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
December's arrival corresponds with a decrease in average high-temperatures, from November's chilly 49.3°F (9.6°C) to a wintry 40.1°F (4.5°C). The nighttime temperature in Thompsonville dips to a freezing cold 28.6°F (-1.9°C) on average during December.Humidity
In Thompsonville, the average relative humidity in December is 83%.Rainfall
In Thompsonville, in December, during 13.4 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. Throughout the year, there are 187.9 rainfall days, and 35.59" (904mm) of precipitation is accumulated.Snowfall
Months with snowfall in Thompsonville are January through May, October through December. In Thompsonville, during December, snow falls for 13 days and regularly aggregates up to 4.53" (115mm) of snow. Throughout the year, in Thompsonville, Pennsylvania, there are 60 snowfall days, and 23.31" (592mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year in Thompsonville.On the first day of the month, sunrise is at 7:24 am and sunset at 4:54 pm. On the last day of December, sunrise is at 7:43 am and sunset at 5:04 pm EST.
Sunshine
In Thompsonville, the average sunshine in December is 3.4h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index in Thompsonville. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for average individuals.Note: A typical high UV index of 1 in December suggests the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Frequently asked questions
How cold is December in Thompsonville?
What is the average humidity in December in Thompsonville?
How much does it rain in Thompsonville in December?
How many days does it snow in December in Thompsonville?
What is the month with the shortest days in Thompsonville?
What is the average length of the day in December in Thompsonville?
When are sunrise and sunset in December in Thompsonville?
How long on average sun shines in December in Thompsonville?
What is the month with the lowest UV index in Thompsonville?
What is the UV index reading in December in Thompsonville?
Average temperature in December
Thompsonville, PA
- Average high temperature in December: 40.1°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 (33.4°F).
- Average low temperature in December: 28.6°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in December
Thompsonville, PA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Thompsonville, PA
- Average wind speed in December: 7.2mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in December
Thompsonville, PA
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are July and August (75%).
Average rainfall in December
Thompsonville, PA
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is November (2.2").
Average rainfall days in December
Thompsonville, PA
- Average rainfall days in December: 13.4 days
The month with the highest number of rainy days is May (21.5 days).
The month with the least rainy days is February (11.3 days).
Average snowfall in December
Thompsonville, PA
- Average snowfall in December: 4.53"
The month with the highest snowfall is January (5.83").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Thompsonville, PA
- Average snowfall days in December: 13 days
The month with the highest number of snowfall days is January (17.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Thompsonville, 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: 3h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
Thompsonville, PA
- Average sunshine days in December: 9.9 days
The month with the most sunshine days is November (15.1 days).
The month with the least sunshine days is January (7.7 days).
Average UV index in December
Thompsonville, PA
- Average UV index in December: 1
The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Thompsonville, PA
- Average cloud cover in December: 64
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Thompsonville, PA
- Average visibility in December: 5mi
The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January and February (4mi).
Thompsonville, Pennsylvania, USA
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