September weather forecastTroy, AL
September
Weather in September
As summer winds down, September offers mild weather in Troy, Alabama. Transitioning from the high summer temperatures, the city welcomes the autumn season with open arms. While retaining the heat of the summer, it blends with the refreshing coolness of the approaching fall. The most evident factor of the month is the remarkable decrease in rainfall to 1.89" (48mm) from the previous month. Even though the weather remains fairly bright and warm, the gradual drop in temperature is a gentle reminder of the setting autumn.Temperature
The arrival of September sees an average high-temperature of a still tropical 86.9°F (30.5°C), hardly diverging from August's 90.5°F (32.5°C). In Troy, September nights cool down to an average of 67.8°F (19.9°C).Heat index
In September, the heat index is computed to be a sweltering 98.6°F (37°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.One should consider that heat index numbers are for shaded settings and light wind. 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 'real feel' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. 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 highly critical to babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. 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 September, the rain falls for 13.7 days. Throughout September, 1.89" (48mm) of precipitation is accumulated. In Troy, during the entire year, the rain falls for 153.1 days and collects up to 31.46" (799mm) of precipitation.Snowfall
April through December are months without snowfall.Daylight
In Troy, Alabama, the average length of the day in September is 12h and 21min.On the first day of the month, sunrise is at 6:19 am and sunset at 7:07 pm. On the last day of September, sunrise is at 6:37 am and sunset at 6:29 pm CDT.
Sunshine
The average sunshine in September 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 threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 6 during September translates into the following guidance:
Ward off overexposure. Defence against solar harm is crucial. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Troy, 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
Troy, 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
Troy, 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
Troy, 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
Troy, 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
Troy, 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
Troy, 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
Troy, 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
Troy, 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 42min
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
Troy, 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
Troy, 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
Troy, 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
Troy, 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).
