September weather forecastConroe, TX
September
Weather in September
September, the first month of the autumn in Conroe, is also a hot month, with an average temperature ranging between min 70.7°F (21.5°C) and max 89.1°F (31.7°C).Temperature
September is marked by a subtle drop in average high-temperatures, transitioning from a very hot 95.5°F (35.3°C) in August to a tropical 89.1°F (31.7°C). Throughout the month of September, Conroe expects an average low of 70.7°F (21.5°C).Heat index
September's heat index is calculated to be a scorching 105.8°F (41°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.In the scope of the heat index, its values resonate with shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. One must note that being under the direct sun can escalate the heat's effects, with the heat index possibly rising by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones are generally at greater risk than adults due to their limited sweating ability. In addition, their large skin surface relative to their small bodies and higher heat production from their activities add to their vulnerability.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
In Conroe, the average relative humidity in September is 74%.Rainfall
In Conroe, in September, during 18.2 rainfall days, 3.5" (89mm) of precipitation is typically accumulated. Throughout the year, there are 176.1 rainfall days, and 34.33" (872mm) of precipitation is accumulated.Snowfall
In Conroe, snow does not fall in February through November.Daylight
In September, the average length of the day is 12h and 20min.On the first day of the month, sunrise is at 6:59 am and sunset at 7:44 pm. On the last day of September, sunrise is at 7:15 am and sunset at 7:07 pm CDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
The average daily maximum UV index in September in Conroe is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 6 during September translates into these guidelines:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Conroe, TX
- Average high temperature in September: 89.1°F
The warmest month (with the highest average high temperature) is August (95.5°F).
The month with the lowest average high temperature is January (59.2°F).
- Average low temperature in September: 70.7°F
The months with the highest average low temperature are July and August (74.8°F).
The coldest month (with the lowest average low temperature) is January (42.8°F).
Average pressure in September
Conroe, TX
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Conroe, TX
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is September (5.1mph).
Average humidity in September
Conroe, TX
- Average humidity in September: 74%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (69%).
Average rainfall in September
Conroe, TX
- Average rainfall in September: 3.5"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is November (1.97").
Average rainfall days in September
Conroe, TX
- Average rainfall days in September: 18.2 days
The month with the highest number of rainy days is September (18.2 days).
The months with the least rainy days are January and October (12.1 days).
Average snowfall in September
Conroe, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.16").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Conroe, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Conroe, TX
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in September
Conroe, TX
- Average sunshine days in September: 9.9 days
The months with the most sunshine days are January and October (16.6 days).
The month with the least sunshine days is September (9.9 days).
Average UV index in September
Conroe, 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 3).
Average cloud cover in September
Conroe, TX
- Average cloud cover in September: 35
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Conroe, TX
- Average visibility in September: 5mi
The months with the highest visibility are January, August and October (6mi).
The months with the lowest visibility are February, March, April, May, June, July, September, November and December (5mi).
