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
With the onset of September, Knowles's average high-temperature slightly adjusts, moderately receding from August's tropical 91.9°F (33.3°C) to a moderately hot 84.2°F (29°C). In the month of September, Knowles experiences an average low-temperature of 64.4°F (18°C).Heat index
Throughout September, the heat index is estimated at a hot 86°F (30°C). Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.Heat index specifics point out values are for conditions of shade and a slight breeze. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Humidity
In September, the average relative humidity is 53%.Rainfall
In September, in Knowles, the rain falls for 11 days. Throughout September, 1.34" (34mm) of precipitation is accumulated. Throughout the year, in Knowles, there are 103 rainfall days, and 16.42" (417mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall in Knowles, Oklahoma.Daylight
In September, the average length of the day is 12h and 24min.On the first day of September, sunrise is at 7:12 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:25 pm CDT.
Sunshine
In Knowles, Oklahoma, the average sunshine in September is 9.2h.UV index
In September, the average daily maximum UV index in Knowles, Oklahoma, is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Frequently asked questions
Is it hot in Knowles during September?
What is the average humidity in September in Knowles?
How much does it rain in Knowles in September?
When it does not snow in Knowles?
Does it snow in Knowles in September?
What is the average length of the day in September in Knowles?
What time are sunrise and sunset in September in Knowles?
How long on average sun shines in September in Knowles?
What is the UV index intensity in September in Knowles?
Average temperature in September
Knowles, OK
- Average high temperature in September: 84.2°F
The warmest month (with the highest average high temperature) is July (94.3°F).
The month with the lowest average high temperature is December (47.3°F).
- Average low temperature in September: 64.4°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (29.1°F).
Average pressure in September
Knowles, OK
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in September
Knowles, OK
- Average wind speed in September: 12.5mph
The windiest month (with the highest average wind speed) is April (14.1mph).
The calmest month (with the lowest average wind speed) is January (11.1mph).
Average humidity in September
Knowles, OK
- Average humidity in September: 53%
The month with the highest relative humidity is December (58%).
The month with the lowest relative humidity is July (48%).
Average rainfall in September
Knowles, OK
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is May (2.4").
The driest month (with the least rainfall) is November (0.47").
Average rainfall days in September
Knowles, OK
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is July (14.6 days).
The months with the least rainy days are January and December (3.3 days).
Average snowfall in September
Knowles, OK
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Knowles, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5 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
Knowles, OK
- Average daylight in September: 12h and 2min
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 1min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in September
Knowles, OK
- Average sunshine days in September: 16 days
The month with the most sunshine days is January (25 days).
The months with the least sunshine days are July and August (12.9 days).
Average UV index in September
Knowles, 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
Knowles, OK
- Average cloud cover in September: 21
The month with the most cloud cover is April (Cloud cover 28).
The month with the least cloud cover is June (Cloud cover 17).
Average visibility in September
Knowles, 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).
Knowles, Oklahoma, USA
Weather forecast for your location
2. Allow the app to use your location
