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
Phillis in December experiences a gentle temperature dip, with average high-temperatures reducing from a moderate 57.9°F (14.4°C) in November to a cool 50.9°F (10.5°C). December nights are marked by an average temperature drop to a cold 36.5°F (2.5°C).Humidity
December is the most humid month, with an average relative humidity of 78%.Rainfall
In December, the rain falls for 10.3 days. Throughout December, 1.73" (44mm) of precipitation is accumulated. In Phillis, during the entire year, the rain falls for 144.4 days and collects up to 21.3" (541mm) of precipitation.Snowfall
Months with snowfall are January through March and December. December is the first month it typically snows. Throughout December, in the average 0.8 snowfall days, it receives 0.71" (18mm) of snow. Throughout the year, there are 6.3 snowfall days, and 3.74" (95mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 42min of daylight.On the first day of the month, sunrise is at 7:07 am and sunset at 4:57 pm. On the last day of December, sunrise is at 7:25 am and sunset at 5:07 pm EST.
Sunshine
The months with the least sunshine are January and December, with an average of 5.5h of sunshine.UV index
January 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 threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 2 in December translates into this advice:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in December?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December?
When does it start to snow?
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?
What are the months with the least sunshine?
How long on average sun shines in December?
What are the months with the lowest UV index in Phillis?
What is the UV index reading in December?
Average temperature in December
Phillis, VA
- Average high temperature in December: 50.9°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (46°F).
- Average low temperature in December: 36.5°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in December
Phillis, VA
- 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
Phillis, VA
- Average wind speed in December: 6.3mph
The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Phillis, VA
- Average humidity in December: 78%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (71%).
Average rainfall in December
Phillis, VA
- Average rainfall in December: 1.73"
The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is September (1.3").
Average rainfall days in December
Phillis, VA
- Average rainfall days in December: 10.3 days
The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is October (8.3 days).
Average snowfall in December
Phillis, VA
- Average snowfall in December: 0.71"
The month with the highest snowfall is January (1.5").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Phillis, VA
- Average snowfall days in December: 0.8 days
The month with the highest number of snowfall days is February (2.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Phillis, VA
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 5h and 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in December
Phillis, VA
- Average sunshine days in December: 19.6 days
The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is July (12 days).
Average UV index in December
Phillis, VA
- 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 and December (UV index 2).
Average cloud cover in December
Phillis, VA
- Average cloud cover in December: 42
The months with the most cloud cover are February and March (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Phillis, VA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Phillis, Virginia, USA
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