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 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
At the start of September, Hartford's average high-temperature reaches a still tropical 86.9°F (30.5°C), subtly different from the preceding month. Throughout September, Hartford witnesses a nighttime temperature average of 69.6°F (20.9°C).Heat index
During September, the heat index is estimated at a very hot 100.4°F (38°C). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.Factoring in the heat index, values are geared towards shaded areas with light breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.
Humidity
In Hartford, the average relative humidity in September is 75%.Rainfall
The month with the least rainfall is September, when the rain falls for 8.6 days and typically collects 0.28" (7mm) of precipitation.Daylight
In Hartford, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:19 am and sunset at 7:05 pm. On the last day of September, sunrise is at 6:36 am and sunset at 6:28 pm CDT.
Sunshine
The average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum UV index of 6 in September translates into the following recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Hartford have in September?
How high is the UV index in September?
Average temperature in September
Hartford, AL
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (58.8°F).
- Average low temperature in September: 69.6°F
The month with the highest average low temperature is August (74.1°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).
Average pressure in September
Hartford, AL
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in September
Hartford, AL
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are January, February and March (7.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Hartford, AL
- Average humidity in September: 75%
The months with the highest relative humidity are August and December (76%).
The months with the lowest relative humidity are May and October (70%).
Average rainfall in September
Hartford, AL
- Average rainfall in September: 0.28"
The wettest month (with the highest rainfall) is August (0.98").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in September
Hartford, AL
- Average rainfall days in September: 8.6 days
The months with the highest number of rainy days are July and August (13.3 days).
The month with the least rainy days is November (4.7 days).
Average daylight in September /
Average sunshine in September
Hartford, AL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).
Average sunshine days in September
Hartford, AL
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is November (24.4 days).
The month with the least sunshine days is July (13.2 days).
Average UV index in September
Hartford, AL
- Average UV index in September: 6
The months with the highest UV index are May, 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
Hartford, AL
- Average cloud cover in September: 29
The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is October (Cloud cover 26).
Average visibility in September
Hartford, 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).
Hartford, Alabama, USA
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