September weather forecastAnnona, TX
September
Weather in September
The first month of the autumn, September, is still a hot month in Annona, Texas, with temperature in the range of an average low of 66.9°F (19.4°C) and an average high of 87.4°F (30.8°C).Temperature
In Annona, the average high-temperature in September slightly decreases from a tropical 93.9°F (34.4°C) in August to a still hot 87.4°F (30.8°C). Nighttime temperatures consistently average a comfortable 66.9°F (19.4°C) during September.Heat index
Throughout September, the heat index is appraised at a sweltering 96.8°F (36°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. The individual's impression of temperature can be shaped by additional aspects such as metabolic variations, physical activity, and clothing. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. As body temperatures escalate without effective heat release, one might face dehydration threats.
Humidity
The average relative humidity in September in Annona is 68%.Rainfall
In Annona, in September, during 11.8 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. In Annona, during the entire year, the rain falls for 149.4 days and collects up to 38.15" (969mm) of precipitation.Snowfall
In Annona, snow does not fall in April through November.Daylight
In Annona, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:54 am and sunset at 7:44 pm. On the last day of September, in Annona, sunrise is at 7:13 am and sunset at 7:04 pm CDT.
Sunshine
The average sunshine in September is 9.1h.UV index
In Annona, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 6 transforms into these recommendations:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Annona, TX
- Average high temperature in September: 87.4°F
The warmest month (with the highest average high temperature) is August (93.9°F).
The month with the lowest average high temperature is January (52.2°F).
- Average low temperature in September: 66.9°F
The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (36.5°F).
Average pressure in September
Annona, TX
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Annona, TX
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Annona, TX
- Average humidity in September: 68%
The months with the highest relative humidity are February and May (78%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Annona, TX
- Average rainfall in September: 2.4"
The wettest month (with the highest rainfall) is May (4.45").
The driest month (with the least rainfall) is January (2.32").
Average rainfall days in September
Annona, TX
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is March (14.7 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in September
Annona, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.75").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Annona, 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
Annona, 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 6min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
Annona, TX
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is January (18.8 days).
The month with the least sunshine days is February (13.6 days).
Average UV index in September
Annona, TX
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Annona, TX
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in September
Annona, 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).
