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
In December, the average high-temperature decreases from a frosty 48.2°F (9°C) in November to a wintry 38.5°F (3.6°C). Johnsonburg, during the month of December, experiences an average low-temperature of 27.3°F (-2.6°C).Humidity
February and December, with an average relative humidity of 82%, are the most humid months.Rainfall
In Johnsonburg, in December, it is raining for 5.6 days, with typically 0.67" (17mm) of accumulated precipitation. Throughout the year, in Johnsonburg, there are 89.8 rainfall days, and 8.07" (205mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Johnsonburg, in December, during 3.4 snowfall days, 0.71" (18mm) of snow is typically accumulated. Throughout the year, in Johnsonburg, there are 22.7 snowfall days, and 3.54" (90mm) of snow is accumulated.Daylight
December has the shortest days of the year in Johnsonburg, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:05 am and sunset at 4:32 pm. On the last day of December, sunrise is at 7:24 am and sunset at 4:41 pm EST.
Sunshine
In Johnsonburg, the average sunshine in December is 4.6h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 1 in December converts into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Johnsonburg in December?
What is the most humid month in Johnsonburg?
What is the average humidity in December in Johnsonburg?
How much does it rain in Johnsonburg in December?
How many days does it snow in December in Johnsonburg?
What is the month with the shortest days in Johnsonburg?
How many hours of daylight does Johnsonburg have in December?
When is the sunrise / sunset in December in Johnsonburg?
How long on average sun shines in December in Johnsonburg?
What is the month with the lowest UV index in Johnsonburg?
How high is the UV index in December in Johnsonburg?
Average temperature in December
Johnsonburg, NJ
- Average high temperature in December: 38.5°F
The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (33.3°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in December
Johnsonburg, NJ
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Johnsonburg, NJ
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is March (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Johnsonburg, NJ
- Average humidity in December: 82%
The months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Johnsonburg, NJ
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is July (0.98").
The driest month (with the least rainfall) is September (0.24").
Average rainfall days in December
Johnsonburg, NJ
- Average rainfall days in December: 5.6 days
The months with the highest number of rainy days are April and May (10.5 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in December
Johnsonburg, NJ
- Average snowfall in December: 0.71"
The months with the highest snowfall are January and February (0.91").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Johnsonburg, NJ
- Average snowfall days in December: 3.4 days
The month with the highest number of snowfall days is February (7.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Johnsonburg, NJ
- 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 6min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in December
Johnsonburg, NJ
- Average sunshine days in December: 23.1 days
The month with the most sunshine days is September (23.2 days).
The month with the least sunshine days is April (18 days).
Average UV index in December
Johnsonburg, NJ
- Average UV index in December: 1
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Johnsonburg, NJ
- Average cloud cover in December: 51
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in December
Johnsonburg, NJ
- 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).
Johnsonburg, New Jersey, USA
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