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
A mild drop in Imperial's average high-temperature is observed in September, transitioning from a fiery hot 95.2°F (35.1°C) in August to a tropical 86.9°F (30.5°C). The low-temperature averages to a pleasant 69.6°F (20.9°C) during the nights of September.Heat index
September's average heat index is estimated at a tropical 89.6°F (32°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.Note that heat index values are valued for light wind and location in the shade. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a single figure representing how weather conditions feel when combining temperature and humidity. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Humidity
The months with the highest humidity in Imperial are September and December, with an average relative humidity of 52%.Rainfall
In September, the rain falls for 10.9 days. Throughout September, 1.65" (42mm) of precipitation is accumulated. Throughout the year, there are 75.5 rainfall days, and 10.87" (276mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 7:27 am and sunset at 8:13 pm. On the last day of September, sunrise is at 7:44 am and sunset at 7:36 pm CDT.
Sunshine
In Imperial, the average sunshine in September is 9.1h.UV index
In Imperial, the average daily maximum UV index in September is 6. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The UV index of 6 in September translates into these instructions:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Frequently asked questions
Is it hot in Imperial during September?
What are the most humid months in Imperial?
What is the average humidity in September in Imperial?
How much does it rain in Imperial in September?
When it does not snow in Imperial?
What is the average length of the day in September in Imperial?
When are sunrise and sunset in September in Imperial?
How many hours of sunshine does Imperial have in September?
What is the UV index reading in September in Imperial?
Average temperature in September
Imperial, TX
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is June (95.4°F).
The month with the lowest average high temperature is January (58.1°F).
- Average low temperature in September: 69.6°F
The month with the highest average low temperature is August (75.9°F).
The coldest month (with the lowest average low temperature) is January (39°F).
Average pressure in September
Imperial, TX
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are May and June (29.85"Hg).
Average wind speed in September
Imperial, TX
- Average wind speed in September: 11.2mph
The windiest month (with the highest average wind speed) is June (14.2mph).
The calmest month (with the lowest average wind speed) is December (9.6mph).
Average humidity in September
Imperial, TX
- Average humidity in September: 52%
The months with the highest relative humidity are September and December (52%).
The month with the lowest relative humidity is April (37%).
Average rainfall in September
Imperial, TX
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is February (0.28").
Average rainfall days in September
Imperial, TX
- Average rainfall days in September: 10.9 days
The month with the highest number of rainy days is September (10.9 days).
The month with the least rainy days is January (3 days).
Average snowfall in September
Imperial, TX
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.71").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Imperial, TX
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (1.1 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
Imperial, TX
- Average daylight in September: 12h and 2min
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 12min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 36min).
The months with the least sunshine are November and December (Average sunshine: 6h and 54min).
Average sunshine days in September
Imperial, TX
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is January (27 days).
The month with the least sunshine days is September (16.7 days).
Average UV index in September
Imperial, 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
Imperial, TX
- Average cloud cover in September: 22
The month with the most cloud cover is September (Cloud cover 22).
The months with the least cloud cover are June and August (Cloud cover 13).
Average visibility in September
Imperial, 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).
Imperial, Texas, USA
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