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 results in a small decrease in the average high-temperature, moderately receding from a tropical 89.2°F (31.8°C) in August to a moderately hot 82.2°F (27.9°C). In Foyil, September is marked by an average low-temperature of 63.1°F (17.3°C).Heat index
In September, the average heat index is computed to be a hot 87.8°F (31°C). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.Data suggests that the heat index is set for environments in shade and with a light wind. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a metric representing the sensation of warmth when air temperature and moisture come together. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. 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 highly critical to babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
In September, the average relative humidity in Foyil is 71%.Rainfall
In Foyil, during September, the rain falls for 9.7 days and regularly aggregates up to 2.52" (64mm) of precipitation. In Foyil, during the entire year, the rain falls for 125.4 days and collects up to 23.19" (589mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Foyil, the average length of the day in September is 12h and 24min.On the first day of the month, sunrise is at 6:54 am and sunset at 7:49 pm. On the last day of September, sunrise is at 7:17 am and sunset at 7:06 pm CDT.
Sunshine
The average sunshine in September is 9h.UV index
In Foyil, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: A daily high UV index of 5 in September leads to these guidelines:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in 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 Foyil have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Foyil, OK
- Average high temperature in September: 82.2°F
The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (45°F).
- Average low temperature in September: 63.1°F
The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).
Average pressure in September
Foyil, OK
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Foyil, OK
- Average wind speed in September: 7.6mph
The windiest month (with the highest average wind speed) is March (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in September
Foyil, OK
- Average humidity in September: 71%
The month with the highest relative humidity is May (81%).
The month with the lowest relative humidity is October (68%).
Average rainfall in September
Foyil, OK
- Average rainfall in September: 2.52"
The wettest month (with the highest rainfall) is May (4.06").
The driest month (with the least rainfall) is November (0.75").
Average rainfall days in September
Foyil, OK
- Average rainfall days in September: 9.7 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (6.2 days).
Average snowfall in September
Foyil, OK
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Foyil, OK
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (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
Foyil, 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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in September
Foyil, OK
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is May (12.9 days).
Average UV index in September
Foyil, OK
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Foyil, OK
- Average cloud cover in September: 28
The month with the most cloud cover is March (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 23).
Average visibility in September
Foyil, 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).
Foyil, Oklahoma, USA
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