May weather forecast
Oconomowoc, WI

Share

Weather in May

May, the last month of the spring in Oconomowoc, is a refreshing month, with an average temperature ranging between min 47.5°F (8.6°C) and max 65.1°F (18.4°C).

Temperature

May brings an increase in the average high-temperature, progressing from a fresh 52.9°F (11.6°C) in April to an enjoyable 65.1°F (18.4°C). Oconomowoc observes an average nighttime low-temperature of 47.5°F (8.6°C) during the month of May.

Humidity

The average relative humidity in May in Oconomowoc is 79%.

Rainfall

In May, the rain falls for 14 days. Throughout May, 1.57" (40mm) of precipitation is accumulated. Throughout the year, there are 117.9 rainfall days, and 13.82" (351mm) of precipitation is accumulated.

Snowfall

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

Daylight

In Oconomowoc, the average length of the day in May is 14h and 41min.
On the first day of May, sunrise is at 5:46 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:17 am and sunset at 8:26 pm CDT.

Sunshine

In May, the average sunshine is 8.6h.

UV index

In Oconomowoc, the average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum daily UV index of 5 during May morphs into the following directions:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Stay sun-safe with clothing that is both closely woven and worn loosely. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Oconomowoc in May?

May temperatures vary between a high-temperature of 65.1°F (18.4°C) and a low-temperature of 47.5°F (8.6°C).

What is the average humidity in May in Oconomowoc?

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

How many days does it rain in May in Oconomowoc?

In Oconomowoc, in May, during 14 rainfall days, 1.57" (40mm) of precipitation is typically accumulated.

When it does not snow in Oconomowoc?

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

Does it snow in Oconomowoc in May?

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

How many hours of daylight does Oconomowoc have in May?

In Oconomowoc, the average day length in May is 14h and 41min.

When is the sunrise / sunset in May in Oconomowoc?

On the first day of May in Oconomowoc, sunrise is at 5:46 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:17 am and sunset at 8:26 pm CDT.

How many hours of sunshine does Oconomowoc have in May?

In May, the average sunshine duration in Oconomowoc, Wisconsin, is 8.6h.

What is the UV index intensity in May in Oconomowoc?

The average daily maximum UV index in May in Oconomowoc is 5. A UV Index value of 3 to 5 symbolizes 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
Oconomowoc, WI

Average temperature in May - Oconomowoc, WI
  • Average high temperature in May: 65.1°F

The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (24.3°F).

  • Average low temperature in May: 47.5°F

The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).

Average pressure in May
Oconomowoc, WI

Average pressure in May - Oconomowoc, WI
  • Average pressure in May: 29.96"Hg

The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in May
Oconomowoc, WI

Average wind speed in May - Oconomowoc, WI
  • Average wind speed in May: 8.6mph

The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

Average humidity in May
Oconomowoc, WI

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

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

Average rainfall in May
Oconomowoc, WI

Average rainfall in May - Oconomowoc, WI
  • Average rainfall in May: 1.57"

The wettest month (with the highest rainfall) is July (1.85").
The driest months (with the least rainfall) are February and December (0.59").

Average rainfall days in May
Oconomowoc, WI

Average rainfall days in May - Oconomowoc, WI
  • Average rainfall days in May: 14 days

The month with the highest number of rainy days is July (14.7 days).
The month with the least rainy days is January (2.8 days).

Average snowfall in May
Oconomowoc, WI

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

The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Oconomowoc, WI

Average snowfall days in May - Oconomowoc, WI
  • Average snowfall days in May: 0.1 days

The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in May /
Average sunshine in May
Oconomowoc, WI

Average daylight in May / Average sunshine in May - Oconomowoc, WI
  • Average daylight in May: 14h and 4min

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in May: 8h and 4min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

Average sunshine days in May
Oconomowoc, WI

Average sunshine days in May - Oconomowoc, WI
  • Average sunshine days in May: 14.7 days

The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is July (11.7 days).

Average UV index in May
Oconomowoc, WI

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

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).

Average cloud cover in May
Oconomowoc, WI

Average cloud cover in May - Oconomowoc, WI
  • Average cloud cover in May: 43

The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July, August and September (Cloud cover 34).

Average visibility in May
Oconomowoc, WI

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

The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).

Oconomowoc, Wisconsin, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location