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
The commencement of September indicates a gentle shift in the average high-temperature, receding from August's hot 86.7°F (30.4°C) to a warm 80.8°F (27.1°C). The nights of September in Rio Vista anticipate an average low-temperature of 59.5°F (15.3°C).Heat index
September's average heat index is appraised at 84.2°F (29°C). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.It is emphasized that the heat index's values are meant for shaded zones with mild winds. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Humidity
In Rio Vista, Tennessee, the average relative humidity in September is 75%.Rainfall
The month with the least rainfall is September, when the rain falls for 8.5 days and typically collects 0.47" (12mm) of precipitation.Snowfall
April through September are months without snowfall in Rio Vista.Daylight
In September, the average length of the day is 12h and 23min.On the first day of the month, sunrise is at 7:09 am and sunset at 8:03 pm. On the last day of September, in Rio Vista, sunrise is at 7:31 am and sunset at 7:21 pm EDT.
Sunshine
In September, the average sunshine in Rio Vista is 8.7h.UV index
The average daily maximum UV index in September in Rio Vista, Tennessee, is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The daily maximum UV index of 5 in September interprets into the following advice:
Guard yourself - Precautionary measures against sun damage are advocated. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Frequently asked questions
What is the temperature in September in Rio Vista?
What is the average humidity in September in Rio Vista?
What is the driest month in Rio Vista?
How many days does it rain in September in Rio Vista?
When it does not snow in Rio Vista?
Does it snow in Rio Vista in September?
What is the average length of the day in September in Rio Vista?
When is the sunrise / sunset in September in Rio Vista?
How many hours of sunshine does Rio Vista have in September?
What is the UV index reading in September in Rio Vista?
Average temperature in September
Rio Vista, TN
- Average high temperature in September: 80.8°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (44.8°F).
- Average low temperature in September: 59.5°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in September
Rio Vista, TN
- Average pressure in September: 30.04"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Rio Vista, TN
- Average wind speed in September: 3.9mph
The windiest month (with the highest average wind speed) is April (6.1mph).
The calmest month (with the lowest average wind speed) is August (3.6mph).
Average humidity in September
Rio Vista, TN
- Average humidity in September: 75%
The months with the highest relative humidity are February and December (79%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in September
Rio Vista, TN
- Average rainfall in September: 0.47"
The wettest month (with the highest rainfall) is February (1.3").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in September
Rio Vista, TN
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is July (12.7 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in September
Rio Vista, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in September
Rio Vista, TN
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (3.7 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
Rio Vista, TN
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in September
Rio Vista, TN
- Average sunshine days in September: 19.3 days
The month with the most sunshine days is October (21.5 days).
The months with the least sunshine days are February and July (15.9 days).
Average UV index in September
Rio Vista, TN
- 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
Rio Vista, TN
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in September
Rio Vista, TN
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Rio Vista, Tennessee, USA
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