December weather forecastBlue Jay, WV
December
Weather in December
December, the first month of the winter in Blue Jay, is also an icy month, with an average temperature varying between 30°F (-1.1°C) and 42.4°F (5.8°C).Temperature
As December commences, the average high-temperature subtly reduces, transitioning from a cool 50.4°F (10.2°C) in November to an icy 42.4°F (5.8°C). An average low-temperature of 30°F (-1.1°C) is observed during the December nights.Humidity
In December, the average relative humidity in Blue Jay is 82%.Rainfall
In Blue Jay, in December, it is raining for 13.3 days, with typically 3.62" (92mm) of accumulated precipitation. In Blue Jay, during the entire year, the rain falls for 189.8 days and collects up to 36.5" (927mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 12.6 days. Throughout December, 7.48" (190mm) of snow is accumulated. Throughout the year, there are 64.5 snowfall days, and 40.55" (1030mm) of snow is accumulated.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:21 am and sunset at 5:06 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 5:16 pm EST.
Sunshine
In December, the average sunshine is 4.4h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.Note: An average maximum UV index of 2 in December leads to these recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Blue Jay, WV
- Average high temperature in December: 42.4°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in December: 30°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
Blue Jay, WV
- 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 (29.98"Hg).
Average wind speed in December
Blue Jay, WV
- Average wind speed in December: 6.9mph
The windiest months (with the highest average wind speed) are January and February (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Blue Jay, WV
- Average humidity in December: 82%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are June, July, August and November (78%).
Average rainfall in December
Blue Jay, WV
- Average rainfall in December: 3.62"
The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
Blue Jay, WV
- Average rainfall days in December: 13.3 days
The month with the highest number of rainy days is May (22.3 days).
The month with the least rainy days is November (11.9 days).
Average snowfall in December
Blue Jay, WV
- Average snowfall in December: 7.48"
The month with the highest snowfall is February (8.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Blue Jay, WV
- Average snowfall days in December: 12.6 days
The month with the highest number of snowfall days is January (16.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Blue Jay, WV
- 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 December: 4h and 24min
The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Blue Jay, WV
- Average sunshine days in December: 9.5 days
The month with the most sunshine days is November (14.4 days).
The month with the least sunshine days is February (6.8 days).
Average UV index in December
Blue Jay, WV
- Average UV index in December: 2
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Blue Jay, WV
- 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 37).
Average visibility in December
Blue Jay, WV
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February and September (4mi).
