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
December comes with a drop in the average high-temperature, falling from November's fresh 52.2°F (11.2°C) to a frosty 42.8°F (6°C). An average minimum temperature of 31.6°F (-0.2°C) is recorded during the month of December.Humidity
February, October and December, with an average relative humidity of 78%, are the most humid months in Wyndmoor.Rainfall
In Wyndmoor, in December, it is raining for 7.5 days, with typically 1.14" (29mm) of accumulated precipitation. In Wyndmoor, during the entire year, the rain falls for 122.4 days and collects up to 12.68" (322mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Wyndmoor. In Wyndmoor, in December, during 2.5 snowfall days, 0.71" (18mm) of snow is typically accumulated. In Wyndmoor, during the entire year, snow falls for 16.3 days and aggregates up to 4.72" (120mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Wyndmoor.On the first day of the month, sunrise is at 7:04 am and sunset at 4:35 pm. On the last day of December, in Wyndmoor, sunrise is at 7:22 am and sunset at 4:45 pm EST.
Sunshine
In Wyndmoor, the average sunshine in December is 5h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Wyndmoor. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 2 in December translates into these instructions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
How cold does it get in Wyndmoor in December?
What is the most humid month in Wyndmoor?
What is the average humidity in December in Wyndmoor?
How much does it rain in Wyndmoor in December?
How much does it snow in Wyndmoor in December?
What is the month with the shortest days in Wyndmoor?
How many hours of daylight does Wyndmoor have in December?
What time are sunrise and sunset in December in Wyndmoor?
How long on average sun shines in December in Wyndmoor?
When is the lowest UV index in Wyndmoor?
What is the UV index reading in December in Wyndmoor?
Average temperature in December
Wyndmoor, PA
- Average high temperature in December: 42.8°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in December: 31.6°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure in December
Wyndmoor, 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
Wyndmoor, PA
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in December
Wyndmoor, 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
Wyndmoor, PA
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is August (1.54").
The driest month (with the least rainfall) is September (0.75").
Average rainfall days in December
Wyndmoor, PA
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is November (6.4 days).
Average snowfall in December
Wyndmoor, PA
- Average snowfall in December: 0.71"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Wyndmoor, PA
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is January (5.1 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
Wyndmoor, 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
Wyndmoor, PA
- Average sunshine days in December: 20.9 days
The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is May (14.4 days).
Average UV index in December
Wyndmoor, 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
Wyndmoor, 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
Wyndmoor, 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).
Wyndmoor, Pennsylvania, USA
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