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
In December, the meteorological conditions alter, with the average high-temperature shifting from a cool 51.4°F (10.8°C) in November to an icy 42.3°F (5.7°C). In December, the temperature in Harrisville, West Virginia, drops to an average of 30.7°F (-0.7°C) at night.Humidity
In Harrisville, the average relative humidity in December is 82%.Rainfall
In Harrisville, in December, during 12.8 rainfall days, 3.43" (87mm) of precipitation is typically accumulated. Throughout the year, there are 187.2 rainfall days, and 37.13" (943mm) of precipitation is accumulated.Snowfall
Months with snowfall in Harrisville are January through April, October through December. In Harrisville, West Virginia, in December, snow falls for 11.1 days, with typically accumulated 4.02" (102mm) of snow. Throughout the year, there are 51.4 snowfall days, and 21.81" (554mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:25 am and sunset at 5:01 pm. On the last day of December, sunrise is at 7:43 am and sunset at 5:11 pm EST.
Sunshine
In Harrisville, the average sunshine in December is 3.8h.UV index
The months with the lowest UV index in Harrisville are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 2 in December translates into this advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What is the average humidity in December in Harrisville?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Harrisville have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Harrisville have in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Harrisville, WV
- Average high temperature in December: 42.3°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in December: 30.7°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
Harrisville, WV
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Harrisville, WV
- Average wind speed in December: 6mph
The windiest months (with the highest average wind speed) are January and February (6.6mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in December
Harrisville, WV
- Average humidity in December: 82%
The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are June, July, August and November (77%).
Average rainfall in December
Harrisville, WV
- Average rainfall in December: 3.43"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is September (2.13").
Average rainfall days in December
Harrisville, WV
- Average rainfall days in December: 12.8 days
The month with the highest number of rainy days is May (20.7 days).
The month with the least rainy days is November (12.2 days).
Average snowfall in December
Harrisville, WV
- Average snowfall in December: 4.02"
The month with the highest snowfall is January (5.87").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Harrisville, WV
- Average snowfall days in December: 11.1 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Harrisville, 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: 3h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in December
Harrisville, WV
- Average sunshine days in December: 10.4 days
The month with the most sunshine days is November (15.5 days).
The month with the least sunshine days is February (8.2 days).
Average UV index in December
Harrisville, WV
- Average UV index in December: 2
The months with the highest UV index are 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 December
Harrisville, WV
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Harrisville, WV
- Average visibility in December: 5mi
The month with the highest visibility is November (6mi).
The month with the lowest visibility is January (4mi).
Harrisville, West Virginia, USA
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