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 decrease of average high-temperatures is mild in December, with a decline from a chilly 47.5°F (8.6°C) in November to an icy 38.1°F (3.4°C). Jonesville records a mean low-temperature of 27.3°F (-2.6°C) in December.Humidity
The months with the highest humidity are February and December, with an average relative humidity of 83%.Rainfall
In December, the rain falls for 9.2 days. Throughout December, 2.09" (53mm) of precipitation is accumulated. Throughout the year, there are 150.3 rainfall days, and 26.61" (676mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 4.1 days. Throughout December, 2.36" (60mm) of snow is accumulated. Throughout the year, there are 26.6 snowfall days, and 14.25" (362mm) of snow is accumulated.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:07 am and sunset at 4:35 pm. On the last day of December, sunrise is at 7:26 am and sunset at 4:44 pm EST.
Sunshine
In December, the average sunshine is 4.4h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: In December, the maximum UV index of 2 translates into these guidelines:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in December?
What are the most humid months?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days in Jonesville?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Jonesville have in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Jonesville, PA
- Average high temperature in December: 38.1°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in December
Jonesville, PA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Jonesville, PA
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Jonesville, PA
- Average humidity in December: 83%
The months with the highest relative humidity are February and December (83%).
The months with the lowest relative humidity are April and July (77%).
Average rainfall in December
Jonesville, PA
- Average rainfall in December: 2.09"
The wettest month (with the highest rainfall) is July (2.87").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in December
Jonesville, PA
- Average rainfall days in December: 9.2 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in December
Jonesville, PA
- Average snowfall in December: 2.36"
The month with the highest snowfall is March (4.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Jonesville, PA
- Average snowfall days in December: 4.1 days
The month with the highest number of snowfall days is February (7.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Jonesville, PA
- 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in December
Jonesville, PA
- Average sunshine days in December: 18.8 days
The month with the most sunshine days is January (19.5 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in December
Jonesville, PA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Jonesville, PA
- Average cloud cover in December: 54
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in December
Jonesville, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Jonesville, Pennsylvania, USA
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