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
Coon Rapids registers an average high-temperature of a still moderately hot 74.7°F (23.7°C) with the arrival of September, showing minor deviation from the preceding month. In September, the temperature drops to an average of 55.8°F (13.2°C) at night.Humidity
In September, the average relative humidity is 75%.Rainfall
In Coon Rapids, during September, the rain falls for 10.9 days and regularly aggregates up to 2.72" (69mm) of precipitation. In Coon Rapids, during the entire year, the rain falls for 130.1 days and collects up to 27.28" (693mm) of precipitation.Snowfall
In Coon Rapids, snow does not fall in June through September.Daylight
In Coon Rapids, the average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 6:45 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 7:01 pm CDT.
Sunshine
The average sunshine in September in Coon Rapids is 9.2h.UV index
In Coon Rapids, 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 unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Coon Rapids in September?
What is the average humidity in September in Coon Rapids?
How many days does it rain in September in Coon Rapids?
When it does not snow in Coon Rapids?
Does it snow in Coon Rapids in September?
What is the average length of the day in September in Coon Rapids?
When is the sunrise / sunset in September in Coon Rapids?
How many hours of sunshine does Coon Rapids have in September?
What is the UV index intensity in September in Coon Rapids?
Average temperature in September
Coon Rapids, IA
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (26.2°F).
- Average low temperature in September: 55.8°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 (13.6°F).
Average pressure in September
Coon Rapids, IA
- Average pressure in September: 30.01"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
Coon Rapids, IA
- Average wind speed in September: 8.5mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).
Average humidity in September
Coon Rapids, IA
- Average humidity in September: 75%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are April and October (69%).
Average rainfall in September
Coon Rapids, IA
- Average rainfall in September: 2.72"
The wettest month (with the highest rainfall) is May (4.29").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in September
Coon Rapids, IA
- Average rainfall days in September: 10.9 days
The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Coon Rapids, IA
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Coon Rapids, IA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Coon Rapids, 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 12min).
Average sunshine days in September
Coon Rapids, IA
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is June (10 days).
Average UV index in September
Coon Rapids, IA
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in September
Coon Rapids, IA
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in September
Coon Rapids, IA
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, September, October, November and December (6mi).
The months with the lowest visibility are January and August (5mi).
Coon Rapids, Iowa, USA
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