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's onset brings a slight change in high-temperatures, falling from a frosty 47.1°F (8.4°C) in November to a cold 37.2°F (2.9°C). Throughout the December nights, North Washington encounters a low-temperature of 25.9°F (-3.4°C).Humidity
In North Washington, the average relative humidity in December is 86%.Rainfall
In North Washington, in December, during 8.2 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. In North Washington, during the entire year, the rain falls for 140.7 days and collects up to 15.43" (392mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In North Washington, in December, snow falls for 9.5 days, with typically accumulated 1.06" (27mm) of snow. Throughout the year, there are 48.2 snowfall days, and 6.85" (174mm) 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 7:25 am and sunset at 4:51 pm. On the last day of December, sunrise is at 7:44 am and sunset at 5:01 pm EST.
Sunshine
The average sunshine in December is 2.7h.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 low health risk from exposure to the Sun's UV rays for average individuals.Note: An average maximum UV index of 1 in December leads to these recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
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 December?
What is the month with the shortest days?
How many hours of daylight does North Washington have in December?
When are sunrise and sunset in December?
How many hours of sunshine does North Washington have in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
North Washington, PA
- Average high temperature in December: 37.2°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 (31.3°F).
- Average low temperature in December: 25.9°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 (18.5°F).
Average pressure in December
North Washington, PA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
North Washington, PA
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is January (8.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
North Washington, PA
- Average humidity in December: 86%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April, June, July and August (78%).
Average rainfall in December
North Washington, PA
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is November (0.87").
Average rainfall days in December
North Washington, PA
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in December
North Washington, PA
- Average snowfall in December: 1.06"
The month with the highest snowfall is January (1.93").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
North Washington, PA
- Average snowfall days in December: 9.5 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
North Washington, 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: 2h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in December
North Washington, PA
- Average sunshine days in December: 17.1 days
The month with the most sunshine days is December (17.1 days).
The month with the least sunshine days is July (12.2 days).
Average UV index in December
North Washington, PA
- 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
North Washington, PA
- Average cloud cover in December: 72
The month with the most cloud cover is January (Cloud cover 75).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in December
North Washington, 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).
North Washington, Pennsylvania, USA
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