September weather forecastSummer Haven, TN
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Summer Haven, Tennessee, with an average temperature ranging between min 61.3°F (16.3°C) and max 82.6°F (28.1°C).Temperature
Summer Haven's average high-temperature marks a moderately hot 82.6°F (28.1°C) with the advent of September, closely mirroring that of the preceding month. During September, the average low-temperature is recorded at a comfortable 61.3°F (16.3°C).Heat index
In September, the average heat index is evaluated at a hot 89.6°F (32°C). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.Factoring in the heat index, values are geared towards shaded areas with light breezes. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', gives an indication of how one might feel in terms of heat after considering humidity. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
Humidity
The average relative humidity in September is 75%.Rainfall
September is the month with the least rainfall. Rain falls for 11.9 days and accumulates 2.05" (52mm) of precipitation.Snowfall
In Summer Haven, snow does not fall in May through October.Daylight
In Summer Haven, Tennessee, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 7:13 am and sunset at 8:06 pm. On the last day of September, sunrise is at 7:34 am and sunset at 7:25 pm EDT.
Sunshine
The average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 5 translates into these guidelines:
Adopt protective measures - Suggestions to resist sunburn are offered. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Summer Haven, TN
- Average high temperature in September: 82.6°F
The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (46.8°F).
- Average low temperature in September: 61.3°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in September
Summer Haven, TN
- Average pressure in September: 30.03"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
Summer Haven, TN
- Average wind speed in September: 4.2mph
The windiest month (with the highest average wind speed) is February (6.8mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in September
Summer Haven, TN
- Average humidity in September: 75%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are June, August and October (74%).
Average rainfall in September
Summer Haven, TN
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is February (3.62").
The driest month (with the least rainfall) is September (2.05").
Average rainfall days in September
Summer Haven, TN
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in September
Summer Haven, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.87").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Summer Haven, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.2 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
Summer Haven, TN
- Average daylight in September: 12h and 24min
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 30min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Summer Haven, TN
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in September
Summer Haven, 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 and December (UV index 2).
Average cloud cover in September
Summer Haven, TN
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in September
Summer Haven, TN
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, May and December (5mi).
