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 beginning of September reveals an average high-temperature of a warm 83.5°F (28.6°C), showing minimal deviation from the previous month. During September, the average low-temperature in Caldwell is a refreshing 64°F (17.8°C).Heat index
The heat index in September is computed to be a tropical 91.4°F (33°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.In the scope of the heat index, its values resonate with shade and light wind conditions. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for 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.
Humidity
The average relative humidity in September is 75%.Rainfall
In Caldwell, in September, during 14.6 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. Throughout the year, in Caldwell, there are 179.3 rainfall days, and 43.15" (1096mm) of precipitation is accumulated.Snowfall
In Caldwell, snow does not fall in April through October.Daylight
In Caldwell, the average length of the day in September is 12h and 22min.On the first day of September in Caldwell, Alabama, sunrise is at 6:19 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 6:30 pm CDT.
Sunshine
In Caldwell, the average sunshine in September is 8.6h.UV index
In Caldwell, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Frequently asked questions
How hot does it get in Caldwell in September?
What is the average humidity in September in Caldwell?
How much does it rain in Caldwell in September?
When it does not snow in Caldwell?
How many hours of daylight does Caldwell have in September?
When are sunrise and sunset in September in Caldwell?
How many hours of sunshine does Caldwell have in September?
What is the UV index intensity in September in Caldwell?
Average temperature in September
Caldwell, AL
- Average high temperature in September: 83.5°F
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (49.8°F).
- Average low temperature in September: 64°F
The months with the highest average low temperature are July and August (69.4°F).
The coldest month (with the lowest average low temperature) is January (34.5°F).
Average pressure in September
Caldwell, AL
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Caldwell, AL
- Average wind speed in September: 4.8mph
The windiest months (with the highest average wind speed) are January and February (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).
Average humidity in September
Caldwell, AL
- Average humidity in September: 75%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Caldwell, AL
- Average rainfall in September: 2.64"
The wettest month (with the highest rainfall) is August (4.41").
The driest month (with the least rainfall) is October (2.36").
Average rainfall days in September
Caldwell, AL
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is July (22.5 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in September
Caldwell, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Caldwell, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Caldwell, AL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Caldwell, AL
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is October (19.3 days).
The month with the least sunshine days is July (6.9 days).
Average UV index in September
Caldwell, AL
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Caldwell, AL
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 49).
The months with the least cloud cover are June and September (Cloud cover 31).
Average visibility in September
Caldwell, 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).
Caldwell, Alabama, USA
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