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
Big Flats in December experiences a subtle temperature decline, with average high-temperatures reducing from a frosty 45.1°F (7.3°C) in November to a wintry 35.2°F (1.8°C). Big Flats's average low-temperature during December nights is observed to be a freezing cold 25.3°F (-3.7°C).Humidity
The average relative humidity in December is 84%.Rainfall
In Big Flats, during December, the rain falls for 12.5 days and regularly aggregates up to 2.28" (58mm) of precipitation. Throughout the year, there are 172.7 rainfall days, and 29.57" (751mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Big Flats, in December, during 14.9 snowfall days, 5.94" (151mm) of snow is typically accumulated. Throughout the year, there are 76.6 snowfall days, and 34.61" (879mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:17 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:46 pm EST.
Sunshine
The average sunshine in December is 3.2h.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 exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 1 in December translates into these instructions:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Warning! The reflection from snow can nearly 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 it in December?
What is the average humidity in December?
How many days does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Big Flats have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Big Flats, NY
- Average high temperature in December: 35.2°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in December: 25.3°F
The month with the highest average low temperature is July (57.7°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).
Average pressure in December
Big Flats, NY
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Big Flats, NY
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in December
Big Flats, NY
- Average humidity in December: 84%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, May, June and July (78%).
Average rainfall in December
Big Flats, NY
- Average rainfall in December: 2.28"
The wettest month (with the highest rainfall) is April (3.07").
The driest months (with the least rainfall) are January and November (1.89").
Average rainfall days in December
Big Flats, NY
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in December
Big Flats, NY
- Average snowfall in December: 5.94"
The month with the highest snowfall is February (8.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Big Flats, NY
- Average snowfall days in December: 14.9 days
The month with the highest number of snowfall days is January (17.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Big Flats, NY
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 6min).
Average sunshine days in December
Big Flats, NY
- Average sunshine days in December: 8.6 days
The month with the most sunshine days is September (14.2 days).
The month with the least sunshine days is February (7.3 days).
Average UV index in December
Big Flats, 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
Big Flats, NY
- Average cloud cover in December: 68
The months with the most cloud cover are January and February (Cloud cover 69).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in December
Big Flats, NY
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Big Flats, New York, USA
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