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 commencement of September indicates a gentle shift in the average high-temperature, receding from August's hot 92.1°F (33.4°C) to a moderately hot 84°F (28.9°C). Quinlan, during September nights, observes an average temperature of 65.3°F (18.5°C).Heat index
September's average heat index is evaluated at a hot 87.8°F (31°C). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.Given the heat index, its values are aligned with shaded sites and gentle winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Humidity
In Quinlan, the average relative humidity in September is 58%.Rainfall
In Quinlan, Oklahoma, in September, during 11.5 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. In Quinlan, during the entire year, the rain falls for 107.5 days and collects up to 18.07" (459mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 7:08 am and sunset at 8:03 pm. On the last day of September, sunrise is at 7:31 am and sunset at 7:20 pm CDT.
Sunshine
The average sunshine in September is 9h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Exercise prevention - Warding off sunburn is urged. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Quinlan have in September?
How high is the UV index in September?
Average temperature in September
Quinlan, OK
- Average high temperature in September: 84°F
The warmest month (with the highest average high temperature) is July (93.9°F).
The month with the lowest average high temperature is December (47.1°F).
- Average low temperature in September: 65.3°F
The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).
Average pressure in September
Quinlan, OK
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Quinlan, OK
- Average wind speed in September: 11.2mph
The windiest month (with the highest average wind speed) is April (13.7mph).
The calmest month (with the lowest average wind speed) is August (10.1mph).
Average humidity in September
Quinlan, OK
- Average humidity in September: 58%
The month with the highest relative humidity is May (61%).
The month with the lowest relative humidity is July (52%).
Average rainfall in September
Quinlan, OK
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is February (0.59").
Average rainfall days in September
Quinlan, OK
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is August (13.8 days).
The month with the least rainy days is January (3.4 days).
Average snowfall in September
Quinlan, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Quinlan, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.6 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
Quinlan, 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 42min).
- Average sunshine in September: 9h and 0min
The months with the most sunshine are June and July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in September
Quinlan, OK
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is January (25.3 days).
The month with the least sunshine days is August (13.4 days).
Average UV index in September
Quinlan, 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
Quinlan, OK
- Average cloud cover in September: 22
The month with the most cloud cover is April (Cloud cover 31).
The month with the least cloud cover is June (Cloud cover 18).
Average visibility in September
Quinlan, 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).
Quinlan, Oklahoma, USA
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