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 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
Usher's weather in September, with an average high-temperature of a still tropical 87.3°F (30.7°C), subtly shifts from August's 90.3°F (32.4°C). Usher experiences a mean low-temperature of 72.9°F (22.7°C) during September.Heat index
The heat index in September is appraised at a sweltering 102.2°F (39°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.The metrics for the heat index are tailored for both shady environments and 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 'real feel' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
With an average relative humidity of 77%, September is the most humid month.Rainfall
In Usher, during September, the rain falls for 18.7 days and regularly aggregates up to 1.85" (47mm) of precipitation. Throughout the year, there are 154 rainfall days, and 21.69" (551mm) of precipitation is accumulated.Snowfall
January through November are months without snowfall.Daylight
In Usher, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 7:09 am and sunset at 7:52 pm. On the last day of September, in Usher, sunrise is at 7:24 am and sunset at 7:17 pm EDT.
Sunshine
In Usher, the average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September in Usher is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.Note: A maximum high daily UV index of 6 during September translates into the following directions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
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 many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Usher, FL
- Average high temperature in September: 87.3°F
The warmest month (with the highest average high temperature) is August (90.3°F).
The month with the lowest average high temperature is January (64°F).
- Average low temperature in September: 72.9°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 (47.7°F).
Average pressure in September
Usher, FL
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).
Average wind speed in September
Usher, FL
- Average wind speed in September: 5.4mph
The windiest months (with the highest average wind speed) are January, February and March (7.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in September
Usher, FL
- Average humidity in September: 77%
The month with the highest relative humidity is September (77%).
The month with the lowest relative humidity is January (71%).
Average rainfall in September
Usher, FL
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is November (0.83").
Average rainfall days in September
Usher, FL
- Average rainfall days in September: 18.7 days
The month with the highest number of rainy days is July (22.8 days).
The month with the least rainy days is November (6.6 days).
Average snowfall days in September
Usher, FL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Usher, FL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in September
Usher, FL
- Average sunshine days in September: 8.8 days
The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is July (5.8 days).
Average UV index in September
Usher, 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 4).
Average cloud cover in September
Usher, FL
- Average cloud cover in September: 31
The months with the most cloud cover are February and December (Cloud cover 36).
The month with the least cloud cover is May (Cloud cover 25).
Average visibility in September
Usher, 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).
Usher, Florida, USA
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