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
December implies a gentle temperature shift, with average high-temperatures reducing from November's chilly 47.8°F (8.8°C) to a wintry 38.3°F (3.5°C). In Josephine, December is marked by an average low-temperature of 27°F (-2.8°C).Humidity
In Josephine, the average relative humidity in December is 85%.Rainfall
In December, the rain falls for 12.5 days. Throughout December, 3.03" (77mm) of precipitation is accumulated. Throughout the year, there are 183.4 rainfall days, and 33.5" (851mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 13.5 days. Throughout December, 6.22" (158mm) of snow is accumulated. Throughout the year, there are 64.7 snowfall days, and 29.06" (738mm) 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 7:21 am and sunset at 4:50 pm. On the last day of December, sunrise is at 7:39 am and sunset at 5:00 pm EST.
Sunshine
In Josephine, the average sunshine in December is 3.3h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for average individuals.Note: In December, the average maximum UV index of 1 translates into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
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 in Josephine?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Josephine have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Josephine have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Josephine, PA
- Average high temperature in December: 38.3°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.4°F).
- Average low temperature in December: 27°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in December
Josephine, PA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Josephine, PA
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Josephine, PA
- Average humidity in December: 85%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April and July (77%).
Average rainfall in December
Josephine, PA
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is November (1.97").
Average rainfall days in December
Josephine, PA
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is May (20.9 days).
The month with the least rainy days is January (10.3 days).
Average snowfall in December
Josephine, PA
- Average snowfall in December: 6.22"
The month with the highest snowfall is January (7.48").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Josephine, PA
- Average snowfall days in December: 13.5 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Josephine, PA
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in December
Josephine, PA
- Average sunshine days in December: 8.6 days
The month with the most sunshine days is September (14.2 days).
The month with the least sunshine days is January (6.1 days).
Average UV index in December
Josephine, PA
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Josephine, PA
- Average cloud cover in December: 67
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in December
Josephine, PA
- 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).
Josephine, Pennsylvania, USA
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