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 arrival of December corresponds with a temperature reduction, down from November's wintry 36.5°F (2.5°C) to a subzero cold 24.6°F (-4.1°C). A consistent average low of 16°F (-8.9°C) is noted throughout December, only a small step down from its daytime high.Humidity
The average relative humidity in December is 88%.Rainfall
In Summit Lake, in December, it is raining for 4.6 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, there are 120.4 rainfall days, and 22.99" (584mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Summit Lake, Wisconsin, in December, during 17.6 snowfall days, 7.36" (187mm) of snow is typically accumulated. Throughout the year, there are 96.4 snowfall days, and 43.19" (1097mm) of snow is accumulated.Daylight
December has the shortest days of the year in Summit Lake, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:16 am and sunset at 4:15 pm. On the last day of December, sunrise is at 7:36 am and sunset at 4:23 pm CST.
Sunshine
In Summit Lake, Wisconsin, the average sunshine in December is 2.7h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Summit Lake. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.Note: An average maximum UV index of 1 in December leads to these recommendations:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Frequently asked questions
How cold is December in Summit Lake?
What is the average humidity in December in Summit Lake?
How many days does it rain in December in Summit Lake?
How much does it snow in Summit Lake in December?
What is the month with the shortest days in Summit Lake?
What is the average length of the day in December in Summit Lake?
When is the sunrise / sunset in December in Summit Lake?
How many hours of sunshine does Summit Lake have in December?
When is the lowest UV index in Summit Lake?
What is the UV index intensity in December in Summit Lake?
Average temperature in December
Summit Lake, WI
- Average high temperature in December: 24.6°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (19.8°F).
- Average low temperature in December: 16°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 (8.4°F).
Average pressure in December
Summit Lake, WI
- Average pressure in December: 30.06"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Summit Lake, WI
- Average wind speed in December: 8.1mph
The windiest months (with the highest average wind speed) are April and November (8.5mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in December
Summit Lake, WI
- Average humidity in December: 88%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is May (72%).
Average rainfall in December
Summit Lake, WI
- Average rainfall in December: 1.46"
The wettest month (with the highest rainfall) is June (2.83").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in December
Summit Lake, WI
- Average rainfall days in December: 4.6 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is February (2.4 days).
Average snowfall in December
Summit Lake, WI
- Average snowfall in December: 7.36"
The month with the highest snowfall is February (7.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Summit Lake, WI
- Average snowfall days in December: 17.6 days
The month with the highest number of snowfall days is January (20.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Summit Lake, WI
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 2h and 4min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 12min).
Average sunshine days in December
Summit Lake, WI
- Average sunshine days in December: 13.8 days
The month with the most sunshine days is September (15.3 days).
The month with the least sunshine days is February (10.8 days).
Average UV index in December
Summit Lake, WI
- 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
Summit Lake, WI
- Average cloud cover in December: 74
The months with the most cloud cover are January and February (Cloud cover 79).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in December
Summit Lake, WI
- Average visibility in December: 5mi
The months with the highest visibility are May, June and October (6mi).
The months with the lowest visibility are January and February (4mi).
Summit Lake, Wisconsin, USA
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