September weather forecast
Mounds, OK

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Weather in September

September, the first month of the autumn in Mounds, is also a moderately hot month, with an average temperature varying between 83.5°F (28.6°C) and 64°F (17.8°C).

Temperature

With the arrival of September, Mounds experiences a modest decline in average high-temperatures, transitioning from a tropical 90.7°F (32.6°C) in August to a warm 83.5°F (28.6°C). The low-temperature average for Mounds during September stands at a comfortable 64°F (17.8°C).

Heat index

In September, the average heat index is estimated at a hot 89.6°F (32°C). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.
Heat index data is primarily for areas with shade and subjected to light winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.

Humidity

The average relative humidity in September in Mounds, Oklahoma, is 70%.

Rainfall

In September, the rain falls for 11.9 days. Throughout September, 3.39" (86mm) of precipitation is accumulated. In Mounds, during the entire year, the rain falls for 129 days and collects up to 29.41" (747mm) of precipitation.

Snowfall

In Mounds, snow does not fall in March through October.

Daylight

In Mounds, the average length of the day in September is 12h and 23min.
On the first day of the month, sunrise is at 6:56 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:19 am and sunset at 7:08 pm CDT.

Sunshine

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

UV index

The average daily maximum UV index in September in Mounds is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The daily high UV index of 5 during September translates into the following recommendations:
Exercise prevention - Warding off sunburn is urged. Avoiding the Sun during its peak radiation time around midday is a healthy practice. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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Frequently asked questions

How hot does it get in Mounds in September?

An average high-temperature, in September, in Mounds, is 83.5°F (28.6°C) and the average low-temperature is 64°F (17.8°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in September is estimated at 89.6°F (32°C).

What is the average humidity in September in Mounds?

In September, the average relative humidity in Mounds is 70%.

How many days does it rain in September in Mounds?

In Mounds, Oklahoma, in September, it is raining for 11.9 days, with typically 3.39" (86mm) of accumulated precipitation.

When it does not snow in Mounds?

March through October are months without snowfall in Mounds.

How many hours of daylight does Mounds have in September?

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

When is the sunrise / sunset in September in Mounds?

On the first day of September in Mounds, Oklahoma, sunrise is at 6:56 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:08 pm CDT.

How many hours of sunshine does Mounds have in September?

In Mounds, the average sunshine duration in September is 8.6h.

How high is the UV index in September in Mounds?

In Mounds, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium hazard to health 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
Mounds, OK

Average temperature in September - Mounds, OK
  • Average high temperature in September: 83.5°F

The warmest month (with the highest average high temperature) is July (91.6°F).
The month with the lowest average high temperature is January (46.6°F).

  • Average low temperature in September: 64°F

The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).

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Average pressure in September
Mounds, OK

Average pressure in September - Mounds, OK
  • Average pressure in September: 29.99"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in September
Mounds, OK

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

The windiest month (with the highest average wind speed) is March (10.8mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).

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Average humidity in September
Mounds, OK

Average humidity in September - Mounds, OK
  • Average humidity in September: 70%

The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January, August and October (67%).

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Average rainfall in September
Mounds, OK

Average rainfall in September - Mounds, OK
  • Average rainfall in September: 3.39"

The wettest month (with the highest rainfall) is May (5.08").
The driest month (with the least rainfall) is January (1.26").

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Average rainfall days in September
Mounds, OK

Average rainfall days in September - Mounds, OK
  • Average rainfall days in September: 11.9 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 days).

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Average snowfall in September
Mounds, OK

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

The month with the highest snowfall is February (1.18").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").

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Average snowfall days in September
Mounds, OK

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

The month with the highest number of snowfall days is February (2.2 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
Mounds, OK

Average daylight in September / Average sunshine in September - Mounds, 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 48min).

  • Average sunshine in September: 8h and 4min

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
Mounds, OK

Average sunshine days in September - Mounds, OK
  • Average sunshine days in September: 16.6 days

The month with the most sunshine days is January (22.2 days).
The month with the least sunshine days is May (14.2 days).

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Average UV index in September
Mounds, OK

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

The months with the highest UV index are June, July and August (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
Mounds, OK

Average cloud cover in September - Mounds, OK
  • Average cloud cover in September: 29

The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 21).

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Average visibility in September
Mounds, OK

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

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