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 the transition to December, Summerlee observes a minor drop in the average high-temperature, shifting from a cool 50.5°F (10.3°C) in November to an icy 42.1°F (5.6°C). Summerlee, during the nights of December, experiences an average temperature drop to a freezing cold 30°F (-1.1°C).Humidity
In Summerlee, West Virginia, the average relative humidity in December is 82%.Rainfall
In Summerlee, in December, it is raining for 12.3 days, with typically 3.43" (87mm) of accumulated precipitation. In Summerlee, West Virginia, during the entire year, the rain falls for 183.4 days and collects up to 36.97" (939mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Summerlee, West Virginia, during December, snow falls for 11.2 days and regularly aggregates up to 6.89" (175mm) of snow. In Summerlee, West Virginia, during the entire year, snow falls for 54.9 days and aggregates up to 35.28" (896mm) of snow.Daylight
The month with the shortest days in Summerlee is December, with an average of 9h and 36min of daylight.On the first day of December, sunrise is at 7:22 am and sunset at 5:05 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:15 pm EST.
Sunshine
In Summerlee, the average sunshine in December is 4.1h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A daily high UV index of 2 in December leads to these guidelines:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Always opt for UVA and UVB-resistant sunglasses on radiant days. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
How cold is it in Summerlee in December?
What is the average humidity in December in Summerlee?
How many days does it rain in December in Summerlee?
How much does it snow in Summerlee in December?
What is the month with the shortest days in Summerlee?
How many hours of daylight does Summerlee have in December?
When is the sunrise / sunset in December in Summerlee?
How long on average sun shines in December in Summerlee?
What are the months with the lowest UV index in Summerlee?
How high is the UV index in December in Summerlee?
Average temperature in December
Summerlee, WV
- Average high temperature in December: 42.1°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in December: 30°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
Summerlee, 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
Summerlee, WV
- Average wind speed in December: 6.8mph
The windiest months (with the highest average wind speed) are January and February (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Summerlee, 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
Summerlee, WV
- Average rainfall in December: 3.43"
The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in December
Summerlee, WV
- Average rainfall days in December: 12.3 days
The month with the highest number of rainy days is May (21.8 days).
The months with the least rainy days are February and November (10.5 days).
Average snowfall in December
Summerlee, WV
- Average snowfall in December: 6.89"
The month with the highest snowfall is February (7.48").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Summerlee, WV
- Average snowfall days in December: 11.2 days
The month with the highest number of snowfall days is January (14 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Summerlee, WV
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Summerlee, WV
- Average sunshine days in December: 11.3 days
The month with the most sunshine days is November (16.4 days).
The month with the least sunshine days is May (7.8 days).
Average UV index in December
Summerlee, WV
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Summerlee, WV
- Average cloud cover in December: 61
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in December
Summerlee, WV
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
Summerlee, West Virginia, USA
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