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
With December's onset, the average high-temperature recedes from November's cool 51.3°F (10.7°C) to a wintry 42.1°F (5.6°C). Throughout December in Trewigtown, Pennsylvania, a steady low-temperature average of 30.7°F (-0.7°C) is noted.Humidity
The months with the highest humidity are February, October and December, with an average relative humidity of 79%.Rainfall
In December, the rain falls for 7.3 days. Throughout December, 1.02" (26mm) of precipitation is accumulated. Throughout the year, in Trewigtown, there are 116.6 rainfall days, and 10.63" (270mm) of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall in Trewigtown. In Trewigtown, Pennsylvania, in December, snow falls for 1.8 days, with typically accumulated 0.43" (11mm) of snow. Throughout the year, in Trewigtown, Pennsylvania, there are 14.8 snowfall days, and 3.5" (89mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Trewigtown.On the first day of the month, sunrise is at 7:05 am and sunset at 4:35 pm. On the last day of December, in Trewigtown, Pennsylvania, sunrise is at 7:23 am and sunset at 4:45 pm EST.
Sunshine
In Trewigtown, Pennsylvania, 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 health risk from exposure to the Sun's UV rays for average individuals.Note: A maximum high daily UV index of 2 during December translates into the following directions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Frequently asked questions
Is December cold in Trewigtown?
What are the most humid months in Trewigtown?
What is the average humidity in December in Trewigtown?
How much does it rain in Trewigtown in December?
How much does it snow in Trewigtown in December?
What is the month with the shortest days in Trewigtown?
What is the average length of the day in December in Trewigtown?
When are sunrise and sunset in December in Trewigtown?
How long on average sun shines in December in Trewigtown?
When is the lowest UV index in Trewigtown?
What is the UV index intensity in December in Trewigtown?
Average temperature in December
Trewigtown, PA
- Average high temperature in December: 42.1°F
The warmest month (with the highest average high temperature) is July (85.3°F).
The month with the lowest average high temperature is January (35.6°F).
- Average low temperature in December: 30.7°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in December
Trewigtown, 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
Trewigtown, PA
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in December
Trewigtown, PA
- Average humidity in December: 79%
The months with the highest relative humidity are February, October and December (79%).
The months with the lowest relative humidity are April, July and August (73%).
Average rainfall in December
Trewigtown, PA
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is July (1.3").
The driest month (with the least rainfall) is September (0.59").
Average rainfall days in December
Trewigtown, PA
- Average rainfall days in December: 7.3 days
The month with the highest number of rainy days is July (13.8 days).
The months with the least rainy days are January and February (6.3 days).
Average snowfall in December
Trewigtown, PA
- Average snowfall in December: 0.43"
The month with the highest snowfall is March (1.02").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Trewigtown, PA
- Average snowfall days in December: 1.8 days
The month with the highest number of snowfall days is January (4.6 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
Trewigtown, 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 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Trewigtown, PA
- Average sunshine days in December: 21.7 days
The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is July (13.9 days).
Average UV index in December
Trewigtown, 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
Trewigtown, 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
Trewigtown, 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).
Trewigtown, Pennsylvania, USA
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