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
With the beginning of December, the average high-temperature shows a decrease, transitioning from a chilly 48.7°F (9.3°C) in November to an icy 39°F (3.9°C). Imperial encounters an average low-temperature of 28°F (-2.2°C) during December nights.Humidity
In December, the average relative humidity in Imperial, Pennsylvania, is 84%.Rainfall
In December, in Imperial, the rain falls for 10.1 days. Throughout December, 1.57" (40mm) of precipitation is accumulated. Throughout the year, there are 154.8 rainfall days, and 21.22" (539mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Imperial, Pennsylvania, in December, during 10.5 snowfall days, 1.69" (43mm) of snow is typically accumulated. In Imperial, during the entire year, snow falls for 49.9 days and aggregates up to 10.12" (257mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December in Imperial, sunrise is at 7:25 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:04 pm EST.
Sunshine
In December, the average sunshine is 3.2h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the UV index of 1 transforms into the following advice:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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 many days does it rain in December in Imperial?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Imperial have in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Imperial, PA
- Average high temperature in December: 39°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (32.9°F).
- Average low temperature in December: 28°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in December
Imperial, PA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Imperial, PA
- Average wind speed in December: 7.4mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Imperial, PA
- Average humidity in December: 84%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (75%).
Average rainfall in December
Imperial, PA
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is July (2.36").
The driest month (with the least rainfall) is January (1.22").
Average rainfall days in December
Imperial, PA
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in December
Imperial, PA
- Average snowfall in December: 1.69"
The month with the highest snowfall is February (2.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Imperial, PA
- Average snowfall days in December: 10.5 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Imperial, 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 18min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
Imperial, PA
- Average sunshine days in December: 12.9 days
The month with the most sunshine days is November (16.6 days).
The month with the least sunshine days is February (10.7 days).
Average UV index in December
Imperial, 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
Imperial, PA
- Average cloud cover in December: 66
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Imperial, PA
- Average visibility in December: 5mi
The months with the highest visibility are April, June, August and November (6mi).
The months with the lowest visibility are January, February, March, May, July, September, October and December (5mi).
Imperial, Pennsylvania, USA
Weather forecast for your location
2. Allow the app to use your location