Oshkosh, WI weather and climate in 2025
Day
27 °C
Night
16 °C
Sea
17 °C
Precipitation
94 mm
in month
Rainy days
10 days
in month
Daylight
15 hours
average
Sunshine
10 hours
average
Humidity
71 %
Day
27 °C
Night
16 °C
Sea
17 °C
Precipitation
94 mm
in month
Rainy days
10 days
in month
Daylight
15 hours
average
Sunshine
10 hours
average
Humidity
71 %
Overview: Oshkosh, WI
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Weather overview for Oshkosh, WI
Weather overview
Experience distinct seasons in Oshkosh, WI, with diverse weather patterns that make it unique. Revel in sunny summer days as temperatures soar to delightful highs, and witness a winter wonderland with crisp, frosty mornings. Spring and fall are transitional, featuring everything from blooming flowers to colorful foliage. Satisfy your curiosity about Oshkosh's climate that varies from freezing to warm, often sprinkled with rainfall, ensuring a rich, green landscape. The weather here offers a variety of experiences throughout the year, perfect for those who appreciate seasonal changes.
January weather
January in Oshkosh greets residents with chilly winter temperatures, where daytime highs average at a frosty -1 °C (30 °F). Snow is a common sight with the ground often blanketed in white. The year starts with shorter sunny days, providing about 4 hours of sunshine. As for precipitation, expect around 39 mm (1.54 in) this month.
February weather
As February arrives, Oshkosh remains firmly within winter's grasp, showing slight increases in daily high temperatures to an average of -1 °C (31 °F). This period continues to see winter precipitation with 27 mm (1.07 in) of rainfall equivalent, including snow, across 7.
March weather
March sees the dawn of spring in Oshkosh, with temperatures slowly climbing to a daytime average of 5 °C (41 °F). Wet days are still frequent, counting up to 9, but the snow gradually gives way to rain as the season transitions. Residents can enjoy 6 hours of sunshine on average.
April weather
April heralds a more noticeable spring in Oshkosh, with a significant rise in temperatures reaching average highs of 13 °C (56 °F). The showers of April are true to form, contributing to 74 mm (2.92 in) of precipitation over 11.
May weather
May in Oshkosh brings warmer weather with temperatures averaging 20 °C (68 °F) during the day, perfect for outdoor activities. As the humidity levels start to rise to 66 %, residents can expect 84 mm (3.30 in) of rainfall spread over 11.
June weather
June ushers in summer with Oshkosh enjoying longer sunny days, around 10 hours, and warmer temperatures peaking at 25 °C (77 °F). The occasional storm might bring the monthly rainfall total up to 102 mm (4.00 in), making June one of the wetter months.
July weather
July marks the peak of summer in Oshkosh, showcasing the highest average daytime temperatures of about 27 °C (81 °F). It's also a time when the region experiences several sunny hours, reaching up to 10 hours per day, interspersed with occasional thunderstorms.
August weather
Oshkosh's August continues the trend of warm summer days with an average high of 26 °C (79 °F), mildly cooler than July. The humidity often peaks, averaging at 75 %, while sunny hours decrease slightly to around 9 hours.
September weather
September in Oshkosh is the beginning of the transition to autumn. The temperatures start to mellow, with daily highs averaging at 22 °C (72 °F). While the daylight gradually reduces, there's still an appreciable 7 hours of sunshine on average per day.
October weather
As October arrives in Oshkosh, the chill of fall is unmistakable with daytime highs averaging 15 °C (59 °F). You can expect the weather to be variable, with rainfall reaching up to 66 mm (2.58 in) across 10.
November weather
November's weather in Oshkosh ushers in the impending winter, with average highs dropping to 7 °C (44 °F). The sunshine hours reduce further to about 4 hours, and you can expect 58 mm (2.29 in) of precipitation over the course of the month.
December weather
December in Oshkosh is firmly within the grips of winter, with average daily temperatures barely reaching -1 °C (30 °F). The wintry mix of precipitation includes snow, contributing to the month’s 39 mm (1.54 in). Expect shorter days with about 5 hours of sunshine.
FAQs
How cold can it get at night in Oshkosh during January?
January nights can be quite cold in Oshkosh, with average low temperatures dipping to about -12 °C (10 °F).
Does Oshkosh get a lot of snow in February?
February in Oshkosh is another snowy month, as the city receives a fair amount of winter precipitation, though slightly less than January.
What is the average rainfall in Oshkosh during March?
March in Oshkosh can be quite wet, with an average rainfall of 47 mm (1.85 in) marking the gradual change from snow to rain.
Is April a rainy month in Oshkosh?
Indeed, April is characterized by frequent showers in Oshkosh, with a substantial amount of rainfall contributing to the growth of spring flora.
What's the average nighttime temperature in Oshkosh in May?
The average nighttime temperature in May is a mild 8 °C (47 °F), leading to pleasant evenings in Oshkosh.
How does the weather feel in Oshkosh during June?
June in Oshkosh feels comfortably warm with high humidity at 69 %, leading to a lush and vibrant environment, while the warmth encourages outdoor living.
What can I expect in terms of temperature and precipitation for Oshkosh in July?
Expect warm and sunny days in July, with temperatures reaching an average high of 27 °C (81 °F), while precipitation levels are significant, nearing 94 mm (3.69 in).
Are August days in Oshkosh hot and humid?
August days in Oshkosh are indeed hot and can feel quite humid, promising warm afternoons with ample sunshine.
Does September in Oshkosh see a lot of rain?
September does see a fair amount of rainfall with an average precipitation of 87 mm (3.42 in), over 10 of the month.
What does an average October day feel like in Oshkosh?
An average October day in Oshkosh feels cool and crisp as the leaves change color, with temperatures conducive to wearing light jackets and enjoying the autumn atmosphere.
How soon does it get cold in Oshkosh?
The cold sets in fairly quickly in Oshkosh as November progresses, with temperatures taking a noticeable dip and the first frosts appearing.
What's the likelihood of a white Christmas in Oshkosh?
With a white Christmas being quite common in Oshkosh, thanks to the frequent snowfall during this festive period, residents often look forward to a snowy holiday season.
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