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
As December commences, the average high-temperature shows a reduction, transitioning from a chilly 42.8°F (6°C) in November to a freezing cold 30.7°F (-0.7°C). In December, Monticello experiences an average nighttime temperature of 20.8°F (-6.2°C).Humidity
In Monticello, the average relative humidity in December is 84%.Rainfall
In December, the rain falls for 5.8 days. Throughout December, 0.71" (18mm) of precipitation is accumulated. Throughout the year, there are 124.7 rainfall days, and 15.16" (385mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Monticello, Wisconsin. In December, it is snowing for 9.4 days. Throughout December, 1.34" (34mm) of snow is accumulated. Throughout the year, there are 48 snowfall days, and 10.43" (265mm) of snow is accumulated.Daylight
The month with the shortest days in Monticello is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:09 am and sunset at 4:25 pm. On the last day of December, sunrise is at 7:28 am and sunset at 4:34 pm CST.
Sunshine
In Monticello, the average sunshine in December is 3.9h.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 1 in December translates into this advice:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Tightly woven clothing, when worn loosely, shields effectively against the Sun. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Frequently asked questions
How cold is December in Monticello?
What is the average humidity in December in Monticello?
How many days does it rain in December in Monticello?
How much does it snow in Monticello in December?
What is the month with the shortest days in Monticello?
How many hours of daylight does Monticello have in December?
What time are sunrise and sunset in December in Monticello?
How long on average sun shines in December in Monticello?
When is the lowest UV index in Monticello?
What is the UV index intensity in December in Monticello?
Average temperature in December
Monticello, WI
- Average high temperature in December: 30.7°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (24.4°F).
- Average low temperature in December: 20.8°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in December
Monticello, WI
- Average pressure in December: 30.09"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Monticello, WI
- Average wind speed in December: 9.5mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in December
Monticello, WI
- Average humidity in December: 84%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in December
Monticello, WI
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in December
Monticello, WI
- Average rainfall days in December: 5.8 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (3.5 days).
Average snowfall in December
Monticello, WI
- Average snowfall in December: 1.34"
The months with the highest snowfall are January and February (2.52").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Monticello, WI
- Average snowfall days in December: 9.4 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Monticello, 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 5min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in December
Monticello, WI
- Average sunshine days in December: 18.6 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in December
Monticello, WI
- Average UV index in December: 1
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Monticello, WI
- Average cloud cover in December: 61
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 34).
Average visibility in December
Monticello, WI
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, July, August and September (5mi).
Monticello, Wisconsin, USA
Weather forecast for your location
2. Allow the app to use your location
