September weather forecast
Harney, FL

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Weather in September

September, the first month of the autumn in Harney, is still a tropical month, with temperature in the range of an average high of 88.7°F (31.5°C) and an average low of 74.8°F (23.8°C).

Temperature

Harney experiences a recorded average high-temperature of a still hot 88.7°F (31.5°C) in September, closely aligned with August's 90.3°F (32.4°C). September nights are marked by an average temperature drop to a moderately hot 74.8°F (23.8°C).

Heat index

The heat index value for September is evaluated at an extremely hot 105.8°F (41°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', gives a temperature feeling by integrating air temperature and humidity. 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. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. When the body is unable to balance heat gain, its temperature elevates, which may induce thermal illnesses.

Humidity

The months with the highest humidity are September and December, with an average relative humidity of 76%.

Rainfall

In Harney, in September, it is raining for 21 days, with typically 3.23" (82mm) of accumulated precipitation. Throughout the year, there are 172.9 rainfall days, and 27.24" (692mm) of precipitation is accumulated.

Daylight

In Harney, the average length of the day in September is 12h and 19min.
On the first day of September in Harney, sunrise is at 7:08 am and sunset at 7:50 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 8.9h.

UV index

The months with the highest UV index in Harney, Florida, are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The average daily UV index of 7 in September transforms into the following instructions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
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Frequently asked questions

Is it hot in Harney during September?

In September, the average high-temperature and low-temperature are 88.7°F (31.5°C) and 74.8°F (23.8°C) respectively. In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is evaluated at 105.8°F (41°C).

What is the most humid month in Harney?

September and December, with an average relative humidity of 76%, are most humid months.

What is the average humidity in September in Harney?

The average relative humidity in September is 76%.

How much does it rain in Harney in September?

In Harney, Florida, during September, the rain falls for 21 days and regularly aggregates up to 3.23" (82mm) of precipitation.

What is the average length of the day in September in Harney?

In Harney, Florida, the average day length in September is 12h and 19min.

What time are sunrise and sunset in September in Harney?

On the first day of September in Harney, Florida, sunrise is at 7:08 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:16 pm EDT.

How long on average sun shines in September in Harney?

In September, the average sunshine duration in Harney is 8.9h.

What is the month with the highest UV index in Harney?

The months with the highest UV index in Harney, Florida, are May through September, with an average maximum UV index of 7.

How high is the UV index in September in Harney?

The average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Harney, FL

Average temperature in September - Harney, FL
  • Average high temperature in September: 88.7°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 (68.4°F).

  • Average low temperature in September: 74.8°F

The month with the highest average low temperature is August (77.5°F).
The coldest month (with the lowest average low temperature) is January (52.2°F).

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Average pressure in September
Harney, FL

Average pressure in September - Harney, FL
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).

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Average wind speed in September
Harney, FL

Average wind speed in September - Harney, FL
  • Average wind speed in September: 5.6mph

The windiest month (with the highest average wind speed) is March (7.1mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).

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Average humidity in September
Harney, FL

Average humidity in September - Harney, FL
  • Average humidity in September: 76%

The months with the highest relative humidity are September and December (76%).
The months with the lowest relative humidity are March and May (70%).

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Average rainfall in September
Harney, FL

Average rainfall in September - Harney, FL
  • Average rainfall in September: 3.23"

The wettest month (with the highest rainfall) is July (5.08").
The driest month (with the least rainfall) is January (0.83").

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Average rainfall days in September
Harney, FL

Average rainfall days in September - Harney, FL
  • Average rainfall days in September: 21 days

The months with the highest number of rainy days are July and August (25 days).
The month with the least rainy days is January (6.8 days).

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Average daylight in September /
Average sunshine in September
Harney, FL

Average daylight in September / Average sunshine in September - Harney, FL
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is May (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).

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Average sunshine days in September
Harney, FL

Average sunshine days in September - Harney, FL
  • Average sunshine days in September: 6.3 days

The month with the most sunshine days is January (22.1 days).
The month with the least sunshine days is August (3.4 days).

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Average UV index in September
Harney, FL

Average UV index in September - Harney, FL
  • Average UV index in September: 7

The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).

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Average cloud cover in September
Harney, FL

Average cloud cover in September - Harney, FL
  • Average cloud cover in September: 30

The months with the most cloud cover are January, February and December (Cloud cover 33).
The month with the least cloud cover is May (Cloud cover 25).

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Average visibility in September
Harney, FL

Average visibility in September - Harney, 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).

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Harney, Florida, USA

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