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's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's sweltering 95°F (35°C) to a tropical 87.1°F (30.6°C). Wylie witnesses an average low-temperature of 69.1°F (20.6°C) throughout the month of September.Heat index
In September, the heat index is calculated to be a fiery hot 95°F (35°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.Records show heat index calculations are tailored for shaded regions and mild winds. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.
Humidity
In Wylie, Texas, the average relative humidity in September is 65%.Rainfall
In Wylie, during September, the rain falls for 14.1 days and regularly aggregates up to 2.01" (51mm) of precipitation. Throughout the year, in Wylie, there are 124.3 rainfall days, and 20.47" (520mm) of precipitation is accumulated.Snowfall
In Wylie, snow does not fall in January, March through October.Daylight
In September, the average length of the day is 12h and 22min.On the first day of September, sunrise is at 7:01 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:11 pm CDT.
Sunshine
The average sunshine in September in Wylie is 8.3h.UV index
In Wylie, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In September, a regular UV index of 6 translates into these guidelines:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Frequently asked questions
How hot is it in Wylie in September?
What is the average humidity in September in Wylie?
How many days does it rain in September in Wylie?
When it does not snow in Wylie?
How many hours of daylight does Wylie have in September?
When is the sunrise / sunset in September in Wylie?
How long on average sun shines in September in Wylie?
What is the UV index reading in September in Wylie?
Average temperature in September
Wylie, TX
- Average high temperature in September: 87.1°F
The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (54°F).
- Average low temperature in September: 69.1°F
The month with the highest average low temperature is August (75°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).
Average pressure in September
Wylie, TX
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Wylie, TX
- Average wind speed in September: 6.8mph
The windiest months (with the highest average wind speed) are February, March and April (9.9mph).
The calmest month (with the lowest average wind speed) is September (6.8mph).
Average humidity in September
Wylie, TX
- Average humidity in September: 65%
The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (59%).
Average rainfall in September
Wylie, TX
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is February (0.91").
Average rainfall days in September
Wylie, TX
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is September (14.1 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in September
Wylie, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.16").
The months with the least snowfall are January, March, April, May, June, July, August, September and October (0").
Average snowfall days in September
Wylie, 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 March, April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Wylie, 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: 8h and 2min
The month with the most sunshine is August (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Wylie, TX
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is September (14.8 days).
Average UV index in September
Wylie, 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, November and December (UV index 3).
Average cloud cover in September
Wylie, TX
- Average cloud cover in September: 30
The months with the most cloud cover are February and March (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Wylie, 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).
Wylie, Texas, USA
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