December weather forecastWillseyville, NY
December
Weather in December
December, the first month of the winter in Willseyville, is also an icy month, with an average temperature varying between 33.6°F (0.9°C) and 24.1°F (-4.4°C).Temperature
As Willseyville enters December, the average high-temperature decreases from the a frosty 44.1°F (6.7°C) of November to an icy 33.6°F (0.9°C). During December nights, Willseyville records an average temperature of 24.1°F (-4.4°C).Humidity
In December, the average relative humidity is 86%.Rainfall
In Willseyville, in December, during 9.3 rainfall days, 2.36" (60mm) of precipitation is typically accumulated. In Willseyville, New York, during the entire year, the rain falls for 164.2 days and collects up to 32.56" (827mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Willseyville, during December, snow falls for 16 days and regularly aggregates up to 6.77" (172mm) of snow. Throughout the year, in Willseyville, there are 82.1 snowfall days, and 34.57" (878mm) of snow is accumulated.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of December in Willseyville, New York, sunrise is at 7:15 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 4:43 pm EST.
Sunshine
The average sunshine in December in Willseyville is 2.9h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the average maximum UV index of 1 translates into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Enhance your sun protection with tightly woven, yet airy clothing. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Willseyville, NY
- Average high temperature in December: 33.6°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in December: 24.1°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).
Average pressure in December
Willseyville, NY
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Willseyville, NY
- Average wind speed in December: 9.5mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).
Average humidity in December
Willseyville, NY
- Average humidity in December: 86%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April and May (79%).
Average rainfall in December
Willseyville, NY
- Average rainfall in December: 2.36"
The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is November (1.97").
Average rainfall days in December
Willseyville, NY
- Average rainfall days in December: 9.3 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is February (6.4 days).
Average snowfall in December
Willseyville, NY
- Average snowfall in December: 6.77"
The month with the highest snowfall is February (8.35").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Willseyville, NY
- Average snowfall days in December: 16 days
The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Willseyville, NY
- Average daylight in December: 9h and 6min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 2h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).
Average sunshine days in December
Willseyville, NY
- Average sunshine days in December: 8.5 days
The month with the most sunshine days is September (14.2 days).
The month with the least sunshine days is February (6.8 days).
Average UV index in December
Willseyville, NY
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Willseyville, NY
- Average cloud cover in December: 72
The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in December
Willseyville, NY
- 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).
