September weather forecastJonesville, TX
September
Weather in September
The first month of the autumn, September, is still a tropical month in Jonesville, Texas, with an average temperature ranging between min 67.3°F (19.6°C) and max 88.3°F (31.3°C).Temperature
Jonesville observes a small decrease in the average high-temperature with the arrival of September, falling from August's tropical 94.8°F (34.9°C) to a still hot 88.3°F (31.3°C). An average low-temperature of 67.3°F (19.6°C) is noted during the nights in September.Heat index
In September, the heat index is appraised at a sweltering 100.4°F (38°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.It is noted that heat index values are ascertained for locations in the shade and with gentle breezes. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. When the air holds a significant amount of moisture, the efficiency of the evaporation process is decreased, preventing the body from cooling down efficiently, leading to the sensation of overheating. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
In Jonesville, Texas, the average relative humidity in September is 69%.Rainfall
In September, the rain falls for 12 days. Throughout September, 1.57" (40mm) of precipitation is accumulated. In Jonesville, during the entire year, the rain falls for 125.9 days and collects up to 21.06" (535mm) of precipitation.Snowfall
March through December are months without snowfall.Daylight
In Jonesville, the average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 6:51 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 7:02 pm CDT.
Sunshine
The average sunshine in September is 9.3h.UV index
The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 6 in September interprets into the following advice:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Jonesville, TX
- Average high temperature in September: 88.3°F
The warmest month (with the highest average high temperature) is August (94.8°F).
The month with the lowest average high temperature is January (54.1°F).
- Average low temperature in September: 67.3°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (38.8°F).
Average pressure in September
Jonesville, 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 (29.93"Hg).
Average wind speed in September
Jonesville, TX
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest months (with the lowest average wind speed) are August and September (5.2mph).
Average humidity in September
Jonesville, TX
- Average humidity in September: 69%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Jonesville, TX
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is April (2.32").
The driest month (with the least rainfall) is November (1.34").
Average rainfall days in September
Jonesville, TX
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is August (12.6 days).
The month with the least rainy days is November (7.8 days).
Average snowfall in September
Jonesville, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.43").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Jonesville, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 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
Jonesville, TX
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 9h and 18min
The months with the most sunshine are July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in September
Jonesville, TX
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is October (21.2 days).
The months with the least sunshine days are February and June (15.1 days).
Average UV index in September
Jonesville, TX
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Jonesville, TX
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Jonesville, TX
- Average visibility in September: 6mi
The months with the highest visibility are January, March, April, June, July, August, September, October and November (6mi).
The months with the lowest visibility are February, May and December (5mi).
