October weather forecast
Portage, MI

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Weather in October

October brings the full bounty of fall to Portage, Michigan, with temperatures falling to average highs of 59.5°F (15.3°C) making it a particularly cooler month. The leaves turn color, and the changing landscape offers a vibrant spectacle, perfect for sightseeing and photography. Clammy air still lingers with humidity around 77%. The daylight hours dwindle, hence signifying the shorter days of the coming winter, yet it remains an attractive period to enjoy Portage's scenic fall.

Temperature

Portage's October weather comes with a decrease in average high-temperatures, moving from an agreeable 72.5°F (22.5°C) in September to a moderate 59.5°F (15.3°C). In Portage, October's nights observe an average temperature dip to a frosty 44.2°F (6.8°C).

Humidity

The months with the lowest humidity are April and October, with an average relative humidity of 77%.

Rainfall

In October, the rain falls for 15.9 days. Throughout October, 3.15" (80mm) of precipitation is accumulated. Throughout the year, there are 158.4 rainfall days, and 29.88" (759mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Portage. October is the first month it typically snows. Throughout October, in the average 0.5 snowfall days, it receives 0.24" (6mm) of snow. In Portage, during the entire year, snow falls for 62.4 days and aggregates up to 20.24" (514mm) of snow.

Daylight

The average length of the day in October is 11h and 3min.
On the first day of the month, sunrise is at 7:40 am and sunset at 7:23 pm. On the last day of October, sunrise is at 8:15 am and sunset at 6:36 pm EDT.

Sunshine

In October, the average sunshine is 5.7h.

UV index

The average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 2 during October translates into the following directions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Updated: Jul 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in October?

October temperatures vary between a high-temperature of 59.5°F (15.3°C) and a low-temperature of 44.2°F (6.8°C).

What is the least humid month?

April and October, with an average relative humidity of 77%, are the least humid months.

What is the average humidity in October?

The average relative humidity in October is 77%.

How many days does it rain in October?

In October, the rain falls for 15.9 days. Throughout October, 3.15" (80mm) of precipitation is accumulated.

When does it start snowing?

October is the first month it typically snows. Throughout October, in the average 0.5 snowfall days, it receives 0.24" (6mm) of snow.

How many hours of daylight does Portage have in October?

In October, the average day length is 11h and 3min.

What time are sunrise and sunset in October?

On the first day of October, sunrise is at 7:40 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 8:15 am and sunset at 6:36 pm EDT.

How long on average sun shines in October?

In October, the average sunshine duration in Portage is 5.7h.

What is the UV index intensity in October?

In Portage, Michigan, the average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's 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
Portage, MI

Average temperature in October - Portage, MI
  • Average high temperature in October: 59.5°F

The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (28.4°F).

  • Average low temperature in October: 44.2°F

The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average pressure in October
Portage, MI

Average pressure in October - Portage, MI
  • Average pressure in October: 30"Hg

The months with the highest atmospheric pressure are January, March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in October
Portage, MI

Average wind speed in October - Portage, MI
  • Average wind speed in October: 8.9mph

The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).

Average humidity in October
Portage, MI

Average humidity in October - Portage, MI
  • Average humidity in October: 77%

The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and October (77%).

Average rainfall in October
Portage, MI

Average rainfall in October - Portage, MI
  • Average rainfall in October: 3.15"

The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is November (1.73").

Average rainfall days in October
Portage, MI

Average rainfall days in October - Portage, MI
  • Average rainfall days in October: 15.9 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (5.2 days).

Average snowfall in October
Portage, MI

Average snowfall in October - Portage, MI
  • Average snowfall in October: 0.24"

The month with the highest snowfall is February (5.12").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
Portage, MI

Average snowfall days in October - Portage, MI
  • Average snowfall days in October: 0.5 days

The month with the highest number of snowfall days is January (16.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
Portage, MI

Average daylight in October / Average sunshine in October - Portage, MI
  • Average daylight in October: 11h and 1min

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 October: 5h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).

Average sunshine days in October
Portage, MI

Average sunshine days in October - Portage, MI
  • Average sunshine days in October: 12.5 days

The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is February (9.8 days).

Average UV index in October
Portage, MI

Average UV index in October - Portage, MI
  • Average UV index in October: 2

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

Average cloud cover in October
Portage, MI

Average cloud cover in October - Portage, MI
  • Average cloud cover in October: 47

The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in October
Portage, MI

Average visibility in October - Portage, MI
  • Average visibility in October: 6mi

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

Portage, Michigan, USA

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