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 onset of December entails a temperature shift, as the average high-temperature decreases from a cool 51.8°F (11°C) in November to a chilly 42.8°F (6°C). Maple Glen sees an average low-temperature of 31.1°F (-0.5°C) during December.Humidity
The months with the highest humidity are February, October and December, with an average relative humidity of 78%.Rainfall
December is the month with the most rainfall. Rain falls for 5.8 days and accumulates 0.75" (19mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. In December, it is snowing for 1.7 days. Throughout December, 0.28" (7mm) of snow is accumulated. In Maple Glen, during the entire year, snow falls for 12.6 days and aggregates up to 1.73" (44mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:04 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 4:45 pm EST.
Sunshine
The average sunshine in December is 5h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In December, the UV index of 2 transforms into the following advice:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What are the most humid months?
What is the average humidity in December?
What is the rainiest month?
How much 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 many hours of sunshine does Maple Glen have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Maple Glen, PA
- Average high temperature in December: 42.8°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in December: 31.1°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in December
Maple Glen, 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
Maple Glen, PA
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Maple Glen, PA
- Average humidity in December: 78%
The months with the highest relative humidity are February, October and December (78%).
The months with the lowest relative humidity are April, July and August (72%).
Average rainfall in December
Maple Glen, PA
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is December (0.75").
The driest month (with the least rainfall) is September (0.2").
Average rainfall days in December
Maple Glen, PA
- Average rainfall days in December: 5.8 days
The month with the highest number of rainy days is July (10.3 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in December
Maple Glen, PA
- Average snowfall in December: 0.28"
The month with the highest snowfall is February (0.43").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Maple Glen, PA
- Average snowfall days in December: 1.7 days
The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Maple Glen, PA
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Maple Glen, PA
- Average sunshine days in December: 23.2 days
The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is July (17.4 days).
Average UV index in December
Maple Glen, PA
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (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
Maple Glen, PA
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Maple Glen, PA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Maple Glen, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location