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
December marks a gentle change in average high-temperature, declining from November's frosty 44.1°F (6.7°C) to a cold 35.4°F (1.9°C). An average low-temperature of 27°F (-2.8°C), slightly less than the daytime peak, marks the month of December.Humidity
The average relative humidity in December is 86%.Rainfall
In December, the rain falls for 10 days. Throughout December, 2.52" (64mm) of precipitation is accumulated. Throughout the year, in Sherman, there are 170.7 rainfall days, and 30.98" (787mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Sherman, during December, snow falls for 17.1 days and regularly aggregates up to 7.56" (192mm) of snow. Throughout the year, there are 82.7 snowfall days, and 33.07" (840mm) 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 the month, sunrise is at 7:27 am and sunset at 4:47 pm. On the last day of December, sunrise is at 7:46 am and sunset at 4:56 pm EST.
Sunshine
In December, the average sunshine is 2.4h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index of 1 during December translates into these guidelines:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
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 in Sherman?
How many hours of daylight does Sherman have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Sherman have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Sherman, NY
- Average high temperature in December: 35.4°F
The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is January (28.8°F).
- Average low temperature in December: 27°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in December
Sherman, NY
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Sherman, NY
- Average wind speed in December: 11.1mph
The windiest month (with the highest average wind speed) is January (11.7mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in December
Sherman, NY
- Average humidity in December: 86%
The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are April and September (81%).
Average rainfall in December
Sherman, NY
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in December
Sherman, NY
- Average rainfall days in December: 10 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (7.8 days).
Average snowfall in December
Sherman, NY
- Average snowfall in December: 7.56"
The month with the highest snowfall is February (7.64").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Sherman, NY
- Average snowfall days in December: 17.1 days
The month with the highest number of snowfall days is January (20.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sherman, 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: 2h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in December
Sherman, NY
- Average sunshine days in December: 5.8 days
The month with the most sunshine days is September (12.4 days).
The month with the least sunshine days is January (4.9 days).
Average UV index in December
Sherman, 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
Sherman, NY
- Average cloud cover in December: 76
The month with the most cloud cover is January (Cloud cover 79).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Sherman, 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).
Sherman, New York, USA
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