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
During September, Napier Field records an average high-temperature of a still hot 86.9°F (30.5°C), marking a slight divergence from August's 90.1°F (32.3°C). An average minimum temperature of 69.6°F (20.9°C) is recorded during the month of September.Heat index
The heat index value for September is evaluated at a torrid 98.6°F (37°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.Heat index's context suggests values are appropriate for shady areas and slight breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', quantifies the warmth felt when relative humidity is considered. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via 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-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.
Humidity
In September, the average relative humidity in Napier Field, Alabama, is 73%.Rainfall
In Napier Field, Alabama, during September, the rain falls for 13.7 days and regularly aggregates up to 1.38" (35mm) of precipitation. In Napier Field, Alabama, during the entire year, the rain falls for 151.6 days and collects up to 23.27" (591mm) of precipitation.Snowfall
In Napier Field, snow does not fall in April through December.Daylight
In Napier Field, the average length of the day in September is 12h and 21min.On the first day of September, sunrise is at 6:18 am and sunset at 7:04 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 6:27 pm CDT.
Sunshine
The average sunshine in September is 8.8h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Frequently asked questions
How hot is it in Napier Field in September?
What is the average humidity in September in Napier Field?
How many days does it rain in September in Napier Field?
When it does not snow in Napier Field?
What is the average length of the day in September in Napier Field?
When are sunrise and sunset in September in Napier Field?
How long on average sun shines in September in Napier Field?
How high is the UV index in September in Napier Field?
Average temperature in September
Napier Field, AL
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (57.7°F).
- Average low temperature in September: 69.6°F
The months with the highest average low temperature are July and August (73.6°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).
Average pressure in September
Napier Field, 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 (29.98"Hg).
Average wind speed in September
Napier Field, AL
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in September
Napier Field, AL
- Average humidity in September: 73%
The months with the highest relative humidity are August and December (75%).
The months with the lowest relative humidity are May and October (69%).
Average rainfall in September
Napier Field, AL
- Average rainfall in September: 1.38"
The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is November (1.22").
Average rainfall days in September
Napier Field, AL
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is August (20.7 days).
The month with the least rainy days is November (7.2 days).
Average snowfall in September
Napier Field, AL
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.16").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Napier Field, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (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
Napier Field, AL
- Average daylight in September: 12h and 2min
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 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).
Average sunshine days in September
Napier Field, AL
- Average sunshine days in September: 13.4 days
The months with the most sunshine days are October and November (21.1 days).
The month with the least sunshine days is August (7.2 days).
Average UV index in September
Napier Field, AL
- Average UV index in September: 6
The months with the highest UV index are May, 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
Napier Field, AL
- Average cloud cover in September: 29
The months with the most cloud cover are February and December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility in September
Napier Field, AL
- 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).
Napier Field, Alabama, USA
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