Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
With the beginning of October, the average high-temperature shows a decrease, transitioning from a pleasant 71.1°F (21.7°C) in September to a mild 58.1°F (14.5°C). Saint Louis records a consistent low-temperature of 43.2°F (6.2°C) during October nights.Humidity
In Saint Louis, the average relative humidity in October is 79%.Rainfall
In Saint Louis, in October, it is raining for 15.3 days, with typically 2.56" (65mm) of accumulated precipitation. Throughout the year, there are 141.3 rainfall days, and 22.48" (571mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 0.3 snowfall days, it receives 0.08" (2mm) of snow. In Saint Louis, during the entire year, snow falls for 65.5 days and aggregates up to 19.65" (499mm) of snow.Daylight
In Saint Louis, the average length of the day in October is 11h and 1min.On the first day of the month, sunrise is at 7:36 am and sunset at 7:18 pm. On the last day of October, sunrise is at 8:13 am and sunset at 6:30 pm EDT.
Sunshine
In Saint Louis, the average sunshine in October is 5.3h.UV index
In Saint Louis, the average daily maximum UV index in October is 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum high daily UV index of 2 during October translates into the following directions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Saint Louis in October?
What is the average humidity in October?
How much does it rain in October?
When does it start to snow?
How many hours of daylight does Saint Louis have in October?
When are sunrise and sunset in October?
How long on average sun shines in October?
What is the UV index intensity in October?
Average temperature in October
Saint Louis, MI
- Average high temperature in October: 58.1°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 October: 43.2°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 October
Saint Louis, MI
- Average pressure in October: 29.99"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 October
Saint Louis, MI
- Average wind speed in October: 8.9mph
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 October
Saint Louis, MI
- Average humidity in October: 79%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (75%).
Average rainfall in October
Saint Louis, MI
- Average rainfall in October: 2.56"
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 October
Saint Louis, MI
- Average rainfall days in October: 15.3 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 October
Saint Louis, MI
- Average snowfall in October: 0.08"
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 October
Saint Louis, MI
- Average snowfall days in October: 0.3 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 October /
Average sunshine in October
Saint Louis, MI
- Average daylight in October: 11h and 0min
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 October: 5h and 2min
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 October
Saint Louis, MI
- Average sunshine days in October: 13.2 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 October
Saint Louis, MI
- Average UV index in October: 2
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 October
Saint Louis, MI
- Average cloud cover in October: 49
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 October
Saint Louis, MI
- Average visibility in October: 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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