September weather forecast
Oologah, OK

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Weather in September

The first month of the autumn, September, is still a warm month in Oologah, Oklahoma, with temperature in the range of an average low of 63.1°F (17.3°C) and an average high of 82.2°F (27.9°C).

Temperature

The advent of September brings a subtle shift in temperature, with the average high moving from a hot 89.2°F (31.8°C) in August to a moderately hot 82.2°F (27.9°C). In the month of September, Oologah experiences an average low-temperature of 63.1°F (17.3°C).

Heat index

In September, the average heat index is computed to be a tropical 87.8°F (31°C). If exposure and ongoing activity persist, they might induce a state of tiredness and heat cramps.
Heat index data is primarily for areas with shade and subjected to light winds. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.

Humidity

In Oologah, the average relative humidity in September is 71%.

Rainfall

In September, the rain falls for 9.7 days. Throughout September, 2.52" (64mm) of precipitation is accumulated. Throughout the year, there are 125.4 rainfall days, and 23.19" (589mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In September, the average length of the day in Oologah is 12h and 24min.
On the first day of September, sunrise is at 6:54 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:07 pm CDT.

Sunshine

In September, the average sunshine is 9h.

UV index

In Oologah, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for average individuals.
Note: In September, the UV index of 5 transforms into the following advice:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
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Frequently asked questions

What is the average September temperature in Oologah?

In September, in Oologah, the average high-temperature is 82.2°F (27.9°C), and the average low-temperature is 63.1°F (17.3°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is computed to be 87.8°F (31°C).

What is the average humidity in September in Oologah?

In Oologah, the average relative humidity in September is 71%.

How much does it rain in Oologah in September?

In September, the rain falls for 9.7 days. Throughout September, 2.52" (64mm) of precipitation is accumulated.

When it does not snow in Oologah?

April through October are months without snowfall in Oologah, Oklahoma.

How many hours of daylight does Oologah have in September?

The average day length in September in Oologah is 12h and 24min.

When is the sunrise / sunset in September in Oologah?

In September, on the first day of the month, sunrise is at 6:54 am and sunset at 7:50 pm. On the last day of the month, in Oologah, sunrise is at 7:17 am and sunset at 7:07 pm CDT.

How many hours of sunshine does Oologah have in September?

The average sunshine duration in September in Oologah is 9h.

What is the UV index reading in September in Oologah?

The average daily maximum UV index in September in Oologah, Oklahoma, is 5. A UV Index of 3 to 5 symbolizes a moderate health threat from exposure to the Sun's UV radiation.
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
Oologah, OK

Average temperature in September - Oologah, OK
  • Average high temperature in September: 82.2°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (45°F).

  • Average low temperature in September: 63.1°F

The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

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Average pressure in September
Oologah, OK

Average pressure in September - Oologah, OK
  • Average pressure in September: 30"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in September
Oologah, OK

Average wind speed in September - Oologah, OK
  • Average wind speed in September: 7.6mph

The windiest month (with the highest average wind speed) is March (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

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Average humidity in September
Oologah, OK

Average humidity in September - Oologah, OK
  • Average humidity in September: 71%

The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in September
Oologah, OK

Average rainfall in September - Oologah, OK
  • Average rainfall in September: 2.52"

The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is November (0.75").

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Average rainfall days in September
Oologah, OK

Average rainfall days in September - Oologah, OK
  • Average rainfall days in September: 9.7 days

The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (6.2 days).

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Average snowfall in September
Oologah, OK

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

The month with the highest snowfall is February (0.79").
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
Oologah, OK

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

The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Oologah, 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 month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

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Average sunshine days in September
Oologah, OK

Average sunshine days in September - Oologah, OK
  • Average sunshine days in September: 17.7 days

The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is May (12.9 days).

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Average UV index in September
Oologah, OK

Average UV index in September - Oologah, 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 January and December (UV index 2).

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Average cloud cover in September
Oologah, OK

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

The month with the most cloud cover is March (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 23).

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Average visibility in September
Oologah, OK

Average visibility in September - Oologah, 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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Oologah, Oklahoma, USA

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