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 commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a tropical 92.3°F (33.5°C) in August to a warm 83.8°F (28.8°C). The average temperature during September nights dips to an enjoyable 64.4°F (18°C).Heat index
September's average heat index is computed to be a tropical 86°F (30°C). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.It is essential to grasp that the heat index's numbers are for shade and light wind settings. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Juveniles are regularly less conscious of the need to recuperate and rehydrate. Thirst is a tardy symptom of dehydration - hydration, especially during lengthy physical activities, should be maintained.
Humidity
The average relative humidity in September is 55%.Rainfall
In Allison, in September, during 9.6 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. Throughout the year, there are 89.4 rainfall days, and 15.24" (387mm) of precipitation is accumulated.Snowfall
In Allison, snow does not fall in May through September.Daylight
In September, the average length of the day is 12h and 23min.On the first day of the month, sunrise is at 7:13 am and sunset at 8:07 pm. On the last day of September, sunrise is at 7:35 am and sunset at 7:25 pm CDT.
Sunshine
The average sunshine in September is 9.3h.UV index
The average daily maximum UV index in September in Allison, Texas, is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum UV index, 5 during September, leads to the following recommendations:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Frequently asked questions
How hot does it get in Allison in September?
What is the average humidity in September in Allison?
How many days does it rain in September in Allison?
When it does not snow in Allison?
Does it snow in Allison in September?
How many hours of daylight does Allison have in September?
What time are sunrise and sunset in September in Allison?
How long on average sun shines in September in Allison?
How high is the UV index in September in Allison?
Average temperature in September
Allison, TX
- Average high temperature in September: 83.8°F
The warmest month (with the highest average high temperature) is July (93.4°F).
The month with the lowest average high temperature is December (48.7°F).
- Average low temperature in September: 64.4°F
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (30.7°F).
Average pressure in September
Allison, TX
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in September
Allison, TX
- Average wind speed in September: 11.8mph
The windiest month (with the highest average wind speed) is April (14.3mph).
The calmest months (with the lowest average wind speed) are January and August (10.7mph).
Average humidity in September
Allison, TX
- Average humidity in September: 55%
The month with the highest relative humidity is December (57%).
The month with the lowest relative humidity is July (49%).
Average rainfall in September
Allison, TX
- Average rainfall in September: 1.26"
The wettest month (with the highest rainfall) is May (2.17").
The driest month (with the least rainfall) is February (0.39").
Average rainfall days in September
Allison, TX
- Average rainfall days in September: 9.6 days
The months with the highest number of rainy days are July and August (12.2 days).
The month with the least rainy days is January (2.1 days).
Average snowfall in September
Allison, TX
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.34").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Allison, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Allison, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 9h and 2min
The months with the most sunshine are June and July (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in September
Allison, TX
- Average sunshine days in September: 17.7 days
The month with the most sunshine days is January (27 days).
The month with the least sunshine days is August (13.8 days).
Average UV index in September
Allison, TX
- Average UV index in September: 5
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 2).
Average cloud cover in September
Allison, TX
- Average cloud cover in September: 21
The month with the most cloud cover is April (Cloud cover 27).
The months with the least cloud cover are June and August (Cloud cover 17).
Average visibility in September
Allison, 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).
Allison, Texas, USA
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