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 shift into September records an average high-temperature of a still tropical 86.9°F (30.5°C), subtly varied from August's 90.3°F (32.4°C). Cottonwood observes an average low-temperature of 69.8°F (21°C) during September nights.Heat index
The average heat index in September is calculated to be a very hot 100.4°F (38°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.
Humidity
The average relative humidity in September is 75%.Rainfall
In September, in Cottonwood, Alabama, the rain falls for 14.6 days. Throughout September, 1.73" (44mm) of precipitation is accumulated. In Cottonwood, Alabama, during the entire year, the rain falls for 156.9 days and collects up to 27.52" (699mm) of precipitation.Snowfall
In Cottonwood, snow does not fall in February through December.Daylight
The average length of the day in September is 12h and 20min.On the first day of September in Cottonwood, sunrise is at 6:17 am and sunset at 7:04 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 6:27 pm CDT.
Sunshine
The average sunshine in September in Cottonwood is 8.8h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In September, a regular UV index of 6 translates into these guidelines:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Frequently asked questions
How hot is September in Cottonwood?
What is the average humidity in September in Cottonwood?
How many days does it rain in September in Cottonwood?
When it does not snow in Cottonwood?
What is the average length of the day in September in Cottonwood?
When is the sunrise / sunset in September in Cottonwood?
How long on average sun shines in September in Cottonwood?
What is the UV index reading in September in Cottonwood?
Average temperature in September
Cottonwood, AL
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (59.2°F).
- Average low temperature in September: 69.8°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 (42.4°F).
Average pressure in September
Cottonwood, 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 (29.98"Hg).
Average wind speed in September
Cottonwood, AL
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in September
Cottonwood, 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
Cottonwood, AL
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is August (4.17").
The driest month (with the least rainfall) is November (1.26").
Average rainfall days in September
Cottonwood, AL
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is July (21.4 days).
The month with the least rainy days is November (7.2 days).
Average snowfall in September
Cottonwood, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Cottonwood, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Cottonwood, 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 May (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).
Average sunshine days in September
Cottonwood, AL
- Average sunshine days in September: 13.2 days
The month with the most sunshine days is November (21.3 days).
The month with the least sunshine days is August (6.9 days).
Average UV index in September
Cottonwood, 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
Cottonwood, AL
- Average cloud cover in September: 30
The months with the most cloud cover are February and December (Cloud cover 42).
The months with the least cloud cover are May and October (Cloud cover 27).
Average visibility in September
Cottonwood, 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).
Cottonwood, Alabama, USA
Weather forecast for your location
2. Allow the app to use your location