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
Royal's average high-temperature in September sits at a moderately hot 82.8°F (28.2°C), showing little difference from the previous month. The month of September records an average low-temperature of 63.7°F (17.6°C) in Royal, Alabama.Heat index
For September, the heat index is appraised at a tropical 89.6°F (32°C). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.Be informed that the heat index values are oriented around shady conditions and gentle breezes. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', combines both the air temperature and the humidity level to give a perceived human temperature. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Humidity
In Royal, the average relative humidity in September is 75%.Rainfall
In Royal, in September, it is raining for 14.8 days, with typically 2.64" (67mm) of accumulated precipitation. In Royal, during the entire year, the rain falls for 177.4 days and collects up to 41.42" (1052mm) of precipitation.Snowfall
April through October are months without snowfall in Royal.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:20 am and sunset at 7:11 pm. On the last day of September, sunrise is at 6:40 am and sunset at 6:31 pm CDT.
Sunshine
In Royal, the average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index in Royal, Alabama, is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Avoiding the Sun during its peak radiation time around midday is a healthy practice. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Frequently asked questions
Is it hot in Royal during September?
What is the average humidity in September in Royal?
How much does it rain in Royal in September?
When it does not snow in Royal?
How many hours of daylight does Royal have in September?
When are sunrise and sunset in September in Royal?
How many hours of sunshine does Royal have in September?
What is the UV index reading in September in Royal?
Average temperature in September
Royal, AL
- Average high temperature in September: 82.8°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (48.9°F).
- Average low temperature in September: 63.7°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°F).
Average pressure in September
Royal, 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
Royal, AL
- Average wind speed in September: 5mph
The windiest months (with the highest average wind speed) are January, February and March (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in September
Royal, 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
Royal, AL
- Average rainfall in September: 2.64"
The wettest month (with the highest rainfall) is December (4.21").
The driest month (with the least rainfall) is October (2.32").
Average rainfall days in September
Royal, AL
- Average rainfall days in September: 14.8 days
The month with the highest number of rainy days is July (20.9 days).
The month with the least rainy days is November (8.7 days).
Average snowfall in September
Royal, 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
Royal, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (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
Royal, 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: 9h and 54min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Royal, AL
- Average sunshine days in September: 13.2 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is July (8.4 days).
Average UV index in September
Royal, AL
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Royal, AL
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is September (Cloud cover 31).
Average visibility in September
Royal, 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).
Royal, Alabama, USA
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