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
September's onset sees an average high-temperature of a moderately hot 83.7°F (28.7°C), exhibiting a slight fluctuation from the previous month. In the month of September, the temperature generally rests at an average low of 63.9°F (17.7°C).Heat index
The heat index for September is computed to be a hot 91.4°F (33°C). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.When referencing the heat index, its values are suitable for shady environments and light breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', reflects the feeling of heat when considering both air temperature and humidity. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Humidity
In September, the average relative humidity is 75%.Rainfall
In September, the rain falls for 13.7 days. Throughout September, 2.56" (65mm) of precipitation is accumulated. In Holley Crossroads, during the entire year, the rain falls for 178.5 days and collects up to 38.78" (985mm) of precipitation.Snowfall
In Holley Crossroads, snow does not fall in April through November.Daylight
The average length of the day in September in Holley Crossroads is 12h and 22min.On the first day of September, sunrise is at 6:17 am and sunset at 7:07 pm. On the last day of the month, sunrise is at 6:36 am and sunset at 6:28 pm CDT.
Sunshine
In Holley Crossroads, the average sunshine in September is 8.7h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. When the Sun is at its strongest around midday, find shade and limit exposure. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September in Holley Crossroads?
How many hours of sunshine does Holley Crossroads have in September?
How high is the UV index in September?
Average temperature in September
Holley Crossroads, AL
- Average high temperature in September: 83.7°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (50°F).
- Average low temperature in September: 63.9°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).
Average pressure in September
Holley Crossroads, AL
- Average pressure in September: 30.02"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
Holley Crossroads, AL
- Average wind speed in September: 4.5mph
The windiest month (with the highest average wind speed) is February (7.3mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in September
Holley Crossroads, 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
Holley Crossroads, AL
- Average rainfall in September: 2.56"
The wettest month (with the highest rainfall) is December (3.78").
The driest month (with the least rainfall) is October (2.24").
Average rainfall days in September
Holley Crossroads, AL
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is July (22.7 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in September
Holley Crossroads, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.83").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Holley Crossroads, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.4 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
Holley Crossroads, 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 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in September
Holley Crossroads, AL
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is October (19 days).
The month with the least sunshine days is July (7.3 days).
Average UV index in September
Holley Crossroads, 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
Holley Crossroads, AL
- Average cloud cover in September: 30
The months with the most cloud cover are February and December (Cloud cover 47).
The months with the least cloud cover are June and September (Cloud cover 30).
Average visibility in September
Holley Crossroads, 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).
Holley Crossroads, Alabama, USA
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