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
Johnson Creek, Wisconsin, experiences a temperature shift at the start of December, with average high-temperatures adjusting from a wintry 42.6°F (5.9°C) in November to a freezing cold 30.2°F (-1°C). In December, the nighttime temperature in Johnson Creek, Wisconsin, lowers to an average of 19.9°F (-6.7°C).Humidity
In Johnson Creek, the average relative humidity in December is 85%.Rainfall
The months with the least rainfall in Johnson Creek are February and December Rain falls for 5.7 days and accumulates 0.47" (12mm) of rain.Snowfall
Months with snowfall are January through May, October through December. In Johnson Creek, in December, during 9.8 snowfall days, 0.79" (20mm) of snow is typically accumulated. In Johnson Creek, during the entire year, snow falls for 45 days and aggregates up to 5.51" (140mm) of snow.Daylight
With an average of 9h and 6min of daylight, December has the shortest days of the year in Johnson Creek.On the first day of December in Johnson Creek, 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
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Johnson Creek. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In December, a regular UV index of 1 translates into these guidelines:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Beware! Reflection from snow can magnify 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 December in Johnson Creek?
What is the average humidity in December in Johnson Creek?
What is the driest month in Johnson Creek?
How many days does it rain in December in Johnson Creek?
How many days does it snow in December in Johnson Creek?
What is the month with the shortest days in Johnson Creek?
How many hours of daylight does Johnson Creek have in December?
When are sunrise and sunset in December in Johnson Creek?
How many hours of sunshine does Johnson Creek have in December?
What is the month with the lowest UV index in Johnson Creek?
What is the UV index intensity in December in Johnson Creek?
Average temperature in December
Johnson Creek, WI
- Average high temperature in December: 30.2°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 (23.7°F).
- Average low temperature in December: 19.9°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in December
Johnson Creek, WI
- Average pressure in December: 30.09"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Johnson Creek, WI
- Average wind speed in December: 9.2mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in December
Johnson Creek, WI
- Average humidity in December: 85%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Johnson Creek, WI
- Average rainfall in December: 0.47"
The wettest month (with the highest rainfall) is July (1.54").
The driest months (with the least rainfall) are February and December (0.47").
Average rainfall days in December
Johnson Creek, WI
- Average rainfall days in December: 5.7 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is February (3 days).
Average snowfall in December
Johnson Creek, WI
- Average snowfall in December: 0.79"
The month with the highest snowfall is January (1.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Johnson Creek, WI
- Average snowfall days in December: 9.8 days
The month with the highest number of snowfall days is January (12.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Johnson Creek, 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 54min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in December
Johnson Creek, WI
- Average sunshine days in December: 18.4 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in December
Johnson Creek, 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, November and December (UV index 1).
Average cloud cover in December
Johnson Creek, WI
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July, August and September (Cloud cover 34).
Average visibility in December
Johnson Creek, WI
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Johnson Creek, Wisconsin, USA
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