September weather forecast
Brownwood, TX

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Weather in September

September, the first month of the autumn in Brownwood, is still a hot month, with an average temperature ranging between max 87.4°F (30.8°C) and min 68.9°F (20.5°C).

Temperature

Transition into September subtly marks a drop in the average high-temperature, moderately moving from a fiery hot 95.7°F (35.4°C) in August to a tropical 87.4°F (30.8°C). During September, the nighttime temperature in Brownwood averages to a pleasant 68.9°F (20.5°C).

Heat index

During September, the heat index is appraised at a hot 93.2°F (34°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.
It is important to note that the heat index values are for shaded areas and light wind scenarios. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.

Humidity

In Brownwood, the average relative humidity in September is 60%.

Rainfall

In Brownwood, in September, during 13.5 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. In Brownwood, during the entire year, the rain falls for 115.7 days and collects up to 19.96" (507mm) of precipitation.

Snowfall

April through November are months without snowfall in Brownwood, Texas.

Daylight

The average length of the day in September is 12h and 21min.
On the first day of the month, sunrise is at 7:12 am and sunset at 7:59 pm. On the last day of September, sunrise is at 7:29 am and sunset at 7:21 pm CDT.

Sunshine

In September, the average sunshine is 8.7h.

UV index

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The UV index of 6 during September leads to these advisories:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
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Frequently asked questions

How hot does it get in Brownwood in September?

During September, Brownwood experiences an average high-temperature of 87.4°F (30.8°C) and a low-temperature of 68.9°F (20.5°C). In September, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is appraised at 93.2°F (34°C).

What is the average humidity in September in Brownwood?

In Brownwood, the average relative humidity in September is 60%.

How many days does it rain in September in Brownwood?

In Brownwood, Texas, in September, during 13.5 rainfall days, 1.89" (48mm) of precipitation is typically accumulated.

When it does not snow in Brownwood?

April through November are months without snowfall.

How many hours of daylight does Brownwood have in September?

In Brownwood, Texas, the average day length in September is 12h and 21min.

When are sunrise and sunset in September in Brownwood?

In September, on the first day of the month, sunrise is at 7:12 am and sunset at 7:59 pm. On the last day of the month, in Brownwood, Texas, sunrise is at 7:29 am and sunset at 7:21 pm CDT.

How many hours of sunshine does Brownwood have in September?

In September, the average sunshine duration in Brownwood, Texas, is 8.7h.

How high is the UV index in September in Brownwood?

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unprotected exposure to 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
Brownwood, TX

Average temperature in September - Brownwood, TX
  • Average high temperature in September: 87.4°F

The warmest month (with the highest average high temperature) is August (95.7°F).
The months with the lowest average high temperature are January and December (58.1°F).

  • Average low temperature in September: 68.9°F

The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (39°F).

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Average pressure in September
Brownwood, TX

Average pressure in September - Brownwood, TX
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

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Average wind speed in September
Brownwood, TX

Average wind speed in September - Brownwood, TX
  • Average wind speed in September: 8.3mph

The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is September (8.3mph).

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Average humidity in September
Brownwood, TX

Average humidity in September - Brownwood, TX
  • Average humidity in September: 60%

The month with the highest relative humidity is May (66%).
The month with the lowest relative humidity is August (51%).

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Average rainfall in September
Brownwood, TX

Average rainfall in September - Brownwood, TX
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is January (0.94").

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Average rainfall days in September
Brownwood, TX

Average rainfall days in September - Brownwood, TX
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is January (5.4 days).

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Average snowfall in September
Brownwood, TX

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

The month with the highest snowfall is February (0.83").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in September
Brownwood, TX

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

The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Brownwood, TX
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).

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Average sunshine days in September
Brownwood, TX

Average sunshine days in September - Brownwood, TX
  • Average sunshine days in September: 14.3 days

The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is May (13.4 days).

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Average UV index in September
Brownwood, TX

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

The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in September
Brownwood, TX

Average cloud cover in September - Brownwood, TX
  • Average cloud cover in September: 28

The months with the most cloud cover are March and May (Cloud cover 34).
The month with the least cloud cover is August (Cloud cover 19).

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Average visibility in September
Brownwood, TX

Average visibility in September - Brownwood, 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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Brownwood, Texas, USA

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