September weather forecastEl Reno, OK
September
Weather in September
September marks the onset of autumn in El Reno, drawing a clear departure from August's intense summer. This period sees temperatures gradually reducing, signaling the approach of fall. With an average rainfall of 2.52" (64mm), September conveys a balance between the sweltering summer months and the cooler autumn days. September's weather provides a comfortable window for outdoor excursions, benefiting from manageable humidity levels of around 64%. The transition from September's milder conditions to October's more crisp temperatures preludes the changing leaves of autumn.Temperature
El Reno's transition into September involves a gentle shift in temperature, receding from a hot 93°F (33.9°C) in August to a moderately hot 84.6°F (29.2°C). September brings El Reno a consistent average low-temperature of 65.8°F (18.8°C).Heat index
The heat index for September is calculated to be a hot 89.6°F (32°C). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.In terms of the heat index, values are set with light wind and shade conditions in mind. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Humidity
The average relative humidity in September in El Reno is 64%.Rainfall
In El Reno, in September, it is raining for 11.8 days, with typically 2.52" (64mm) of accumulated precipitation. Throughout the year, there are 105.3 rainfall days, and 19.69" (500mm) of precipitation is accumulated.Snowfall
In El Reno, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 7:04 am and sunset at 7:58 pm. On the last day of September, sunrise is at 7:26 am and sunset at 7:16 pm CDT.
Sunshine
The average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index in El Reno is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Act with care - The need to guard against sun damage is communicated. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
El Reno, OK
- Average high temperature in September: 84.6°F
The warmest month (with the highest average high temperature) is July (94.5°F).
The month with the lowest average high temperature is January (48.6°F).
- Average low temperature in September: 65.8°F
The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in September
El Reno, OK
- 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 (29.87"Hg).
Average wind speed in September
El Reno, OK
- Average wind speed in September: 9.3mph
The windiest month (with the highest average wind speed) is April (12.6mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).
Average humidity in September
El Reno, OK
- Average humidity in September: 64%
The month with the highest relative humidity is May (71%).
The month with the lowest relative humidity is August (57%).
Average rainfall in September
El Reno, OK
- Average rainfall in September: 2.52"
The wettest month (with the highest rainfall) is May (3.35").
The driest month (with the least rainfall) is December (0.59").
Average rainfall days in September
El Reno, OK
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is May (13.1 days).
The month with the least rainy days is January (4.1 days).
Average snowfall in September
El Reno, OK
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
El Reno, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.2 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
El Reno, 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 July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in September
El Reno, OK
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is January (25.3 days).
The month with the least sunshine days is September (15.7 days).
Average UV index in September
El Reno, 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
El Reno, OK
- Average cloud cover in September: 27
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
El Reno, 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).
