December weather forecastTomah, WI
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Tomah, Wisconsin, with an average temperature fluctuating between 16.7°F (-8.5°C) and 27.3°F (-2.6°C).Temperature
As November transitions into December, Tomah sees a drop in the average high-temperature, transitioning from a wintry 41°F (5°C) to a subzero cold 27.3°F (-2.6°C). Tomah experiences an average nighttime temperature of 16.7°F (-8.5°C) in the month of December.Humidity
In Tomah, the average relative humidity in December is 87%.Rainfall
In Tomah, during December, the rain falls for 3.5 days and regularly aggregates up to 0.94" (24mm) of precipitation. Throughout the year, there are 112.6 rainfall days, and 18.11" (460mm) of precipitation is accumulated.Snowfall
Months with snowfall in Tomah are January through May, October through December. In Tomah, in December, during 12.2 snowfall days, 3.23" (82mm) of snow is typically accumulated. In Tomah, during the entire year, snow falls for 58.3 days and aggregates up to 16.02" (407mm) of snow.Daylight
The month with the shortest days in Tomah is December, with an average of 9h and 0min of daylight.On the first day of December in Tomah, sunrise is at 7:17 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:36 am and sunset at 4:34 pm CST.
Sunshine
The average sunshine in December in Tomah, Wisconsin, is 3.2h.UV index
The months with the lowest UV index in Tomah are January, February, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 1 suggests these recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Tomah, WI
- Average high temperature in December: 27.3°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (21.4°F).
- Average low temperature in December: 16.7°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 (8.2°F).
Average pressure in December
Tomah, WI
- Average pressure in December: 30.1"Hg
The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Tomah, WI
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in December
Tomah, WI
- Average humidity in December: 87%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Tomah, WI
- Average rainfall in December: 0.94"
The wettest month (with the highest rainfall) is June (2.91").
The driest months (with the least rainfall) are January and February (0.67").
Average rainfall days in December
Tomah, WI
- Average rainfall days in December: 3.5 days
The month with the highest number of rainy days is June (15.3 days).
The month with the least rainy days is February (2.1 days).
Average snowfall in December
Tomah, WI
- Average snowfall in December: 3.23"
The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Tomah, WI
- Average snowfall days in December: 12.2 days
The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Tomah, WI
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 3h and 12min
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 48min).
Average sunshine days in December
Tomah, WI
- Average sunshine days in December: 17.6 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in December
Tomah, 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
Tomah, WI
- Average cloud cover in December: 68
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Tomah, WI
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).
