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
A decrease in the average high-temperature is observed during December, shifting from an icy 39.2°F (4°C) in November to a freezing cold 25.3°F (-3.7°C). Granton's average low-temperature for the month of December records at 14.9°F (-9.5°C).Humidity
In December, the average relative humidity is 89%.Rainfall
In Granton, during December, the rain falls for 4.5 days and regularly aggregates up to 0.83" (21mm) of precipitation. Throughout the year, there are 117.6 rainfall days, and 15.75" (400mm) of precipitation is accumulated.Snowfall
Months with snowfall in Granton are January through May, October through December. December is the month with the most snowfall in Granton. Snow falls for 14.5 days and accumulates 3.9" (99mm) of snow.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year in Granton.On the first day of the month, sunrise is at 7:19 am and sunset at 4:23 pm. On the last day of December, in Granton, Wisconsin, sunrise is at 7:38 am and sunset at 4:31 pm CST.
Sunshine
In Granton, the average sunshine in December is 3h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Granton. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: An average UV index of 1 in December transforms into this advice:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
How cold is December in Granton?
What is the average humidity in December in Granton?
How many days does it rain in December in Granton?
When does it snow the most in Granton?
How many days does it snow in December in Granton?
What is the month with the shortest days in Granton?
What is the average length of the day in December in Granton?
What time are sunrise and sunset in December in Granton?
How long on average sun shines in December in Granton?
What is the month with the lowest UV index in Granton?
What is the UV index reading in December in Granton?
Average temperature in December
Granton, WI
- Average high temperature in December: 25.3°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (19.6°F).
- Average low temperature in December: 14.9°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (6.8°F).
Average pressure in December
Granton, WI
- Average pressure in December: 30.1"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Granton, WI
- Average wind speed in December: 9.1mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in December
Granton, WI
- Average humidity in December: 89%
The months with the highest relative humidity are January and February (91%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Granton, WI
- Average rainfall in December: 0.83"
The wettest month (with the highest rainfall) is June (2.13").
The driest month (with the least rainfall) is February (0.59").
Average rainfall days in December
Granton, WI
- Average rainfall days in December: 4.5 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (3.2 days).
Average snowfall in December
Granton, WI
- Average snowfall in December: 3.9"
The month with the highest snowfall is December (3.9").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Granton, WI
- Average snowfall days in December: 14.5 days
The month with the highest number of snowfall days is January (15.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Granton, WI
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 3h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
Granton, WI
- Average sunshine days in December: 15.6 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is May (12 days).
Average UV index in December
Granton, 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, February, November and December (UV index 1).
Average cloud cover in December
Granton, WI
- Average cloud cover in December: 70
The month with the most cloud cover is January (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in December
Granton, WI
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, September, October and November (6mi).
The months with the lowest visibility are January, February, March, July, August and December (5mi).
Granton, Wisconsin, USA
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