September weather forecast
Harleton, TX

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Weather in September

The first month of the autumn, September, is also a hot month in Harleton, Texas, with an average temperature fluctuating between 67.3°F (19.6°C) and 88.5°F (31.4°C).

Temperature

In September, the average high-temperature marginally decreases from a hot 94.8°F (34.9°C) in August to a still tropical 88.5°F (31.4°C). Throughout September, Harleton anticipates an average low-temperature of 67.3°F (19.6°C).

Heat index

September's average heat index is evaluated at a very hot 100.4°F (38°C). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
Always consider that heat index estimations are for light winds and places in the shade. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.

Humidity

In September, the average relative humidity in Harleton is 69%.

Rainfall

In Harleton, in September, during 10.6 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. Throughout the year, in Harleton, there are 109.9 rainfall days, and 14.53" (369mm) of precipitation is accumulated.

Snowfall

March through December are months without snowfall.

Daylight

In Harleton, the average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 6:53 am and sunset at 7:42 pm. On the last day of September, sunrise is at 7:12 am and sunset at 7:03 pm CDT.

Sunshine

The average sunshine in September in Harleton is 9.2h.

UV index

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: An average UV index of 6 in September transforms into this advice:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. 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. Stay sun-safe with clothing that is both closely woven and worn loosely.
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Frequently asked questions

How hot is September in Harleton?

In Harleton, in September, the average high-temperature is 88.5°F (31.4°C), and the average low-temperature is 67.3°F (19.6°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is evaluated at 100.4°F (38°C).

What is the average humidity in September in Harleton?

In Harleton, Texas, the average relative humidity in September is 69%.

How many days does it rain in September in Harleton?

In Harleton, Texas, in September, it is raining for 10.6 days, with typically 0.94" (24mm) of accumulated precipitation.

When it does not snow in Harleton?

In Harleton, Texas, snow does not fall in March through December.

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

The average day length in September in Harleton is 12h and 22min.

When are sunrise and sunset in September in Harleton?

In September, on the first day of the month, sunrise is at 6:53 am and sunset at 7:42 pm. On the last day of the month, in Harleton, Texas, sunrise is at 7:12 am and sunset at 7:03 pm CDT.

How long on average sun shines in September in Harleton?

The average sunshine duration in September is 9.2h.

What is the UV index reading in September in Harleton?

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
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
Harleton, TX

Average temperature in September - Harleton, TX
  • Average high temperature in September: 88.5°F

The warmest month (with the highest average high temperature) is August (94.8°F).
The month with the lowest average high temperature is January (54.1°F).

  • Average low temperature in September: 67.3°F

The months with the highest average low temperature are July and August (73.2°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).

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Average pressure in September
Harleton, TX

Average pressure in September - Harleton, TX
  • Average pressure in September: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Harleton, TX

Average wind speed in September - Harleton, TX
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest months (with the lowest average wind speed) are August and September (5.2mph).

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Average humidity in September
Harleton, TX

Average humidity in September - Harleton, TX
  • Average humidity in September: 69%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (67%).

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Average rainfall in September
Harleton, TX

Average rainfall in September - Harleton, TX
  • Average rainfall in September: 0.94"

The wettest month (with the highest rainfall) is April (1.69").
The driest month (with the least rainfall) is November (0.79").

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Average rainfall days in September
Harleton, TX

Average rainfall days in September - Harleton, TX
  • Average rainfall days in September: 10.6 days

The month with the highest number of rainy days is June (11.2 days).
The month with the least rainy days is January (6.2 days).

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Average snowfall in September
Harleton, TX

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

The month with the highest snowfall is February (0.31").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Harleton, TX

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

The month with the highest number of snowfall days is February (1.2 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
Harleton, TX

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

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).

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Average sunshine days in September
Harleton, TX

Average sunshine days in September - Harleton, TX
  • Average sunshine days in September: 17.6 days

The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is June (15.8 days).

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Average UV index in September
Harleton, TX

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

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

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Average cloud cover in September
Harleton, TX

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

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 28).

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Average visibility in September
Harleton, TX

Average visibility in September - Harleton, TX
  • Average visibility in September: 6mi

The months with the highest visibility are January, March, April, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are February and May (5mi).

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Harleton, Texas, USA

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