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
September comes with a decrease in the average high-temperature, falling from a hot 94.1°F (34.5°C) in August to a moderately hot 84.9°F (29.4°C). In September, Sweetwater records an average nighttime temperature of 65.7°F (18.7°C).Heat index
September's mean heat index is calculated to be a hot 89.6°F (32°C). If one endures exposure and continues to be active, it might result in tiredness and heat cramps.Take into consideration that the heat index values are calculated for shade and light wind conditions. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is an aggregate value of air's warmth and moisture to show the human-felt temperature. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Humidity
The average relative humidity in September is 59%.Rainfall
In September, the rain falls for 11.5 days. Throughout September, 2.09" (53mm) of precipitation is accumulated. Throughout the year, there are 99.3 rainfall days, and 17.8" (452mm) of precipitation is accumulated.Snowfall
In Sweetwater, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 23min.On the first day of the month, sunrise is at 7:12 am and sunset at 8:06 pm. On the last day of September, sunrise is at 7:34 am and sunset at 7:24 pm CDT.
Sunshine
The average sunshine in September is 9h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 5 transforms into these recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How many days 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?
When is the sunrise / sunset in September?
How many hours of sunshine does Sweetwater have in September?
What is the UV index intensity in September?
Average temperature in September
Sweetwater, OK
- Average high temperature in September: 84.9°F
The warmest month (with the highest average high temperature) is July (94.8°F).
The month with the lowest average high temperature is December (49.8°F).
- Average low temperature in September: 65.7°F
The month with the highest average low temperature is July (73.8°F).
The coldest month (with the lowest average low temperature) is January (31.8°F).
Average pressure in September
Sweetwater, OK
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Sweetwater, OK
- Average wind speed in September: 10.1mph
The windiest month (with the highest average wind speed) is April (13.3mph).
The calmest month (with the lowest average wind speed) is August (9.5mph).
Average humidity in September
Sweetwater, OK
- Average humidity in September: 59%
The month with the highest relative humidity is May (60%).
The months with the lowest relative humidity are July and August (51%).
Average rainfall in September
Sweetwater, OK
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is May (2.52").
The driest month (with the least rainfall) is December (0.59").
Average rainfall days in September
Sweetwater, OK
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is August (12 days).
The month with the least rainy days is January (3.2 days).
Average snowfall in September
Sweetwater, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.69").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Sweetwater, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 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
Sweetwater, 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: 9h and 0min
The months with the most sunshine are June and July (Average sunshine: 11h and 24min).
The months with the least sunshine are November and December (Average sunshine: 6h and 42min).
Average sunshine days in September
Sweetwater, OK
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is January (25.6 days).
The month with the least sunshine days is August (14.8 days).
Average UV index in September
Sweetwater, 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
Sweetwater, OK
- Average cloud cover in September: 23
The month with the most cloud cover is April (Cloud cover 29).
The months with the least cloud cover are June and August (Cloud cover 17).
Average visibility in September
Sweetwater, 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).
Sweetwater, Oklahoma, USA
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