September weather forecastCastleberry, AL
September
Weather in September
The first month of the autumn, September, is still a hot month in Castleberry, Alabama, with an average temperature varying between 68°F (20°C) and 87.4°F (30.8°C).Temperature
Stepping into September, Castleberry records an average high-temperature of a still hot 87.4°F (30.8°C), almost consistent with August. Castleberry registers a consistent average low-temperature of 68°F (20°C) during September.Heat index
September's mean heat index is evaluated at a fiery hot 102.2°F (39°C). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.Be informed that the heat index values are oriented around shady conditions and gentle breezes. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.
Humidity
In Castleberry, the average relative humidity in September is 75%.Rainfall
In Castleberry, during September, the rain falls for 16.6 days and regularly aggregates up to 2.72" (69mm) of precipitation. In Castleberry, during the entire year, the rain falls for 176.5 days and collects up to 37.72" (958mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In September, the average length of the day is 12h and 21min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:11 pm. On the last day of September, sunrise is at 6:41 am and sunset at 6:34 pm CDT.
Sunshine
The average sunshine in September is 8.8h.UV index
In Castleberry, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A maximum UV index of 6 in September translates into the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Castleberry, AL
- Average high temperature in September: 87.4°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (57.6°F).
- Average low temperature in September: 68°F
The months with the highest average low temperature are July and August (72.3°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).
Average pressure in September
Castleberry, AL
- Average pressure in September: 29.98"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
Castleberry, AL
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is March (6.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).
Average humidity in September
Castleberry, AL
- Average humidity in September: 75%
The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Castleberry, AL
- Average rainfall in September: 2.72"
The wettest month (with the highest rainfall) is August (4.72").
The driest month (with the least rainfall) is November (2.13").
Average rainfall days in September
Castleberry, AL
- Average rainfall days in September: 16.6 days
The month with the highest number of rainy days is July (23.9 days).
The month with the least rainy days is November (7.6 days).
Average snowfall in September
Castleberry, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.28").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Castleberry, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Castleberry, AL
- Average daylight in September: 12h and 18min
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 12min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Castleberry, AL
- Average sunshine days in September: 11.4 days
The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is July (5.1 days).
Average UV index in September
Castleberry, 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
Castleberry, AL
- Average cloud cover in September: 33
The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in September
Castleberry, AL
- Average visibility in September: 5mi
The months with the highest visibility are June and October (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September, November and December (5mi).
