Climate and monthly weather forecastHerndon Heights, WV
Climate and monthly weather forecast
Weather in January
January, like December, in Herndon Heights, West Virginia, is an icy winter month, with temperature in the range of an average low of 24.8°F (-4°C) and an average high of 38.3°F (3.5°C). Herndon Heights reaches its lowest average temperatures in January, measuring 38.3°F (3.5°C) at the peak and 24.8°F (-4°C) at the lowest. Weather in January »Weather in February
The last month of the winter, February, is another cold month in Herndon Heights, West Virginia, with temperature in the range of an average low of 27.5°F (-2.5°C) and an average high of 42.6°F (5.9°C). The beginning of February records an average high-temperature of a still cold 42.6°F (5.9°C), almost echoing the conditions of the previous month. Weather in February »Weather in March
The first month of the spring, March, is a fresh month in Herndon Heights, West Virginia, with an average temperature ranging between min 34.5°F (1.4°C) and max 51.1°F (10.6°C). In Herndon Heights, the average high-temperature in March slightly rises, from a wintry 42.6°F (5.9°C) in February, to a cool 51.1°F (10.6°C). Weather in March »Weather in April
April in Herndon Heights, West Virginia, is an enjoyable spring month, with an average temperature ranging between min 43.5°F (6.4°C) and max 62.8°F (17.1°C). The shift from March to April sees an increase in the average high-temperature, transitioning from a cool 51.1°F (10.6°C) to a refreshing 62.8°F (17.1°C). Weather in April »Weather in May
The last month of the spring, May, is an agreeable month in Herndon Heights, West Virginia, with an average temperature varying between 72.1°F (22.3°C) and 51.6°F (10.9°C). The arrival of May signals an increase in the average high-temperature, moving from an enjoyable 62.8°F (17.1°C) in April to a pleasant 72.1°F (22.3°C). Weather in May »Weather in June
The first month of the summer, June, is a moderately hot month in Herndon Heights, West Virginia, with an average temperature ranging between max 79.3°F (26.3°C) and min 56.7°F (13.7°C). The arrival of June brings a soft temperature shift, with the average high-temperature nudging from an agreeable 72.1°F (22.3°C) in May to a warm 79.3°F (26.3°C). Weather in June »Weather in July
July, the same as June, is another warm summer month in Herndon Heights, West Virginia, with an average temperature varying between 60.1°F (15.6°C) and 82.8°F (28.2°C). Herndon Heights witnesses the warmest weather in July, with temperatures averaging a high of 82.8°F (28.2°C) and a low of 60.1°F (15.6°C). July's heat index is computed to be a hot 89.6°F (32°C). Weather in July »Weather in August
The last month of the summer, August, is also a moderately hot month in Herndon Heights, West Virginia, with an average temperature varying between 82°F (27.8°C) and 58.5°F (14.7°C). The onset of August brings an average high-temperature of a still moderately hot 82°F (27.8°C), nearly matching the July temperature. Weather in August »Weather in September
The first month of the autumn, September, is also a moderately hot month in Herndon Heights, West Virginia, with an average temperature ranging between max 75.9°F (24.4°C) and min 54.1°F (12.3°C). The onset of September is marked by a minor decrease in temperature, transitioning from 82°F (27.8°C) in August to a still warm 75.9°F (24.4°C). Weather in September »Weather in October
October, like September, in Herndon Heights, West Virginia, is another refreshing autumn month, with temperature in the range of an average low of 45°F (7.2°C) and an average high of 63.7°F (17.6°C). October's onset brings a reduction in the average high-temperature, from a moderately hot 75.9°F (24.4°C) in September to a refreshing 63.7°F (17.6°C). Weather in October »Weather in November
November, the last month of the autumn in Herndon Heights, is also a fresh month, with an average temperature fluctuating between 34.7°F (1.5°C) and 52°F (11.1°C). The onset of November results in a decrease in the average high-temperature, receding from a refreshing 63.7°F (17.6°C) in October to a fresh 52°F (11.1°C). Weather in November »Weather in December
The first month of the winter, December, is also a frosty month in Herndon Heights, West Virginia, with an average temperature varying between 30.7°F (-0.7°C) and 43.5°F (6.4°C). As December commences, the average high-temperature subtly reduces, transitioning from a fresh 52°F (11.1°C) in November to a chilly 43.5°F (6.4°C). Weather in December »Updated: Aug 13, 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
January, noted for its average high-temperature of 38.3°F (3.5°C) and an average low-temperature of 24.8°F (-4°C), is considered the coldest month.
In Herndon Heights, during the entire year, the rain falls for 180.7 days and collects up to 32.24" (819mm) of precipitation.
Months with snowfall in Herndon Heights are January through May, October through December.
In Herndon Heights, during the entire year, snow falls for 50.3 days and aggregates up to 27.09" (688mm) of snow.
The month with the least sunshine is January, with an average of 4.2h of sunshine.
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Herndon Heights.
The most humid month is February, with an average relative humidity of 83%.
The wettest months are February and May, with an average 3.43" (87mm) of rainfall.
The month with the most snowfall is February, when snow falls for 11.7 days and typically aggregates up to 6.02" (153mm) of snow.
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 ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
The months with the lowest humidity are June through August and November, with an average relative humidity of 77%.
June through September are months without snowfall.
June has the longest days of the year, with an average of 14h and 42min of daylight.
June and August, with an average maximum UV index of 6, are months with the highest UV index.
Herndon Heights's warmest temperatures are experienced in July, with average high temperatures of 82.8°F (28.2°C) and lows of 60.1°F (15.6°C).
With an average of 10.1h of sunshine, August has the most sunshine of the year.
The month with the least rainfall is September, when the rain falls for 15.5 days and typically collects 1.57" (40mm) of precipitation.
The month with the shortest days in Herndon Heights is December, with an average of 9h and 36min of daylight.
Average temperature
Herndon Heights, WV
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (38.3°F).
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure
Herndon Heights, WV
- Average pressure in January:
30.15"Hg - Average pressure in February:
30.11"Hg - Average pressure in March:
30.1"Hg - Average pressure in April:
30"Hg - Average pressure in May:
30.03"Hg - Average pressure in June:
29.99"Hg
- Average pressure in July:
30.02"Hg - Average pressure in August:
30.03"Hg - Average pressure in September:
30.06"Hg - Average pressure in October:
30.07"Hg - Average pressure in November:
30.16"Hg - Average pressure in December:
30.14"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed
Herndon Heights, WV
- Average wind speed in January:
7.4mph - Average wind speed in February:
7.3mph - Average wind speed in March:
6.8mph - Average wind speed in April:
7.1mph - Average wind speed in May:
5.9mph - Average wind speed in June:
5.2mph
- Average wind speed in July:
4.6mph - Average wind speed in August:
4.2mph - Average wind speed in September:
4.5mph - Average wind speed in October:
5.5mph - Average wind speed in November:
5.8mph - Average wind speed in December:
6.6mph
The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity
Herndon Heights, WV
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are June, July, August and November (77%).
Average rainfall
Herndon Heights, WV
- Average rainfall in January:
2.68" - Average rainfall in February:
3.43" - Average rainfall in March:
2.95" - Average rainfall in April:
2.99" - Average rainfall in May:
3.43" - Average rainfall in June:
2.56"
- Average rainfall in July:
2.64" - Average rainfall in August:
2.13" - Average rainfall in September:
1.57" - Average rainfall in October:
2.68" - Average rainfall in November:
2.05" - Average rainfall in December:
3.15"
The wettest months (with the highest rainfall) are February and May (3.43").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days
Herndon Heights, WV
- Average rainfall days in January:
12.2 days - Average rainfall days in February:
11.8 days - Average rainfall days in March:
15.9 days - Average rainfall days in April:
17.3 days - Average rainfall days in May:
20.1 days - Average rainfall days in June:
17.3 days
- Average rainfall days in July:
18.3 days - Average rainfall days in August:
15.6 days - Average rainfall days in September:
15.5 days - Average rainfall days in October:
13 days - Average rainfall days in November:
11.3 days - Average rainfall days in December:
12.4 days
The month with the highest number of rainy days is May (20.1 days).
The month with the least rainy days is November (11.3 days).
Average snowfall
Herndon Heights, WV
- Average snowfall in January:
5.94" - Average snowfall in February:
6.02" - Average snowfall in March:
5.47" - Average snowfall in April:
1.3" - Average snowfall in May:
0.43" - Average snowfall in June:
0"
The month with the highest snowfall is February (6.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days
Herndon Heights, WV
- Average snowfall days in January:
13.1 days - Average snowfall days in February:
11.7 days - Average snowfall days in March:
7.2 days - Average snowfall days in April:
1.9 days - Average snowfall days in May:
0.3 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:
1.2 days - Average snowfall days in November:
4.4 days - Average snowfall days in December:
10.5 days
The month with the highest number of snowfall days is January (13.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight / Average sunshine
Herndon Heights, WV
- Average daylight in January:
9h and 54min - Average daylight in February:
10h and 48min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 12min - Average daylight in May:
14h and 12min - Average daylight in June:
14h and 42min
- Average daylight in July:
14h and 30min - Average daylight in August:
13h and 36min - Average daylight in September:
12h and 24min - Average daylight in October:
11h and 12min - Average daylight in November:
10h and 12min - Average daylight in December:
9h and 36min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in January:
4h and 12min - Average sunshine in February:
5h and 0min - Average sunshine in March:
6h and 6min - Average sunshine in April:
8h and 18min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 0min
- Average sunshine in July:
9h and 54min - Average sunshine in August:
10h and 6min - Average sunshine in September:
8h and 18min - Average sunshine in October:
5h and 54min - Average sunshine in November:
5h and 36min - Average sunshine in December:
4h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days
Herndon Heights, WV
- Average sunshine days in January:
9.7 days - Average sunshine days in February:
8.3 days - Average sunshine days in March:
10.2 days - Average sunshine days in April:
9.9 days - Average sunshine days in May:
9.6 days - Average sunshine days in June:
10.8 days
- Average sunshine days in July:
10.2 days - Average sunshine days in August:
12.8 days - Average sunshine days in September:
12.1 days - Average sunshine days in October:
15.7 days - Average sunshine days in November:
15.8 days - Average sunshine days in December:
11.7 days
The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is February (8.3 days).
Average UV index
Herndon Heights, WV
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover
Herndon Heights, WV
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility
Herndon Heights, WV
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
