May weather forecastPackwaukee, WI
May
Weather in May
The last month of the spring, May, is a refreshing month in Packwaukee, Wisconsin, with temperature in the range of an average high of 65.8°F (18.8°C) and an average low of 47.7°F (8.7°C).Temperature
May comes with an increase, with the average high-temperature moving from a fresh 52.3°F (11.3°C) in April to an enjoyable 65.8°F (18.8°C). The mean low-temperature during May nights is a chilly 47.7°F (8.7°C).Humidity
In Packwaukee, the average relative humidity in May is 78%.Rainfall
In May, the rain falls for 18.6 days. Throughout May, 3.58" (91mm) of precipitation is accumulated. In Packwaukee, during the entire year, the rain falls for 146.3 days and collects up to 29.45" (748mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. May is the last month it regularly snows. During 0.3 snowfall days, in May, Packwaukee aggregates 0.04" (1mm) of snow. Throughout the year, there are 61.9 snowfall days, and 24.76" (629mm) of snow is accumulated.Daylight
In Packwaukee, the average length of the day in May is 14h and 45min.On the first day of May, sunrise is at 5:48 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 5:18 am and sunset at 8:32 pm CDT.
Sunshine
The average sunshine in May is 8.7h.UV index
The average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 5 in May translates into these instructions:
Take necessary precautions - Protection from skin and eye injury is mandatory. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Packwaukee, WI
- Average high temperature in May: 65.8°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (22.3°F).
- Average low temperature in May: 47.7°F
The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (10.4°F).
Average pressure in May
Packwaukee, WI
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Packwaukee, WI
- Average wind speed in May: 8.7mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in May
Packwaukee, WI
- Average humidity in May: 78%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (75%).
Average rainfall in May
Packwaukee, WI
- Average rainfall in May: 3.58"
The wettest month (with the highest rainfall) is June (3.94").
The driest month (with the least rainfall) is January (1.22").
Average rainfall days in May
Packwaukee, WI
- Average rainfall days in May: 18.6 days
The month with the highest number of rainy days is May (18.6 days).
The month with the least rainy days is February (4.1 days).
Average snowfall in May
Packwaukee, WI
- Average snowfall in May: 0.04"
The month with the highest snowfall is February (6.42").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Packwaukee, WI
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (15 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Packwaukee, WI
- Average daylight in May: 14h and 48min
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 42min
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
Packwaukee, WI
- Average sunshine days in May: 9.6 days
The month with the most sunshine days is October (15.3 days).
The month with the least sunshine days is June (8.6 days).
Average UV index in May
Packwaukee, WI
- Average UV index in May: 5
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in May
Packwaukee, 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 August (Cloud cover 33).
Average visibility in May
Packwaukee, WI
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, August, September, October and November (6mi).
The months with the lowest visibility are January, February, July and December (5mi).





