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 onset of December is marked by a decrease in temperature, transitioning from a chilly 45.1°F (7.3°C) in November to a cold 35.2°F (1.8°C). The temperature in Southport lowers to an average of 25.3°F (-3.7°C) during December nights.Humidity
In December, the average relative humidity in Southport, New York, is 84%.Rainfall
In Southport, New York, in December, during 12.5 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. Throughout the year, there are 172.7 rainfall days, and 29.57" (751mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Southport. In December, it is snowing for 14.9 days. Throughout December, 5.94" (151mm) of snow is accumulated. In Southport, during the entire year, snow falls for 76.6 days and aggregates up to 34.61" (879mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:16 am and sunset at 4:36 pm. On the last day of December, sunrise is at 7:35 am and sunset at 4:45 pm EST.
Sunshine
The average sunshine in December is 3.2h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the average maximum UV index of 1 translates into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Frequently asked questions
How cold is December in Southport?
What is the average humidity in December in Southport?
How much does it rain in Southport in December?
How many days does it snow in December in Southport?
What is the month with the shortest days in Southport?
How many hours of daylight does Southport have in December?
When is the sunrise / sunset in December in Southport?
How long on average sun shines in December in Southport?
When is the lowest UV index in Southport?
How high is the UV index in December in Southport?
Average temperature in December
Southport, 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
Southport, 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
Southport, 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
Southport, 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
Southport, 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
Southport, 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
Southport, 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
Southport, 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
Southport, 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
Southport, 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
Southport, 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
Southport, 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
Southport, 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).
Southport, New York, USA
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