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 change in temperatures is noted as August gives way to September, with average highs reducing from a torrid 95.5°F (35.3°C) to a tropical 86.2°F (30.1°C). During the month of September, Empire City anticipates a mean low-temperature of 67.1°F (19.5°C).Heat index
The average heat index in September is appraised at a tropical 93.2°F (34°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.Bear in mind that the heat index values are determined for shaded areas and light breezes. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gives an indication of how one might feel in terms of heat after considering humidity. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Humidity
In September, the average relative humidity is 63%.Rainfall
In Empire City, during September, the rain falls for 12.3 days and regularly aggregates up to 2.01" (51mm) of precipitation. Throughout the year, there are 106.9 rainfall days, and 18.11" (460mm) of precipitation is accumulated.Snowfall
In Empire City, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 23min.On the first day of September, sunrise is at 7:05 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:17 pm CDT.
Sunshine
In Empire City, the average sunshine in September is 8.4h.UV index
In Empire City, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Empire City have in September?
What time are sunrise and sunset in September in Empire City?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Empire City, OK
- Average high temperature in September: 86.2°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is December (51.6°F).
- Average low temperature in September: 67.1°F
The month with the highest average low temperature is July (74.1°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).
Average pressure in September
Empire 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 (29.88"Hg).
Average wind speed in September
Empire City, OK
- Average wind speed in September: 8.2mph
The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest months (with the lowest average wind speed) are July and August (8.1mph).
Average humidity in September
Empire City, OK
- Average humidity in September: 63%
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (55%).
Average rainfall in September
Empire City, OK
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is May (3.35").
The driest months (with the least rainfall) are January, February and November (0.71").
Average rainfall days in September
Empire City, OK
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (4.7 days).
Average snowfall in September
Empire City, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.18").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Empire City, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.5 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
Empire City, 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 2min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in September
Empire City, OK
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is January (25.3 days).
The month with the least sunshine days is May (15 days).
Average UV index in September
Empire 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
Empire City, OK
- Average cloud cover in September: 28
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
Empire 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).
Empire City, Oklahoma, USA
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