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 onset sees an average high-temperature of a still hot 88.3°F (31.3°C), exhibiting a slight fluctuation from the previous month. September's average low-temperature reading settles at an agreeable 71.1°F (21.7°C).Heat index
The average heat index in September is calculated to be an extremely hot 105.8°F (41°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.In reference to the heat index, it's for places in shade and with a slight wind. 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 'apparent temperature' or 'feels like', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. 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 remain especially vital for babies and toddlers. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
The average relative humidity in September is 77%.Rainfall
In China, in September, during 17.5 rainfall days, 3.7" (94mm) of precipitation is typically accumulated. Throughout the year, there are 174.4 rainfall days, and 35.67" (906mm) of precipitation is accumulated.Snowfall
In China, snow does not fall in February through December.Daylight
In September, the average length of the day is 12h and 20min.On the first day of the month, sunrise is at 6:54 am and sunset at 7:39 pm. On the last day of September, sunrise is at 7:10 am and sunset at 7:03 pm CDT.
Sunshine
In China, the average sunshine in September is 9.2h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 6 during September translates into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
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?
When it does not snow?
How many hours of daylight does China have in September?
When are sunrise and sunset in September?
How many hours of sunshine does China have in September?
How high is the UV index in September?
Average temperature in September
China, TX
- Average high temperature in September: 88.3°F
The warmest month (with the highest average high temperature) is August (93.2°F).
The month with the lowest average high temperature is January (59.5°F).
- Average low temperature in September: 71.1°F
The month with the highest average low temperature is July (75.6°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).
Average pressure in September
China, TX
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
China, TX
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest months (with the lowest average wind speed) are July, August and September (5.3mph).
Average humidity in September
China, TX
- Average humidity in September: 77%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
China, TX
- Average rainfall in September: 3.7"
The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is February (2.05").
Average rainfall days in September
China, TX
- Average rainfall days in September: 17.5 days
The month with the highest number of rainy days is August (17.8 days).
The months with the least rainy days are January and November (12.3 days).
Average snowfall in September
China, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.16").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
China, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
China, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
China, TX
- Average sunshine days in September: 11.3 days
The month with the most sunshine days is January (17.2 days).
The months with the least sunshine days are February and June (11.1 days).
Average UV index in September
China, 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 and December (UV index 3).
Average cloud cover in September
China, TX
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 53).
The months with the least cloud cover are August and October (Cloud cover 29).
Average visibility in September
China, TX
- Average visibility in September: 5mi
The months with the highest visibility are January, May, June, July, August, October, November and December (6mi).
The months with the lowest visibility are February, March, April and September (5mi).
China, Texas, USA
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