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 decrease of average high-temperatures is mild in December, with a decline from a chilly 48°F (8.9°C) in November to a cold 38.8°F (3.8°C). In December, the nighttime temperature in Whitney lowers to an average of 27.5°F (-2.5°C).Humidity
The average relative humidity in December in Whitney is 84%.Rainfall
In December, in Whitney, the rain falls for 11.5 days. Throughout December, 2.2" (56mm) of precipitation is accumulated. In Whitney, during the entire year, the rain falls for 173.8 days and collects up to 25.55" (649mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Whitney. In December, it is snowing for 11.8 days. Throughout December, 4.17" (106mm) of snow is accumulated. In Whitney, Pennsylvania, during the entire year, snow falls for 58.9 days and aggregates up to 18.62" (473mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:21 am and sunset at 4:52 pm. On the last day of December, in Whitney, Pennsylvania, sunrise is at 7:40 am and sunset at 5:01 pm EST.
Sunshine
In December, the average sunshine in Whitney is 3.5h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 1 during December leads to these instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Frequently asked questions
How cold does it get in Whitney in December?
What is the average humidity in December in Whitney?
How much does it rain in Whitney in December?
How much does it snow in Whitney in December?
What is the month with the shortest days in Whitney?
What is the average length of the day in December in Whitney?
When are sunrise and sunset in December in Whitney?
How many hours of sunshine does Whitney have in December?
What is the month with the lowest UV index in Whitney?
What is the UV index reading in December in Whitney?
Average temperature in December
Whitney, PA
- Average high temperature in December: 38.8°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in December: 27.5°F
The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in December
Whitney, 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
Whitney, PA
- Average wind speed in December: 8.2mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Whitney, PA
- Average humidity in December: 84%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April, June, July and August (78%).
Average rainfall in December
Whitney, PA
- Average rainfall in December: 2.2"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is November (1.38").
Average rainfall days in December
Whitney, PA
- Average rainfall days in December: 11.5 days
The month with the highest number of rainy days is May (20.4 days).
The month with the least rainy days is January (9.5 days).
Average snowfall in December
Whitney, PA
- Average snowfall in December: 4.17"
The month with the highest snowfall is January (4.96").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Whitney, PA
- Average snowfall days in December: 11.8 days
The month with the highest number of snowfall days is January (17.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Whitney, 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 3min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
Whitney, PA
- Average sunshine days in December: 9.9 days
The month with the most sunshine days is November (14.4 days).
The month with the least sunshine days is January (7 days).
Average UV index in December
Whitney, PA
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Whitney, PA
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Whitney, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The month with the lowest visibility is January (4mi).
Whitney, Pennsylvania, USA
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