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 onset of December brings a small change in high-temperatures, falling from a chilly 46.2°F (7.9°C) in November to an icy 36.7°F (2.6°C). Boswell records a mean low-temperature of 26.1°F (-3.3°C) in December.Humidity
In Boswell, the average relative humidity in December is 86%.Rainfall
In Boswell, during December, the rain falls for 9.7 days and regularly aggregates up to 2.64" (67mm) of precipitation. In Boswell, during the entire year, the rain falls for 164.4 days and collects up to 30.08" (764mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Boswell, in December, snow falls for 11.1 days, with typically accumulated 5.04" (128mm) of snow. In Boswell, during the entire year, snow falls for 56.8 days and aggregates up to 27.6" (701mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:19 am and sunset at 4:50 pm. On the last day of December, sunrise is at 7:38 am and sunset at 5:00 pm EST.
Sunshine
In December, the average sunshine 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 health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 1 during December translates into these guidelines:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Boswell?
What is the average humidity in December?
How many days does it rain in December in Boswell?
How many days does it snow in December?
What is the month with the shortest days in Boswell?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Boswell have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Boswell, PA
- Average high temperature in December: 36.7°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in December: 26.1°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in December
Boswell, PA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Boswell, PA
- Average wind speed in December: 9.5mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Boswell, PA
- Average humidity in December: 86%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, June and July (79%).
Average rainfall in December
Boswell, PA
- Average rainfall in December: 2.64"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is November (1.65").
Average rainfall days in December
Boswell, PA
- Average rainfall days in December: 9.7 days
The month with the highest number of rainy days is May (19.9 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in December
Boswell, PA
- Average snowfall in December: 5.04"
The month with the highest snowfall is January (6.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Boswell, PA
- Average snowfall days in December: 11.1 days
The month with the highest number of snowfall days is January (15.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Boswell, 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 24min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
Boswell, PA
- Average sunshine days in December: 12.7 days
The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is May (9.3 days).
Average UV index in December
Boswell, PA
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Boswell, PA
- Average cloud cover in December: 68
The month with the most cloud cover is January (Cloud cover 72).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility in December
Boswell, 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).
Boswell, Pennsylvania, USA
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