September weather forecastTahlequah, OK
September
Weather in September
September announces the arrival of autumn, with a drop in temperatures and a change in the colour palette of the surroundings. The intensity of the summer heat eases off as the average peak temperature drops to 82.9°F (28.3°C). A refreshing climate, characterized by cooler mornings and evenings, provides a perfect backdrop for embracing the outdoors. As trees start to change color, the landscape transforms into a canvas filled with shades of golds, oranges, and reds. Completing the scene, clearer skies mark the progression towards the cooler months.Temperature
The beginning of September brings a slight decrease in the average high-temperature, transitioning from a hot 90°F (32.2°C) in August to a moderately hot 82.9°F (28.3°C). Tahlequah experiences a consistent average temperature of 62.8°F (17.1°C) throughout the nights in September.Heat index
For most parts of September, the heat index is evaluated at a hot 89.6°F (32°C). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.Research indicates the heat index considers values in shaded locales and with light winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Humidity
The average relative humidity in September is 72%.Rainfall
In September, the rain falls for 11.9 days. Throughout September, 2.83" (72mm) of precipitation is accumulated. Throughout the year, there are 139.7 rainfall days, and 32.52" (826mm) of precipitation is accumulated.Snowfall
In Tahlequah, snow does not fall in June through October.Daylight
In Tahlequah, Oklahoma, the average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 6:52 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:04 pm CDT.
Sunshine
In September, the average sunshine in Tahlequah is 9.2h.UV index
The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In September, the maximum UV index of 5 translates into these guidelines:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Tahlequah, OK
- Average high temperature in September: 82.9°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (45.9°F).
- Average low temperature in September: 62.8°F
The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).
Average pressure in September
Tahlequah, OK
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Tahlequah, OK
- Average wind speed in September: 6.9mph
The windiest months (with the highest average wind speed) are March and April (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).
Average humidity in September
Tahlequah, OK
- Average humidity in September: 72%
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are August and October (70%).
Average rainfall in September
Tahlequah, OK
- Average rainfall in September: 2.83"
The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is February (1.65").
Average rainfall days in September
Tahlequah, OK
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is May (15.5 days).
The month with the least rainy days is January (7.4 days).
Average snowfall in September
Tahlequah, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.06").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Tahlequah, 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 June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Tahlequah, OK
- Average daylight in September: 12h and 24min
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: 9h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Tahlequah, OK
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is January (20.9 days).
The month with the least sunshine days is May (13.2 days).
Average UV index in September
Tahlequah, OK
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are February and December (UV index 2).
Average cloud cover in September
Tahlequah, OK
- Average cloud cover in September: 28
The months with the most cloud cover are February and March (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Tahlequah, 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).
