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 heralds a minor drop in average high-temperature, sliding from August's very hot 95.9°F (35.5°C) to a tropical 88°F (31.1°C). Valley Mills, in September, experiences an average temperature of 70.2°F (21.2°C) at night.Heat index
During September, the heat index is evaluated at a torrid 96.8°F (36°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.One should consider that heat index numbers are for shaded settings and light wind. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
In the face of high temperatures, the human body's reflex is to perspire, leveraging sweat evaporation for cooling. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
In September, the average relative humidity in Valley Mills is 64%.Rainfall
In September, the rain falls for 12.2 days. Throughout September, 1.26" (32mm) of precipitation is accumulated. In Valley Mills, during the entire year, the rain falls for 109.9 days and collects up to 15.2" (386mm) of precipitation.Snowfall
April through December are months without snowfall in Valley Mills.Daylight
In September, the average length of the day in Valley Mills is 12h and 21min.On the first day of the month, sunrise is at 7:06 am and sunset at 7:53 pm. On the last day of September, sunrise is at 7:23 am and sunset at 7:15 pm CDT.
Sunshine
In September, the average sunshine in Valley Mills, Texas, is 8.5h.UV index
The average daily maximum UV index in September in Valley Mills, Texas, is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 6 in September translates into this advice:
Ward off overexposure. Defence against solar harm is crucial. 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. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Frequently asked questions
How hot is it in Valley Mills in September?
What is the average humidity in September in Valley Mills?
How much does it rain in Valley Mills in September?
When it does not snow in Valley Mills?
What is the average length of the day in September in Valley Mills?
When is the sunrise / sunset in September in Valley Mills?
How long on average sun shines in September in Valley Mills?
What is the UV index intensity in September in Valley Mills?
Average temperature in September
Valley Mills, TX
- Average high temperature in September: 88°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 (56.8°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 (40.3°F).
Average pressure in September
Valley Mills, 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
Valley Mills, TX
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is March (10.9mph).
The calmest month (with the lowest average wind speed) is September (7.1mph).
Average humidity in September
Valley Mills, TX
- Average humidity in September: 64%
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (55%).
Average rainfall in September
Valley Mills, TX
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is June (2.05").
The driest month (with the least rainfall) is November (0.59").
Average rainfall days in September
Valley Mills, TX
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is May (12.7 days).
The month with the least rainy days is January (5.4 days).
Average snowfall in September
Valley Mills, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.24").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Valley Mills, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Valley Mills, 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
Valley Mills, TX
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is May (14.8 days).
Average UV index in September
Valley Mills, 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
Valley Mills, 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
Valley Mills, 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).
Valley Mills, Texas, USA
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