September weather forecastPowhatan, LA
September
Weather in September
In September, Powhatan begins to trace the contours of the pending autumn. The warmth of summer begins to diffuse, replaced by the mild and mellow tones of autumn. Temperatures slide from their summer peak to a cooler 88.9°F (31.6°C), giving an indication of a seasonal shift. The leaves show initial signs of morphing into warm hues. As summer portal closes, the calm and scenic beauty of autumn starts to open up.Temperature
The onset of September entails a subtle temperature shift, as the average high-temperature eases from a hot 94.3°F (34.6°C) in August to a still tropical 88.9°F (31.6°C). September is noted for a mean low-temperature of 68°F (20°C).Heat index
September's mean heat index is evaluated at a blisteringly hot 104°F (40°C). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.Bear in mind that the heat index values are determined for shaded areas and light breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is the outcome of merging air's temperature and its humidity metrics. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. 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.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.
Humidity
In September, the average relative humidity is 73%.Rainfall
In September, the rain falls for 13.1 days. Throughout September, 2.05" (52mm) of precipitation is accumulated. Throughout the year, there are 142.7 rainfall days, and 23.9" (607mm) of precipitation is accumulated.Snowfall
In Powhatan, snow does not fall in April through November.Daylight
In Powhatan, the average length of the day in September is 12h and 21min.On the first day of September in Powhatan, sunrise is at 6:48 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:58 pm CDT.
Sunshine
In September, the average sunshine is 9.4h.UV index
In Powhatan, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A maximum UV index of 6 in September translates into the following recommendations:
Fend off overexposure. Sun protection is vital. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Powhatan, LA
- Average high temperature in September: 88.9°F
The warmest month (with the highest average high temperature) is July (94.6°F).
The month with the lowest average high temperature is January (55.8°F).
- Average low temperature in September: 68°F
The months with the highest average low temperature are July and August (73°F).
The coldest month (with the lowest average low temperature) is January (39.6°F).
Average pressure in September
Powhatan, LA
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Powhatan, LA
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.9mph).
Average humidity in September
Powhatan, LA
- Average humidity in September: 73%
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are August and October (71%).
Average rainfall in September
Powhatan, LA
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is August (2.87").
The driest month (with the least rainfall) is November (1.3").
Average rainfall days in September
Powhatan, LA
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is August (15.9 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in September
Powhatan, LA
- 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, October and November (0").
Average snowfall days in September
Powhatan, LA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Powhatan, LA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Powhatan, LA
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is August (12.1 days).
Average UV index in September
Powhatan, LA
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Powhatan, LA
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in September
Powhatan, LA
- Average visibility in September: 5mi
The months with the highest visibility are June, August, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, September and December (5mi).
