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
As Effort, Pennsylvania, enters December, the average high-temperature decreases from the a frosty 46.6°F (8.1°C) of November to an icy 37°F (2.8°C). December's average low-temperature reading settles at a subzero cold 26.2°F (-3.2°C).Humidity
The average relative humidity in December is 83%.Rainfall
In Effort, in December, it is raining for 8.3 days, with typically 2.05" (52mm) of accumulated precipitation. Throughout the year, there are 143 rainfall days, and 25.91" (658mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Effort, during December, snow falls for 5.1 days and regularly aggregates up to 2.72" (69mm) of snow. In Effort, Pennsylvania, during the entire year, snow falls for 31.9 days and aggregates up to 16.1" (409mm) of snow.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 7:07 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:43 pm EST.
Sunshine
In December, the average sunshine is 4.1h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: A typical high UV index of 1 in December suggests the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
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 many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Effort have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Effort have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Effort, PA
- Average high temperature in December: 37°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in December: 26.2°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in December
Effort, 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
Effort, PA
- Average wind speed in December: 7.8mph
The windiest months (with the highest average wind speed) are January, February and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Effort, PA
- Average humidity in December: 83%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are April and July (77%).
Average rainfall in December
Effort, PA
- Average rainfall in December: 2.05"
The wettest month (with the highest rainfall) is July (2.83").
The driest month (with the least rainfall) is September (1.46").
Average rainfall days in December
Effort, PA
- Average rainfall days in December: 8.3 days
The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in December
Effort, PA
- Average snowfall in December: 2.72"
The month with the highest snowfall is January (4.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Effort, PA
- Average snowfall days in December: 5.1 days
The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Effort, 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: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in December
Effort, PA
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.9 days).
Average UV index in December
Effort, 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
Effort, PA
- Average cloud cover in December: 57
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in December
Effort, PA
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Effort, Pennsylvania, USA
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