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 arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's hot 93.7°F (34.3°C) to a still tropical 88.2°F (31.2°C). Glen Flora's nights in September cool down to an average low-temperature of 72.1°F (22.3°C).Heat index
For September, the heat index is evaluated at an extremely hot 104°F (40°C). Ensure extra safety measures, heat exhaustion and heat cramps are likely. Continuous activity might result in heatstroke.Evaluating the heat index requires understanding its values in the shade and with gentle winds. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', measures the perceived warmth when incorporating the humidity present in the air. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
In Glen Flora, the average relative humidity in September is 77%.Rainfall
September is the month with the most rainfall. Rain falls for 20.4 days and accumulates 4.17" (106mm) of precipitation.Snowfall
March through November are months without snowfall.Daylight
In Glen Flora, Texas, the average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 7:02 am and sunset at 7:46 pm. On the last day of September, sunrise is at 7:17 am and sunset at 7:11 pm CDT.
Sunshine
The average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
What is the rainiest month?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Glen Flora, TX
- Average high temperature in September: 88.2°F
The warmest month (with the highest average high temperature) is August (93.7°F).
The month with the lowest average high temperature is January (61.3°F).
- Average low temperature in September: 72.1°F
The month with the highest average low temperature is August (76.1°F).
The coldest month (with the lowest average low temperature) is January (45.9°F).
Average pressure in September
Glen Flora, TX
- Average pressure in September: 29.95"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
Glen Flora, TX
- Average wind speed in September: 5.9mph
The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest month (with the lowest average wind speed) is September (5.9mph).
Average humidity in September
Glen Flora, TX
- Average humidity in September: 77%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Glen Flora, TX
- Average rainfall in September: 4.17"
The wettest month (with the highest rainfall) is September (4.17").
The driest month (with the least rainfall) is February (1.54").
Average rainfall days in September
Glen Flora, TX
- Average rainfall days in September: 20.4 days
The month with the highest number of rainy days is September (20.4 days).
The month with the least rainy days is January (11.6 days).
Average snowfall in September
Glen Flora, TX
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.12").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Glen Flora, 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
Glen Flora, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Glen Flora, TX
- Average sunshine days in September: 8.4 days
The month with the most sunshine days is January (17.7 days).
The month with the least sunshine days is September (8.4 days).
Average UV index in September
Glen Flora, TX
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Glen Flora, TX
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in September
Glen Flora, TX
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are May and July (5mi).
Glen Flora, Texas, USA
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