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 start of December comes with a reduction in the average high-temperature, receding from a chilly 43.9°F (6.6°C) in November to a cold 34.5°F (1.4°C). During the nights in December, an average low-temperature of 25.2°F (-3.8°C) is observed.Humidity
In December, the average relative humidity is 85%.Rainfall
In Gleason, in December, it is raining for 8.9 days, with typically 2.13" (54mm) of accumulated precipitation. In Gleason, during the entire year, the rain falls for 156.3 days and collects up to 29.25" (743mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 11.8 days. Throughout December, 5.71" (145mm) of snow is accumulated. Throughout the year, there are 63.2 snowfall days, and 33.23" (844mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of December, sunrise is at 7:15 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 4:47 pm EST.
Sunshine
The months with the least sunshine are January and December, with an average of 3.2h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 1 in December converts into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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 Gleason?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Gleason have in December?
When are sunrise and sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Gleason have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Gleason, PA
- Average high temperature in December: 34.5°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in December: 25.2°F
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (17.2°F).
Average pressure in December
Gleason, 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
Gleason, PA
- Average wind speed in December: 8.1mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in December
Gleason, PA
- Average humidity in December: 85%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is July (78%).
Average rainfall in December
Gleason, PA
- Average rainfall in December: 2.13"
The wettest month (with the highest rainfall) is July (3.19").
The driest month (with the least rainfall) is January (1.73").
Average rainfall days in December
Gleason, PA
- Average rainfall days in December: 8.9 days
The month with the highest number of rainy days is July (19.5 days).
The month with the least rainy days is February (6.5 days).
Average snowfall in December
Gleason, PA
- Average snowfall in December: 5.71"
The month with the highest snowfall is February (7.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Gleason, PA
- Average snowfall days in December: 11.8 days
The month with the highest number of snowfall days is January (14.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Gleason, 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: 3h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The months with the least sunshine are January and December (Average sunshine: 3h and 12min).
Average sunshine days in December
Gleason, PA
- Average sunshine days in December: 13.6 days
The month with the most sunshine days is November (17 days).
The month with the least sunshine days is July (9.8 days).
Average UV index in December
Gleason, PA
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Gleason, PA
- Average cloud cover in December: 68
The months with the most cloud cover are January and December (Cloud cover 68).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in December
Gleason, 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).
Gleason, Pennsylvania, USA
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