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
In September, the average high-temperature marginally drops from a torrid 95.7°F (35.4°C) in August to a hot 87.4°F (30.8°C). Zephyr encounters a steady low-temperature average of 68.9°F (20.5°C) throughout the month of September.Heat index
Throughout September, the heat index is appraised at a hot 93.2°F (34°C). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.In reference to the heat index, it's for places in shade and with a slight wind. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Be mindful that being in direct sunlight might mean feeling hotter, with the heat index rising by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Humidity
In September, the average relative humidity is 60%.Rainfall
In September, the rain falls for 13.5 days. Throughout September, 1.89" (48mm) of precipitation is accumulated. Throughout the year, in Zephyr, there are 115.7 rainfall days, and 19.96" (507mm) of precipitation is accumulated.Snowfall
In Zephyr, snow does not fall in April through November.Daylight
In Zephyr, the average length of the day in September is 12h and 21min.On the first day of September in Zephyr, Texas, sunrise is at 7:11 am and sunset at 7:58 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:20 pm CDT.
Sunshine
In September, the average sunshine in Zephyr, Texas, is 8.7h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A daily maximum UV index of 6 in September translates into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Frequently asked questions
How hot does it get in Zephyr in September?
What is the average humidity in September in Zephyr?
How many days does it rain in September in Zephyr?
When it does not snow in Zephyr?
How many hours of daylight does Zephyr have in September?
When is the sunrise / sunset in September in Zephyr?
How long on average sun shines in September in Zephyr?
What is the UV index reading in September in Zephyr?
Average temperature in September
Zephyr, TX
- Average high temperature in September: 87.4°F
The warmest month (with the highest average high temperature) is August (95.7°F).
The months with the lowest average high temperature are January and December (58.1°F).
- Average low temperature in September: 68.9°F
The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (39°F).
Average pressure in September
Zephyr, TX
- Average pressure in September: 29.96"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
Zephyr, TX
- Average wind speed in September: 8.3mph
The windiest month (with the highest average wind speed) is April (12.1mph).
The calmest month (with the lowest average wind speed) is September (8.3mph).
Average humidity in September
Zephyr, TX
- Average humidity in September: 60%
The month with the highest relative humidity is May (66%).
The month with the lowest relative humidity is August (51%).
Average rainfall in September
Zephyr, TX
- Average rainfall in September: 1.89"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in September
Zephyr, TX
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (14.3 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in September
Zephyr, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.83").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Zephyr, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Zephyr, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in September
Zephyr, TX
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is May (13.4 days).
Average UV index in September
Zephyr, TX
- Average UV index in September: 6
The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Zephyr, TX
- Average cloud cover in September: 28
The months with the most cloud cover are March and May (Cloud cover 34).
The month with the least cloud cover is August (Cloud cover 19).
Average visibility in September
Zephyr, 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).
Zephyr, Texas, USA
Weather forecast for your location
2. Allow the app to use your location
