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 coincides with a reduction in the average high-temperature, falling from a chilly 44.4°F (6.9°C) in November to a wintry 34°F (1.1°C). December generally records an average low-temperature of 24.8°F (-4°C).Humidity
In December, the average relative humidity in Jacksonville is 86%.Rainfall
In December, in Jacksonville, the rain falls for 9.8 days. Throughout December, 2.36" (60mm) of precipitation is accumulated. In Jacksonville, during the entire year, the rain falls for 167.1 days and collects up to 31.65" (804mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, in Jacksonville, New York, it is snowing for 16 days. Throughout December, 6.77" (172mm) of snow is accumulated. In Jacksonville, during the entire year, snow falls for 83.4 days and aggregates up to 34.65" (880mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:17 am and sunset at 4:34 pm. On the last day of December, in Jacksonville, sunrise is at 7:36 am and sunset at 4:43 pm EST.
Sunshine
In December, the average sunshine in Jacksonville is 2.9h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.Note: In December, a daily UV index of 1 turns into the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Jacksonville in December?
What is the average humidity in December in Jacksonville?
How many days does it rain in December in Jacksonville?
How many days does it snow in December in Jacksonville?
What is the month with the shortest days in Jacksonville?
What is the average length of the day in December in Jacksonville?
What time are sunrise and sunset in December in Jacksonville?
How many hours of sunshine does Jacksonville have in December?
When is the lowest UV index in Jacksonville?
How high is the UV index in December in Jacksonville?
Average temperature in December
Jacksonville, NY
- Average high temperature in December: 34°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in December: 24.8°F
The month with the highest average low temperature is July (58.3°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in December
Jacksonville, 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
Jacksonville, NY
- Average wind speed in December: 9.5mph
The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).
Average humidity in December
Jacksonville, NY
- Average humidity in December: 86%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is April (78%).
Average rainfall in December
Jacksonville, NY
- Average rainfall in December: 2.36"
The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in December
Jacksonville, NY
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in December
Jacksonville, NY
- Average snowfall in December: 6.77"
The month with the highest snowfall is February (8.11").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Jacksonville, NY
- Average snowfall days in December: 16 days
The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Jacksonville, 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 6min).
- Average sunshine in December: 2h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 2h and 36min).
Average sunshine days in December
Jacksonville, NY
- Average sunshine days in December: 8.6 days
The month with the most sunshine days is September (14.1 days).
The month with the least sunshine days is February (5.8 days).
Average UV index in December
Jacksonville, NY
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Jacksonville, NY
- Average cloud cover in December: 71
The months with the most cloud cover are January and February (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 36).
Average visibility in December
Jacksonville, NY
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
Jacksonville, New York, USA
Weather forecast for your location
2. Allow the app to use your location