May weather forecast
Oshkosh, WI

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A beautiful nature park with many trees and neat lawns next to a calm pond in Oshkosh, Wisconsin
A beautiful nature park with many trees and neat lawns next to a calm pond in Oshkosh, Wisconsin

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. The frequency of rainy days decreases and one can enjoy longer hours of daylight. With comfortable temperatures and less frequent downpours, May becomes an ideal month for an array of outdoor excursions.

Temperature

As May arrives, Oshkosh's weather shows an increase in high-temperatures, moving from April's cool 50.2°F (10.1°C) to a refreshing 62.2°F (16.8°C). In May, Oshkosh records an average nighttime temperature of 46.4°F (8°C).

Humidity

In Oshkosh, Wisconsin, the average relative humidity in May is 79%.

Rainfall

May is the month with the most rainfall. Rain falls for 15.3 days and accumulates 3.62" (92mm) of precipitation.

Snowfall

In Oshkosh, snow does not fall in May through September.

Daylight

The average length of the day in May in Oshkosh is 14h and 47min.
On the first day of the month, sunrise is at 5:44 am and sunset at 7:57 pm. On the last day of May, in Oshkosh, sunrise is at 5:14 am and sunset at 8:29 pm CDT.

Sunshine

In May, the average sunshine in Oshkosh is 8.7h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: A daily maximum UV index of 5 in May translates into the following instructions:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Oshkosh in May?

The high-temperature in Oshkosh during May is 62.2°F (16.8°C) and the low-temperature is 46.4°F (8°C).

What is the average humidity in May in Oshkosh?

In Oshkosh, the average relative humidity in May is 79%.

What is the rainiest month in Oshkosh?

May is the month with the most rainfall in Oshkosh. Rain falls for 15.3 days and accumulates 3.62" (92mm) of precipitation.

How much does it rain in Oshkosh in May?

In Oshkosh, Wisconsin, in May, during 15.3 rainfall days, 3.62" (92mm) of precipitation is typically accumulated.

When it does not snow in Oshkosh?

May through September are months without snowfall in Oshkosh, Wisconsin.

Does it snow in Oshkosh in May?

In May, in Oshkosh, Wisconsin, it doesn't snow. April is the latest month when it typically snows.

How many hours of daylight does Oshkosh have in May?

In May, the average day length in Oshkosh is 14h and 47min.

When is the sunrise / sunset in May in Oshkosh?

In May, on the first day of the month, sunrise is at 5:44 am and sunset at 7:57 pm. On the last day of the month, in Oshkosh, Wisconsin, sunrise is at 5:14 am and sunset at 8:29 pm CDT.

How many hours of sunshine does Oshkosh have in May?

The average sunshine duration in May is 8.7h.

What are the months with the highest UV index in Oshkosh?

The months with the highest UV index in Oshkosh, Wisconsin, are May through August, with an average maximum UV index of 5.

What is the UV index intensity in May in Oshkosh?

In Oshkosh, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Oshkosh, WI

Average temperature in May - Oshkosh, WI
  • Average high temperature in May: 62.2°F

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).

  • Average low temperature in May: 46.4°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 in May
Oshkosh, WI

Average pressure in May - Oshkosh, WI
  • Average pressure in May: 29.96"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 in May
Oshkosh, WI

Average wind speed in May - Oshkosh, WI
  • Average wind speed in May: 9.2mph

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 in May
Oshkosh, WI

Average humidity in May - Oshkosh, WI
  • Average humidity in May: 79%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is April (76%).

Average rainfall in May
Oshkosh, WI

Average rainfall in May - Oshkosh, WI
  • Average rainfall in May: 3.62"

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 in May
Oshkosh, WI

Average rainfall days in May - Oshkosh, WI
  • Average rainfall days in May: 15.3 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 in May
Oshkosh, WI

Average snowfall in May - Oshkosh, WI
  • Average snowfall in May: 0"

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 in May
Oshkosh, WI

Average snowfall days in May - Oshkosh, WI
  • Average snowfall days in May: 0 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 in May /
Average sunshine in May
Oshkosh, WI

Average daylight in May / Average sunshine in May - Oshkosh, WI
  • Average daylight in May: 14h and 5min

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 May: 8h and 4min

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 in May
Oshkosh, WI

Average sunshine days in May - Oshkosh, WI
  • Average sunshine days in May: 13.9 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 in May
Oshkosh, WI

Average UV index in May - Oshkosh, WI
  • Average UV index in May: 5

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 in May
Oshkosh, WI

Average cloud cover in May - Oshkosh, WI
  • Average cloud cover in May: 42

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 in May
Oshkosh, WI

Average visibility in May - Oshkosh, WI
  • Average visibility in May: 6mi

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).

Oshkosh, Wisconsin, USA

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