October weather forecast
Armstrong, IA

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Weather in October

October, the same as September, in Armstrong, Iowa, is another refreshing autumn month, with an average temperature varying between 42.3°F (5.7°C) and 57°F (13.9°C).

Temperature

October signals a significant shift in the average high-temperature, falling from September's pleasant 72.7°F (22.6°C) to a mild 57°F (13.9°C). Nightly temperatures drop to an average low of 42.3°F (5.7°C) in October.

Humidity

The least humid month is October, with an average relative humidity of 68%.

Rainfall

In Armstrong, during October, the rain falls for 10.7 days and regularly aggregates up to 1.81" (46mm) of precipitation. Throughout the year, there are 123.7 rainfall days, and 23.66" (601mm) 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 1.8 snowfall days, it receives 0.51" (13mm) of snow. Throughout the year, in Armstrong, there are 48.8 snowfall days, and 19.76" (502mm) of snow is accumulated.

Daylight

The average length of the day in October is 11h and 1min.
On the first day of the month, sunrise is at 7:16 am and sunset at 6:58 pm. On the last day of October, sunrise is at 7:52 am and sunset at 6:10 pm CDT.

Sunshine

The average sunshine in October is 5.6h.

UV index

In October, the average daily maximum UV index is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: In October, the maximum UV index of 3 translates into these guidelines:
Take necessary precautions - Protection from skin and eye injury is mandatory. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Updated: Jul 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average October temperature?

In October, the average high-temperature and low-temperature are 57°F (13.9°C) and 42.3°F (5.7°C) respectively.

What is the least humid month?

With an average relative humidity of 68%, October is the least humid month.

What is the average humidity in October?

The average relative humidity in October is 68%.

How many days does it rain in October?

In Armstrong, during October, the rain falls for 10.7 days and regularly aggregates up to 1.81" (46mm) of precipitation.

When does it start snowing?

October is the first month it typically snows. Throughout October, in the average 1.8 snowfall days, it receives 0.51" (13mm) of snow.

What is the average length of the day in October?

In October, the average day length is 11h and 1min.

When is the sunrise / sunset in October?

On the first day of October, sunrise is at 7:16 am and sunset at 6:58 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 6:10 pm CDT.

How long on average sun shines in October?

In October, the average sunshine duration is 5.6h.

What is the UV index intensity in October?

The average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate health threat 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
Armstrong, IA

Average temperature in October - Armstrong, IA
  • Average high temperature in October: 57°F

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.5°F).

  • Average low temperature in October: 42.3°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 (9.9°F).

Average pressure in October
Armstrong, IA

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

The months with the highest atmospheric pressure are January and February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).

Average wind speed in October
Armstrong, IA

Average wind speed in October - Armstrong, IA
  • Average wind speed in October: 10.4mph

The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.6mph).

Average humidity in October
Armstrong, IA

Average humidity in October - Armstrong, IA
  • Average humidity in October: 68%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (68%).

Average rainfall in October
Armstrong, IA

Average rainfall in October - Armstrong, IA
  • Average rainfall in October: 1.81"

The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is January (0.87").

Average rainfall days in October
Armstrong, IA

Average rainfall days in October - Armstrong, IA
  • Average rainfall days in October: 10.7 days

The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is February (2.3 days).

Average snowfall in October
Armstrong, IA

Average snowfall in October - Armstrong, IA
  • Average snowfall in October: 0.51"

The month with the highest snowfall is February (4.8").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
Armstrong, IA

Average snowfall days in October - Armstrong, IA
  • Average snowfall days in October: 1.8 days

The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).

  • Average sunshine in October: 5h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

Average sunshine days in October
Armstrong, IA

Average sunshine days in October - Armstrong, IA
  • Average sunshine days in October: 17.4 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is June (10.1 days).

Average UV index in October
Armstrong, IA

Average UV index in October - Armstrong, IA
  • Average UV index in October: 3

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and February (UV index 1).

Average cloud cover in October
Armstrong, IA

Average cloud cover in October - Armstrong, IA
  • Average cloud cover in October: 37

The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July and September (Cloud cover 31).

Average visibility in October
Armstrong, IA

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

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

Armstrong, Iowa, USA

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