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 advent of September in Oklahoma City brings a slight shift in average high-temperature, moving from a hot 92.8°F (33.8°C) in August to a moderately hot 84.6°F (29.2°C). In the month of September, the nighttime temperature in Oklahoma City dips to a steady average of 65.5°F (18.6°C).Heat index
September's average heat index is estimated at a tropical 89.6°F (32°C). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.Metrics for the heat index primarily focus on shaded spots and light wind conditions. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Humidity
In September, the average relative humidity in Oklahoma City is 65%.Rainfall
In Oklahoma City, during September, the rain falls for 13.6 days and regularly aggregates up to 2.83" (72mm) of precipitation. Throughout the year, there are 121 rainfall days, and 24.96" (634mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall in Oklahoma City.Daylight
In Oklahoma City, the average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 7:02 am and sunset at 7:56 pm. On the last day of September, in Oklahoma City, Oklahoma, sunrise is at 7:24 am and sunset at 7:14 pm CDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 5 during September translates into the following guidance:
Act with care - The suggestion to avoid sunburn is emphasized. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Frequently asked questions
How hot does it get in Oklahoma City in September?
What is the average humidity in September in Oklahoma City?
How many days does it rain in September in Oklahoma City?
When it does not snow in Oklahoma City?
What is the average length of the day in September in Oklahoma City?
When is the sunrise / sunset in September in Oklahoma City?
How many hours of sunshine does Oklahoma City have in September?
How high is the UV index in September in Oklahoma City?
Average temperature in September
Oklahoma City, OK
- Average high temperature in September: 84.6°F
The warmest month (with the highest average high temperature) is July (93.6°F).
The month with the lowest average high temperature is January (48.6°F).
- Average low temperature in September: 65.5°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 (31.6°F).
Average pressure in September
Oklahoma City, 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 (29.87"Hg).
Average wind speed in September
Oklahoma City, OK
- Average wind speed in September: 8.9mph
The windiest month (with the highest average wind speed) is April (12.3mph).
The calmest month (with the lowest average wind speed) is August (8.6mph).
Average humidity in September
Oklahoma City, OK
- Average humidity in September: 65%
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (60%).
Average rainfall in September
Oklahoma City, OK
- Average rainfall in September: 2.83"
The wettest month (with the highest rainfall) is May (4.09").
The driest month (with the least rainfall) is December (0.91").
Average rainfall days in September
Oklahoma City, OK
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in September
Oklahoma City, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.26").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Oklahoma City, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (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
Oklahoma City, 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: 8h and 3min
The months with the most sunshine are July and August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in September
Oklahoma City, OK
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is January (24.4 days).
The month with the least sunshine days is May (13.9 days).
Average UV index in September
Oklahoma City, 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
Oklahoma City, OK
- Average cloud cover in September: 27
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in September
Oklahoma City, 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).
Oklahoma City, Oklahoma, USA
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