December weather forecastShamrock, WI
December
Weather in December
December, the first month of the winter in Shamrock, is also a subzero cold month, with an average temperature ranging between max 26.4°F (-3.1°C) and min 15.4°F (-9.2°C).Temperature
The move into December indicates a reduction in the average high-temperature, down from November's wintry 40.6°F (4.8°C) to a subzero cold 26.4°F (-3.1°C). During December, Shamrock's temperature averages to 15.4°F (-9.2°C) at night.Humidity
The average relative humidity in December is 88%.Rainfall
In Shamrock, Wisconsin, during December, the rain falls for 4 days and regularly aggregates up to 0.79" (20mm) of precipitation. In Shamrock, during the entire year, the rain falls for 120.8 days and collects up to 16.34" (415mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Shamrock. In Shamrock, Wisconsin, in December, snow falls for 13.4 days, with typically accumulated 2.83" (72mm) of snow. In Shamrock, during the entire year, snow falls for 62.1 days and aggregates up to 13.11" (333mm) of snow.Daylight
December has the shortest days of the year in Shamrock, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 7:19 am and sunset at 4:25 pm. On the last day of December, sunrise is at 7:38 am and sunset at 4:34 pm CST.
Sunshine
In December, the average sunshine in Shamrock is 3.2h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 1 during December leads to these advisories:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Shamrock, WI
- Average high temperature in December: 26.4°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (20.7°F).
- Average low temperature in December: 15.4°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 (7.3°F).
Average pressure in December
Shamrock, 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 (29.89"Hg).
Average wind speed in December
Shamrock, WI
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in December
Shamrock, WI
- Average humidity in December: 88%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Shamrock, WI
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is June (2.91").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in December
Shamrock, WI
- Average rainfall days in December: 4 days
The month with the highest number of rainy days is June (17.1 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in December
Shamrock, WI
- Average snowfall in December: 2.83"
The month with the highest snowfall is February (2.99").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Shamrock, WI
- Average snowfall days in December: 13.4 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Shamrock, WI
- Average daylight in December: 8h and 54min
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 12min
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 0min).
Average sunshine days in December
Shamrock, WI
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in December
Shamrock, 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, February, November and December (UV index 1).
Average cloud cover in December
Shamrock, WI
- Average cloud cover in December: 67
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Shamrock, 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).
