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
In September, the average high-temperature marginally drops from a very hot 95.2°F (35.1°C) in August to a tropical 87.1°F (30.6°C). During the month of September, an average low-temperature of 69.6°F (20.9°C) is recorded.Heat index
September's average heat index is appraised at a hot 89.6°F (32°C). Staying active during long-term exposure might result in a state of exhaustion and cause heat cramps.Note that heat index values are valued for light wind and location in the shade. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
September, October and December, with an average relative humidity of 52%, are the most humid months.Rainfall
In Iraan, during September, the rain falls for 11 days and regularly aggregates up to 1.57" (40mm) of precipitation. Throughout the year, there are 78 rainfall days, and 10.59" (269mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 20min.On the first day of the month, sunrise is at 7:24 am and sunset at 8:10 pm. On the last day of September, sunrise is at 7:41 am and sunset at 7:33 pm CDT.
Sunshine
The average sunshine in September is 9.2h.UV index
In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 6 during September leads to these advisories:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the most humid month?
What is the average humidity in September in Iraan?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September in Iraan?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Iraan, TX
- Average high temperature in September: 87.1°F
The warmest month (with the highest average high temperature) is August (95.2°F).
The month with the lowest average high temperature is January (59.2°F).
- Average low temperature in September: 69.6°F
The months with the highest average low temperature are July and August (75.6°F).
The coldest month (with the lowest average low temperature) is January (39.6°F).
Average pressure in September
Iraan, 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 (29.86"Hg).
Average wind speed in September
Iraan, TX
- Average wind speed in September: 11.5mph
The windiest month (with the highest average wind speed) is June (14.9mph).
The calmest month (with the lowest average wind speed) is December (9.5mph).
Average humidity in September
Iraan, TX
- Average humidity in September: 52%
The months with the highest relative humidity are September, October and December (52%).
The month with the lowest relative humidity is April (38%).
Average rainfall in September
Iraan, TX
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is May (1.89").
The driest month (with the least rainfall) is February (0.28").
Average rainfall days in September
Iraan, TX
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is September (11 days).
The month with the least rainy days is January (2.8 days).
Average snowfall in September
Iraan, TX
- Average snowfall in September: 0"
The month with the highest snowfall is December (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Iraan, TX
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (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
Iraan, TX
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 6min).
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 42min).
The months with the least sunshine are November and December (Average sunshine: 6h and 54min).
Average sunshine days in September
Iraan, TX
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is January (26.9 days).
The month with the least sunshine days is September (15.7 days).
Average UV index in September
Iraan, 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
Iraan, 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
Iraan, 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).
Iraan, Texas, USA
Weather forecast for your location
2. Allow the app to use your location