September weather forecastMalcolm, AL
September
Weather in September
September, the first month of the autumn in Malcolm, is still a tropical month, with an average temperature fluctuating between 69.1°F (20.6°C) and 88.5°F (31.4°C).Temperature
Transitioning into September, Malcolm records an average high-temperature of a still tropical 88.5°F (31.4°C), almost identical to August's 91.9°F (33.3°C). Throughout the month of September, the nighttime temperature in Malcolm dips to an average of 69.1°F (20.6°C).Heat index
Throughout September, the heat index is appraised at a scorching 105.8°F (41°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.Observations indicate that the heat index values are for shady locations with light wind. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', marries air temperature and humidity to produce a value illustrating perceived warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.
Humidity
In Malcolm, the average relative humidity in September is 76%.Rainfall
In Malcolm, in September, it is raining for 17.5 days, with typically 3.03" (77mm) of accumulated precipitation. In Malcolm, during the entire year, the rain falls for 180.8 days and collects up to 38.43" (976mm) of precipitation.Snowfall
March through November are months without snowfall.Daylight
In Malcolm, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:28 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 Malcolm, the average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In September, an average UV index of 5 transforms into the following instructions:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Malcolm, AL
- Average high temperature in September: 88.5°F
The warmest month (with the highest average high temperature) is July (92.3°F).
The month with the lowest average high temperature is January (58.1°F).
- Average low temperature in September: 69.1°F
The month with the highest average low temperature is August (73.6°F).
The coldest month (with the lowest average low temperature) is January (40.1°F).
Average pressure in September
Malcolm, 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
Malcolm, AL
- Average wind speed in September: 4.3mph
The windiest month (with the highest average wind speed) is April (5.9mph).
The calmest months (with the lowest average wind speed) are July and August (4mph).
Average humidity in September
Malcolm, AL
- Average humidity in September: 76%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Malcolm, AL
- Average rainfall in September: 3.03"
The wettest month (with the highest rainfall) is August (5.08").
The driest month (with the least rainfall) is November (2.13").
Average rainfall days in September
Malcolm, AL
- Average rainfall days in September: 17.5 days
The month with the highest number of rainy days is July (24.7 days).
The month with the least rainy days is November (8.3 days).
Average snowfall in September
Malcolm, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.31").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Malcolm, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.5 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Malcolm, AL
- Average daylight in September: 12h and 18min
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 54min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).
Average sunshine days in September
Malcolm, AL
- Average sunshine days in September: 10 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is July (5 days).
Average UV index in September
Malcolm, 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
Malcolm, AL
- Average cloud cover in September: 33
The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in September
Malcolm, AL
- Average visibility in September: 5mi
The months with the highest visibility are June and October (6mi).
The months with the lowest visibility are January, February, March, April, May, July, August, September, November and December (5mi).
