September weather forecastRosston, OK
September
Weather in September
September, the first month of the autumn in Rosston, is also a moderately hot month, with an average temperature ranging between max 83.8°F (28.8°C) and min 64.9°F (18.3°C).Temperature
Rosston's weather in September involves a mild decrease in the average high-temperature, moving down slightly from August's tropical 91.9°F (33.3°C) to a moderately hot 83.8°F (28.8°C). Rosston experiences an average low-temperature of 64.9°F (18.3°C) in the month of September.Heat index
September's average heat index is evaluated at a tropical 86°F (30°C). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.Note that heat index values are valued for light wind and location in the shade. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
In September, the average relative humidity in Rosston is 58%.Rainfall
In Rosston, in September, it is raining for 11.4 days, with typically 1.3" (33mm) of accumulated precipitation. Throughout the year, there are 96.5 rainfall days, and 16.46" (418mm) of precipitation is accumulated.Snowfall
In Rosston, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 24min.On the first day of September, sunrise is at 7:11 am and sunset at 8:07 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:24 pm CDT.
Sunshine
The average sunshine in September is 9h.UV index
In Rosston, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 5 translates into these guidelines:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rosston, OK
- Average high temperature in September: 83.8°F
The warmest month (with the highest average high temperature) is July (94.1°F).
The month with the lowest average high temperature is December (46.9°F).
- Average low temperature in September: 64.9°F
The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (30.9°F).
Average pressure in September
Rosston, OK
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Rosston, OK
- Average wind speed in September: 11.5mph
The windiest month (with the highest average wind speed) is April (13.9mph).
The calmest month (with the lowest average wind speed) is August (10.3mph).
Average humidity in September
Rosston, OK
- Average humidity in September: 58%
The month with the highest relative humidity is May (60%).
The month with the lowest relative humidity is July (52%).
Average rainfall in September
Rosston, OK
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is October (2.2").
The driest month (with the least rainfall) is February (0.55").
Average rainfall days in September
Rosston, OK
- Average rainfall days in September: 11.4 days
The month with the highest number of rainy days is August (12.8 days).
The month with the least rainy days is January (3.2 days).
Average snowfall in September
Rosston, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.65").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Rosston, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.2 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
Rosston, OK
- Average daylight in September: 12h and 24min
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 0min
The months with the most sunshine are June and July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in September
Rosston, OK
- Average sunshine days in September: 15.9 days
The month with the most sunshine days is January (25.8 days).
The month with the least sunshine days is August (15.1 days).
Average UV index in September
Rosston, 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
Rosston, OK
- Average cloud cover in September: 23
The month with the most cloud cover is April (Cloud cover 31).
The month with the least cloud cover is June (Cloud cover 17).
Average visibility in September
Rosston, 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).
