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 shift from August to September includes a small decrease in the average high-temperature, from a hot 94.3°F (34.6°C) to a still tropical 86.5°F (30.3°C). Throughout September, Cleo records an average temperature of 68.2°F (20.1°C) at night.Heat index
In September, the average heat index is evaluated at a tropical 93.2°F (34°C). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.In the scope of the heat index, its values resonate with shade and light wind conditions. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gives an indication of how one might feel in terms of heat after considering humidity. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Take note that direct exposure to the sun can increase the felt temperature, possibly adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.
Humidity
In Cleo, the average relative humidity in September is 62%.Rainfall
In Cleo, during September, the rain falls for 12.4 days and regularly aggregates up to 1.57" (40mm) of precipitation. Throughout the year, there are 100.7 rainfall days, and 14.65" (372mm) of precipitation is accumulated.Snowfall
In Cleo, Texas, snow does not fall in March through October.Daylight
The average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 7:16 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:25 pm CDT.
Sunshine
In Cleo, the average sunshine in September is 8.7h.UV index
In Cleo, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.Note: A maximum UV index of 6 in September translates into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September in Cleo?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Cleo have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Cleo, TX
- Average high temperature in September: 86.5°F
The warmest month (with the highest average high temperature) is August (94.3°F).
The month with the lowest average high temperature is January (59.4°F).
- Average low temperature in September: 68.2°F
The month with the highest average low temperature is August (73.4°F).
The coldest month (with the lowest average low temperature) is January (40.3°F).
Average pressure in September
Cleo, TX
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are May and June (29.89"Hg).
Average wind speed in September
Cleo, TX
- Average wind speed in September: 8.8mph
The windiest month (with the highest average wind speed) is April (13mph).
The calmest month (with the lowest average wind speed) is September (8.8mph).
Average humidity in September
Cleo, TX
- Average humidity in September: 62%
The months with the highest relative humidity are May and November (64%).
The month with the lowest relative humidity is August (52%).
Average rainfall in September
Cleo, TX
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is May (2.24").
The driest month (with the least rainfall) is November (0.55").
Average rainfall days in September
Cleo, TX
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is September (12.4 days).
The month with the least rainy days is January (4.8 days).
Average snowfall in September
Cleo, TX
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.28").
The months with the least snowfall are March, April, May, June, July, August, September and October (0").
Average snowfall days in September
Cleo, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.7 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Cleo, 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 July (Average sunshine: 11h and 6min).
The months with the least sunshine are November and December (Average sunshine: 6h and 6min).
Average sunshine days in September
Cleo, TX
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is January (24.8 days).
The month with the least sunshine days is September (15.5 days).
Average UV index in September
Cleo, TX
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Cleo, TX
- Average cloud cover in September: 29
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in September
Cleo, 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).
Cleo, Texas, USA
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