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
In the transition to September, Armstrong observes a minor drop in the average high-temperature, shifting from a torrid 98.1°F (36.7°C) in August to a tropical 91.2°F (32.9°C). An average minimum temperature of 75.2°F (24°C) is recorded during the month of September.Heat index
In September, the heat index is estimated at an extremely hot 109.4°F (43°C). Mind: Heat cramps along with heat exhaustion are anticipated. Heatstroke can develop with continued physical activity.Heat index determinations are made taking into account the shade and light air movements. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. With higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.
Humidity
In September, the average relative humidity is 69%.Rainfall
The month with the most rainfall is September, when the rain falls for 17.4 days and typically aggregates up to 2.64" (67mm) of precipitation.Snowfall
In Armstrong, snow does not fall in February through December.Daylight
The average length of the day in September is 12h and 18min.On the first day of September, sunrise is at 7:10 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:18 pm CDT.
Sunshine
The average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: In September, the UV index of 7 transforms into the following advice:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Experience reduced UV exposure by about half when donning a wide-brim hat.
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 in Armstrong?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Armstrong have in September?
What is the UV index intensity in September?
Average temperature in September
Armstrong, TX
- Average high temperature in September: 91.2°F
The warmest month (with the highest average high temperature) is August (98.1°F).
The month with the lowest average high temperature is January (67.1°F).
- Average low temperature in September: 75.2°F
The month with the highest average low temperature is August (77.7°F).
The coldest month (with the lowest average low temperature) is January (50.5°F).
Average pressure in September
Armstrong, TX
- Average pressure in September: 29.91"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are May and June (29.87"Hg).
Average wind speed in September
Armstrong, TX
- Average wind speed in September: 8.3mph
The windiest month (with the highest average wind speed) is May (11.4mph).
The calmest month (with the lowest average wind speed) is September (8.3mph).
Average humidity in September
Armstrong, TX
- Average humidity in September: 69%
The month with the highest relative humidity is December (71%).
The month with the lowest relative humidity is August (63%).
Average rainfall in September
Armstrong, TX
- Average rainfall in September: 2.64"
The wettest month (with the highest rainfall) is September (2.64").
The driest month (with the least rainfall) is February (0.63").
Average rainfall days in September
Armstrong, TX
- Average rainfall days in September: 17.4 days
The month with the highest number of rainy days is September (17.4 days).
The month with the least rainy days is August (7 days).
Average snowfall in September
Armstrong, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Armstrong, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Armstrong, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- 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 6min).
Average sunshine days in September
Armstrong, TX
- Average sunshine days in September: 10.5 days
The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is September (10.5 days).
Average UV index in September
Armstrong, TX
- Average UV index in September: 7
The month with the highest UV index is July (UV index 8).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in September
Armstrong, TX
- Average cloud cover in September: 31
The month with the most cloud cover is December (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in September
Armstrong, 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).
Armstrong, Texas, USA
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