September weather forecastCranfills Gap, TX
September
Weather in September
The first month of the autumn, September, is still a hot month in Cranfills Gap, Texas, with temperature in the range of an average high of 88°F (31.1°C) and an average low of 70.2°F (21.2°C).Temperature
September's onset introduces a mild reduction in the average high-temperature, from a sweltering 95.9°F (35.5°C) in August to a tropical 88°F (31.1°C). Throughout September, Cranfills Gap encounters an average temperature drop to a pleasant 70.2°F (21.2°C).Heat index
In September, the heat index is estimated at a torrid 96.8°F (36°C). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.Heat index determinations are made taking into account the shade and light air movements. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
Humidity
In Cranfills Gap, the average relative humidity in September is 64%.Rainfall
In September, the rain falls for 12.2 days. Throughout September, 1.26" (32mm) of precipitation is accumulated. In Cranfills Gap, Texas, during the entire year, the rain falls for 109.9 days and collects up to 15.2" (386mm) of precipitation.Snowfall
In Cranfills Gap, snow does not fall in April through December.Daylight
In September, the average length of the day is 12h and 21min.On the first day of the month, sunrise is at 7:07 am and sunset at 7:54 pm. On the last day of September, sunrise is at 7:24 am and sunset at 7:17 pm CDT.
Sunshine
In Cranfills Gap, the average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cranfills Gap, TX
- Average high temperature in September: 88°F
The warmest month (with the highest average high temperature) is August (95.9°F).
The month with the lowest average high temperature is January (56.8°F).
- Average low temperature in September: 70.2°F
The month with the highest average low temperature is August (75.9°F).
The coldest month (with the lowest average low temperature) is January (40.3°F).
Average pressure in September
Cranfills Gap, 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
Cranfills Gap, TX
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is March (10.9mph).
The calmest month (with the lowest average wind speed) is September (7.1mph).
Average humidity in September
Cranfills Gap, TX
- Average humidity in September: 64%
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (55%).
Average rainfall in September
Cranfills Gap, TX
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is June (2.05").
The driest month (with the least rainfall) is November (0.59").
Average rainfall days in September
Cranfills Gap, TX
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is May (12.7 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in September
Cranfills Gap, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.24").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Cranfills Gap, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.8 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
Cranfills Gap, TX
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in September
Cranfills Gap, TX
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is May (14.8 days).
Average UV index in September
Cranfills Gap, 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
Cranfills Gap, TX
- Average cloud cover in September: 29
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Cranfills Gap, 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).





