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 commencement of December involves a temperature shift, with the average high-temperature dropping from a chilly 43.2°F (6.2°C) in November to a cold 32.9°F (0.5°C). An average nighttime temperature of 23.2°F (-4.9°C) is noted in Galena during the month of December.Humidity
The average relative humidity in December in Galena is 87%.Rainfall
In Galena, in December, during 11.7 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. In Galena, during the entire year, the rain falls for 171.6 days and collects up to 34.09" (866mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Galena, New York, in December, during 17.2 snowfall days, 8.7" (221mm) of snow is typically accumulated. Throughout the year, in Galena, New York, there are 90.9 snowfall days, and 44.8" (1138mm) of snow is accumulated.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:13 am and sunset at 4:29 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 4:38 pm EST.
Sunshine
In December, the average sunshine is 2.9h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Galena, New York. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 1 during December leads to these advisories:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Galena?
What is the average humidity in December in Galena?
How many days does it rain in December in Galena?
How many days does it snow in December in Galena?
What is the month with the shortest days in Galena?
What is the average length of the day in December in Galena?
When are sunrise and sunset in December in Galena?
How many hours of sunshine does Galena have in December?
What is the month with the lowest UV index in Galena?
What is the UV index reading in December in Galena?
Average temperature in December
Galena, NY
- Average high temperature in December: 32.9°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in December: 23.2°F
The month with the highest average low temperature is July (57°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).
Average pressure in December
Galena, NY
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Galena, NY
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Galena, NY
- Average humidity in December: 87%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April and May (79%).
Average rainfall in December
Galena, NY
- Average rainfall in December: 2.8"
The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is September (2.28").
Average rainfall days in December
Galena, NY
- Average rainfall days in December: 11.7 days
The months with the highest number of rainy days are May and July (18.3 days).
The month with the least rainy days is February (8.2 days).
Average snowfall in December
Galena, NY
- Average snowfall in December: 8.7"
The month with the highest snowfall is February (9.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Galena, NY
- Average snowfall days in December: 17.2 days
The month with the highest number of snowfall days is January (19.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Galena, NY
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 2h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 2h and 30min).
Average sunshine days in December
Galena, NY
- Average sunshine days in December: 7.5 days
The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is February (4.6 days).
Average UV index in December
Galena, NY
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Galena, NY
- Average cloud cover in December: 71
The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in December
Galena, NY
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
Galena, New York, USA
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