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
September's weather displays an average high-temperature of a still tropical 88°F (31.1°C), slightly varied from August's 90.9°F (32.7°C). During September, the average low-temperature is a pleasant 72.1°F (22.3°C).Heat index
September's average heat index is evaluated at a blistering 105.8°F (41°C). Incorporate extra safety measures to avoid heat exhaustion and heat cramps. Continuous activity could provoke heatstroke.It is crucial to understand that heat index figures are for shade and gentle wind conditions. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', arises from combining readings of air temperature and relative moisture content. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.
Humidity
The months with the highest humidity are August and September, with an average relative humidity of 78%.Rainfall
In Lawtey, in September, during 16 rainfall days, 1.5" (38mm) of precipitation is typically accumulated. In Lawtey, during the entire year, the rain falls for 158.6 days and collects up to 20.79" (528mm) of precipitation.Snowfall
In Lawtey, snow does not fall in January, March through December.Daylight
In Lawtey, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 7:05 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:21 am and sunset at 7:14 pm EDT.
Sunshine
In Lawtey, the average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index in Lawtey is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average UV index of 6 in September transforms into this advice:
Deter overexposure. Protecting against the sun's effects is essential. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Lawtey have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Lawtey have in September?
How high is the UV index in September?
Average temperature in September
Lawtey, FL
- Average high temperature in September: 88°F
The warmest months (with the highest average high temperature) are July and August (90.9°F).
The month with the lowest average high temperature is January (63.9°F).
- Average low temperature in September: 72.1°F
The month with the highest average low temperature is August (75°F).
The coldest month (with the lowest average low temperature) is January (45.7°F).
Average pressure in September
Lawtey, 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
Lawtey, FL
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).
Average humidity in September
Lawtey, FL
- Average humidity in September: 78%
The months with the highest relative humidity are August and September (78%).
The month with the lowest relative humidity is March (71%).
Average rainfall in September
Lawtey, FL
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is August (3.03").
The driest months (with the least rainfall) are January and November (1.02").
Average rainfall days in September
Lawtey, FL
- Average rainfall days in September: 16 days
The month with the highest number of rainy days is August (21.8 days).
The month with the least rainy days is November (7.5 days).
Average snowfall days in September
Lawtey, FL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Lawtey, 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 18min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in September
Lawtey, FL
- Average sunshine days in September: 11.3 days
The month with the most sunshine days is January (20.7 days).
The month with the least sunshine days is August (7.1 days).
Average UV index in September
Lawtey, 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, February and December (UV index 4).
Average cloud cover in September
Lawtey, FL
- Average cloud cover in September: 35
The month with the most cloud cover is December (Cloud cover 41).
The month with the least cloud cover is May (Cloud cover 31).
Average visibility in September
Lawtey, FL
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is December (5mi).
Lawtey, Florida, USA
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