September weather forecastMontalba, TX
September
Weather in September
September, the first month of the autumn in Montalba, is still a tropical month, with an average temperature fluctuating between 68.4°F (20.2°C) and 88.7°F (31.5°C).Temperature
A mild drop in Montalba's average high-temperature is observed in September, transitioning from a torrid 95.4°F (35.2°C) in August to a hot 88.7°F (31.5°C). September nights are marked by an average low-temperature of 68.4°F (20.2°C).Heat index
For most parts of September, the heat index is estimated at a torrid 102.2°F (39°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.Heat index values are typically calculated for conditions of shade and a light breeze. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'real feel', provides an understanding of perceived warmth by combining temperature and relative humidity. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. 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. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.
Humidity
The average relative humidity in September in Montalba is 70%.Rainfall
In Montalba, in September, during 12.2 rainfall days, 0.67" (17mm) of precipitation is typically accumulated. Throughout the year, there are 114.9 rainfall days, and 11.61" (295mm) of precipitation is accumulated.Snowfall
March through December are months without snowfall.Daylight
In Montalba, the average length of the day in September is 12h and 21min.On the first day of September, sunrise is at 6:58 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:16 am and sunset at 7:08 pm CDT.
Sunshine
The average sunshine in September is 8.6h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A daily high UV index of 6 in September leads to these guidelines:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Montalba, TX
- Average high temperature in September: 88.7°F
The warmest month (with the highest average high temperature) is August (95.4°F).
The month with the lowest average high temperature is January (55.9°F).
- Average low temperature in September: 68.4°F
The month with the highest average low temperature is August (73.6°F).
The coldest month (with the lowest average low temperature) is January (39.9°F).
Average pressure in September
Montalba, TX
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Montalba, TX
- Average wind speed in September: 5.5mph
The windiest months (with the highest average wind speed) are March and April (7.8mph).
The calmest month (with the lowest average wind speed) is September (5.5mph).
Average humidity in September
Montalba, TX
- Average humidity in September: 70%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Montalba, TX
- Average rainfall in September: 0.67"
The wettest month (with the highest rainfall) is May (1.42").
The driest month (with the least rainfall) is November (0.51").
Average rainfall days in September
Montalba, TX
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is September (12.2 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in September
Montalba, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Montalba, TX
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are April, May, June, July, August, October and November (0 days).
Average daylight in September /
Average sunshine in September
Montalba, 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 36min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Montalba, TX
- Average sunshine days in September: 15.1 days
The month with the most sunshine days is October (20.9 days).
The month with the least sunshine days is September (15.1 days).
Average UV index in September
Montalba, 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, November and December (UV index 3).
Average cloud cover in September
Montalba, TX
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
Montalba, TX
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
