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 transition into December indicates a reduction in the average high-temperature, down to a cold 36.5°F (2.5°C) from November's chilly 46°F (7.8°C). An average low-temperature of 25.5°F (-3.6°C) is noted during the nights in December.Humidity
In Reynoldsville, the average relative humidity in December is 86%.Rainfall
In Reynoldsville, Pennsylvania, in December, during 11.3 rainfall days, 2.87" (73mm) of precipitation is typically accumulated. Throughout the year, there are 172.6 rainfall days, and 34.02" (864mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Reynoldsville. In Reynoldsville, in December, snow falls for 17 days, with typically accumulated 7.4" (188mm) of snow. Throughout the year, there are 80.1 snowfall days, and 38.35" (974mm) 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 4:47 pm. On the last day of December, sunrise is at 7:40 am and sunset at 4:57 pm EST.
Sunshine
In December, the average sunshine is 2.6h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: In December, a daily UV index of 1 turns into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Stay alert! Snow's reflective properties can almost double the UV radiation from 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 Reynoldsville have in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Reynoldsville, PA
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in December: 25.5°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 (17.8°F).
Average pressure in December
Reynoldsville, 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
Reynoldsville, PA
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is January (9mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Reynoldsville, 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
Reynoldsville, PA
- Average rainfall in December: 2.87"
The wettest month (with the highest rainfall) is April (3.74").
The driest months (with the least rainfall) are August and November (2.17").
Average rainfall days in December
Reynoldsville, PA
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is May (19.9 days).
The month with the least rainy days is January (8.4 days).
Average snowfall in December
Reynoldsville, PA
- Average snowfall in December: 7.4"
The month with the highest snowfall is January (10").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Reynoldsville, PA
- Average snowfall days in December: 17 days
The month with the highest number of snowfall days is January (19.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Reynoldsville, 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 42min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in December
Reynoldsville, PA
- Average sunshine days in December: 8.4 days
The month with the most sunshine days is September (13.5 days).
The month with the least sunshine days is February (6.6 days).
Average UV index in December
Reynoldsville, 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
Reynoldsville, 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
Reynoldsville, PA
- Average visibility in December: 4mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February and December (4mi).
Reynoldsville, Pennsylvania, USA
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