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
Observing a mild shift, the average high-temperature during December reduces from November's chilly 44.8°F (7.1°C) to a cold 34.7°F (1.5°C). Pennellville's nighttime average temperature in December drops marginally from the daytime highs, settling at a freezing cold 26.8°F (-2.9°C).Humidity
In Pennellville, the average relative humidity in December is 83%.Rainfall
In Pennellville, during December, the rain falls for 11.3 days and regularly aggregates up to 3.27" (83mm) of precipitation. Throughout the year, there are 182.9 rainfall days, and 38.98" (990mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Pennellville, in December, snow falls for 15.5 days, with typically accumulated 7.76" (197mm) of snow. Throughout the year, there are 78.6 snowfall days, and 36.42" (925mm) of snow is accumulated.Daylight
The month with the shortest days in Pennellville is December, with an average of 9h and 0min of daylight.On the first day of December in Pennellville, sunrise is at 7:18 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:39 pm EST.
Sunshine
The average sunshine in December is 3h.UV index
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Pennellville. A UV Index estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 1 in December converts into the following recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
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 December?
How much 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 long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Pennellville, NY
- Average high temperature in December: 34.7°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in December: 26.8°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in December
Pennellville, NY
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Pennellville, NY
- Average wind speed in December: 11.1mph
The windiest month (with the highest average wind speed) is January (11.5mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in December
Pennellville, NY
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, September and November (78%).
Average rainfall in December
Pennellville, NY
- Average rainfall in December: 3.27"
The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is September (2.52").
Average rainfall days in December
Pennellville, NY
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is August (18.9 days).
The month with the least rainy days is January (9 days).
Average snowfall in December
Pennellville, NY
- Average snowfall in December: 7.76"
The month with the highest snowfall is February (8.82").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Pennellville, NY
- Average snowfall days in December: 15.5 days
The month with the highest number of snowfall days is January (19.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Pennellville, NY
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 3h and 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).
Average sunshine days in December
Pennellville, NY
- Average sunshine days in December: 6.7 days
The month with the most sunshine days is September (13 days).
The month with the least sunshine days is February (4.4 days).
Average UV index in December
Pennellville, NY
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in December
Pennellville, NY
- Average cloud cover in December: 71
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 29).
Average visibility in December
Pennellville, NY
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Pennellville, New York, USA
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