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 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
Limestone, Florida, sees the arrival of September with an average high-temperature of a still hot 88.3°F (31.3°C), indicating a subtle variation from August. The low-temperature averages to a warm 74.3°F (23.5°C) during the nights of September.Heat index
The heat index in September is appraised at a scorching 107.6°F (42°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.Research indicates the heat index considers values in shaded locales and with light winds. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. In the presence of abundant moisture in the atmosphere, the cooling process through evaporation is hindered, causing the body to feel excessively warm. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
The most humid month is September, with an average relative humidity of 80%.Rainfall
In Limestone, in September, during 23.5 rainfall days, 3.31" (84mm) of precipitation is typically accumulated. Throughout the year, there are 187.3 rainfall days, and 28.62" (727mm) of precipitation is accumulated.Daylight
In Limestone, the average length of the day in September is 12h and 19min.On the first day of September, sunrise is at 7:07 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:14 pm EDT.
Sunshine
In Limestone, Florida, the average sunshine in September is 8.9h.UV index
The months with the highest UV index in Limestone are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.Note: A daily high UV index of 7 in September leads to these guidelines:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the most humid month?
What is the average humidity in September?
How much does it rain in September?
How many hours of daylight does Limestone have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Limestone have in September?
What is the month with the highest UV index?
What is the UV index intensity in September?
Average temperature in September
Limestone, FL
- Average high temperature in September: 88.3°F
The warmest months (with the highest average high temperature) are July and August (90.1°F).
The month with the lowest average high temperature is January (70.5°F).
- Average low temperature in September: 74.3°F
The month with the highest average low temperature is August (76.5°F).
The coldest month (with the lowest average low temperature) is January (52.9°F).
Average pressure in September
Limestone, FL
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).
Average wind speed in September
Limestone, FL
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is January (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in September
Limestone, FL
- Average humidity in September: 80%
The month with the highest relative humidity is September (80%).
The month with the lowest relative humidity is March (70%).
Average rainfall in September
Limestone, FL
- Average rainfall in September: 3.31"
The wettest month (with the highest rainfall) is August (5.08").
The driest month (with the least rainfall) is February (0.75").
Average rainfall days in September
Limestone, FL
- Average rainfall days in September: 23.5 days
The months with the highest number of rainy days are July and August (25.7 days).
The month with the least rainy days is January (8.6 days).
Average daylight in September /
Average sunshine in September
Limestone, FL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in September: 8h and 5min
The months with the most sunshine are May and July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in September
Limestone, FL
- Average sunshine days in September: 4.7 days
The month with the most sunshine days is January (20.7 days).
The months with the least sunshine days are July and August (3.6 days).
Average UV index in September
Limestone, FL
- Average UV index in September: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 5).
Average cloud cover in September
Limestone, FL
- Average cloud cover in September: 32
The month with the most cloud cover is December (Cloud cover 33).
The month with the least cloud cover is May (Cloud cover 26).
Average visibility in September
Limestone, 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).
Limestone, Florida, USA
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