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
During the transition into December, Grove City observes a decrease in the average high-temperature, falling from a frosty 46.8°F (8.2°C) in November to a wintry 37.2°F (2.9°C). In the month of December, Grove City witnesses a consistent average low-temperature of 26.2°F (-3.2°C).Humidity
In Grove City, Pennsylvania, the average relative humidity in December is 87%.Rainfall
In December, the rain falls for 12.5 days. Throughout December, 2.8" (71mm) of precipitation is accumulated. Throughout the year, there are 180.3 rainfall days, and 35.39" (899mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Grove City, in December, during 16.6 snowfall days, 6.14" (156mm) of snow is typically accumulated. In Grove City, during the entire year, snow falls for 79.6 days and aggregates up to 33.62" (854mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:26 am and sunset at 4:52 pm. On the last day of December, sunrise is at 7:45 am and sunset at 5:01 pm EST.
Sunshine
In December, the average sunshine is 2.8h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.Note: During December, 1 as the daily maximum UV index converts into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. During bright days, sunglasses that offer UVA and UVB defense are recommended. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Grove City in December?
What is the average humidity in December?
How many days 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?
What time are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Grove City, PA
- Average high temperature in December: 37.2°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in December: 26.2°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).
Average pressure in December
Grove City, 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
Grove City, PA
- Average wind speed in December: 7.6mph
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
Grove City, PA
- Average humidity in December: 87%
The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are April, May, June, July and August (79%).
Average rainfall in December
Grove City, PA
- Average rainfall in December: 2.8"
The wettest month (with the highest rainfall) is April (3.66").
The driest month (with the least rainfall) is November (2.28").
Average rainfall days in December
Grove City, PA
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in December
Grove City, PA
- Average snowfall in December: 6.14"
The month with the highest snowfall is January (9.33").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Grove City, PA
- Average snowfall days in December: 16.6 days
The month with the highest number of snowfall days is January (20.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grove City, 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: 2h and 5min
The months with the most sunshine are July and August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in December
Grove City, PA
- Average sunshine days in December: 7.5 days
The month with the most sunshine days is November (12.8 days).
The month with the least sunshine days is February (5.8 days).
Average UV index in December
Grove City, 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
Grove City, PA
- 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 37).
Average visibility in December
Grove City, PA
- Average visibility in December: 4mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (5mi).
The months with the lowest visibility are January, February and December (4mi).
Grove City, Pennsylvania, USA
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