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 Blackwell, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's fiery hot 95.5°F (35.3°C) to a tropical 87.1°F (30.6°C). Throughout September, Blackwell witnesses a nighttime temperature average of 68.7°F (20.4°C).Heat index
The heat index value for September is estimated at a tropical 91.4°F (33°C). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.Heat index details are generally centered around shaded locations and a mild breeze. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', offers an insight into how hot it feels when we factor in moisture content. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Humidity
September and November, with an average relative humidity of 57%, are the most humid months.Rainfall
In Blackwell, during September, the rain falls for 11.3 days and regularly aggregates up to 1.93" (49mm) of precipitation. Throughout the year, in Blackwell, there are 89.1 rainfall days, and 15.59" (396mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall in Blackwell.Daylight
The average length of the day in September is 12h and 21min.On the first day of the month, sunrise is at 7:17 am and sunset at 8:05 pm. On the last day of September, in Blackwell, sunrise is at 7:35 am and sunset at 7:26 pm CDT.
Sunshine
In Blackwell, the average sunshine in September is 8.8h.UV index
In September, the average daily maximum UV index in Blackwell, Texas, 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 the ordinary person.Note: The daily high UV index of 6 in September translates into this advice:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in Blackwell in September?
What are the most humid months in Blackwell?
What is the average humidity in September in Blackwell?
How many days does it rain in September in Blackwell?
When it does not snow in Blackwell?
What is the average length of the day in September in Blackwell?
When is the sunrise / sunset in September in Blackwell?
How long on average sun shines in September in Blackwell?
What is the UV index intensity in September in Blackwell?
Average temperature in September
Blackwell, TX
- Average high temperature in September: 87.1°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The months with the lowest average high temperature are January and December (57.4°F).
- Average low temperature in September: 68.7°F
The month with the highest average low temperature is August (75.2°F).
The coldest month (with the lowest average low temperature) is January (38.1°F).
Average pressure in September
Blackwell, TX
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Blackwell, TX
- Average wind speed in September: 9.7mph
The windiest month (with the highest average wind speed) is April (13.5mph).
The calmest month (with the lowest average wind speed) is September (9.7mph).
Average humidity in September
Blackwell, TX
- Average humidity in September: 57%
The months with the highest relative humidity are September and November (57%).
The month with the lowest relative humidity is August (46%).
Average rainfall in September
Blackwell, TX
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is January (0.59").
Average rainfall days in September
Blackwell, TX
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is May (11.4 days).
The month with the least rainy days is January (3.6 days).
Average snowfall in September
Blackwell, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Blackwell, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.5 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
Blackwell, 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 5min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in September
Blackwell, TX
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is January (26.3 days).
The month with the least sunshine days is September (16.1 days).
Average UV index in September
Blackwell, 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
Blackwell, TX
- Average cloud cover in September: 26
The month with the most cloud cover is March (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in September
Blackwell, 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).
Blackwell, Texas, USA
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