September weather forecastByars, OK
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Byars, Oklahoma, with an average temperature ranging between max 84.2°F (29°C) and min 65.5°F (18.6°C).Temperature
The shift from August to September includes a small decrease in the average high-temperature, from a tropical 93°F (33.9°C) to a warm 84.2°F (29°C). Byars's average low-temperature in September is measured at an enjoyable 65.5°F (18.6°C).Heat index
The heat index in September is calculated to be a hot 89.6°F (32°C). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.In the scope of the heat index, its values resonate with shade and light wind conditions. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an estimation of the warmth sensation when considering humidity levels. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
Humidity
The average relative humidity in September is 68%.Rainfall
In Byars, in September, during 13.5 rainfall days, 2.76" (70mm) of precipitation is typically accumulated. Throughout the year, there are 129.2 rainfall days, and 26.93" (684mm) of precipitation is accumulated.Snowfall
In Byars, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September, sunrise is at 7:01 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:13 pm CDT.
Sunshine
The average sunshine in September is 8.4h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: A maximum UV index of 5 in September translates into the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Byars, OK
- Average high temperature in September: 84.2°F
The warmest month (with the highest average high temperature) is August (93°F).
The month with the lowest average high temperature is January (49.3°F).
- Average low temperature in September: 65.5°F
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure in September
Byars, 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
Byars, OK
- Average wind speed in September: 7.9mph
The windiest month (with the highest average wind speed) is March (11.3mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).
Average humidity in September
Byars, OK
- Average humidity in September: 68%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (61%).
Average rainfall in September
Byars, OK
- Average rainfall in September: 2.76"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is January (1.26").
Average rainfall days in September
Byars, OK
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (14.9 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in September
Byars, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.54").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Byars, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.1 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
Byars, OK
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 24min
The months with the most sunshine are July and August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in September
Byars, OK
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is January (23 days).
The month with the least sunshine days is May (13.3 days).
Average UV index in September
Byars, 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
Byars, OK
- Average cloud cover in September: 28
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
Byars, 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).





