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 marks a decrease in the average high-temperature, transitioning from a cool 50.2°F (10.1°C) in November to a wintry 40.6°F (4.8°C). In Waynesburg, December nights witness a steady temperature drop to a freezing cold 28.9°F (-1.7°C).Humidity
In Waynesburg, the average relative humidity in December is 83%.Rainfall
In December, the rain falls for 12.9 days. Throughout December, 2.52" (64mm) of precipitation is accumulated. In Waynesburg, during the entire year, the rain falls for 183 days and collects up to 30.91" (785mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Waynesburg. In December, in Waynesburg, Pennsylvania, it is snowing for 11.9 days. Throughout December, 3.98" (101mm) of snow is accumulated. In Waynesburg, Pennsylvania, during the entire year, snow falls for 56.4 days and aggregates up to 20.35" (517mm) of snow.Daylight
December has the shortest days of the year in Waynesburg, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:23 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 5:05 pm EST.
Sunshine
In December, the average sunshine is 3.7h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Waynesburg. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Around midday, solar radiation is most harmful; hence, exposure should be limited. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Frequently asked questions
Is December cold in Waynesburg?
What is the average humidity in December in Waynesburg?
How many days does it rain in December in Waynesburg?
How many days does it snow in December in Waynesburg?
What is the month with the shortest days in Waynesburg?
How many hours of daylight does Waynesburg have in December?
What time are sunrise and sunset in December in Waynesburg?
How long on average sun shines in December in Waynesburg?
When is the lowest UV index in Waynesburg?
How high is the UV index in December in Waynesburg?
Average temperature in December
Waynesburg, PA
- Average high temperature in December: 40.6°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in December: 28.9°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in December
Waynesburg, 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
Waynesburg, PA
- Average wind speed in December: 6.8mph
The windiest month (with the highest average wind speed) is January (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in December
Waynesburg, 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 April, July and August (77%).
Average rainfall in December
Waynesburg, PA
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is November (1.77").
Average rainfall days in December
Waynesburg, PA
- Average rainfall days in December: 12.9 days
The month with the highest number of rainy days is May (20.7 days).
The month with the least rainy days is February (10.6 days).
Average snowfall in December
Waynesburg, PA
- Average snowfall in December: 3.98"
The month with the highest snowfall is February (5.35").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Waynesburg, PA
- Average snowfall days in December: 11.9 days
The month with the highest number of snowfall days is January (16.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Waynesburg, 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 4min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Waynesburg, PA
- Average sunshine days in December: 10.6 days
The month with the most sunshine days is November (15.7 days).
The month with the least sunshine days is February (7.5 days).
Average UV index in December
Waynesburg, PA
- Average UV index in December: 2
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Waynesburg, PA
- Average cloud cover in December: 63
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Waynesburg, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
Waynesburg, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location
