Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The arrival of December signals a subtle shift in temperature, down from a frosty 47.3°F (8.5°C) in November to a cold 38.8°F (3.8°C). The nighttime temperature, during December, averages of 26.1°F (-3.3°C).Humidity
In December, the average relative humidity in Harman is 84%.Rainfall
In December, the rain falls for 12.5 days. Throughout December, 3.07" (78mm) of precipitation is accumulated. Throughout the year, there are 175.3 rainfall days, and 33.11" (841mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Harman, during December, snow falls for 13.3 days and regularly aggregates up to 8.27" (210mm) of snow. In Harman, during the entire year, snow falls for 70.3 days and aggregates up to 47.2" (1199mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of December in Harman, sunrise is at 7:18 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 5:06 pm EST.
Sunshine
In December, the average sunshine in Harman is 4.1h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index in Harman. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The daily maximum UV index of 1 in December interprets into the following advice:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
Is December cold in Harman?
What is the average humidity in December in Harman?
How many days does it rain in December in Harman?
How many days does it snow in December in Harman?
What is the month with the shortest days in Harman?
How many hours of daylight does Harman have in December?
When are sunrise and sunset in December in Harman?
How many hours of sunshine does Harman have in December?
What is the month with the lowest UV index in Harman?
How high is the UV index in December in Harman?
Average temperature in December
Harman, WV
- Average high temperature in December: 38.8°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 26.1°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in December
Harman, WV
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Harman, WV
- Average wind speed in December: 7.8mph
The windiest months (with the highest average wind speed) are January and February (8.6mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in December
Harman, WV
- Average humidity in December: 84%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are June and July (78%).
Average rainfall in December
Harman, WV
- Average rainfall in December: 3.07"
The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is November (2.2").
Average rainfall days in December
Harman, WV
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is May (20.4 days).
The month with the least rainy days is February (8.4 days).
Average snowfall in December
Harman, WV
- Average snowfall in December: 8.27"
The month with the highest snowfall is January (10.35").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Harman, WV
- Average snowfall days in December: 13.3 days
The month with the highest number of snowfall days is January (15.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Harman, WV
- 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 December: 4h and 1min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Harman, WV
- Average sunshine days in December: 10.1 days
The month with the most sunshine days is November (13.9 days).
The month with the least sunshine days is May (8.4 days).
Average UV index in December
Harman, WV
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Harman, WV
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility in December
Harman, WV
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, November and December (5mi).
The months with the lowest visibility are September and October (4mi).
Harman, West Virginia, USA
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