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 brings a slight decrease in temperature, down from a fiery hot 95.5°F (35.3°C) in August to a tropical 89.2°F (31.8°C). During the nights in September, Chester experiences a consistent average temperature of 69.1°F (20.6°C).Heat index
For most parts of September, the heat index is calculated to be a scorching 107.6°F (42°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.It is important to note that the heat index values are for shaded areas and light wind scenarios. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. 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.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. Elevated relative humidity diminishes evaporation, thereby reducing the body's ability to shed heat and creating a feeling of being too warm. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
Humidity
The average relative humidity in September in Chester, Texas, is 76%.Rainfall
In Chester, Texas, in September, it is raining for 16.7 days, with typically 3.39" (86mm) of accumulated precipitation. In Chester, during the entire year, the rain falls for 172.1 days and collects up to 34.88" (886mm) of precipitation.Snowfall
March through November are months without snowfall.Daylight
In Chester, Texas, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:55 am and sunset at 7:41 pm. On the last day of September, sunrise is at 7:11 am and sunset at 7:04 pm CDT.
Sunshine
In Chester, the average sunshine in September is 8.7h.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 unsafe exposure to UV radiation for ordinary individuals.Note: In September, the maximum UV index of 6 translates into these guidelines:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in Chester?
What is the average humidity in September in Chester?
How much does it rain in Chester in September?
When it does not snow in Chester?
How many hours of daylight does Chester have in September?
What time are sunrise and sunset in September in Chester?
How long on average sun shines in September in Chester?
What is the UV index intensity in September in Chester?
Average temperature in September
Chester, TX
- Average high temperature in September: 89.2°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (57.9°F).
- Average low temperature in September: 69.1°F
The month with the highest average low temperature is July (73.6°F).
The coldest month (with the lowest average low temperature) is January (41°F).
Average pressure in September
Chester, 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
Chester, TX
- Average wind speed in September: 4.5mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest months (with the lowest average wind speed) are July and August (4.4mph).
Average humidity in September
Chester, TX
- Average humidity in September: 76%
The month with the highest relative humidity is February (83%).
The months with the lowest relative humidity are August and October (73%).
Average rainfall in September
Chester, TX
- Average rainfall in September: 3.39"
The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is November (2.24").
Average rainfall days in September
Chester, TX
- Average rainfall days in September: 16.7 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 (11.4 days).
Average snowfall in September
Chester, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.39").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Chester, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.7 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
Chester, 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: 8h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Chester, TX
- Average sunshine days in September: 10.9 days
The month with the most sunshine days is October (18 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in September
Chester, 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
Chester, TX
- Average cloud cover in September: 38
The month with the most cloud cover is February (Cloud cover 55).
The months with the least cloud cover are August and October (Cloud cover 36).
Average visibility in September
Chester, TX
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
Chester, Texas, USA
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