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
The decrease of average high-temperatures is mild in December, with a decline from a chilly 43.9°F (6.6°C) in November to a wintry 33.1°F (0.6°C). Nighttime temperatures hover around an average low of 23.9°F (-4.5°C) in December.Humidity
In Middle Grove, the average relative humidity in December is 81%.Rainfall
In December, the rain falls for 11.4 days. Throughout December, 2.76" (70mm) of precipitation is accumulated. Throughout the year, there are 159.7 rainfall days, and 31.22" (793mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Middle Grove, during December, snow falls for 12.5 days and regularly aggregates up to 7.99" (203mm) of snow. In Middle Grove, during the entire year, snow falls for 65.2 days and aggregates up to 40" (1016mm) 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 7:08 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:30 pm EST.
Sunshine
The average sunshine in December is 4.1h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A maximum UV index of 1 in December translates into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How long on average sun shines in December in Middle Grove?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Middle Grove, NY
- Average high temperature in December: 33.1°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in December: 23.9°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure in December
Middle Grove, 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
Middle Grove, NY
- Average wind speed in December: 6.9mph
The windiest month (with the highest average wind speed) is April (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Middle Grove, NY
- Average humidity in December: 81%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Middle Grove, NY
- Average rainfall in December: 2.76"
The wettest month (with the highest rainfall) is October (3.23").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in December
Middle Grove, NY
- Average rainfall days in December: 11.4 days
The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is February (8.7 days).
Average snowfall in December
Middle Grove, NY
- Average snowfall in December: 7.99"
The month with the highest snowfall is February (10.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Middle Grove, NY
- Average snowfall days in December: 12.5 days
The month with the highest number of snowfall days is January (16 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Middle Grove, 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: 4h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in December
Middle Grove, NY
- Average sunshine days in December: 12.2 days
The month with the most sunshine days is September (15.6 days).
The month with the least sunshine days is February (10 days).
Average UV index in December
Middle Grove, 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 and December (UV index 1).
Average cloud cover in December
Middle Grove, NY
- Average cloud cover in December: 55
The month with the most cloud cover is February (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in December
Middle Grove, NY
- Average visibility in December: 5mi
The months with the highest visibility are April, July and November (6mi).
The months with the lowest visibility are January, February, March, May, June, August, September, October and December (5mi).
Middle Grove, New York, USA
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