October weather forecast
Sumner, IA

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Weather in October

October, the same as September, in Sumner, Iowa, is another mild autumn month, with an average temperature ranging between min 42.4°F (5.8°C) and max 57.7°F (14.3°C).

Temperature

October comes with a decrease in the average high-temperature, falling from an agreeable 71.8°F (22.1°C) in September to a mild 57.7°F (14.3°C). Throughout October, Sumner anticipates an average low-temperature of 42.4°F (5.8°C).

Humidity

The least humid month is October, with an average relative humidity of 73%.

Rainfall

In October, the rain falls for 11.4 days. Throughout October, 2.72" (69mm) of precipitation is accumulated. Throughout the year, there are 146.8 rainfall days, and 30.79" (782mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. October is the first month it typically snows in Sumner. Throughout October, in the average 1.6 snowfall days, it receives 0.31" (8mm) of snow. In Sumner, Iowa, during the entire year, snow falls for 55.9 days and aggregates up to 23.46" (596mm) of snow.

Daylight

In Sumner, Iowa, the average length of the day in October is 11h and 2min.
On the first day of October in Sumner, sunrise is at 7:06 am and sunset at 6:49 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 6:01 pm CDT.

Sunshine

In Sumner, the average sunshine in October is 5.3h.

UV index

In Sumner, the average daily maximum UV index in October is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: In October, the maximum UV index of 2 translates into these guidelines:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
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Frequently asked questions

What is the average October temperature in Sumner?

The high-temperature in Sumner, Iowa, during October is 57.7°F (14.3°C) and the low-temperature is 42.4°F (5.8°C).

What is the least humid month in Sumner?

With an average relative humidity of 73%, October is the least humid month in Sumner, Iowa.

What is the average humidity in October in Sumner?

In October, the average relative humidity in Sumner is 73%.

How many days does it rain in October in Sumner?

In Sumner, Iowa, in October, it is raining for 11.4 days, with typically 2.72" (69mm) of accumulated precipitation.

When does it start to snow in Sumner?

October is the first month it typically snows. Throughout October, in the average 1.6 snowfall days, it receives 0.31" (8mm) of snow.

How many hours of daylight does Sumner have in October?

The average day length in October is 11h and 2min.

When are sunrise and sunset in October in Sumner?

On the first day of October in Sumner, sunrise is at 7:06 am and sunset at 6:49 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 6:01 pm CDT.

How long on average sun shines in October in Sumner?

In October, the average sunshine duration in Sumner, Iowa, is 5.3h.

How high is the UV index in October in Sumner?

In October, the average daily maximum UV index in Sumner, Iowa, is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Sumner, IA

Average temperature in October - Sumner, IA
  • Average high temperature in October: 57.7°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (23.5°F).

  • Average low temperature in October: 42.4°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (11.1°F).

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Average pressure in October
Sumner, IA

Average pressure in October - Sumner, IA
  • Average pressure in October: 29.99"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).

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Average wind speed in October
Sumner, IA

Average wind speed in October - Sumner, IA
  • Average wind speed in October: 9.9mph

The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).

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Average humidity in October
Sumner, IA

Average humidity in October - Sumner, IA
  • Average humidity in October: 73%

The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in October
Sumner, IA

Average rainfall in October - Sumner, IA
  • Average rainfall in October: 2.72"

The wettest month (with the highest rainfall) is June (5.04").
The driest month (with the least rainfall) is January (1.14").

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Average rainfall days in October
Sumner, IA

Average rainfall days in October - Sumner, IA
  • Average rainfall days in October: 11.4 days

The month with the highest number of rainy days is May (20.3 days).
The months with the least rainy days are January and February (4.3 days).

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Average snowfall in October
Sumner, IA

Average snowfall in October - Sumner, IA
  • Average snowfall in October: 0.31"

The month with the highest snowfall is February (5.83").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in October
Sumner, IA

Average snowfall days in October - Sumner, IA
  • Average snowfall days in October: 1.6 days

The month with the highest number of snowfall days is January (13.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in October /
Average sunshine in October
Sumner, IA

Average daylight in October / Average sunshine in October - Sumner, IA
  • Average daylight in October: 11h and 0min

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

  • Average sunshine in October: 5h and 2min

The months with the most sunshine are July and August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

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Average sunshine days in October
Sumner, IA

Average sunshine days in October - Sumner, IA
  • Average sunshine days in October: 16.6 days

The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is June (7.3 days).

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Average UV index in October
Sumner, IA

Average UV index in October - Sumner, IA
  • Average UV index in October: 2

The month with the highest UV index is June (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 October
Sumner, IA

Average cloud cover in October - Sumner, IA
  • Average cloud cover in October: 40

The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 32).

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Average visibility in October
Sumner, IA

Average visibility in October - Sumner, IA
  • Average visibility in October: 6mi

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

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Sumner, Iowa, USA

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