December weather forecastNelson, PA
December
Weather in December
The first month of the winter, December, is still a cold month in Nelson, Pennsylvania, with temperature in the range of an average low of 24.6°F (-4.1°C) and an average high of 34.5°F (1.4°C).Temperature
The transition into December is accompanied by a temperature decrease, with the average high-temperature shifting from a chilly 44.1°F (6.7°C) in November to a cold 34.5°F (1.4°C). Nelson records an average nighttime low of 24.6°F (-4.1°C) in December.Humidity
In Nelson, the average relative humidity in December is 85%.Rainfall
In December, the rain falls for 12.1 days. Throughout December, 2.2" (56mm) of precipitation is accumulated. Throughout the year, there are 168.3 rainfall days, and 28.19" (716mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Nelson, in December, snow falls for 16.2 days, with typically accumulated 6.02" (153mm) of snow. Throughout the year, there are 80.4 snowfall days, and 33.03" (839mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:17 am and sunset at 4:38 pm. On the last day of December, in Nelson, Pennsylvania, sunrise is at 7:36 am and sunset at 4:47 pm EST.
Sunshine
The months with the least sunshine are January, February and December, with an average of 3.1h of sunshine.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high daily UV index of 1 during December translates into the following directions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Nelson, PA
- Average high temperature in December: 34.5°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in December: 24.6°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in December
Nelson, PA
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Nelson, PA
- Average wind speed in December: 8.9mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Nelson, PA
- Average humidity in December: 85%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, May and June (78%).
Average rainfall in December
Nelson, PA
- Average rainfall in December: 2.2"
The wettest month (with the highest rainfall) is April (2.95").
The driest month (with the least rainfall) is November (1.81").
Average rainfall days in December
Nelson, PA
- Average rainfall days in December: 12.1 days
The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is February (7.2 days).
Average snowfall in December
Nelson, PA
- Average snowfall in December: 6.02"
The month with the highest snowfall is February (7.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Nelson, PA
- Average snowfall days in December: 16.2 days
The month with the highest number of snowfall days is January (18.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Nelson, PA
- Average daylight in December: 9h and 12min
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 6min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 3h and 6min).
Average sunshine days in December
Nelson, PA
- Average sunshine days in December: 8 days
The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (7.1 days).
Average UV index in December
Nelson, 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
Nelson, PA
- Average cloud cover in December: 70
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in December
Nelson, PA
- Average visibility in December: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
