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 onset of December brings a small change in high-temperatures, falling from a chilly 42.8°F (6°C) in November to a cold 32°F (0°C). The nighttime temperature, during December, averages of 22.5°F (-5.3°C).Humidity
The average relative humidity in December is 85%.Rainfall
In December, the rain falls for 9.8 days. Throughout December, 2.76" (70mm) of precipitation is accumulated. Throughout the year, there are 154.6 rainfall days, and 28.27" (718mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. December is the month with the most snowfall. Snow falls for 16 days and accumulates 9.25" (235mm) of snow.Daylight
The month with the shortest days in Deferiet is December, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 7:18 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:34 pm EST.
Sunshine
The average sunshine in December is 3.1h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the average maximum UV index of 1 translates into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. 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
How cold is December?
What is the average humidity in December?
How much does it rain in December?
When does it snow the most?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Deferiet have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Deferiet have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Deferiet, NY
- Average high temperature in December: 32°F
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in December: 22.5°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 (13.3°F).
Average pressure in December
Deferiet, NY
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Deferiet, NY
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in December
Deferiet, NY
- Average humidity in December: 85%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Deferiet, NY
- Average rainfall in December: 2.76"
The wettest month (with the highest rainfall) is October (3.03").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in December
Deferiet, NY
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is October (16.8 days).
The month with the least rainy days is February (6.6 days).
Average snowfall in December
Deferiet, NY
- Average snowfall in December: 9.25"
The month with the highest snowfall is December (9.25").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Deferiet, NY
- Average snowfall days in December: 16 days
The month with the highest number of snowfall days is January (18.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Deferiet, NY
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and February (Average sunshine: 2h and 48min).
Average sunshine days in December
Deferiet, NY
- Average sunshine days in December: 8.6 days
The month with the most sunshine days is September (15.2 days).
The month with the least sunshine days is February (8.3 days).
Average UV index in December
Deferiet, 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
Deferiet, NY
- Average cloud cover in December: 69
The months with the most cloud cover are January and February (Cloud cover 73).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Deferiet, NY
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Deferiet, New York, USA
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