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 brings an average high-temperature of a still tropical 86.9°F (30.5°C), exhibiting minor difference from the previous month. September brings Greenhead a consistent average low-temperature of 70.7°F (21.5°C).Heat index
For most parts of September, the heat index is evaluated at a torrid 100.4°F (38°C). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.Know that the heat index computations account for shaded terrains and slight winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.
Humidity
In Greenhead, the average relative humidity in September is 76%.Rainfall
In Greenhead, Florida, in September, it is raining for 18.5 days, with typically 2.87" (73mm) of accumulated precipitation. Throughout the year, in Greenhead, there are 185.4 rainfall days, and 39.13" (994mm) of precipitation is accumulated.Snowfall
In Greenhead, snow does not fall in February through December.Daylight
In September, the average length of the day in Greenhead, Florida, is 12h and 20min.On the first day of the month, sunrise is at 6:19 am and sunset at 7:05 pm. On the last day of September, in Greenhead, sunrise is at 6:35 am and sunset at 6:28 pm CDT.
Sunshine
In Greenhead, the average sunshine in September is 8.9h.UV index
In Greenhead, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 6 suggests this advice:
Prevent overexposure. Protection from the sun's harmful effects is needed. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Frequently asked questions
How hot is September in Greenhead?
What is the average humidity in September in Greenhead?
How much does it rain in Greenhead in September?
When it does not snow in Greenhead?
What is the average length of the day in September in Greenhead?
When is the sunrise / sunset in September in Greenhead?
How many hours of sunshine does Greenhead have in September?
How high is the UV index in September in Greenhead?
Average temperature in September
Greenhead, FL
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is August (90.1°F).
The month with the lowest average high temperature is January (59.5°F).
- Average low temperature in September: 70.7°F
The month with the highest average low temperature is August (75°F).
The coldest month (with the lowest average low temperature) is January (43.3°F).
Average pressure in September
Greenhead, FL
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in September
Greenhead, FL
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is March (7mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in September
Greenhead, FL
- Average humidity in September: 76%
The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is May (71%).
Average rainfall in September
Greenhead, FL
- Average rainfall in September: 2.87"
The wettest month (with the highest rainfall) is August (5.94").
The driest month (with the least rainfall) is November (1.85").
Average rainfall days in September
Greenhead, FL
- Average rainfall days in September: 18.5 days
The month with the highest number of rainy days is August (25.6 days).
The month with the least rainy days is November (8.9 days).
Average snowfall in September
Greenhead, FL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Greenhead, FL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Greenhead, FL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 8h and 5min
The months with the most sunshine are May and July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).
Average sunshine days in September
Greenhead, FL
- Average sunshine days in September: 9 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is August (3.9 days).
Average UV index in September
Greenhead, FL
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Greenhead, FL
- Average cloud cover in September: 28
The month with the most cloud cover is December (Cloud cover 43).
The months with the least cloud cover are May and October (Cloud cover 26).
Average visibility in September
Greenhead, FL
- 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).
Greenhead, Florida, USA
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