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 in Des Moines, Iowa, brings a rise in the average high-temperature, transitioning from April's moderate 59.7°F (15.4°C) to a pleasant 69.6°F (20.9°C). An average temperature of 53.1°F (11.7°C) is recorded in Des Moines during the nights in May.Humidity
In May, the average relative humidity is 78%.Rainfall
The month with the most rainfall in Des Moines is May, when the rain falls for 15.3 days and typically aggregates up to 2.76" (70mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows. During 0.2 snowfall days, in May, Des Moines aggregates 0.08" (2mm) of snow. In Des Moines, during the entire year, snow falls for 30.9 days and aggregates up to 7.36" (187mm) of snow.Daylight
The average length of the day in May is 14h and 33min.On the first day of the month, sunrise is at 6:09 am and sunset at 8:12 pm. On the last day of May, sunrise is at 5:42 am and sunset at 8:41 pm CDT.
Sunshine
In May, the average sunshine is 8.6h.UV index
The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index, 5 during May, leads to the following recommendations:
Act with care - The need to guard against sun damage is communicated. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Frequently asked questions
What are May temperatures in Des Moines?
What is the average humidity in May in Des Moines?
What is the wettest month in Des Moines?
How many days does it rain in May in Des Moines?
What is the last month it snows in Des Moines?
How many hours of daylight does Des Moines have in May?
What time are sunrise and sunset in May in Des Moines?
How many hours of sunshine does Des Moines have in May?
What is the UV index intensity in May in Des Moines?
Average temperature in May
Des Moines, IA
- Average high temperature in May: 69.6°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in May: 53.1°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in May
Des Moines, 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 (29.88"Hg).
Average wind speed in May
Des Moines, IA
- Average wind speed in May: 8.8mph
The windiest months (with the highest average wind speed) are January, February, March and April (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).
Average humidity in May
Des Moines, IA
- Average humidity in May: 78%
The months with the highest relative humidity are January and June (82%).
The month with the lowest relative humidity is October (70%).
Average rainfall in May
Des Moines, IA
- Average rainfall in May: 2.76"
The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in May
Des Moines, IA
- Average rainfall days in May: 15.3 days
The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is February (3 days).
Average snowfall in May
Des Moines, IA
- Average snowfall in May: 0.08"
The month with the highest snowfall is January (2.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Des Moines, IA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Des Moines, IA
- Average daylight in May: 14h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in May
Des Moines, IA
- Average sunshine days in May: 12.4 days
The month with the most sunshine days is December (22.3 days).
The month with the least sunshine days is June (12.2 days).
Average UV index in May
Des Moines, IA
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in May
Des Moines, IA
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and September (Cloud cover 29).
Average visibility in May
Des Moines, IA
- Average visibility in May: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Des Moines, Iowa, USA
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