September weather forecast
Holdenville, OK

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Weather in September

September, the first month of the autumn in Holdenville, is also a moderately hot month, with an average temperature fluctuating between 84.4°F (29.1°C) and 64.6°F (18.1°C).

Temperature

As August shifts into September, a minor alteration in temperatures is observed, with average highs reducing from a hot 92.1°F (33.4°C) to a moderately hot 84.4°F (29.1°C). In the month of September, Holdenville's average low-temperature falls to an enjoyable 64.6°F (18.1°C).

Heat index

In September, the heat index is estimated at a hot 91.4°F (33°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

In September, the average relative humidity in Holdenville, Oklahoma, is 69%.

Rainfall

In Holdenville, during September, the rain falls for 12.5 days and regularly aggregates up to 2.52" (64mm) of precipitation. In Holdenville, during the entire year, the rain falls for 131 days and collects up to 28.39" (721mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In Holdenville, the average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 6:58 am and sunset at 7:51 pm. On the last day of September, in Holdenville, sunrise is at 7:20 am and sunset at 7:10 pm CDT.

Sunshine

The average sunshine in September in Holdenville is 8.6h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 5 during September translates into the following directions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Around midday, solar radiation is most harmful; hence, exposure should be limited. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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Frequently asked questions

Is it hot in Holdenville during September?

The high-temperature during September is 84.4°F (29.1°C) and the low-temperature is 64.6°F (18.1°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in September is estimated at 91.4°F (33°C).

What is the average humidity in September in Holdenville?

In Holdenville, the average relative humidity in September is 69%.

How much does it rain in Holdenville in September?

In Holdenville, in September, it is raining for 12.5 days, with typically 2.52" (64mm) of accumulated precipitation.

When it does not snow in Holdenville?

May through October are months without snowfall in Holdenville, Oklahoma.

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

The average day length in September in Holdenville is 12h and 23min.

What time are sunrise and sunset in September in Holdenville?

In September, on the first day of the month, sunrise is at 6:58 am and sunset at 7:51 pm. On the last day of the month, in Holdenville, sunrise is at 7:20 am and sunset at 7:10 pm CDT.

How many hours of sunshine does Holdenville have in September?

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

What is the UV index reading in September in Holdenville?

In Holdenville, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability 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
Holdenville, OK

Average temperature in September - Holdenville, OK
  • Average high temperature in September: 84.4°F

The warmest month (with the highest average high temperature) is August (92.1°F).
The month with the lowest average high temperature is January (48.7°F).

  • Average low temperature in September: 64.6°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).

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Average pressure in September
Holdenville, OK

Average pressure in September - Holdenville, 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).

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Average wind speed in September
Holdenville, OK

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

The windiest month (with the highest average wind speed) is March (11mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).

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Average humidity in September
Holdenville, OK

Average humidity in September - Holdenville, OK
  • Average humidity in September: 69%

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is August (64%).

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Average rainfall in September
Holdenville, OK

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

The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is February (1.42").

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Average rainfall days in September
Holdenville, OK

Average rainfall days in September - Holdenville, OK
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is May (15.1 days).
The month with the least rainy days is January (6.7 days).

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Average snowfall in September
Holdenville, OK

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

The month with the highest snowfall is February (1.54").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Holdenville, OK

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

The month with the highest number of snowfall days is February (2.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 30min).
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 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

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Average sunshine days in September
Holdenville, OK

Average sunshine days in September - Holdenville, OK
  • Average sunshine days in September: 15.5 days

The month with the most sunshine days is January (22.5 days).
The month with the least sunshine days is May (14.5 days).

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Average UV index in September
Holdenville, OK

Average UV index in September - Holdenville, 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
Holdenville, OK

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

The months with the most cloud cover are February and March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 20).

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Average visibility in September
Holdenville, OK

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

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