December weather forecastWindsor Manor, PA
December
Weather in December
The first month of the winter, December, is also an icy month in Windsor Manor, Pennsylvania, with an average temperature ranging between max 40.8°F (4.9°C) and min 29.3°F (-1.5°C).Temperature
During Windsor Manor's transition into December, the average high-temperature lessens, moving from a frosty 49.8°F (9.9°C) in November to a wintry 40.8°F (4.9°C). Windsor Manor records an average nighttime low-temperature of 29.3°F (-1.5°C) throughout December.Humidity
In December, the average relative humidity is 79%.Rainfall
In December, the rain falls for 8.4 days. Throughout December, 1.02" (26mm) of precipitation is accumulated. Throughout the year, there are 128.8 rainfall days, and 15" (381mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Windsor Manor. In Windsor Manor, during December, snow falls for 3.4 days and regularly aggregates up to 1.02" (26mm) of snow. In Windsor Manor, during the entire year, snow falls for 19.2 days and aggregates up to 7.52" (191mm) 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 7:11 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:51 pm EST.
Sunshine
In Windsor Manor, the average sunshine in December is 4.7h.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 value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: An average maximum UV index of 2 in December leads to these recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Windsor Manor, PA
- Average high temperature in December: 40.8°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).
Average pressure in December
Windsor Manor, PA
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Windsor Manor, PA
- Average wind speed in December: 7.6mph
The windiest months (with the highest average wind speed) are March and April (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Windsor Manor, PA
- Average humidity in December: 79%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are March and April (76%).
Average rainfall in December
Windsor Manor, PA
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is August (1.73").
The driest month (with the least rainfall) is September (0.91").
Average rainfall days in December
Windsor Manor, PA
- Average rainfall days in December: 8.4 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in December
Windsor Manor, PA
- Average snowfall in December: 1.02"
The months with the highest snowfall are January and March (2.17").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Windsor Manor, PA
- Average snowfall days in December: 3.4 days
The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Windsor Manor, PA
- Average daylight in December: 9h and 24min
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: 4h and 42min
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
Windsor Manor, PA
- Average sunshine days in December: 19.1 days
The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in December
Windsor Manor, 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
Windsor Manor, PA
- Average cloud cover in December: 51
The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Windsor Manor, 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).
