May weather forecast
Monona, WI

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Weather in May

The last month of the spring, May, is a refreshing month in Monona, Wisconsin, with temperature in the range of an average high of 65.8°F (18.8°C) and an average low of 48.7°F (9.3°C).

Temperature

The start of May signals an increase in the average high-temperature, moving from a cool 53.8°F (12.1°C) in April to a comfortable 65.8°F (18.8°C). In Monona, the average temperature during the nights of May drops to a frosty 48.7°F (9.3°C).

Humidity

In May, the average relative humidity is 80%.

Rainfall

In Monona, during May, the rain falls for 6.6 days and regularly aggregates up to 0.59" (15mm) of precipitation. Throughout the year, there are 50.2 rainfall days, and 4.76" (121mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In Monona, the average length of the day in May is 14h and 41min.
On the first day of May, sunrise is at 5:49 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 5:20 am and sunset at 8:29 pm CDT.

Sunshine

In Monona, the average sunshine in May is 8.3h.

UV index

The average daily maximum UV index in May is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 5 during May leads to these instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Updated: Jul 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May in Monona?

In Monona, 65.8°F (18.8°C) is the average high-temperature and 48.7°F (9.3°C) is the average low-temperature during May.

What is the average humidity in May?

The average relative humidity in May is 80%.

How much does it rain in Monona in May?

In Monona, during May, the rain falls for 6.6 days and regularly aggregates up to 0.59" (15mm) of precipitation.

When it does not snow?

May through September are months without snowfall.

Does it snow in Monona in May?

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

How many hours of daylight does Monona have in May?

The average day length in May is 14h and 41min.

When are sunrise and sunset in May?

On the first day of May, sunrise is at 5:49 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 5:20 am and sunset at 8:29 pm CDT.

How long on average sun shines in May?

The average sunshine duration in May is 8.3h.

How high is the UV index in May?

In Monona, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health threat 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
Monona, WI

Average temperature in May - Monona, WI
  • Average high temperature in May: 65.8°F

The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (23.9°F).

  • Average low temperature in May: 48.7°F

The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

Average pressure in May
Monona, WI

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

The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in May
Monona, WI

Average wind speed in May - Monona, WI
  • Average wind speed in May: 8.7mph

The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).

Average humidity in May
Monona, WI

Average humidity in May - Monona, WI
  • Average humidity in May: 80%

The months with the highest relative humidity are January and February (88%).
The months with the lowest relative humidity are April and October (77%).

Average rainfall in May
Monona, WI

Average rainfall in May - Monona, WI
  • Average rainfall in May: 0.59"

The wettest month (with the highest rainfall) is July (0.63").
The driest months (with the least rainfall) are January, March, November and December (0.24").

Average rainfall days in May
Monona, WI

Average rainfall days in May - Monona, WI
  • Average rainfall days in May: 6.6 days

The month with the highest number of rainy days is June (6.7 days).
The month with the least rainy days is January (1.1 days).

Average snowfall in May
Monona, WI

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

The month with the highest snowfall is February (0.94").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Monona, WI

Average snowfall days in May - Monona, WI
  • Average snowfall days in May: 0.3 days

The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Monona, 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 2min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).

Average sunshine days in May
Monona, WI

Average sunshine days in May - Monona, WI
  • Average sunshine days in May: 21.2 days

The month with the most sunshine days is December (27 days).
The month with the least sunshine days is June (19.8 days).

Average UV index in May
Monona, WI

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

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

Average cloud cover in May
Monona, WI

Average cloud cover in May - Monona, WI
  • Average cloud cover in May: 44

The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in May
Monona, WI

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

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

Monona, Wisconsin, USA

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