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
Vernon in September undergoes a mild reduction in the average high-temperature, shifting from August's very hot 97.2°F (36.2°C) to a hot 87.3°F (30.7°C). Throughout the nights in September, Vernon experiences an average low-temperature of 68.9°F (20.5°C).Heat index
For September, the heat index is computed to be a hot 93.2°F (34°C). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.Heat index specifics point out values are for conditions of shade and a slight breeze. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a measure of how hot it feels when the actual air humidity is factored in. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Humidity
In Vernon, Texas, the average relative humidity in September is 57%.Rainfall
In Vernon, in September, it is raining for 12.2 days, with typically 2.09" (53mm) of accumulated precipitation. Throughout the year, there are 102.8 rainfall days, and 19.92" (506mm) of precipitation is accumulated.Snowfall
In Vernon, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 7:11 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 7:22 pm CDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 6 during September translates into these guidelines:
Deter overexposure. Protecting against the sun's effects is essential. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. To cut down UV radiation exposure by about half, sport a wide-brim hat. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
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 much does it rain in September?
When it does not snow?
How many hours of daylight does Vernon have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Vernon have in September?
How high is the UV index in September in Vernon?
Average temperature in September
Vernon, TX
- Average high temperature in September: 87.3°F
The warmest month (with the highest average high temperature) is July (97.3°F).
The month with the lowest average high temperature is December (53.8°F).
- Average low temperature in September: 68.9°F
The month with the highest average low temperature is July (77°F).
The coldest month (with the lowest average low temperature) is January (35.4°F).
Average pressure in September
Vernon, TX
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Vernon, TX
- Average wind speed in September: 9.1mph
The windiest month (with the highest average wind speed) is April (12.4mph).
The calmest months (with the lowest average wind speed) are August and September (9.1mph).
Average humidity in September
Vernon, TX
- Average humidity in September: 57%
The month with the highest relative humidity is May (60%).
The month with the lowest relative humidity is August (47%).
Average rainfall in September
Vernon, TX
- Average rainfall in September: 2.09"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is February (0.75").
Average rainfall days in September
Vernon, TX
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is May (13.2 days).
The month with the least rainy days is January (3.6 days).
Average snowfall in September
Vernon, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.1").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Vernon, TX
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August and October (0 days).
Average daylight in September /
Average sunshine in September
Vernon, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 4min
The months with the most sunshine are June and July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in September
Vernon, TX
- Average sunshine days in September: 15.3 days
The month with the most sunshine days is January (26.3 days).
The months with the least sunshine days are May, August and September (15.3 days).
Average UV index in September
Vernon, TX
- Average UV index in September: 6
The month with the highest UV index is June (UV index 8).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Vernon, TX
- Average cloud cover in September: 25
The month with the most cloud cover is March (Cloud cover 29).
The months with the least cloud cover are June and August (Cloud cover 17).
Average visibility in September
Vernon, 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).
Vernon, Texas, USA
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