May weather forecastIonia, MO
May
Weather in May
The last month of the spring, May, is a pleasant month in Ionia, Missouri, with an average temperature fluctuating between 73°F (22.8°C) and 55.9°F (13.3°C).Temperature
As Ionia enters May, the average high-temperature marginally increases from the a comfortable 64.9°F (18.3°C) of April to a pleasant 73°F (22.8°C). An average low-temperature of 55.9°F (13.3°C) is expected during May.Humidity
With an average relative humidity of 81%, May is the most humid month in Ionia.Rainfall
May is the month with the most rainfall. Rain falls for 15 days and accumulates 3.27" (83mm) of precipitation.Snowfall
Months with snowfall are January through May, November and December. May is the last month it regularly snows. During 0.1 snowfall days, in May, Ionia aggregates 0.08" (2mm) of snow. Throughout the year, there are 19.3 snowfall days, and 5.39" (137mm) of snow is accumulated.Daylight
In Ionia, the average length of the day in May is 14h and 17min.On the first day of the month, sunrise is at 6:15 am and sunset at 8:05 pm. On the last day of May, sunrise is at 5:50 am and sunset at 8:31 pm CDT.
Sunshine
The average sunshine in May is 8.6h.UV index
In May, the average daily maximum UV index in Ionia is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: A maximum daily UV index of 5 during May morphs into the following directions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Ionia, MO
- Average high temperature in May: 73°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.1°F).
- Average low temperature in May: 55.9°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in May
Ionia, MO
- Average pressure in May: 29.94"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in May
Ionia, MO
- Average wind speed in May: 8.5mph
The windiest month (with the highest average wind speed) is March (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in May
Ionia, MO
- Average humidity in May: 81%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (72%).
Average rainfall in May
Ionia, MO
- Average rainfall in May: 3.27"
The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in May
Ionia, MO
- Average rainfall days in May: 15 days
The month with the highest number of rainy days is May (15 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in May
Ionia, MO
- Average snowfall in May: 0.08"
The month with the highest snowfall is January (1.77").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in May
Ionia, MO
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is February (6.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Ionia, MO
- Average daylight in May: 14h and 18min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in May: 8h and 36min
The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in May
Ionia, MO
- Average sunshine days in May: 12.9 days
The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is May (12.9 days).
Average UV index in May
Ionia, MO
- Average UV index in May: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Ionia, MO
- Average cloud cover in May: 40
The month with the most cloud cover is March (Cloud cover 49).
The months with the least cloud cover are June, July and August (Cloud cover 28).
Average visibility in May
Ionia, MO
- 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).





