September weather forecast
Adair, OK

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Adair, Oklahoma, with temperature in the range of an average high of 82.9°F (28.3°C) and an average low of 63.3°F (17.4°C).

Temperature

The transition to September results in a modest reduction in average high-temperature, moving from a tropical 89.8°F (32.1°C) in August to a moderately hot 82.9°F (28.3°C). During the month of September, an average temperature of 63.3°F (17.4°C) is noted during the nights in Adair.

Heat index

In September, the average heat index is evaluated at a tropical 87.8°F (31°C). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.
Heat index values are typically calculated for conditions of shade and a light breeze. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', determines the feeling of heat when you account for the relative humidity. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Taking into account that direct sunlight can boost the heat effect, the heat index may rise by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.

Humidity

The average relative humidity in September in Adair is 71%.

Rainfall

In Adair, in September, it is raining for 11.7 days, with typically 3.11" (79mm) of accumulated precipitation. In Adair, during the entire year, the rain falls for 137.3 days and collects up to 30.04" (763mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in September is 12h and 24min.
On the first day of September in Adair, sunrise is at 6:53 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:05 pm CDT.

Sunshine

In Adair, the average sunshine in September is 9.2h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: In September, the maximum UV index of 5 suggests these recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
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Frequently asked questions

How hot is it in Adair in September?

Adair in September has an average high-temperature of 82.9°F (28.3°C) and an average low-temperature of 63.3°F (17.4°C). In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 87.8°F (31°C).

What is the average humidity in September in Adair?

The average relative humidity in September in Adair, Oklahoma, is 71%.

How much does it rain in Adair in September?

In Adair, Oklahoma, in September, during 11.7 rainfall days, 3.11" (79mm) of precipitation is typically accumulated.

When it does not snow in Adair?

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

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

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

What time are sunrise and sunset in September in Adair?

In September, on the first day of the month, sunrise is at 6:53 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:05 pm CDT.

How many hours of sunshine does Adair have in September?

The average sunshine duration in September is 9.2h.

What is the UV index intensity in September in Adair?

In September, the average daily maximum UV index in Adair is 5. A UV Index reading 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
Adair, OK

Average temperature in September - Adair, OK
  • Average high temperature in September: 82.9°F

The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (45.3°F).

  • Average low temperature in September: 63.3°F

The month with the highest average low temperature is July (71.6°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

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Average pressure in September
Adair, OK

Average pressure in September - Adair, 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 (29.91"Hg).

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Average wind speed in September
Adair, OK

Average wind speed in September - Adair, OK
  • Average wind speed in September: 7.4mph

The windiest months (with the highest average wind speed) are March and April (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).

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Average humidity in September
Adair, OK

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

The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in September
Adair, OK

Average rainfall in September - Adair, OK
  • Average rainfall in September: 3.11"

The wettest month (with the highest rainfall) is May (4.72").
The driest month (with the least rainfall) is February (1.42").

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Average rainfall days in September
Adair, OK

Average rainfall days in September - Adair, OK
  • Average rainfall days in September: 11.7 days

The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (6.9 days).

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Average snowfall in September
Adair, OK

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

The month with the highest snowfall is February (1.61").
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
Adair, OK

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

The month with the highest number of snowfall days is February (2.4 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
Adair, OK

Average daylight in September / Average sunshine in September - Adair, 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 1min

The months with the most sunshine are July and August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

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Average sunshine days in September
Adair, OK

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

The month with the most sunshine days is January (21.7 days).
The month with the least sunshine days is April (13 days).

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Average UV index in September
Adair, OK

Average UV index in September - Adair, 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
Adair, OK

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

The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 22).

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Average visibility in September
Adair, OK

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

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