December weather forecastBlandon, PA
December
Weather in December
The first month of the winter, December, is also an icy month in Blandon, Pennsylvania, with an average temperature varying between 40.6°F (4.8°C) and 29.7°F (-1.3°C).Temperature
The decrease of average high-temperatures is mild in December, with a decline from a cool 50.2°F (10.1°C) in November to a cold 40.6°F (4.8°C). In the month of December, the temperature generally rests at an average low of 29.7°F (-1.3°C).Humidity
In December, the average relative humidity is 80%.Rainfall
In Blandon, during December, the rain falls for 10.4 days and regularly aggregates up to 2.44" (62mm) of precipitation. In Blandon, during the entire year, the rain falls for 155.7 days and collects up to 30.83" (783mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Blandon, in December, during 3.7 snowfall days, 1.5" (38mm) of snow is typically accumulated. In Blandon, during the entire year, snow falls for 21.1 days and aggregates up to 12.28" (312mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:08 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:47 pm EST.
Sunshine
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 estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Blandon, PA
- Average high temperature in December: 40.6°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in December: 29.7°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (22.3°F).
Average pressure in December
Blandon, 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
Blandon, PA
- Average wind speed in December: 7.9mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Blandon, PA
- Average humidity in December: 80%
The months with the highest relative humidity are February and October (81%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Blandon, PA
- Average rainfall in December: 2.44"
The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is February (2.05").
Average rainfall days in December
Blandon, PA
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is January (7.9 days).
Average snowfall in December
Blandon, PA
- Average snowfall in December: 1.5"
The month with the highest snowfall is March (3.58").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Blandon, PA
- Average snowfall days in December: 3.7 days
The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Blandon, PA
- Average daylight in December: 9h and 18min
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 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 36min).
Average sunshine days in December
Blandon, PA
- Average sunshine days in December: 17.9 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in December
Blandon, 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
Blandon, 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 32).
Average visibility in December
Blandon, PA
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, June, July, November and December (6mi).
The months with the lowest visibility are February, May, August, September and October (5mi).
