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 beginning of December marks a decrease in the average high-temperature, transitioning from an icy 37.6°F (3.1°C) in November to a freezing cold 24.1°F (-4.4°C). Throughout December, the temperature falls to an average low of 14°F (-10°C).Humidity
The average relative humidity in December in Dorchester is 90%.Rainfall
In December, in Dorchester, the rain falls for 3.1 days. Throughout December, 0.55" (14mm) of precipitation is accumulated. In Dorchester, during the entire year, the rain falls for 102.5 days and collects up to 11.18" (284mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Dorchester, during December, snow falls for 12.5 days and regularly aggregates up to 2.01" (51mm) of snow. Throughout the year, there are 58.8 snowfall days, and 10.83" (275mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:20 am and sunset at 4:21 pm. On the last day of December, in Dorchester, sunrise is at 7:39 am and sunset at 4:29 pm CST.
Sunshine
In December, the average sunshine in Dorchester is 2.8h.UV index
The months with the lowest UV index in Dorchester are January, February, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: In December, the average maximum UV index of 1 translates into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Dorchester in December?
What is the average humidity in December in Dorchester?
How much does it rain in Dorchester in December?
How much does it snow in Dorchester in December?
What is the month with the shortest days in Dorchester?
What is the average length of the day in December in Dorchester?
When are sunrise and sunset in December in Dorchester?
How long on average sun shines in December in Dorchester?
What are the months with the lowest UV index in Dorchester?
What is the UV index intensity in December in Dorchester?
Average temperature in December
Dorchester, WI
- Average high temperature in December: 24.1°F
The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (18.9°F).
- Average low temperature in December: 14°F
The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (6.4°F).
Average pressure in December
Dorchester, 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 (29.9"Hg).
Average wind speed in December
Dorchester, WI
- Average wind speed in December: 9.1mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in December
Dorchester, WI
- Average humidity in December: 90%
The months with the highest relative humidity are January and February (92%).
The months with the lowest relative humidity are April and May (78%).
Average rainfall in December
Dorchester, WI
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is June (1.61").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in December
Dorchester, WI
- Average rainfall days in December: 3.1 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (1.5 days).
Average snowfall in December
Dorchester, WI
- Average snowfall in December: 2.01"
The month with the highest snowfall is February (2.52").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Dorchester, WI
- Average snowfall days in December: 12.5 days
The month with the highest number of snowfall days is January (13.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Dorchester, 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 36min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in December
Dorchester, WI
- Average sunshine days in December: 18.1 days
The month with the most sunshine days is January (20.1 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in December
Dorchester, 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
Dorchester, WI
- Average cloud cover in December: 72
The month with the most cloud cover is January (Cloud cover 74).
The months with the least cloud cover are July and August (Cloud cover 37).
Average visibility in December
Dorchester, WI
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, March, July, August, September and December (5mi).
Dorchester, Wisconsin, USA
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