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 minor decrease in temperature, transitioning from a tropical 93°F (33.9°C) in August to a moderately hot 84.6°F (29.2°C). Isabella records an average temperature drop to a refreshing 66.7°F (19.3°C) in September.Heat index
In September, the heat index is evaluated at a tropical 87.8°F (31°C). Exhaustion is likely with prolonged exposure and activity. Sustaining activity may result in heat cramps.Be informed that the heat index values are oriented around shady conditions and gentle breezes. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Humidity
The average relative humidity in September in Isabella is 60%.Rainfall
In Isabella, during September, the rain falls for 12 days and regularly aggregates up to 1.5" (38mm) of precipitation. In Isabella, Oklahoma, during the entire year, the rain falls for 100.5 days and collects up to 16.46" (418mm) of precipitation.Snowfall
June through October are months without snowfall in Isabella.Daylight
In September, the average length of the day in Isabella is 12h and 24min.On the first day of September in Isabella, sunrise is at 7:05 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:17 pm CDT.
Sunshine
The average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index in Isabella is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 6 during September translates into the following guidance:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Frequently asked questions
Is it hot in Isabella during September?
What is the average humidity in September in Isabella?
How many days does it rain in September in Isabella?
When it does not snow in Isabella?
How many hours of daylight does Isabella have in September?
When are sunrise and sunset in September in Isabella?
How many hours of sunshine does Isabella have in September?
What is the UV index intensity in September in Isabella?
Average temperature in September
Isabella, OK
- Average high temperature in September: 84.6°F
The warmest month (with the highest average high temperature) is July (95°F).
The month with the lowest average high temperature is January (47.3°F).
- Average low temperature in September: 66.7°F
The month with the highest average low temperature is July (75°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in September
Isabella, OK
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Isabella, OK
- Average wind speed in September: 9.8mph
The windiest month (with the highest average wind speed) is April (12.4mph).
The calmest month (with the lowest average wind speed) is August (9mph).
Average humidity in September
Isabella, OK
- Average humidity in September: 60%
The month with the highest relative humidity is May (66%).
The months with the lowest relative humidity are July and August (54%).
Average rainfall in September
Isabella, OK
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is November (0.51").
Average rainfall days in September
Isabella, OK
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is May (12.7 days).
The month with the least rainy days is January (3.3 days).
Average snowfall in September
Isabella, OK
- Average snowfall in September: 0"
The months with the highest snowfall are January and February (1.06").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Isabella, 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 June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Isabella, 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: 8h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in September
Isabella, OK
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is January (26.2 days).
The month with the least sunshine days is September (15.5 days).
Average UV index in September
Isabella, OK
- Average UV index in September: 6
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
Isabella, OK
- Average cloud cover in September: 24
The months with the most cloud cover are March and April (Cloud cover 33).
The months with the least cloud cover are June and August (Cloud cover 18).
Average visibility in September
Isabella, 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).
Isabella, Oklahoma, USA
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