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
Mount Pleasant observes a minor decrease in the average high-temperature with the arrival of December, falling from November's chilly 48.9°F (9.4°C) to a wintry 39.2°F (4°C). Throughout December, Mount Pleasant records an average temperature of 27.7°F (-2.4°C) at night.Humidity
In Mount Pleasant, the average relative humidity in December is 84%.Rainfall
In Mount Pleasant, in December, during 13.1 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. Throughout the year, there are 185.4 rainfall days, and 34.02" (864mm) of precipitation is accumulated.Snowfall
Months with snowfall in Mount Pleasant, Pennsylvania, are January through May, October through December. In Mount Pleasant, during December, snow falls for 12.8 days and regularly aggregates up to 6.1" (155mm) of snow. In Mount Pleasant, during the entire year, snow falls for 63.2 days and aggregates up to 29.02" (737mm) of snow.Daylight
December has the shortest days of the year in Mount Pleasant, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:21 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:02 pm EST.
Sunshine
In Mount Pleasant, the average sunshine in December is 3.6h.UV index
The months with the lowest UV index in Mount Pleasant, Pennsylvania, are January through March, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
Is December cold in Mount Pleasant?
What is the average humidity in December in Mount Pleasant?
How much does it rain in Mount Pleasant in December?
How much does it snow in Mount Pleasant in December?
What is the month with the shortest days in Mount Pleasant?
What is the average length of the day in December in Mount Pleasant?
What time are sunrise and sunset in December in Mount Pleasant?
How long on average sun shines in December in Mount Pleasant?
What are the months with the lowest UV index in Mount Pleasant?
What is the UV index reading in December in Mount Pleasant?
Average temperature in December
Mount Pleasant, PA
- Average high temperature in December: 39.2°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.3°F).
- Average low temperature in December: 27.7°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in December
Mount Pleasant, 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
Mount Pleasant, PA
- Average wind speed in December: 7.9mph
The windiest month (with the highest average wind speed) is January (8.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Mount Pleasant, PA
- Average humidity in December: 84%
The months with the highest relative humidity are January and February (85%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in December
Mount Pleasant, PA
- Average rainfall in December: 3.03"
The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is November (2.01").
Average rainfall days in December
Mount Pleasant, PA
- Average rainfall days in December: 13.1 days
The month with the highest number of rainy days is May (22 days).
The month with the least rainy days is January (9.8 days).
Average snowfall in December
Mount Pleasant, PA
- Average snowfall in December: 6.1"
The month with the highest snowfall is January (7.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Mount Pleasant, PA
- Average snowfall days in December: 12.8 days
The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mount Pleasant, PA
- Average daylight in December: 9h and 2min
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 4min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
Mount Pleasant, PA
- Average sunshine days in December: 9.7 days
The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is January (6.5 days).
Average UV index in December
Mount Pleasant, PA
- Average UV index in December: 2
The month with the highest UV index is July (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
Mount Pleasant, PA
- Average cloud cover in December: 64
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Mount Pleasant, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).
Mount Pleasant, Pennsylvania, USA
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