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
September brings a slight decrease in temperature, down from a tropical 86.7°F (30.4°C) in August to a warm 80.2°F (26.8°C). Despite a significant daily temperature range, Ironton's temperature falls to a steady low-temperature average of 58.6°F (14.8°C) in September.Humidity
In Ironton, the average relative humidity in September is 75%.Rainfall
The month with the least rainfall is September, when the rain falls for 12.8 days and typically collects 1.61" (41mm) of precipitation.Snowfall
In Ironton, snow does not fall in April through October.Daylight
In September, the average length of the day in Ironton is 12h and 25min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:31 pm. On the last day of September, sunrise is at 6:57 am and sunset at 6:46 pm CDT.
Sunshine
The average sunshine in September is 9.3h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 5 during September translates into these guidelines:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. When the Sun is at its strongest around midday, find shade and limit exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Ironton?
What is the average humidity in September in Ironton?
What is the driest month in Ironton?
How many days does it rain in September in Ironton?
When it does not snow in Ironton?
What is the average length of the day in September in Ironton?
When is the sunrise / sunset in September in Ironton?
How long on average sun shines in September in Ironton?
What is the UV index intensity in September in Ironton?
Average temperature in September
Ironton, MO
- Average high temperature in September: 80.2°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in September: 58.6°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).
Average pressure in September
Ironton, MO
- Average pressure in September: 30.02"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
Ironton, MO
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Ironton, MO
- Average humidity in September: 75%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Ironton, MO
- Average rainfall in September: 1.61"
The wettest month (with the highest rainfall) is April (3.7").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in September
Ironton, MO
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in September
Ironton, MO
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.4").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Ironton, MO
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.2 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
Ironton, MO
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
Ironton, MO
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is July (12.1 days).
Average UV index in September
Ironton, MO
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Ironton, MO
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in September
Ironton, MO
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).
Ironton, Missouri, USA
Weather forecast for your location
2. Allow the app to use your location