September weather forecastMcGregor, TX
September
Weather in September
The first month of the autumn, September, is still a tropical month in McGregor, Texas, with an average temperature ranging between min 70.7°F (21.5°C) and max 88.5°F (31.4°C).Temperature
September brings a minor shift in the average high-temperature, adjusting from a very hot 96.3°F (35.7°C) in August to a hot 88.5°F (31.4°C). McGregor reports a consistent average low-temperature of 70.7°F (21.5°C) throughout September nights.Heat index
During September, the heat index is computed to be a torrid 98.6°F (37°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. 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. 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 highly critical for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. 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. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.
Humidity
In September, the average relative humidity is 64%.Rainfall
In September, the rain falls for 12.3 days. Throughout September, 1.18" (30mm) of precipitation is accumulated. In McGregor, during the entire year, the rain falls for 113.2 days and collects up to 15.55" (395mm) of precipitation.Snowfall
April through December are months without snowfall.Daylight
The average length of the day in September is 12h and 21min.On the first day of the month, sunrise is at 7:05 am and sunset at 7:52 pm. On the last day of September, sunrise is at 7:23 am and sunset at 7:15 pm CDT.
Sunshine
In September, the average sunshine in McGregor is 8.5h.UV index
In McGregor, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 6 in September leads to these guidelines:
Fend off overexposure. Sun protection is vital. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
McGregor, TX
- Average high temperature in September: 88.5°F
The warmest month (with the highest average high temperature) is August (96.3°F).
The month with the lowest average high temperature is January (56.8°F).
- Average low temperature in September: 70.7°F
The month with the highest average low temperature is August (76.3°F).
The coldest month (with the lowest average low temperature) is January (40.6°F).
Average pressure in September
McGregor, TX
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
McGregor, TX
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is March (10.7mph).
The calmest month (with the lowest average wind speed) is September (7.1mph).
Average humidity in September
McGregor, TX
- Average humidity in September: 64%
The month with the highest relative humidity is May (75%).
The month with the lowest relative humidity is August (56%).
Average rainfall in September
McGregor, TX
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is May (2.28").
The driest month (with the least rainfall) is November (0.75").
Average rainfall days in September
McGregor, TX
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is September (12.3 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in September
McGregor, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.24").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
McGregor, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.7 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
McGregor, 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: 8h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
McGregor, TX
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is May (14.4 days).
Average UV index in September
McGregor, TX
- Average UV index in September: 6
The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
McGregor, TX
- Average cloud cover in September: 30
The month with the most cloud cover is March (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 22).
Average visibility in September
McGregor, 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).
