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
As December commences, the average high-temperature shows a reduction, transitioning from a chilly 46.2°F (7.9°C) in November to a cold 36.7°F (2.6°C). The average nighttime temperature lowers to a subzero cold 25.7°F (-3.5°C) throughout December.Humidity
In Big Run, the average relative humidity in December is 86%.Rainfall
In Big Run, during December, the rain falls for 10.5 days and regularly aggregates up to 1.73" (44mm) of precipitation. Throughout the year, there are 151.9 rainfall days, and 22.13" (562mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Big Run, Pennsylvania. In December, it is snowing for 14.6 days. Throughout December, 4.21" (107mm) of snow is accumulated. Throughout the year, in Big Run, there are 71 snowfall days, and 22.32" (567mm) of snow is accumulated.Daylight
The month with the shortest days in Big Run is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:21 am and sunset at 4:48 pm. On the last day of December, in Big Run, sunrise is at 7:40 am and sunset at 4:57 pm EST.
Sunshine
In December, the average sunshine is 2.6h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum UV index of 1 during December translates into these guidelines:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
How cold is it in Big Run in December?
What is the average humidity in December in Big Run?
How many days does it rain in December in Big Run?
How much does it snow in Big Run in December?
What is the month with the shortest days in Big Run?
How many hours of daylight does Big Run have in December?
What time are sunrise and sunset in December in Big Run?
How long on average sun shines in December in Big Run?
When is the lowest UV index in Big Run?
How high is the UV index in December in Big Run?
Average temperature in December
Big Run, PA
- Average high temperature in December: 36.7°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.4°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in December
Big Run, 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 (29.95"Hg).
Average wind speed in December
Big Run, PA
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Big Run, PA
- Average humidity in December: 86%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are June, July and August (78%).
Average rainfall in December
Big Run, PA
- Average rainfall in December: 1.73"
The wettest month (with the highest rainfall) is April (2.48").
The driest month (with the least rainfall) is November (1.26").
Average rainfall days in December
Big Run, PA
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in December
Big Run, PA
- Average snowfall in December: 4.21"
The month with the highest snowfall is January (5.63").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Big Run, PA
- Average snowfall days in December: 14.6 days
The month with the highest number of snowfall days is January (18.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Big Run, 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 months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in December
Big Run, PA
- Average sunshine days in December: 9.2 days
The month with the most sunshine days is September (15.3 days).
The month with the least sunshine days is February (7.8 days).
Average UV index in December
Big Run, 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
Big Run, 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 39).
Average visibility in December
Big Run, 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).
Big Run, Pennsylvania, USA
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