May weather forecast
Platteville, WI

Share

Weather in May

The last month of the spring, May, is a refreshing month in Platteville, Wisconsin, with temperature in the range of an average high of 66.7°F (19.3°C) and an average low of 48.9°F (9.4°C).

Temperature

Entering May, Platteville sees a temperature rise, with the average high-temperature advancing from April's fresh 54.7°F (12.6°C) to a refreshing 66.7°F (19.3°C). The low-temperature average for Platteville during May stands at a frosty 48.9°F (9.4°C).

Humidity

The average relative humidity in May is 81%.

Rainfall

In May, the rain falls for 18.8 days. Throughout May, 3.7" (94mm) of precipitation is accumulated. In Platteville, during the entire year, the rain falls for 140.6 days and collects up to 28.66" (728mm) of precipitation.

Snowfall

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

Daylight

In Platteville, Wisconsin, the average length of the day in May is 14h and 39min.
On the first day of May in Platteville, sunrise is at 5:55 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 5:26 am and sunset at 8:33 pm CDT.

Sunshine

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

UV index

In May, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the ordinary person.
Note: In May, a daily maximum UV index of 5 leads to the following instructions:
Undertake precautions - Obligation exists to protect against skin and eye damage. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are May temperatures?

The average high-temperature, in May, in Platteville, is 66.7°F (19.3°C), while the average low-temperature is 48.9°F (9.4°C).

What is the average humidity in May?

In May, the average relative humidity is 81%.

How many days does it rain in May?

In May, the rain falls for 18.8 days. Throughout May, 3.7" (94mm) of precipitation is accumulated.

When it does not snow?

May through September are months without snowfall.

Does it snow in May?

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

How many hours of daylight does Platteville have in May?

In Platteville, the average day length in May is 14h and 39min.

When is the sunrise / sunset in May?

In May, on the first day of the month, sunrise is at 5:55 am and sunset at 8:02 pm. On the last day of the month, in Platteville, sunrise is at 5:26 am and sunset at 8:33 pm CDT.

How many hours of sunshine does Platteville have in May?

In May, the average sunshine duration is 8.3h.

What is the UV index reading in May?

In May, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to 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
Platteville, WI

Average temperature in May - Platteville, WI
  • Average high temperature in May: 66.7°F

The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (24.1°F).

  • Average low temperature in May: 48.9°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).

Average pressure in May
Platteville, WI

Average pressure in May - Platteville, WI
  • Average pressure in May: 29.95"Hg

The months with the highest atmospheric pressure are January and February (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in May
Platteville, WI

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

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
Platteville, WI

Average humidity in May - Platteville, WI
  • Average humidity in May: 81%

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
Platteville, WI

Average rainfall in May - Platteville, WI
  • Average rainfall in May: 3.7"

The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is February (1.14").

Average rainfall days in May
Platteville, WI

Average rainfall days in May - Platteville, WI
  • Average rainfall days in May: 18.8 days

The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is February (4 days).

Average snowfall in May
Platteville, WI

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

The month with the highest snowfall is January (4.88").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in May
Platteville, WI

Average snowfall days in May - Platteville, WI
  • Average snowfall days in May: 0.2 days

The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in May / Average sunshine in May - Platteville, 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 30min).

Average sunshine days in May
Platteville, WI

Average sunshine days in May - Platteville, WI
  • Average sunshine days in May: 10.3 days

The month with the most sunshine days is December (17.2 days).
The month with the least sunshine days is June (9.7 days).

Average UV index in May
Platteville, WI

Average UV index in May - Platteville, 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
Platteville, WI

Average cloud cover in May - Platteville, WI
  • Average cloud cover in May: 45

The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in May
Platteville, WI

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

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

Platteville, Wisconsin, USA

Weather forecast for your location

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