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 moderate decline in average high-temperatures is noted in December, moving from a fresh 52.7°F (11.5°C) in November to a frosty 44.1°F (6.7°C). Throughout December, the average low-temperature in Glenolden dips to a wintry 32.7°F (0.4°C).Humidity
February, October and December, with an average relative humidity of 77%, are the most humid months.Rainfall
In Glenolden, during December, the rain falls for 9.6 days and regularly aggregates up to 2.4" (61mm) of precipitation. In Glenolden, during the entire year, the rain falls for 142 days and collects up to 24.41" (620mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Glenolden. In December, in Glenolden, it is snowing for 1.5 days. Throughout December, 0.75" (19mm) of snow is accumulated. In Glenolden, during the entire year, snow falls for 11.3 days and aggregates up to 6.18" (157mm) 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 the month, sunrise is at 7:04 am and sunset at 4:36 pm. On the last day of December, in Glenolden, sunrise is at 7:22 am and sunset at 4:46 pm EST.
Sunshine
In Glenolden, the average sunshine in December is 5.1h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Glenolden. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: The daily high UV index of 2 in December translates into this advice:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Frequently asked questions
Is December cold in Glenolden?
What are the most humid months in Glenolden?
What is the average humidity in December in Glenolden?
How much does it rain in Glenolden in December?
How many days does it snow in December in Glenolden?
What is the month with the shortest days in Glenolden?
How many hours of daylight does Glenolden have in December?
What time are sunrise and sunset in December in Glenolden?
How many hours of sunshine does Glenolden have in December?
What is the month with the lowest UV index in Glenolden?
What is the UV index intensity in December in Glenolden?
Average temperature in December
Glenolden, PA
- Average high temperature in December: 44.1°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in December: 32.7°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in December
Glenolden, 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
Glenolden, PA
- Average wind speed in December: 7.8mph
The windiest months (with the highest average wind speed) are February, March and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Glenolden, PA
- Average humidity in December: 77%
The months with the highest relative humidity are February, October and December (77%).
The month with the lowest relative humidity is April (71%).
Average rainfall in December
Glenolden, PA
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is August (2.95").
The driest month (with the least rainfall) is January (1.46").
Average rainfall days in December
Glenolden, PA
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in December
Glenolden, PA
- Average snowfall in December: 0.75"
The month with the highest snowfall is March (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Glenolden, PA
- Average snowfall days in December: 1.5 days
The month with the highest number of snowfall days is January (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Glenolden, 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 1min
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 54min).
Average sunshine days in December
Glenolden, PA
- Average sunshine days in December: 19.7 days
The month with the most sunshine days is January (20.8 days).
The month with the least sunshine days is July (12.1 days).
Average UV index in December
Glenolden, 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, November and December (UV index 2).
Average cloud cover in December
Glenolden, PA
- Average cloud cover in December: 46
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Glenolden, PA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Glenolden, Pennsylvania, USA
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