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
Gary's transition into December involves a gentle shift in temperature, receding from a cool 52.5°F (11.4°C) in November to a frosty 44.4°F (6.9°C). Gary observes an average nighttime temperature of 31.1°F (-0.5°C) during December.Humidity
The average relative humidity in December in Gary is 81%.Rainfall
In Gary, West Virginia, in December, it is raining for 11.6 days, with typically 2.8" (71mm) of accumulated precipitation. In Gary, West Virginia, during the entire year, the rain falls for 172.5 days and collects up to 29.41" (747mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. December is the month with the most snowfall in Gary. Snow falls for 7.8 days and accumulates 4.41" (112mm) of snow.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:22 am and sunset at 5:08 pm. On the last day of the month, sunrise is at 7:40 am and sunset at 5:18 pm EST.
Sunshine
In Gary, the average sunshine in December is 4.7h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Gary, West Virginia. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold in Gary during December?
What is the average humidity in December in Gary?
How many days does it rain in December in Gary?
What is the snowiest month in Gary?
How many days does it snow in December in Gary?
What is the month with the shortest days in Gary?
How many hours of daylight does Gary have in December?
When is the sunrise / sunset in December in Gary?
How many hours of sunshine does Gary have in December?
What are the months with the lowest UV index in Gary?
How high is the UV index in December in Gary?
Average temperature in December
Gary, WV
- Average high temperature in December: 44.4°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (39.2°F).
- Average low temperature in December: 31.1°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 (25°F).
Average pressure in December
Gary, WV
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in December
Gary, WV
- Average wind speed in December: 6.5mph
The windiest month (with the highest average wind speed) is January (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Gary, WV
- Average humidity in December: 81%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are July, August and November (76%).
Average rainfall in December
Gary, WV
- Average rainfall in December: 2.8"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in December
Gary, WV
- Average rainfall days in December: 11.6 days
The month with the highest number of rainy days is May (19.7 days).
The months with the least rainy days are January and November (10.1 days).
Average snowfall in December
Gary, WV
- Average snowfall in December: 4.41"
The month with the highest snowfall is December (4.41").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Gary, WV
- Average snowfall days in December: 7.8 days
The month with the highest number of snowfall days is January (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Gary, WV
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Gary, WV
- Average sunshine days in December: 13.8 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is May (9.2 days).
Average UV index in December
Gary, WV
- Average UV index in December: 2
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
Gary, WV
- Average cloud cover in December: 55
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are June and August (Cloud cover 36).
Average visibility in December
Gary, WV
- 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).
Gary, West Virginia, USA
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