Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The advent of September sees the average high-temperature at a still tropical 87.3°F (30.7°C), subtly shifted from August's 92.5°F (33.6°C). Mont Belvieu, in September, witnesses an average low-temperature of 73°F (22.8°C).Heat index
During September, the heat index is computed to be a sweltering 102.2°F (39°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.Data suggests that the heat index is set for environments in shade and with a light wind. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The process of perspiration is vital for the human body to get rid of excess warmth by allowing sweat to evaporate. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
In Mont Belvieu, the average relative humidity in September is 76%.Rainfall
September is the month with the most rainfall in Mont Belvieu. Rain falls for 19.9 days and accumulates 5.16" (131mm) of precipitation.Snowfall
February through November are months without snowfall.Daylight
In September, the average length of the day is 12h and 20min.On the first day of the month, sunrise is at 6:57 am and sunset at 7:41 pm. On the last day of September, sunrise is at 7:12 am and sunset at 7:05 pm CDT.
Sunshine
In Mont Belvieu, the average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September in Mont Belvieu is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 6 during September leads to these instructions:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Frequently asked questions
How hot does it get in Mont Belvieu in September?
What is the average humidity in September in Mont Belvieu?
What is the wettest month in Mont Belvieu?
How much does it rain in Mont Belvieu in September?
When it does not snow in Mont Belvieu?
How many hours of daylight does Mont Belvieu have in September?
When is the sunrise / sunset in September in Mont Belvieu?
How long on average sun shines in September in Mont Belvieu?
How high is the UV index in September in Mont Belvieu?
Average temperature in September
Mont Belvieu, TX
- Average high temperature in September: 87.3°F
The warmest month (with the highest average high temperature) is August (92.5°F).
The month with the lowest average high temperature is January (60.1°F).
- Average low temperature in September: 73°F
The month with the highest average low temperature is August (77.4°F).
The coldest month (with the lowest average low temperature) is January (46°F).
Average pressure in September
Mont Belvieu, TX
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Mont Belvieu, TX
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest month (with the lowest average wind speed) is September (6.2mph).
Average humidity in September
Mont Belvieu, TX
- Average humidity in September: 76%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Mont Belvieu, TX
- Average rainfall in September: 5.16"
The wettest month (with the highest rainfall) is September (5.16").
The driest month (with the least rainfall) is February (1.69").
Average rainfall days in September
Mont Belvieu, TX
- Average rainfall days in September: 19.9 days
The month with the highest number of rainy days is August (20.1 days).
The month with the least rainy days is January (11.3 days).
Average snowfall in September
Mont Belvieu, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Mont Belvieu, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Mont Belvieu, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 8h and 5min
The months with the most sunshine are July and August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in September
Mont Belvieu, TX
- Average sunshine days in September: 8.5 days
The month with the most sunshine days is January (17.8 days).
The month with the least sunshine days is September (8.5 days).
Average UV index in September
Mont Belvieu, 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 3).
Average cloud cover in September
Mont Belvieu, TX
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are July, August and October (Cloud cover 27).
Average visibility in September
Mont Belvieu, 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).
Mont Belvieu, Texas, USA
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