September weather forecast
Plato, IA

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Weather in September

The first month of the autumn, September, is still a warm month in Plato, Iowa, with temperature in the range of an average low of 55.4°F (13°C) and an average high of 75.2°F (24°C).

Temperature

The start of September sees the average high-temperature at a still moderately hot 75.2°F (24°C), showing little difference from August's 80.4°F (26.9°C). In Plato, the expected average low-temperature for September is a moderate 55.4°F (13°C).

Humidity

In Plato, the average relative humidity in September is 77%.

Rainfall

In Plato, during September, the rain falls for 12.2 days and regularly aggregates up to 2.44" (62mm) of precipitation. In Plato, during the entire year, the rain falls for 139.1 days and collects up to 29.57" (751mm) of precipitation.

Snowfall

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

Daylight

In Plato, the average length of the day in September is 12h and 28min.
On the first day of September, sunrise is at 6:31 am and sunset at 7:38 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:48 pm CDT.

Sunshine

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

UV index

In Plato, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: A maximum UV index of 4 in September translates into the following recommendations:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

What are the temperatures in Plato in September?

In Plato, 75.2°F (24°C) is the average high-temperature and 55.4°F (13°C) is the average low-temperature during September. In July, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 87.8°F (31°C).

What is the average humidity in September in Plato?

In Plato, the average relative humidity in September is 77%.

How much does it rain in Plato in September?

In Plato, in September, it is raining for 12.2 days, with typically 2.44" (62mm) of accumulated precipitation.

When it does not snow in Plato?

May through September are months without snowfall in Plato, Iowa.

Does it snow in Plato in September?

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

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

In September, the average day length in Plato is 12h and 28min.

When are sunrise and sunset in September in Plato?

In September, on the first day of the month, sunrise is at 6:31 am and sunset at 7:38 pm. On the last day of the month, in Plato, sunrise is at 7:01 am and sunset at 6:48 pm CDT.

How many hours of sunshine does Plato have in September?

The average sunshine duration in September is 9.4h.

What is the UV index intensity in September in Plato?

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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
Plato, IA

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

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in September: 55.4°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).

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Average pressure in September
Plato, IA

Average pressure in September - Plato, 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).

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Average wind speed in September
Plato, IA

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

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

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Average humidity in September
Plato, IA

Average humidity in September - Plato, IA
  • Average humidity in September: 77%

The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in September
Plato, IA

Average rainfall in September - Plato, IA
  • Average rainfall in September: 2.44"

The wettest month (with the highest rainfall) is May (4.61").
The driest month (with the least rainfall) is January (1.3").

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Average rainfall days in September
Plato, IA

Average rainfall days in September - Plato, IA
  • Average rainfall days in September: 12.2 days

The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is January (4.4 days).

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Average snowfall in September
Plato, IA

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

The month with the highest snowfall is January (5.24").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Plato, IA

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

The month with the highest number of snowfall days is January (9.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Plato, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days in September
Plato, IA

Average sunshine days in September - Plato, IA
  • Average sunshine days in September: 16.8 days

The month with the most sunshine days is November (19 days).
The month with the least sunshine days is June (9.2 days).

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Average UV index in September
Plato, IA

Average UV index in September - Plato, 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 and December (UV index 1).

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Average cloud cover in September
Plato, IA

Average cloud cover in September - Plato, IA
  • Average cloud cover in September: 30

The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in September
Plato, IA

Average visibility in September - Plato, 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).

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Plato, Iowa, USA

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