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
During the shift to September, a minor reduction in average high-temperature is observed, shifting from a very hot 95.5°F (35.3°C) in August to a hot 89.6°F (32°C). Throughout the month of September, North Houston observes an average nighttime temperature of 72.5°F (22.5°C).Heat index
For most parts of September, the heat index is calculated to be a blisteringly hot 107.6°F (42°C). Exercise heightened safety, heat cramps and heat exhaustion are probable. Persistent activity may provoke heatstroke.Understanding the heat index involves considering values for shaded locales with light wind. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. Augmented relative humidity impedes typical body cooling mechanisms by lowering the evaporation rate, resulting in decreased body cooling and an amplified perception of heat. As body temperatures escalate without effective heat release, one might face dehydration threats.
Humidity
In North Houston, the average relative humidity in September is 73%.Rainfall
In September, in North Houston, the rain falls for 18.9 days. Throughout September, 2.91" (74mm) of precipitation is accumulated. Throughout the year, in North Houston, there are 159.4 rainfall days, and 23.11" (587mm) of precipitation is accumulated.Snowfall
February through November are months without snowfall in North Houston.Daylight
In September, the average length of the day is 12h and 20min.On the first day of September in North Houston, sunrise is at 6:59 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:14 am and sunset at 7:07 pm CDT.
Sunshine
In North Houston, Texas, the average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in North Houston in September?
What is the average humidity in September in North Houston?
How much does it rain in North Houston in September?
When it does not snow in North Houston?
What is the average length of the day in September in North Houston?
When are sunrise and sunset in September in North Houston?
How long on average sun shines in September in North Houston?
What is the UV index intensity in September in North Houston?
Average temperature in September
North Houston, TX
- Average high temperature in September: 89.6°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (61°F).
- Average low temperature in September: 72.5°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 (45.1°F).
Average pressure in September
North Houston, 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
North Houston, TX
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest month (with the lowest average wind speed) is September (5.7mph).
Average humidity in September
North Houston, TX
- Average humidity in September: 73%
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
North Houston, TX
- Average rainfall in September: 2.91"
The wettest month (with the highest rainfall) is May (3.54").
The driest month (with the least rainfall) is February (1.02").
Average rainfall days in September
North Houston, TX
- Average rainfall days in September: 18.9 days
The month with the highest number of rainy days is September (18.9 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in September
North Houston, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
North Houston, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
North Houston, 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 2min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
North Houston, TX
- Average sunshine days in September: 9.1 days
The month with the most sunshine days is January (19.4 days).
The month with the least sunshine days is September (9.1 days).
Average UV index in September
North Houston, 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
North Houston, TX
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
North Houston, 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).
North Houston, Texas, USA
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