September weather forecastSubiaco, AR
September
Weather in September
September, the first month of the autumn in Subiaco, is still a warm month, with temperature in the range of an average high of 84°F (28.9°C) and an average low of 62.2°F (16.8°C).Temperature
Start of September brings a slight shift in the average high-temperature, dipping a bit from August's tropical 91.2°F (32.9°C) to a warm 84°F (28.9°C). The average low-temperature reading in September for Subiaco reflects a significant fall from the daytime highs, stabilizing at a refreshing 62.2°F (16.8°C).Heat index
The average heat index in September is estimated at a hot 91.4°F (33°C). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.It is essential to grasp that the heat index's numbers are for shade and light wind settings. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
Humidity
In September, the average relative humidity is 73%.Rainfall
In Subiaco, in September, during 11.3 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. Throughout the year, in Subiaco, there are 123.9 rainfall days, and 17.76" (451mm) of precipitation is accumulated.Snowfall
In Subiaco, snow does not fall in April through October.Daylight
In Subiaco, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:47 am and sunset at 7:41 pm. On the last day of September, sunrise is at 7:09 am and sunset at 6:59 pm CDT.
Sunshine
In September, the average sunshine is 9.4h.UV index
In Subiaco, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 6 during September translates into the following directions:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Subiaco, AR
- Average high temperature in September: 84°F
The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (47.8°F).
- Average low temperature in September: 62.2°F
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in September
Subiaco, AR
- 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 (29.93"Hg).
Average wind speed in September
Subiaco, AR
- Average wind speed in September: 4.5mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).
Average humidity in September
Subiaco, AR
- Average humidity in September: 73%
The months with the highest relative humidity are March and May (78%).
The months with the lowest relative humidity are July and August (71%).
Average rainfall in September
Subiaco, AR
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is December (0.98").
Average rainfall days in September
Subiaco, AR
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is May (12.9 days).
The month with the least rainy days is November (7.7 days).
Average snowfall in September
Subiaco, AR
- Average snowfall in September: 0"
The months with the highest snowfall are January, February and December (0.28").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Subiaco, AR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.9 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
Subiaco, AR
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).
Average sunshine days in September
Subiaco, AR
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is December (21.3 days).
The month with the least sunshine days is July (13.8 days).
Average UV index in September
Subiaco, AR
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Subiaco, AR
- Average cloud cover in September: 28
The months with the most cloud cover are February and March (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Subiaco, AR
- Average visibility in September: 6mi
The months with the highest visibility are February, March, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, April and May (5mi).
