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 average high-temperature drops in December, from November's chilly 42.8°F (6°C) to an icy 32°F (0°C). Throughout the month of December, Deer River witnesses an average low-temperature of 22.5°F (-5.3°C).Humidity
The average relative humidity in December is 85%.Rainfall
In Deer River, during December, the rain falls for 9.8 days and regularly aggregates up to 2.76" (70mm) of precipitation. 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
December has the shortest days of the year, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 7:17 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:34 pm EST.
Sunshine
In Deer River, the average sunshine in December is 3.1h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.Note: A daily maximum UV index of 1 in December translates into the following instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
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 in Deer River?
How many days does it rain in December?
When does it snow the most in Deer River?
How many days does it snow in December?
What is the month with the shortest days in Deer River?
How many hours of daylight does Deer River have in December?
When are sunrise and sunset in December?
How long on average sun shines in December in Deer River?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Deer River, 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
Deer River, 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
Deer River, 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
Deer River, 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
Deer River, 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
Deer River, 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
Deer River, 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
Deer River, 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
Deer River, 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
Deer River, 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
Deer River, 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
Deer River, 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
Deer River, 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).
Deer River, New York, USA
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