September weather forecast
Sanderson, TX

Share

Weather in September

The first month of the autumn, September, is also a hot month in Sanderson, Texas, with an average temperature ranging between max 86.2°F (30.1°C) and min 69.4°F (20.8°C).

Temperature

Sanderson's transition into September involves a gentle shift in temperature, receding from a hot 93.6°F (34.2°C) in August to a still tropical 86.2°F (30.1°C). Sanderson experiences an average low-temperature of 69.4°F (20.8°C) in month of September.

Heat index

The heat index in September is computed to be a hot 89.6°F (32°C). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.

Humidity

With an average relative humidity of 54%, September is the most humid month.

Rainfall

September is the month with the most rainfall in Sanderson. Rain falls for 11.2 days and accumulates 1.54" (39mm) of precipitation.

Snowfall

March through October are months without snowfall in Sanderson.

Daylight

The average length of the day in September is 12h and 20min.
On the first day of September, sunrise is at 7:26 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 7:35 pm CDT.

Sunshine

In Sanderson, the average sunshine in September is 9.1h.

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 unprotected exposure to Sun's UV rays for the average person.
Note: A daily high UV index of 6 in September leads to these guidelines:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
[Resources]

Frequently asked questions

How hot is September in Sanderson?

In Sanderson, in September, the average high-temperature is 86.2°F (30.1°C), and the average low-temperature is 69.4°F (20.8°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in September is computed to be 89.6°F (32°C).

What is the most humid month in Sanderson?

September is the most humid month in Sanderson, Texas, with an average relative humidity of 54%.

What is the average humidity in September in Sanderson?

The average relative humidity in September in Sanderson, Texas, is 54%.

What is the wettest month in Sanderson?

September is the month with the most rainfall in Sanderson, Texas. Rain falls for 11.2 days and accumulates 1.54" (39mm) of precipitation.

How many days does it rain in September in Sanderson?

In Sanderson, in September, it is raining for 11.2 days, with typically 1.54" (39mm) of accumulated precipitation.

When it does not snow in Sanderson?

March through October are months without snowfall.

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

In Sanderson, the average day length in September is 12h and 20min.

When are sunrise and sunset in September in Sanderson?

In September, on the first day of the month, sunrise is at 7:26 am and sunset at 8:11 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 7:35 pm CDT.

How long on average sun shines in September in Sanderson?

In Sanderson, the average sunshine duration in September is 9.1h.

What is the UV index reading in September in Sanderson?

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

Average temperature in September - Sanderson, TX
  • Average high temperature in September: 86.2°F

The warmest month (with the highest average high temperature) is June (93.7°F).
The month with the lowest average high temperature is January (60.4°F).

  • Average low temperature in September: 69.4°F

The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (40.5°F).

[Resources]

Average pressure in September
Sanderson, TX

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

The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are May and June (29.86"Hg).

[Resources]

Average wind speed in September
Sanderson, TX

Average wind speed in September - Sanderson, TX
  • Average wind speed in September: 9.9mph

The windiest month (with the highest average wind speed) is June (12mph).
The calmest month (with the lowest average wind speed) is December (7.6mph).

[Resources]

Average humidity in September
Sanderson, TX

Average humidity in September - Sanderson, TX
  • Average humidity in September: 54%

The month with the highest relative humidity is September (54%).
The month with the lowest relative humidity is April (38%).

[Resources]

Average rainfall in September
Sanderson, TX

Average rainfall in September - Sanderson, TX
  • Average rainfall in September: 1.54"

The wettest month (with the highest rainfall) is September (1.54").
The driest month (with the least rainfall) is February (0.24").

[Resources]

Average rainfall days in September
Sanderson, TX

Average rainfall days in September - Sanderson, TX
  • Average rainfall days in September: 11.2 days

The month with the highest number of rainy days is September (11.2 days).
The month with the least rainy days is February (2.9 days).

[Resources]

Average snowfall in September
Sanderson, TX

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

The month with the highest snowfall is December (0.43").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").

[Resources]

Average snowfall days in September
Sanderson, TX

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

The month with the highest number of snowfall days is January (1.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

[Resources]

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

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

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

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

[Resources]

Average sunshine days in September
Sanderson, TX

Average sunshine days in September - Sanderson, TX
  • Average sunshine days in September: 16.2 days

The month with the most sunshine days is January (26.1 days).
The month with the least sunshine days is September (16.2 days).

[Resources]

Average UV index in September
Sanderson, TX

Average UV index in September - Sanderson, 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).

[Resources]

Average cloud cover in September
Sanderson, TX

Average cloud cover in September - Sanderson, TX
  • Average cloud cover in September: 23

The month with the most cloud cover is September (Cloud cover 23).
The months with the least cloud cover are June and August (Cloud cover 13).

[Resources]

Average visibility in September
Sanderson, TX

Average visibility in September - Sanderson, 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).

[Resources]

Sanderson, Texas, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location