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 arrival of December corresponds with a reduction in the average high-temperature, down from November's icy 36°F (2.2°C) to a freezing cold 24.1°F (-4.4°C). Sayner documents a consistent average low-temperature of 15.1°F (-9.4°C) at night during December.Humidity
In December, the average relative humidity is 90%.Rainfall
In Sayner, in December, during 5.3 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. Throughout the year, in Sayner, there are 128.5 rainfall days, and 24.76" (629mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. December is the month with the most snowfall. Snow falls for 23.8 days and accumulates 11.18" (284mm) of snow.Daylight
With an average of 8h and 42min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:20 am and sunset at 4:14 pm. On the last day of December, sunrise is at 7:39 am and sunset at 4:23 pm CST.
Sunshine
In December, the average sunshine is 2.2h.UV index
January, March, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How much does it rain in December?
When does it snow the most?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Sayner have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Sayner have in December?
When is the lowest UV index?
How high is the UV index in December?
Average temperature in December
Sayner, WI
- Average high temperature in December: 24.1°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (18.5°F).
- Average low temperature in December: 15.1°F
The month with the highest average low temperature is July (56.3°F).
The coldest month (with the lowest average low temperature) is January (7.9°F).
Average pressure in December
Sayner, WI
- Average pressure in December: 30.06"Hg
The months with the highest atmospheric pressure are February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Sayner, WI
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is November (8.7mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in December
Sayner, WI
- Average humidity in December: 90%
The months with the highest relative humidity are January and February (92%).
The month with the lowest relative humidity is May (71%).
Average rainfall in December
Sayner, WI
- Average rainfall in December: 1.77"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is January (1.38").
Average rainfall days in December
Sayner, WI
- Average rainfall days in December: 5.3 days
The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in December
Sayner, WI
- Average snowfall in December: 11.18"
The month with the highest snowfall is December (11.18").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Sayner, WI
- Average snowfall days in December: 23.8 days
The month with the highest number of snowfall days is January (26.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Sayner, WI
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 2h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 1h and 54min).
Average sunshine days in December
Sayner, WI
- Average sunshine days in December: 6.5 days
The month with the most sunshine days is September (13.4 days).
The month with the least sunshine days is January (5 days).
Average UV index in December
Sayner, 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, March, November and December (UV index 1).
Average cloud cover in December
Sayner, WI
- Average cloud cover in December: 79
The month with the most cloud cover is January (Cloud cover 83).
The month with the least cloud cover is July (Cloud cover 37).
Average visibility in December
Sayner, WI
- Average visibility in December: 4mi
The months with the highest visibility are May, June and July (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
Sayner, Wisconsin, USA
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