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
Setting in of December comes with a decrease in the average high-temperature, moving from a frosty 44.8°F (7.1°C) in November to an icy 34.2°F (1.2°C). Jamesville registers a small shift from peak daytime temperatures, with a consistent average low-temperature of 25.2°F (-3.8°C) during December.Humidity
The average relative humidity in December is 85%.Rainfall
In December, the rain falls for 8.8 days. Throughout December, 1.97" (50mm) of precipitation is accumulated. In Jamesville, during the entire year, the rain falls for 148.8 days and collects up to 25" (635mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 13.3 days and typically aggregates up to 5.87" (149mm) of snow.Daylight
December has the shortest days of the year in Jamesville, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:16 am and sunset at 4:30 pm. On the last day of December, in Jamesville, New York, sunrise is at 7:35 am and sunset at 4:39 pm EST.
Sunshine
In December, the average sunshine is 2.9h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the maximum UV index of 1 suggests these recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. To protect against the Sun's most potent rays, avoid direct exposure around midday. Opt for tightly woven and loose clothing to enhance protection from the Sun. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
How cold is December in Jamesville?
What is the average humidity in December in Jamesville?
How much does it rain in Jamesville in December?
When does it snow the most in Jamesville?
How much does it snow in Jamesville in December?
What is the month with the shortest days in Jamesville?
How many hours of daylight does Jamesville have in December?
When is the sunrise / sunset in December in Jamesville?
How long on average sun shines in December in Jamesville?
When is the lowest UV index in Jamesville?
What is the UV index intensity in December in Jamesville?
Average temperature in December
Jamesville, NY
- Average high temperature in December: 34.2°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (28°F).
- Average low temperature in December: 25.2°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in December
Jamesville, NY
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Jamesville, NY
- Average wind speed in December: 9.9mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).
Average humidity in December
Jamesville, NY
- Average humidity in December: 85%
The months with the highest relative humidity are January and February (87%).
The months with the lowest relative humidity are April and May (78%).
Average rainfall in December
Jamesville, NY
- Average rainfall in December: 1.97"
The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is January (1.42").
Average rainfall days in December
Jamesville, NY
- Average rainfall days in December: 8.8 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (6 days).
Average snowfall in December
Jamesville, NY
- Average snowfall in December: 5.87"
The month with the highest snowfall is December (5.87").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Jamesville, NY
- Average snowfall days in December: 13.3 days
The month with the highest number of snowfall days is January (16.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Jamesville, NY
- Average daylight in December: 9h and 1min
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: 2h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).
Average sunshine days in December
Jamesville, NY
- Average sunshine days in December: 11.4 days
The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in December
Jamesville, 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
Jamesville, NY
- Average cloud cover in December: 71
The months with the most cloud cover are January and February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in December
Jamesville, NY
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Jamesville, New York, USA
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