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 arrival of September is marked by a minor reduction in average high-temperature, sliding from 93.4°F (34.1°C) in August to a still tropical 86.5°F (30.3°C). In the month of September, Detroit experiences an average low-temperature of 67.1°F (19.5°C).Heat index
The heat index value for September is estimated at a torrid 95°F (35°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.Always consider that heat index estimations are for light winds and places in the shade. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.
Humidity
In Detroit, the average relative humidity in September is 68%.Rainfall
In Detroit, in September, during 12.6 rainfall days, 2.52" (64mm) of precipitation is typically accumulated. In Detroit, during the entire year, the rain falls for 148.7 days and collects up to 36.57" (929mm) of precipitation.Snowfall
April through October and December are months without snowfall.Daylight
In Detroit, Texas, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:55 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:06 pm CDT.
Sunshine
The average sunshine in September is 9h.UV index
The average daily maximum UV index in September in Detroit is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.Note: In September, a regular UV index of 6 translates into these guidelines:
Deflect overexposure. Sun protection is a necessity. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Detroit during September?
What is the average humidity in September in Detroit?
How much does it rain in Detroit in September?
When it does not snow in Detroit?
How many hours of daylight does Detroit have in September?
What time are sunrise and sunset in September in Detroit?
How many hours of sunshine does Detroit have in September?
What is the UV index reading in September in Detroit?
Average temperature in September
Detroit, TX
- Average high temperature in September: 86.5°F
The warmest month (with the highest average high temperature) is August (93.4°F).
The month with the lowest average high temperature is January (52.2°F).
- Average low temperature in September: 67.1°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (36.5°F).
Average pressure in September
Detroit, TX
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Detroit, TX
- Average wind speed in September: 6.3mph
The windiest months (with the highest average wind speed) are February and March (9.1mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in September
Detroit, TX
- Average humidity in September: 68%
The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Detroit, TX
- Average rainfall in September: 2.52"
The wettest month (with the highest rainfall) is May (4.21").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in September
Detroit, TX
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is March (14.8 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in September
Detroit, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.83").
The months with the least snowfall are April, May, June, July, August, September, October and December (0").
Average snowfall days in September
Detroit, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.2 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
Detroit, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
Detroit, TX
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is April (13.8 days).
Average UV index in September
Detroit, TX
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Detroit, TX
- Average cloud cover in September: 28
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Detroit, 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).
Detroit, Texas, USA
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