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 arrival of September corresponds with a light shift in temperature, down from a sweltering 95.5°F (35.3°C) in August to a hot 89.6°F (32°C). In the month of September, the average low-temperature usually rests at a pleasant 72.5°F (22.5°C).Heat index
The average heat index in September is evaluated at a blistering 107.6°F (42°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', takes into account both air temperature and humidity to illustrate what people actually feel. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.
Humidity
The average relative humidity in September is 73%.Rainfall
In Humble, in September, during 19.5 rainfall days, 4.13" (105mm) of precipitation is typically accumulated. In Humble, during the entire year, the rain falls for 189.2 days and collects up to 37.99" (965mm) of precipitation.Snowfall
March through November are months without snowfall in Humble.Daylight
In September, the average length of the day is 12h and 20min.On the first day of September, sunrise is at 6:58 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 September, the average sunshine is 8.5h.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:
Fend off overexposure. Sun protection is vital. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Humble have in September?
What is the UV index reading in September?
Average temperature in September
Humble, 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 (77.5°F).
The coldest month (with the lowest average low temperature) is January (45.1°F).
Average pressure in September
Humble, 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
Humble, TX
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is September (5.7mph).
Average humidity in September
Humble, TX
- Average humidity in September: 73%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Humble, TX
- Average rainfall in September: 4.13"
The wettest month (with the highest rainfall) is May (5.31").
The driest month (with the least rainfall) is February (2.05").
Average rainfall days in September
Humble, TX
- Average rainfall days in September: 19.5 days
The month with the highest number of rainy days is June (19.6 days).
The month with the least rainy days is January (12.7 days).
Average snowfall in September
Humble, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.16").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Humble, 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
Humble, 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 3min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Humble, TX
- Average sunshine days in September: 8.9 days
The months with the most sunshine days are January and October (16.3 days).
The month with the least sunshine days is June (7.8 days).
Average UV index in September
Humble, 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
Humble, TX
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Humble, TX
- Average visibility in September: 6mi
The months with the highest visibility are January, February, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are March and April (5mi).
Humble, Texas, USA
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