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
Onancock experiences a moderate temperature shift at the start of December, with average high-temperatures adjusting a bit from a refreshing 56.1°F (13.4°C) in November to a frosty 48.9°F (9.4°C). Onancock's nighttime average temperature in December drops marginally from the daytime highs, settling at a cold 41.7°F (5.4°C).Humidity
The average relative humidity in December is 76%.Rainfall
In Onancock, Virginia, during December, the rain falls for 12.5 days and regularly aggregates up to 3.03" (77mm) of precipitation. In Onancock, during the entire year, the rain falls for 175.7 days and collects up to 37.72" (958mm) of precipitation.Snowfall
January through March and December are months with snowfall in Onancock. December is the first month it typically snows. Throughout December, in the average 0.9 snowfall days, it receives 0.24" (6mm) of snow. In Onancock, Virginia, during the entire year, snow falls for 6 days and aggregates up to 1.5" (38mm) of snow.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 7:00 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 4:54 pm EST.
Sunshine
In December, the average sunshine is 5.5h.UV index
In Onancock, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 3 during December translates into the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Frequently asked questions
What are December temperatures in Onancock?
What is the average humidity in December in Onancock?
How much does it rain in Onancock in December?
When does it start to snow in Onancock?
What is the month with the shortest days in Onancock?
What is the average length of the day in December in Onancock?
When is the sunrise / sunset in December in Onancock?
How many hours of sunshine does Onancock have in December?
What is the UV index reading in December in Onancock?
Average temperature in December
Onancock, VA
- Average high temperature in December: 48.9°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (43.5°F).
- Average low temperature in December: 41.7°F
The month with the highest average low temperature is July (75.7°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in December
Onancock, VA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Onancock, VA
- Average wind speed in December: 12.4mph
The windiest month (with the highest average wind speed) is January (13.1mph).
The calmest month (with the lowest average wind speed) is August (9.2mph).
Average humidity in December
Onancock, VA
- Average humidity in December: 76%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in December
Onancock, VA
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is August (4.29").
The driest months (with the least rainfall) are January and November (2.44").
Average rainfall days in December
Onancock, VA
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is November (10.9 days).
Average snowfall in December
Onancock, VA
- Average snowfall in December: 0.24"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Onancock, VA
- Average snowfall days in December: 0.9 days
The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Onancock, VA
- Average daylight in December: 9h and 4min
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: 5h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in December
Onancock, VA
- Average sunshine days in December: 15.9 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in December
Onancock, VA
- Average UV index in December: 3
The months with the highest UV index are July and August (UV index 7).
The month with the lowest UV index is January (UV index 2).
Average cloud cover in December
Onancock, VA
- Average cloud cover in December: 42
The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are June, July and August (Cloud cover 26).
Average visibility in December
Onancock, VA
- 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).
Onancock, Virginia, USA
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