Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
May's arrival signals an increase in average high-temperatures, moving from April's cool 51.4°F (10.8°C) to a comfortable 63.5°F (17.5°C). The average low-temperature, in May, is a frosty 47.3°F (8.5°C).Humidity
In May, the average relative humidity in Merton, Wisconsin, is 79%.Rainfall
In Merton, in May, during 18.1 rainfall days, 3.11" (79mm) of precipitation is typically accumulated. In Merton, Wisconsin, during the entire year, the rain falls for 149.2 days and collects up to 28.54" (725mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Merton, Wisconsin. May is the last month it regularly snows. During 0.2 snowfall days, in May, Merton aggregates 0.04" (1mm) of snow. In Merton, during the entire year, snow falls for 58.7 days and aggregates up to 20.47" (520mm) of snow.Daylight
In May, the average length of the day is 14h and 41min.On the first day of May, sunrise is at 5:45 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:16 am and sunset at 8:25 pm CDT.
Sunshine
In May, the average sunshine is 8.7h.UV index
In Merton, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 4 in May interprets into the following recommendations:
Act with care - The need to guard against sun damage is communicated. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Frequently asked questions
What are May temperatures in Merton?
What is the average humidity in May in Merton?
How many days does it rain in May in Merton?
What is the last month it snows in Merton?
How many hours of daylight does Merton have in May?
What time are sunrise and sunset in May in Merton?
How many hours of sunshine does Merton have in May?
What is the UV index reading in May in Merton?
Average temperature in May
Merton, WI
- Average high temperature in May: 63.5°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (25.2°F).
- Average low temperature in May: 47.3°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (13.6°F).
Average pressure in May
Merton, WI
- Average pressure in May: 29.96"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Merton, WI
- Average wind speed in May: 8.6mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).
Average humidity in May
Merton, WI
- Average humidity in May: 79%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in May
Merton, WI
- Average rainfall in May: 3.11"
The wettest month (with the highest rainfall) is June (3.43").
The driest month (with the least rainfall) is February (1.46").
Average rainfall days in May
Merton, WI
- Average rainfall days in May: 18.1 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in May
Merton, WI
- Average snowfall in May: 0.04"
The month with the highest snowfall is January (5.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Merton, WI
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Merton, 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 4min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in May
Merton, WI
- Average sunshine days in May: 10.6 days
The month with the most sunshine days is November (15.9 days).
The months with the least sunshine days are June and July (10.3 days).
Average UV index in May
Merton, WI
- Average UV index in May: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in May
Merton, WI
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 63).
The months with the least cloud cover are August and September (Cloud cover 30).
Average visibility in May
Merton, WI
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Merton, Wisconsin, USA
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