Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
In September, the average high-temperature marginally drops from a torrid 95.5°F (35.3°C) in August to a tropical 87.1°F (30.6°C). Throughout September, an average low-temperature of 69.3°F (20.7°C) is expected.Heat index
The heat index value for September is calculated to be a tropical 91.4°F (33°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Humidity
In Knickerbocker, the average relative humidity in September is 57%.Rainfall
In Knickerbocker, during September, the rain falls for 10.5 days and regularly aggregates up to 1.69" (43mm) of precipitation. Throughout the year, there are 89.8 rainfall days, and 15.43" (392mm) of precipitation is accumulated.Snowfall
In Knickerbocker, Texas, snow does not fall in April through October.Daylight
In September, the average length of the day in Knickerbocker is 12h and 20min.On the first day of the month, sunrise is at 7:18 am and sunset at 8:05 pm. On the last day of September, in Knickerbocker, sunrise is at 7:36 am and sunset at 7:28 pm CDT.
Sunshine
In September, the average sunshine is 8.9h.UV index
In September, the average daily maximum UV index in Knickerbocker, Texas, is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: An average UV index of 6 in September transforms into this advice:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Knickerbocker in September?
What is the average humidity in September in Knickerbocker?
How much does it rain in Knickerbocker in September?
When it does not snow in Knickerbocker?
What is the average length of the day in September in Knickerbocker?
What time are sunrise and sunset in September in Knickerbocker?
How long on average sun shines in September in Knickerbocker?
What is the UV index intensity in September in Knickerbocker?
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in September /
Average sunshine in September
Knickerbocker, 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: 8h and 5min
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).
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).
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).
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).
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).
Knickerbocker, Texas, USA
Weather forecast for your location
2. Allow the app to use your location