September weather forecast
Cobb, OK

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Cobb, Oklahoma, with an average temperature fluctuating between 66.7°F (19.3°C) and 85.8°F (29.9°C).

Temperature

Cobb's progression into September involves a gentle drop in the average high-temperature, from a tropical 94.3°F (34.6°C) in August to a warm 85.8°F (29.9°C). Throughout September, Cobb witnesses a nighttime temperature average of 66.7°F (19.3°C).

Heat index

For most parts of September, the heat index is estimated at a tropical 93.2°F (34°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important 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

In September, the average relative humidity in Cobb is 67%.

Rainfall

In September, in Cobb, the rain falls for 12.8 days. Throughout September, 2.99" (76mm) of precipitation is accumulated. In Cobb, during the entire year, the rain falls for 139 days and collects up to 32.32" (821mm) of precipitation.

Snowfall

In Cobb, Oklahoma, snow does not fall in April through October.

Daylight

In Cobb, the average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 6:59 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:19 am and sunset at 7:10 pm CDT.

Sunshine

In Cobb, the average sunshine in September is 8.6h.

UV index

In September, the average daily maximum UV index in Cobb, Oklahoma, is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 5 during September translates into the following guidance:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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Frequently asked questions

How hot is September in Cobb?

The high-temperature in Cobb, Oklahoma, during September is 85.8°F (29.9°C) and the low-temperature is 66.7°F (19.3°C). The average heat index (a.k.a. 'feels like', 'real feel'), which combines air temperature and relative humidity, in September is estimated at 93.2°F (34°C).

What is the average humidity in September in Cobb?

In Cobb, the average relative humidity in September is 67%.

How much does it rain in Cobb in September?

In Cobb, Oklahoma, in September, during 12.8 rainfall days, 2.99" (76mm) of precipitation is typically accumulated.

When it does not snow in Cobb?

April through October are months without snowfall.

What is the average length of the day in September in Cobb?

The average day length in September in Cobb is 12h and 22min.

When are sunrise and sunset in September in Cobb?

In September, on the first day of the month, sunrise is at 6:59 am and sunset at 7:51 pm. On the last day of the month, in Cobb, sunrise is at 7:19 am and sunset at 7:10 pm CDT.

How many hours of sunshine does Cobb have in September?

In Cobb, the average sunshine duration in September is 8.6h.

What is the UV index reading in September in Cobb?

In Cobb, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Cobb, OK

Average temperature in September - Cobb, OK
  • Average high temperature in September: 85.8°F

The warmest month (with the highest average high temperature) is August (94.3°F).
The month with the lowest average high temperature is January (51.4°F).

  • Average low temperature in September: 66.7°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 (36°F).

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Average pressure in September
Cobb, OK

Average pressure in September - Cobb, 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 (29.9"Hg).

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Average wind speed in September
Cobb, OK

Average wind speed in September - Cobb, OK
  • Average wind speed in September: 7mph

The windiest month (with the highest average wind speed) is March (10.2mph).
The calmest months (with the lowest average wind speed) are July and August (6.9mph).

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Average humidity in September
Cobb, OK

Average humidity in September - Cobb, OK
  • Average humidity in September: 67%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (61%).

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Average rainfall in September
Cobb, OK

Average rainfall in September - Cobb, OK
  • Average rainfall in September: 2.99"

The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is January (1.81").

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Average rainfall days in September
Cobb, OK

Average rainfall days in September - Cobb, OK
  • Average rainfall days in September: 12.8 days

The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (7.3 days).

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Average snowfall in September
Cobb, OK

Average snowfall in September - Cobb, OK
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.98").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Cobb, OK

Average snowfall days in September - Cobb, OK
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Cobb, OK

Average daylight in September / Average sunshine in September - Cobb, OK
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in September: 8h and 4min

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 30min).

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Average sunshine days in September
Cobb, OK

Average sunshine days in September - Cobb, OK
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is March (14.6 days).

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Average UV index in September
Cobb, OK

Average UV index in September - Cobb, 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).

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Average cloud cover in September
Cobb, OK

Average cloud cover in September - Cobb, OK
  • Average cloud cover in September: 28

The months with the most cloud cover are February and March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 21).

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Average visibility in September
Cobb, OK

Average visibility in September - Cobb, 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).

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Cobb, Oklahoma, USA

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