Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
Transitioning from July to August, Saint Louis observes an average high-temperature of a still warm 77.5°F (25.3°C), differing subtly from the previous month. August's average low-temperature reading settles at a mild 59.2°F (15.1°C).Humidity
In August, the average relative humidity in Saint Louis is 80%.Rainfall
In Saint Louis, Michigan, in August, it is raining for 13.8 days, with typically 1.93" (49mm) of accumulated precipitation. In Saint Louis, during the entire year, the rain falls for 141.3 days and collects up to 22.48" (571mm) of precipitation.Snowfall
In Saint Louis, snow does not fall in May through September.Daylight
In August, the average length of the day in Saint Louis is 13h and 55min.On the first day of August in Saint Louis, Michigan, sunrise is at 6:29 am and sunset at 9:00 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 8:14 pm EDT.
Sunshine
In Saint Louis, the average sunshine in August is 9.7h.UV index
May through August, with an average maximum UV index of 5, are months with the highest UV index in Saint Louis. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index of 5 in August converts into the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Frequently asked questions
What is the temperature in August in Saint Louis?
What is the average humidity in August in Saint Louis?
How much does it rain in Saint Louis in August?
When it does not snow in Saint Louis?
What is the average length of the day in August in Saint Louis?
What time are sunrise and sunset in August in Saint Louis?
How long on average sun shines in August in Saint Louis?
What are the months with the highest UV index in Saint Louis?
How high is the UV index in August in Saint Louis?
Average temperature in August
Saint Louis, MI
- Average high temperature in August: 77.5°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 August: 59.2°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 August
Saint Louis, MI
- Average pressure in August: 29.96"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 August
Saint Louis, MI
- Average wind speed in August: 6.8mph
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 August
Saint Louis, MI
- Average humidity in August: 80%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (75%).
Average rainfall in August
Saint Louis, MI
- Average rainfall in August: 1.93"
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 August
Saint Louis, MI
- Average rainfall days in August: 13.8 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 August
Saint Louis, MI
- Average snowfall in August: 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 August
Saint Louis, MI
- Average snowfall days in August: 0 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 August /
Average sunshine in August
Saint Louis, MI
- Average daylight in August: 13h and 5min
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 August: 9h 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 August
Saint Louis, MI
- Average sunshine days in August: 13.7 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 August
Saint Louis, MI
- Average UV index in August: 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 August
Saint Louis, MI
- Average cloud cover in August: 33
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 August
Saint Louis, MI
- Average visibility in August: 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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