2025 Compare Climate & Weather:
Lake Oswego, OR vs Santa Rosa, CA

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Highlights

On average, there are 256 sunny days per year in Santa Rosa. Lake Oswego averages 141 sunny days per year. The US average is 205 sunny days.

Santa Rosa, California gets 38.2 inches of rain, on average, per year. Lake Oswego, Oregon gets 42 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Santa Rosa averages 0 inches of snow per year. Lake Oswego averages 1.5 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Santa Rosa, California
Summer High: the July high is around 83.8 degrees
Winter Low: the January low is 38
Rain: averages 38.2 inches of rain a year
Snow: averages 0 inches of snow a year

Lake Oswego, Oregon
Summer High: the July high is around 81.4 degrees
Winter Low: the January low is 36.6
Rain: averages 42 inches of rain a year
Snow: averages 1.5 inches of snow a year

BestPlaces Comfort Index
Santa Rosa

The annual BestPlaces Comfort Index for Santa Rosa is 8.3 (10=best), which means it is more comfortable than most places in California.

8.3 / 10
June, August and July are the most pleasant months in Santa Rosa, while December and January are the least comfortable months.

Lake Oswego

The annual BestPlaces Comfort Index for Lake Oswego is 7.6 (10=best), which means it is one of the most pleasant places in Oregon.

7.6 / 10
August, July and September are the most pleasant months in Lake Oswego, while December and January are the least comfortable months.

Today's Weather - Lake Oswego, OR

12 AM PST

Sunny

55°F

DAYDESCRIPTIONHIGH / LOWWIND
TodaySunny65° / 42°NNW 6 to 10 mph
MondaySunny75° / 48°N 2 to 7 mph
TuesdaySunny83° / 50°NNE 2 to 6 mph
WednesdayMostly Sunny72° / 45°WSW 2 to 9 mph
ThursdaySunny71° / 45°N 2 to 6 mph
FridaySunny77° / 48°NNW 2 to 6 mph
SaturdayMostly Sunny74° / 48°NNW 2 to 7 mph
Today's Weather - Santa Rosa, CA

12 AM PST

Sunny

70°F

DAYDESCRIPTIONHIGH / LOWWIND
This AfternoonSunny76° / 54°NNW 9 to 13 mph
MondaySunny83° / 55°N 6 to 12 mph
TuesdaySunny77° / 49°W 2 to 6 mph
WednesdayPatchy Fog then Sunny73° / 49°SW 1 to 6 mph
ThursdayPatchy Fog then Mostly Sunny78° / 50°WSW 1 to 6 mph
FridaySunny81° / 50°W 0 to 6 mph
SaturdaySunny79° / 50°W 1 to 7 mph
Average Monthly High / Low (°F)
MonthLake Oswego, ORSanta Rosa, CA
January49° / 37°58° / 38°
February53° / 37°62° / 40°
March58° / 40°66° / 42°
April63° / 43°70° / 43°
May69° / 47°75° / 47°
June75° / 52°81° / 50°
July81° / 56°84° / 52°
August82° / 56°84° / 52°
September77° / 52°84° / 50°
October64° / 46°77° / 46°
November53° / 40°66° / 42°
December47° / 36°58° / 38°
Hot, Freezing, Rainy, Snowy Days: Lake Oswego / Santa Rosa
MonthHot DaysFreezing DaysRainy DaysSnowy Days
January0 / 07 / 718 / 130 / 0
February0 / 06 / 315 / 120 / 0
March0 / 03 / 117 / 110 / 0
April0 / 01 / 015 / 70 / 0
May1 / 20 / 012 / 40 / 0
June2 / 50 / 08 / 10 / 0
July5 / 70 / 04 / 00 / 0
August5 / 70 / 03 / 00 / 0
September2 / 70 / 06 / 20 / 0
October0 / 30 / 012 / 40 / 0
November0 / 03 / 319 / 100 / 0
December0 / 09 / 818 / 120 / 0
August is the hottest month for Lake Oswego with an average high temperature of 82.0°, which ranks it as about average compared to other places in Oregon. In Lake Oswego, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Lake Oswego are September, June and July.

August is the hottest month for Santa Rosa with an average high temperature of 84.1°, which ranks it as cooler than most places in California. In Santa Rosa, there are 7 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Santa Rosa are October, May and June.
December has the coldest nighttime temperatures for Lake Oswego with an average of 35.6°. This is warmer than most places in Oregon.

December has the coldest nighttime temperatures for Santa Rosa with an average of 37.5°. This is about average compared to other places in California.

In Lake Oswego, there are 14.3 days annually when the high temperature is over 90°, which is about average compared to other places in Oregon.

In Santa Rosa, there are 31.5 days annually when the high temperature is over 90°, which is cooler than most places in California.

In Lake Oswego, there are 28.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Oregon.

In Santa Rosa, there are 22.4 days annually when the nighttime low temperature falls below freezing, which is colder than most places in California.

In Lake Oswego, 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 Santa Rosa, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in California.

December is the wettest month in Lake Oswego with 6.8 inches of rain, and the driest month is July with 0.7 inches. The wettest season is Spring with 42% of yearly precipitation and 7% occurs in Autumn, which is the driest season. The annual rainfall of 42.0 inches in Lake Oswego means that it is about average compared to other places in Oregon.


December is the wettest month in Santa Rosa with 7.4 inches of rain, and the driest month is July with 0.0 inches. The wettest season is Spring with 57% of yearly precipitation and 1% occurs in Autumn, which is the driest season. The annual rainfall of 38.2 inches in Santa Rosa means that it is wetter than most places in California.

November is the rainiest month in Lake Oswego with 18.7 days of rain, and August is the driest month with only 3.4 rainy days. There are 147.3 rainy days annually in Lake Oswego, which is about average compared to other places in Oregon. The rainiest season is Spring when it rains 35% of the time and the driest is Autumn with only a 11% chance of a rainy day.

January is the rainiest month in Santa Rosa with 12.8 days of rain, and July is the driest month with only 0.2 rainy days. There are 75.7 rainy days annually in Santa Rosa, which is rainier than most places in California. The rainiest season is Spring when it rains 49% of the time and the driest is Autumn with only a 2% chance of a rainy day.

An annual snowfall of 1.5 inches in Lake Oswego means that it is less snowy than most places in Oregon.

There is rarely any recorded snowfall in Santa Rosa, ranking it as one of the least snowy places in California.
December is the snowiest month in Lake Oswego with 0.5 inches of snow, and 2 months of the year have significant snowfall.

Any measurable snowfall is a rare occurance in Santa Rosa.

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 Lake Oswego    2 Reviews
Jill · Sherman Oaks, CA
re:
Over 16 years ago

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

   |    Reply
NC For Me · Apex, NC
re:
Over 16 years ago

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

   |    Reply

Start Your Review of Lake Oswego

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Reviews for Santa Rosa    2 Reviews
Jill · Sherman Oaks, CA
re:
Over 16 years ago

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

   |    Reply
NC For Me · Apex, NC
re:
Over 16 years ago

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

   |    Reply

Start Your Review of Santa Rosa

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Zips In Lake Oswego, Oregon
97035, 97034
Zips In SANTA ROSA, CALIFORNIA
95403, 95407, 95404, 95401, 95409, 95405
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