2024 Compare Climate & Weather:
Portland, OR vs St. Louis, MO
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Highlights
On average, there are 202 sunny days per year in St. Louis. Portland averages 144 sunny days per year. The US average is 205 sunny days.
St. Louis, Missouri gets 42.2 inches of rain, on average, per year. Portland, Oregon gets 42.8 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.
St. Louis averages 15.5 inches of snow per year. Portland averages 2.6 inches of snow per year. The US average is 27.8 inches of snow per year.
Weather Highlights
St. Louis, Missouri
Summer High: the July high is around 88.5 degrees
Winter Low: the January low is 22.8
Rain: averages 42.2 inches of rain a year
Snow: averages 15.5 inches of snow a year
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
BESTPLACES COMFORT INDEX
St. LouisThe annual BestPlaces Comfort Index for St. Louis is 7.2 (10=best), which means it is more comfortable than most places in Missouri.
7.2 / 10
September, May and October are the most pleasant months in St. Louis, while January and December are the least comfortable months.
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.
Today's Weather - Portland, OR
2 AM PST
Light Rain Likely
52°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Overnight | Light Rain Likely | 50° / 55° | S 12 mph |
| Thursday Night | Light Rain then Rain Showers | 49° / 57° | SSW 10 to 16 mph |
| Friday Night | Rain Showers Likely | 48° / 59° | SW 6 to 12 mph |
| Saturday Night | Light Rain Likely then Chance Rain Showers | 49° / 60° | SSW 13 mph |
| Sunday Night | Showers And Thunderstorms Likely | 44° / 57° | WSW 7 to 13 mph |
| Monday Night | Chance Rain Showers | 42° / 62° | SW 6 to 10 mph |
| Tuesday Night | Chance Rain Showers then Chance Light Rain | 43° / 63° | SW 6 to 12 mph |
Today's Weather - St. Louis, MO
2 AM PST
Mostly Clear
46°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| Overnight | Mostly Clear | 43° / 67° | E 7 mph |
| Thursday Night | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 52° / 72° | SE 8 to 13 mph |
| Friday Night | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 67° / 81° | S 17 to 23 mph |
| Saturday Night | Chance Showers And Thunderstorms | 69° / 80° | S 18 to 22 mph |
| Sunday Night | Chance Showers And Thunderstorms then Showers And Thunderstorms | 64° / 76° | S 17 to 22 mph |
| Monday Night | Chance Showers And Thunderstorms | 57° / 81° | W 6 to 13 mph |
| Tuesday Night | Slight Chance Showers And Thunderstorms | 60° / 86° | S 9 mph |
Average Monthly High / Low (°F)
| Month | Portland, OR | St. Louis, MO |
|---|
| January | 48° / 36° | 40° / 23° |
| February | 52° / 37° | 45° / 27° |
| March | 57° / 40° | 56° / 36° |
| April | 62° / 43° | 67° / 46° |
| May | 68° / 48° | 76° / 56° |
| June | 74° / 52° | 85° / 65° |
| July | 81° / 56° | 89° / 69° |
| August | 81° / 56° | 88° / 68° |
| September | 76° / 52° | 80° / 59° |
| October | 64° / 46° | 69° / 47° |
| November | 53° / 40° | 56° / 37° |
| December | 46° / 36° | 43° / 27° |
Hot, Freezing, Rainy, Snowy Days: Portland / St. Louis
| Month | Hot Days | Freezing Days | Rainy Days | Snowy Days |
|---|
| January | 0 / 0 | 7 / 25 | 19 / 8 | 1 / 3 |
| February | 0 / 0 | 6 / 20 | 15 / 7 | 0 / 2 |
| March | 0 / 0 | 3 / 12 | 18 / 10 | 0 / 1 |
| April | 0 / 0 | 1 / 2 | 16 / 11 | 0 / 0 |
| May | 1 / 1 | 0 / 0 | 13 / 11 | 0 / 0 |
| June | 1 / 7 | 0 / 0 | 9 / 9 | 0 / 0 |
| July | 4 / 13 | 0 / 0 | 4 / 8 | 0 / 0 |
| August | 4 / 11 | 0 / 0 | 4 / 8 | 0 / 0 |
| September | 1 / 3 | 0 / 0 | 7 / 7 | 0 / 0 |
| October | 0 / 0 | 1 / 2 | 13 / 8 | 0 / 0 |
| November | 0 / 0 | 3 / 10 | 19 / 9 | 0 / 1 |
| December | 0 / 0 | 9 / 22 | 19 / 9 | 1 / 3 |
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.
July is the hottest month for St. Louis with an average high temperature of 88.5°, which ranks it as about average compared to other places in Missouri. In St. Louis, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for St. Louis are May, September and June.
December has the coldest nighttime temperatures for Portland with an average of 35.6°. This is warmer than most places in Oregon.
January has the coldest nighttime temperatures for St. Louis with an average of 22.8°. This is warmer than most places in Missouri.
In Portland, there are 11.6 days annually when the high temperature is over 90°, which is cooler than most places in Oregon.
In St. Louis, there are 36.0 days annually when the high temperature is over 90°, which is hotter than most places in Missouri.
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 St. Louis, there are 91.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Missouri.
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.
In St. Louis, there are 1.5 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Missouri.
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 wettest month in St. Louis with 4.8 inches of rain, and the driest month is February with 2.3 inches. The wettest season is Summer with 29% of yearly precipitation and 18% occurs in Spring, which is the driest season. The annual rainfall of 42.2 inches in St. Louis means that it is drier than most places in Missouri.
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.
May is the rainiest month in St. Louis with 11.3 days of rain, and September is the driest month with only 7.0 rainy days. There are 105.3 rainy days annually in St. Louis, which is rainier than most places in Missouri. The rainiest season is Summer when it rains 30% of the time and the driest is Spring with only a 23% chance of a rainy day.
An annual snowfall of 2.6 inches in Portland means that it is less snowy than most places in Oregon.
An annual snowfall of 15.5 inches in St. Louis means that it is snowier than most places in Missouri.
December is the snowiest month in Portland with 0.9 inches of snow, and 3 months of the year have significant snowfall.
January is the snowiest month in St. Louis with 4.9 inches of snow, and 5 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 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
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Reviews for St. Louis 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 St. Louis
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