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
Transition from November to December is accompanied by a temperature drop, with average high-temperatures decreasing from a frosty 47.5°F (8.6°C) to a wintry 38.1°F (3.4°C). During December, the temperature is averaged to a low of 27.3°F (-2.6°C) at night.Humidity
The months with the highest humidity are February and December, with an average relative humidity of 83%.Rainfall
In East Mahanoy Junction, in December, it is raining for 4.5 days, with typically 0.55" (14mm) of accumulated precipitation. In East Mahanoy Junction, during the entire year, the rain falls for 66.7 days and collects up to 6.38" (162mm) of precipitation.Snowfall
Months with snowfall are January through March, October through December. In December, it is snowing for 3.8 days. Throughout December, 0.43" (11mm) of snow is accumulated. Throughout the year, there are 21.5 snowfall days, and 3.15" (80mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:09 am and sunset at 4:37 pm. On the last day of December, in East Mahanoy Junction, sunrise is at 7:28 am and sunset at 4:46 pm EST.
Sunshine
In East Mahanoy Junction, Pennsylvania, the average sunshine in December is 4.3h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What are the most humid months?
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 East Mahanoy Junction have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
East Mahanoy Junction, PA
- Average high temperature in December: 38.1°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.8°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in December
East Mahanoy Junction, 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
East Mahanoy Junction, PA
- Average wind speed in December: 7.8mph
The windiest month (with the highest average wind speed) is March (8.4mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in December
East Mahanoy Junction, PA
- Average humidity in December: 83%
The months with the highest relative humidity are February and December (83%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
East Mahanoy Junction, PA
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is May (0.71").
The driest month (with the least rainfall) is September (0.2").
Average rainfall days in December
East Mahanoy Junction, PA
- Average rainfall days in December: 4.5 days
The month with the highest number of rainy days is April (8.1 days).
The month with the least rainy days is November (3.5 days).
Average snowfall in December
East Mahanoy Junction, PA
- Average snowfall in December: 0.43"
The months with the highest snowfall are January and November (0.71").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in December
East Mahanoy Junction, PA
- Average snowfall days in December: 3.8 days
The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
East Mahanoy Junction, 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 2min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in December
East Mahanoy Junction, PA
- Average sunshine days in December: 24.9 days
The month with the most sunshine days is December (24.9 days).
The month with the least sunshine days is May (19.9 days).
Average UV index in December
East Mahanoy Junction, PA
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
East Mahanoy Junction, PA
- Average cloud cover in December: 54
The month with the most cloud cover is February (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in December
East Mahanoy Junction, PA
- Average visibility in December: 5mi
The months with the highest visibility are March and April (6mi).
The months with the lowest visibility are January, February, May, June, July, August, September, October, November and December (5mi).
East Mahanoy Junction, Pennsylvania, USA
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