May weather forecastWest Okoboji, IA
May
Weather in May
The last month of the spring, May, is a comfortable month in West Okoboji, Iowa, with an average temperature fluctuating between 67.6°F (19.8°C) and 50.9°F (10.5°C).Temperature
May's arrival brings a temperature shift, moving from a cool 55°F (12.8°C) in April to a refreshing 67.6°F (19.8°C). In the month of May, West Okoboji's average low-temperature falls to a fresh 50.9°F (10.5°C).Humidity
In West Okoboji, the average relative humidity in May is 69%.Rainfall
In May, the rain falls for 15.7 days. Throughout May, 3.07" (78mm) of precipitation is accumulated. Throughout the year, in West Okoboji, there are 121.8 rainfall days, and 23.27" (591mm) of precipitation is accumulated.Snowfall
Months with snowfall in West Okoboji are January through May, October through December. May is the last month it regularly snows. During 0.4 snowfall days, in May, West Okoboji aggregates 0.16" (4mm) of snow. In West Okoboji, during the entire year, snow falls for 48.3 days and aggregates up to 21.18" (538mm) of snow.Daylight
In West Okoboji, Iowa, the average length of the day in May is 14h and 43min.On the first day of the month, sunrise is at 6:12 am and sunset at 8:22 pm. On the last day of May, sunrise is at 5:43 am and sunset at 8:53 pm CDT.
Sunshine
The average sunshine in May is 8.7h.UV index
In West Okoboji, the average daily maximum UV index in May is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: A typical high UV index of 5 in May suggests the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
West Okoboji, IA
- Average high temperature in May: 67.6°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 (22.8°F).
- Average low temperature in May: 50.9°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 (9.5°F).
Average pressure in May
West Okoboji, IA
- Average pressure in May: 29.93"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in May
West Okoboji, IA
- Average wind speed in May: 9.7mph
The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).
Average humidity in May
West Okoboji, IA
- Average humidity in May: 69%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (68%).
Average rainfall in May
West Okoboji, IA
- Average rainfall in May: 3.07"
The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is January (0.83").
Average rainfall days in May
West Okoboji, IA
- Average rainfall days in May: 15.7 days
The month with the highest number of rainy days is June (16.1 days).
The month with the least rainy days is February (3 days).
Average snowfall in May
West Okoboji, IA
- Average snowfall in May: 0.16"
The month with the highest snowfall is February (5.04").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
West Okoboji, IA
- Average snowfall days in May: 0.4 days
The month with the highest number of snowfall days is December (11 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
West Okoboji, IA
- Average daylight in May: 14h and 42min
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: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in May
West Okoboji, IA
- Average sunshine days in May: 13.5 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in May
West Okoboji, IA
- 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, February and November (UV index 1).
Average cloud cover in May
West Okoboji, IA
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in May
West Okoboji, IA
- Average visibility in May: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).





