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's arrival coincides with a rise in the average high-temperature, moving from April's cool 52.9°F (11.6°C) to a refreshing 65.8°F (18.8°C). In Saint Louis, in May, the average low-temperature is a frosty 47.7°F (8.7°C).Humidity
In Saint Louis, Michigan, the average relative humidity in May is 77%.Rainfall
May is the month with the most rainfall in Saint Louis. Rain falls for 15.9 days and accumulates 3.03" (77mm) of precipitation.Snowfall
In Saint Louis, snow does not fall in May through September.Daylight
In May, the average length of the day in Saint Louis is 14h and 43min.On the first day of the month, sunrise is at 6:30 am and sunset at 8:40 pm. On the last day of May, sunrise is at 6:00 am and sunset at 9:11 pm EDT.
Sunshine
In Saint Louis, the average sunshine in May is 8.6h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index in Saint Louis, Michigan. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In May, the average maximum UV index of 5 translates into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Frequently asked questions
What are the temperatures in Saint Louis in May?
What is the average humidity in May in Saint Louis?
What is the wettest month in Saint Louis?
How many days does it rain in May in Saint Louis?
When it does not snow in Saint Louis?
Does it snow in Saint Louis in May?
How many hours of daylight does Saint Louis have in May?
When is the sunrise / sunset in May in Saint Louis?
How long on average sun shines in May in Saint Louis?
What are the months with the highest UV index in Saint Louis?
What is the UV index reading in May in Saint Louis?
Average temperature in May
Saint Louis, MI
- Average high temperature in May: 65.8°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in May: 47.7°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).
Average pressure in May
Saint Louis, MI
- Average pressure in May: 29.98"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in May
Saint Louis, MI
- Average wind speed in May: 8.5mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in May
Saint Louis, MI
- Average humidity in May: 77%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (75%).
Average rainfall in May
Saint Louis, MI
- Average rainfall in May: 3.03"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is February (1.26").
Average rainfall days in May
Saint Louis, MI
- Average rainfall days in May: 15.9 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in May
Saint Louis, MI
- Average snowfall in May: 0"
The month with the highest snowfall is January (5.91").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Saint Louis, MI
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is January (18 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Saint Louis, MI
- Average daylight in May: 14h and 4min
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 4min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in May
Saint Louis, MI
- Average sunshine days in May: 12.6 days
The month with the most sunshine days is September (15.8 days).
The month with the least sunshine days is January (10.3 days).
Average UV index in May
Saint Louis, MI
- Average UV index in May: 5
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in May
Saint Louis, MI
- Average cloud cover in May: 41
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in May
Saint Louis, MI
- Average visibility in May: 6mi
The months with the highest visibility are March, April, May, June, July, August, October and November (6mi).
The months with the lowest visibility are January, February, September and December (5mi).
Saint Louis, Michigan, USA
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