Oshkosh (WI) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Oshkosh.
Climate overview of Oshkosh
Temperatures in Oshkosh, 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 -3°C (27°F).
With around 861 mm (34 in) of annual rain/snowfall, the city has moderate precipitation levels. June is the wettest month and February the driest. It also has a distinct dry season from January to February, with warm summers and very cold winters.
Oshkosh Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Oshkosh - and find the best time to visit.
Monthly Temperature in Oshkosh
The climate in Oshkosh is known for significant temperature differences throughout the year, making the weather dynamic. Typically, average maximum daytime temperatures range from a comfortable 28°C (82°F) in July to a very cold -3°C (27°F) in the coolest month, January.
Nights vary from 17°C (63°F) in July to around -12°C (10°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Oshkosh
Generally, Oshkosh receives mid-range precipitation levels, with 861 mm (34 in) annually. The climate in Oshkosh shows significant variation throughout the year. Expect high rainfall in June, the wettest month, with an average of 123 mm (4.8 in) of precipitation over 12 rainy days.
In contrast, the driest month February offers drier and sunnier days, with around 31 mm (1.2 in) of snowfall over 9 snowy days. For more details, please visit our Oshkosh Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Oshkosh
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
- Fewer rainy days: January, February, March, September and November
- Seasonal pattern: A distinct dry season from January to February, with warm summers and very cold winters
- Coldest conditions: January, with freezing nights around -12°C (10°F).
Frequently asked questions about the climate in Oshkosh
What is the best time to visit Oshkosh?
May, July, August and September typically offer the most optimal weather in Oshkosh. In contrast, January, February, March, November and December tend to have less optimal conditions. Oshkosh has a distinct dry season from January to February, with warm summers and very cold winters.
What temperatures can I expect in Oshkosh?
Daytime highs range from -3°C (27°F) in January to 28°C (82°F) in July. Nighttime lows range from -12°C (10°F) to 17°C (63°F). Temperatures vary considerably through the year.
How much rain does Oshkosh get?
Annual rainfall is around 861 mm (34 in). June is the wettest month with 123 mm (4.8 in), while February is the driest with 31 mm (1.2 in).
Oshkosh 3-Day Forecast
Oshkosh on the map
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