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 shift from August to September includes a minor decrease in the average high-temperature, lightly dropping from a hot 92.3°F (33.5°C) to a moderately hot 85.1°F (29.5°C). Cedar Knobb's nighttime average of 63°F (17.2°C) during September reflects a substantial decrease from the daytime temperature.Heat index
The heat index value for September is calculated to be a hot 93.2°F (34°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Humidity
In September, the average relative humidity in Cedar Knobb is 70%.Rainfall
In Cedar Knobb, in September, it is raining for 12.3 days, with typically 2.68" (68mm) of accumulated precipitation. In Cedar Knobb, during the entire year, the rain falls for 149.7 days and collects up to 35.08" (891mm) of precipitation.Snowfall
April through October are months without snowfall in Cedar Knobb.Daylight
In Cedar Knobb, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 6:50 am and sunset at 7:44 pm. On the last day of September, in Cedar Knobb, sunrise is at 7:12 am and sunset at 7:02 pm CDT.
Sunshine
In Cedar Knobb, the average sunshine in September is 9.5h.UV index
In Cedar Knobb, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum UV index of 5 in September translates into the following recommendations:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Frequently asked questions
How hot is September in Cedar Knobb?
What is the average humidity in September in Cedar Knobb?
How many days does it rain in September in Cedar Knobb?
When it does not snow in Cedar Knobb?
What is the average length of the day in September in Cedar Knobb?
When is the sunrise / sunset in September in Cedar Knobb?
How many hours of sunshine does Cedar Knobb have in September?
What is the UV index reading in September in Cedar Knobb?
Average temperature in September
Cedar Knobb, OK
- Average high temperature in September: 85.1°F
The warmest month (with the highest average high temperature) is July (93.4°F).
The month with the lowest average high temperature is January (48°F).
- Average low temperature in September: 63°F
The month with the highest average low temperature is July (70.7°F).
The coldest month (with the lowest average low temperature) is January (31.6°F).
Average pressure in September
Cedar Knobb, OK
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Cedar Knobb, OK
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Cedar Knobb, OK
- Average humidity in September: 70%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is August (69%).
Average rainfall in September
Cedar Knobb, OK
- Average rainfall in September: 2.68"
The wettest month (with the highest rainfall) is May (4.49").
The driest month (with the least rainfall) is January (2.05").
Average rainfall days in September
Cedar Knobb, OK
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is March (15.4 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in September
Cedar Knobb, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.06").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Cedar Knobb, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.9 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
Cedar Knobb, OK
- Average daylight in September: 12h and 2min
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: 9h and 3min
The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in September
Cedar Knobb, OK
- Average sunshine days in September: 16.4 days
The months with the most sunshine days are November and December (19.3 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in September
Cedar Knobb, OK
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Cedar Knobb, OK
- Average cloud cover in September: 26
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in September
Cedar Knobb, 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).
Cedar Knobb, Oklahoma, USA
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