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 shift from August to September is characterized by an average high-temperature of a still hot 87.1°F (30.6°C), not significantly different from the 91.4°F (33°C) of August. In September, in Zimmerman, Alabama, the average low-temperature is a comfortable 67.1°F (19.5°C).Heat index
In September, the heat index is calculated to be a very hot 98.6°F (37°C). Incorporate special precautions, risk of heat exhaustion and heat cramps is substantial. Sustained activity could cause heatstroke.Keep in mind the heat index values are meant for areas in shade and with light wind. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.
Humidity
In September, the average relative humidity in Zimmerman is 71%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.4 days and typically collects 1.97" (50mm) of precipitation.Snowfall
In Zimmerman, snow does not fall in March through October.Daylight
In September, the average length of the day is 12h and 22min.On the first day of the month, sunrise is at 6:24 am and sunset at 7:13 pm. On the last day of September, sunrise is at 6:43 am and sunset at 6:35 pm CDT.
Sunshine
In September, the average sunshine in Zimmerman is 9.2h.UV index
In Zimmerman, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 6 translates into these guidelines:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Frequently asked questions
How hot is it in Zimmerman in September?
What is the average humidity in September in Zimmerman?
What is the driest month in Zimmerman?
How many days does it rain in September in Zimmerman?
When it does not snow in Zimmerman?
How many hours of daylight does Zimmerman have in September?
What time are sunrise and sunset in September in Zimmerman?
How long on average sun shines in September in Zimmerman?
How high is the UV index in September in Zimmerman?
Average temperature in September
Zimmerman, 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
Zimmerman, 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
Zimmerman, 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
Zimmerman, 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
Zimmerman, 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
Zimmerman, 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
Zimmerman, 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
Zimmerman, 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
Zimmerman, 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
Zimmerman, 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
Zimmerman, 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
Zimmerman, 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
Zimmerman, 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).
Zimmerman, Alabama, USA
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