Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The shift from August to September involves a decrease in the average high-temperature, from a torrid 96.3°F (35.7°C) to a tropical 86.9°F (30.5°C). September in Ryan, Oklahoma, witnesses an average low-temperature hovering around a refreshing 67.6°F (19.8°C).Heat index
Throughout September, the heat index is appraised at a hot 93.2°F (34°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.It is essential to grasp that the heat index's numbers are for shade and light wind settings. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Humidity
In September, the average relative humidity is 62%.Rainfall
In Ryan, Oklahoma, in September, during 11.4 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. Throughout the year, in Ryan, there are 99.5 rainfall days, and 15.79" (401mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In Ryan, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 7:05 am and sunset at 7:57 pm. On the last day of September, sunrise is at 7:26 am and sunset at 7:16 pm CDT.
Sunshine
In Ryan, the average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, the UV index of 5 transforms into the following advice:
Be vigilant - Suggestions to stave off sun damage are provided. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Frequently asked questions
How hot does it get in Ryan in September?
What is the average humidity in September in Ryan?
How much does it rain in Ryan in September?
When it does not snow in Ryan?
How many hours of daylight does Ryan have in September?
When is the sunrise / sunset in September in Ryan?
How long on average sun shines in September in Ryan?
What is the UV index intensity in September in Ryan?
Average temperature in September
Ryan, OK
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is August (96.3°F).
The month with the lowest average high temperature is January (52.7°F).
- Average low temperature in September: 67.6°F
The month with the highest average low temperature is July (74.7°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in September
Ryan, OK
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Ryan, OK
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is September (8mph).
Average humidity in September
Ryan, OK
- Average humidity in September: 62%
The month with the highest relative humidity is May (72%).
The month with the lowest relative humidity is August (53%).
Average rainfall in September
Ryan, OK
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is May (2.87").
The driest months (with the least rainfall) are February and November (0.55").
Average rainfall days in September
Ryan, OK
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is May (12.8 days).
The months with the least rainy days are January and December (4.3 days).
Average snowfall in September
Ryan, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.83").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Ryan, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.7 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
Ryan, OK
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in September
Ryan, OK
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is January (25.9 days).
The month with the least sunshine days is May (15.3 days).
Average UV index in September
Ryan, 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
Ryan, OK
- Average cloud cover in September: 28
The month with the most cloud cover is March (Cloud cover 34).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in September
Ryan, 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).
Ryan, Oklahoma, USA
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