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
The arrival of May signals an increase in the average high-temperature, moving from a fresh 54.1°F (12.3°C) in April to an enjoyable 66.6°F (19.2°C). An average nighttime temperature of 48.4°F (9.1°C) is witnessed throughout May.Humidity
In Seneca, Wisconsin, the average relative humidity in May is 80%.Rainfall
In Seneca, in May, during 19.2 rainfall days, 3.58" (91mm) of precipitation is typically accumulated. In Seneca, during the entire year, the rain falls for 142.4 days and collects up to 28.66" (728mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In May, the average length of the day is 14h and 42min.On the first day of May, sunrise is at 5:55 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 5:26 am and sunset at 8:36 pm CDT.
Sunshine
In May, the average sunshine is 8.2h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In May, the maximum UV index of 5 suggests this advice:
Exercise prevention - Precautions against solar damage are endorsed. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average May temperature?
What is the average humidity in May?
How many days does it rain in May?
When it does not snow in Seneca?
Does it snow in May?
What is the average length of the day in May?
When are sunrise and sunset in May?
How many hours of sunshine does Seneca have in May?
What are the months with the highest UV index?
What is the UV index reading in May in Seneca?
Average temperature in May
Seneca, WI
- Average high temperature in May: 66.6°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in May: 48.4°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (9.9°F).
Average pressure in May
Seneca, 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
Seneca, WI
- Average wind speed in May: 8.1mph
The windiest month (with the highest average wind speed) is April (9.4mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in May
Seneca, WI
- Average humidity in May: 80%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and October (77%).
Average rainfall in May
Seneca, WI
- Average rainfall in May: 3.58"
The wettest month (with the highest rainfall) is June (4.17").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in May
Seneca, WI
- Average rainfall days in May: 19.2 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in May
Seneca, WI
- Average snowfall in May: 0"
The month with the highest snowfall is February (5.98").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Seneca, WI
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (15.7 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Seneca, 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 0min).
- Average sunshine in May: 8h and 1min
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 24min).
Average sunshine days in May
Seneca, WI
- Average sunshine days in May: 9.7 days
The month with the most sunshine days is November (16.7 days).
The month with the least sunshine days is June (9.2 days).
Average UV index in May
Seneca, WI
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in May
Seneca, WI
- Average cloud cover in May: 45
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in May
Seneca, 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).
Seneca, Wisconsin, USA
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