September weather forecast
El Reno, OK

englishespañol中文
Share

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

September signals a slight drop in average high-temperature, sliding from August's hot 93°F (33.9°C) to a moderately hot 84.6°F (29.2°C). In September, El Reno's temperature tends to fall to an average low of 65.8°F (18.8°C) during the night.

Heat index

The heat index value for September is calculated to be a tropical 89.6°F (32°C). Ongoing activity coupled with exposure often results in weariness and could induce heat cramps.
Data suggests that the heat index is set for environments in shade and with a light wind. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.

Humidity

The average relative humidity in September is 64%.

Rainfall

In El Reno, in September, it is raining for 11.8 days, with typically 2.52" (64mm) of accumulated precipitation. In El Reno, during the entire year, the rain falls for 105.3 days and collects up to 19.69" (500mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In El Reno, the average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 7:04 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:16 pm CDT.

Sunshine

The average sunshine in September is 8.6h.

UV index

The average daily maximum UV index in September in El Reno, Oklahoma, is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Updated: Jun 4, 2024
Published by: Weather Atlas | About Us | Weather Forecasting
| Data Sources

Frequently asked questions

How hot is it in September?

The high-temperature, in September, in El Reno, records 84.6°F (29.2°C), while the low-temperature is 65.8°F (18.8°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is calculated to be 89.6°F (32°C).

What is the average humidity in September?

In El Reno, Oklahoma, the average relative humidity in September is 64%.

How many days does it rain in September?

In El Reno, during September, the rain falls for 11.8 days and regularly aggregates up to 2.52" (64mm) of precipitation.

When it does not snow in El Reno?

May through October are months without snowfall in El Reno.

What is the average length of the day in September?

In El Reno, the average day length in September is 12h and 23min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:04 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:16 pm CDT.

How many hours of sunshine does El Reno have in September?

In September, the average sunshine duration is 8.6h.

How high is the UV index in September?

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
El Reno, OK

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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 / Average sunshine in September - El Reno, OK
  • Average daylight in September: 12h and 2min

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 4min

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 - 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 - 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 - 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 - 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).

El Reno, Oklahoma, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location