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
The move into December indicates a reduction in the average high-temperature, down from November's frosty 49.1°F (9.5°C) to a wintry 39.4°F (4.1°C). An average temperature of 28.2°F (-2.1°C) marks the nights in Murrysville, Pennsylvania, in December.Humidity
In Murrysville, Pennsylvania, the average relative humidity in December is 84%.Rainfall
In December, in Murrysville, Pennsylvania, the rain falls for 9.3 days. Throughout December, 1.54" (39mm) of precipitation is accumulated. In Murrysville, during the entire year, the rain falls for 151 days and collects up to 20.39" (518mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Murrysville, in December, snow falls for 6.2 days, with typically accumulated 1.81" (46mm) of snow. In Murrysville, during the entire year, snow falls for 35.4 days and aggregates up to 10.35" (263mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year in Murrysville, Pennsylvania.On the first day of December, sunrise is at 7:23 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:02 pm EST.
Sunshine
The average sunshine in December in Murrysville, Pennsylvania, is 3.3h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index, 1 during December, leads to the following recommendations:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Frequently asked questions
How cold is it in Murrysville in December?
What is the average humidity in December in Murrysville?
How much does it rain in Murrysville in December?
How many days does it snow in December in Murrysville?
What is the month with the shortest days in Murrysville?
How many hours of daylight does Murrysville have in December?
When is the sunrise / sunset in December in Murrysville?
How many hours of sunshine does Murrysville have in December?
When is the lowest UV index in Murrysville?
What is the UV index intensity in December in Murrysville?
Average temperature in December
Murrysville, PA
- Average high temperature in December: 39.4°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (33.1°F).
- Average low temperature in December: 28.2°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in December
Murrysville, PA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Murrysville, PA
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Murrysville, PA
- Average humidity in December: 84%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (76%).
Average rainfall in December
Murrysville, PA
- Average rainfall in December: 1.54"
The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is November (1.06").
Average rainfall days in December
Murrysville, PA
- Average rainfall days in December: 9.3 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is January (7.7 days).
Average snowfall in December
Murrysville, PA
- Average snowfall in December: 1.81"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Murrysville, PA
- Average snowfall days in December: 6.2 days
The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Murrysville, 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 18min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
Murrysville, PA
- Average sunshine days in December: 17.1 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (10.1 days).
Average UV index in December
Murrysville, PA
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Murrysville, PA
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Murrysville, PA
- Average visibility in December: 5mi
The months with the highest visibility are April, June, August and November (6mi).
The months with the lowest visibility are January, February, March, May, July, September, October and December (5mi).
Murrysville, Pennsylvania, USA
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