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
During Winchester Park's transition into December, the average high-temperature lessens, moving from a cool 52.7°F (11.5°C) in November to a chilly 43.7°F (6.5°C). The average temperature in Winchester Park during December nights dips to a cold 32.5°F (0.3°C).Humidity
In December, the average relative humidity in Winchester Park is 76%.Rainfall
In December, the rain falls for 9.8 days. Throughout December, 3.03" (77mm) of precipitation is accumulated. Throughout the year, there are 153.8 rainfall days, and 30.94" (786mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. In Winchester Park, in December, snow falls for 2.7 days, with typically accumulated 1.18" (30mm) of snow. In Winchester Park, Pennsylvania, during the entire year, snow falls for 16.8 days and aggregates up to 8.5" (216mm) of snow.Daylight
The month with the shortest days in Winchester Park, Pennsylvania, is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:03 am and sunset at 4:35 pm. On the last day of December, sunrise is at 7:21 am and sunset at 4:44 pm EST.
Sunshine
In December, the average sunshine 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. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Boost your sun resistance with garments that are densely woven yet spacious. Consider carefully! The reflective quality of snow can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is December in Winchester Park?
What is the average humidity in December in Winchester Park?
How much does it rain in Winchester Park in December?
How many days does it snow in December in Winchester Park?
What is the month with the shortest days in Winchester Park?
How many hours of daylight does Winchester Park have in December?
What time are sunrise and sunset in December in Winchester Park?
How many hours of sunshine does Winchester Park have in December?
When is the lowest UV index in Winchester Park?
How high is the UV index in December in Winchester Park?
Average temperature in December
Winchester Park, PA
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (37.4°F).
- Average low temperature in December: 32.5°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in December
Winchester Park, 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 (29.93"Hg).
Average wind speed in December
Winchester Park, PA
- Average wind speed in December: 7.7mph
The windiest months (with the highest average wind speed) are March and April (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in December
Winchester Park, PA
- Average humidity in December: 76%
The months with the highest relative humidity are February and October (77%).
The months with the lowest relative humidity are April, July and August (71%).
Average rainfall in December
Winchester Park, PA
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is July (3.39").
The driest month (with the least rainfall) is January (1.89").
Average rainfall days in December
Winchester Park, PA
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is July (18.5 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in December
Winchester Park, PA
- Average snowfall in December: 1.18"
The month with the highest snowfall is March (2.76").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Winchester Park, PA
- Average snowfall days in December: 2.7 days
The month with the highest number of snowfall days is January (5.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Winchester Park, 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 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Winchester Park, PA
- Average sunshine days in December: 19 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (10.4 days).
Average UV index in December
Winchester Park, 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
Winchester Park, 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 33).
Average visibility in December
Winchester Park, 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).
Winchester Park, Pennsylvania, USA
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