September weather forecast
Coppock, IA

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Weather in September

September, the first month of the autumn in Coppock, is also a moderately hot month, with an average temperature ranging between min 56.3°F (13.5°C) and max 75.6°F (24.2°C).

Temperature

The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from 81.1°F (27.3°C) in August to a still moderately hot 75.6°F (24.2°C). Throughout September, the average low-temperature in Coppock records at a moderate 56.3°F (13.5°C).

Humidity

In September, the average relative humidity is 76%.

Rainfall

In Coppock, Iowa, in September, it is raining for 9.5 days, with typically 1.65" (42mm) of accumulated precipitation. Throughout the year, in Coppock, there are 123.7 rainfall days, and 18.94" (481mm) of precipitation is accumulated.

Snowfall

May through September are months without snowfall.

Daylight

In Coppock, the average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:34 am and sunset at 7:39 pm. On the last day of September, in Coppock, sunrise is at 7:03 am and sunset at 6:49 pm CDT.

Sunshine

In Coppock, Iowa, the average sunshine in September is 9.5h.

UV index

In September, the average daily maximum UV index in Coppock, Iowa, is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Stay sun-safe with clothing that is both closely woven and worn loosely.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Coppock in September?

The high-temperature in Coppock, Iowa, during September is 75.6°F (24.2°C) and the low-temperature is 56.3°F (13.5°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, is estimated at 86°F (30°C).

What is the average humidity in September in Coppock?

In September, the average relative humidity in Coppock, Iowa, is 76%.

How much does it rain in Coppock in September?

In September, in Coppock, Iowa, the rain falls for 9.5 days. Throughout September, 1.65" (42mm) of precipitation is accumulated.

When it does not snow in Coppock?

In Coppock, Iowa, snow does not fall in May through September.

Does it snow in Coppock in September?

In Coppock, Iowa, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Coppock?

The average day length in September in Coppock is 12h and 28min.

When is the sunrise / sunset in September in Coppock?

In September, on the first day of the month, sunrise is at 6:34 am and sunset at 7:39 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:49 pm CDT.

How long on average sun shines in September in Coppock?

The average sunshine duration in September in Coppock, Iowa, is 9.5h.

How high is the UV index in September in Coppock?

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Coppock, IA

Average temperature in September - Coppock, IA
  • Average high temperature in September: 75.6°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (28.8°F).

  • Average low temperature in September: 56.3°F

The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

Average pressure in September
Coppock, IA

Average pressure in September - Coppock, IA
  • Average pressure in September: 30.02"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

Average wind speed in September
Coppock, IA

Average wind speed in September - Coppock, IA
  • Average wind speed in September: 7.9mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).

Average humidity in September
Coppock, IA

Average humidity in September - Coppock, IA
  • Average humidity in September: 76%

The months with the highest relative humidity are January and July (83%).
The month with the lowest relative humidity is October (72%).

Average rainfall in September
Coppock, IA

Average rainfall in September - Coppock, IA
  • Average rainfall in September: 1.65"

The wettest month (with the highest rainfall) is May (2.91").
The driest month (with the least rainfall) is December (0.71").

Average rainfall days in September
Coppock, IA

Average rainfall days in September - Coppock, IA
  • Average rainfall days in September: 9.5 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (4.2 days).

Average snowfall in September
Coppock, IA

Average snowfall in September - Coppock, IA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (2.52").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Coppock, IA

Average snowfall days in September - Coppock, IA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (8.9 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
Coppock, IA

Average daylight in September / Average sunshine in September - Coppock, IA
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 9h and 3min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in September
Coppock, IA

Average sunshine days in September - Coppock, IA
  • Average sunshine days in September: 18.1 days

The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (10.9 days).

Average UV index in September
Coppock, IA

Average UV index in September - Coppock, 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 January (UV index 1).

Average cloud cover in September
Coppock, IA

Average cloud cover in September - Coppock, IA
  • Average cloud cover in September: 29

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 29).

Average visibility in September
Coppock, IA

Average visibility in September - Coppock, IA
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).

Coppock, Iowa, USA

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