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
Upon the onset of September, Hilliard witnesses an average high-temperature of a still tropical 87.6°F (30.9°C), showing a close resemblance to the prior month. September witnesses an average nighttime temperature of 71.8°F (22.1°C).Heat index
The heat index value during September is appraised at a blistering 104°F (40°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'real feel' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Perspiration, which is the evaporation of sweat, is a primary way the human body manages and dispels excessive warmth. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
In Hilliard, Florida, the average relative humidity in September is 77%.Rainfall
In Hilliard, in September, during 18.9 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. In Hilliard, during the entire year, the rain falls for 179.3 days and collects up to 33.19" (843mm) of precipitation.Snowfall
January, March through December are months without snowfall.Daylight
In September, the average length of the day is 12h and 20min.On the first day of the month, sunrise is at 7:04 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:21 am and sunset at 7:13 pm EDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In Hilliard, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 6 in September leads to these recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How much 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
Hilliard, FL
- Average high temperature in September: 87.6°F
The warmest month (with the highest average high temperature) is July (92.3°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°F).
The coldest month (with the lowest average low temperature) is January (44.4°F).
Average pressure in September
Hilliard, 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
Hilliard, FL
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in September
Hilliard, FL
- Average humidity in September: 77%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is March (70%).
Average rainfall in September
Hilliard, FL
- Average rainfall in September: 3.15"
The wettest month (with the highest rainfall) is August (5.39").
The driest month (with the least rainfall) is November (1.34").
Average rainfall days in September
Hilliard, FL
- Average rainfall days in September: 18.9 days
The month with the highest number of rainy days is August (25.7 days).
The month with the least rainy days is November (9 days).
Average snowfall days in September
Hilliard, 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
Hilliard, 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in September
Hilliard, FL
- Average sunshine days in September: 7.7 days
The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is August (3.8 days).
Average UV index in September
Hilliard, FL
- Average UV index in September: 6
The months with the highest UV index are May, June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 4).
Average cloud cover in September
Hilliard, FL
- Average cloud cover in September: 33
The month with the most cloud cover is December (Cloud cover 42).
The months with the least cloud cover are July and October (Cloud cover 31).
Average visibility in September
Hilliard, 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).
Hilliard, Florida, USA
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