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 ushers in a slight temperature change, with average high-temperatures reducing from August's very hot 96.8°F (36°C) to a hot 87.3°F (30.7°C). In the month of September, Willowview witnesses a consistent average low-temperature of 68.9°F (20.5°C).Heat index
During September, the heat index is estimated at a hot 91.4°F (33°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.Bear in mind that the heat index values are determined for shaded areas and light breezes. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. 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. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humidity
In Willowview, Texas, the average relative humidity in September is 55%.Rainfall
In September, the rain falls for 10.5 days. Throughout September, 0.79" (20mm) of precipitation is accumulated. In Willowview, during the entire year, the rain falls for 76.7 days and collects up to 8.46" (215mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 7:12 am and sunset at 8:04 pm. On the last day of September, sunrise is at 7:33 am and sunset at 7:23 pm CDT.
Sunshine
In Willowview, the average sunshine in September is 9h.UV index
In September, the average daily maximum UV index in Willowview is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum high daily UV index of 6 during September translates into the following directions:
Avert overexposure. Light-skinned people might experience burning in less than 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. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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 many days does it rain in September in Willowview?
When it does not snow?
How many hours of daylight does Willowview have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Willowview have in September?
What is the UV index intensity in September?
Average temperature in September
Willowview, TX
- Average high temperature in September: 87.3°F
The warmest month (with the highest average high temperature) is July (97.2°F).
The month with the lowest average high temperature is December (53.2°F).
- Average low temperature in September: 68.9°F
The month with the highest average low temperature is July (76.8°F).
The coldest month (with the lowest average low temperature) is January (34.9°F).
Average pressure in September
Willowview, 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
Willowview, TX
- Average wind speed in September: 9.8mph
The windiest month (with the highest average wind speed) is April (13mph).
The calmest month (with the lowest average wind speed) is August (9.6mph).
Average humidity in September
Willowview, TX
- Average humidity in September: 55%
The month with the highest relative humidity is December (57%).
The month with the lowest relative humidity is August (46%).
Average rainfall in September
Willowview, TX
- Average rainfall in September: 0.79"
The wettest month (with the highest rainfall) is May (1.54").
The driest months (with the least rainfall) are February and November (0.24").
Average rainfall days in September
Willowview, TX
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is September (10.5 days).
The month with the least rainy days is January (2.3 days).
Average snowfall in September
Willowview, TX
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.47").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Willowview, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Willowview, 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: 9h and 0min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The months with the least sunshine are November and December (Average sunshine: 6h and 42min).
Average sunshine days in September
Willowview, TX
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is January (27.5 days).
The month with the least sunshine days is September (16.1 days).
Average UV index in September
Willowview, 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
Willowview, TX
- Average cloud cover in September: 24
The month with the most cloud cover is March (Cloud cover 27).
The month with the least cloud cover is June (Cloud cover 15).
Average visibility in September
Willowview, 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).
Willowview, Texas, USA
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