September weather forecastGeneva, TX
September
Weather in September
The first month of the autumn, September, is still a tropical month in Geneva, Texas, with an average temperature fluctuating between 68.2°F (20.1°C) and 88.5°F (31.4°C).Temperature
A mild shift in the average high-temperature occurs in September, reducing from a hot 94.6°F (34.8°C) in August to a still tropical 88.5°F (31.4°C). Throughout September, a steady low-temperature average of 68.2°F (20.1°C) is noted.Heat index
For most parts of September, the heat index is computed to be an extremely hot 104°F (40°C). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.The metrics for the heat index are tailored for both shady environments and light winds. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', arises from combining readings of air temperature and relative moisture content. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.
Humidity
The average relative humidity in September in Geneva is 74%.Rainfall
In Geneva, in September, during 12.8 rainfall days, 2.05" (52mm) of precipitation is typically accumulated. In Geneva, during the entire year, the rain falls for 144.1 days and collects up to 24.57" (624mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In Geneva, the average length of the day in September is 12h and 21min.On the first day of September, sunrise is at 6:51 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 7:01 pm CDT.
Sunshine
In September, the average sunshine is 9.2h.UV index
The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In September, an average UV index of 6 transforms into the following instructions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Geneva, TX
- Average high temperature in September: 88.5°F
The warmest months (with the highest average high temperature) are July and August (94.6°F).
The month with the lowest average high temperature is January (56.3°F).
- Average low temperature in September: 68.2°F
The month with the highest average low temperature is July (73.8°F).
The coldest month (with the lowest average low temperature) is January (40.1°F).
Average pressure in September
Geneva, 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
Geneva, TX
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).
Average humidity in September
Geneva, TX
- Average humidity in September: 74%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are August and October (71%).
Average rainfall in September
Geneva, TX
- Average rainfall in September: 2.05"
The wettest month (with the highest rainfall) is August (2.83").
The driest month (with the least rainfall) is November (1.46").
Average rainfall days in September
Geneva, TX
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is August (16.3 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in September
Geneva, TX
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.08").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Geneva, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.6 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Geneva, TX
- Average daylight in September: 12h and 18min
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: 9h and 12min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Geneva, TX
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is August (12.2 days).
Average UV index in September
Geneva, 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 and December (UV index 3).
Average cloud cover in September
Geneva, TX
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 54).
The month with the least cloud cover is October (Cloud cover 31).
Average visibility in September
Geneva, TX
- Average visibility in September: 5mi
The months with the highest visibility are June, August, October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, July, September and December (5mi).
