall
Annandale, VA
The month with the highest snowfall is January (3.31").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
Annandale, VA
- Average snowfall days in January:
4.9 days - Average snowfall days in February:
4.7 days - Average snowfall days in March:
3.2 days - Average snowfall days in April:
0.2 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:
0.5 days - Average snowfall days in December:
2.6 days
The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Annandale, 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 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
5h and 1min - Average sunshine in February:
5h and 1min - Average sunshine in March:
6h and 5min - Average sunshine in April:
9h and 0min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 1min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 5min - Average sunshine in December:
5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 12min).
Average sunshine days
Annandale, VA
- Average sunshine days in January:
17.9 days - Average sunshine days in February:
14.3 days - Average sunshine days in March:
14.3 days - Average sunshine days in April:
12.3 days - Average sunshine days in May:
11.4 days - Average sunshine days in June:
13 days
- Average sunshine days in July:
10.9 days - Average sunshine days in August:
11.6 days - Average sunshine days in September:
15.6 days - Average sunshine days in October:
17.3 days - Average sunshine days in November:
19.2 days - Average sunshine days in December:
17.4 days
The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is July (10.9 days).
Average UV index
Annandale, 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, November and December (UV index 2).
Average cloud cover
Annandale, VA
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility
Annandale, 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).
Annandale, Virginia, USA
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