December weather forecastTully, NY
December
Weather in December
December, the first month of the winter in Tully, is also a wintry month, with an average temperature ranging between max 33.1°F (0.6°C) and min 24.4°F (-4.2°C).Temperature
Tully in December experiences a subtle temperature decline, with average high-temperatures reducing from a chilly 43.7°F (6.5°C) in November to a cold 33.1°F (0.6°C). Tully maintains a consistent average nighttime low-temperature of 24.4°F (-4.2°C) throughout December.Humidity
In December, the average relative humidity is 87%.Rainfall
In December, the rain falls for 7.9 days. Throughout December, 1.81" (46mm) of precipitation is accumulated. Throughout the year, there are 150 rainfall days, and 24.13" (613mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Tully, in December, during 15 snowfall days, 5.83" (148mm) of snow is typically accumulated. Throughout the year, there are 78.2 snowfall days, and 29.37" (746mm) of snow is accumulated.Daylight
December has the shortest days of the year in Tully, New York, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:15 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 4:40 pm EST.
Sunshine
In Tully, New York, the average sunshine in December is 3h.UV index
The months with the lowest UV index in Tully, New York, are January, February and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. 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
Average temperature in December
Tully, NY
- Average high temperature in December: 33.1°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (27.1°F).
- Average low temperature in December: 24.4°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in December
Tully, 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
Tully, NY
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in December
Tully, NY
- Average humidity in December: 87%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (80%).
Average rainfall in December
Tully, NY
- Average rainfall in December: 1.81"
The wettest month (with the highest rainfall) is May (2.64").
The driest month (with the least rainfall) is November (1.57").
Average rainfall days in December
Tully, NY
- Average rainfall days in December: 7.9 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in December
Tully, NY
- Average snowfall in December: 5.83"
The month with the highest snowfall is February (6.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Tully, NY
- Average snowfall days in December: 15 days
The month with the highest number of snowfall days is January (18.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Tully, NY
- Average daylight in December: 9h and 6min
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: 3h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).
Average sunshine days in December
Tully, NY
- Average sunshine days in December: 10.6 days
The month with the most sunshine days is September (15.6 days).
The month with the least sunshine days is February (7.6 days).
Average UV index in December
Tully, 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, February and December (UV index 1).
Average cloud cover in December
Tully, NY
- Average cloud cover in December: 70
The months with the most cloud cover are January and February (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Tully, NY
- Average visibility in December: 5mi
The months with the highest visibility are April, May and October (6mi).
The months with the lowest visibility are January, February, March, June, July, August, September, November and December (5mi).





