December weather forecastMonticello, NY
December
Weather in December
December, the first month of the winter in Monticello, is also an icy month, with temperature in the range of an average low of 23.9°F (-4.5°C) and an average high of 35.6°F (2°C).Temperature
December involves a decrease in temperature, down from a chilly 45.3°F (7.4°C) in November to a wintry 35.6°F (2°C). Throughout the month of December, the nighttime temperature in Monticello, New York, dips to an average of 23.9°F (-4.5°C).Humidity
The months with the highest humidity are February and December, with an average relative humidity of 85%.Rainfall
In Monticello, in December, during 9.8 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. In Monticello, during the entire year, the rain falls for 153.7 days and collects up to 26.73" (679mm) of precipitation.Snowfall
Months with snowfall in Monticello are January through May, October through December. December is the month with the most snowfall. Snow falls for 8.1 days and accumulates 5.04" (128mm) of snow.Daylight
The month with the shortest days in Monticello, New York, is December, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:06 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:38 pm EST.
Sunshine
The average sunshine in December in Monticello is 4.3h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Monticello, New York. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. During bright days, sunglasses that offer UVA and UVB defense are recommended. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Monticello, NY
- Average high temperature in December: 35.6°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 (29.8°F).
- Average low temperature in December: 23.9°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in December
Monticello, 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
Monticello, NY
- Average wind speed in December: 7.1mph
The windiest months (with the highest average wind speed) are January and February (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Monticello, NY
- Average humidity in December: 85%
The months with the highest relative humidity are February and December (85%).
The month with the lowest relative humidity is July (77%).
Average rainfall in December
Monticello, NY
- Average rainfall in December: 2.32"
The wettest month (with the highest rainfall) is May (2.8").
The driest months (with the least rainfall) are January and February (1.65").
Average rainfall days in December
Monticello, NY
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in December
Monticello, NY
- Average snowfall in December: 5.04"
The month with the highest snowfall is December (5.04").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Monticello, NY
- Average snowfall days in December: 8.1 days
The month with the highest number of snowfall days is February (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Monticello, NY
- Average daylight in December: 9h and 12min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 4h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in December
Monticello, NY
- Average sunshine days in December: 16.2 days
The month with the most sunshine days is January (18.3 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in December
Monticello, 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
Monticello, NY
- Average cloud cover in December: 55
The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in December
Monticello, NY
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (5mi).
The months with the lowest visibility are May and September (4mi).
