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
December shows a mild decline in the average high-temperature, falling from November's chilly 43.7°F (6.5°C) to a wintry 32.4°F (0.2°C). Hales Corners's nighttime average temperature in December drops marginally from the daytime highs, settling at a subzero cold 23.9°F (-4.5°C).Humidity
In Hales Corners, Wisconsin, the average relative humidity in December is 81%.Rainfall
December is the month with the least rainfall. Rain falls for 5.4 days and accumulates 0.79" (20mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In December, it is snowing for 9.3 days. Throughout December, 1.97" (50mm) of snow is accumulated. Throughout the year, in Hales Corners, there are 45.9 snowfall days, and 12.09" (307mm) of snow is accumulated.Daylight
December has the shortest days of the year in Hales Corners, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:04 am and sunset at 4:18 pm. On the last day of December, in Hales Corners, Wisconsin, sunrise is at 7:23 am and sunset at 4:27 pm CST.
Sunshine
In December, the average sunshine is 4h.UV index
January 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 vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In December, an average UV index of 1 transforms into the following instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Frequently asked questions
How cold is December in Hales Corners?
What is the average humidity in December in Hales Corners?
What is the driest month in Hales Corners?
How many days does it rain in December in Hales Corners?
How much does it snow in Hales Corners in December?
What is the month with the shortest days in Hales Corners?
What is the average length of the day in December in Hales Corners?
When are sunrise and sunset in December in Hales Corners?
How long on average sun shines in December in Hales Corners?
What are the months with the lowest UV index in Hales Corners?
What is the UV index intensity in December in Hales Corners?
Average temperature in December
Hales Corners, WI
- Average high temperature in December: 32.4°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in December: 23.9°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (16°F).
Average pressure in December
Hales Corners, WI
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Hales Corners, WI
- Average wind speed in December: 10.4mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in December
Hales Corners, WI
- Average humidity in December: 81%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Hales Corners, WI
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is July (2.6").
The driest month (with the least rainfall) is December (0.79").
Average rainfall days in December
Hales Corners, WI
- Average rainfall days in December: 5.4 days
The month with the highest number of rainy days is July (16.7 days).
The month with the least rainy days is February (3.2 days).
Average snowfall in December
Hales Corners, WI
- Average snowfall in December: 1.97"
The month with the highest snowfall is January (3.23").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Hales Corners, WI
- Average snowfall days in December: 9.3 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hales Corners, 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: 4h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Hales Corners, WI
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is November (18.2 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in December
Hales Corners, 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 and December (UV index 1).
Average cloud cover in December
Hales Corners, WI
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are July and August (Cloud cover 29).
Average visibility in December
Hales Corners, WI
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Hales Corners, Wisconsin, USA
Weather forecast for your location
2. Allow the app to use your location
