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 transition into September shows a subtle variation to a moderately hot 83.5°F (28.6°C) from August's 88.7°F (31.5°C) in the average high-temperature. Gnatville in September experiences a low-temperature average of 63.3°F (17.4°C).Heat index
The heat index value for September is computed to be a hot 91.4°F (33°C). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Humidity
In Gnatville, the average relative humidity in September is 75%.Rainfall
In September, the rain falls for 11.5 days. Throughout September, 1.54" (39mm) of precipitation is accumulated. Throughout the year, there are 154.5 rainfall days, and 25.04" (636mm) of precipitation is accumulated.Snowfall
April through November are months without snowfall.Daylight
The average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:16 am and sunset at 7:08 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 6:27 pm CDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 5 during September translates into the following directions:
Exercise prevention - Warding off sunburn is urged. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September in Gnatville?
When are sunrise and sunset in September?
How many hours of sunshine does Gnatville have in September?
What is the UV index intensity in September?
Average temperature in September
Gnatville, AL
- Average high temperature in September: 83.5°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (49.8°F).
- Average low temperature in September: 63.3°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (33.8°F).
Average pressure in September
Gnatville, AL
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Gnatville, AL
- Average wind speed in September: 4.5mph
The windiest month (with the highest average wind speed) is February (7.2mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in September
Gnatville, AL
- Average humidity in September: 75%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Gnatville, AL
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is August (2.56").
The driest month (with the least rainfall) is October (1.38").
Average rainfall days in September
Gnatville, AL
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is November (7.9 days).
Average snowfall in September
Gnatville, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Gnatville, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Gnatville, AL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Gnatville, AL
- Average sunshine days in September: 16.4 days
The months with the most sunshine days are October and November (20.1 days).
The month with the least sunshine days is July (8.9 days).
Average UV index in September
Gnatville, AL
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Gnatville, AL
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in September
Gnatville, 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).
Gnatville, Alabama, USA
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