September weather forecastHarrah, OK
September
Weather in September
The first month of the autumn, September, is still a warm month in Harrah, Oklahoma, with an average temperature varying between 84.2°F (29°C) and 64.9°F (18.3°C).Temperature
The onset of September brings a small shift in high-temperatures, falling from a tropical 92.1°F (33.4°C) in August to a warm 84.2°F (29°C). An average minimum temperature of 64.9°F (18.3°C) marks the month of September.Heat index
The heat index value during September is calculated to be a hot 89.6°F (32°C). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up 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 67%.Rainfall
In Harrah, in September, it is raining for 12.5 days, with typically 2.68" (68mm) of accumulated precipitation. Throughout the year, there are 120.6 rainfall days, and 25.59" (650mm) of precipitation is accumulated.Snowfall
In Harrah, snow does not fall in April through October.Daylight
The average length of the day in September in Harrah is 12h and 23min.On the first day of September in Harrah, sunrise is at 7:01 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:13 pm CDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
In Harrah, Oklahoma, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 5 in September translates into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Harrah, OK
- Average high temperature in September: 84.2°F
The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is January (48.4°F).
- Average low temperature in September: 64.9°F
The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).
Average pressure in September
Harrah, 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 (29.88"Hg).
Average wind speed in September
Harrah, OK
- Average wind speed in September: 8.5mph
The windiest month (with the highest average wind speed) is April (11.9mph).
The calmest month (with the lowest average wind speed) is August (8.3mph).
Average humidity in September
Harrah, OK
- Average humidity in September: 67%
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (62%).
Average rainfall in September
Harrah, OK
- Average rainfall in September: 2.68"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is February (1.06").
Average rainfall days in September
Harrah, OK
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (14.6 days).
The month with the least rainy days is January (5.1 days).
Average snowfall in September
Harrah, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Harrah, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (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
Harrah, 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 30min
The months with the most sunshine are July and August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in September
Harrah, OK
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is May (14.3 days).
Average UV index in September
Harrah, 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
Harrah, OK
- Average cloud cover in September: 28
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in September
Harrah, 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).
