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
The beginning of December involves a decrease in the average high-temperature, transitioning from a chilly 49.3°F (9.6°C) in November to an icy 39.7°F (4.3°C). An average low-temperature of 27.9°F (-2.3°C) marks the nights in South Connellsville throughout December.Humidity
In South Connellsville, Pennsylvania, the average relative humidity in December is 84%.Rainfall
In December, the rain falls for 9.4 days. Throughout December, 1.42" (36mm) of precipitation is accumulated. Throughout the year, in South Connellsville, there are 150.7 rainfall days, and 16.65" (423mm) of precipitation is accumulated.Snowfall
Months with snowfall in South Connellsville are January through May, October through December. In December, it is snowing for 11.5 days. Throughout December, 3.74" (95mm) of snow is accumulated. In South Connellsville, during the entire year, snow falls for 58.2 days and aggregates up to 17.44" (443mm) of snow.Daylight
December has the shortest days of the year in South Connellsville, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:21 am and sunset at 4:53 pm. On the last day of December, sunrise is at 7:40 am and sunset at 5:03 pm EST.
Sunshine
In December, the average sunshine is 3.5h.UV index
January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
How cold does it get in South Connellsville in December?
What is the average humidity in December in South Connellsville?
How much does it rain in South Connellsville in December?
How much does it snow in South Connellsville in December?
What is the month with the shortest days in South Connellsville?
How many hours of daylight does South Connellsville have in December?
When is the sunrise / sunset in December in South Connellsville?
How long on average sun shines in December in South Connellsville?
What is the month with the lowest UV index in South Connellsville?
What is the UV index reading in December in South Connellsville?
Average temperature in December
South Connellsville, PA
- Average high temperature in December: 39.7°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in December: 27.9°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in December
South Connellsville, 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
South Connellsville, PA
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is January (8.4mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
South Connellsville, PA
- Average humidity in December: 84%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are July and August (77%).
Average rainfall in December
South Connellsville, PA
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is May (1.97").
The driest months (with the least rainfall) are September and November (0.91").
Average rainfall days in December
South Connellsville, PA
- Average rainfall days in December: 9.4 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in December
South Connellsville, PA
- Average snowfall in December: 3.74"
The month with the highest snowfall is January (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
South Connellsville, PA
- Average snowfall days in December: 11.5 days
The month with the highest number of snowfall days is January (15.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
South Connellsville, 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 3min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
South Connellsville, PA
- Average sunshine days in December: 12.1 days
The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is January (8.6 days).
Average UV index in December
South Connellsville, PA
- Average UV index in December: 2
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
South Connellsville, PA
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in December
South Connellsville, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The month with the lowest visibility is January (4mi).
South Connellsville, Pennsylvania, USA
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