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 is accompanied by a temperature decrease, with the average high-temperature shifting from a chilly 46.9°F (8.3°C) in November to a wintry 37°F (2.8°C). During December, the temperature is averaged to a low of 27°F (-2.8°C) at night.Humidity
The average relative humidity in December is 82%.Rainfall
In Richarts Grove, in December, during 12.7 rainfall days, 1.93" (49mm) of precipitation is typically accumulated. Throughout the year, there are 168 rainfall days, and 27.32" (694mm) of precipitation is accumulated.Snowfall
Months with snowfall in Richarts Grove are January through May, October through December. In Richarts Grove, during December, snow falls for 10 days and regularly aggregates up to 2.95" (75mm) of snow. Throughout the year, there are 48.3 snowfall days, and 17.68" (449mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:12 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:47 pm EST.
Sunshine
In December, the average sunshine is 4.1h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 2 during December translates into the following recommendations:
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. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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 many days does it snow in December?
What is the month with the shortest days in Richarts Grove?
How many hours of daylight does Richarts Grove have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Richarts Grove have in December?
When is the lowest UV index?
What is the UV index intensity in December in Richarts Grove?
Average temperature in December
Richarts Grove, PA
- Average high temperature in December: 37°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (30.9°F).
- Average low temperature in December: 27°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in December
Richarts Grove, PA
- Average pressure in December: 30.09"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
Richarts Grove, PA
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Richarts Grove, PA
- Average humidity in December: 82%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Richarts Grove, PA
- Average rainfall in December: 1.93"
The wettest month (with the highest rainfall) is April (2.83").
The driest month (with the least rainfall) is November (1.77").
Average rainfall days in December
Richarts Grove, PA
- Average rainfall days in December: 12.7 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (9.7 days).
Average snowfall in December
Richarts Grove, PA
- Average snowfall in December: 2.95"
The month with the highest snowfall is February (5.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Richarts Grove, PA
- Average snowfall days in December: 10 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Richarts Grove, 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: 4h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 3h and 54min).
Average sunshine days in December
Richarts Grove, PA
- Average sunshine days in December: 13.4 days
The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is February (10 days).
Average UV index in December
Richarts Grove, PA
- Average UV index in December: 2
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Richarts Grove, PA
- Average cloud cover in December: 58
The months with the most cloud cover are January, February and December (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Richarts Grove, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Richarts Grove, Pennsylvania, USA
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