September weather forecast
Chandler, OK

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Weather in September

September, the first month of the autumn in Chandler, is also a moderately hot month, with an average temperature fluctuating between 64.4°F (18°C) and 84.2°F (29°C).

Temperature

September reveals a small adjustment in temperature, transitioning from an average high of a tropical 91.9°F (33.3°C) in August to a moderately hot 84.2°F (29°C). The average low-temperature, in September, in Chandler, is an enjoyable 64.4°F (18°C).

Heat index

For September, the heat index is evaluated at a tropical 89.6°F (32°C). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.
The standards for the heat index are set for locations in shade and under light breezes. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.

Humidity

The average relative humidity in September is 68%.

Rainfall

In September, the rain falls for 9.1 days. Throughout September, 0.91" (23mm) of precipitation is accumulated. Throughout the year, there are 87.3 rainfall days, and 8.74" (222mm) of precipitation is accumulated.

Snowfall

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

Daylight

In September, the average length of the day is 12h and 23min.
On the first day of September, sunrise is at 7:00 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:12 pm CDT.

Sunshine

The average sunshine in September in Chandler is 8.6h.

UV index

In September, the average daily maximum UV index is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A daily high UV index of 5 in September leads to these guidelines:
Make use of precautions - It is urged to ward off sun damage. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
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Frequently asked questions

How hot is September in Chandler?

In September, the average high-temperature and low-temperature in Chandler are 84.2°F (29°C) and 64.4°F (18°C) respectively. In September, the average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, is evaluated at 89.6°F (32°C).

What is the average humidity in September in Chandler?

In Chandler, the average relative humidity in September is 68%.

How much does it rain in Chandler in September?

In Chandler, in September, during 9.1 rainfall days, 0.91" (23mm) of precipitation is typically accumulated.

When it does not snow in Chandler?

In Chandler, snow does not fall in April through October.

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

In Chandler, Oklahoma, the average day length in September is 12h and 23min.

When are sunrise and sunset in September in Chandler?

In September, on the first day of the month, sunrise is at 7:00 am and sunset at 7:54 pm. On the last day of the month, in Chandler, Oklahoma, sunrise is at 7:22 am and sunset at 7:12 pm CDT.

How long on average sun shines in September in Chandler?

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

What is the UV index reading in September in Chandler?

In September, the average daily maximum UV index in Chandler, Oklahoma, is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe 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
Chandler, OK

Average temperature in September - Chandler, OK
  • Average high temperature in September: 84.2°F

The warmest month (with the highest average high temperature) is July (92.3°F).
The month with the lowest average high temperature is January (47.8°F).

  • Average low temperature in September: 64.4°F

The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

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Average pressure in September
Chandler, OK

Average pressure in September - Chandler, 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 (29.88"Hg).

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Average wind speed in September
Chandler, OK

Average wind speed in September - Chandler, OK
  • Average wind speed in September: 8.1mph

The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is August (7.9mph).

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Average humidity in September
Chandler, OK

Average humidity in September - Chandler, OK
  • Average humidity in September: 68%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is August (63%).

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Average rainfall in September
Chandler, OK

Average rainfall in September - Chandler, OK
  • Average rainfall in September: 0.91"

The wettest month (with the highest rainfall) is May (1.61").
The driest months (with the least rainfall) are February, November and December (0.28").

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Average rainfall days in September
Chandler, OK

Average rainfall days in September - Chandler, OK
  • Average rainfall days in September: 9.1 days

The month with the highest number of rainy days is May (10.7 days).
The month with the least rainy days is December (3.4 days).

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Average snowfall in September
Chandler, OK

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

The month with the highest snowfall is February (0.43").
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
Chandler, OK

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

The month with the highest number of snowfall days is February (1.7 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
Chandler, OK

Average daylight in September / Average sunshine in September - Chandler, 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 18min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

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Average sunshine days in September
Chandler, OK

Average sunshine days in September - Chandler, OK
  • Average sunshine days in September: 17.9 days

The month with the most sunshine days is December (26.1 days).
The month with the least sunshine days is May (17.3 days).

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Average UV index in September
Chandler, OK

Average UV index in September - Chandler, 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
Chandler, OK

Average cloud cover in September - Chandler, OK
  • Average cloud cover in September: 27

The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 19).

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Average visibility in September
Chandler, OK

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

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