Wauwatosa (WI) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Wauwatosa.
Climate overview of Wauwatosa
Wauwatosa, Wisconsin, United States of America, sees big temperature differences between seasons, with July peaking at 28°C (82°F) and January dropping to -1°C (30°F).
Annual rain/snowfall is moderate at around 961 mm (38 in), with June being the wettest month. The city also has warm summers and very cold winters. The most sunshine falls in July, with an average of 10.6 hours of daily sunshine.
Wauwatosa Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Wauwatosa - and find the best time to visit.
Monthly Temperature in Wauwatosa
Visitors to Wauwatosa can expect significant temperature changes throughout the year. Average daytime temperatures reach a comfortable 28°C (82°F) in July. In January, the coolest month of the year, temperatures drop to a very cold -1°C (30°F).
At night, temperatures range from around 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 Wauwatosa
Generally, Wauwatosa experiences moderate precipitation patterns, averaging 961 mm (38 in) yearly. Wauwatosa can be quite wet during June, receiving approximately 139 mm (5.5 in) of precipitation over 12 rainy days.
In contrast, during the driest month (January), you will experience much drier conditions, with 34 mm (1.3 in) of precipitation spread across 10 snowy days. For more details, please visit our Wauwatosa 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 Wauwatosa
Wauwatosa can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 10.6 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 3.5 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Wauwatosa by Month
The relative humidity is high throughout the year in Wauwatosa.
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 Wauwatosa
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 Wauwatosa
What is the best time to visit Wauwatosa?
May, July, August and September typically offer the most optimal weather in Wauwatosa. In contrast, January, February, March, April, November and December tend to have less optimal conditions. Wauwatosa has warm summers and very cold winters.
What temperatures can I expect in Wauwatosa?
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 Wauwatosa get?
Annual rainfall is around 961 mm (38 in). June is the wettest month with 139 mm (5.5 in), while January is the driest with 34 mm (1.3 in).
How sunny is Wauwatosa?
Wauwatosa 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, Wauwatosa enjoys abundant sunshine.
Wauwatosa 3-Day Forecast
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