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
Onset of December witnesses a reduction in the average high-temperature, falling from a fresh 50.9°F (10.5°C) in November to a wintry 41.9°F (5.5°C). Nighttime temperature in Barneston lowers to an average of 30.6°F (-0.8°C) in December.Humidity
The average relative humidity in December is 79%.Rainfall
In Barneston, in December, it is raining for 8.6 days, with typically 2.05" (52mm) of accumulated precipitation. Throughout the year, in Barneston, Pennsylvania, there are 145.6 rainfall days, and 26.81" (681mm) of precipitation is accumulated.Snowfall
Months with snowfall in Barneston are January through May, October through December. In Barneston, in December, during 2 snowfall days, 1.54" (39mm) of snow is typically accumulated. Throughout the year, there are 17.2 snowfall days, and 10.47" (266mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Barneston, Pennsylvania.On the first day of the month, sunrise is at 7:06 am and sunset at 4:38 pm. On the last day of December, in Barneston, Pennsylvania, sunrise is at 7:25 am and sunset at 4:47 pm EST.
Sunshine
In December, the average sunshine in Barneston is 4.8h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Barneston. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high UV index of 2 in December translates into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Boost your sun resistance with garments that are densely woven yet spacious. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Barneston in December?
What is the average humidity in December in Barneston?
How many days does it rain in December in Barneston?
How much does it snow in Barneston in December?
What is the month with the shortest days in Barneston?
What is the average length of the day in December in Barneston?
When are sunrise and sunset in December in Barneston?
How many hours of sunshine does Barneston have in December?
What are the months with the lowest UV index in Barneston?
How high is the UV index in December in Barneston?
Average temperature in December
Barneston, PA
- Average high temperature in December: 41.9°F
The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in December: 30.6°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average pressure in December
Barneston, 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
Barneston, PA
- Average wind speed in December: 8mph
The windiest months (with the highest average wind speed) are January and March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Barneston, PA
- Average humidity in December: 79%
The months with the highest relative humidity are February, May and October (80%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Barneston, PA
- Average rainfall in December: 2.05"
The wettest month (with the highest rainfall) is August (3.31").
The driest month (with the least rainfall) is February (1.61").
Average rainfall days in December
Barneston, PA
- Average rainfall days in December: 8.6 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in December
Barneston, PA
- Average snowfall in December: 1.54"
The month with the highest snowfall is March (3.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Barneston, PA
- Average snowfall days in December: 2 days
The month with the highest number of snowfall days is February (4.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Barneston, 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: 4h and 5min
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 36min).
Average sunshine days in December
Barneston, PA
- Average sunshine days in December: 20.5 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in December
Barneston, 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, March, November and December (UV index 2).
Average cloud cover in December
Barneston, PA
- Average cloud cover in December: 48
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Barneston, PA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Barneston, Pennsylvania, USA
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