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 onset of September notes an average high-temperature of a still tropical 86.9°F (30.5°C), subtly shifted from August's 90.5°F (32.5°C). September generally records an average low-temperature of 67.8°F (19.9°C).Heat index
For most parts of September, the heat index is calculated to be a sweltering 98.6°F (37°C). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.Bear in mind that the heat index values are determined for shaded areas and light breezes. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.
Humidity
The average relative humidity in September is 73%.Rainfall
In Grady, in September, it is raining for 13.7 days, with typically 1.89" (48mm) of accumulated precipitation. Throughout the year, there are 153.1 rainfall days, and 31.46" (799mm) of precipitation is accumulated.Snowfall
April through December are months without snowfall.Daylight
In Grady, the average length of the day in September is 12h and 21min.On the first day of September, sunrise is at 6:20 am and sunset at 7:08 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 6:30 pm CDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: In September, a daily UV index of 6 turns into the following recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Grady have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Grady have in September?
What is the UV index reading in September?
Average temperature in September
Grady, AL
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (55.9°F).
- Average low temperature in September: 67.8°F
The months with the highest average low temperature are July and August (72.1°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).
Average pressure in September
Grady, AL
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Grady, AL
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest months (with the lowest average wind speed) are July and August (5mph).
Average humidity in September
Grady, AL
- Average humidity in September: 73%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Grady, AL
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is August (3.86").
The driest month (with the least rainfall) is October (1.73").
Average rainfall days in September
Grady, AL
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is July (21.2 days).
The month with the least rainy days is November (5.9 days).
Average snowfall in September
Grady, AL
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (0.2").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Grady, AL
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Grady, AL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- 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 December (Average sunshine: 5h and 6min).
Average sunshine days in September
Grady, AL
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is November (22.8 days).
The month with the least sunshine days is July (8 days).
Average UV index in September
Grady, AL
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Grady, AL
- Average cloud cover in September: 32
The month with the most cloud cover is December (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in September
Grady, AL
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Grady, Alabama, USA
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