December weather forecastMonsey, NY
December
Weather in December
December, the first month of the winter in Monsey, is also a wintry month, with an average temperature varying between 40.3°F (4.6°C) and 29.3°F (-1.5°C).Temperature
With the onset of December, Monsey experiences a modest temperature adjustment, with the average high-temperature receding from a fresh 50.2°F (10.1°C) in November to a wintry 40.3°F (4.6°C). In the month of December, the nighttime temperature dips to a steady average of 29.3°F (-1.5°C).Humidity
The average relative humidity in December is 78%.Rainfall
In December, the rain falls for 9.5 days. Throughout December, 2.6" (66mm) of precipitation is accumulated. In Monsey, New York, during the entire year, the rain falls for 143.9 days and collects up to 25.59" (650mm) of precipitation.Snowfall
Months with snowfall in Monsey are January through April, October through December. In Monsey, in December, during 3.2 snowfall days, 2.09" (53mm) of snow is typically accumulated. In Monsey, during the entire year, snow falls for 22.9 days and aggregates up to 14.33" (364mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:02 am and sunset at 4:28 pm. On the last day of December, in Monsey, sunrise is at 7:21 am and sunset at 4:37 pm EST.
Sunshine
In December, the average sunshine in Monsey is 4.9h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: In December, an average UV index of 2 transforms into the following instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Monsey, NY
- Average high temperature in December: 40.3°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in December
Monsey, 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
Monsey, NY
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Monsey, NY
- Average humidity in December: 78%
The month with the highest relative humidity is February (79%).
The months with the lowest relative humidity are July and August (71%).
Average rainfall in December
Monsey, NY
- Average rainfall in December: 2.6"
The wettest month (with the highest rainfall) is July (2.76").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in December
Monsey, NY
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in December
Monsey, NY
- Average snowfall in December: 2.09"
The month with the highest snowfall is March (4.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Monsey, NY
- Average snowfall days in December: 3.2 days
The month with the highest number of snowfall days is February (6.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Monsey, NY
- Average daylight in December: 9h and 18min
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 18min).
- Average sunshine in December: 4h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Monsey, NY
- Average sunshine days in December: 19 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in December
Monsey, NY
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Monsey, NY
- Average cloud cover in December: 48
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Monsey, NY
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are February and May (5mi).
