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
Ferguson records an average high-temperature of a still warm 74.5°F (23.6°C) in September, closely mirroring the climate of the previous month. Ferguson, during the month of September, experiences an average low-temperature of 55.2°F (12.9°C).Humidity
In Ferguson, Iowa, the average relative humidity in September is 77%.Rainfall
In September, the rain falls for 10.6 days. Throughout September, 1.5" (38mm) of precipitation is accumulated. Throughout the year, there are 118.2 rainfall days, and 16.18" (411mm) of precipitation is accumulated.Snowfall
In Ferguson, snow does not fall in June through September.Daylight
In Ferguson, Iowa, the average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 6:37 am and sunset at 7:44 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:54 pm CDT.
Sunshine
The average sunshine in September is 9.3h.UV index
In Ferguson, Iowa, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 4 during September leads to these instructions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Ferguson in September?
What is the average humidity in September in Ferguson?
How much does it rain in Ferguson in September?
When it does not snow in Ferguson?
Does it snow in Ferguson in September?
What is the average length of the day in September in Ferguson?
When are sunrise and sunset in September in Ferguson?
How many hours of sunshine does Ferguson have in September?
What is the UV index intensity in September in Ferguson?
Average temperature in September
Ferguson, IA
- Average high temperature in September: 74.5°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (25.7°F).
- Average low temperature in September: 55.2°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (12.7°F).
Average pressure in September
Ferguson, IA
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in September
Ferguson, IA
- Average wind speed in September: 8.3mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in September
Ferguson, IA
- Average humidity in September: 77%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Ferguson, IA
- Average rainfall in September: 1.5"
The wettest month (with the highest rainfall) is June (2.56").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in September
Ferguson, IA
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is June (15.7 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in September
Ferguson, IA
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.93").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Ferguson, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Ferguson, IA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 9h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Ferguson, IA
- Average sunshine days in September: 18 days
The month with the most sunshine days is December (20.6 days).
The month with the least sunshine days is June (12.2 days).
Average UV index in September
Ferguson, IA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in September
Ferguson, IA
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in September
Ferguson, IA
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Ferguson, Iowa, USA
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