December weather forecastTweedale, PA
December
Weather in December
The first month of the winter, December, is still a chilly month in Tweedale, Pennsylvania, with an average temperature fluctuating between 43.2°F (6.2°C) and 31.3°F (-0.4°C).Temperature
Tweedale's progression into December involves a gentle drop in the average high-temperature, from a fresh 51.6°F (10.9°C) in November to a chilly 43.2°F (6.2°C). In Tweedale, December nights cool down to an average of 31.3°F (-0.4°C).Humidity
In Tweedale, the average relative humidity in December is 79%.Rainfall
In Tweedale, in December, during 8.6 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. In Tweedale, Pennsylvania, during the entire year, the rain falls for 130.4 days and collects up to 16.3" (414mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Tweedale. In Tweedale, in December, snow falls for 2.5 days, with typically accumulated 0.59" (15mm) of snow. In Tweedale, Pennsylvania, during the entire year, snow falls for 16.2 days and aggregates up to 5.35" (136mm) 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 the month, sunrise is at 7:06 am and sunset at 4:40 pm. On the last day of December, in Tweedale, sunrise is at 7:25 am and sunset at 4:49 pm EST.
Sunshine
The average sunshine in December is 5h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 2 during December translates into the following recommendations:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Tweedale, PA
- Average high temperature in December: 43.2°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (36.7°F).
- Average low temperature in December: 31.3°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (24.6°F).
Average pressure in December
Tweedale, 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
Tweedale, PA
- Average wind speed in December: 8.3mph
The windiest months (with the highest average wind speed) are January, February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Tweedale, PA
- Average humidity in December: 79%
The month with the highest relative humidity is May (81%).
The months with the lowest relative humidity are January, March, April and November (76%).
Average rainfall in December
Tweedale, PA
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is August (2.36").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in December
Tweedale, PA
- Average rainfall days in December: 8.6 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 days).
Average snowfall in December
Tweedale, PA
- Average snowfall in December: 0.59"
The month with the highest snowfall is March (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Tweedale, PA
- Average snowfall days in December: 2.5 days
The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Tweedale, PA
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Tweedale, PA
- Average sunshine days in December: 19.6 days
The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is June (13.2 days).
Average UV index in December
Tweedale, 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, November and December (UV index 2).
Average cloud cover in December
Tweedale, PA
- Average cloud cover in December: 46
The months with the most cloud cover are February, March and May (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Tweedale, PA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, October, November and December (6mi).
The months with the lowest visibility are May, August and September (5mi).





