September weather forecastTrimble, TN
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Trimble, Tennessee, with an average temperature fluctuating between 63.3°F (17.4°C) and 81.9°F (27.7°C).Temperature
September registers an average high-temperature of a warm 81.9°F (27.7°C), slightly varied from August's 86.5°F (30.3°C). Trimble's average low-temperature in September is measured at a refreshing 63.3°F (17.4°C).Heat index
The heat index value during September is evaluated at a tropical 86°F (30°C). With unrelenting exposure and activity, one might experience exhaustion, leading to potential heat cramps.Evaluating the heat index requires understanding its values in the shade and with gentle winds. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'real feel', is found by incorporating humidity levels into the air temperature measurement. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Humidity
In Trimble, the average relative humidity in September is 73%.Rainfall
September is the month with the least rainfall. Rain falls for 12.4 days and accumulates 1.61" (41mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Trimble, the average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 6:28 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:41 pm CDT.
Sunshine
In September, the average sunshine is 9.7h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: The UV index of 5 during September leads to these advisories:
Heed the precautions - Suggestions to avoid sunburn are made. It's recommended to limit sun exposure when its radiation is at its peak during midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Trimble, TN
- Average high temperature in September: 81.9°F
The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (43.9°F).
- Average low temperature in September: 63.3°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 (30.6°F).
Average pressure in September
Trimble, TN
- 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
Trimble, TN
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is February (9.6mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).
Average humidity in September
Trimble, TN
- Average humidity in September: 73%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Trimble, TN
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is April (4.45").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in September
Trimble, TN
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is May (17.1 days).
The months with the least rainy days are October and November (10.4 days).
Average snowfall in September
Trimble, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Trimble, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Trimble, TN
- Average daylight in September: 12h and 24min
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 42min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Trimble, TN
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is May (12.2 days).
Average UV index in September
Trimble, TN
- Average UV index in September: 5
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are February and December (UV index 2).
Average cloud cover in September
Trimble, TN
- Average cloud cover in September: 26
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 24).
Average visibility in September
Trimble, TN
- 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).
