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 signals a slight drop in average high-temperature, sliding from November's cool 52.3°F (11.3°C) to a frosty 43.7°F (6.5°C). In Crabtree Hollow, the average low-temperature during the month of December is a cold 32.4°F (0.2°C).Humidity
In December, the average relative humidity is 77%.Rainfall
In Crabtree Hollow, Pennsylvania, during December, the rain falls for 10.9 days and regularly aggregates up to 3.19" (81mm) of precipitation. Throughout the year, in Crabtree Hollow, there are 154.4 rainfall days, and 31.38" (797mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall in Crabtree Hollow. In Crabtree Hollow, Pennsylvania, in December, during 2.8 snowfall days, 1.22" (31mm) of snow is typically accumulated. In Crabtree Hollow, during the entire year, snow falls for 15.9 days and aggregates up to 8.5" (216mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:03 am and sunset at 4:34 pm. On the last day of December, sunrise is at 7:21 am and sunset at 4:43 pm EST.
Sunshine
The average sunshine in December in Crabtree Hollow, Pennsylvania, is 5h.UV index
The months with the lowest UV index in Crabtree Hollow are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: In December, the maximum UV index of 2 translates into these guidelines:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Frequently asked questions
How cold is it in Crabtree Hollow in December?
What is the average humidity in December in Crabtree Hollow?
How much does it rain in Crabtree Hollow in December?
How many days does it snow in December in Crabtree Hollow?
What is the month with the shortest days in Crabtree Hollow?
What is the average length of the day in December in Crabtree Hollow?
When is the sunrise / sunset in December in Crabtree Hollow?
How long on average sun shines in December in Crabtree Hollow?
What is the month with the lowest UV index in Crabtree Hollow?
How high is the UV index in December in Crabtree Hollow?
Average temperature in December
Crabtree Hollow, PA
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in December: 32.4°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in December
Crabtree Hollow, PA
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Crabtree Hollow, PA
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in December
Crabtree Hollow, PA
- Average humidity in December: 77%
The months with the highest relative humidity are February and October (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Crabtree Hollow, PA
- Average rainfall in December: 3.19"
The wettest month (with the highest rainfall) is July (3.66").
The driest month (with the least rainfall) is January (1.89").
Average rainfall days in December
Crabtree Hollow, PA
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is January (8 days).
Average snowfall in December
Crabtree Hollow, PA
- Average snowfall in December: 1.22"
The month with the highest snowfall is March (2.99").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Crabtree Hollow, PA
- Average snowfall days in December: 2.8 days
The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Crabtree Hollow, 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: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Crabtree Hollow, PA
- Average sunshine days in December: 18.1 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (9.9 days).
Average UV index in December
Crabtree Hollow, PA
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Crabtree Hollow, PA
- Average cloud cover in December: 46
The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Crabtree Hollow, PA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Crabtree Hollow, Pennsylvania, USA
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