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
A modest decline in the average high-temperature is seen during September, decreasing from a hot 90.7°F (32.6°C) in August to a warm 83.8°F (28.8°C). During September, the average low-temperature is recorded at an enjoyable 64°F (17.8°C).Heat index
The heat index for September is computed to be a tropical 89.6°F (32°C). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Humidity
The average relative humidity in September is 70%.Rainfall
In Jenks, in September, during 11.5 rainfall days, 3.31" (84mm) of precipitation is typically accumulated. Throughout the year, there are 129.7 rainfall days, and 29.41" (747mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Jenks, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:56 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:18 am and sunset at 7:08 pm CDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: A maximum high daily UV index of 5 during September translates into the following directions:
Heed the precautions - Suggestions to avoid sunburn are made. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
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 in Jenks?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September in Jenks?
Average temperature in September
Jenks, OK
- Average high temperature in September: 83.8°F
The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (46.6°F).
- Average low temperature in September: 64°F
The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in September
Jenks, OK
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Jenks, OK
- Average wind speed in September: 7.5mph
The windiest months (with the highest average wind speed) are March and April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7mph).
Average humidity in September
Jenks, OK
- Average humidity in September: 70%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January, August and October (67%).
Average rainfall in September
Jenks, OK
- Average rainfall in September: 3.31"
The wettest month (with the highest rainfall) is May (5.16").
The driest month (with the least rainfall) is January (1.26").
Average rainfall days in September
Jenks, OK
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in September
Jenks, 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
Jenks, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.9 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
Jenks, OK
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 36min).
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 August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in September
Jenks, OK
- Average sunshine days in September: 16.5 days
The months with the most sunshine days are January and December (22.1 days).
The month with the least sunshine days is May (13.9 days).
Average UV index in September
Jenks, 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
Jenks, OK
- Average cloud cover in September: 29
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in September
Jenks, 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).
Jenks, Oklahoma, USA
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