September weather forecastFort Gibson, OK
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Fort Gibson, Oklahoma, with an average temperature ranging between max 84.2°F (29°C) and min 63.7°F (17.6°C).Temperature
September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's tropical 91°F (32.8°C) to a warm 84.2°F (29°C). Fort Gibson, in the month of September, anticipates a consistent average low-temperature of 63.7°F (17.6°C).Heat index
September's average heat index is calculated to be a tropical 91.4°F (33°C). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.Heat index data is primarily for areas with shade and subjected to light winds. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is the outcome of merging air's temperature and its humidity metrics. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humidity
The average relative humidity in September is 70%.Rainfall
In Fort Gibson, in September, during 11.4 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. Throughout the year, there are 134.9 rainfall days, and 32.36" (822mm) of precipitation is accumulated.Snowfall
In Fort Gibson, snow does not fall in May through October.Daylight
In Fort Gibson, the average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 6:53 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:05 pm CDT.
Sunshine
The average sunshine in September is 9.2h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Fort Gibson, OK
- Average high temperature in September: 84.2°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (46.9°F).
- Average low temperature in September: 63.7°F
The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in September
Fort Gibson, OK
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Fort Gibson, OK
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is March (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).
Average humidity in September
Fort Gibson, OK
- Average humidity in September: 70%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Fort Gibson, OK
- Average rainfall in September: 2.8"
The wettest month (with the highest rainfall) is May (4.69").
The driest month (with the least rainfall) is February (1.65").
Average rainfall days in September
Fort Gibson, OK
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in September
Fort Gibson, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Fort Gibson, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Fort Gibson, OK
- 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 12min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Fort Gibson, OK
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is April (13.2 days).
Average UV index in September
Fort Gibson, OK
- Average UV index in September: 5
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
Fort Gibson, OK
- Average cloud cover in September: 27
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Fort Gibson, OK
- 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).
