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 onset of September results in a small decrease in the average high-temperature, moderately receding from 94.6°F (34.8°C) in August to a still tropical 87.1°F (30.6°C). During the month of September, Merit's nighttime temperature lowers to an average of 68.7°F (20.4°C).Heat index
The heat index value during September is appraised at a torrid 95°F (35°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.One should consider that heat index numbers are for shaded settings and light wind. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.
Humidity
The average relative humidity in September is 66%.Rainfall
In Merit, in September, during 15.4 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. Throughout the year, there are 146.8 rainfall days, and 33.78" (858mm) of precipitation is accumulated.Snowfall
March through October are months without snowfall in Merit.Daylight
In September, the average length of the day in Merit, Texas, is 12h and 22min.On the first day of September in Merit, sunrise is at 6:59 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:10 pm CDT.
Sunshine
The average sunshine in September is 8.5h.UV index
In September, the average daily maximum UV index in Merit is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Frequently asked questions
Is it hot in Merit during September?
What is the average humidity in September in Merit?
How much does it rain in Merit in September?
When it does not snow in Merit?
What is the average length of the day in September in Merit?
When is the sunrise / sunset in September in Merit?
How long on average sun shines in September in Merit?
What is the UV index intensity in September in Merit?
Average temperature in September
Merit, TX
- Average high temperature in September: 87.1°F
The warmest month (with the highest average high temperature) is August (94.6°F).
The month with the lowest average high temperature is January (53.6°F).
- Average low temperature in September: 68.7°F
The months with the highest average low temperature are July and August (74.8°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).
Average pressure in September
Merit, TX
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Merit, TX
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is March (9.9mph).
The calmest months (with the lowest average wind speed) are August and September (6.8mph).
Average humidity in September
Merit, TX
- Average humidity in September: 66%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is August (60%).
Average rainfall in September
Merit, TX
- Average rainfall in September: 3.03"
The wettest month (with the highest rainfall) is October (4.17").
The driest month (with the least rainfall) is January (1.81").
Average rainfall days in September
Merit, TX
- Average rainfall days in September: 15.4 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in September
Merit, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.75").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days in September
Merit, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 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
Merit, TX
- Average daylight in September: 12h and 2min
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: 8h and 3min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in September
Merit, TX
- Average sunshine days in September: 13.3 days
The month with the most sunshine days is January (21.9 days).
The months with the least sunshine days are May and September (13.3 days).
Average UV index in September
Merit, 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
Merit, TX
- Average cloud cover in September: 29
The months with the most cloud cover are February and March (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Merit, 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).
Merit, Texas, USA
Weather forecast for your location
2. Allow the app to use your location
