September weather forecast
Keota, IA

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Weather in September

September, the first month of the autumn in Keota, is still a warm month, with temperature in the range of an average high of 75.2°F (24°C) and an average low of 56.3°F (13.5°C).

Temperature

As August transitions into September, Keota sees a gentle drop in the average high-temperature, transitioning from a moderately hot 81.1°F (27.3°C) to a still warm 75.2°F (24°C). During September, Keota's temperature averages to a moderate 56.3°F (13.5°C) at night.

Humidity

In September, the average relative humidity is 76%.

Rainfall

In Keota, in September, it is raining for 12.1 days, with typically 2.76" (70mm) of accumulated precipitation. Throughout the year, there are 137.9 rainfall days, and 27.76" (705mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall in Keota.

Daylight

In Keota, the average length of the day in September is 12h and 28min.
On the first day of September, sunrise is at 6:34 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:50 pm CDT.

Sunshine

In Keota, the average sunshine in September is 9.4h.

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.
Note: A daily high UV index of 4 in September leads to these guidelines:
Take precautions. Light skin individuals may get burned in less than 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Updated: Aug 16, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature?

The average high-temperature, in September, in Keota, is 75.2°F (24°C), while the average low-temperature is 56.3°F (13.5°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which combines relative humidity and air temperature, in August is evaluated at 86°F (30°C).

What is the average humidity in September?

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

How many days does it rain in September?

In September, the rain falls for 12.1 days. Throughout September, 2.76" (70mm) of precipitation is accumulated.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

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

What is the average length of the day in September?

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

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:34 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:04 am and sunset at 6:50 pm CDT.

How many hours of sunshine does Keota have in September?

In Keota, the average sunshine duration in September is 9.4h.

What is the UV index intensity in September?

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate vulnerability from 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
Keota, IA

Average temperature in September - Keota, IA
  • Average high temperature in September: 75.2°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (28.6°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 (15.6°F).

Average pressure in September
Keota, IA

Average pressure in September - Keota, 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
Keota, IA

Average wind speed in September - Keota, IA
  • Average wind speed in September: 8mph

The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

Average humidity in September
Keota, IA

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

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

Average rainfall in September
Keota, IA

Average rainfall in September - Keota, IA
  • Average rainfall in September: 2.76"

The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is February (0.98").

Average rainfall days in September
Keota, IA

Average rainfall days in September - Keota, IA
  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (4.9 days).

Average snowfall in September
Keota, IA

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

The month with the highest snowfall is January (4.06").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Keota, IA

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

The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Keota, 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 12min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).

Average sunshine days in September
Keota, IA

Average sunshine days in September - Keota, IA
  • Average sunshine days in September: 15.9 days

The month with the most sunshine days is December (19.1 days).
The month with the least sunshine days is June (10.3 days).

Average UV index in September
Keota, IA

Average UV index in September - Keota, 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
Keota, IA

Average cloud cover in September - Keota, 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
Keota, IA

Average visibility in September - Keota, 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).

Keota, Iowa, USA

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