September weather forecast
Arcadia, OK

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Weather in September

The first month of the autumn, September, is still a warm month in Arcadia, Oklahoma, with temperature in the range of an average low of 65.7°F (18.7°C) and an average high of 84.6°F (29.2°C).

Temperature

September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a hot 92.8°F (33.8°C) in August to a moderately hot 84.6°F (29.2°C). Arcadia's average low-temperature during September nights is observed to be a refreshing 65.7°F (18.7°C).

Heat index

During September, the heat index is appraised at a hot 89.6°F (32°C). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.
Know that the heat index computations account for shaded terrains and slight winds. 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 'feels like' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.

Humidity

The average relative humidity in September in Arcadia, Oklahoma, is 65%.

Rainfall

In Arcadia, in September, it is raining for 13.1 days, with typically 2.68" (68mm) of accumulated precipitation. Throughout the year, there are 119.2 rainfall days, and 23.86" (606mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall.

Daylight

In Arcadia, the average length of the day in September is 12h and 23min.
On the first day of September, sunrise is at 7:01 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:14 pm CDT.

Sunshine

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

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 5 in September transforms into the following instructions:
Be vigilant - Preventing sunburn is recommended. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

In September, in Arcadia, the average high-temperature is 84.6°F (29.2°C), and the average low-temperature is 65.7°F (18.7°C). The average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, in September is appraised at 89.6°F (32°C).

What is the average humidity in September?

In September, the average relative humidity is 65%.

How much does it rain in September?

In September, the rain falls for 13.1 days. Throughout September, 2.68" (68mm) of precipitation is accumulated.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Arcadia have in September?

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

When are sunrise and sunset in September?

On the first day of September, sunrise is at 7:01 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:14 pm CDT.

How long on average sun shines in September?

The average sunshine duration in September is 8.6h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to 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
Arcadia, OK

Average temperature in September - Arcadia, OK
  • Average high temperature in September: 84.6°F

The warmest month (with the highest average high temperature) is July (93.6°F).
The month with the lowest average high temperature is January (48.4°F).

  • Average low temperature in September: 65.7°F

The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

Average pressure in September
Arcadia, OK

Average pressure in September - Arcadia, OK
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).

Average wind speed in September
Arcadia, OK

Average wind speed in September - Arcadia, OK
  • Average wind speed in September: 8.8mph

The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).

Average humidity in September
Arcadia, OK

Average humidity in September - Arcadia, OK
  • Average humidity in September: 65%

The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (60%).

Average rainfall in September
Arcadia, OK

Average rainfall in September - Arcadia, OK
  • Average rainfall in September: 2.68"

The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is December (0.91").

Average rainfall days in September
Arcadia, OK

Average rainfall days in September - Arcadia, OK
  • Average rainfall days in September: 13.1 days

The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is January (4.3 days).

Average snowfall in September
Arcadia, OK

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

The month with the highest snowfall is January (1.06").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Arcadia, OK

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

The month with the highest number of snowfall days is February (2.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Arcadia, 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 months with the most sunshine are July and August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

Average sunshine days in September
Arcadia, OK

Average sunshine days in September - Arcadia, OK
  • Average sunshine days in September: 14.8 days

The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is May (14.4 days).

Average UV index in September
Arcadia, OK

Average UV index in September - Arcadia, 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).

Average cloud cover in September
Arcadia, OK

Average cloud cover in September - Arcadia, OK
  • Average cloud cover in September: 26

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

Average visibility in September
Arcadia, OK

Average visibility in September - Arcadia, 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).

Arcadia, Oklahoma, USA

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