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's average high-temperature stands at a moderately hot 81.7°F (27.6°C), showing little deviation from August's 86.2°F (30.1°C). Throughout September, the nighttime temperature in Three States averages to a refreshing 62.2°F (16.8°C).Heat index
Throughout September, the heat index is computed to be a hot 86°F (30°C). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.Remember that heat index calculations are made for conditions in the shade with light wind. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
Humidity
The average relative humidity in September is 73%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.1 days and typically collects 1.54" (39mm) of precipitation.Snowfall
April through October are months without snowfall in Three States, Missouri.Daylight
In September, the average length of the day is 12h and 24min.On the first day of September in Three States, sunrise is at 6:28 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:41 pm CDT.
Sunshine
The average sunshine in September in Three States, Missouri, is 9.5h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, an average UV index of 5 transforms into the following instructions:
Take precautions - Protection against sunburn is recommended. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Three States?
What is the average humidity in September in Three States?
What is the driest month in Three States?
How much does it rain in Three States in September?
When it does not snow in Three States?
What is the average length of the day in September in Three States?
When is the sunrise / sunset in September in Three States?
How long on average sun shines in September in Three States?
What is the UV index reading in September in Three States?
Average temperature in September
Three States, MO
- Average high temperature in September: 81.7°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (42.8°F).
- Average low temperature in September: 62.2°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in September
Three States, 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 (29.94"Hg).
Average wind speed in September
Three States, MO
- Average wind speed in September: 6.4mph
The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in September
Three States, MO
- Average humidity in September: 73%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Three States, MO
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is April (4.53").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in September
Three States, MO
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is November (10.1 days).
Average snowfall in September
Three States, MO
- Average snowfall in September: 0"
The months with the highest snowfall are February and March (1.54").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Three States, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Three States, 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 3min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Three States, MO
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is April (12.2 days).
Average UV index in September
Three States, 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
Three States, MO
- Average cloud cover in September: 27
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 25).
Average visibility in September
Three States, 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).
Three States, Missouri, USA
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