May weather forecastMount Ayr, IA
May
Weather in May
May, the last month of the spring in Mount Ayr, is an agreeable month, with temperature in the range of an average high of 69.6°F (20.9°C) and an average low of 53.1°F (11.7°C).Temperature
The onset of May brings a temperature shift, with the average high-temperature moving from a moderate 60.4°F (15.8°C) in April to an agreeable 69.6°F (20.9°C). Mount Ayr's temperature drops to an average low of 53.1°F (11.7°C) during the nights of May.Humidity
In May, the average relative humidity in Mount Ayr is 80%.Rainfall
In Mount Ayr, during May, the rain falls for 17.8 days and regularly aggregates up to 3.46" (88mm) of precipitation. Throughout the year, in Mount Ayr, there are 126.9 rainfall days, and 22.6" (574mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. May is the last month it regularly snows in Mount Ayr. During 0.2 snowfall days, in May, Mount Ayr aggregates 0.24" (6mm) of snow. In Mount Ayr, during the entire year, snow falls for 28.7 days and aggregates up to 11.85" (301mm) of snow.Daylight
In Mount Ayr, the average length of the day in May is 14h and 28min.On the first day of the month, sunrise is at 6:14 am and sunset at 8:13 pm. On the last day of May, sunrise is at 5:47 am and sunset at 8:41 pm CDT.
Sunshine
In May, the average sunshine in Mount Ayr, Iowa, is 8.5h.UV index
In Mount Ayr, the average daily maximum UV index in May is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The daily high UV index of 5 during May translates into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Mount Ayr, IA
- Average high temperature in May: 69.6°F
The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in May: 53.1°F
The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in May
Mount Ayr, 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
Mount Ayr, IA
- Average wind speed in May: 8.5mph
The windiest months (with the highest average wind speed) are January, February and March (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in May
Mount Ayr, IA
- Average humidity in May: 80%
The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in May
Mount Ayr, IA
- Average rainfall in May: 3.46"
The wettest month (with the highest rainfall) is June (3.86").
The driest months (with the least rainfall) are February and December (0.71").
Average rainfall days in May
Mount Ayr, IA
- Average rainfall days in May: 17.8 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (4.1 days).
Average snowfall in May
Mount Ayr, IA
- Average snowfall in May: 0.24"
The month with the highest snowfall is January (3.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in May
Mount Ayr, IA
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Mount Ayr, IA
- Average daylight in May: 14h and 30min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in May: 8h and 30min
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 36min).
Average sunshine days in May
Mount Ayr, IA
- Average sunshine days in May: 10.6 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in May
Mount Ayr, 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
Mount Ayr, IA
- Average cloud cover in May: 42
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in May
Mount Ayr, 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).





