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 December's onset, the average high-temperature recedes from November's chilly 46.2°F (7.9°C) to a wintry 36.5°F (2.5°C). Nighttime temperatures consistently average a subzero cold 26.4°F (-3.1°C) during December.Humidity
In Mentcle, the average relative humidity in December is 85%.Rainfall
In Mentcle, in December, it is raining for 7.2 days, with typically 0.94" (24mm) of accumulated precipitation. In Mentcle, during the entire year, the rain falls for 121.6 days and collects up to 10.75" (273mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Mentcle. In Mentcle, in December, during 9.2 snowfall days, 2.01" (51mm) of snow is typically accumulated. In Mentcle, during the entire year, snow falls for 49.1 days and aggregates up to 10.43" (265mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:20 am and sunset at 4:49 pm. On the last day of December, sunrise is at 7:39 am and sunset at 4:58 pm EST.
Sunshine
The average sunshine in December is 3.3h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The UV index of 1 in December translates into these instructions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Mentcle have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Mentcle, PA
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (30.4°F).
- Average low temperature in December: 26.4°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in December
Mentcle, PA
- Average pressure in December: 30.1"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
Mentcle, PA
- Average wind speed in December: 9.2mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Mentcle, PA
- Average humidity in December: 85%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, June, July and August (78%).
Average rainfall in December
Mentcle, PA
- Average rainfall in December: 0.94"
The wettest month (with the highest rainfall) is May (1.26").
The driest month (with the least rainfall) is September (0.55").
Average rainfall days in December
Mentcle, PA
- Average rainfall days in December: 7.2 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in December
Mentcle, PA
- Average snowfall in December: 2.01"
The month with the highest snowfall is January (2.64").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Mentcle, PA
- Average snowfall days in December: 9.2 days
The month with the highest number of snowfall days is January (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mentcle, 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 2min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
Mentcle, PA
- Average sunshine days in December: 17.6 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in December
Mentcle, PA
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Mentcle, PA
- Average cloud cover in December: 68
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 38).
Average visibility in December
Mentcle, 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).
Mentcle, Pennsylvania, USA
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