May weather forecastPlatteville, WI
May
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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: 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: 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: 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: 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: 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: 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: 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: 14h and 42min
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 18min
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: 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: 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: 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: 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).





