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 decreases in September, shifting from a fiery hot 97.2°F (36.2°C) in August to a tropical 87.3°F (30.7°C). September witnesses an average low-temperature hovering around a pleasant 68.4°F (20.2°C).Heat index
During September, the heat index is appraised at a tropical 93.2°F (34°C). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.Understanding the heat index involves considering values for shaded locales with light wind. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are highly important for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Humidity
In Devol, the average relative humidity in September is 60%.Rainfall
In September, the rain falls for 13 days. Throughout September, 2.36" (60mm) of precipitation is accumulated. Throughout the year, there are 111 rainfall days, and 22.24" (565mm) of precipitation is accumulated.Snowfall
In Devol, snow does not fall in May through October.Daylight
In Devol, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 7:08 am and sunset at 7:59 pm. On the last day of September, sunrise is at 7:28 am and sunset at 7:19 pm CDT.
Sunshine
In Devol, the average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 6 transforms into these recommendations:
Deflect overexposure. Sun protection is a necessity. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Devol have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Devol have in September?
How high is the UV index in September?
Average temperature in September
Devol, OK
- Average high temperature in September: 87.3°F
The warmest month (with the highest average high temperature) is August (97.2°F).
The month with the lowest average high temperature is December (52.9°F).
- Average low temperature in September: 68.4°F
The month with the highest average low temperature is July (75.9°F).
The coldest month (with the lowest average low temperature) is January (35.4°F).
Average pressure in September
Devol, OK
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
Devol, OK
- Average wind speed in September: 8.3mph
The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is September (8.3mph).
Average humidity in September
Devol, OK
- Average humidity in September: 60%
The month with the highest relative humidity is May (66%).
The month with the lowest relative humidity is August (50%).
Average rainfall in September
Devol, OK
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is May (3.62").
The driest months (with the least rainfall) are January and February (0.94").
Average rainfall days in September
Devol, OK
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is May (14.2 days).
The month with the least rainy days is January (4.7 days).
Average snowfall in September
Devol, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Devol, OK
- Average snowfall days in September: 0.1 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 and October (0 days).
Average daylight in September /
Average sunshine in September
Devol, 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 18min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in September
Devol, OK
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is January (25 days).
The month with the least sunshine days is May (14.3 days).
Average UV index in September
Devol, OK
- Average UV index in September: 6
The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Devol, OK
- Average cloud cover in September: 27
The month with the most cloud cover is March (Cloud cover 32).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in September
Devol, 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).
Devol, Oklahoma, USA
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