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 decrease of average high-temperatures is mild in December, with a decline from a frosty 43.7°F (6.5°C) in November to a subzero cold 31.1°F (-0.5°C). Helenville temperatures generally rest at a low of 20.7°F (-6.3°C) during the December nights.Humidity
The average relative humidity in December is 84%.Rainfall
In Helenville, during December, the rain falls for 6.9 days and regularly aggregates up to 1.5" (38mm) of precipitation. In Helenville, during the entire year, the rain falls for 149.4 days and collects up to 28.82" (732mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Helenville, in December, during 12.6 snowfall days, 3.94" (100mm) of snow is typically accumulated. Throughout the year, there are 58 snowfall days, and 21.85" (555mm) of snow is accumulated.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:07 am and sunset at 4:21 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:30 pm CST.
Sunshine
The average sunshine in December is 3.8h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum daily UV index of 1 during December translates into the following directions:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
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?
How much does it snow in Helenville in December?
What is the month with the shortest days in Helenville?
How many hours of daylight does Helenville have in December?
When are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Helenville, WI
- Average high temperature in December: 31.1°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (24.3°F).
- Average low temperature in December: 20.7°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (12°F).
Average pressure in December
Helenville, WI
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Helenville, WI
- Average wind speed in December: 9.1mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in December
Helenville, WI
- Average humidity in December: 84%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Helenville, WI
- Average rainfall in December: 1.5"
The wettest month (with the highest rainfall) is June (3.78").
The driest months (with the least rainfall) are January and February (1.42").
Average rainfall days in December
Helenville, WI
- Average rainfall days in December: 6.9 days
The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is February (5 days).
Average snowfall in December
Helenville, WI
- Average snowfall in December: 3.94"
The month with the highest snowfall is February (5.39").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Helenville, WI
- Average snowfall days in December: 12.6 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
Helenville, WI
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 3h and 5min
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 24min).
Average sunshine days in December
Helenville, WI
- Average sunshine days in December: 14.3 days
The month with the most sunshine days is November (16.1 days).
The months with the least sunshine days are May and June (9.8 days).
Average UV index in December
Helenville, WI
- Average UV index in December: 1
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Helenville, WI
- Average cloud cover in December: 61
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in December
Helenville, WI
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, July, August, September and December (5mi).
Helenville, Wisconsin, USA
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