September weather forecast
Theo, AL

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Weather in September

The first month of the autumn, September, is still a hot month in Theo, Alabama, with temperature in the range of an average low of 67.1°F (19.5°C) and an average high of 87.1°F (30.6°C).

Temperature

Welcoming September, Theo notes an average high-temperature of a still hot 87.1°F (30.6°C), nearly consistent with August's 91.4°F (33°C). Theo's nights in September experience an average temperature drop to an enjoyable 67.1°F (19.5°C).

Heat index

The heat index value during September is appraised at a fiery hot 98.6°F (37°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', binds temperature metrics with humidity values to give a sense of the actual warmth. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
The body's innate mechanism to counteract overheating is through perspiration, as it leverages the cooling effects of sweat evaporation. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

In September, the average relative humidity is 71%.

Rainfall

September is the month with the least rainfall. Rain falls for 13.4 days and accumulates 1.97" (50mm) of precipitation.

Snowfall

In Theo, snow does not fall in March through October.

Daylight

The average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 6:23 am and sunset at 7:13 pm. On the last day of September, sunrise is at 6:42 am and sunset at 6:34 pm CDT.

Sunshine

In Theo, the average sunshine in September is 9.2h.

UV index

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 6 suggests this advice:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during September?

An average high-temperature, in September, in Theo, is 87.1°F (30.6°C) and the average low-temperature is 67.1°F (19.5°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, is appraised at 98.6°F (37°C).

What is the average humidity in September?

In September, the average relative humidity is 71%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 13.4 days and accumulates 1.97" (50mm) of precipitation.

How many days does it rain in September?

In Theo, in September, during 13.4 rainfall days, 1.97" (50mm) of precipitation is typically accumulated.

When it does not snow?

March through October are months without snowfall.

What is the average length of the day in September?

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

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:23 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:34 pm CDT.

How many hours of sunshine does Theo have in September?

In Theo, the average sunshine duration in September is 9.2h.

What is the UV index intensity in September?

In Theo, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
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
Theo, AL

Average temperature in September - Theo, AL
  • Average high temperature in September: 87.1°F

The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (53.8°F).

  • Average low temperature in September: 67.1°F

The month with the highest average low temperature is August (72°F).
The coldest month (with the lowest average low temperature) is January (38.1°F).

Average pressure in September
Theo, AL

Average pressure in September - Theo, 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 (29.97"Hg).

Average wind speed in September
Theo, AL

Average wind speed in September - Theo, AL
  • Average wind speed in September: 5.3mph

The windiest month (with the highest average wind speed) is February (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.7mph).

Average humidity in September
Theo, AL

Average humidity in September - Theo, AL
  • Average humidity in September: 71%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (69%).

Average rainfall in September
Theo, AL

Average rainfall in September - Theo, AL
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is April (3.94").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in September
Theo, AL

Average rainfall days in September - Theo, AL
  • Average rainfall days in September: 13.4 days

The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is November (8.3 days).

Average snowfall in September
Theo, AL

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

The month with the highest snowfall is January (0.39").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").

Average snowfall days in September
Theo, AL

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

The month with the highest number of snowfall days is January (1.1 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
Theo, AL

Average daylight in September / Average sunshine in September - Theo, 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: 9h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 5h and 0min).

Average sunshine days in September
Theo, AL

Average sunshine days in September - Theo, AL
  • Average sunshine days in September: 14.1 days

The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is July (8.1 days).

Average UV index in September
Theo, AL

Average UV index in September - Theo, AL
  • Average UV index in September: 6

The months with the highest UV index are 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
Theo, AL

Average cloud cover in September - Theo, AL
  • Average cloud cover in September: 29

The month with the most cloud cover is December (Cloud cover 47).
The months with the least cloud cover are September and October (Cloud cover 29).

Average visibility in September
Theo, AL

Average visibility in September - Theo, 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).

Theo, Alabama, USA

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