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 average high-temperature shows a slight dip in September, from August's hot 90.7°F (32.6°C) to a warm 83.3°F (28.5°C). In September, the recorded average low-temperature is a comfortable 63.7°F (17.6°C).Heat index
For most parts of September, the heat index is calculated to be a hot 89.6°F (32°C). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.Realize that the values for the heat index are set for shaded places and light winds. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Humidity
In September, the average relative humidity is 69%.Rainfall
In Osage, in September, during 12.1 rainfall days, 3.31" (84mm) of precipitation is typically accumulated. In Osage, during the entire year, the rain falls for 128.9 days and collects up to 27.72" (704mm) of precipitation.Snowfall
In Osage, snow does not fall in April through October.Daylight
In Osage, the average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 6:57 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:10 pm CDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
In Osage, Oklahoma, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: During September, 5 as the daily maximum UV index converts into the following advice:
Take precautions - Protection against skin and eye damage is obliged. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Osage have in September?
What is the UV index reading in September?
Average temperature in September
Osage, OK
- Average high temperature in September: 83.3°F
The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (46°F).
- Average low temperature in September: 63.7°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).
Average pressure in September
Osage, OK
- Average pressure in September: 29.98"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
Osage, OK
- Average wind speed in September: 8mph
The windiest months (with the highest average wind speed) are March and April (11.1mph).
The calmest months (with the lowest average wind speed) are July and August (7.6mph).
Average humidity in September
Osage, OK
- Average humidity in September: 69%
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and October (66%).
Average rainfall in September
Osage, OK
- Average rainfall in September: 3.31"
The wettest month (with the highest rainfall) is May (4.92").
The driest month (with the least rainfall) is January (1.02").
Average rainfall days in September
Osage, OK
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in September
Osage, 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").
Average snowfall days in September
Osage, 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 and September (0 days).
Average daylight in September /
Average sunshine in September
Osage, 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 4min
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 48min).
Average sunshine days in September
Osage, OK
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is January (23 days).
The month with the least sunshine days is May (13.5 days).
Average UV index in September
Osage, 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).
Average cloud cover in September
Osage, OK
- Average cloud cover in September: 27
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
Osage, 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).
Osage, Oklahoma, USA
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