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 brings a minor decrease, with the average high-temperature reducing from a frosty 45.9°F (7.7°C) in November to a cold 36.5°F (2.5°C). Limestone, during December, witnesses an average low-temperature of 25.7°F (-3.5°C).Humidity
In December, the average relative humidity is 86%.Rainfall
In Limestone, during December, the rain falls for 12.5 days and regularly aggregates up to 1.97" (50mm) of precipitation. In Limestone, during the entire year, the rain falls for 169.8 days and collects up to 27.36" (695mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Limestone, in December, during 16.9 snowfall days, 5" (127mm) of snow is typically accumulated. Throughout the year, there are 80.5 snowfall days, and 26.02" (661mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:23 am and sunset at 4:49 pm. On the last day of December, sunrise is at 7:42 am and sunset at 4:58 pm EST.
Sunshine
In December, the average sunshine is 2.7h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 1 translates into these guidelines:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Attention! Nearly twice the Sun's UV radiation can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How many days does it rain in December in Limestone?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Limestone, PA
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in December
Limestone, PA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Limestone, PA
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Limestone, PA
- Average humidity in December: 86%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is July (78%).
Average rainfall in December
Limestone, PA
- Average rainfall in December: 1.97"
The wettest month (with the highest rainfall) is April (3.15").
The driest month (with the least rainfall) is August (1.69").
Average rainfall days in December
Limestone, PA
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in December
Limestone, PA
- Average snowfall in December: 5"
The month with the highest snowfall is January (7.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Limestone, PA
- Average snowfall days in December: 16.9 days
The month with the highest number of snowfall days is January (21.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Limestone, 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 54min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in December
Limestone, PA
- Average sunshine days in December: 6.6 days
The month with the most sunshine days is September (14 days).
The month with the least sunshine days is February (5.7 days).
Average UV index in December
Limestone, 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
Limestone, PA
- Average cloud cover in December: 72
The month with the most cloud cover is January (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 38).
Average visibility in December
Limestone, PA
- Average visibility in December: 4mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February and December (4mi).
Limestone, Pennsylvania, USA
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