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
With the beginning of December, the average high-temperature shows a small decrease, transitioning from a fresh 52.9°F (11.6°C) in November to a chilly 45.3°F (7.4°C). During December, the nighttime temperatures align closely with the daytime averages, measuring an icy 38.3°F (3.5°C).Humidity
The average relative humidity in December is 74%.Rainfall
The month with the most rainfall is December, when the rain falls for 12.9 days and typically aggregates up to 4.06" (103mm) of precipitation.Snowfall
January through March, May and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 2.3 snowfall days, it receives 0.91" (23mm) of snow. In Jamesport, during the entire year, snow falls for 15.4 days and aggregates up to 5.43" (138mm) of snow.Daylight
The month with the shortest days in Jamesport is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 6:56 am and sunset at 4:22 pm. On the last day of December, sunrise is at 7:14 am and sunset at 4:32 pm EST.
Sunshine
With an average of 4.7h of sunshine, December has the least sunshine of the year.UV index
January through March and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 2 during December translates into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What is the average humidity in December?
What is the wettest month?
How many days does it rain in December?
When does it start snowing in Jamesport?
What is the month with the shortest days?
How many hours of daylight does Jamesport have in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Jamesport have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Jamesport, NY
- Average high temperature in December: 45.3°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 (39°F).
- Average low temperature in December: 38.3°F
The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).
Average pressure in December
Jamesport, NY
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Jamesport, NY
- Average wind speed in December: 15.6mph
The windiest month (with the highest average wind speed) is January (15.9mph).
The calmest month (with the lowest average wind speed) is July (10.5mph).
Average humidity in December
Jamesport, NY
- Average humidity in December: 74%
The months with the highest relative humidity are May and June (81%).
The month with the lowest relative humidity is November (72%).
Average rainfall in December
Jamesport, NY
- Average rainfall in December: 4.06"
The wettest month (with the highest rainfall) is December (4.06").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in December
Jamesport, NY
- Average rainfall days in December: 12.9 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is January (9.7 days).
Average snowfall in December
Jamesport, NY
- Average snowfall in December: 0.91"
The month with the highest snowfall is March (1.69").
The months with the least snowfall are April, June, July, August, September, October and November (0").
Average snowfall days in December
Jamesport, NY
- Average snowfall days in December: 2.3 days
The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Jamesport, NY
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in December
Jamesport, NY
- Average sunshine days in December: 14 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is February (12.3 days).
Average UV index in December
Jamesport, NY
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).
Average cloud cover in December
Jamesport, NY
- Average cloud cover in December: 51
The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Jamesport, NY
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Jamesport, New York, USA
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