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 reports an average high-temperature of a moderately hot 81.7°F (27.6°C), slightly varied from August's 86.9°F (30.5°C). During the month of September, Terrell experiences a steady low-temperature average of 62.4°F (16.9°C).Heat index
September's average heat index is evaluated at a tropical 86°F (30°C). Exhaustion becomes probable with enduring exposure and activity, potentially causing heat cramps.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a composite of temperature and humidity figures to convey how warm it feels. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly meaningful for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humidity
The average relative humidity in September in Terrell is 73%.Rainfall
The month with the least rainfall in Terrell is September, when the rain falls for 11.4 days and typically collects 1.38" (35mm) of precipitation.Snowfall
April through October are months without snowfall in Terrell.Daylight
The average length of the day in September in Terrell is 12h and 24min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:23 pm. On the last day of September, in Terrell, sunrise is at 6:50 am and sunset at 6:40 pm CDT.
Sunshine
In September, the average sunshine in Terrell is 9.5h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
What is the usual temperature for Terrell in September?
What is the average humidity in September in Terrell?
What is the driest month in Terrell?
How many days does it rain in September in Terrell?
When it does not snow in Terrell?
How many hours of daylight does Terrell have in September?
When are sunrise and sunset in September in Terrell?
How long on average sun shines in September in Terrell?
What is the UV index reading in September in Terrell?
Average temperature in September
Terrell, TN
- Average high temperature in September: 81.7°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (43.3°F).
- Average low temperature in September: 62.4°F
The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).
Average pressure in September
Terrell, 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 (29.95"Hg).
Average wind speed in September
Terrell, TN
- Average wind speed in September: 6.2mph
The windiest months (with the highest average wind speed) are January, February and April (9.1mph).
The calmest month (with the lowest average wind speed) is July (5.5mph).
Average humidity in September
Terrell, TN
- 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 (70%).
Average rainfall in September
Terrell, TN
- Average rainfall in September: 1.38"
The wettest month (with the highest rainfall) is February (4.09").
The driest month (with the least rainfall) is September (1.38").
Average rainfall days in September
Terrell, TN
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in September
Terrell, TN
- Average snowfall in September: 0"
The month with the highest snowfall is March (1.34").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Terrell, TN
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (3.4 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
Terrell, TN
- 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 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Terrell, TN
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11.9 days).
Average UV index in September
Terrell, 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
Terrell, TN
- 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 26).
Average visibility in September
Terrell, 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).
Terrell, Tennessee, USA
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