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
During the transition into December, Delmar observes a decrease in the average high-temperature, falling from a cool 50°F (10°C) in November to a cold 40.6°F (4.8°C). In December, Delmar experiences an average nighttime temperature of 29.3°F (-1.5°C).Humidity
In Delmar, the average relative humidity in December is 83%.Rainfall
In December, in Delmar, West Virginia, the rain falls for 13 days. Throughout December, 3.19" (81mm) of precipitation is accumulated. In Delmar, during the entire year, the rain falls for 187.8 days and collects up to 36.46" (926mm) of precipitation.Snowfall
Months with snowfall in Delmar, West Virginia, are January through May, October through December. In Delmar, in December, during 13.1 snowfall days, 6.14" (156mm) of snow is typically accumulated. In Delmar, during the entire year, snow falls for 63.1 days and aggregates up to 32.32" (821mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of December in Delmar, sunrise is at 7:22 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:06 pm EST.
Sunshine
In December, the average sunshine in Delmar, West Virginia, is 3.8h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 1 during December translates into these guidelines:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold in Delmar?
What is the average humidity in December in Delmar?
How many days does it rain in December in Delmar?
How many days does it snow in December in Delmar?
What is the month with the shortest days in Delmar?
What is the average length of the day in December in Delmar?
What time are sunrise and sunset in December in Delmar?
How long on average sun shines in December in Delmar?
What is the month with the lowest UV index in Delmar?
How high is the UV index in December in Delmar?
Average temperature in December
Delmar, WV
- Average high temperature in December: 40.6°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (34.5°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in December
Delmar, WV
- Average pressure in December: 30.12"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
Delmar, WV
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Delmar, WV
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are July and August (77%).
Average rainfall in December
Delmar, WV
- Average rainfall in December: 3.19"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in December
Delmar, WV
- Average rainfall days in December: 13 days
The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is January (11.1 days).
Average snowfall in December
Delmar, WV
- Average snowfall in December: 6.14"
The month with the highest snowfall is February (7.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Delmar, WV
- Average snowfall days in December: 13.1 days
The month with the highest number of snowfall days is January (17 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Delmar, WV
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
Delmar, WV
- Average sunshine days in December: 10 days
The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is January (6.7 days).
Average UV index in December
Delmar, WV
- Average UV index in December: 1
The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Delmar, WV
- Average cloud cover in December: 63
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Delmar, WV
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
Delmar, West Virginia, USA
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