September weather forecastNewalla, OK
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Newalla, Oklahoma, with an average temperature ranging between min 64.8°F (18.2°C) and max 84.2°F (29°C).Temperature
Newalla's progression into September involves a gentle drop in the average high-temperature, from a tropical 92.3°F (33.5°C) in August to a moderately hot 84.2°F (29°C). An average low-temperature of 64.8°F (18.2°C) is expected in Newalla during September.Heat index
In September, the average heat index is computed to be a tropical 89.6°F (32°C). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.Heat index details are generally centered around shaded locations and a mild breeze. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an aggregate value of air's warmth and moisture to show the human-felt temperature. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
Humidity
The average relative humidity in September is 67%.Rainfall
In Newalla, in September, it is raining for 11.9 days, with typically 2.64" (67mm) of accumulated precipitation. In Newalla, Oklahoma, during the entire year, the rain falls for 121.9 days and collects up to 25.67" (652mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Newalla, the average length of the day in September is 12h and 23min.On the first day of September in Newalla, sunrise is at 7:01 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:13 pm CDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: During September, 5 as the daily maximum UV index converts into the following advice:
Take necessary precautions - Protection from skin and eye injury is mandatory. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Newalla, OK
- Average high temperature in September: 84.2°F
The warmest month (with the highest average high temperature) is July (92.5°F).
The month with the lowest average high temperature is January (48.6°F).
- Average low temperature in September: 64.8°F
The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (32.2°F).
Average pressure in September
Newalla, 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
Newalla, OK
- Average wind speed in September: 8.3mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest months (with the lowest average wind speed) are July and August (8.1mph).
Average humidity in September
Newalla, OK
- Average humidity in September: 67%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is August (62%).
Average rainfall in September
Newalla, OK
- Average rainfall in September: 2.64"
The wettest month (with the highest rainfall) is May (4.06").
The driest months (with the least rainfall) are January and February (1.14").
Average rainfall days in September
Newalla, OK
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in September
Newalla, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.65").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Newalla, 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
Newalla, 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 48min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is August (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in September
Newalla, OK
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is January (23.5 days).
The month with the least sunshine days is May (14.4 days).
Average UV index in September
Newalla, 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
Newalla, OK
- Average cloud cover in September: 27
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
Newalla, 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).





