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 commencement of September records an average high-temperature of a moderately hot 85.1°F (29.5°C), barely varying from August's 89.6°F (32°C). Allentown experiences an average low-temperature reading of 67.5°F (19.7°C) throughout September.Heat index
During September, the heat index is estimated at a torrid 95°F (35°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.Take note of the fact that heat index values are based on shaded circumstances with light airflows. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
In Allentown, the average relative humidity in September is 73%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.6 days and typically collects 1.54" (39mm) of precipitation.Snowfall
In Allentown, snow does not fall in April through December.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 7:08 am and sunset at 7:57 pm. On the last day of September, sunrise is at 7:26 am and sunset at 7:18 pm EDT.
Sunshine
In Allentown, the average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
How hot is it in Allentown in September?
What is the average humidity in September in Allentown?
What is the driest month in Allentown?
How much does it rain in Allentown in September?
When it does not snow in Allentown?
How many hours of daylight does Allentown have in September?
When is the sunrise / sunset in September in Allentown?
How many hours of sunshine does Allentown have in September?
What is the UV index intensity in September in Allentown?
Average temperature in September
Allentown, GA
- Average high temperature in September: 85.1°F
The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (54.9°F).
- Average low temperature in September: 67.5°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).
Average pressure in September
Allentown, GA
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Allentown, GA
- Average wind speed in September: 5.8mph
The windiest months (with the highest average wind speed) are January and February (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Allentown, GA
- Average humidity in September: 73%
The month with the highest relative humidity is December (76%).
The months with the lowest relative humidity are January, October and November (71%).
Average rainfall in September
Allentown, GA
- Average rainfall in September: 1.54"
The wettest months (with the highest rainfall) are August and December (2.8").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in September
Allentown, GA
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is November (7.4 days).
Average snowfall in September
Allentown, GA
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.24").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Allentown, GA
- 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
Allentown, GA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
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 July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Allentown, GA
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is July (9.6 days).
Average UV index in September
Allentown, GA
- 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
Allentown, GA
- Average cloud cover in September: 31
The month with the most cloud cover is December (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility in September
Allentown, GA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Allentown, Georgia, USA
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