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 onset of December brings a clear temperature shift, with the average high-temperature decreasing from an icy 38.1°F (3.4°C) in November to a subzero cold 23.4°F (-4.8°C). Webster reports an average nighttime low-temperature of 13.1°F (-10.5°C) in December.Humidity
In December, the average relative humidity in Webster, Wisconsin, is 89%.Rainfall
In Webster, during December, the rain falls for 4.1 days and regularly aggregates up to 1.26" (32mm) of precipitation. Throughout the year, in Webster, there are 124.6 rainfall days, and 21.65" (550mm) of precipitation is accumulated.Snowfall
Months with snowfall in Webster, Wisconsin, are January through May, October through December. December is the month with the most snowfall in Webster. Snow falls for 14.1 days and accumulates 5.75" (146mm) of snow.Daylight
With an average of 8h and 42min of daylight, December has the shortest days of the year in Webster.On the first day of December in Webster, sunrise is at 7:31 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 4:34 pm CST.
Sunshine
In December, the average sunshine is 3.1h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: During December, 1 as the daily maximum UV index converts into the following advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. 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. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Frequently asked questions
How cold is December in Webster?
What is the average humidity in December in Webster?
How much does it rain in Webster in December?
What is the snowiest month in Webster?
How many days does it snow in December in Webster?
What is the month with the shortest days in Webster?
What is the average length of the day in December in Webster?
When is the sunrise / sunset in December in Webster?
How long on average sun shines in December in Webster?
What are the months with the lowest UV index in Webster?
What is the UV index reading in December in Webster?
Average temperature in December
Webster, WI
- Average high temperature in December: 23.4°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (18°F).
- Average low temperature in December: 13.1°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (4.8°F).
Average pressure in December
Webster, WI
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Webster, WI
- Average wind speed in December: 8.3mph
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 (6.7mph).
Average humidity in December
Webster, WI
- Average humidity in December: 89%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and May (74%).
Average rainfall in December
Webster, WI
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in December
Webster, WI
- Average rainfall days in December: 4.1 days
The month with the highest number of rainy days is June (16.7 days).
The month with the least rainy days is January (2.8 days).
Average snowfall in December
Webster, WI
- Average snowfall in December: 5.75"
The month with the highest snowfall is December (5.75").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Webster, WI
- Average snowfall days in December: 14.1 days
The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Webster, 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: 3h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in December
Webster, WI
- Average sunshine days in December: 15.4 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is June (10.1 days).
Average UV index in December
Webster, 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
Webster, 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 July (Cloud cover 32).
Average visibility in December
Webster, WI
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Webster, Wisconsin, USA
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