January weather forecastMilwaukee, WI
January
Weather in January
The year begins in Milwaukee, Wisconsin, with a distinct chill in the air. January is the coldest month, and also brings the highest chance of snow, with an average of 1.1" (28mm) of snowfall. The daylight hours are the fewest, leading to long, brisk nights. The persistent pressure of 30.09" (764mm) is indicative of the stable conditions usually appreciated by residents. The weather transitions smoothly into February, where slight changes in temperature and precipitation occur.Temperature
The month of January, characterized by an average high of 26.1°F (-3.3°C) and a low of 15.8°F (-9°C), is recognized as the coldest.Humidity
The most humid month in Milwaukee is January, with an average relative humidity of 85%.Rainfall
In Milwaukee, in January, during 1.8 rainfall days, 0.31" (8mm) of precipitation is typically accumulated. Throughout the year, there are 75.6 rainfall days, and 5.83" (148mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. The month with the most snowfall is January, when snow falls for 6.6 days and typically aggregates up to 1.1" (28mm) of snow.Ocean temperature
In Milwaukee, the average seawater temperature in January is 37.4°F (3°C).Note: In the realm of swimming, this is an immediate threat to life. Total loss of control over breathing happens instantly, complicating clear thought processes. The necessity of a specialized swimsuit to restrict thermal loss is paramount.
Daylight
The average length of the day in January is 9h and 26min.On the first day of the month, sunrise is at 7:22 am and sunset at 4:27 pm. On the last day of January, sunrise is at 7:07 am and sunset at 5:02 pm CST.
Sunshine
The month with the least sunshine is January, with an average of 3.5h of sunshine.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high daily UV index of 1 during January translates into the following directions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Milwaukee, WI
- Average high temperature in January: 26.1°F
The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in January: 15.8°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure in January
Milwaukee, WI
- Average pressure in January: 30.09"Hg
The months with the highest atmospheric pressure are January, February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in January
Milwaukee, WI
- Average wind speed in January: 11.4mph
The windiest month (with the highest average wind speed) is January (11.4mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in January
Milwaukee, WI
- Average humidity in January: 85%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (75%).
Average rainfall in January
Milwaukee, WI
- Average rainfall in January: 0.31"
The wettest month (with the highest rainfall) is July (0.75").
The driest months (with the least rainfall) are February and December (0.28").
Average rainfall days in January
Milwaukee, WI
- Average rainfall days in January: 1.8 days
The month with the highest number of rainy days is June (9.9 days).
The months with the least rainy days are January and February (1.8 days).
Average snowfall in January
Milwaukee, WI
- Average snowfall in January: 1.1"
The month with the highest snowfall is January (1.1").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in January
Milwaukee, WI
- Average snowfall days in January: 6.6 days
The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in January
Milwaukee, WI
- Average sea temperature in January: 37.5°F
The best month for swimming (with the highest average sea temperature) is August (71.9°F).
The coldest month (with the lowest average sea temperature) is February (36°F).
Average daylight in January /
Average sunshine in January
Milwaukee, WI
- Average daylight in January: 9h and 24min
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 January: 3h and 30min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in January
Milwaukee, WI
- Average sunshine days in January: 25.4 days
The month with the most sunshine days is January (25.4 days).
The month with the least sunshine days is June (17.3 days).
Average UV index in January
Milwaukee, WI
- Average UV index in January: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in January
Milwaukee, WI
- Average cloud cover in January: 63
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 28).
Average visibility in January
Milwaukee, WI
- Average visibility in January: 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).
