September weather forecast
Cleveland, TX

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Weather in September

The first month of the autumn, September, is still a hot month in Cleveland, Texas, with an average temperature fluctuating between 70°F (21.1°C) and 89.2°F (31.8°C).

Temperature

With September's onset, the weather reveals a slight temperature decrease, transitioning from a torrid 95.5°F (35.3°C) in August to a hot 89.2°F (31.8°C). Cleveland, in September, witnesses an average low-temperature of 70°F (21.1°C).

Heat index

In September, the average heat index is estimated at a blisteringly hot 107.6°F (42°C). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', comes about by integrating the temperature readings with the humidity levels. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance 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 cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

In Cleveland, the average relative humidity in September is 76%.

Rainfall

In Cleveland, during September, the rain falls for 17.9 days and regularly aggregates up to 3.78" (96mm) of precipitation. In Cleveland, during the entire year, the rain falls for 177.6 days and collects up to 35.75" (908mm) of precipitation.

Snowfall

February through November are months without snowfall.

Daylight

In Cleveland, the average length of the day in September is 12h and 20min.
On the first day of September, sunrise is at 6:57 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:06 pm CDT.

Sunshine

In September, the average sunshine is 8.7h.

UV index

In Cleveland, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk 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:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Enhance your sun protection with tightly woven, yet airy clothing.
Updated: Jun 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

In Cleveland, 89.2°F (31.8°C) is the average high-temperature and 70°F (21.1°C) is the average low-temperature during September. In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is estimated at 107.6°F (42°C).

What is the average humidity in September?

The average relative humidity in September is 76%.

How many days does it rain in September?

In Cleveland, Texas, in September, it is raining for 17.9 days, with typically 3.78" (96mm) of accumulated precipitation.

When it does not snow?

In Cleveland, Texas, snow does not fall in February through November.

What is the average length of the day in September?

The average day length in September is 12h and 20min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 6:57 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:06 pm CDT.

How many hours of sunshine does Cleveland have in September?

The average sunshine duration in September is 8.7h.

How high is the UV index in September?

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Cleveland, TX

Average temperature in September - Cleveland, TX
  • Average high temperature in September: 89.2°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 (59.4°F).

  • Average low temperature in September: 70°F

The month with the highest average low temperature is July (74.7°F).
The coldest month (with the lowest average low temperature) is January (43°F).

Average pressure in September
Cleveland, TX

Average pressure in September - Cleveland, 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
Cleveland, TX

Average wind speed in September - Cleveland, TX
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is September (4.8mph).

Average humidity in September
Cleveland, TX

Average humidity in September - Cleveland, 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
Cleveland, TX

Average rainfall in September - Cleveland, TX
  • Average rainfall in September: 3.78"

The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is November (2.05").

Average rainfall days in September
Cleveland, TX

Average rainfall days in September - Cleveland, TX
  • Average rainfall days in September: 17.9 days

The month with the highest number of rainy days is September (17.9 days).
The month with the least rainy days is January (11.9 days).

Average snowfall in September
Cleveland, TX

Average snowfall in September - Cleveland, TX
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.24").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Cleveland, TX

Average snowfall days in September - Cleveland, 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
Cleveland, TX

Average daylight in September / Average sunshine in September - Cleveland, TX
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days in September
Cleveland, TX

Average sunshine days in September - Cleveland, TX
  • Average sunshine days in September: 10.1 days

The month with the most sunshine days is October (16.8 days).
The month with the least sunshine days is September (10.1 days).

Average UV index in September
Cleveland, TX

Average UV index in September - Cleveland, 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
Cleveland, TX

Average cloud cover in September - Cleveland, TX
  • Average cloud cover in September: 35

The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 31).

Average visibility in September
Cleveland, TX

Average visibility in September - Cleveland, TX
  • Average visibility in September: 5mi

The month with the highest visibility is August (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, September, October, November and December (5mi).

Cleveland, Texas, USA

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