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 arrival of December signals a shift in temperature, down from a frosty 45.7°F (7.6°C) in November to an icy 36.1°F (2.3°C). Throughout December, Clarks Mills witnesses a consistent average low-temperature of 25.9°F (-3.4°C).Humidity
The average relative humidity in December is 88%.Rainfall
In Clarks Mills, during December, the rain falls for 11.3 days and regularly aggregates up to 2.87" (73mm) of precipitation. In Clarks Mills, during the entire year, the rain falls for 174.1 days and collects up to 34.65" (880mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 17.3 days. Throughout December, 7.87" (200mm) of snow is accumulated. Throughout the year, there are 83.8 snowfall days, and 39.13" (994mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:28 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:46 am and sunset at 5:01 pm EST.
Sunshine
In Clarks Mills, Pennsylvania, the average sunshine in December is 2.6h.UV index
The month with the lowest UV index in Clarks Mills is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: In December, an average UV index of 1 transforms into the following instructions:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
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 much does it rain in Clarks Mills in December?
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 are sunrise and sunset in December?
How many hours of sunshine does Clarks Mills have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Clarks Mills, PA
- Average high temperature in December: 36.1°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in December: 25.9°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in December
Clarks Mills, 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
Clarks Mills, PA
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Clarks Mills, PA
- Average humidity in December: 88%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is May (79%).
Average rainfall in December
Clarks Mills, PA
- Average rainfall in December: 2.87"
The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is September (2.28").
Average rainfall days in December
Clarks Mills, PA
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in December
Clarks Mills, PA
- Average snowfall in December: 7.87"
The month with the highest snowfall is January (10.31").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Clarks Mills, PA
- Average snowfall days in December: 17.3 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
Clarks Mills, PA
- Average daylight in December: 9h and 1min
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 12min).
- Average sunshine in December: 2h and 4min
The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in December
Clarks Mills, PA
- Average sunshine days in December: 7 days
The month with the most sunshine days is September (12.8 days).
The month with the least sunshine days is February (5.8 days).
Average UV index in December
Clarks Mills, 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
Clarks Mills, PA
- Average cloud cover in December: 73
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in December
Clarks Mills, PA
- Average visibility in December: 4mi
The months with the highest visibility are March, April, May, June, July, August, October and November (5mi).
The months with the lowest visibility are January, February, September and December (4mi).
Clarks Mills, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location