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
The commencement of September notes an average high-temperature of a still hot 87.6°F (30.9°C), exhibiting little difference from the previous month. Morriston experiences a nighttime temperature average of 72.3°F (22.4°C) during September.Heat index
In September, the average heat index is calculated to be a scorching 104°F (40°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.Heat index determinations are made taking into account the shade and light air movements. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. When heat uptake goes beyond the body's cooling mechanisms, there's a surge in body temperature, posing health risks.
Humidity
The months with the highest humidity are July through September, with an average relative humidity of 78%.Rainfall
In September, the rain falls for 14.2 days. Throughout September, 0.59" (15mm) of precipitation is accumulated. Throughout the year, there are 127 rainfall days, and 10.04" (255mm) of precipitation is accumulated.Snowfall
February through December are months without snowfall.Daylight
In Morriston, the average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 7:07 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:16 pm EDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
In Morriston, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Deflect overexposure. Sun protection is a necessity. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What are the most humid months?
What is the average humidity in September in Morriston?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Morriston have in September?
When are sunrise and sunset in September?
How many hours of sunshine does Morriston have in September?
What is the UV index intensity in September?
Average temperature in September
Morriston, FL
- Average high temperature in September: 87.6°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 (64.9°F).
- Average low temperature in September: 72.3°F
The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (47.3°F).
Average pressure in September
Morriston, 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
Morriston, FL
- Average wind speed in September: 5.2mph
The windiest months (with the highest average wind speed) are March and April (7mph).
The calmest month (with the lowest average wind speed) is July (4.9mph).
Average humidity in September
Morriston, FL
- Average humidity in September: 78%
The months with the highest relative humidity are July, August and September (78%).
The month with the lowest relative humidity is March (71%).
Average rainfall in September
Morriston, FL
- Average rainfall in September: 0.59"
The wettest month (with the highest rainfall) is July (1.73").
The driest month (with the least rainfall) is March (0.28").
Average rainfall days in September
Morriston, FL
- Average rainfall days in September: 14.2 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (5.1 days).
Average snowfall days in September
Morriston, FL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Morriston, 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 months with the most sunshine are May and July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).
Average sunshine days in September
Morriston, FL
- Average sunshine days in September: 11.8 days
The month with the most sunshine days is January (23.5 days).
The month with the least sunshine days is July (7.3 days).
Average UV index in September
Morriston, 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
Morriston, FL
- Average cloud cover in September: 33
The months with the most cloud cover are February and December (Cloud cover 37).
The month with the least cloud cover is May (Cloud cover 28).
Average visibility in September
Morriston, 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).
Morriston, Florida, USA
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