September weather forecastLamesa, TX
September
Weather in September
The first month of the autumn, September, is still a warm month in Lamesa, Texas, with an average temperature varying between 84.9°F (29.4°C) and 66.2°F (19°C).Temperature
A mild drop in Lamesa's average high-temperature is observed in September, transitioning from a tropical 93.7°F (34.3°C) in August to a moderately hot 84.9°F (29.4°C). An average nighttime temperature of 66.2°F (19°C) is noted during the month of September.Heat index
The average heat index in September is calculated to be a tropical 87.8°F (31°C). Exposure and extended activity could potentially cause a state of fatigue and lead to heat cramps.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly 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.
Humidity
The most humid month in Lamesa is September, with an average relative humidity of 55%.Rainfall
September is the month with the most rainfall. Rain falls for 12.6 days and accumulates 2.44" (62mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 7:23 am and sunset at 8:12 pm. On the last day of September, sunrise is at 7:41 am and sunset at 7:33 pm CDT.
Sunshine
In Lamesa, the average sunshine in September is 9h.UV index
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum high UV index of 6 in September translates into the following recommendations:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. 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. 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
Lamesa, TX
- Average high temperature in September: 84.9°F
The warmest months (with the highest average high temperature) are June and August (93.7°F).
The month with the lowest average high temperature is December (54.3°F).
- Average low temperature in September: 66.2°F
The month with the highest average low temperature is July (73.9°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).
Average pressure in September
Lamesa, TX
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in September
Lamesa, TX
- Average wind speed in September: 9.8mph
The windiest month (with the highest average wind speed) is April (13.4mph).
The calmest months (with the lowest average wind speed) are August and September (9.8mph).
Average humidity in September
Lamesa, TX
- Average humidity in September: 55%
The month with the highest relative humidity is September (55%).
The month with the lowest relative humidity is April (38%).
Average rainfall in September
Lamesa, TX
- Average rainfall in September: 2.44"
The wettest month (with the highest rainfall) is September (2.44").
The driest month (with the least rainfall) is February (0.39").
Average rainfall days in September
Lamesa, TX
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is September (12.6 days).
The months with the least rainy days are January and November (3.8 days).
Average snowfall in September
Lamesa, TX
- Average snowfall in September: 0"
The month with the highest snowfall is December (1.42").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Lamesa, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (2.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lamesa, 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 36min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in September
Lamesa, TX
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is January (26.3 days).
The month with the least sunshine days is September (14.8 days).
Average UV index in September
Lamesa, TX
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Lamesa, 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
Lamesa, 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).





