Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September is characterized by a slight reduction in average high-temperature, easing from a hot 93°F (33.9°C) in August to a warm 84.6°F (29.2°C). During September, the average low-temperature is a refreshing 65.7°F (18.7°C).Heat index
September's mean heat index is estimated at a hot 89.6°F (32°C). Exposure and extended activity could potentially cause a state of fatigue and lead to heat cramps.It is crucial to understand that heat index figures are for shade and gentle wind conditions. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Humidity
In September, the average relative humidity is 65%.Rainfall
In Mustang, in September, it is raining for 12.9 days, with typically 2.64" (67mm) of accumulated precipitation. Throughout the year, there are 116.7 rainfall days, and 23.74" (603mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Mustang, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 7:03 am and sunset at 7:57 pm. On the last day of September, sunrise is at 7:25 am and sunset at 7:15 pm CDT.
Sunshine
In Mustang, the average sunshine in September is 8.7h.UV index
In Mustang, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In September, an average UV index of 5 transforms into the following instructions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Mustang have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Mustang, OK
- Average high temperature in September: 84.6°F
The warmest month (with the highest average high temperature) is July (93.4°F).
The month with the lowest average high temperature is January (48.7°F).
- Average low temperature in September: 65.7°F
The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).
Average pressure in September
Mustang, 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
Mustang, OK
- Average wind speed in September: 8.9mph
The windiest month (with the highest average wind speed) is April (12.4mph).
The calmest month (with the lowest average wind speed) is August (8.6mph).
Average humidity in September
Mustang, OK
- Average humidity in September: 65%
The month with the highest relative humidity is May (72%).
The month with the lowest relative humidity is August (58%).
Average rainfall in September
Mustang, OK
- Average rainfall in September: 2.64"
The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is December (0.83").
Average rainfall days in September
Mustang, OK
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is January (4.4 days).
Average snowfall in September
Mustang, OK
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.42").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Mustang, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Mustang, 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
Mustang, OK
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is May (14.1 days).
Average UV index in September
Mustang, 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
Mustang, OK
- Average cloud cover in September: 26
The month with the most cloud cover is March (Cloud cover 36).
The months with the least cloud cover are June and August (Cloud cover 19).
Average visibility in September
Mustang, 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).
Mustang, Oklahoma, USA
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