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
Onset of September witnesses a reduction in the average high-temperature, falling from a fiery hot 97.2°F (36.2°C) in August to a tropical 87.3°F (30.7°C). During September, Vernon's temperature averages to an agreeable 68.9°F (20.5°C) at night.Heat index
The average heat index in September is estimated at a hot 93.2°F (34°C). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.In terms of the heat index, values are set with light wind and shade conditions in mind. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
In September, the average relative humidity is 57%.Rainfall
In Vernon, during September, the rain falls for 12.2 days and regularly aggregates up to 2.09" (53mm) of precipitation. In Vernon, Texas, during the entire year, the rain falls for 102.8 days and collects up to 19.92" (506mm) of precipitation.Snowfall
May through October are months without snowfall in Vernon.Daylight
The average length of the day in September in Vernon 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
The average sunshine in September is 8.7h.UV index
In Vernon, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 6 suggests this advice:
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. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
Is it hot in Vernon during September?
What is the average humidity in September in Vernon?
How much does it rain in Vernon in September?
When it does not snow in Vernon?
What is the average length of the day in September in Vernon?
When are sunrise and sunset in September in Vernon?
How many hours of sunshine does Vernon have in September?
What is the UV index reading 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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