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 onset of December introduces a moderate change in Crosby's weather, with average high-temperatures falling from November's chilly 43.3°F (6.3°C) to an icy 34°F (1.1°C). Throughout December, Crosby experiences a low-temperature average of 23.9°F (-4.5°C).Humidity
In Crosby, the average relative humidity in December is 87%.Rainfall
In Crosby, during December, the rain falls for 9.3 days and regularly aggregates up to 2.6" (66mm) of precipitation. Throughout the year, there are 160.5 rainfall days, and 29.88" (759mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In December, in Crosby, it is snowing for 16.1 days. Throughout December, 8.15" (207mm) of snow is accumulated. In Crosby, during the entire year, snow falls for 79.8 days and aggregates up to 40.12" (1019mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year in Crosby, Pennsylvania.On the first day of the month, sunrise is at 7:21 am and sunset at 4:43 pm. On the last day of December, in Crosby, sunrise is at 7:40 am and sunset at 4:53 pm EST.
Sunshine
The months with the least sunshine are January and December, with an average of 2.5h of sunshine.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Crosby. A UV Index value of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 1 during December leads to these advisories:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Frequently asked questions
How cold is it in Crosby in December?
What is the average humidity in December in Crosby?
How many days does it rain in December in Crosby?
How much does it snow in Crosby in December?
What is the month with the shortest days in Crosby?
What is the average length of the day in December in Crosby?
What time are sunrise and sunset in December in Crosby?
What is the month with the least sunshine in Crosby?
How many hours of sunshine does Crosby have in December?
What are the months with the lowest UV index in Crosby?
What is the UV index intensity in December in Crosby?
Average temperature in December
Crosby, PA
- Average high temperature in December: 34°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 (27.9°F).
- Average low temperature in December: 23.9°F
The month with the highest average low temperature is July (56.5°F).
The coldest month (with the lowest average low temperature) is January (15.6°F).
Average pressure in December
Crosby, 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
Crosby, PA
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in December
Crosby, PA
- Average humidity in December: 87%
The month with the highest relative humidity is February (89%).
The months with the lowest relative humidity are May, June and July (79%).
Average rainfall in December
Crosby, PA
- Average rainfall in December: 2.6"
The wettest month (with the highest rainfall) is April (3.54").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in December
Crosby, PA
- Average rainfall days in December: 9.3 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in December
Crosby, PA
- Average snowfall in December: 8.15"
The month with the highest snowfall is February (10.47").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Crosby, PA
- Average snowfall days in December: 16.1 days
The month with the highest number of snowfall days is January (18 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Crosby, PA
- Average daylight in December: 9h and 1min
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: 2h and 3min
The month with the most sunshine is July (Average sunshine: 9h and 30min).
The months with the least sunshine are January and December (Average sunshine: 2h and 30min).
Average sunshine days in December
Crosby, PA
- Average sunshine days in December: 9.2 days
The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (8.1 days).
Average UV index in December
Crosby, 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
Crosby, PA
- Average cloud cover in December: 76
The month with the most cloud cover is January (Cloud cover 78).
The months with the least cloud cover are July and August (Cloud cover 43).
Average visibility in December
Crosby, PA
- Average visibility in December: 4mi
The months with the highest visibility are March, April, May, June, July, October and November (5mi).
The months with the lowest visibility are January, February, August, September and December (4mi).
Crosby, Pennsylvania, USA
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