December weather forecastMontross, VA
December
Weather in December
The first month of the winter, December, is also a frosty month in Montross, Virginia, with an average temperature fluctuating between 35.1°F (1.7°C) and 47.5°F (8.6°C).Temperature
December witnesses a gentle descent in average high-temperature, descending from November's refreshing 55.8°F (13.2°C) to a chilly 47.5°F (8.6°C). Montross observes an average low-temperature of 35.1°F (1.7°C) during December nights.Humidity
May and December, with an average relative humidity of 78%, are the most humid months.Rainfall
In Montross, during December, the rain falls for 10.7 days and regularly aggregates up to 2.44" (62mm) of precipitation. In Montross, during the entire year, the rain falls for 158.1 days and collects up to 30.47" (774mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Montross. In December, in Montross, it is snowing for 2 days. Throughout December, 1.26" (32mm) of snow is accumulated. In Montross, Virginia, during the entire year, snow falls for 12 days and aggregates up to 6.73" (171mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 36min of daylight.On the first day of the month, sunrise is at 7:05 am and sunset at 4:47 pm. On the last day of December, in Montross, sunrise is at 7:23 am and sunset at 4:57 pm EST.
Sunshine
February and December, with an average of 5.1h of sunshine, are months with the least sunshine in Montross, Virginia.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Montross. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Montross, VA
- Average high temperature in December: 47.5°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (42.3°F).
- Average low temperature in December: 35.1°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in December
Montross, VA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Montross, VA
- Average wind speed in December: 6.6mph
The windiest month (with the highest average wind speed) is April (8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in December
Montross, VA
- Average humidity in December: 78%
The months with the highest relative humidity are May and December (78%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Montross, VA
- Average rainfall in December: 2.44"
The wettest months (with the highest rainfall) are July and August (3.19").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in December
Montross, VA
- Average rainfall days in December: 10.7 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (9.4 days).
Average snowfall in December
Montross, VA
- Average snowfall in December: 1.26"
The month with the highest snowfall is January (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Montross, VA
- Average snowfall days in December: 2 days
The month with the highest number of snowfall days is January (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
Montross, VA
- Average daylight in December: 9h and 36min
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: 5h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).
Average sunshine days in December
Montross, VA
- Average sunshine days in December: 18.1 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.9 days).
Average UV index in December
Montross, 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, February and December (UV index 2).
Average cloud cover in December
Montross, VA
- Average cloud cover in December: 44
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Montross, VA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
