Climate and monthly weather forecastOshkosh, WI

Climate and monthly weather forecast
The climate of Oshkosh
Situated in the Northern Hemisphere, Oshkosh, Wisconsin, USA possesses a Humid continental climate, indicated by its Köppen climate classification of 'Dfb'. Under this classification, it's evident that Oshkosh experiences no dry season and hosts a warm summer. The geographical standing of the region enables it to hold diverse weather conditions varying between different seasons.Delving into the weather data provided, the average high temperatures in Oshkosh deviate substantially as the year progresses, oscillating between 22.5°F (-5.3°C) in January to a peak of 77°F (25°C) in July. Simultaneously, the lowest recorded temperatures see a shift from 10.8°F (-11.8°C) in January to 61.2°F (16.2°C) in July, highlighting the definite seasonality existing in this region.
Humidity is a persistent feature in Oshkosh, with relative humidity levels maintaining averages above 75% throughout the year, rising to a maximum of 88% in January and February. Rainfall too follows a seasonal trend, with the highest recorded average of 3.62" (92mm) falling in May, and the least amount of precipitation observed in February with an average of 1.02" (26mm). A peculiar aspect to note here would be the snowfall, which is characteristic of the winter months from November to April, with January witnessing an average of 4.76" (121mm).
It's also critical to acknowledge the varying daylight hours, which range from 9 hours in January and December to an extended 15.4 hours in June, the month of the summer solstice. This pattern closely aligns with the average sunshine hours, which reach their zenith at 10.1 hours in July.
The best time to visit Oshkosh
A consideration of seasonal and weather conditions suggests that the ideal time to visit Oshkosh is during the summer months from June to August. With average high temperatures remaining comfortably around the 70°F (21.1°C) mark, humidity hovering around 80%, and minimal rainfall, these months offer a pleasant environment to explore the region. Extended daylight hours, peaking at 15.4 hours in June, further complement the outdoor activities one might want to venture into.The worst time to visit Oshkosh
Considering the climatic conditions, the less favourable time to visit Oshkosh would be the winter months from December to February. With temperatures dropping to a chilling 28.6°F (-1.9°C) in December, roads can also become slippery due to the 4.76" (121mm) of average snowfall in January. Combined with a diminished average daylight of merely 9 hours, these winter months might not provide the most enjoyable travel experience.Spring weather in Oshkosh
Spring in Oshkosh, spanning March to May, witnesses a gradual warming trend. The average high temperatures start at 38.5°F (3.6°C) in March and reach 62.2°F (16.8°C) by May. Additionally, relative humidity levels drop from 82% in March to 79% by May. Rainfall peaks in this season with an average rainfall of 3.62" (92mm) in May, the highest in the year. However, the increased daylight hours ranging from 12 hours to 14.8 hours from March to May enhance the beauty of the season.Summer weather in Oshkosh
Following spring, the summer months of June to August are relatively warm with high temperatures floating around the 70s°F. July gets the highest temperature in Oshkosh, averaging at 77°F (25°C). This period also experiences reduced rainfall, with August having the lowest rainfall of 1.85" (47mm). With extended daylight hours, specifically, 15.4 hours in June, summers in Oshkosh are a treat to the visitors and locals alike.Autumn weather in Oshkosh
Autumn arrives in September and continues till November in Oshkosh. The highest temperature drops to 55.9°F (13.3°C) in November from 69.4°F (20.8°C) in September. A consistent average of around 78% relative humidity marks this season. The average daylight hours decrease from 12.5 hours in September to 9.6 hours in November, making this period an optimal time for witnessing fall foliage.Winter weather in Oshkosh
Winter in Oshkosh endures from December till February, with temperatures remaining generally low. The lowest recorded temperatures dip to a chilling 18.7°F (-7.4°C) in February. This period is associated with a high chance of snowfall, with January achieving an average of 4.76" (121mm). With daylight hours limited to approximately 9 hours, the winters in Oshkosh can prove to be quite frosty and cold.Weather in January
Cold temperatures define January in Oshkosh, Wisconsin, with winter at its peak. Most days are marked by frost due to the low temperatures. It should be noted that January has the most snowfall across the entire year, receiving 4.76" (121mm) of snow. Weather in January »Weather in February
February weather in Oshkosh is still characterized by winter, albeit less harsh than January. The temperature increases slightly, offering relief from the intense cold. Somewhat expectedly, February experiences a reduction in snowfall when compared to January, from 4.76" (121mm) to 3.98" (101mm). Weather in February »Weather in March
The month of March ushers in spring for Oshkosh. The cold winter chill starts to recede, making way for milder weather conditions. Compared to February, the average temperature and daylight hours in March both increase noticeably. Rainfall in March stands out, with 1.69" (43mm) received, marking the transition from snowfall to rain showers. Weather in March »Weather in April
April in Oshkosh sees a definitive move towards spring. The temperatures continue to rise, and the days continue to lengthen, providing more daytime. Significant rainfall in April, 2.64" (67mm), is an indication of the ongoing transition from winter to spring. Weather in April »Weather in May
May is when spring is fully underway in Oshkosh. The temperature climbs higher and the weather becomes milder compared to April. The increased temperatures in May, which rise to a high of 62.2°F (16.8°C), mark the approaching summer. Weather in May »Weather in June
The ambiance of summer becomes evident in June in Oshkosh, with warm temperatures the norm. It is a stark difference from the month of May as the hottest days of the year begin to show. The days in June are, on average, the longest of the year with 15.4 daylight hours. Weather in June »Weather in July
July is the peak of summer for Oshkosh. This month has the highest temperatures of the year and the days remain long. A notable weather pattern is the high temperatures, which rise to an average of 77°F (25°C). Weather conditions during this month are typically hot and humid. Weather in July »Weather in August
As the summer winds down, August in Oshkosh sees a slight decrease in temperature when compared to July. Despite the slight cooling, the weather remains predominantly hot. The average daylight in August starts decreasing noticeably. Weather in August »Weather in September
September brings the onset of autumn in Oshkosh. The weather starts becoming cooler with a significant reduction in humidity. The noticeable change in temperatures, dropping to a low of 52.3°F (11.3°C), signals the transition from summer to fall. Weather in September »Weather in October
October in Oshkosh is primarily characterized by fall weather. The temperatures continue to drop, making the weather increasingly cooler compared to September. The landscapes change dramatically during this month, displaying deep hues of autumn. Weather in October »Weather in November
November in Oshkosh poses a significant transition from fall to the early onset of winter. The temperatures drop drastically, and the landscapes begin to lose their fall colors. By the end of November, snowfall begins, setting the stage for the winter season. Weather in November »Weather in December
December in Oshkosh is marked by cold temperatures, short days, and frequent snowfall. It marks the shift from the mild autumn weather to full-blown winter. December sees a significant increase in snowfall, with 3.11" (79mm) of snow being the norm. Weather in December »Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Oshkosh, WI
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is January (22.5°F).
The month with the highest average low temperature is July (61.2°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).
Average pressure
Oshkosh, WI
- Average pressure in January:
30.09"Hg - Average pressure in February:
30.09"Hg - Average pressure in March:
30.09"Hg - Average pressure in April:
29.96"Hg - Average pressure in May:
29.96"Hg - Average pressure in June:
29.91"Hg
- Average pressure in July:
29.95"Hg - Average pressure in August:
29.96"Hg - Average pressure in September:
30.03"Hg - Average pressure in October:
29.98"Hg - Average pressure in November:
30.07"Hg - Average pressure in December:
30.08"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 (29.91"Hg).
Average wind speed
Oshkosh, WI
- Average wind speed in January:
10.2mph - Average wind speed in February:
10.2mph - Average wind speed in March:
9.8mph - Average wind speed in April:
10.5mph - Average wind speed in May:
9.2mph - Average wind speed in June:
8.2mph
- Average wind speed in July:
7.5mph - Average wind speed in August:
7.5mph - Average wind speed in September:
8.3mph - Average wind speed in October:
9.9mph - Average wind speed in November:
10.4mph - Average wind speed in December:
10.1mph
The windiest month (with the highest average wind speed) is April (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (7.5mph).
Average humidity
Oshkosh, WI
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is April (76%).
Average rainfall
Oshkosh, WI
- Average rainfall in January:
1.14" - Average rainfall in February:
1.02" - Average rainfall in March:
1.69" - Average rainfall in April:
2.64" - Average rainfall in May:
3.62" - Average rainfall in June:
2.91"
- Average rainfall in July:
2.64" - Average rainfall in August:
1.85" - Average rainfall in September:
2.13" - Average rainfall in October:
2.76" - Average rainfall in November:
1.46" - Average rainfall in December:
1.34"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is February (1.02").
Average rainfall days
Oshkosh, WI
- Average rainfall days in January:
3.6 days - Average rainfall days in February:
3.9 days - Average rainfall days in March:
9.3 days - Average rainfall days in April:
14.3 days - Average rainfall days in May:
15.3 days - Average rainfall days in June:
14.8 days
- Average rainfall days in July:
14.3 days - Average rainfall days in August:
12.9 days - Average rainfall days in September:
12 days - Average rainfall days in October:
12.4 days - Average rainfall days in November:
8.8 days - Average rainfall days in December:
5.2 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (3.6 days).
Average snowfall
Oshkosh, WI
The month with the highest snowfall is January (4.76").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days
Oshkosh, WI
- Average snowfall days in January:
13.8 days - Average snowfall days in February:
10.8 days - Average snowfall days in March:
7.5 days - Average snowfall days in April:
3.7 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0.9 days - Average snowfall days in November:
5.9 days - Average snowfall days in December:
10.9 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight / Average sunshine
Oshkosh, WI
- Average daylight in January:
9h and 18min - Average daylight in February:
10h and 30min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 30min - Average daylight in May:
14h and 48min - Average daylight in June:
15h and 24min
- Average daylight in July:
15h and 6min - Average daylight in August:
14h and 0min - Average daylight in September:
12h and 30min - Average daylight in October:
11h and 0min - Average daylight in November:
9h and 36min - Average daylight in December:
9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in January:
3h and 24min - Average sunshine in February:
3h and 24min - Average sunshine in March:
5h and 30min - Average sunshine in April:
7h and 12min - Average sunshine in May:
8h and 42min - Average sunshine in June:
9h and 12min
- Average sunshine in July:
10h and 6min - Average sunshine in August:
9h and 42min - Average sunshine in September:
8h and 24min - Average sunshine in October:
5h and 12min - Average sunshine in November:
4h and 48min - Average sunshine in December:
3h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and February (Average sunshine: 3h and 24min).
Average sunshine days
Oshkosh, WI
- Average sunshine days in January:
14.9 days - Average sunshine days in February:
14.3 days - Average sunshine days in March:
15.2 days - Average sunshine days in April:
11.9 days - Average sunshine days in May:
13.9 days - Average sunshine days in June:
13.6 days
- Average sunshine days in July:
13.8 days - Average sunshine days in August:
15.8 days - Average sunshine days in September:
17.2 days - Average sunshine days in October:
15.8 days - Average sunshine days in November:
15.6 days - Average sunshine days in December:
15.8 days
The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is April (11.9 days).
Average UV index
Oshkosh, WI
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover
Oshkosh, WI
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility
Oshkosh, WI
The months with the highest visibility are March, April, May, June, July, August, October, November and December (6mi).
The months with the lowest visibility are January, February and September (5mi).





