Brown Deer (WI) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Brown Deer.
Climate overview of Brown Deer
Temperatures in Brown Deer, Wisconsin, United States of America, vary greatly throughout the year. July is the hottest month at 28°C (82°F), while January is the coldest at -1°C (30°F).
The city receives around 932 mm (37 in) of rain/snowfall per year. It experiences warm summers and very cold winters. June is the wettest month and January the driest. Sunshine peaks in July, when the city sees around 10.6 hours of sunshine per day.
Brown Deer Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Brown Deer - and find the best time to visit.
Monthly Temperature in Brown Deer
The climate in Brown Deer is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a comfortable 28°C (82°F) in July to a very cold -1°C (30°F) in January.
Nighttime temperatures range from 17°C (63°F) in July to -10°C (14°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Brown Deer
Generally, Brown Deer receives mid-range precipitation levels, with 932 mm (37 in) annually. The seasons in Brown Deer bring significant changes in precipitation. The wettest month, June, receives high rainfall, with an average of 126 mm (5 in) of precipitation. This rainfall is distributed across 13 rainy days.
In contrast, the driest month, January, experiences much less snowfall, totaling 34 mm (1.3 in) over 10 snowy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Brown Deer Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Brown Deer
In Brown Deer, summer days are longer and more sunny, with daily sunshine hours peaking at 10.6 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 3.5 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Brown Deer by Month
The relative humidity is high throughout the year in Brown Deer.
The city experiences its highest humidity in December, reaching 76%. In April, the humidity drops to its lowest level at 68%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Brown Deer
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, July, August and September
- Warmest weather: July and August
- Most sunshine: June and July
- Seasonal pattern: Warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -10°C (14°F).
Frequently asked questions about the climate in Brown Deer
What is the best time to visit Brown Deer?
May, July, August and September typically offer the most optimal weather in Brown Deer. In contrast, January, February, March, April, November and December tend to have less optimal conditions. Brown Deer has warm summers and very cold winters.
What temperatures can I expect in Brown Deer?
Daytime highs range from -1°C (30°F) in January to 28°C (82°F) in July. Nighttime lows range from -10°C (14°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Brown Deer get?
Annual rainfall is around 932 mm (37 in). June is the wettest month with 126 mm (5 in), while January is the driest with 34 mm (1.3 in).
How sunny is Brown Deer?
Brown Deer receives around 2,486 hours of sunshine per year. July is the sunniest month with 319 hours, while December is the cloudiest with just 104 hours. Overall, Brown Deer enjoys abundant sunshine.
Brown Deer 3-Day Forecast
Brown Deer on the map
Brown Deer is highlighted - select any city to see its climate.
Popular this month
Where to go in August - average daytime high across popular destinations.
Kissimmee
33°C (91°F) Orlando33°C (91°F) Miami Beach32°C (90°F) Destin32°C (90°F) New York City
29°C (84°F) Big Bear Lake
27°C (81°F) Los Angeles
24°C (75°F) San Francisco22°C (72°F) 
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
The 10 most alternative cities in the United States
Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes
A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States
Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.