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
September's advent notes a subtle adjustment in average high-temperature to a warm 83.7°F (28.7°C) from August. In Haleyville, the average low-temperature during the month of September is an enjoyable 64°F (17.8°C).Heat index
During September, the heat index is computed to be a tropical 91.4°F (33°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.In reference to the heat index, it's for places in shade and with a slight wind. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Humidity
In September, the average relative humidity is 74%.Rainfall
In Haleyville, in September, during 14 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. Throughout the year, there are 174.6 rainfall days, and 42.8" (1087mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Haleyville, the average length of the day in September is 12h and 22min.On the first day of September in Haleyville, sunrise is at 6:24 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:35 pm CDT.
Sunshine
The average sunshine in September is 9h.UV index
In Haleyville, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Haleyville during 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 Haleyville?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Haleyville, AL
- Average high temperature in September: 83.7°F
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (48.7°F).
- Average low temperature in September: 64°F
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (34°F).
Average pressure in September
Haleyville, AL
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in September
Haleyville, AL
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in September
Haleyville, AL
- Average humidity in September: 74%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Haleyville, AL
- Average rainfall in September: 2.68"
The wettest month (with the highest rainfall) is December (4.45").
The driest month (with the least rainfall) is November (2.4").
Average rainfall days in September
Haleyville, AL
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is November (10.3 days).
Average snowfall in September
Haleyville, AL
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Haleyville, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.1 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
Haleyville, 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: 9h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).
Average sunshine days in September
Haleyville, AL
- Average sunshine days in September: 13.2 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is August (9.3 days).
Average UV index in September
Haleyville, AL
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Haleyville, AL
- Average cloud cover in September: 30
The months with the most cloud cover are February and December (Cloud cover 49).
The months with the least cloud cover are June and September (Cloud cover 30).
Average visibility in September
Haleyville, AL
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, May and July (5mi).
Haleyville, Alabama, USA
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