September weather forecast
Sand Springs, OK

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Weather in September

September in Sand Springs, Oklahoma marks the onset of fall, bringing with it cooler temperatures. Notably, this month has the highest rainfall, with an average of 3.54" (90mm) of rain falling over 11.6 days. As the city transitions from the intense summer heat, the foliage begins to show first signs of autumn's vibrant colors. Parks fill with people enjoying cooler temperatures and the scenery change. Residents brace themselves for shorter days, sweetly crisp apples, and the autumn chill in the air.

Temperature

A mild drop in Sand Springs's average high-temperature is observed in September, transitioning from a hot 90.5°F (32.5°C) in August to a warm 83.3°F (28.5°C). Throughout the month of September, the average temperature dips to a refreshing 64°F (17.8°C) at night.

Heat index

The heat index value during September is appraised at a tropical 89.6°F (32°C). Continuous exposure and activity could induce a sense of tiredness and subsequently, heat cramps.
When considering the heat index, it's pivotal to note it is for shade and mild 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 'felt air temperature' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.

Humidity

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

Rainfall

In Sand Springs, in September, it is raining for 11.6 days, with typically 3.54" (90mm) of accumulated precipitation. Throughout the year, in Sand Springs, Oklahoma, there are 131.7 rainfall days, and 30.04" (763mm) of precipitation is accumulated.

Snowfall

April through October are months without snowfall.

Daylight

In Sand Springs, 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, in Sand Springs, sunrise is at 7:19 am and sunset at 7:09 pm CDT.

Sunshine

In September, the average sunshine is 8.8h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 5 suggests this advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. When the Sun is at its strongest around midday, find shade and limit exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.

Frequently asked questions

How hot is it in September?

An average high-temperature, in September, in Sand Springs, is 83.3°F (28.5°C) and the average low-temperature is 64°F (17.8°C). In September, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is appraised at 89.6°F (32°C).

What is the average humidity in September in Sand Springs?

The average relative humidity in September is 70%.

How much does it rain in September?

In Sand Springs, in September, it is raining for 11.6 days, with typically 3.54" (90mm) of accumulated precipitation.

When it does not snow in Sand Springs?

In Sand Springs, snow does not fall in April through October.

What is the average length of the day in September in Sand Springs?

The average day length in September is 12h and 23min.

When are sunrise and sunset in September?

On the first day of September, 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 7:09 pm CDT.

How many hours of sunshine does Sand Springs have in September?

In September, the average sunshine duration in Sand Springs, Oklahoma, is 8.8h.

What is the UV index intensity in September in Sand Springs?

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium health risk 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
Sand Springs, OK

Average temperature in September - Sand Springs, OK
  • Average high temperature in September: 83.3°F

The warmest month (with the highest average high temperature) is July (91.2°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 (72.5°F).
The coldest month (with the lowest average low temperature) is January (31.1°F).

Average pressure in September
Sand Springs, OK

Average pressure in September - Sand Springs, 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).

Average wind speed in September
Sand Springs, OK

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

The windiest months (with the highest average wind speed) are March and April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

Average humidity in September
Sand Springs, OK

Average humidity in September - Sand Springs, 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%).

Average rainfall in September
Sand Springs, OK

Average rainfall in September - Sand Springs, OK
  • Average rainfall in September: 3.54"

The wettest month (with the highest rainfall) is May (5.2").
The driest month (with the least rainfall) is January (1.22").

Average rainfall days in September
Sand Springs, OK

Average rainfall days in September - Sand Springs, OK
  • Average rainfall days in September: 11.6 days

The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (5.9 days).

Average snowfall in September
Sand Springs, OK

Average snowfall in September - Sand Springs, OK
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.22").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Sand Springs, OK

Average snowfall days in September - Sand Springs, 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).

Average daylight in September /
Average sunshine in September
Sand Springs, OK

Average daylight in September / Average sunshine in September - Sand Springs, 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: 8h and 5min

The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in September
Sand Springs, OK

Average sunshine days in September - Sand Springs, OK
  • Average sunshine days in September: 16.3 days

The month with the most sunshine days is January (22.1 days).
The month with the least sunshine days is April (13.2 days).

Average UV index in September
Sand Springs, OK

Average UV index in September - Sand Springs, 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
Sand Springs, OK

Average cloud cover in September - Sand Springs, OK
  • Average cloud cover in September: 28

The month with the most cloud cover is March (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in September
Sand Springs, OK

Average visibility in September - Sand Springs, 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).

Sand Springs, Oklahoma, USA

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