October weather forecast
Portland, IN

Share

Weather in October

October, the same as September, is another refreshing autumn month in Portland, Indiana, with an average temperature varying between 46°F (7.8°C) and 61.7°F (16.5°C).

Temperature

The transition into October is accompanied by a temperature decrease, with the average high-temperature shifting from a moderately hot 73.8°F (23.2°C) in September to an enjoyable 61.7°F (16.5°C). An average temperature of 46°F (7.8°C) is recorded during the nights in October.

Humidity

The least humid month in Portland is October, with an average relative humidity of 74%.

Rainfall

In Portland, during October, the rain falls for 7.7 days and regularly aggregates up to 0.51" (13mm) of precipitation. Throughout the year, in Portland, there are 108.6 rainfall days, and 8.74" (222mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 0.4 snowfall days, it receives 0.08" (2mm) of snow. In Portland, during the entire year, snow falls for 32.7 days and aggregates up to 3.15" (80mm) of snow.

Daylight

In Portland, the average length of the day in October is 11h and 7min.
On the first day of October, sunrise is at 7:37 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 8:09 am and sunset at 6:37 pm EDT.

Sunshine

In Portland, the average sunshine in October is 6.2h.

UV index

The average daily maximum UV index in October in Portland is 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 2 in October interprets into the following recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Portland in October?

In Portland, 61.7°F (16.5°C) is the average high-temperature and 46°F (7.8°C) is the average low-temperature during October. In July, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, is estimated at 87.8°F (31°C).

What is the least humid month in Portland?

The least humid month in Portland, Indiana, is October, with an average relative humidity of 74%.

What is the average humidity in October in Portland?

The average relative humidity in October in Portland, Indiana, is 74%.

How many days does it rain in October in Portland?

In Portland, in October, during 7.7 rainfall days, 0.51" (13mm) of precipitation is typically accumulated.

When does it start snowing in Portland?

October is the first month it typically snows in Portland, Indiana. Throughout October, in the average 0.4 snowfall days, it receives 0.08" (2mm) of snow.

How many hours of daylight does Portland have in October?

In Portland, Indiana, the average day length in October is 11h and 7min.

What time are sunrise and sunset in October in Portland?

On the first day of October in Portland, Indiana, sunrise is at 7:37 am and sunset at 7:21 pm. On the last day of the month, sunrise is at 8:09 am and sunset at 6:37 pm EDT.

How long on average sun shines in October in Portland?

The average sunshine duration in October is 6.2h.

How high is the UV index in October in Portland?

In Portland, Indiana, the average daily maximum UV index in October is 2. A UV Index reading of 2, and below, represents a minimal hazard to health 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
Portland, IN

Average temperature in October - Portland, IN
  • Average high temperature in October: 61.7°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.6°F).

  • Average low temperature in October: 46°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).

Average pressure in October
Portland, IN

Average pressure in October - Portland, IN
  • Average pressure in October: 30.02"Hg

The months with the highest atmospheric pressure are January and November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in October
Portland, IN

Average wind speed in October - Portland, IN
  • Average wind speed in October: 8.9mph

The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

Average humidity in October
Portland, IN

Average humidity in October - Portland, IN
  • Average humidity in October: 74%

The months with the highest relative humidity are January, February and December (83%).
The month with the lowest relative humidity is October (74%).

Average rainfall in October
Portland, IN

Average rainfall in October - Portland, IN
  • Average rainfall in October: 0.51"

The wettest month (with the highest rainfall) is May (1.1").
The driest month (with the least rainfall) is February (0.47").

Average rainfall days in October
Portland, IN

Average rainfall days in October - Portland, IN
  • Average rainfall days in October: 7.7 days

The month with the highest number of rainy days is May (13.9 days).
The months with the least rainy days are January and February (4.8 days).

Average snowfall in October
Portland, IN

Average snowfall in October - Portland, IN
  • Average snowfall in October: 0.08"

The month with the highest snowfall is February (0.75").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in October
Portland, IN

Average snowfall days in October - Portland, IN
  • Average snowfall days in October: 0.4 days

The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
Portland, IN

Average daylight in October / Average sunshine in October - Portland, IN
  • Average daylight in October: 11h and 1min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in October: 6h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).

Average sunshine days in October
Portland, IN

Average sunshine days in October - Portland, IN
  • Average sunshine days in October: 19.7 days

The months with the most sunshine days are October and November (19.7 days).
The month with the least sunshine days is June (13.3 days).

Average UV index in October
Portland, IN

Average UV index in October - Portland, IN
  • 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 December (UV index 1).

Average cloud cover in October
Portland, IN

Average cloud cover in October - Portland, IN
  • Average cloud cover in October: 40

The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 33).

Average visibility in October
Portland, IN

Average visibility in October - Portland, IN
  • Average visibility in October: 6mi

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

Portland, Indiana, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location