September weather forecast
McLendon-Chisholm, TX

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Weather in September

September, the first month of the autumn in McLendon-Chisholm, is still a tropical month, with temperature in the range of an average low of 68.7°F (20.4°C) and an average high of 87.1°F (30.6°C).

Temperature

September signals a slight drop in average high-temperature, sliding from August's sweltering 95°F (35°C) to a hot 87.1°F (30.6°C). McLendon-Chisholm observes an average low-temperature of 68.7°F (20.4°C) during September nights.

Heat index

During September, the heat index is calculated to be a very hot 95°F (35°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.
In reference to the heat index, it's for places in shade and with a slight wind. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. With an abundance of moisture present in the air, the process of evaporation becomes less effective, and the body fails to cool down as it should, leading to the sensation of overheating. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

In September, the average relative humidity in McLendon-Chisholm, Texas, is 66%.

Rainfall

In McLendon-Chisholm, in September, during 15.2 rainfall days, 2.76" (70mm) of precipitation is typically accumulated. In McLendon-Chisholm, during the entire year, the rain falls for 146.2 days and collects up to 32.91" (836mm) of precipitation.

Snowfall

In McLendon-Chisholm, snow does not fall in March through October and December.

Daylight

The average length of the day in September in McLendon-Chisholm is 12h and 22min.
On the first day of September in McLendon-Chisholm, sunrise is at 7:00 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:11 pm CDT.

Sunshine

The average sunshine in September is 8.5h.

UV index

In September, the average daily maximum UV index in McLendon-Chisholm is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 6 in September leads to these recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in McLendon-Chisholm in September?

In September, in McLendon-Chisholm, the average high-temperature is 87.1°F (30.6°C), and the average low-temperature is 68.7°F (20.4°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is calculated to be 95°F (35°C).

What is the average humidity in September in McLendon-Chisholm?

In McLendon-Chisholm, the average relative humidity in September is 66%.

How much does it rain in McLendon-Chisholm in September?

In McLendon-Chisholm, in September, it is raining for 15.2 days, with typically 2.76" (70mm) of accumulated precipitation.

When it does not snow in McLendon-Chisholm?

In McLendon-Chisholm, snow does not fall in March through October and December.

How many hours of daylight does McLendon-Chisholm have in September?

The average day length in September in McLendon-Chisholm, Texas, is 12h and 22min.

What time are sunrise and sunset in September in McLendon-Chisholm?

On the first day of September, sunrise is at 7:00 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:11 pm CDT.

How many hours of sunshine does McLendon-Chisholm have in September?

In September, the average sunshine duration in McLendon-Chisholm, Texas, is 8.5h.

What is the UV index reading in September in McLendon-Chisholm?

In September, the average daily maximum UV index in McLendon-Chisholm, Texas, is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
McLendon-Chisholm, TX

Average temperature in September - McLendon-Chisholm, TX
  • Average high temperature in September: 87.1°F

The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (54°F).

  • Average low temperature in September: 68.7°F

The months with the highest average low temperature are July and August (74.8°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).

Average pressure in September
McLendon-Chisholm, TX

Average pressure in September - McLendon-Chisholm, 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 (29.91"Hg).

Average wind speed in September
McLendon-Chisholm, TX

Average wind speed in September - McLendon-Chisholm, TX
  • Average wind speed in September: 6.6mph

The windiest month (with the highest average wind speed) is March (9.6mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).

Average humidity in September
McLendon-Chisholm, TX

Average humidity in September - McLendon-Chisholm, TX
  • Average humidity in September: 66%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is August (60%).

Average rainfall in September
McLendon-Chisholm, TX

Average rainfall in September - McLendon-Chisholm, TX
  • Average rainfall in September: 2.76"

The wettest month (with the highest rainfall) is October (4.21").
The driest month (with the least rainfall) is January (1.81").

Average rainfall days in September
McLendon-Chisholm, TX

Average rainfall days in September - McLendon-Chisholm, TX
  • Average rainfall days in September: 15.2 days

The month with the highest number of rainy days is September (15.2 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in September
McLendon-Chisholm, TX

Average snowfall in September - McLendon-Chisholm, TX
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.87").
The months with the least snowfall are March, April, May, June, July, August, September, October and December (0").

Average snowfall days in September
McLendon-Chisholm, TX

Average snowfall days in September - McLendon-Chisholm, TX
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
McLendon-Chisholm, TX

Average daylight in September / Average sunshine in September - McLendon-Chisholm, 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: 8h and 3min

The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).

Average sunshine days in September
McLendon-Chisholm, TX

Average sunshine days in September - McLendon-Chisholm, TX
  • Average sunshine days in September: 13.4 days

The month with the most sunshine days is January (21.4 days).
The month with the least sunshine days is September (13.4 days).

Average UV index in September
McLendon-Chisholm, TX

Average UV index in September - McLendon-Chisholm, TX
  • Average UV index in September: 6

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

Average cloud cover in September
McLendon-Chisholm, TX

Average cloud cover in September - McLendon-Chisholm, TX
  • Average cloud cover in September: 29

The months with the most cloud cover are February and March (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 21).

Average visibility in September
McLendon-Chisholm, TX

Average visibility in September - McLendon-Chisholm, 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).

McLendon-Chisholm, Texas, USA

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