September weather forecast
Keene, TX

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Weather in September

September, the first month of the autumn in Keene, is still a tropical month, with an average temperature varying between 69.1°F (20.6°C) and 87.3°F (30.7°C).

Temperature

September's arrival aligns with a minor decrease in average high-temperatures, from August's fiery hot 95.5°F (35.3°C) to a tropical 87.3°F (30.7°C). September nights are marked by an average temperature drop to an agreeable 69.1°F (20.6°C).

Heat index

In September, the average heat index is computed to be a fiery hot 95°F (35°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. 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 'apparent temperature' or 'feels like', blends air temperature and moisture content to represent the felt temperature to humans. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are highly critical for babies and toddlers. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. An upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.

Humidity

The average relative humidity in September is 65%.

Rainfall

In Keene, Texas, in September, during 13.9 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. In Keene, during the entire year, the rain falls for 135 days and collects up to 29.92" (760mm) of precipitation.

Snowfall

In Keene, snow does not fall in January, April through October and December.

Daylight

In September, the average length of the day in Keene is 12h and 21min.
On the first day of September, sunrise is at 7:04 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:14 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 reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.
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Frequently asked questions

How hot does it get in Keene in September?

The average high-temperature and low-temperature during September are 87.3°F (30.7°C) and 69.1°F (20.6°C) respectively. The average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, in September is computed to be 95°F (35°C).

What is the average humidity in September in Keene?

In Keene, the average relative humidity in September is 65%.

How much does it rain in Keene in September?

In Keene, Texas, in September, during 13.9 rainfall days, 2.8" (71mm) of precipitation is typically accumulated.

When it does not snow in Keene?

January, April through October and December are months without snowfall.

How many hours of daylight does Keene have in September?

The average day length in September is 12h and 21min.

What time are sunrise and sunset in September in Keene?

In September, on the first day of the month, sunrise is at 7:04 am and sunset at 7:53 pm. On the last day of the month, in Keene, sunrise is at 7:23 am and sunset at 7:14 pm CDT.

How long on average sun shines in September in Keene?

In September, the average sunshine duration is 8.5h.

What is the UV index intensity in September in Keene?

In September, the average daily maximum UV index in Keene is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability 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
Keene, TX

Average temperature in September - Keene, TX
  • Average high temperature in September: 87.3°F

The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (55.8°F).

  • Average low temperature in September: 69.1°F

The month with the highest average low temperature is August (75.6°F).
The coldest month (with the lowest average low temperature) is January (39°F).

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Average pressure in September
Keene, TX

Average pressure in September - Keene, TX
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in September
Keene, TX

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

The windiest months (with the highest average wind speed) are March and April (10.6mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).

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Average humidity in September
Keene, TX

Average humidity in September - Keene, TX
  • Average humidity in September: 65%

The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (57%).

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Average rainfall in September
Keene, TX

Average rainfall in September - Keene, TX
  • Average rainfall in September: 2.8"

The wettest month (with the highest rainfall) is October (4.21").
The driest month (with the least rainfall) is February (1.5").

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Average rainfall days in September
Keene, TX

Average rainfall days in September - Keene, TX
  • Average rainfall days in September: 13.9 days

The month with the highest number of rainy days is May (15.4 days).
The month with the least rainy days is January (6.1 days).

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Average snowfall in September
Keene, TX

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

The month with the highest snowfall is February (0.94").
The months with the least snowfall are January, April, May, June, July, August, September, October and December (0").

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Average snowfall days in September
Keene, TX

Average snowfall days in September - Keene, 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
Keene, TX

Average daylight in September / Average sunshine in September - Keene, 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 3min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).

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Average sunshine days in September
Keene, TX

Average sunshine days in September - Keene, TX
  • Average sunshine days in September: 13.9 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
Keene, TX

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

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

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Average cloud cover in September
Keene, TX

Average cloud cover in September - Keene, TX
  • Average cloud cover in September: 30

The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 21).

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Average visibility in September
Keene, TX

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

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