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 onset of September is marked by a minor decrease in temperature, transitioning from a sweltering 95.9°F (35.5°C) in August to a hot 87.4°F (30.8°C). Throughout September, a steady low-temperature average of 70.2°F (21.2°C) is noted.Heat index
Throughout September, the heat index is estimated at a sweltering 95°F (35°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.Note that heat index values are valued for light wind and location in the shade. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is achieved by amalgamating air temperature with the relative humidity readings. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.
Humidity
In Walnut Springs, the average relative humidity in September is 63%.Rainfall
In Walnut Springs, Texas, during September, the rain falls for 13.9 days and regularly aggregates up to 2.01" (51mm) of precipitation. Throughout the year, in Walnut Springs, there are 125.3 rainfall days, and 24.25" (616mm) of precipitation is accumulated.Snowfall
In Walnut Springs, Texas, snow does not fall in January, March through November.Daylight
In Walnut Springs, Texas, the average length of the day in September is 12h and 21min.On the first day of September in Walnut Springs, sunrise is at 7:06 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 7:16 pm CDT.
Sunshine
The average sunshine in September in Walnut Springs, Texas, is 8.5h.UV index
In Walnut Springs, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum high daily UV index of 6 during September translates into the following directions:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Frequently asked questions
How hot is it in Walnut Springs in September?
What is the average humidity in September in Walnut Springs?
How many days does it rain in September in Walnut Springs?
When it does not snow in Walnut Springs?
What is the average length of the day in September in Walnut Springs?
When is the sunrise / sunset in September in Walnut Springs?
How long on average sun shines in September in Walnut Springs?
How high is the UV index in September in Walnut Springs?
Average temperature in September
Walnut Springs, TX
- Average high temperature in September: 87.4°F
The warmest month (with the highest average high temperature) is August (95.9°F).
The month with the lowest average high temperature is January (56.7°F).
- Average low temperature in September: 70.2°F
The month with the highest average low temperature is August (75.9°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).
Average pressure in September
Walnut Springs, 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
Walnut Springs, TX
- Average wind speed in September: 7.1mph
The windiest months (with the highest average wind speed) are March and April (10.9mph).
The calmest month (with the lowest average wind speed) is September (7.1mph).
Average humidity in September
Walnut Springs, TX
- Average humidity in September: 63%
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (55%).
Average rainfall in September
Walnut Springs, TX
- Average rainfall in September: 2.01"
The wettest month (with the highest rainfall) is October (3.31").
The driest month (with the least rainfall) is November (1.06").
Average rainfall days in September
Walnut Springs, TX
- Average rainfall days in September: 13.9 days
The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is January (6.3 days).
Average snowfall in September
Walnut Springs, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.63").
The months with the least snowfall are January, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Walnut Springs, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Walnut Springs, 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 July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 36min).
Average sunshine days in September
Walnut Springs, TX
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is January (23.4 days).
The month with the least sunshine days is September (14.5 days).
Average UV index in September
Walnut Springs, TX
- Average UV index in September: 6
The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Walnut Springs, TX
- Average cloud cover in September: 29
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Walnut Springs, 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).
Walnut Springs, Texas, USA
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