October weather forecast
Sumner, IA

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Weather in October

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

Temperature

The transition into October is accompanied by a temperature decrease, with the average high-temperature shifting from a pleasant 71.8°F (22.1°C) in September to a refreshing 57.7°F (14.3°C). Throughout the month of October, Sumner witnesses an average low-temperature of 42.4°F (5.8°C).

Humidity

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

Rainfall

In Sumner, during October, the rain falls for 11.4 days and regularly aggregates up to 2.72" (69mm) of precipitation. In Sumner, Iowa, during the entire year, the rain falls for 146.8 days and collects up to 30.79" (782mm) of precipitation.

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

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

Sunshine

The average sunshine in October is 5.3h.

UV index

The average daily maximum UV index in October is 2. A UV Index reading of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In October, a daily maximum UV index of 2 leads to the following instructions:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.

Frequently asked questions

What is the average October temperature?

Sumner in October has an average high-temperature of 57.7°F (14.3°C) and an average low-temperature of 42.4°F (5.8°C).

What is the least humid month?

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

What is the average humidity in October?

In October, the average relative humidity is 73%.

How many days does it rain in October?

In Sumner, Iowa, in October, during 11.4 rainfall days, 2.72" (69mm) of precipitation is typically accumulated.

When does it start snowing?

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

What is the average length of the day in October in Sumner?

In Sumner, the average day length in October is 11h and 2min.

When are sunrise and sunset in October?

In October, on the first day of the month, 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?

The average sunshine duration in October is 5.3h.

What is the UV index intensity in October?

The average daily maximum UV index in October in Sumner is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to Sun's UV rays.
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).

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).

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).

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%).

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").

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).

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").

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).

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).

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).

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).

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).

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).

Sumner, Iowa, USA

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