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
Witnessing a clear downswing, the average high-temperature during December drops from November's icy 37.9°F (3.3°C) to a freezing cold 23.2°F (-4.9°C). Milltown's December nights cool down to an average low-temperature of 12.7°F (-10.7°C).Humidity
In December, the average relative humidity in Milltown is 90%.Rainfall
In Milltown, in December, it is raining for 3.3 days, with typically 1.34" (34mm) of accumulated precipitation. Throughout the year, there are 120.4 rainfall days, and 22.52" (572mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 14.2 days and typically aggregates up to 6.26" (159mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:30 am and sunset at 4:28 pm. On the last day of December, in Milltown, sunrise is at 7:50 am and sunset at 4:36 pm CST.
Sunshine
In Milltown, the average sunshine in December is 2.8h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the maximum UV index of 1 translates into these guidelines:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Always opt for UVA and UVB-resistant sunglasses on radiant days. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Milltown?
What is the average humidity in December in Milltown?
How much does it rain in Milltown in December?
What is the snowiest month in Milltown?
How much does it snow in Milltown in December?
What is the month with the shortest days in Milltown?
What is the average length of the day in December in Milltown?
When is the sunrise / sunset in December in Milltown?
How long on average sun shines in December in Milltown?
When is the lowest UV index in Milltown?
What is the UV index intensity in December in Milltown?
Average temperature in December
Milltown, WI
- Average high temperature in December: 23.2°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (17.6°F).
- Average low temperature in December: 12.7°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (4.5°F).
Average pressure in December
Milltown, WI
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Milltown, WI
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is April (9.7mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).
Average humidity in December
Milltown, WI
- Average humidity in December: 90%
The month with the highest relative humidity is January (92%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Milltown, WI
- Average rainfall in December: 1.34"
The wettest month (with the highest rainfall) is June (3.54").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in December
Milltown, WI
- Average rainfall days in December: 3.3 days
The month with the highest number of rainy days is June (16.7 days).
The month with the least rainy days is January (2 days).
Average snowfall in December
Milltown, WI
- Average snowfall in December: 6.26"
The month with the highest snowfall is December (6.26").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Milltown, WI
- Average snowfall days in December: 14.2 days
The month with the highest number of snowfall days is January (16 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Milltown, 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 5min
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 36min).
Average sunshine days in December
Milltown, WI
- Average sunshine days in December: 15 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in December
Milltown, WI
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Milltown, WI
- Average cloud cover in December: 70
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 35).
Average visibility in December
Milltown, WI
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Milltown, Wisconsin, USA
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