Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September brings a slight decrease in temperature, down from a tropical 87.6°F (30.9°C) in August to a warm 80.2°F (26.8°C). In Stella, the September nights cool down to an average low of 61°F (16.1°C).Humidity
In September, the average relative humidity is 74%.Rainfall
In Stella, Missouri, in September, it is raining for 12.7 days, with typically 2.36" (60mm) of accumulated precipitation. In Stella, during the entire year, the rain falls for 151.1 days and collects up to 33.5" (851mm) of precipitation.Snowfall
In Stella, Missouri, snow does not fall in June through September.Daylight
In September, the average length of the day in Stella, Missouri, is 12h and 24min.On the first day of the month, sunrise is at 6:48 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:11 am and sunset at 7:01 pm CDT.
Sunshine
In September, the average sunshine in Stella is 9.4h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Frequently asked questions
What is the average September temperature in Stella?
What is the average humidity in September in Stella?
How much does it rain in Stella in September?
When it does not snow in Stella?
Does it snow in Stella in September?
How many hours of daylight does Stella have in September?
When are sunrise and sunset in September in Stella?
How many hours of sunshine does Stella have in September?
What is the UV index intensity in September in Stella?
Average temperature in September
Stella, MO
- Average high temperature in September: 80.2°F
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (43°F).
- Average low temperature in September: 61°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).
Average pressure in September
Stella, 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 (29.92"Hg).
Average wind speed in September
Stella, MO
- Average wind speed in September: 7.3mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in September
Stella, MO
- Average humidity in September: 74%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are July, August and October (72%).
Average rainfall in September
Stella, MO
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is May (5.35").
The driest month (with the least rainfall) is February (1.77").
Average rainfall days in September
Stella, MO
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is December (8.2 days).
Average snowfall in September
Stella, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Stella, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Stella, MO
- Average daylight in September: 12h and 2min
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 2min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in September
Stella, MO
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is December (19.2 days).
The month with the least sunshine days is May (10.2 days).
Average UV index in September
Stella, MO
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Stella, MO
- Average cloud cover in September: 28
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in September
Stella, 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).
Stella, Missouri, USA
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