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
Vanderpool's weather subtly changes with the onset of September, barely falling from a very hot 96.6°F (35.9°C) in August to a hot 89.2°F (31.8°C). In September, in Vanderpool, the average low-temperature is a pleasant 70.9°F (21.6°C).Heat index
During September, the heat index is calculated to be a very hot 100.4°F (38°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.When assessing, remember that heat index measurements are for light winds and shaded spots. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The effect is personal, with varied weather perceptions among individuals due to differences in body mass, stature, and physical activity. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.
Humidity
The average relative humidity in September in Vanderpool is 64%.Rainfall
In Vanderpool, Texas, during September, the rain falls for 15.2 days and regularly aggregates up to 2.4" (61mm) of precipitation. Throughout the year, there are 130.9 rainfall days, and 17.72" (450mm) of precipitation is accumulated.Snowfall
In Vanderpool, snow does not fall in March through December.Daylight
In Vanderpool, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 7:15 am and sunset at 8:00 pm. On the last day of September, sunrise is at 7:31 am and sunset at 7:24 pm CDT.
Sunshine
The average sunshine in September in Vanderpool is 8.4h.UV index
In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 6 during September translates into these guidelines:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Vanderpool in September?
What is the average humidity in September in Vanderpool?
How many days does it rain in September in Vanderpool?
When it does not snow in Vanderpool?
What is the average length of the day in September in Vanderpool?
When is the sunrise / sunset in September in Vanderpool?
How long on average sun shines in September in Vanderpool?
What is the UV index intensity in September in Vanderpool?
Average temperature in September
Vanderpool, TX
- Average high temperature in September: 89.2°F
The warmest month (with the highest average high temperature) is August (96.6°F).
The month with the lowest average high temperature is January (62.1°F).
- Average low temperature in September: 70.9°F
The month with the highest average low temperature is August (75°F).
The coldest month (with the lowest average low temperature) is January (43.9°F).
Average pressure in September
Vanderpool, TX
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Vanderpool, TX
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is May (9.8mph).
The calmest months (with the lowest average wind speed) are September and December (7.1mph).
Average humidity in September
Vanderpool, TX
- Average humidity in September: 64%
The month with the highest relative humidity is May (69%).
The month with the lowest relative humidity is August (55%).
Average rainfall in September
Vanderpool, TX
- Average rainfall in September: 2.4"
The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is November (0.79").
Average rainfall days in September
Vanderpool, TX
- Average rainfall days in September: 15.2 days
The months with the highest number of rainy days are May and September (15.2 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in September
Vanderpool, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Vanderpool, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.4 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
Vanderpool, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are November and December (Average sunshine: 5h and 36min).
Average sunshine days in September
Vanderpool, TX
- Average sunshine days in September: 13 days
The month with the most sunshine days is January (22.2 days).
The month with the least sunshine days is September (13 days).
Average UV index in September
Vanderpool, 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
Vanderpool, TX
- Average cloud cover in September: 33
The month with the most cloud cover is March (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in September
Vanderpool, 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).
Vanderpool, Texas, USA
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