December weather forecastRosewood Park, PA
December
Weather in December
The first month of the winter, December, is also a frosty month in Rosewood Park, Pennsylvania, with an average temperature ranging between min 31.1°F (-0.5°C) and max 42.8°F (6°C).Temperature
Stepping into December, Rosewood Park observes a temperature decline, with the average high falling from November's fresh 51.8°F (11°C) to a frosty 42.8°F (6°C). An average temperature of 31.1°F (-0.5°C) is recorded during the nights in December.Humidity
The months with the highest humidity are February, October and December, with an average relative humidity of 78%.Rainfall
The month with the most rainfall is December, when the rain falls for 5.8 days and typically aggregates up to 0.75" (19mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In December, it is snowing for 1.7 days. Throughout December, 0.28" (7mm) of snow is accumulated. In Rosewood Park, during the entire year, snow falls for 12.6 days and aggregates up to 1.73" (44mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Rosewood Park, Pennsylvania.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, sunrise is at 7:22 am and sunset at 4:44 pm EST.
Sunshine
In Rosewood Park, the average sunshine in December is 5h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. 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
Rosewood Park, PA
- Average high temperature in December: 42.8°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in December: 31.1°F
The month with the highest average low temperature is July (67.5°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in December
Rosewood 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 (29.94"Hg).
Average wind speed in December
Rosewood Park, PA
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Rosewood Park, 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
Rosewood Park, PA
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is December (0.75").
The driest month (with the least rainfall) is September (0.2").
Average rainfall days in December
Rosewood Park, PA
- Average rainfall days in December: 5.8 days
The month with the highest number of rainy days is July (10.3 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in December
Rosewood Park, PA
- Average snowfall in December: 0.28"
The month with the highest snowfall is February (0.43").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Rosewood Park, PA
- Average snowfall days in December: 1.7 days
The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rosewood Park, 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: 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
Rosewood Park, PA
- Average sunshine days in December: 23.2 days
The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is July (17.4 days).
Average UV index in December
Rosewood 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
Rosewood 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 31).
Average visibility in December
Rosewood 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).
