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
Transition from November to December is accompanied by a temperature drop, with average high-temperatures decreasing from a chilly 44.8°F (7.1°C) to an icy 33.6°F (0.9°C). Throughout December, the average low-temperature dips to a subzero cold 23.9°F (-4.5°C).Humidity
The average relative humidity in December is 81%.Rainfall
In Johnsonville, in December, during 8.3 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. In Johnsonville, during the entire year, the rain falls for 130.1 days and collects up to 20.55" (522mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 9.4 days. Throughout December, 3.46" (88mm) of snow is accumulated. Throughout the year, in Johnsonville, there are 56.9 snowfall days, and 21.89" (556mm) of snow is accumulated.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:05 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 4:29 pm EST.
Sunshine
In December, the average sunshine is 4.2h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, a daily UV index of 1 turns into the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in Johnsonville in December?
What is the month with the shortest days?
How many hours of daylight does Johnsonville have in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Johnsonville, NY
- Average high temperature in December: 33.6°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in December: 23.9°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in December
Johnsonville, 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
Johnsonville, NY
- Average wind speed in December: 7.2mph
The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Johnsonville, NY
- Average humidity in December: 81%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (73%).
Average rainfall in December
Johnsonville, NY
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is May (2.28").
The driest month (with the least rainfall) is January (1.26").
Average rainfall days in December
Johnsonville, NY
- Average rainfall days in December: 8.3 days
The month with the highest number of rainy days is June (14.9 days).
The months with the least rainy days are January and February (6 days).
Average snowfall in December
Johnsonville, NY
- Average snowfall in December: 3.46"
The month with the highest snowfall is February (5.71").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Johnsonville, NY
- Average snowfall days in December: 9.4 days
The month with the highest number of snowfall days is January (14.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Johnsonville, 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: 4h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in December
Johnsonville, NY
- Average sunshine days in December: 16.3 days
The month with the most sunshine days is September (18.1 days).
The month with the least sunshine days is April (11.2 days).
Average UV index in December
Johnsonville, 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
Johnsonville, NY
- Average cloud cover in December: 55
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Johnsonville, NY
- Average visibility in December: 6mi
The months with the highest visibility are April, May, October, November and December (6mi).
The months with the lowest visibility are January, February, March, June, July, August and September (5mi).
Johnsonville, New York, USA
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