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 onset of September is marked by a decrease in temperature, transitioning from a sweltering 95°F (35°C) in August to a hot 86°F (30°C). During September, Cornish witnesses a consistent average low-temperature of 66.9°F (19.4°C).Heat index
In September, the average heat index is estimated at a hot 93.2°F (34°C). Exercise enhanced safety steps, heat cramps and heat exhaustion are probable. Heatstroke could be a result of sustained activity.In terms of the heat index, values are set with light wind and shade conditions in mind. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
Humidity
The average relative humidity in September in Cornish is 65%.Rainfall
In Cornish, in September, it is raining for 13 days, with typically 2.64" (67mm) of accumulated precipitation. Throughout the year, in Cornish, there are 123.1 rainfall days, and 26.1" (663mm) of precipitation is accumulated.Snowfall
In Cornish, snow does not fall in March through October.Daylight
The average length of the day in September in Cornish is 12h and 22min.On the first day of September in Cornish, sunrise is at 7:04 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:15 pm CDT.
Sunshine
In September, the average sunshine in Cornish, Oklahoma, is 8.5h.UV index
In September, the average daily maximum UV index in Cornish is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for average individuals.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Put precautions into practice - Protective measures against sun-induced damage are advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Boost your sun resistance with garments that are densely woven yet spacious.
Frequently asked questions
How hot is it in Cornish in September?
What is the average humidity in September in Cornish?
How much does it rain in Cornish in September?
When it does not snow in Cornish?
How many hours of daylight does Cornish have in September?
When is the sunrise / sunset in September in Cornish?
How many hours of sunshine does Cornish have in September?
What is the UV index reading in September in Cornish?
Average temperature in September
Cornish, OK
- Average high temperature in September: 86°F
The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (52°F).
- Average low temperature in September: 66.9°F
The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (35.2°F).
Average pressure in September
Cornish, 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
Cornish, OK
- Average wind speed in September: 7.5mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is September (7.5mph).
Average humidity in September
Cornish, OK
- Average humidity in September: 65%
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (57%).
Average rainfall in September
Cornish, OK
- Average rainfall in September: 2.64"
The wettest month (with the highest rainfall) is May (3.98").
The driest month (with the least rainfall) is December (1.26").
Average rainfall days in September
Cornish, OK
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is May (13.7 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in September
Cornish, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days in September
Cornish, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2 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
Cornish, OK
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in September
Cornish, OK
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is May (14.8 days).
Average UV index in September
Cornish, 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
Cornish, OK
- Average cloud cover in September: 28
The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
Cornish, 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).
Cornish, Oklahoma, USA
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