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
The onset of September results in a small decrease in the average high-temperature, moderately receding from a hot 90.9°F (32.7°C) in August to a warm 83.7°F (28.7°C). Kellyville encounters a steady low-temperature average of 64.2°F (17.9°C) throughout the month of September.Heat index
September's average heat index is estimated at a tropical 89.6°F (32°C). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.Be informed that the heat index values are oriented around shady conditions and gentle breezes. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. 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
The average relative humidity in September is 69%.Rainfall
In Kellyville, during September, the rain falls for 11.5 days and regularly aggregates up to 3.35" (85mm) of precipitation. In Kellyville, during the entire year, the rain falls for 129.3 days and collects up to 29.13" (740mm) of precipitation.Snowfall
In Kellyville, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 6:57 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:09 pm CDT.
Sunshine
In Kellyville, the average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 5 in September translates into these instructions:
Ensure safety - Sun damage prevention is strongly urged. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
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 in Kellyville?
What is the average length of the day in September?
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
Kellyville, OK
- Average high temperature in September: 83.7°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 (46.9°F).
- Average low temperature in September: 64.2°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in September
Kellyville, 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 (29.89"Hg).
Average wind speed in September
Kellyville, OK
- Average wind speed in September: 7.6mph
The windiest months (with the highest average wind speed) are March and April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity in September
Kellyville, OK
- Average humidity in September: 69%
The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January and August (66%).
Average rainfall in September
Kellyville, OK
- Average rainfall in September: 3.35"
The wettest month (with the highest rainfall) is May (4.92").
The driest month (with the least rainfall) is January (1.22").
Average rainfall days in September
Kellyville, OK
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in September
Kellyville, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.65").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Kellyville, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.4 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
Kellyville, 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: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in September
Kellyville, OK
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is January (22.5 days).
The month with the least sunshine days is May (12.7 days).
Average UV index in September
Kellyville, OK
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Kellyville, OK
- Average cloud cover in September: 28
The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Kellyville, 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).
Kellyville, Oklahoma, USA
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