December weather forecastWindham, PA
December
Weather in December
The first month of the winter, December, is also an icy month in Windham, Pennsylvania, with an average temperature fluctuating between 34.5°F (1.4°C) and 24.8°F (-4°C).Temperature
Windham's transition into December involves a shift in temperature, receding from a chilly 44.6°F (7°C) in November to an icy 34.5°F (1.4°C). Windham's temperature tends to fall to an average low of 24.8°F (-4°C) during the nights of December.Humidity
The average relative humidity in December in Windham is 85%.Rainfall
In Windham, in December, during 11.5 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. In Windham, during the entire year, the rain falls for 171.9 days and collects up to 32.09" (815mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 15.4 days. Throughout December, 5.43" (138mm) of snow is accumulated. In Windham, during the entire year, snow falls for 79.3 days and aggregates up to 33.46" (850mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:14 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 4:43 pm EST.
Sunshine
In December, the average sunshine is 3.1h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 1 during December translates into the following directions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. When the Sun is at its strongest around midday, find shade and limit exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Windham, PA
- Average high temperature in December: 34.5°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (28.4°F).
- Average low temperature in December: 24.8°F
The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).
Average pressure in December
Windham, 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 (29.93"Hg).
Average wind speed in December
Windham, PA
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is January (9mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in December
Windham, 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, June and July (79%).
Average rainfall in December
Windham, PA
- Average rainfall in December: 2.44"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is January (2.13").
Average rainfall days in December
Windham, PA
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (8.9 days).
Average snowfall in December
Windham, PA
- Average snowfall in December: 5.43"
The month with the highest snowfall is February (8.58").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Windham, PA
- Average snowfall days in December: 15.4 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
Windham, 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: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 54min).
Average sunshine days in December
Windham, PA
- Average sunshine days in December: 8.5 days
The month with the most sunshine days is September (13.7 days).
The month with the least sunshine days is February (6 days).
Average UV index in December
Windham, 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
Windham, PA
- Average cloud cover in December: 68
The month with the most cloud cover is February (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in December
Windham, 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).
