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
In Valley Mills, the average high-temperature in December drops from a chilly 43.9°F (6.6°C) in November to an icy 33.3°F (0.7°C). Valley Mills sees a minor drop to an average minimum temperature of 24.4°F (-4.2°C) during the night in the month of December.Humidity
In Valley Mills, the average relative humidity in December is 86%.Rainfall
In December, the rain falls for 11.7 days. Throughout December, 2.6" (66mm) of precipitation is accumulated. In Valley Mills, during the entire year, the rain falls for 174.7 days and collects up to 30.63" (778mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 16.8 days. Throughout December, 7.56" (192mm) of snow is accumulated. In Valley Mills, during the entire year, snow falls for 84.3 days and aggregates up to 32.95" (837mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:14 am and sunset at 4:28 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 4:37 pm EST.
Sunshine
In Valley Mills, the average sunshine in December is 2.9h.UV index
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.Note: In December, the maximum UV index of 1 transforms into these recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December in Valley Mills?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Valley Mills have in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Valley Mills, NY
- Average high temperature in December: 33.3°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in December: 24.4°F
The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (16°F).
Average pressure in December
Valley Mills, NY
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Valley Mills, NY
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in December
Valley Mills, NY
- Average humidity in December: 86%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (78%).
Average rainfall in December
Valley Mills, NY
- Average rainfall in December: 2.6"
The wettest month (with the highest rainfall) is April (3.11").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in December
Valley Mills, NY
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is August (17.8 days).
The month with the least rainy days is February (9 days).
Average snowfall in December
Valley Mills, NY
- Average snowfall in December: 7.56"
The month with the highest snowfall is February (7.95").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Valley Mills, NY
- Average snowfall days in December: 16.8 days
The month with the highest number of snowfall days is January (20.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Valley Mills, NY
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 2h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).
Average sunshine days in December
Valley Mills, NY
- Average sunshine days in December: 6.5 days
The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is February (4.8 days).
Average UV index in December
Valley Mills, NY
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in December
Valley Mills, NY
- Average cloud cover in December: 70
The months with the most cloud cover are January and February (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Valley Mills, NY
- Average visibility in December: 5mi
The months with the highest visibility are April and October (6mi).
The months with the lowest visibility are January and February (4mi).
Valley Mills, New York, USA
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