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 is marked by a minor decrease in temperature, transitioning from a tropical 92.8°F (33.8°C) in August to a warm 84.6°F (29.2°C). In September, Forest Park reports a consistent average low-temperature of 65.5°F (18.6°C) during the nights.Heat index
For September, the heat index is evaluated at a tropical 89.6°F (32°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.When assessing, remember that heat index measurements are for light winds and shaded spots. 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 'felt air temperature' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
Humidity
The average relative humidity in September in Forest Park is 65%.Rainfall
In Forest Park, 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 Forest Park.Daylight
In Forest Park, the average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 7:02 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:14 pm CDT.
Sunshine
In Forest Park, Oklahoma, the average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The average daily UV index of 5 in September transforms into the following instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Frequently asked questions
How hot is it in Forest Park in September?
What is the average humidity in September in Forest Park?
How many days does it rain in September in Forest Park?
When it does not snow in Forest Park?
What is the average length of the day in September in Forest Park?
What time are sunrise and sunset in September in Forest Park?
How many hours of sunshine does Forest Park have in September?
What is the UV index reading in September in Forest Park?
Average temperature in September
Forest Park, 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
Forest Park, 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
Forest Park, 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
Forest Park, 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
Forest Park, 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
Forest Park, 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
Forest Park, 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
Forest Park, 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
Forest Park, 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
Forest Park, 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
Forest Park, 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
Forest Park, 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
Forest Park, 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).
Forest Park, Oklahoma, USA
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