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
Richmond's shift into September sets the average high-temperature at a still hot 88.3°F (31.3°C), a figure that deviates only slightly from August's 92.7°F (33.7°C). In Richmond, an average temperature of 67.5°F (19.7°C) is noted during September nights.Heat index
For September, the heat index is computed to be a fiery hot 102.2°F (39°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. 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 extremely significant for babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.
Humidity
In Richmond, Alabama, the average relative humidity in September is 73%.Rainfall
In Richmond, in September, it is raining for 15.7 days, with typically 2.44" (62mm) of accumulated precipitation. In Richmond, during the entire year, the rain falls for 171.5 days and collects up to 35.47" (901mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In September, the average length of the day in Richmond, Alabama, is 12h and 21min.On the first day of the month, sunrise is at 6:23 am and sunset at 7:12 pm. On the last day of September, in Richmond, sunrise is at 6:41 am and sunset at 6:33 pm CDT.
Sunshine
In Richmond, the average sunshine in September is 8.8h.UV index
In Richmond, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Frequently asked questions
How hot is September in Richmond?
What is the average humidity in September in Richmond?
How much does it rain in Richmond in September?
When it does not snow in Richmond?
How many hours of daylight does Richmond have in September?
When is the sunrise / sunset in September in Richmond?
How many hours of sunshine does Richmond have in September?
What is the UV index reading in September in Richmond?
Average temperature in September
Richmond, AL
- Average high temperature in September: 88.3°F
The warmest month (with the highest average high temperature) is July (93.2°F).
The month with the lowest average high temperature is January (55.9°F).
- Average low temperature in September: 67.5°F
The months with the highest average low temperature are July and August (72.1°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).
Average pressure in September
Richmond, 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
Richmond, AL
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is February (6.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in September
Richmond, 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 (70%).
Average rainfall in September
Richmond, AL
- Average rainfall in September: 2.44"
The wettest month (with the highest rainfall) is December (3.94").
The driest month (with the least rainfall) is November (1.93").
Average rainfall days in September
Richmond, AL
- Average rainfall days in September: 15.7 days
The month with the highest number of rainy days is July (22.5 days).
The month with the least rainy days is November (8.3 days).
Average snowfall in September
Richmond, AL
- Average snowfall in September: 0"
The month with the highest snowfall is March (0.31").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Richmond, 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
Richmond, AL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Richmond, AL
- Average sunshine days in September: 12.7 days
The months with the most sunshine days are October and November (20.5 days).
The month with the least sunshine days is July (6.6 days).
Average UV index in September
Richmond, 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
Richmond, AL
- Average cloud cover in September: 32
The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 31).
Average visibility in September
Richmond, AL
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, October and November (6mi).
The months with the lowest visibility are May, July, August, September and December (5mi).
Richmond, Alabama, USA
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