September weather forecastLubbock, TX
September
Weather in September
September signals the onset of a meteorological fall in the city of Lubbock. The grip of summer heat loosens, rendering a noticeable drop in average temperature. The highest rainfall of 2.36" (60mm) witnessed in the latter half of the year is a significant feature of September’s climate. As the daylight hours start shortening and the cloud cover gradually increases, the sky often graces locals with spectacular, vibrant sunsets. The refreshing autumn breeze tenderly replaces the summer winds, preparing the city for a seasonal transition.Temperature
The shift from August to September involves a decrease in the average high-temperature, from a tropical 92.3°F (33.5°C) to a warm 83.3°F (28.5°C). An average nighttime temperature of 63.5°F (17.5°C) is noted in Lubbock during the month of September.Heat index
The average heat index in September is calculated to be a hot 86°F (30°C). A sense of exhaustion might occur with extended exposure and activity, potentially causing heat cramps.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', joins air temperature with relative humidity to produce a temperature perception for humans. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
Humidity
With an average relative humidity of 57%, September is the most humid month.Rainfall
The month with the most rainfall is September, when the rain falls for 12.8 days and typically aggregates up to 2.36" (60mm) of precipitation.Snowfall
In Lubbock, snow does not fall in April through September.Daylight
In Lubbock, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 7:21 am and sunset at 8:12 pm. On the last day of September, sunrise is at 7:41 am and sunset at 7:32 pm CDT.
Sunshine
The average sunshine in September is 9h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In September, an average UV index of 6 transforms into the following instructions:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. 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. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lubbock, TX
- Average high temperature in September: 83.3°F
The warmest months (with the highest average high temperature) are July and August (92.3°F).
The month with the lowest average high temperature is December (52.5°F).
- Average low temperature in September: 63.5°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (33.4°F).
Average pressure in September
Lubbock, TX
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Lubbock, TX
- Average wind speed in September: 9.6mph
The windiest month (with the highest average wind speed) is April (13.2mph).
The calmest month (with the lowest average wind speed) is August (9.4mph).
Average humidity in September
Lubbock, TX
- Average humidity in September: 57%
The month with the highest relative humidity is September (57%).
The month with the lowest relative humidity is April (39%).
Average rainfall in September
Lubbock, TX
- Average rainfall in September: 2.36"
The wettest month (with the highest rainfall) is September (2.36").
The driest month (with the least rainfall) is February (0.39").
Average rainfall days in September
Lubbock, TX
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is September (12.8 days).
The month with the least rainy days is November (3.2 days).
Average snowfall in September
Lubbock, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.93").
The months with the least snowfall are April, May, June, July, August and September (0").
Average snowfall days in September
Lubbock, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lubbock, TX
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in September
Lubbock, TX
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is January (26.7 days).
The month with the least sunshine days is September (15.5 days).
Average UV index in September
Lubbock, 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 2).
Average cloud cover in September
Lubbock, TX
- Average cloud cover in September: 24
The month with the most cloud cover is September (Cloud cover 24).
The months with the least cloud cover are June and August (Cloud cover 15).
Average visibility in September
Lubbock, 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).





