December weather forecastMellenville, NY
December
Weather in December
December, the first month of the winter in Mellenville, is also an icy month, with temperature in the range of an average high of 35.4°F (1.9°C) and an average low of 24.4°F (-4.2°C).Temperature
Mellenville's December weather comes with a decrease in average high-temperatures, moving from a frosty 46°F (7.8°C) in November to a wintry 35.4°F (1.9°C). Mellenville in December experiences a low-temperature average of 24.4°F (-4.2°C).Humidity
In December, the average relative humidity is 82%.Rainfall
In Mellenville, in December, it is raining for 8.5 days, with typically 1.54" (39mm) of accumulated precipitation. In Mellenville, during the entire year, the rain falls for 139.3 days and collects up to 21.06" (535mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Mellenville. In December, in Mellenville, it is snowing for 5.9 days. Throughout December, 2.95" (75mm) of snow is accumulated. In Mellenville, during the entire year, snow falls for 37.3 days and aggregates up to 15.79" (401mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:04 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:32 pm EST.
Sunshine
The average sunshine in December in Mellenville is 4.5h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Mellenville. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mellenville, NY
- Average high temperature in December: 35.4°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in December: 24.4°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).
Average pressure in December
Mellenville, 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 (29.93"Hg).
Average wind speed in December
Mellenville, NY
- Average wind speed in December: 7.4mph
The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Mellenville, NY
- Average humidity in December: 82%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Mellenville, NY
- Average rainfall in December: 1.54"
The wettest month (with the highest rainfall) is July (2.64").
The driest month (with the least rainfall) is January (1.1").
Average rainfall days in December
Mellenville, NY
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is May (16.2 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in December
Mellenville, NY
- Average snowfall in December: 2.95"
The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Mellenville, NY
- Average snowfall days in December: 5.9 days
The month with the highest number of snowfall days is February (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mellenville, NY
- Average daylight in December: 9h and 12min
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 12min).
- Average sunshine in December: 4h and 30min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in December
Mellenville, NY
- Average sunshine days in December: 18.9 days
The month with the most sunshine days is January (19.7 days).
The month with the least sunshine days is June (12.1 days).
Average UV index in December
Mellenville, NY
- Average UV index in December: 2
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, March, October, November and December (UV index 2).
Average cloud cover in December
Mellenville, NY
- Average cloud cover in December: 52
The month with the most cloud cover is February (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in December
Mellenville, NY
- Average visibility in December: 6mi
The months with the highest visibility are January, April, November and December (6mi).
The months with the lowest visibility are February, March, May, June, July, August, September and October (5mi).
