September weather forecast
Rodney, IA

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Rodney, Iowa, with an average temperature varying between 76.1°F (24.5°C) and 56.3°F (13.5°C).

Temperature

The transition to September results in a modest reduction in average high-temperature, moving from 82°F (27.8°C) in August to a still warm 76.1°F (24.5°C). In the month of September, the nighttime temperature dips to a steady average of 56.3°F (13.5°C).

Humidity

The average relative humidity in September is 71%.

Rainfall

In Rodney, in September, it is raining for 11.3 days, with typically 2.05" (52mm) of accumulated precipitation. In Rodney, during the entire year, the rain falls for 117.6 days and collects up to 21.89" (556mm) of precipitation.

Snowfall

In Rodney, snow does not fall in May through September.

Daylight

The average length of the day in September is 12h and 28min.
On the first day of September, sunrise is at 6:50 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:06 pm CDT.

Sunshine

In Rodney, the average sunshine in September is 8.9h.

UV index

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: A maximum daily UV index of 4 during September morphs into the following directions:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Avoiding the Sun during its peak radiation time around midday is a healthy practice. Boost your sun resistance with garments that are densely woven yet spacious.
Updated: Aug 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Rodney in September?

In Rodney, 76.1°F (24.5°C) is the average high-temperature and 56.3°F (13.5°C) is the average low-temperature during September. The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in August is computed to be 87.8°F (31°C).

What is the average humidity in September?

The average relative humidity in September is 71%.

How much does it rain in September?

In September, the rain falls for 11.3 days. Throughout September, 2.05" (52mm) of precipitation is accumulated.

When it does not snow?

May through September are months without snowfall.

Does it snow in Rodney in September?

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

How many hours of daylight does Rodney have in September?

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

When are sunrise and sunset in September?

On the first day of September, sunrise is at 6:50 am and sunset at 7:57 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:06 pm CDT.

How many hours of sunshine does Rodney have in September?

The average sunshine duration in September is 8.9h.

What is the UV index reading in September?

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health risk from unsafe exposure to Sun's UV rays.
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
Rodney, IA

Average temperature in September - Rodney, IA
  • Average high temperature in September: 76.1°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in September: 56.3°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).

Average pressure in September
Rodney, IA

Average pressure in September - Rodney, IA
  • Average pressure in September: 29.99"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in September
Rodney, IA

Average wind speed in September - Rodney, IA
  • Average wind speed in September: 8.8mph

The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).

Average humidity in September
Rodney, IA

Average humidity in September - Rodney, IA
  • Average humidity in September: 71%

The month with the highest relative humidity is January (82%).
The months with the lowest relative humidity are April and October (66%).

Average rainfall in September
Rodney, IA

Average rainfall in September - Rodney, IA
  • Average rainfall in September: 2.05"

The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is January (0.67").

Average rainfall days in September
Rodney, IA

Average rainfall days in September - Rodney, IA
  • Average rainfall days in September: 11.3 days

The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is February (2.7 days).

Average snowfall in September
Rodney, IA

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

The month with the highest snowfall is February (3.03").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in September
Rodney, IA

Average snowfall days in September - Rodney, 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 June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Rodney, IA

Average daylight in September / Average sunshine in September - Rodney, 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: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).

Average sunshine days in September
Rodney, IA

Average sunshine days in September - Rodney, IA
  • Average sunshine days in September: 16.4 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (12 days).

Average UV index in September
Rodney, IA

Average UV index in September - Rodney, IA
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February and December (UV index 1).

Average cloud cover in September
Rodney, IA

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

The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 26).

Average visibility in September
Rodney, IA

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

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

Rodney, Iowa, USA

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