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
During the transition into December, Winona observes a decrease in the average high-temperature, falling from an icy 37.8°F (3.2°C) in November to a subzero cold 27.5°F (-2.5°C). Winona registers an average low-temperature of 21°F (-6.1°C) throughout December, a modest decrease from its daytime highs.Humidity
In Winona, the average relative humidity in December is 85%.Rainfall
In Winona, in December, during 6.1 rainfall days, 1.81" (46mm) of precipitation is typically accumulated. Throughout the year, in Winona, there are 122.6 rainfall days, and 22.56" (573mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. December is the month with the most snowfall in Winona, Michigan. Snow falls for 20.5 days and accumulates 6.65" (169mm) of snow.Daylight
With an average of 8h and 36min of daylight, December has the shortest days of the year in Winona, Michigan.On the first day of December, sunrise is at 8:20 am and sunset at 5:08 pm. On the last day of the month, sunrise is at 8:40 am and sunset at 5:17 pm EST.
Sunshine
In Winona, the average sunshine in December is 2h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In December, a daily UV index of 1 turns into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Winona in December?
What is the average humidity in December in Winona?
How many days does it rain in December in Winona?
When does it snow the most in Winona?
How much does it snow in Winona in December?
What is the month with the shortest days in Winona?
What is the average length of the day in December in Winona?
When are sunrise and sunset in December in Winona?
How many hours of sunshine does Winona have in December?
When is the lowest UV index in Winona?
What is the UV index reading in December in Winona?
Average temperature in December
Winona, MI
- Average high temperature in December: 27.5°F
The warmest month (with the highest average high temperature) is August (69.4°F).
The month with the lowest average high temperature is January (22.3°F).
- Average low temperature in December: 21°F
The month with the highest average low temperature is August (58.1°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in December
Winona, MI
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Winona, MI
- Average wind speed in December: 12.5mph
The windiest month (with the highest average wind speed) is January (12.6mph).
The calmest month (with the lowest average wind speed) is June (7.6mph).
Average humidity in December
Winona, MI
- Average humidity in December: 85%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is May (75%).
Average rainfall in December
Winona, MI
- Average rainfall in December: 1.81"
The wettest months (with the highest rainfall) are April, June, August and October (2.28").
The driest month (with the least rainfall) is February (1.22").
Average rainfall days in December
Winona, MI
- Average rainfall days in December: 6.1 days
The month with the highest number of rainy days is October (14.6 days).
The month with the least rainy days is February (2.5 days).
Average snowfall in December
Winona, MI
- Average snowfall in December: 6.65"
The month with the highest snowfall is December (6.65").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Winona, MI
- Average snowfall days in December: 20.5 days
The month with the highest number of snowfall days is January (22.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Winona, MI
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 2h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 1h and 36min).
Average sunshine days in December
Winona, MI
- Average sunshine days in December: 6.5 days
The month with the most sunshine days is July (15.5 days).
The month with the least sunshine days is January (5.6 days).
Average UV index in December
Winona, MI
- Average UV index in December: 1
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Winona, MI
- Average cloud cover in December: 80
The month with the most cloud cover is January (Cloud cover 84).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in December
Winona, MI
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, November and December (5mi).
Winona, Michigan, USA
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