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
A moderate decline in average high-temperatures is noted in September, moving from a sweltering 95°F (35°C) in August to a tropical 88°F (31.1°C). During September, Rosser sees a mean low-temperature of 68.9°F (20.5°C).Heat index
In September, the heat index is calculated to be a sweltering 98.6°F (37°C). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.Heat index evaluations are typically in the context of light winds and shaded environments. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a numerical representation of warmth when taking temperature and moisture levels into account. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. 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.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. 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. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.
Humidity
The average relative humidity in September is 67%.Rainfall
In Rosser, Texas, in September, it is raining for 14.7 days, with typically 2.56" (65mm) of accumulated precipitation. Throughout the year, there are 143.5 rainfall days, and 32.24" (819mm) of precipitation is accumulated.Snowfall
In Rosser, snow does not fall in March through December.Daylight
In Rosser, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 7:01 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:11 pm CDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 6 during September leads to these instructions:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Rosser have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Rosser have in September?
How high is the UV index in September?
Average temperature in September
Rosser, TX
- Average high temperature in September: 88°F
The warmest month (with the highest average high temperature) is August (95°F).
The month with the lowest average high temperature is January (55°F).
- Average low temperature in September: 68.9°F
The months with the highest average low temperature are July and August (74.7°F).
The coldest month (with the lowest average low temperature) is January (39.2°F).
Average pressure in September
Rosser, 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
Rosser, TX
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is March (9.3mph).
The calmest month (with the lowest average wind speed) is September (6.2mph).
Average humidity in September
Rosser, TX
- Average humidity in September: 67%
The month with the highest relative humidity is May (78%).
The month with the lowest relative humidity is August (61%).
Average rainfall in September
Rosser, TX
- Average rainfall in September: 2.56"
The wettest month (with the highest rainfall) is October (4.49").
The driest month (with the least rainfall) is January (1.77").
Average rainfall days in September
Rosser, TX
- Average rainfall days in September: 14.7 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (8 days).
Average snowfall in September
Rosser, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.91").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Rosser, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Rosser, 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 3min
The month with the most sunshine is August (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Rosser, TX
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is January (21.6 days).
The month with the least sunshine days is September (13.6 days).
Average UV index in September
Rosser, 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
Rosser, TX
- Average cloud cover in September: 29
The month with the most cloud cover is February (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in September
Rosser, 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).
Rosser, Texas, USA
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