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
A subtle decrease in the average high-temperature marks December, falling from November's chilly 45.7°F (7.6°C) to a wintry 36.1°F (2.3°C). During the month of December, the temperature generally drops to a low average of 25.7°F (-3.5°C).Humidity
The average relative humidity in December is 87%.Rainfall
In Polk, in December, it is raining for 12.3 days, with typically 2.99" (76mm) of accumulated precipitation. In Polk, during the entire year, the rain falls for 186 days and collects up to 38.03" (966mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Polk, in December, snow falls for 17.5 days, with typically accumulated 7.99" (203mm) of snow. In Polk, during the entire year, snow falls for 87.8 days and aggregates up to 42.95" (1091mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:26 am and sunset at 4:51 pm. On the last day of December, sunrise is at 7:45 am and sunset at 5:00 pm EST.
Sunshine
In Polk, the average sunshine in December is 2.6h.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 minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 1 in December converts into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
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 many days does it rain in December in Polk?
How many days 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 many hours of sunshine does Polk have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Polk, PA
- Average high temperature in December: 36.1°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in December: 25.7°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 (17.6°F).
Average pressure in December
Polk, 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
Polk, PA
- Average wind speed in December: 7.7mph
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
Polk, PA
- Average humidity in December: 87%
The months with the highest relative humidity are January and February (89%).
The months with the lowest relative humidity are May, June and July (79%).
Average rainfall in December
Polk, PA
- Average rainfall in December: 2.99"
The wettest month (with the highest rainfall) is April (4.09").
The driest month (with the least rainfall) is November (2.44").
Average rainfall days in December
Polk, PA
- Average rainfall days in December: 12.3 days
The month with the highest number of rainy days is May (20.7 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in December
Polk, PA
- Average snowfall in December: 7.99"
The month with the highest snowfall is January (11.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Polk, PA
- Average snowfall days in December: 17.5 days
The month with the highest number of snowfall days is January (21.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Polk, PA
- Average daylight in December: 9h and 1min
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 12min).
- Average sunshine in December: 2h and 4min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 18min).
Average sunshine days in December
Polk, PA
- Average sunshine days in December: 7.5 days
The month with the most sunshine days is November (11.3 days).
The month with the least sunshine days is February (5 days).
Average UV index in December
Polk, 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
Polk, PA
- Average cloud cover in December: 73
The month with the most cloud cover is January (Cloud cover 77).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility in December
Polk, PA
- Average visibility in December: 4mi
The months with the highest visibility are March, April, May, June, July, August, October and November (5mi).
The months with the lowest visibility are January, February, September and December (4mi).
Polk, Pennsylvania, USA
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