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
December
Weather in December
Temperature
In Stillwater, entering December brings a temperature decrement, reducing from November's frosty 45.3°F (7.4°C) to a cold 34.3°F (1.3°C). December nights experience a consistent temperature drop to a subzero cold 24.8°F (-4°C).Humidity
In December, the average relative humidity is 81%.Rainfall
In Stillwater, New York, in December, during 11 rainfall days, 2.76" (70mm) of precipitation is typically accumulated. Throughout the year, there are 153.2 rainfall days, and 30.12" (765mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Stillwater, in December, during 8.2 snowfall days, 5.51" (140mm) of snow is typically accumulated. In Stillwater, during the entire year, snow falls for 49.1 days and aggregates up to 28.74" (730mm) of snow.Daylight
December has the shortest days of the year in Stillwater, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:06 am and sunset at 4:21 pm. On the last day of December, sunrise is at 7:25 am and sunset at 4:30 pm EST.
Sunshine
In Stillwater, the average sunshine in December is 4.3h.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 minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 1 in December translates into this advice:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
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?
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 is the sunrise / sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Stillwater, NY
- Average high temperature in December: 34.3°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in December: 24.8°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in December
Stillwater, 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
Stillwater, NY
- Average wind speed in December: 7.3mph
The windiest months (with the highest average wind speed) are January and April (7.7mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Stillwater, NY
- Average humidity in December: 81%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Stillwater, NY
- Average rainfall in December: 2.76"
The wettest month (with the highest rainfall) is October (3.07").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
Stillwater, NY
- Average rainfall days in December: 11 days
The months with the highest number of rainy days are April and May (16.1 days).
The month with the least rainy days is February (8.6 days).
Average snowfall in December
Stillwater, NY
- Average snowfall in December: 5.51"
The month with the highest snowfall is January (8.19").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Stillwater, NY
- Average snowfall days in December: 8.2 days
The month with the highest number of snowfall days is January (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Stillwater, 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 2min
The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in December
Stillwater, NY
- Average sunshine days in December: 14.3 days
The month with the most sunshine days is September (18.1 days).
The month with the least sunshine days is February (11.3 days).
Average UV index in December
Stillwater, 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
Stillwater, NY
- Average cloud cover in December: 54
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
Stillwater, NY
- Average visibility in December: 6mi
The months with the highest visibility are April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, March, August and September (5mi).