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
Setting in of December comes with a decrease in the average high-temperature, moving from a chilly 47.5°F (8.6°C) in November to a cold 37.9°F (3.3°C). In December, Mahanoy Plane experiences an average nighttime temperature of 27.5°F (-2.5°C).Humidity
In December, the average relative humidity is 82%.Rainfall
In December, in Mahanoy Plane, the rain falls for 10.7 days. Throughout December, 2.52" (64mm) of precipitation is accumulated. In Mahanoy Plane, Pennsylvania, during the entire year, the rain falls for 164.2 days and collects up to 33.5" (851mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Mahanoy Plane. In December, in Mahanoy Plane, it is snowing for 6.5 days. Throughout December, 3.5" (89mm) of snow is accumulated. In Mahanoy Plane, Pennsylvania, during the entire year, snow falls for 40.3 days and aggregates up to 24.65" (626mm) 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 December, sunrise is at 7:10 am and sunset at 4:38 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:47 pm EST.
Sunshine
The average sunshine in December is 4.4h.UV index
The months with the lowest UV index in Mahanoy Plane are January through March, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum daily UV index of 2 during December morphs into the following directions:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
Is December cold in Mahanoy Plane?
What is the average humidity in December in Mahanoy Plane?
How many days does it rain in December in Mahanoy Plane?
How many days does it snow in December in Mahanoy Plane?
What is the month with the shortest days in Mahanoy Plane?
What is the average length of the day in December in Mahanoy Plane?
When is the sunrise / sunset in December in Mahanoy Plane?
How long on average sun shines in December in Mahanoy Plane?
When is the lowest UV index in Mahanoy Plane?
What is the UV index reading in December in Mahanoy Plane?
Average temperature in December
Mahanoy Plane, PA
- Average high temperature in December: 37.9°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 (31.6°F).
- Average low temperature in December: 27.5°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
Mahanoy Plane, 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 (29.94"Hg).
Average wind speed in December
Mahanoy Plane, PA
- Average wind speed in December: 7.6mph
The windiest months (with the highest average wind speed) are March and April (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Mahanoy Plane, PA
- Average humidity in December: 82%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Mahanoy Plane, PA
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is May (3.54").
The driest month (with the least rainfall) is September (2.2").
Average rainfall days in December
Mahanoy Plane, PA
- Average rainfall days in December: 10.7 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is January (8.5 days).
Average snowfall in December
Mahanoy Plane, PA
- Average snowfall in December: 3.5"
The month with the highest snowfall is January (5.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Mahanoy Plane, PA
- Average snowfall days in December: 6.5 days
The month with the highest number of snowfall days is February (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mahanoy Plane, 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 24min).
The months with the least sunshine are January and February (Average sunshine: 4h and 18min).
Average sunshine days in December
Mahanoy Plane, PA
- Average sunshine days in December: 16.4 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is July (9.2 days).
Average UV index in December
Mahanoy Plane, PA
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Mahanoy Plane, PA
- Average cloud cover in December: 54
The months with the most cloud cover are February and December (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in December
Mahanoy Plane, 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).
Mahanoy Plane, Pennsylvania, USA
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