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
The onset of December brings a small shift in high-temperatures, falling from a refreshing 56.1°F (13.4°C) in November to a frosty 48.9°F (9.4°C). In December, Onley's nighttime temperatures demonstrate a slight decrease, stabilizing at an average of 41.7°F (5.4°C).Humidity
The average relative humidity in December in Onley, Virginia, is 76%.Rainfall
In Onley, in December, it is raining for 12.5 days, with typically 3.03" (77mm) of accumulated precipitation. Throughout the year, in Onley, Virginia, there are 175.7 rainfall days, and 37.72" (958mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March and December. December is the first month it typically snows in Onley. Throughout December, in the average 0.9 snowfall days, it receives 0.24" (6mm) of snow. In Onley, during the entire year, snow falls for 6 days and aggregates up to 1.5" (38mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 6:59 am and sunset at 4:44 pm. On the last day of December, in Onley, sunrise is at 7:17 am and sunset at 4:54 pm EST.
Sunshine
In Onley, the average sunshine in December is 5.5h.UV index
In December, the average daily maximum UV index in Onley is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The daily maximum UV index of 3 in December interprets into the following advice:
Prioritize safety - Suggestions to prevent sun damage are offered. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Frequently asked questions
What are December temperatures in Onley?
What is the average humidity in December in Onley?
How many days does it rain in December in Onley?
When does it start snowing in Onley?
What is the month with the shortest days in Onley?
How many hours of daylight does Onley have in December?
What time are sunrise and sunset in December in Onley?
How many hours of sunshine does Onley have in December?
How high is the UV index in December in Onley?
Average temperature in December
Onley, 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
Onley, 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
Onley, 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
Onley, 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
Onley, 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
Onley, 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
Onley, 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
Onley, 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
Onley, 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
Onley, 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
Onley, 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
Onley, 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
Onley, 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).
Onley, Virginia, USA
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