September weather forecast
Valley Park, OK

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Weather in September

September, the first month of the autumn in Valley Park, is also a moderately hot month, with an average temperature fluctuating between 63.3°F (17.4°C) and 83.3°F (28.5°C).

Temperature

Valley Park's September weather shows a modest shift in high-temperatures, falling from August's tropical 89.8°F (32.1°C) to a moderately hot 83.3°F (28.5°C). In the month of September, Valley Park's average low-temperature falls to a refreshing 63.3°F (17.4°C).

Heat index

During September, the heat index is computed to be a tropical 89.6°F (32°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.
Bear in mind that the heat index values are determined for shaded areas and light breezes. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.

Humidity

The average relative humidity in September is 71%.

Rainfall

In Valley Park, during September, the rain falls for 11.5 days and regularly aggregates up to 3.43" (87mm) of precipitation. In Valley Park, during the entire year, the rain falls for 133 days and collects up to 31.1" (790mm) of precipitation.

Snowfall

April through October are months without snowfall in Valley Park.

Daylight

In September, the average length of the day in Valley Park is 12h and 24min.
On the first day of September in Valley Park, sunrise is at 6:55 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:07 pm CDT.

Sunshine

In Valley Park, Oklahoma, the average sunshine in September is 9h.

UV index

In Valley Park, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.
Note: An average maximum UV index of 5 in September leads to these recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Frequently asked questions

How hot is September in Valley Park?

The high-temperature, in September, in Valley Park, is 83.3°F (28.5°C), while the low-temperature averages to 63.3°F (17.4°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is computed to be 89.6°F (32°C).

What is the average humidity in September in Valley Park?

In September, the average relative humidity in Valley Park, Oklahoma, is 71%.

How much does it rain in Valley Park in September?

In September, in Valley Park, the rain falls for 11.5 days. Throughout September, 3.43" (87mm) of precipitation is accumulated.

When it does not snow in Valley Park?

April through October are months without snowfall.

What is the average length of the day in September in Valley Park?

The average day length in September in Valley Park is 12h and 24min.

What time are sunrise and sunset in September in Valley Park?

On the first day of September in Valley Park, sunrise is at 6:55 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:07 pm CDT.

How long on average sun shines in September in Valley Park?

In Valley Park, the average sunshine duration in September is 9h.

How high is the UV index in September in Valley Park?

The average daily maximum UV index in September in Valley Park, Oklahoma, is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's 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
Valley Park, OK

Average temperature in September - Valley Park, OK
  • Average high temperature in September: 83.3°F

The warmest month (with the highest average high temperature) is July (90.7°F).
The month with the lowest average high temperature is January (45.5°F).

  • Average low temperature in September: 63.3°F

The month with the highest average low temperature is July (72°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).

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Average pressure in September
Valley Park, OK

Average pressure in September - Valley Park, 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 (29.9"Hg).

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Average wind speed in September
Valley Park, OK

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

The windiest month (with the highest average wind speed) is March (10.7mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).

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Average humidity in September
Valley Park, OK

Average humidity in September - Valley Park, OK
  • Average humidity in September: 71%

The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (68%).

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Average rainfall in September
Valley Park, OK

Average rainfall in September - Valley Park, OK
  • Average rainfall in September: 3.43"

The wettest month (with the highest rainfall) is May (5.2").
The driest month (with the least rainfall) is February (1.46").

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Average rainfall days in September
Valley Park, OK

Average rainfall days in September - Valley Park, OK
  • Average rainfall days in September: 11.5 days

The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (6.3 days).

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Average snowfall in September
Valley Park, OK

Average snowfall in September - Valley Park, OK
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.57").
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
Valley Park, OK

Average snowfall days in September - Valley Park, OK
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.3 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
Valley Park, OK

Average daylight in September / Average sunshine in September - Valley Park, 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 0min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

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Average sunshine days in September
Valley Park, OK

Average sunshine days in September - Valley Park, OK
  • Average sunshine days in September: 16 days

The month with the most sunshine days is December (21.8 days).
The months with the least sunshine days are April and May (13.3 days).

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Average UV index in September
Valley Park, OK

Average UV index in September - Valley Park, 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
Valley Park, OK

Average cloud cover in September - Valley Park, OK
  • Average cloud cover in September: 27

The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 21).

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Average visibility in September
Valley Park, OK

Average visibility in September - Valley Park, 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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Valley Park, Oklahoma, USA

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