September weather forecast
Peoria, OK

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Weather in September

The first month of the autumn, September, is still a warm month in Peoria, Oklahoma, with an average temperature fluctuating between 81.1°F (27.3°C) and 61.7°F (16.5°C).

Temperature

With the commencement of September, Peoria records a moderate temperature decline, with the average high easing from August's hot 88.3°F (31.3°C) to a warm 81.1°F (27.3°C). Peoria's temperature lowers to a mean of 61.7°F (16.5°C) during the nights in September.

Heat index

For September, the heat index is computed to be a tropical 86°F (30°C). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. 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. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.

Humidity

In Peoria, the average relative humidity in September is 73%.

Rainfall

In Peoria, during September, the rain falls for 11.5 days and regularly aggregates up to 2.2" (56mm) of precipitation. Throughout the year, there are 134.6 rainfall days, and 25.08" (637mm) of precipitation is accumulated.

Snowfall

April, June through October are months without snowfall.

Daylight

The average length of the day in September in Peoria, Oklahoma, is 12h and 24min.
On the first day of the month, sunrise is at 6:50 am and sunset at 7:46 pm. On the last day of September, in Peoria, Oklahoma, sunrise is at 7:13 am and sunset at 7:03 pm CDT.

Sunshine

In September, the average sunshine in Peoria is 9.5h.

UV index

The average daily maximum UV index in September in Peoria is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index, 5 in September, converts into the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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Frequently asked questions

What are September temperatures in Peoria?

In September, the average high-temperature and low-temperature in Peoria, Oklahoma, are 81.1°F (27.3°C) and 61.7°F (16.5°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 computed to be 86°F (30°C).

What is the average humidity in September in Peoria?

In Peoria, Oklahoma, the average relative humidity in September is 73%.

How much does it rain in Peoria in September?

In Peoria, during September, the rain falls for 11.5 days and regularly aggregates up to 2.2" (56mm) of precipitation.

When it does not snow in Peoria?

In Peoria, snow does not fall in April, June through October.

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

In Peoria, Oklahoma, the average day length in September is 12h and 24min.

When are sunrise and sunset in September in Peoria?

In September, on the first day of the month, sunrise is at 6:50 am and sunset at 7:46 pm. On the last day of the month, in Peoria, Oklahoma, sunrise is at 7:13 am and sunset at 7:03 pm CDT.

How many hours of sunshine does Peoria have in September?

In Peoria, the average sunshine duration in September is 9.5h.

How high is the UV index in September in Peoria?

In Peoria, Oklahoma, 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 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
Peoria, OK

Average temperature in September - Peoria, OK
  • Average high temperature in September: 81.1°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (43.3°F).

  • Average low temperature in September: 61.7°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (28.2°F).

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Average pressure in September
Peoria, OK

Average pressure in September - Peoria, 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).

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Average wind speed in September
Peoria, OK

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

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7mph).

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Average humidity in September
Peoria, OK

Average humidity in September - Peoria, OK
  • Average humidity in September: 73%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (70%).

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Average rainfall in September
Peoria, OK

Average rainfall in September - Peoria, OK
  • Average rainfall in September: 2.2"

The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is November (1.06").

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Average rainfall days in September
Peoria, OK

Average rainfall days in September - Peoria, OK
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is December (6.4 days).

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Average snowfall in September
Peoria, OK

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

The month with the highest snowfall is February (0.87").
The months with the least snowfall are April, June, July, August, September and October (0").

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Average snowfall days in September
Peoria, OK

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

The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in September: 9h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).

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Average sunshine days in September
Peoria, OK

Average sunshine days in September - Peoria, OK
  • Average sunshine days in September: 16.5 days

The month with the most sunshine days is December (21.8 days).
The month with the least sunshine days is May (12.8 days).

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Average UV index in September
Peoria, OK

Average UV index in September - Peoria, OK
  • Average UV index in September: 5

The month with the highest UV index is June (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
Peoria, OK

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

The months with the most cloud cover are February and March (Cloud cover 44).
The months with the least cloud cover are July and August (Cloud cover 24).

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Average visibility in September
Peoria, OK

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

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