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
The arrival of September in Killeen suggests a slight decrease in the average high-temperature, moving from a torrid 96.3°F (35.7°C) in August to a tropical 87.8°F (31°C). An average nighttime temperature of 70.7°F (21.5°C) is witnessed in Killeen, Texas throughout September.Heat index
In September, the average heat index is calculated to be a torrid 96.8°F (36°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. 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 primarily vital for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.
Humidity
In September, the average relative humidity in Killeen is 65%.Rainfall
In September, in Killeen, the rain falls for 14.3 days. Throughout September, 1.97" (50mm) of precipitation is accumulated. In Killeen, during the entire year, the rain falls for 130.1 days and collects up to 23.07" (586mm) of precipitation.Snowfall
March through December are months without snowfall in Killeen.Daylight
In September, the average length of the day is 12h and 20min.On the first day of the month, sunrise is at 7:07 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:24 am and sunset at 7:16 pm CDT.
Sunshine
In Killeen, the average sunshine in September is 8.5h.UV index
In Killeen, Texas, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: In September, the UV index of 6 transforms into the following advice:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Frequently asked questions
Is it hot in Killeen during September?
What is the average humidity in September in Killeen?
How many days does it rain in September in Killeen?
When it does not snow in Killeen?
What is the average length of the day in September in Killeen?
What time are sunrise and sunset in September in Killeen?
How many hours of sunshine does Killeen have in September?
What is the UV index reading in September in Killeen?
Average temperature in September
Killeen, TX
- Average high temperature in September: 87.8°F
The warmest month (with the highest average high temperature) is August (96.3°F).
The month with the lowest average high temperature is January (58.1°F).
- Average low temperature in September: 70.7°F
The month with the highest average low temperature is August (76.1°F).
The coldest month (with the lowest average low temperature) is January (41.2°F).
Average pressure in September
Killeen, TX
- Average pressure in September: 29.96"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
Killeen, TX
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is March (10.6mph).
The calmest month (with the lowest average wind speed) is September (7.1mph).
Average humidity in September
Killeen, TX
- Average humidity in September: 65%
The month with the highest relative humidity is May (74%).
The month with the lowest relative humidity is August (56%).
Average rainfall in September
Killeen, TX
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is October (3.39").
The driest month (with the least rainfall) is November (0.98").
Average rainfall days in September
Killeen, TX
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is September (14.3 days).
The month with the least rainy days is January (6.6 days).
Average snowfall in September
Killeen, 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").
Average snowfall days in September
Killeen, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Killeen, 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Killeen, TX
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is September (13.5 days).
Average UV index in September
Killeen, TX
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Killeen, TX
- Average cloud cover in September: 30
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Killeen, 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).
Killeen, Texas, USA
Weather forecast for your location
2. Allow the app to use your location
