December weather forecastMcGovern, PA
December
Weather in December
The first month of the winter, December, is also an icy month in McGovern, Pennsylvania, with an average temperature ranging between min 28.6°F (-1.9°C) and max 40.1°F (4.5°C).Temperature
December shows a mild decline in the average high-temperature, falling from November's frosty 49.1°F (9.5°C) to a wintry 40.1°F (4.5°C). McGovern records a mean low-temperature of 28.6°F (-1.9°C) in December.Humidity
In McGovern, the average relative humidity in December is 83%.Rainfall
In McGovern, Pennsylvania, during December, the rain falls for 7.5 days and regularly aggregates up to 0.71" (18mm) of precipitation. In McGovern, during the entire year, the rain falls for 120.6 days and collects up to 9.49" (241mm) of precipitation.Snowfall
January through May, November and December are months with snowfall. In McGovern, in December, snow falls for 5.5 days, with typically accumulated 0.43" (11mm) of snow. Throughout the year, there are 28.5 snowfall days, and 2.95" (75mm) of snow is accumulated.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of December in McGovern, Pennsylvania, sunrise is at 7:24 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 5:05 pm EST.
Sunshine
In McGovern, the average sunshine in December is 3.5h.UV index
The months with the lowest UV index are January through March, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. When the Sun is at its strongest around midday, find shade and limit exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
McGovern, PA
- Average high temperature in December: 40.1°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 28.6°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in December
McGovern, 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 (29.95"Hg).
Average wind speed in December
McGovern, PA
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is January (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).
Average humidity in December
McGovern, PA
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (76%).
Average rainfall in December
McGovern, PA
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is July (1.06").
The driest month (with the least rainfall) is September (0.55").
Average rainfall days in December
McGovern, PA
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in December
McGovern, PA
- Average snowfall in December: 0.43"
The months with the highest snowfall are January and February (0.79").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
McGovern, PA
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
McGovern, PA
- Average daylight in December: 9h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 3h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
McGovern, PA
- Average sunshine days in December: 19.6 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is May (13.5 days).
Average UV index in December
McGovern, 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, March, November and December (UV index 2).
Average cloud cover in December
McGovern, PA
- Average cloud cover in December: 64
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
McGovern, PA
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
