2024 Compare Climate & Weather:
Decorah, IA vs Portland, OR
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Highlights
On average, there are 144 sunny days per year in Portland. Decorah averages 192 sunny days per year. The US average is 205 sunny days.
Portland, Oregon gets 42.8 inches of rain, on average, per year. Decorah, Iowa gets 35.6 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.
Portland averages 2.6 inches of snow per year. Decorah averages 39.5 inches of snow per year. The US average is 27.8 inches of snow per year.
Weather Highlights
Portland, Oregon
Summer High: the July high is around 80.5 degrees
Winter Low: the January low is 36.4
Rain: averages 42.8 inches of rain a year
Snow: averages 2.6 inches of snow a year
Decorah, Iowa
Summer High: the July high is around 82.8 degrees
Winter Low: the January low is 7.8
Rain: averages 35.6 inches of rain a year
Snow: averages 39.5 inches of snow a year
BESTPLACES COMFORT INDEX
PortlandThe annual BestPlaces Comfort Index for Portland is 7.5 (10=best), which means it is more comfortable than most places in Oregon.
7.5 / 10
August, July and September are the most pleasant months in Portland, while December and January are the least comfortable months.
DecorahThe annual BestPlaces Comfort Index for Decorah is 6.7 (10=best), which means it is less comfortable than most places in Iowa.
6.7 / 10
June, August and September are the most pleasant months in Decorah, while January and December are the least comfortable months.
Today's Weather - Decorah, IA
6 PM PST
Clear
67°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Tonight | Clear | 52° / 75° | W 5 to 12 mph |
| Friday Night | Mostly Cloudy then Chance Showers And Thunderstorms | 56° / 72° | SW 2 to 9 mph |
| Saturday Night | Mostly Clear | 52° / 73° | NW 2 to 8 mph |
| Sunday Night | Mostly Clear | 50° / 73° | N 2 to 10 mph |
| Monday Night | Partly Cloudy then Slight Chance Rain Showers | 52° / 74° | SE 3 mph |
| Tuesday Night | Chance Showers And Thunderstorms | 58° / 82° | S 3 to 7 mph |
| Wednesday Night | Mostly Clear then Slight Chance Showers And Thunderstorms | 60° / 86° | SW 2 to 7 mph |
Today's Weather - Portland, OR
6 PM PST
Mostly Clear
79°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Tonight | Mostly Clear | 55° / 88° | NNW 2 to 9 mph |
| Friday Night | Mostly Clear | 58° / 83° | NNW 1 to 8 mph |
| Saturday Night | Mostly Cloudy | 56° / 79° | NW 2 to 9 mph |
| Sunday Night | Mostly Clear | 51° / 79° | NNW 2 to 8 mph |
| Monday Night | Mostly Clear | 53° / 79° | NNW 2 to 7 mph |
| Tuesday Night | Mostly Clear | 52° / 75° | NNW 2 to 10 mph |
| Wednesday Night | Mostly Clear | 49° / 71° | NW 2 to 10 mph |
Average Monthly High / Low (°F)
| Month | Decorah, IA | Portland, OR |
|---|
| January | 26° / 8° | 48° / 36° |
| February | 31° / 12° | 52° / 37° |
| March | 44° / 24° | 57° / 40° |
| April | 59° / 36° | 62° / 43° |
| May | 70° / 47° | 68° / 48° |
| June | 79° / 57° | 74° / 52° |
| July | 83° / 61° | 81° / 56° |
| August | 81° / 59° | 81° / 56° |
| September | 74° / 50° | 76° / 52° |
| October | 61° / 38° | 64° / 46° |
| November | 45° / 26° | 53° / 40° |
| December | 30° / 13° | 46° / 36° |
Hot, Freezing, Rainy, Snowy Days: Decorah / Portland
| Month | Hot Days | Freezing Days | Rainy Days | Snowy Days |
|---|
| January | 0 / 0 | 31 / 7 | 7 / 19 | 6 / 1 |
| February | 0 / 0 | 27 / 6 | 6 / 15 | 5 / 0 |
| March | 0 / 0 | 24 / 3 | 8 / 18 | 3 / 0 |
| April | 0 / 0 | 11 / 1 | 10 / 16 | 1 / 0 |
| May | 0 / 1 | 2 / 0 | 12 / 13 | 0 / 0 |
| June | 2 / 1 | 0 / 0 | 11 / 9 | 0 / 0 |
| July | 3 / 4 | 0 / 0 | 10 / 4 | 0 / 0 |
| August | 2 / 4 | 0 / 0 | 10 / 4 | 0 / 0 |
| September | 1 / 1 | 1 / 0 | 9 / 7 | 0 / 0 |
| October | 0 / 0 | 9 / 1 | 9 / 13 | 0 / 0 |
| November | 0 / 0 | 22 / 3 | 8 / 19 | 2 / 0 |
| December | 0 / 0 | 29 / 9 | 7 / 19 | 6 / 1 |
July is the hottest month for Decorah with an average high temperature of 82.8°, which ranks it as cooler than most places in Iowa. In Decorah, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Decorah are June, August and September.
August is the hottest month for Portland with an average high temperature of 81.1°, which ranks it as cooler than most places in Oregon. In Portland, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Portland are September, July and August.
January has the coldest nighttime temperatures for Decorah with an average of 7.8°. This is colder than most places in Iowa.
December has the coldest nighttime temperatures for Portland with an average of 35.6°. This is warmer than most places in Oregon.
In Decorah, there are 8.3 days annually when the high temperature is over 90°, which is cooler than most places in Iowa.
In Portland, there are 11.6 days annually when the high temperature is over 90°, which is cooler than most places in Oregon.
In Decorah, there are 154.5 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Iowa.
In Portland, there are 29.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Oregon.
In Decorah, there are 23.8 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Iowa.
In Portland, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Oregon.
June is the wettest month in Decorah with 5.1 inches of rain, and the driest month is January with 0.9 inches. The wettest season is Autumn with 40% of yearly precipitation and 9% occurs in Spring, which is the driest season. The annual rainfall of 35.6 inches in Decorah means that it is about average compared to other places in Iowa.
December is the wettest month in Portland with 6.8 inches of rain, and the driest month is July with 0.7 inches. The wettest season is Spring with 41% of yearly precipitation and 7% occurs in Autumn, which is the driest season. The annual rainfall of 42.8 inches in Portland means that it is about average compared to other places in Oregon.
May is the rainiest month in Decorah with 12.1 days of rain, and February is the driest month with only 5.7 rainy days. There are 106.2 rainy days annually in Decorah, which is rainier than most places in Iowa. The rainiest season is Autumn when it rains 29% of the time and the driest is Spring with only a 19% chance of a rainy day.
November is the rainiest month in Portland with 19.3 days of rain, and August is the driest month with only 3.7 rainy days. There are 155.9 rainy days annually in Portland, which is rainier than most places in Oregon. The rainiest season is Spring when it rains 34% of the time and the driest is Autumn with only a 11% chance of a rainy day.
An annual snowfall of 39.5 inches in Decorah means that it is one of the snowiest places in Iowa.
An annual snowfall of 2.6 inches in Portland means that it is less snowy than most places in Oregon.
December is the snowiest month in Decorah with 10.6 inches of snow, and 6 months of the year have significant snowfall.
December is the snowiest month in Portland with 0.9 inches of snow, and 3 months of the year have significant snowfall.
DID YOU KNOW?
Many people confuse Weather and Climate, but they are different. Weather refers to the conditions of the atmosphere over a short period of time, while Climate refers to the conditions of the atmosphere over a long period of time.
Weather, more specifically, refers to how the atmosphere behaves and its effects on life and human activities. Most people think of Weather in terms of what can be observed: temperature, humidity, precipitation, and cloudy/sunny conditions. Weather conditions constantly change on a minute-to-minute basis.
Climate is a record of the average weather conditions for a given place over a long period of time, often referred to as Climate Normals. A 30-year period of record is a common requirement to be considered a Climate Normal.
Reviews for Decorah 
2 Reviews
Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More
Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More
Start Your Review of Decorah
Reviews for Portland 2 Reviews
Hi. I'd like to know if you still feel the same way about living in Broomfield. I went there this past July to check it out (along with Lafayette, Boulder (can't More
Apex is perfect for what you are looking for. It's close enough to Raleigh, Durham, Chapel Hill to find a job and Cary the next town over, is a little more expensive but More
Start Your Review of Portland
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