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
The introduction of September sees an average high-temperature of a still hot 87.4°F (30.8°C), hardly deviating from August. During September, Shady Grove's temperature averages to an agreeable 71.8°F (22.1°C) at night.Heat index
The heat index in September is calculated to be a torrid 102.2°F (39°C). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', comes about by integrating the temperature readings with the humidity levels. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
August, September and December, with an average relative humidity of 77%, are the most humid months.Rainfall
In Shady Grove, in September, it is raining for 18.3 days, with typically 3.27" (83mm) of accumulated precipitation. In Shady Grove, during the entire year, the rain falls for 168.6 days and collects up to 32.95" (837mm) of precipitation.Daylight
The average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 7:11 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 7:20 pm EDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
In Shady Grove, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the UV index of 6 transforms into the following advice:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the most humid month?
What is the average humidity in September?
How much does it rain in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Shady Grove have in September?
How high is the UV index in September?
Average temperature in September
Shady Grove, FL
- Average high temperature in September: 87.4°F
The warmest months (with the highest average high temperature) are July and August (90.3°F).
The month with the lowest average high temperature is January (62.2°F).
- Average low temperature in September: 71.8°F
The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (45.5°F).
Average pressure in September
Shady Grove, FL
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in September
Shady Grove, FL
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is January (7.2mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in September
Shady Grove, FL
- Average humidity in September: 77%
The months with the highest relative humidity are August, September and December (77%).
The months with the lowest relative humidity are January and May (72%).
Average rainfall in September
Shady Grove, FL
- Average rainfall in September: 3.27"
The wettest month (with the highest rainfall) is August (5.35").
The driest month (with the least rainfall) is November (1.02").
Average rainfall days in September
Shady Grove, FL
- Average rainfall days in September: 18.3 days
The month with the highest number of rainy days is August (24.8 days).
The month with the least rainy days is November (6.8 days).
Average daylight in September /
Average sunshine in September
Shady Grove, 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 4min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in September
Shady Grove, FL
- Average sunshine days in September: 9.5 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is August (3.8 days).
Average UV index in September
Shady Grove, FL
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).
Average cloud cover in September
Shady Grove, FL
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 38).
The month with the least cloud cover is May (Cloud cover 24).
Average visibility in September
Shady Grove, 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).
Shady Grove, Florida, USA
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