September weather forecastAmarillo, TX
September
Weather in September
September in Amarillo marks the gradual farewell to the dominant summer heat and welcomes the onset of the fall season. The adjustment from summer to fall is gentle with a slight drop in temperatures. This month experiences 1.18" (30mm) of rainfall, seemingly creating a softer transition between the seasons. With fall's arrival come shorter daylight hours and a subtle shift in the color of the city's foliage. Essentially, September denotes a climatic change towards a milder and more comfortable environment.Temperature
September brings a slight decrease in the average high-temperature, shifting from a hot 91.8°F (33.2°C) in August to a moderately hot 83.3°F (28.5°C). Amarillo experiences an average low-temperature reading of 62.8°F (17.1°C) throughout September.Heat index
Throughout September, the heat index is calculated to be 84.2°F (29°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.It is essential to grasp that the heat index's numbers are for shade and light wind settings. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', comes about by integrating the temperature readings with the humidity levels. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for 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.
Humidity
The average relative humidity in September is 53%.Rainfall
In Amarillo, in September, during 10.4 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. In Amarillo, during the entire year, the rain falls for 80.4 days and collects up to 9.76" (248mm) of precipitation.Snowfall
In Amarillo, Texas, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 23min.On the first day of September in Amarillo, sunrise is at 7:20 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 7:32 pm CDT.
Sunshine
In September, the average sunshine is 9.3h.UV index
In Amarillo, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Prevent overexposure. Protection from the sun's harmful effects is needed. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Amarillo, TX
- Average high temperature in September: 83.3°F
The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is December (49.8°F).
- Average low temperature in September: 62.8°F
The month with the highest average low temperature is July (71.2°F).
The coldest months (with the lowest average low temperature) are January and December (31.1°F).
Average pressure in September
Amarillo, TX
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in September
Amarillo, TX
- Average wind speed in September: 11.4mph
The windiest month (with the highest average wind speed) is April (14.1mph).
The calmest month (with the lowest average wind speed) is August (10.7mph).
Average humidity in September
Amarillo, TX
- Average humidity in September: 53%
The month with the highest relative humidity is December (54%).
The month with the lowest relative humidity is April (42%).
Average rainfall in September
Amarillo, TX
- Average rainfall in September: 1.18"
The wettest months (with the highest rainfall) are July and October (1.26").
The driest month (with the least rainfall) is February (0.24").
Average rainfall days in September
Amarillo, TX
- Average rainfall days in September: 10.4 days
The month with the highest number of rainy days is July (11.6 days).
The months with the least rainy days are January and February (2.5 days).
Average snowfall in September
Amarillo, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.18").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Amarillo, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (3.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Amarillo, TX
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 9h and 18min
The month with the most sunshine is June (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in September
Amarillo, TX
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is January (26.3 days).
The month with the least sunshine days is July (15.4 days).
Average UV index in September
Amarillo, TX
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Amarillo, TX
- Average cloud cover in September: 20
The month with the most cloud cover is February (Cloud cover 23).
The month with the least cloud cover is June (Cloud cover 14).
Average visibility in September
Amarillo, 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).
