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
With the onset of September, a modest change to a warm 84.7°F (29.3°C) from August's 89.2°F (31.8°C) is noted in high-temperature. In Roper, an average nighttime temperature of 64.6°F (18.1°C) is expected during September.Heat index
The heat index value during September is estimated at a tropical 93.2°F (34°C). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.The heat index's values are generally associated with conditions in shade and light breezes. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Humidity
The average relative humidity in September in Roper is 74%.Rainfall
In Roper, in September, it is raining for 12.1 days, with typically 1.14" (29mm) of accumulated precipitation. Throughout the year, there are 149 rainfall days, and 19.88" (505mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September is 12h and 22min.On the first day of September in Roper, sunrise is at 6:20 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 6:40 am and sunset at 6:31 pm CDT.
Sunshine
In Roper, Alabama, the average sunshine in September is 8.8h.UV index
In Roper, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily maximum UV index of 5 in September interprets into the following advice:
Undertake precautions - Obligation exists to protect against skin and eye damage. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Frequently asked questions
How hot is it in Roper in September?
What is the average humidity in September in Roper?
How much does it rain in Roper in September?
When it does not snow in Roper?
How many hours of daylight does Roper have in September?
What time are sunrise and sunset in September in Roper?
How many hours of sunshine does Roper have in September?
What is the UV index reading in September in Roper?
Average temperature in September
Roper, AL
- Average high temperature in September: 84.7°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (50.7°F).
- Average low temperature in September: 64.6°F
The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (34.9°F).
Average pressure in September
Roper, 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
Roper, AL
- Average wind speed in September: 4.8mph
The windiest months (with the highest average wind speed) are January and February (7.4mph).
The calmest months (with the lowest average wind speed) are July and August (4.3mph).
Average humidity in September
Roper, AL
- Average humidity in September: 74%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Roper, AL
- Average rainfall in September: 1.14"
The wettest month (with the highest rainfall) is August (2.24").
The driest month (with the least rainfall) is October (1.06").
Average rainfall days in September
Roper, AL
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is November (7.9 days).
Average snowfall in September
Roper, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.2").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Roper, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1 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
Roper, AL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 8h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in September
Roper, AL
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is November (20.6 days).
The month with the least sunshine days is July (9.6 days).
Average UV index in September
Roper, 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
Roper, AL
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June and September (Cloud cover 30).
Average visibility in September
Roper, 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).
Roper, Alabama, USA
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