September weather forecastChain-O-Lakes, MO
September
Weather in September
September, the first month of the autumn in Chain-O-Lakes, is still a warm month, with an average temperature varying between 60.1°F (15.6°C) and 81.5°F (27.5°C).Temperature
In Chain-O-Lakes, the average high-temperature in September slightly decreases from a tropical 88.3°F (31.3°C) in August to a warm 81.5°F (27.5°C). Chain-O-Lakes's temperature tends to fall to an average low of 60.1°F (15.6°C) during the nights of September.Heat index
September's mean heat index is computed to be a tropical 86°F (30°C). Ongoing exposure and activity could lead to a state of exhaustion, with a chance of heat cramps.Understand that the heat index values take into account shaded locations and mild winds. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', reflects the feeling of heat when considering both air temperature and humidity. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
The average relative humidity in September is 74%.Rainfall
In September, the rain falls for 12.4 days. Throughout September, 2.05" (52mm) of precipitation is accumulated. Throughout the year, there are 147.8 rainfall days, and 32.01" (813mm) of precipitation is accumulated.Snowfall
June through October are months without snowfall in Chain-O-Lakes.Daylight
The average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 6:46 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:59 pm CDT.
Sunshine
In Chain-O-Lakes, the average sunshine in September is 9.4h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chain-O-Lakes, MO
- Average high temperature in September: 81.5°F
The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (44.1°F).
- Average low temperature in September: 60.1°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (28°F).
Average pressure in September
Chain-O-Lakes, MO
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Chain-O-Lakes, MO
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Chain-O-Lakes, MO
- Average humidity in September: 74%
The months with the highest relative humidity are March and May (77%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Chain-O-Lakes, MO
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is February (1.73").
Average rainfall days in September
Chain-O-Lakes, MO
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is July (16.9 days).
The months with the least rainy days are January and December (8 days).
Average snowfall in September
Chain-O-Lakes, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.17").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Chain-O-Lakes, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Chain-O-Lakes, MO
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h and 24min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in September
Chain-O-Lakes, MO
- Average sunshine days in September: 15.8 days
The months with the most sunshine days are October and December (19.7 days).
The month with the least sunshine days is July (11.5 days).
Average UV index in September
Chain-O-Lakes, MO
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Chain-O-Lakes, MO
- Average cloud cover in September: 28
The month with the most cloud cover is March (Cloud cover 46).
The months with the least cloud cover are June, July and August (Cloud cover 27).
Average visibility in September
Chain-O-Lakes, MO
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).





