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
The start of September marks an average high-temperature of a still hot 88.5°F (31.4°C), hardly distinguishable from the conditions in August. Silsbee observes an average low-temperature of 70.7°F (21.5°C) during September nights.Heat index
The heat index value during September is evaluated at an extremely hot 105.8°F (41°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.Heat index evaluations are typically in the context of light winds and shaded environments. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. 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 in Silsbee is 77%.Rainfall
In Silsbee, during September, the rain falls for 18.1 days and regularly aggregates up to 3.74" (95mm) of precipitation. Throughout the year, there are 169.9 rainfall days, and 35.91" (912mm) of precipitation is accumulated.Snowfall
In Silsbee, snow does not fall in February through November.Daylight
In Silsbee, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 6:53 am and sunset at 7:39 pm. On the last day of September, sunrise is at 7:10 am and sunset at 7:02 pm CDT.
Sunshine
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 average person.Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
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 Silsbee have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index reading in September in Silsbee?
Average temperature in September
Silsbee, TX
- Average high temperature in September: 88.5°F
The warmest month (with the highest average high temperature) is August (93.4°F).
The month with the lowest average high temperature is January (59.2°F).
- Average low temperature in September: 70.7°F
The months with the highest average low temperature are July and August (75°F).
The coldest month (with the lowest average low temperature) is January (43.5°F).
Average pressure in September
Silsbee, 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
Silsbee, TX
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Silsbee, TX
- Average humidity in September: 77%
The month with the highest relative humidity is February (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Silsbee, TX
- Average rainfall in September: 3.74"
The wettest month (with the highest rainfall) is August (4.61").
The driest month (with the least rainfall) is February (1.77").
Average rainfall days in September
Silsbee, TX
- Average rainfall days in September: 18.1 days
The month with the highest number of rainy days is August (20.8 days).
The month with the least rainy days is November (9.4 days).
Average snowfall in September
Silsbee, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.2").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Silsbee, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Silsbee, 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 24min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in September
Silsbee, TX
- Average sunshine days in September: 10.2 days
The month with the most sunshine days is January (19.2 days).
The month with the least sunshine days is August (8.3 days).
Average UV index in September
Silsbee, TX
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Silsbee, TX
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in September
Silsbee, TX
- Average visibility in September: 5mi
The months with the highest visibility are January, June, August, October and November (6mi).
The months with the lowest visibility are February, March, April, May, July, September and December (5mi).
Silsbee, Texas, USA
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