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
In Greenleaf, the beginning of December is marked by a lowered average high-temperature, shifting from November's cold 41.7°F (5.4°C) to a freezing cold 28.9°F (-1.7°C). In the month of December, Greenleaf's average low-temperature falls to a still subzero cold 19.2°F (-7.1°C).Humidity
In Greenleaf, Wisconsin, the average relative humidity in December is 85%.Rainfall
In Greenleaf, during December, the rain falls for 6.3 days and regularly aggregates up to 1.5" (38mm) of precipitation. Throughout the year, in Greenleaf, there are 132.7 rainfall days, and 24.33" (618mm) of precipitation is accumulated.Snowfall
Months with snowfall in Greenleaf are January through April, October through December. The month with the most snowfall is December, when snow falls for 10.3 days and typically aggregates up to 4.09" (104mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 54min of daylight.On the first day of December, sunrise is at 7:08 am and sunset at 4:14 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:23 pm CST.
Sunshine
In December, the average sunshine in Greenleaf is 3.8h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: A typical high UV index of 1 in December suggests the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Stay sun-safe with clothing that is both closely woven and worn loosely. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Frequently asked questions
How cold is it in Greenleaf in December?
What is the average humidity in December in Greenleaf?
How much does it rain in Greenleaf in December?
What is the snowiest month in Greenleaf?
How much does it snow in Greenleaf in December?
What is the month with the shortest days in Greenleaf?
How many hours of daylight does Greenleaf have in December?
When is the sunrise / sunset in December in Greenleaf?
How many hours of sunshine does Greenleaf have in December?
When is the lowest UV index in Greenleaf?
How high is the UV index in December in Greenleaf?
Average temperature in December
Greenleaf, WI
- Average high temperature in December: 28.9°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in December: 19.2°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (11.8°F).
Average pressure in December
Greenleaf, WI
- Average pressure in December: 30.07"Hg
The months with the highest atmospheric pressure are February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Greenleaf, WI
- Average wind speed in December: 9.9mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in December
Greenleaf, WI
- Average humidity in December: 85%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Greenleaf, WI
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is May (3.46").
The driest month (with the least rainfall) is January (0.98").
Average rainfall days in December
Greenleaf, WI
- Average rainfall days in December: 6.3 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (3.7 days).
Average snowfall in December
Greenleaf, WI
- Average snowfall in December: 4.09"
The month with the highest snowfall is December (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Greenleaf, WI
- Average snowfall days in December: 10.3 days
The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Greenleaf, 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 5min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are January and February (Average sunshine: 3h and 30min).
Average sunshine days in December
Greenleaf, WI
- Average sunshine days in December: 17.4 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (10.7 days).
Average UV index in December
Greenleaf, 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, November and December (UV index 1).
Average cloud cover in December
Greenleaf, WI
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Greenleaf, 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).
Greenleaf, Wisconsin, USA
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