September weather forecastPetrey, AL
September
Weather in September
The first month of the autumn, September, is also a hot month in Petrey, Alabama, with an average temperature fluctuating between 68°F (20°C) and 87.1°F (30.6°C).Temperature
Petrey records an average high-temperature of a still tropical 87.1°F (30.6°C) in September, closely mirroring the climate of the previous month. In Petrey, an average low-temperature of 68°F (20°C) is recorded during September nights.Heat index
For most parts of September, the heat index is estimated at a very hot 100.4°F (38°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.When referencing the heat index, its values are suitable for shady environments and light breezes. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical 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.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
The average relative humidity in September is 74%.Rainfall
In Petrey, in September, during 16.5 rainfall days, 2.48" (63mm) of precipitation is typically accumulated. Throughout the year, there are 175.6 rainfall days, and 35.87" (911mm) of precipitation is accumulated.Snowfall
In Petrey, snow does not fall in March through November.Daylight
In September, the average length of the day in Petrey is 12h and 21min.On the first day of September in Petrey, 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 Petrey, the average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 6 during September translates into the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. 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. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Petrey, AL
- Average high temperature in September: 87.1°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (56.7°F).
- Average low temperature in September: 68°F
The month with the highest average low temperature is August (72.3°F).
The coldest month (with the lowest average low temperature) is January (39.4°F).
Average pressure in September
Petrey, AL
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in September
Petrey, AL
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Petrey, AL
- Average humidity in September: 74%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Petrey, AL
- Average rainfall in September: 2.48"
The wettest month (with the highest rainfall) is August (4.37").
The driest month (with the least rainfall) is November (2.09").
Average rainfall days in September
Petrey, AL
- Average rainfall days in September: 16.5 days
The month with the highest number of rainy days is July (23.4 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in September
Petrey, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.2").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Petrey, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Petrey, AL
- Average daylight in September: 12h and 24min
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 54min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 12min).
Average sunshine days in September
Petrey, AL
- Average sunshine days in September: 12.3 days
The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is July (5.4 days).
Average UV index in September
Petrey, AL
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Petrey, AL
- Average cloud cover in September: 30
The months with the most cloud cover are February and December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility in September
Petrey, AL
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
