October weather forecast
Diagonal, IA

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Weather in October

October, the same as September, is another refreshing autumn month in Diagonal, Iowa, with an average temperature fluctuating between 61.5°F (16.4°C) and 44.6°F (7°C).

Temperature

The start of October brings a distinct shift in the average high-temperature, dropping from September's warm 75.9°F (24.4°C) to a comfortable 61.5°F (16.4°C). During the month of October, Diagonal's nighttime temperature lowers to an average of 44.6°F (7°C).

Humidity

With an average relative humidity of 71%, October is the least humid month.

Rainfall

In Diagonal, in October, it is raining for 9.5 days, with typically 1.65" (42mm) of accumulated precipitation. Throughout the year, there are 126.9 rainfall days, and 22.6" (574mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 0.8 snowfall days, it receives 0.47" (12mm) of snow. In Diagonal, during the entire year, snow falls for 28.7 days and aggregates up to 11.85" (301mm) of snow.

Daylight

In Diagonal, the average length of the day in October is 11h and 6min.
On the first day of the month, sunrise is at 7:14 am and sunset at 6:58 pm. On the last day of October, in Diagonal, sunrise is at 7:47 am and sunset at 6:14 pm CDT.

Sunshine

The average sunshine in October is 5.8h.

UV index

In October, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 2 in October translates into these instructions:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Jul 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Diagonal in October?

In October, in Diagonal, the average high-temperature is 61.5°F (16.4°C), and the average low-temperature is 44.6°F (7°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, in August is appraised at 87.8°F (31°C).

What is the least humid month?

With an average relative humidity of 71%, October is the least humid month in Diagonal.

What is the average humidity in October?

The average relative humidity in October is 71%.

How many days does it rain in October?

In Diagonal, in October, during 9.5 rainfall days, 1.65" (42mm) of precipitation is typically accumulated.

When does it start to snow?

October is the first month it typically snows. Throughout October, in the average 0.8 snowfall days, it receives 0.47" (12mm) of snow.

What is the average length of the day in October?

In October, the average day length is 11h and 6min.

What time are sunrise and sunset in October?

On the first day of October, sunrise is at 7:14 am and sunset at 6:58 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 6:14 pm CDT.

How many hours of sunshine does Diagonal have in October?

In October, the average sunshine duration is 5.8h.

What is the UV index reading in October?

In Diagonal, Iowa, the average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from 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
Diagonal, IA

Average temperature in October - Diagonal, IA
  • Average high temperature in October: 61.5°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (30.6°F).

  • Average low temperature in October: 44.6°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

Average pressure in October
Diagonal, IA

Average pressure in October - Diagonal, IA
  • Average pressure in October: 30.01"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in October
Diagonal, IA

Average wind speed in October - Diagonal, IA
  • Average wind speed in October: 9.3mph

The windiest months (with the highest average wind speed) are January, February and March (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).

Average humidity in October
Diagonal, IA

Average humidity in October - Diagonal, IA
  • Average humidity in October: 71%

The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is October (71%).

Average rainfall in October
Diagonal, IA

Average rainfall in October - Diagonal, IA
  • Average rainfall in October: 1.65"

The wettest month (with the highest rainfall) is June (3.86").
The driest months (with the least rainfall) are February and December (0.71").

Average rainfall days in October
Diagonal, IA

Average rainfall days in October - Diagonal, IA
  • Average rainfall days in October: 9.5 days

The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (4.1 days).

Average snowfall in October
Diagonal, IA

Average snowfall in October - Diagonal, IA
  • Average snowfall in October: 0.47"

The month with the highest snowfall is January (3.54").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
Diagonal, IA

Average snowfall days in October - Diagonal, IA
  • Average snowfall days in October: 0.8 days

The month with the highest number of snowfall days is January (8.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in October / Average sunshine in October - Diagonal, IA
  • Average daylight in October: 11h and 1min

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 18min).

  • Average sunshine in October: 5h and 5min

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 36min).

Average sunshine days in October
Diagonal, IA

Average sunshine days in October - Diagonal, IA
  • Average sunshine days in October: 19.2 days

The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is May (10.6 days).

Average UV index in October
Diagonal, IA

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

The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).

Average cloud cover in October
Diagonal, IA

Average cloud cover in October - Diagonal, IA
  • Average cloud cover in October: 35

The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in October
Diagonal, IA

Average visibility in October - Diagonal, IA
  • Average visibility in October: 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).

Diagonal, Iowa, USA

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