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
September signifies a minor drop in average high-temperature, transitioning from a hot 94.6°F (34.8°C) in August to a still tropical 88.7°F (31.5°C). Uncertain marks a considerable descent from the daytime apex, as the average temperature dips to a refreshing 67.1°F (19.5°C) at night throughout September.Heat index
The average heat index in September is evaluated at a fiery hot 102.2°F (39°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.Understanding the heat index involves considering values for shaded locales with light wind. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.
Humidity
In Uncertain, the average relative humidity in September is 69%.Rainfall
September is the month with the least rainfall. Rain falls for 11.2 days and accumulates 1.38" (35mm) of precipitation.Snowfall
In Uncertain, snow does not fall in April through November.Daylight
In Uncertain, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:51 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 7:02 pm CDT.
Sunshine
The average sunshine in September in Uncertain, Texas, is 9.5h.UV index
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.Note: An average maximum UV index of 6 in September leads to these recommendations:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. 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. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Uncertain, TX
- Average high temperature in September: 88.7°F
The warmest month (with the highest average high temperature) is July (95°F).
The month with the lowest average high temperature is January (54°F).
- Average low temperature in September: 67.1°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (37.9°F).
Average pressure in September
Uncertain, TX
- Average pressure in September: 29.98"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
Uncertain, TX
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in September
Uncertain, TX
- Average humidity in September: 69%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Uncertain, TX
- Average rainfall in September: 1.38"
The wettest month (with the highest rainfall) is April (3.58").
The driest month (with the least rainfall) is September (1.38").
Average rainfall days in September
Uncertain, TX
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is July (14.6 days).
The month with the least rainy days is October (8.6 days).
Average snowfall in September
Uncertain, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.35").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Uncertain, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.1 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
Uncertain, 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: 9h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in September
Uncertain, TX
- Average sunshine days in September: 16.3 days
The month with the most sunshine days is October (20.9 days).
The month with the least sunshine days is July (13.3 days).
Average UV index in September
Uncertain, 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, February and December (UV index 3).
Average cloud cover in September
Uncertain, TX
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Uncertain, TX
- Average visibility in September: 6mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).
Uncertain, Texas, USA
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