December weather forecastOnancock, VA
December
Weather in December
The first month of the winter, December, is also a frosty month in Onancock, Virginia, with an average temperature ranging between min 41.7°F (5.4°C) and max 48.9°F (9.4°C).Temperature
December is characterized by a slight reduction in average high-temperature, easing from a mild 56.1°F (13.4°C) in November to a frosty 48.9°F (9.4°C). Onancock's nighttime temperatures in December reveal a minimal variation from the daytime highs, averaging at a cold 41.7°F (5.4°C).Humidity
The average relative humidity in December is 76%.Rainfall
In Onancock, in December, during 12.5 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. In Onancock, during the entire year, the rain falls for 175.7 days and collects up to 37.72" (958mm) of precipitation.Snowfall
Months with snowfall are January through March and December. December is the first month it typically snows in Onancock. Throughout December, in the average 0.9 snowfall days, it receives 0.24" (6mm) of snow. Throughout the year, there are 6 snowfall days, and 1.5" (38mm) 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 the month, sunrise is at 7:00 am and sunset at 4:44 pm. On the last day of December, in Onancock, sunrise is at 7:18 am and sunset at 4:54 pm EST.
Sunshine
In December, the average sunshine in Onancock is 5.5h.UV index
In December, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 3 during December translates into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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 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: 5h and 30min
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).
