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 start of September, Arley measures an average high-temperature of a warm 84.7°F (29.3°C), not significantly differing from August's 89.8°F (32.1°C). During the month of September, an average low-temperature of 65.3°F (18.5°C) is recorded.Heat index
During September, the heat index is appraised at a hot 93.2°F (34°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially crucial for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Humidity
In Arley, the average relative humidity in September is 73%.Rainfall
In Arley, in September, during 14.5 rainfall days, 2.68" (68mm) of precipitation is typically accumulated. Throughout the year, in Arley, there are 184 rainfall days, and 43.7" (1110mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Arley, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:22 am and sunset at 7:14 pm. On the last day of September, sunrise is at 6:43 am and sunset at 6:34 pm CDT.
Sunshine
The average sunshine in September is 9h.UV index
In Arley, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high daily UV index of 6 during September translates into the following directions:
Guard against overexposure. Protection from sun-induced harm is essential. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Frequently asked questions
Is it hot in Arley during September?
What is the average humidity in September in Arley?
How many days does it rain in September in Arley?
When it does not snow in Arley?
How many hours of daylight does Arley have in September?
When are sunrise and sunset in September in Arley?
How long on average sun shines in September in Arley?
How high is the UV index in September in Arley?
Average temperature in September
Arley, AL
- Average high temperature in September: 84.7°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (50.4°F).
- Average low temperature in September: 65.3°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 (34.7°F).
Average pressure in September
Arley, 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 (29.97"Hg).
Average wind speed in September
Arley, AL
- Average wind speed in September: 5mph
The windiest months (with the highest average wind speed) are February, March and April (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in September
Arley, AL
- Average humidity in September: 73%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Arley, AL
- Average rainfall in September: 2.68"
The wettest month (with the highest rainfall) is December (4.45").
The driest month (with the least rainfall) is November (2.48").
Average rainfall days in September
Arley, AL
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is November (10.3 days).
Average snowfall in September
Arley, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.75").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Arley, AL
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (1.6 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
Arley, 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: 9h and 0min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Arley, AL
- Average sunshine days in September: 12.2 days
The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is July (7.3 days).
Average UV index in September
Arley, AL
- Average UV index in September: 6
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Arley, AL
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in September
Arley, AL
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).
Arley, Alabama, USA
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