September weather forecast
Fannin, TX

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Weather in September

September, the first month of the autumn in Fannin, is also a hot month, with an average temperature fluctuating between 73.2°F (22.9°C) and 89.1°F (31.7°C).

Temperature

The average high-temperature slightly decreases in September, shifting from a very hot 95°F (35°C) in August to a tropical 89.1°F (31.7°C). Fannin experiences an average low-temperature of 73.2°F (22.9°C) in the month of September.

Heat index

The heat index value for September is estimated at an extremely hot 105.8°F (41°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
In the scope of the heat index, its values resonate with shade and light wind conditions. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

The average relative humidity in September is 74%.

Rainfall

The month with the most rainfall in Fannin is September, when the rain falls for 17.6 days and typically aggregates up to 2.95" (75mm) of precipitation.

Snowfall

February through November are months without snowfall in Fannin.

Daylight

The average length of the day in September is 12h and 19min.
On the first day of the month, sunrise is at 7:07 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:21 am and sunset at 7:15 pm CDT.

Sunshine

In September, the average sunshine is 8.5h.

UV index

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
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Frequently asked questions

How hot is September in Fannin?

In Fannin, 89.1°F (31.7°C) is the average high-temperature and 73.2°F (22.9°C) is the average low-temperature during September. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in September is estimated at 105.8°F (41°C).

What is the average humidity in September in Fannin?

In September, the average relative humidity in Fannin, Texas, is 74%.

What is the rainiest month in Fannin?

September is the month with the most rainfall. Rain falls for 17.6 days and accumulates 2.95" (75mm) of precipitation.

How much does it rain in Fannin in September?

In Fannin, Texas, in September, during 17.6 rainfall days, 2.95" (75mm) of precipitation is typically accumulated.

When it does not snow in Fannin?

February through November are months without snowfall in Fannin.

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

The average day length in September in Fannin, Texas, is 12h and 19min.

When is the sunrise / sunset in September in Fannin?

In September, on the first day of the month, sunrise is at 7:07 am and sunset at 7:50 pm. On the last day of the month, in Fannin, Texas, sunrise is at 7:21 am and sunset at 7:15 pm CDT.

How many hours of sunshine does Fannin have in September?

In Fannin, Texas, the average sunshine duration in September is 8.5h.

How high is the UV index in September in Fannin?

The average daily maximum UV index in September in Fannin is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Fannin, TX

Average temperature in September - Fannin, TX
  • Average high temperature in September: 89.1°F

The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (62.8°F).

  • Average low temperature in September: 73.2°F

The month with the highest average low temperature is August (76.8°F).
The coldest month (with the lowest average low temperature) is January (46.6°F).

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Average pressure in September
Fannin, TX

Average pressure in September - Fannin, TX
  • Average pressure in September: 29.93"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in September
Fannin, TX

Average wind speed in September - Fannin, TX
  • Average wind speed in September: 6.8mph

The windiest months (with the highest average wind speed) are April and May (9.5mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).

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Average humidity in September
Fannin, TX

Average humidity in September - Fannin, TX
  • Average humidity in September: 74%

The months with the highest relative humidity are March and May (78%).
The month with the lowest relative humidity is August (70%).

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Average rainfall in September
Fannin, TX

Average rainfall in September - Fannin, TX
  • Average rainfall in September: 2.95"

The wettest month (with the highest rainfall) is September (2.95").
The driest month (with the least rainfall) is February (1.02").

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Average rainfall days in September
Fannin, TX

Average rainfall days in September - Fannin, TX
  • Average rainfall days in September: 17.6 days

The month with the highest number of rainy days is September (17.6 days).
The month with the least rainy days is July (11 days).

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Average snowfall in September
Fannin, TX

Average snowfall in September - Fannin, TX
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Fannin, TX

Average snowfall days in September - Fannin, TX
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in September /
Average sunshine in September
Fannin, TX

Average daylight in September / Average sunshine in September - Fannin, TX
  • 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 3min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

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Average sunshine days in September
Fannin, TX

Average sunshine days in September - Fannin, TX
  • Average sunshine days in September: 10.5 days

The month with the most sunshine days is July (17.4 days).
The month with the least sunshine days is September (10.5 days).

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Average UV index in September
Fannin, TX

Average UV index in September - Fannin, TX
  • Average UV index in September: 6

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in September
Fannin, TX

Average cloud cover in September - Fannin, TX
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 25).

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Average visibility in September
Fannin, TX

Average visibility in September - Fannin, TX
  • 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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Fannin, Texas, USA

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