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 shift from November to December involves a decrease in the average high-temperature, dropping from a frosty 43.3°F (6.3°C) to a subzero cold 30.9°F (-0.6°C). December nights experience a consistent temperature drop to a still freezing cold 21.2°F (-6°C).Humidity
In Wales, Wisconsin, the average relative humidity in December is 83%.Rainfall
December is the month with the least rainfall. Rain falls for 5.7 days and accumulates 0.75" (19mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Wales, in December, snow falls for 10.5 days, with typically accumulated 1.69" (43mm) of snow. Throughout the year, in Wales, Wisconsin, there are 48.5 snowfall days, and 11.02" (280mm) 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 the month, sunrise is at 7:05 am and sunset at 4:19 pm. On the last day of December, sunrise is at 7:24 am and sunset at 4:28 pm CST.
Sunshine
In Wales, the average sunshine in December is 3.7h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 1 during December leads to these advisories:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Frequently asked questions
How cold is December in Wales?
What is the average humidity in December in Wales?
What is the driest month in Wales?
How much does it rain in Wales in December?
How many days does it snow in December in Wales?
What is the month with the shortest days in Wales?
What is the average length of the day in December in Wales?
When are sunrise and sunset in December in Wales?
How long on average sun shines in December in Wales?
What are the months with the lowest UV index in Wales?
What is the UV index reading in December in Wales?
Average temperature in December
Wales, WI
- Average high temperature in December: 30.9°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (24.6°F).
- Average low temperature in December: 21.2°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (13.1°F).
Average pressure in December
Wales, WI
- Average pressure in December: 30.09"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Wales, WI
- Average wind speed in December: 9.5mph
The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in December
Wales, WI
- Average humidity in December: 83%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Wales, WI
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is July (2.52").
The driest month (with the least rainfall) is December (0.75").
Average rainfall days in December
Wales, WI
- Average rainfall days in December: 5.7 days
The month with the highest number of rainy days is July (16.3 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in December
Wales, WI
- Average snowfall in December: 1.69"
The month with the highest snowfall is January (2.99").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Wales, WI
- Average snowfall days in December: 10.5 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Wales, WI
- 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: 3h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in December
Wales, WI
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is July (11.2 days).
Average UV index in December
Wales, WI
- 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
Wales, WI
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are August and September (Cloud cover 32).
Average visibility in December
Wales, WI
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Wales, Wisconsin, USA
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