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
Jemison experiences a recorded average high-temperature of a still tropical 86°F (30°C) in September, closely aligned with August's 90.1°F (32.3°C). Jemison, in September, observes a steady average low-temperature of 66.7°F (19.3°C).Heat index
September's mean heat index is computed to be a sweltering 96.8°F (36°C). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.Heat index's context suggests values are appropriate for shady areas and slight breezes. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', ties air temperature with relative humidity to produce the perceived temperature sensation. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
The average relative humidity in September is 73%.Rainfall
The month with the least rainfall is September, when the rain falls for 14.1 days and typically collects 2.17" (55mm) of precipitation.Snowfall
In Jemison, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 22min.On the first day of September, sunrise is at 6:22 am and sunset at 7:11 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 8.8h.UV index
In Jemison, Alabama, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 6 in September leads to these guidelines:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Jemison have in September?
When are sunrise and sunset in September in Jemison?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Jemison, AL
- Average high temperature in September: 86°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (52.9°F).
- Average low temperature in September: 66.7°F
The months with the highest average low temperature are July and August (71.2°F).
The coldest month (with the lowest average low temperature) is January (37°F).
Average pressure in September
Jemison, AL
- Average pressure in September: 30"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
Jemison, AL
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is February (7.6mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).
Average humidity in September
Jemison, AL
- Average humidity in September: 73%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Jemison, AL
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is April (3.86").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in September
Jemison, AL
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is July (21.1 days).
The month with the least rainy days is November (7.9 days).
Average snowfall in September
Jemison, AL
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Jemison, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.9 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
Jemison, 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 5min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Jemison, AL
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is July (7.8 days).
Average UV index in September
Jemison, AL
- Average UV index in September: 6
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Jemison, AL
- Average cloud cover in September: 30
The months with the most cloud cover are February and December (Cloud cover 46).
The months with the least cloud cover are September and October (Cloud cover 30).
Average visibility in September
Jemison, 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).
Jemison, Alabama, USA
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