May weather forecastFrontenac, MO
May
Weather in May
The last month of the spring, May, is a moderately hot month in Frontenac, Missouri, with an average temperature ranging between min 57.7°F (14.3°C) and max 74.8°F (23.8°C).Temperature
A shift in the average high-temperature is noticeable in May, changing from an enjoyable 65.5°F (18.6°C) in April to a moderately hot 74.8°F (23.8°C). In May, Frontenac records an average nighttime temperature of 57.7°F (14.3°C).Humidity
The most humid month is May, with an average relative humidity of 78%.Rainfall
May is the month with the most rainfall. Rain falls for 16.9 days and accumulates 3.58" (91mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Frontenac, the average length of the day in May is 14h and 17min.On the first day of the month, sunrise is at 6:03 am and sunset at 7:54 pm. On the last day of May, sunrise is at 5:38 am and sunset at 8:20 pm CDT.
Sunshine
In Frontenac, the average sunshine in May is 9.5h.UV index
May through August, with an average maximum UV index of 6, are months with the highest UV index in Frontenac. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index, 6 in May, converts into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Frontenac, MO
- Average high temperature in May: 74.8°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in May: 57.7°F
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in May
Frontenac, MO
- Average pressure in May: 29.95"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Frontenac, MO
- Average wind speed in May: 7.2mph
The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in May
Frontenac, MO
- Average humidity in May: 78%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (70%).
Average rainfall in May
Frontenac, MO
- Average rainfall in May: 3.58"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is February (1.69").
Average rainfall days in May
Frontenac, MO
- Average rainfall days in May: 16.9 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is January (6.5 days).
Average snowfall in May
Frontenac, MO
- Average snowfall in May: 0"
The month with the highest snowfall is February (2.6").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
Frontenac, MO
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (5.2 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in May /
Average sunshine in May
Frontenac, 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: 9h and 30min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in May
Frontenac, MO
- Average sunshine days in May: 11.5 days
The month with the most sunshine days is January (21 days).
The month with the least sunshine days is June (11.2 days).
Average UV index in May
Frontenac, MO
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in May
Frontenac, MO
- Average cloud cover in May: 36
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
Frontenac, 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).





