September weather forecast
Knickerbocker, TX

Weather in September

September, the first month of the autumn in Knickerbocker, is still a hot month, with an average temperature varying between 87.1°F (30.6°C) and 69.3°F (20.7°C).

Temperature

In Knickerbocker, the average high-temperature in September marginally drops from a torrid 95.5°F (35.3°C) in August to a tropical 87.1°F (30.6°C). In September, the average low-temperature is 69.3°F (20.7°C).

Heat index

In September, the average heat index is computed to be a tropical 91.4°F (33°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'real feel', 'felt air temperature', or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (metabolic differences, wind, differences in body mass, height, and shape). Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In September, the average relative humidity in Knickerbocker is 57%.

Rainfall

In Knickerbocker, Texas, in September, during 10.5 rainfall days, 1.69" (43mm) of precipitation is typically accumulated. In Knickerbocker, during the entire year, the rain falls for 89.8 days and collects up to 15.43" (392mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In September, the average length of the day in Knickerbocker, Texas, is 12h and 20min.
On the first day of September, sunrise is at 7:18 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 7:29 pm CDT.

Sunshine

The average sunshine in September in Knickerbocker is 8.9h.

UV index

In September, the average daily maximum UV index in Knickerbocker is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.
Note: In September, the average maximum UV index of 6 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
[Resources]

FAQ

What is the temperature in September in Knickerbocker?

The average high-temperature, in September, in Knickerbocker, is 87.1°F (30.6°C), while the average low-temperature is 69.3°F (20.7°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 91.4°F (33°C).

What is the average humidity in September in Knickerbocker?

The average relative humidity in September is 57%.

How much does it rain in Knickerbocker in September?

In Knickerbocker, during September, the rain falls for 10.5 days and regularly aggregates up to 1.69" (43mm) of precipitation.

When it does not snow in Knickerbocker?

In Knickerbocker, Texas, snow does not fall in April through October.

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

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

What time are sunrise and sunset in September in Knickerbocker?

In September, on the first day of the month, sunrise is at 7:18 am and sunset at 8:06 pm. On the last day of the month, in Knickerbocker, sunrise is at 7:35 am and sunset at 7:29 pm CDT.

How long on average sun shines in September in Knickerbocker?

In Knickerbocker, Texas, the average sunshine duration in September is 8.9h.

How high is the UV index in September in Knickerbocker?

In Knickerbocker, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Knickerbocker, TX

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

The warmest month (with the highest average high temperature) is August (95.5°F).
The months with the lowest average high temperature are January and December (58.6°F).

  • Average low temperature in September: 69.3°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 (39.6°F).

[Resources]

Average pressure in September
Knickerbocker, TX

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are May and June (29.87"Hg).

[Resources]

Average wind speed in September
Knickerbocker, TX

Average wind speed in September - Knickerbocker, TX
  • Average wind speed in September: 9.6mph

The windiest month (with the highest average wind speed) is April (13.7mph).
The calmest month (with the lowest average wind speed) is September (9.6mph).

[Resources]

Average humidity in September
Knickerbocker, TX

Average humidity in September - Knickerbocker, TX
  • Average humidity in September: 57%

The month with the highest relative humidity is November (58%).
The month with the lowest relative humidity is August (47%).

[Resources]

Average rainfall in September
Knickerbocker, TX

Average rainfall in September - Knickerbocker, TX
  • Average rainfall in September: 1.69"

The wettest month (with the highest rainfall) is October (2.36").
The driest month (with the least rainfall) is January (0.59").

[Resources]

Average rainfall days in September
Knickerbocker, TX

Average rainfall days in September - Knickerbocker, TX
  • Average rainfall days in September: 10.5 days

The month with the highest number of rainy days is May (12 days).
The month with the least rainy days is January (3.8 days).

[Resources]

Average snowfall in September
Knickerbocker, TX

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

The month with the highest snowfall is February (0.63").
The months with the least snowfall are April, May, June, July, August, September and October (0").

[Resources]

Average snowfall days in September
Knickerbocker, TX

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

The month with the highest number of snowfall days is February (1.1 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
Knickerbocker, TX

Average daylight in September / Average sunshine in September - Knickerbocker, TX
  • Average daylight in September: 12h and 20min

The month with the longest days is June (Average daylight: 14h and 9min).
The month with the shortest days is December (Average daylight: 10h and 10min).

  • Average sunshine in September: 8h and 54min

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

[Resources]

Average sunshine days in September
Knickerbocker, TX

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

The month with the most sunshine days is January (25.8 days).
The month with the least sunshine days is May (16.3 days).

[Resources]

Average UV index in September
Knickerbocker, TX

Average UV index in September - Knickerbocker, 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).

[Resources]

Average cloud cover in September
Knickerbocker, TX

Average cloud cover in September - Knickerbocker, TX
  • Average cloud cover in September: 27

The month with the most cloud cover is March (Cloud cover 28).
The month with the least cloud cover is August (Cloud cover 17).

[Resources]

Average visibility in September
Knickerbocker, TX

Average visibility in September - Knickerbocker, 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]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location