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 transition into September is marked with an average high-temperature of a moderately hot 81.3°F (27.4°C), showing an insignificant shift from August's 86.5°F (30.3°C). In Grady, the nighttime temperature registers a significant drop from daytime peaks to an average of 59.5°F (15.3°C) in September.Heat index
September's heat index is calculated to be a hot 86°F (30°C). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.Bear in mind that the heat index values are determined for shaded areas and light breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Humidity
The average relative humidity in September is 76%.Rainfall
September and November are months with the least rain when the rain falls for 12.7 days and typically aggregates up to 1.89" (48mm) of rain.Snowfall
May through October are months without snowfall.Daylight
In Grady, the average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 7:11 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:22 pm EDT.
Sunshine
In Grady, the average sunshine in September is 8.6h.UV index
In Grady, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Frequently asked questions
What are September temperatures in Grady?
What is the average humidity in September in Grady?
What is the driest month in Grady?
How many days does it rain in September in Grady?
When it does not snow in Grady?
What is the average length of the day in September in Grady?
What time are sunrise and sunset in September in Grady?
How many hours of sunshine does Grady have in September?
How high is the UV index in September in Grady?
Average temperature in September
Grady, TN
- Average high temperature in September: 81.3°F
The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (46°F).
- Average low temperature in September: 59.5°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in September
Grady, 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
Grady, TN
- Average wind speed in September: 4.2mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).
Average humidity in September
Grady, TN
- Average humidity in September: 76%
The month with the highest relative humidity is December (79%).
The months with the lowest relative humidity are August, October and November (75%).
Average rainfall in September
Grady, TN
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is July (3.94").
The driest months (with the least rainfall) are September and November (1.89").
Average rainfall days in September
Grady, TN
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in September
Grady, TN
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.83").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Grady, TN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.6 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
Grady, 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 30min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).
Average sunshine days in September
Grady, TN
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (10.4 days).
Average UV index in September
Grady, 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
Grady, TN
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in September
Grady, TN
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Grady, Tennessee, USA
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