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
A shift in the average high-temperature occurs in December, reducing from a chilly 49.1°F (9.5°C) in November to a cold 39°F (3.9°C). In the month of December, an average of 29.1°F (-1.6°C) marks the low-temperature.Humidity
In West Jefferson, the average relative humidity in December is 82%.Rainfall
In December, the rain falls for 9 days. Throughout December, 1.1" (28mm) of precipitation is accumulated. In West Jefferson, during the entire year, the rain falls for 138.2 days and collects up to 15.31" (389mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. In West Jefferson, during December, snow falls for 7.1 days and regularly aggregates up to 0.75" (19mm) of snow. In West Jefferson, during the entire year, snow falls for 34.2 days and aggregates up to 4.76" (121mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:36 am and sunset at 5:08 pm. On the last day of the month, sunrise is at 7:54 am and sunset at 5:18 pm EST.
Sunshine
In December, the average sunshine is 4h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: An average maximum UV index of 2 in December leads to these recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Enhance your sun protection with tightly woven, yet airy clothing. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December in West Jefferson?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How many hours of sunshine does West Jefferson have in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
West Jefferson, OH
- Average high temperature in December: 39°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (33.1°F).
- Average low temperature in December: 29.1°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in December
West Jefferson, OH
- 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 (29.94"Hg).
Average wind speed in December
West Jefferson, OH
- Average wind speed in December: 9.1mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in December
West Jefferson, OH
- Average humidity in December: 82%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
West Jefferson, OH
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is September (0.91").
Average rainfall days in December
West Jefferson, OH
- Average rainfall days in December: 9 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in December
West Jefferson, OH
- Average snowfall in December: 0.75"
The month with the highest snowfall is February (1.22").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
West Jefferson, OH
- Average snowfall days in December: 7.1 days
The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
West Jefferson, OH
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
West Jefferson, OH
- Average sunshine days in December: 17.4 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in December
West Jefferson, OH
- Average UV index in December: 2
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 in December
West Jefferson, OH
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
West Jefferson, OH
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
West Jefferson, Ohio, USA
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