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
A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a hot 93.4°F (34.1°C) to a moderately hot 84.9°F (29.4°C). In the month of September, an average of 66.2°F (19°C) marks the low-temperature.Heat index
The heat index for September is computed to be a hot 89.6°F (32°C). Fatigue might occur with continuous exposure and activity, potentially causing heat cramps.Heat index guidelines indicate values are for light wind scenarios and shaded regions. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'real feel' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Humidity
In September, the average relative humidity is 62%.Rainfall
In Imo, in September, during 13.1 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. In Imo, Oklahoma, during the entire year, the rain falls for 115 days and collects up to 21.5" (546mm) of precipitation.Snowfall
In Imo, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 24min.On the first day of September in Imo, sunrise is at 7:03 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:16 pm CDT.
Sunshine
In September, the average sunshine is 8.9h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In September, the UV index of 5 transforms into the following advice:
Exercise caution. Those with pale skin may experience burns in less than half an hour. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September in Imo?
What time are sunrise and sunset in September in Imo?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Imo, OK
- Average high temperature in September: 84.9°F
The warmest month (with the highest average high temperature) is July (95°F).
The month with the lowest average high temperature is January (47.1°F).
- Average low temperature in September: 66.2°F
The month with the highest average low temperature is July (74.8°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).
Average pressure in September
Imo, 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
Imo, OK
- Average wind speed in September: 9.1mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is August (8.5mph).
Average humidity in September
Imo, OK
- Average humidity in September: 62%
The month with the highest relative humidity is May (69%).
The months with the lowest relative humidity are July and August (56%).
Average rainfall in September
Imo, OK
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is December (0.71").
Average rainfall days in September
Imo, OK
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in September
Imo, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Imo, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.3 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
Imo, 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 months with the most sunshine are June and July (Average sunshine: 11h and 12min).
The months with the least sunshine are November and December (Average sunshine: 6h and 18min).
Average sunshine days in September
Imo, OK
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is December (23.9 days).
The month with the least sunshine days is May (14.3 days).
Average UV index in September
Imo, 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
Imo, OK
- Average cloud cover in September: 25
The months with the most cloud cover are March and April (Cloud cover 35).
The months with the least cloud cover are June and August (Cloud cover 19).
Average visibility in September
Imo, 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).
Imo, Oklahoma, USA
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