September weather forecastStanley, OK
September
Weather in September
September, the first month of the autumn in Stanley, is still a warm month, with an average temperature ranging between min 63.9°F (17.7°C) and max 85.1°F (29.5°C).Temperature
The arrival of September correlates with a minor temperature reduction, down from August's tropical 92.1°F (33.4°C) to a moderately hot 85.1°F (29.5°C). The mean low-temperature during September nights is an enjoyable 63.9°F (17.7°C).Heat index
The heat index value for September is evaluated at a hot 93.2°F (34°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is achieved by amalgamating air temperature with the relative humidity readings. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Humidity
In Stanley, Oklahoma, the average relative humidity in September is 71%.Rainfall
In September, the rain falls for 13.5 days. Throughout September, 2.6" (66mm) of precipitation is accumulated. Throughout the year, there are 149.4 rainfall days, and 34.29" (871mm) of precipitation is accumulated.Snowfall
In Stanley, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 6:55 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:06 pm CDT.
Sunshine
In Stanley, the average sunshine in September is 9h.UV index
In Stanley, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Stanley, OK
- Average high temperature in September: 85.1°F
The warmest months (with the highest average high temperature) are July and August (92.1°F).
The month with the lowest average high temperature is January (49.1°F).
- Average low temperature in September: 63.9°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).
Average pressure in September
Stanley, OK
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Stanley, OK
- Average wind speed in September: 6.1mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
Stanley, OK
- Average humidity in September: 71%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Stanley, OK
- Average rainfall in September: 2.6"
The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in September
Stanley, OK
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in September
Stanley, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.87").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Stanley, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 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
Stanley, OK
- Average daylight in September: 12h and 24min
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 month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Stanley, OK
- Average sunshine days in September: 15 days
The month with the most sunshine days is December (19.2 days).
The month with the least sunshine days is August (13.3 days).
Average UV index in September
Stanley, OK
- 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
Stanley, OK
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in September
Stanley, 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).
