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
Audubon's September showcases an average high-temperature of a still moderately hot 74.7°F (23.7°C), hardly distinct from August's 79.9°F (26.6°C). During the nights in September, Audubon observes an average low-temperature of 55.9°F (13.3°C).Humidity
In September, the average relative humidity is 75%.Rainfall
In Audubon, in September, it is raining for 11.7 days, with typically 2.56" (65mm) of accumulated precipitation. In Audubon, during the entire year, the rain falls for 127.8 days and collects up to 24.88" (632mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 6:46 am and sunset at 7:52 pm. On the last day of September, sunrise is at 7:16 am and sunset at 7:02 pm CDT.
Sunshine
In Audubon, the average sunshine in September is 9.1h.UV index
In Audubon, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The daily maximum UV index of 4 in September interprets into the following advice:
Make use of precautions - Suggestions to resist sunburn are communicated. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Audubon?
What is the average humidity in September?
How much does it rain in September?
When it does not snow in Audubon?
Does it snow in September?
How many hours of daylight does Audubon have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September in Audubon?
Average temperature in September
Audubon, IA
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (27.5°F).
- Average low temperature in September: 55.9°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (14.2°F).
Average pressure in September
Audubon, IA
- Average pressure in September: 30"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in September
Audubon, IA
- Average wind speed in September: 8.5mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).
Average humidity in September
Audubon, IA
- Average humidity in September: 75%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (69%).
Average rainfall in September
Audubon, IA
- Average rainfall in September: 2.56"
The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in September
Audubon, IA
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is June (17.3 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in September
Audubon, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Audubon, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Audubon, 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 1min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in September
Audubon, IA
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in September
Audubon, 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, November and December (UV index 2).
Average cloud cover in September
Audubon, IA
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in September
Audubon, IA
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Audubon, Iowa, USA
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