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 marks a gentle change in average high-temperature, declining from August's tropical 92.3°F (33.5°C) to a moderately hot 84.2°F (29°C). Nighttime temperatures hover around an average low of 64.6°F (18.1°C) in September.Heat index
In September, the average heat index is appraised at a tropical 89.6°F (32°C). With prolonged exposure and constant activity, one might feel exhausted and experience heat cramps.It is important to note that the heat index values are for shaded areas and light wind scenarios. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
The average relative humidity in September is 68%.Rainfall
In Shawnee, in September, it is raining for 12.1 days, with typically 2.6" (66mm) of accumulated precipitation. Throughout the year, in Shawnee, there are 123.4 rainfall days, and 25.87" (657mm) of precipitation is accumulated.Snowfall
In Shawnee, Oklahoma, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September, sunrise is at 7:00 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:12 pm CDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index 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: A maximum high daily UV index of 5 during September translates into the following directions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. 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
How hot is it in Shawnee in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September in Shawnee?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Shawnee, OK
- Average high temperature in September: 84.2°F
The warmest month (with the highest average high temperature) is August (92.3°F).
The month with the lowest average high temperature is January (48.6°F).
- Average low temperature in September: 64.6°F
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).
Average pressure in September
Shawnee, OK
- Average pressure in September: 29.98"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
Shawnee, OK
- Average wind speed in September: 8.1mph
The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest months (with the lowest average wind speed) are July and August (7.9mph).
Average humidity in September
Shawnee, OK
- Average humidity in September: 68%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (63%).
Average rainfall in September
Shawnee, OK
- Average rainfall in September: 2.6"
The wettest month (with the highest rainfall) is May (4.06").
The driest months (with the least rainfall) are January and February (1.18").
Average rainfall days in September
Shawnee, OK
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in September
Shawnee, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Shawnee, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.3 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
Shawnee, 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 3min
The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in September
Shawnee, OK
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is January (23.7 days).
The month with the least sunshine days is May (14.7 days).
Average UV index in September
Shawnee, 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
Shawnee, OK
- Average cloud cover in September: 27
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
Shawnee, 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).
Shawnee, Oklahoma, USA
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