September weather forecastCampbell, AL
September
Weather in September
September, the first month of the autumn in Campbell, is still a tropical month, with an average temperature fluctuating between 88.7°F (31.5°C) and 67.3°F (19.6°C).Temperature
September's advent denotes a minor fluctuation in the average high-temperature to a still hot 88.7°F (31.5°C) from August's 92.8°F (33.8°C). Campbell observes an average nighttime low-temperature of 67.3°F (19.6°C) during the month of September.Heat index
The heat index for September is evaluated at a blistering 104°F (40°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.Heat index determinations are made taking into account the shade and light air movements. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
The average relative humidity in September is 73%.Rainfall
In September, the rain falls for 12.3 days. Throughout September, 2.09" (53mm) of precipitation is accumulated. Throughout the year, there are 158.7 rainfall days, and 33.23" (844mm) of precipitation is accumulated.Snowfall
In Campbell, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 21min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:15 pm. On the last day of September, sunrise is at 6:45 am and sunset at 6:37 pm CDT.
Sunshine
In September, the average sunshine in Campbell is 8.7h.UV index
In Campbell, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Campbell, AL
- Average high temperature in September: 88.7°F
The warmest months (with the highest average high temperature) are July and August (92.8°F).
The month with the lowest average high temperature is January (55.9°F).
- Average low temperature in September: 67.3°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (38.7°F).
Average pressure in September
Campbell, AL
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Campbell, AL
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in September
Campbell, AL
- Average humidity in September: 73%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Campbell, AL
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is July (3.58").
The driest month (with the least rainfall) is November (1.85").
Average rainfall days in September
Campbell, AL
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is July (20.5 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in September
Campbell, AL
- Average snowfall in September: 0"
The months with the highest snowfall are January and December (0.35").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Campbell, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.8 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
Campbell, AL
- Average daylight in September: 12h and 24min
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 42min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in September
Campbell, AL
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is October (22.3 days).
The month with the least sunshine days is July (9.1 days).
Average UV index in September
Campbell, AL
- Average UV index in September: 5
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
Campbell, AL
- Average cloud cover in September: 34
The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 33).
Average visibility in September
Campbell, AL
- Average visibility in September: 5mi
The months with the highest visibility are April, June, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, August, September and December (5mi).
