May weather forecastNorwalk, WI
May
Weather in May
The last month of the spring, May, is an enjoyable month in Norwalk, Wisconsin, with temperature in the range of an average low of 47.5°F (8.6°C) and an average high of 65.7°F (18.7°C).Temperature
Norwalk in May sees a temperature change, with average high-temperatures moving from a cool 52.3°F (11.3°C) in April to a refreshing 65.7°F (18.7°C). Norwalk encounters a steady low-temperature average of 47.5°F (8.6°C) throughout the month of May.Humidity
In Norwalk, the average relative humidity in May is 79%.Rainfall
In Norwalk, in May, it is raining for 15 days, with typically 2.24" (57mm) of accumulated precipitation. In Norwalk, during the entire year, the rain falls for 112.6 days and collects up to 18.11" (460mm) 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, Norwalk aggregates 0.12" (3mm) of snow. In Norwalk, Wisconsin, during the entire year, snow falls for 58.3 days and aggregates up to 16.02" (407mm) of snow.Daylight
In Norwalk, Wisconsin, the average length of the day in May is 14h and 46min.On the first day of the month, sunrise is at 5:53 am and sunset at 8:05 pm. On the last day of May, in Norwalk, sunrise is at 5:23 am and sunset at 8:37 pm CDT.
Sunshine
In Norwalk, Wisconsin, the average sunshine in May is 8.2h.UV index
In Norwalk, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 4 during May translates into the following directions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Norwalk, WI
- Average high temperature in May: 65.7°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 (21.4°F).
- Average low temperature in May: 47.5°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 (8.2°F).
Average pressure in May
Norwalk, 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
Norwalk, WI
- Average wind speed in May: 8.1mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in May
Norwalk, WI
- Average humidity in May: 79%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is April (77%).
Average rainfall in May
Norwalk, WI
- Average rainfall in May: 2.24"
The wettest month (with the highest rainfall) is June (2.91").
The driest months (with the least rainfall) are January and February (0.67").
Average rainfall days in May
Norwalk, WI
- Average rainfall days in May: 15 days
The month with the highest number of rainy days is June (15.3 days).
The month with the least rainy days is February (2.1 days).
Average snowfall in May
Norwalk, WI
- Average snowfall in May: 0.12"
The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Norwalk, WI
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Norwalk, 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 12min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in May
Norwalk, WI
- Average sunshine days in May: 13.8 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is June (11.6 days).
Average UV index in May
Norwalk, WI
- Average UV index in May: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in May
Norwalk, WI
- Average cloud cover in May: 46
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in May
Norwalk, WI
- Average visibility in May: 6mi
The months with the highest visibility are April, May, June, October and November (6mi).
The month with the lowest visibility is January (4mi).
