September weather forecastHoldenville, OK
September
Weather in September
September, the first month of the autumn in Holdenville, is also a moderately hot month, with temperature in the range of an average low of 64.6°F (18.1°C) and an average high of 84.4°F (29.1°C).Temperature
With the commencement of September, Holdenville records a moderate temperature decline, with the average high easing from August's tropical 92.1°F (33.4°C) to a moderately hot 84.4°F (29.1°C). Holdenville's temperature drops to an average low of 64.6°F (18.1°C) during the nights of September.Heat index
For most parts of September, the heat index is appraised at a tropical 91.4°F (33°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.When assessing, remember that heat index measurements are for light winds and shaded spots. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. 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 extremely significant for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Humidity
The average relative humidity in September in Holdenville is 69%.Rainfall
In Holdenville, in September, it is raining for 12.5 days, with typically 2.52" (64mm) of accumulated precipitation. Throughout the year, there are 131 rainfall days, and 28.39" (721mm) of precipitation is accumulated.Snowfall
In Holdenville, snow does not fall in May through October.Daylight
In Holdenville, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:58 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:20 am and sunset at 7:10 pm CDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 5 during September translates into the following guidance:
Exercise prevention - Protecting skin and eyes from harm is required. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Holdenville, OK
- Average high temperature in September: 84.4°F
The warmest month (with the highest average high temperature) is August (92.1°F).
The month with the lowest average high temperature is January (48.7°F).
- Average low temperature in September: 64.6°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).
Average pressure in September
Holdenville, OK
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Holdenville, OK
- Average wind speed in September: 7.6mph
The windiest month (with the highest average wind speed) is March (11mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity in September
Holdenville, OK
- Average humidity in September: 69%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is August (64%).
Average rainfall in September
Holdenville, OK
- Average rainfall in September: 2.52"
The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is February (1.42").
Average rainfall days in September
Holdenville, OK
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in September
Holdenville, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Holdenville, OK
- 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
Holdenville, 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: 8h and 36min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in September
Holdenville, OK
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is January (22.5 days).
The month with the least sunshine days is May (14.5 days).
Average UV index in September
Holdenville, OK
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Holdenville, OK
- Average cloud cover in September: 28
The months with the most cloud cover are February and March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in September
Holdenville, 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).





