September weather forecast
Afton, OK

Weather in September

September, the first month of the autumn, in Afton, is still a warm month, with average temperature varying between 82°F (27.8°C) and 62.4°F (16.9°C).

Temperature

In Afton, the average high-temperature slightly decreases, from a tropical 89.2°F (31.8°C) in August, to a warm 82°F (27.8°C). In September, in Afton, the average low-temperature is 62.4°F (16.9°C).

Heat index

The average heat index is appraised at a tropical 86.9°F (30.5°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'feels like', 'real feel', or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like pregnancy, wind, differences in body mass, height, and shape, and activity influence one's weather impression. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Afton, Oklahoma, the average relative humidity is 72%.

Rainfall

In Afton, during 9.7 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. Throughout the year, there are 112.7 rainfall days, and 14.33" (364mm) of precipitation is accumulated.

Snowfall

April, June through October are months without snowfall.

Daylight

In Afton, the average length of the day is 12.4h.

Sunshine

The average sunshine in September is 9.3h.

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 5 transform into the following instructions:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
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FAQ

What is the temperature in September in Afton?

The average high-temperature, in September, in Afton, Oklahoma, is 82°F (27.8°C), while the average low-temperature is 62.4°F (16.9°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, in September is appraised at 86.9°F (30.5°C).

What is the average humidity in September in Afton?

The average relative humidity in September in Afton, Oklahoma, is 72%.

How many days does it rain in September in Afton?

In Afton, in September, it is raining for 9.7 days, with typically 1.46" (37mm) of accumulated precipitation.

When it does not snow in Afton?

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

How many hours of daylight does Afton have in September?

The average length of the day in September is 12.4h.

How long on average sun shines in September in Afton?

In September, the average sunshine in Afton, Oklahoma, is 9.3h.

What is the UV index reading in September in Afton?

In Afton, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to the UV radiation.

Average temperature in September
Afton, OK

Average temperature in September - Afton, OK
  • Average high temperature in September: 82°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 (44.4°F).

  • Average low temperature in September: 62.4°F

The month with the highest average low temperature is July (70.9°F).
The coldest month (with the lowest average low temperature) is January (29.3°F).

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Average pressure in September
Afton, OK

Average pressure in September - Afton, OK
  • Average pressure in September: 30.01"

The month with the highest atmospheric pressure is January (30.17").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed in September
Afton, OK

Average wind speed in September - Afton, OK
  • Average wind speed in September: 7.5mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).

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Average humidity in September
Afton, OK

Average humidity in September - Afton, OK
  • Average humidity in September: 72%

The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is October (69%).

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Average rainfall in September
Afton, OK

Average rainfall in September - Afton, OK
  • Average rainfall in September: 1.46"

The wettest month (with the highest rainfall) is May (2.32").
The driest month (with the least rainfall) is November (0.51").

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Average rainfall days in September
Afton, OK

Average rainfall days in September - Afton, OK
  • Average rainfall days in September: 9.7 days

Months with the highest number of rainy days are May and June (12.4 days).
The month with the least rainy days is December (4.9 days).

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Average snowfall in September
Afton, OK

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

The month with the highest snowfall is February (0.43").
Months with the least snowfall are April, June, July, August, September and October (0").

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Average snowfall days in September
Afton, OK

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

The month with the highest number of snowfall days is February (2.8 days).
Months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Afton, OK
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.6h).
The month with the shortest days is December (Average daylight: 9.7h).

  • Average sunshine in September: 9.3h

The month with the most sunshine is July (Average sunshine: 10.8h).
Months with the least sunshine are January and December (Average sunshine: 5.5).

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Average sunshine days in September
Afton, OK

Average sunshine days in September - Afton, OK
  • Average sunshine days in September: 17.5 days

The month with the most sunshine days is December (22.8 days).
The month with the least sunshine days is April (14.8 days).

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Average UV index in September
Afton, OK

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

Months with the highest UV index are June and July (UV index 7).
Months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in September
Afton, OK

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

The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 23).

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Average visibility in September
Afton, OK

Average visibility in September - Afton, OK
  • Average visibility in September: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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