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 brings a drop in Porters Sideling's average high-temperature, falling from a cool 51.1°F (10.6°C) in November to a wintry 42.1°F (5.6°C). December witnesses an average nighttime temperature of 30.4°F (-0.9°C).Humidity
In Porters Sideling, the average relative humidity in December is 79%.Rainfall
In Porters Sideling, during December, the rain falls for 10.9 days and regularly aggregates up to 2.68" (68mm) of precipitation. In Porters Sideling, Pennsylvania, during the entire year, the rain falls for 164.9 days and collects up to 32.68" (830mm) of precipitation.Snowfall
Months with snowfall in Porters Sideling are January through May, October through December. In Porters Sideling, Pennsylvania, in December, snow falls for 5.1 days, with typically accumulated 1.85" (47mm) of snow. Throughout the year, there are 26.7 snowfall days, and 14.37" (365mm) of snow is accumulated.Daylight
The month with the shortest days in Porters Sideling, Pennsylvania, is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:10 am and sunset at 4:43 pm. On the last day of December, sunrise is at 7:28 am and sunset at 4:53 pm EST.
Sunshine
The average sunshine in December is 5h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.Note: An average UV index of 2 in December transforms into this advice:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Frequently asked questions
How cold is it in Porters Sideling in December?
What is the average humidity in December in Porters Sideling?
How many days does it rain in December in Porters Sideling?
How much does it snow in Porters Sideling in December?
What is the month with the shortest days in Porters Sideling?
How many hours of daylight does Porters Sideling have in December?
When are sunrise and sunset in December in Porters Sideling?
How long on average sun shines in December in Porters Sideling?
What is the month with the lowest UV index in Porters Sideling?
What is the UV index reading in December in Porters Sideling?
Average temperature in December
Porters Sideling, PA
- Average high temperature in December: 42.1°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in December: 30.4°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in December
Porters Sideling, PA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Porters Sideling, PA
- Average wind speed in December: 8mph
The windiest month (with the highest average wind speed) is March (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Porters Sideling, PA
- Average humidity in December: 79%
The month with the highest relative humidity is May (81%).
The months with the lowest relative humidity are March, April and November (76%).
Average rainfall in December
Porters Sideling, PA
- Average rainfall in December: 2.68"
The wettest month (with the highest rainfall) is August (3.39").
The driest month (with the least rainfall) is September (2.2").
Average rainfall days in December
Porters Sideling, PA
- Average rainfall days in December: 10.9 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in December
Porters Sideling, PA
- Average snowfall in December: 1.85"
The month with the highest snowfall is March (4.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Porters Sideling, PA
- Average snowfall days in December: 5.1 days
The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Porters Sideling, PA
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Porters Sideling, PA
- Average sunshine days in December: 16.2 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is May (10.5 days).
Average UV index in December
Porters Sideling, PA
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Porters Sideling, PA
- Average cloud cover in December: 47
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Porters Sideling, PA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).
Porters Sideling, Pennsylvania, USA
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