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 arrival of December corresponds with a shift in temperature, down from a frosty 47.5°F (8.6°C) in November to an icy 38.1°F (3.4°C). An average low-temperature of 27.3°F (-2.6°C) marks the month of December in Grier City, Pennsylvania.Humidity
The months with the highest humidity in Grier City are February and December, with an average relative humidity of 83%.Rainfall
In Grier City, in December, during 4.5 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. In Grier City, during the entire year, the rain falls for 66.7 days and collects up to 6.38" (162mm) of precipitation.Snowfall
Months with snowfall in Grier City are January through March, October through December. In Grier City, in December, during 3.8 snowfall days, 0.43" (11mm) of snow is typically accumulated. Throughout the year, there are 21.5 snowfall days, and 3.15" (80mm) of snow is accumulated.Daylight
The month with the shortest days in Grier City is December, with an average of 9h and 18min of daylight.On the first day of December in Grier City, sunrise is at 7:09 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:46 pm EST.
Sunshine
In Grier City, the average sunshine in December is 4.3h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 2 during December translates into these guidelines:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
How cold is December in Grier City?
What are the most humid months in Grier City?
What is the average humidity in December in Grier City?
How many days does it rain in December in Grier City?
How much does it snow in Grier City in December?
What is the month with the shortest days in Grier City?
What is the average length of the day in December in Grier City?
When are sunrise and sunset in December in Grier City?
How many hours of sunshine does Grier City have in December?
When is the lowest UV index in Grier City?
How high is the UV index in December in Grier City?
Average temperature in December
Grier City, PA
- Average high temperature in December: 38.1°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
Grier 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
Grier City, PA
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Grier City, PA
- Average humidity in December: 83%
The months with the highest relative humidity are February and December (83%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Grier City, PA
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is May (0.71").
The driest month (with the least rainfall) is September (0.2").
Average rainfall days in December
Grier City, PA
- Average rainfall days in December: 4.5 days
The month with the highest number of rainy days is April (8.1 days).
The month with the least rainy days is November (3.5 days).
Average snowfall in December
Grier City, PA
- Average snowfall in December: 0.43"
The months with the highest snowfall are January and November (0.71").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in December
Grier City, PA
- Average snowfall days in December: 3.8 days
The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grier 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: 4h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in December
Grier City, PA
- Average sunshine days in December: 24.9 days
The month with the most sunshine days is December (24.9 days).
The month with the least sunshine days is May (19.9 days).
Average UV index in December
Grier City, PA
- Average UV index in December: 2
The month with the highest UV index is July (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
Grier City, PA
- Average cloud cover in December: 54
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
Grier City, PA
- Average visibility in December: 5mi
The months with the highest visibility are March and April (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September, October, November and December (5mi).
Grier City, Pennsylvania, USA
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