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 average high-temperature shows a slight dip in September, from August's sweltering 96.1°F (35.6°C) to a hot 89.4°F (31.9°C). Shenandoah's temperature drops to an average low of 71.8°F (22.1°C) during the nights of September.Heat index
September's average heat index is appraised at a scorching 105.8°F (41°C). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. 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 highly important for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
The average relative humidity in September in Shenandoah is 72%.Rainfall
In September, in Shenandoah, the rain falls for 19.1 days. Throughout September, 3.54" (90mm) of precipitation is accumulated. In Shenandoah, Texas, during the entire year, the rain falls for 178.1 days and collects up to 34.25" (870mm) of precipitation.Snowfall
In Shenandoah, snow does not fall in March through November.Daylight
In September, the average length of the day in Shenandoah is 12h and 20min.On the first day of September, sunrise is at 6:59 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:08 pm CDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
In Shenandoah, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high daily UV index of 6 during September translates into the following directions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Frequently asked questions
Is it hot in Shenandoah during September?
What is the average humidity in September in Shenandoah?
How much does it rain in Shenandoah in September?
When it does not snow in Shenandoah?
What is the average length of the day in September in Shenandoah?
What time are sunrise and sunset in September in Shenandoah?
How many hours of sunshine does Shenandoah have in September?
What is the UV index reading in September in Shenandoah?
Average temperature in September
Shenandoah, TX
- Average high temperature in September: 89.4°F
The warmest month (with the highest average high temperature) is August (96.1°F).
The month with the lowest average high temperature is January (60.1°F).
- Average low temperature in September: 71.8°F
The month with the highest average low temperature is August (76.3°F).
The coldest month (with the lowest average low temperature) is January (43.9°F).
Average pressure in September
Shenandoah, 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
Shenandoah, TX
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is September (5.4mph).
Average humidity in September
Shenandoah, TX
- Average humidity in September: 72%
The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Shenandoah, TX
- Average rainfall in September: 3.54"
The wettest month (with the highest rainfall) is May (4.33").
The driest month (with the least rainfall) is November (1.89").
Average rainfall days in September
Shenandoah, TX
- Average rainfall days in September: 19.1 days
The month with the highest number of rainy days is September (19.1 days).
The month with the least rainy days is January (12.1 days).
Average snowfall in September
Shenandoah, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.16").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Shenandoah, 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
Shenandoah, 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 3min
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 54min).
Average sunshine days in September
Shenandoah, TX
- Average sunshine days in September: 9.1 days
The month with the most sunshine days is October (17.1 days).
The month with the least sunshine days is September (9.1 days).
Average UV index in September
Shenandoah, 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
Shenandoah, TX
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Shenandoah, TX
- Average visibility in September: 6mi
The months with the highest visibility are January, June, August, September, October, November and December (6mi).
The months with the lowest visibility are February, March, April, May and July (5mi).
Shenandoah, Texas, USA
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