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 signifies a gentle decline in Greenville's average high-temperature, easing from a tropical 87.4°F (30.8°C) in August to a warm 81.7°F (27.6°C). Greenville records a mean low-temperature of 61.9°F (16.6°C) in September.Heat index
The heat index value during September is estimated at a hot 86°F (30°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.When referencing the heat index, its values are suitable for shady environments and light breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Humidity
In Greenville, the average relative humidity in September is 73%.Rainfall
The month with the least rainfall in Greenville is September, when the rain falls for 11.8 days and typically collects 1.77" (45mm) of precipitation.Snowfall
April through September are months without snowfall.Daylight
In Greenville, Missouri, the average length of the day in September is 12h and 25min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:29 pm. On the last day of September, in Greenville, sunrise is at 6:56 am and sunset at 6:46 pm CDT.
Sunshine
In Greenville, Missouri, the average sunshine in September is 9.7h.UV index
In Greenville, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum daily UV index of 5 during September morphs into the following directions:
Undertake precautions - It is suggested to shield oneself from sunburn. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Enhance your sun protection with tightly woven, yet airy clothing.
Frequently asked questions
What is the average September temperature in Greenville?
What is the average humidity in September in Greenville?
What is the driest month in Greenville?
How much does it rain in Greenville in September?
When it does not snow in Greenville?
Does it snow in Greenville in September?
What is the average length of the day in September in Greenville?
When is the sunrise / sunset in September in Greenville?
How long on average sun shines in September in Greenville?
What is the UV index reading in September in Greenville?
Average temperature in September
Greenville, MO
- Average high temperature in September: 81.7°F
The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is January (42.1°F).
- Average low temperature in September: 61.9°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (28°F).
Average pressure in September
Greenville, MO
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Greenville, MO
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is February (8.7mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Greenville, MO
- Average humidity in September: 73%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Greenville, MO
- Average rainfall in September: 1.77"
The wettest month (with the highest rainfall) is April (4.8").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in September
Greenville, MO
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (9.6 days).
Average snowfall in September
Greenville, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.69").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in September
Greenville, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Greenville, MO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 9h and 4min
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 48min).
Average sunshine days in September
Greenville, MO
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in September
Greenville, 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 and December (UV index 2).
Average cloud cover in September
Greenville, MO
- Average cloud cover in September: 28
The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 26).
Average visibility in September
Greenville, 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).
Greenville, Missouri, USA
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