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 comes with a drop in the average high-temperature, falling from November's chilly 48°F (8.9°C) to an icy 38.5°F (3.6°C). Confluence records a mean low-temperature of 27.5°F (-2.5°C) in December.Humidity
In December, the average relative humidity is 85%.Rainfall
In December, in Confluence, the rain falls for 10.3 days. Throughout December, 2.17" (55mm) of precipitation is accumulated. Throughout the year, in Confluence, Pennsylvania, there are 162.5 rainfall days, and 24.76" (629mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Confluence. In December, it is snowing for 9 days. Throughout December, 4.96" (126mm) of snow is accumulated. In Confluence, during the entire year, snow falls for 57.1 days and aggregates up to 26.97" (685mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:20 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 5:02 pm EST.
Sunshine
The average sunshine in December in Confluence 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 reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 2 during December translates into the following recommendations:
Most individuals face no major issues with lengthy exposure to the sun, but children, infants, and individuals with fair skin always require protection. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in December?
What is the average humidity in December?
How much does it rain in Confluence in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Confluence have in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Confluence, PA
- Average high temperature in December: 38.5°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (32.7°F).
- Average low temperature in December: 27.5°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in December
Confluence, 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
Confluence, PA
- Average wind speed in December: 8mph
The windiest month (with the highest average wind speed) is January (8.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Confluence, PA
- Average humidity in December: 85%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are June, July and August (78%).
Average rainfall in December
Confluence, PA
- Average rainfall in December: 2.17"
The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is November (1.34").
Average rainfall days in December
Confluence, PA
- Average rainfall days in December: 10.3 days
The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in December
Confluence, PA
- Average snowfall in December: 4.96"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Confluence, PA
- Average snowfall days in December: 9 days
The month with the highest number of snowfall days is January (14.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Confluence, PA
- Average daylight in December: 9h and 2min
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: 3h and 3min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
Confluence, PA
- Average sunshine days in December: 14 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is May (8.3 days).
Average UV index in December
Confluence, PA
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Confluence, 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 38).
Average visibility in December
Confluence, PA
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Confluence, Pennsylvania, USA
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