Contents
- Weather in October
- Frequently asked questions
- Average temperature 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 UV index in October
Weather in October
Temperature
In October, the meteorological conditions in St. Louis alter, with the average high-temperature shifting from a moderately hot 80.2°F (26.8°C) in September to a pleasant 68.5°F (20.3°C). St. Louis observes an average nighttime low-temperature of 48.9°F (9.4°C) during the month of October.Humidity
The average relative humidity in October in St. Louis is 68.7%.Rainfall
In St. Louis, during October, the rain falls for 8.7 days and regularly aggregates up to 3.35" (85mm) of precipitation. Throughout the year, in St. Louis, there are 112.6 rainfall days, and 40.94" (1040mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in St. Louis.Daylight
The average length of the day in October in St. Louis is 11h and 11min.On the first day of the month, sunrise is at 6:57 am and sunset at 6:43 pm. On the last day of October, in St. Louis, sunrise is at 7:27 am and sunset at 6:01 pm CDT.
Sunshine
In October, the average sunshine in St. Louis is 6.7h.UV index
The average daily maximum UV index in October in St. Louis is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: A maximum high daily UV index of 4 during October translates into the following directions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Frequently asked questions
What are October temperatures in St. Louis?
What is the average humidity in October in St. Louis?
How much does it rain in St. Louis in October?
When it does not snow in St. Louis?
Does it snow in St. Louis in October?
What is the average length of the day in October in St. Louis?
When is the sunrise / sunset in October in St. Louis?
How many hours of sunshine does St. Louis have in October?
What is the UV index reading in October in St. Louis?
Average temperature in October
St. Louis, MO
- Average high temperature in October: 68.5°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (39.9°F).
- Average low temperature in October: 49°F
The month with the highest average low temperature is July (71°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).
Average humidity in October
St. Louis, MO
- Average humidity in October: 68.7%
The month with the highest relative humidity is December (75.8%).
The month with the lowest relative humidity is April (63.5%).
Average rainfall in October
St. Louis, MO
- Average rainfall in October: 3.3"
The wettest month (with the highest rainfall) is May (4.7").
The driest month (with the least rainfall) is February (2.2").
Average rainfall days in October
St. Louis, MO
- Average rainfall days in October: 8.7 days
The month with the highest number of rainy days is May (11.9 days).
The month with the least rainy days is September (7.4 days).
Average snowfall in October
St. Louis, MO
- Average snowfall in October: 0"
The month with the highest snowfall is January (5.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
St. Louis, MO
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is January (4.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in October /
Average sunshine in October
St. Louis, MO
- Average daylight in October: 11h and 1min
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 October: 6h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 12min).
Average UV index in October
St. Louis, MO
- Average UV index in October: 4
The months with the highest UV index are June, July and August (UV index 9).
The months with the lowest UV index are January and December (UV index 2).
St. Louis, Missouri, USA
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