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 arrival of September coincides with an average high-temperature of a warm 83.1°F (28.4°C), indicating a minimal shift from August's 88.3°F (31.3°C). September witnesses an average low-temperature hovering around an enjoyable 63.9°F (17.7°C).Heat index
September's mean heat index is calculated to be a tropical 89.6°F (32°C). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.Realize that the values for the heat index are set for shaded places and light winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', melds the effects of warmth and moisture to generate a feeling of heat. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
In September, the average relative humidity is 74%.Rainfall
In Griffin Addition, Alabama, in September, during 14 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. Throughout the year, in Griffin Addition, there are 176.2 rainfall days, and 42.32" (1075mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Griffin Addition, Alabama.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September in Griffin Addition, sunrise is at 6:21 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:33 pm CDT.
Sunshine
The average sunshine in September in Griffin Addition is 8.8h.UV index
In Griffin Addition, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In September, a daily UV index of 5 turns into the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Frequently asked questions
How hot does it get in Griffin Addition in September?
What is the average humidity in September in Griffin Addition?
How many days does it rain in September in Griffin Addition?
When it does not snow in Griffin Addition?
What is the average length of the day in September in Griffin Addition?
When are sunrise and sunset in September in Griffin Addition?
How long on average sun shines in September in Griffin Addition?
How high is the UV index in September in Griffin Addition?
Average temperature in September
Griffin Addition, AL
- Average high temperature in September: 83.1°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 (47.8°F).
- Average low temperature in September: 63.9°F
The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure in September
Griffin Addition, 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
Griffin Addition, AL
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is February (8.6mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).
Average humidity in September
Griffin Addition, AL
- Average humidity in September: 74%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Griffin Addition, AL
- Average rainfall in September: 2.6"
The wettest months (with the highest rainfall) are April and December (4.33").
The driest month (with the least rainfall) is November (2.4").
Average rainfall days in September
Griffin Addition, AL
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is July (19.6 days).
The month with the least rainy days is November (10.2 days).
Average snowfall in September
Griffin Addition, AL
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Griffin Addition, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.1 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
Griffin Addition, 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 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in September
Griffin Addition, AL
- Average sunshine days in September: 14.1 days
The months with the most sunshine days are October and November (18.5 days).
The month with the least sunshine days is July (9.2 days).
Average UV index in September
Griffin Addition, 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
Griffin Addition, 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 June (Cloud cover 29).
Average visibility in September
Griffin Addition, 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).
Griffin Addition, Alabama, USA
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