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 commencement of December includes a gentle temperature shift, with the average high-temperature dropping a bit from a fresh 50.4°F (10.2°C) in November to an icy 41.5°F (5.3°C). An average nighttime temperature of 30°F (-1.1°C) is recorded in Perkiomen Place during December.Humidity
In Perkiomen Place, the average relative humidity in December is 80%.Rainfall
In Perkiomen Place, Pennsylvania, during December, the rain falls for 10.8 days and regularly aggregates up to 2.52" (64mm) of precipitation. In Perkiomen Place, during the entire year, the rain falls for 155.5 days and collects up to 28.15" (715mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Perkiomen Place, in December, during 4.1 snowfall days, 2.01" (51mm) of snow is typically accumulated. Throughout the year, there are 27 snowfall days, and 12.52" (318mm) of snow is accumulated.Daylight
The month with the shortest days in Perkiomen Place is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:06 am and sunset at 4:36 pm. On the last day of December, sunrise is at 7:24 am and sunset at 4:45 pm EST.
Sunshine
In Perkiomen Place, the average sunshine in December is 4.8h.UV index
The months with the lowest UV index in Perkiomen Place are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 2 in December translates into these instructions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
Is it cold in Perkiomen Place during December?
What is the average humidity in December in Perkiomen Place?
How much does it rain in Perkiomen Place in December?
How much does it snow in Perkiomen Place in December?
What is the month with the shortest days in Perkiomen Place?
What is the average length of the day in December in Perkiomen Place?
When are sunrise and sunset in December in Perkiomen Place?
How long on average sun shines in December in Perkiomen Place?
What is the month with the lowest UV index in Perkiomen Place?
How high is the UV index in December in Perkiomen Place?
Average temperature in December
Perkiomen Place, PA
- Average high temperature in December: 41.5°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in December: 30°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in December
Perkiomen Place, 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
Perkiomen Place, PA
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
Perkiomen Place, PA
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall in December
Perkiomen Place, PA
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is July (2.83").
The driest month (with the least rainfall) is September (1.65").
Average rainfall days in December
Perkiomen Place, PA
- Average rainfall days in December: 10.8 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (8 days).
Average snowfall in December
Perkiomen Place, PA
- Average snowfall in December: 2.01"
The month with the highest snowfall is March (3.86").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Perkiomen Place, PA
- Average snowfall days in December: 4.1 days
The month with the highest number of snowfall days is January (8.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Perkiomen Place, 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 18min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Perkiomen Place, PA
- Average sunshine days in December: 16 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is April (12 days).
Average UV index in December
Perkiomen Place, PA
- Average UV index in December: 2
The months with the highest UV index are May, June and July (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
Perkiomen Place, PA
- Average cloud cover in December: 50
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Perkiomen Place, PA
- Average visibility in December: 5mi
The months with the highest visibility are March, April, June, July, August and November (6mi).
The months with the lowest visibility are January, February, May, September, October and December (5mi).
Perkiomen Place, Pennsylvania, USA
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