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 introduces a moderate change in New Haven's weather, with average high-temperatures falling from November's cool 52.5°F (11.4°C) to a frosty 42.8°F (6°C). During December, New Haven sees a mean low-temperature of 31.1°F (-0.5°C).Humidity
The average relative humidity in December in New Haven is 81%.Rainfall
In New Haven, during December, the rain falls for 12.4 days and regularly aggregates up to 3.11" (79mm) of precipitation. Throughout the year, there are 170.5 rainfall days, and 33.39" (848mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In New Haven, in December, snow falls for 8.1 days, with typically accumulated 2.28" (58mm) of snow. In New Haven, during the entire year, snow falls for 39.1 days and aggregates up to 13.35" (339mm) of snow.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year in New Haven, West Virginia.On the first day of December in New Haven, West Virginia, sunrise is at 7:28 am and sunset at 5:06 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 5:15 pm EST.
Sunshine
In December, the average sunshine in New Haven is 3.9h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The average daily UV index of 2 in December transforms into the following instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. To protect against the Sun's most potent rays, avoid direct exposure around midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Frequently asked questions
Is December cold in New Haven?
What is the average humidity in December in New Haven?
How much does it rain in New Haven in December?
How many days does it snow in December in New Haven?
What is the month with the shortest days in New Haven?
What is the average length of the day in December in New Haven?
When is the sunrise / sunset in December in New Haven?
How long on average sun shines in December in New Haven?
What is the month with the lowest UV index in New Haven?
What is the UV index intensity in December in New Haven?
Average temperature in December
New Haven, WV
- Average high temperature in December: 42.8°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in December: 31.1°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).
Average pressure in December
New Haven, WV
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
New Haven, WV
- Average wind speed in December: 6.5mph
The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in December
New Haven, WV
- Average humidity in December: 81%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is August (74%).
Average rainfall in December
New Haven, WV
- Average rainfall in December: 3.11"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in December
New Haven, WV
- Average rainfall days in December: 12.4 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is November (10.7 days).
Average snowfall in December
New Haven, WV
- Average snowfall in December: 2.28"
The month with the highest snowfall is February (3.66").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
New Haven, WV
- Average snowfall days in December: 8.1 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
New Haven, WV
- Average daylight in December: 9h and 3min
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 30min).
- Average sunshine in December: 3h and 5min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
New Haven, WV
- Average sunshine days in December: 13.2 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (9.4 days).
Average UV index in December
New Haven, WV
- 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, November and December (UV index 2).
Average cloud cover in December
New Haven, WV
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
New Haven, WV
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
New Haven, West Virginia, USA
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