September weather forecast
Jay, OK

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Jay, Oklahoma, with temperature in the range of an average low of 62.4°F (16.9°C) and an average high of 82°F (27.8°C).

Temperature

As September begins, there is a minor decrease in the average high-temperature, softly falling from a tropical 89.2°F (31.8°C) in August to a moderately hot 82°F (27.8°C). Jay's temperature tends to fall to an average low of 62.4°F (16.9°C) during the nights of September.

Heat index

The heat index value during September is calculated to be a tropical 87.8°F (31°C). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.
Heat index values are typically calculated for conditions of shade and a light breeze. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', blends air temperature and moisture content to represent the felt temperature to humans. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.

Humidity

In Jay, the average relative humidity in September is 72%.

Rainfall

In September, the rain falls for 12.4 days. Throughout September, 2.83" (72mm) of precipitation is accumulated. In Jay, during the entire year, the rain falls for 143.6 days and collects up to 32.52" (826mm) of precipitation.

Snowfall

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

Daylight

In Jay, the average length of the day in September is 12h and 24min.
On the first day of the month, sunrise is at 6:51 am and sunset at 7:46 pm. On the last day of September, sunrise is at 7:14 am and sunset at 7:03 pm CDT.

Sunshine

In September, the average sunshine is 9.4h.

UV index

In Jay, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum UV index of 5 during September translates into these guidelines:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Experience reduced UV exposure by about half when donning a wide-brim hat.
Updated: Aug 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

In September, the average high-temperature and low-temperature are 82°F (27.8°C) and 62.4°F (16.9°C) respectively. In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 87.8°F (31°C).

What is the average humidity in September?

In Jay, the average relative humidity in September is 72%.

How much does it rain in Jay in September?

In Jay, during September, the rain falls for 12.4 days and regularly aggregates up to 2.83" (72mm) of precipitation.

When it does not snow?

April, June through October are months without snowfall.

What is the average length of the day in September?

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

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:51 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:03 pm CDT.

How many hours of sunshine does Jay have in September?

The average sunshine duration in September is 9.4h.

How high is the UV index in September?

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
Jay, OK

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

  • Average low temperature in September: 62.4°F

The month with the highest average low temperature is July (70.5°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

Average pressure in September
Jay, OK

Average pressure in September - Jay, OK
  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in September
Jay, OK

Average wind speed in September - Jay, 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).

Average humidity in September
Jay, OK

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

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are August and October (70%).

Average rainfall in September
Jay, OK

Average rainfall in September - Jay, OK
  • Average rainfall in September: 2.83"

The wettest month (with the highest rainfall) is May (4.96").
The driest month (with the least rainfall) is February (1.65").

Average rainfall days in September
Jay, OK

Average rainfall days in September - Jay, OK
  • Average rainfall days in September: 12.4 days

The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is December (7.5 days).

Average snowfall in September
Jay, OK

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

The month with the highest snowfall is February (1.34").
The months with the least snowfall are April, June, July, August, September and October (0").

Average snowfall days in September
Jay, OK

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

The month with the highest number of snowfall days is February (3.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Jay, 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 2min

The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 30min).

Average sunshine days in September
Jay, OK

Average sunshine days in September - Jay, OK
  • Average sunshine days in September: 15.1 days

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is April (12.9 days).

Average UV index in September
Jay, OK

Average UV index in September - Jay, 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).

Average cloud cover in September
Jay, OK

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

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

Average visibility in September
Jay, OK

Average visibility in September - Jay, 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).

Jay, Oklahoma, USA

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