September weather forecast
Haynes, AL

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Weather in September

September, the first month of the autumn in Haynes, is still a tropical month, with an average temperature fluctuating between 67.1°F (19.5°C) and 86.9°F (30.5°C).

Temperature

Haynes's weather in September indicates an average high-temperature of a still tropical 86.9°F (30.5°C), nearly consistent with the 90.7°F (32.6°C) of August. Haynes experiences an average low-temperature reading of 67.1°F (19.5°C) throughout September.

Heat index

The heat index value during September is evaluated at a sweltering 98.6°F (37°C). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.
The metrics for the heat index are tailored for both shady environments and light winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In Haynes, the average relative humidity in September is 72%.

Rainfall

In Haynes, in September, during 14.3 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. Throughout the year, there are 168.8 rainfall days, and 38.74" (984mm) of precipitation is accumulated.

Snowfall

In Haynes, snow does not fall in April through November.

Daylight

The average length of the day in September is 12h and 22min.
On the first day of September, sunrise is at 6:21 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:32 pm CDT.

Sunshine

In September, the average sunshine is 8.7h.

UV index

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In September, a daily UV index of 6 turns into the following recommendations:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.

Frequently asked questions

Is it hot in Haynes during September?

The high-temperature, in September, in Haynes, records 86.9°F (30.5°C), while the low-temperature is 67.1°F (19.5°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines air temperature and relative humidity, is evaluated at 98.6°F (37°C).

What is the average humidity in September?

In September, the average relative humidity is 72%.

How many days does it rain in September?

In Haynes, in September, during 14.3 rainfall days, 2.32" (59mm) of precipitation is typically accumulated.

When it does not snow?

April through November are months without snowfall.

How many hours of daylight does Haynes have in September?

In Haynes, the average day length in September is 12h and 22min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:21 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:32 pm CDT.

How many hours of sunshine does Haynes have in September?

The average sunshine duration in September is 8.7h.

How high is the UV index in September?

The average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Haynes, AL

Average temperature in September - Haynes, AL
  • Average high temperature in September: 86.9°F

The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (54.3°F).

  • Average low temperature in September: 67.1°F

The month with the highest average low temperature is August (72.1°F).
The coldest month (with the lowest average low temperature) is January (38.3°F).

Average pressure in September
Haynes, AL

Average pressure in September - Haynes, AL
  • Average pressure in September: 30"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).

Average wind speed in September
Haynes, AL

Average wind speed in September - Haynes, AL
  • Average wind speed in September: 5.5mph

The windiest months (with the highest average wind speed) are January and February (7.7mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).

Average humidity in September
Haynes, AL

Average humidity in September - Haynes, AL
  • Average humidity in September: 72%

The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (70%).

Average rainfall in September
Haynes, AL

Average rainfall in September - Haynes, AL
  • Average rainfall in September: 2.32"

The wettest month (with the highest rainfall) is December (4.02").
The driest month (with the least rainfall) is November (2.28").

Average rainfall days in September
Haynes, AL

Average rainfall days in September - Haynes, AL
  • Average rainfall days in September: 14.3 days

The month with the highest number of rainy days is July (21.4 days).
The month with the least rainy days is November (8.1 days).

Average snowfall in September
Haynes, AL

Average snowfall in September - Haynes, AL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Haynes, AL

Average snowfall days in September - Haynes, AL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.6 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
Haynes, AL

Average daylight in September / Average sunshine in September - Haynes, AL
  • 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 0min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in September
Haynes, AL

Average sunshine days in September - Haynes, AL
  • Average sunshine days in September: 13.4 days

The months with the most sunshine days are October and November (20.2 days).
The month with the least sunshine days is July (7.3 days).

Average UV index in September
Haynes, AL

Average UV index in September - Haynes, 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
Haynes, AL

Average cloud cover in September - Haynes, AL
  • Average cloud cover in September: 32

The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 30).

Average visibility in September
Haynes, AL

Average visibility in September - Haynes, 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).

Haynes, Alabama, USA

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