September weather forecastCainsville, MO
September
Weather in September
September, the first month of the autumn in Cainsville, is also a moderately hot month, with an average temperature ranging between min 57.4°F (14.1°C) and max 76.8°F (24.9°C).Temperature
The transition into September subtly indicates a reduction in the average high-temperature, down to a still warm 76.8°F (24.9°C) from August's moderately hot 82.9°F (28.3°C). Throughout the nights in September, an average low-temperature of 57.4°F (14.1°C) is noted in Cainsville.Humidity
In September, the average relative humidity is 76%.Rainfall
In September, the rain falls for 11.3 days. Throughout September, 2.56" (65mm) of precipitation is accumulated. Throughout the year, in Cainsville, there are 130.3 rainfall days, and 25.43" (646mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September in Cainsville is 12h and 27min.On the first day of the month, sunrise is at 6:43 am and sunset at 7:46 pm. On the last day of September, sunrise is at 7:11 am and sunset at 6:58 pm CDT.
Sunshine
The average sunshine in September in Cainsville is 9.3h.UV index
In Cainsville, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: An average maximum UV index of 5 in September leads to these recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cainsville, MO
- Average high temperature in September: 76.8°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in September: 57.4°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in September
Cainsville, MO
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Cainsville, MO
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in September
Cainsville, MO
- Average humidity in September: 76%
The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Cainsville, MO
- Average rainfall in September: 2.56"
The wettest month (with the highest rainfall) is June (3.78").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in September
Cainsville, MO
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is February (4.5 days).
Average snowfall in September
Cainsville, MO
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.78").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Cainsville, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Cainsville, MO
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 9h and 18min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in September
Cainsville, MO
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is November (20.7 days).
The months with the least sunshine days are May and June (11.2 days).
Average UV index in September
Cainsville, MO
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Cainsville, MO
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in September
Cainsville, MO
- Average visibility in September: 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).





