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 is characterized by a reduction in the average high-temperature, from a chilly 44.1°F (6.7°C) in November to a cold 34.7°F (1.5°C). An average nighttime temperature of 25°F (-3.9°C) is noted in Heise Run during the month of December.Humidity
In Heise Run, the average relative humidity in December is 85%.Rainfall
In December, in Heise Run, Pennsylvania, the rain falls for 12.1 days. Throughout December, 2.48" (63mm) of precipitation is accumulated. In Heise Run, Pennsylvania, during the entire year, the rain falls for 175.2 days and collects up to 30.39" (772mm) of precipitation.Snowfall
Months with snowfall in Heise Run are January through May, October through December. In Heise Run, Pennsylvania, in December, during 16.1 snowfall days, 7.09" (180mm) of snow is typically accumulated. Throughout the year, in Heise Run, there are 80.1 snowfall days, and 36.85" (936mm) of snow is accumulated.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:17 am and sunset at 4:39 pm. On the last day of December, in Heise Run, Pennsylvania, sunrise is at 7:36 am and sunset at 4:48 pm EST.
Sunshine
With an average of 3.1h of sunshine, December has the least sunshine of the year in Heise Run.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Heise Run. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index, 1 during December, leads to the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Frequently asked questions
How cold is it in Heise Run in December?
What is the average humidity in December in Heise Run?
How much does it rain in Heise Run in December?
How many days does it snow in December in Heise Run?
What is the month with the shortest days in Heise Run?
What is the average length of the day in December in Heise Run?
When are sunrise and sunset in December in Heise Run?
What is the month with the least sunshine in Heise Run?
How long on average sun shines in December in Heise Run?
What are the months with the lowest UV index in Heise Run?
What is the UV index reading in December in Heise Run?
Average temperature in December
Heise Run, PA
- Average high temperature in December: 34.7°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in December: 25°F
The month with the highest average low temperature is July (57.2°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in December
Heise Run, 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
Heise Run, PA
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Heise Run, PA
- Average humidity in December: 85%
The month with the highest relative humidity is February (86%).
The month with the lowest relative humidity is June (78%).
Average rainfall in December
Heise Run, PA
- Average rainfall in December: 2.48"
The wettest month (with the highest rainfall) is April (3.35").
The driest month (with the least rainfall) is November (1.97").
Average rainfall days in December
Heise Run, PA
- Average rainfall days in December: 12.1 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is February (8.5 days).
Average snowfall in December
Heise Run, PA
- Average snowfall in December: 7.09"
The month with the highest snowfall is February (9.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Heise Run, PA
- Average snowfall days in December: 16.1 days
The month with the highest number of snowfall days is January (18.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Heise Run, PA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 3h and 6min).
Average sunshine days in December
Heise Run, PA
- Average sunshine days in December: 7.8 days
The month with the most sunshine days is September (14 days).
The month with the least sunshine days is February (7.4 days).
Average UV index in December
Heise Run, PA
- Average UV index in December: 1
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 and December (UV index 1).
Average cloud cover in December
Heise Run, PA
- Average cloud cover in December: 69
The month with the most cloud cover is December (Cloud cover 69).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility in December
Heise Run, PA
- Average visibility in December: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is February (4mi).
Heise Run, Pennsylvania, USA
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