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 suggests a modest reduction in the average high-temperature, shifting from a chilly 46.6°F (8.1°C) in November to a wintry 37.2°F (2.9°C). The average nighttime temperature lowers to a freezing cold 26.6°F (-3°C) throughout December.Humidity
In December, the average relative humidity is 83%.Rainfall
In December, in Weatherly, the rain falls for 11.3 days. Throughout December, 2.4" (61mm) of precipitation is accumulated. In Weatherly, during the entire year, the rain falls for 154.6 days and collects up to 29.45" (748mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Weatherly. In Weatherly, in December, snow falls for 7.7 days, with typically accumulated 3.62" (92mm) of snow. In Weatherly, during the entire year, snow falls for 46.2 days and aggregates up to 24.92" (633mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of December in Weatherly, sunrise is at 7:09 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:45 pm EST.
Sunshine
In December, the average sunshine in Weatherly is 4.2h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the UV index of 1 transforms into the following advice:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
How cold is December in Weatherly?
What is the average humidity in December in Weatherly?
How much does it rain in Weatherly in December?
How much does it snow in Weatherly in December?
What is the month with the shortest days in Weatherly?
What is the average length of the day in December in Weatherly?
When is the sunrise / sunset in December in Weatherly?
How many hours of sunshine does Weatherly have in December?
When is the lowest UV index in Weatherly?
How high is the UV index in December in Weatherly?
Average temperature in December
Weatherly, PA
- Average high temperature in December: 37.2°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in December: 26.6°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in December
Weatherly, 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
Weatherly, PA
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in December
Weatherly, PA
- Average humidity in December: 83%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are April and July (78%).
Average rainfall in December
Weatherly, PA
- Average rainfall in December: 2.4"
The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in December
Weatherly, PA
- Average rainfall days in December: 11.3 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (7.4 days).
Average snowfall in December
Weatherly, PA
- Average snowfall in December: 3.62"
The month with the highest snowfall is January (6.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Weatherly, PA
- Average snowfall days in December: 7.7 days
The month with the highest number of snowfall days is February (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Weatherly, PA
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in December
Weatherly, PA
- Average sunshine days in December: 15 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is February (10.8 days).
Average UV index in December
Weatherly, PA
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Weatherly, PA
- Average cloud cover in December: 57
The month with the most cloud cover is February (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in December
Weatherly, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Weatherly, Pennsylvania, USA
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