2025 Compare Climate & Weather:
Potomac, MD vs Stanwood, WA

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Highlights

On average, there are 164 sunny days per year in Stanwood. Potomac averages 201 sunny days per year. The US average is 205 sunny days.

Stanwood, Washington gets 36.5 inches of rain, on average, per year. Potomac, Maryland gets 42 inches of rain, on average, per year. The US average is 38.1 inches of rain per year.

Stanwood averages 4.8 inches of snow per year. Potomac averages 16.8 inches of snow per year. The US average is 27.8 inches of snow per year.

Weather Highlights

Stanwood, Washington
Summer High: the July high is around 73.5 degrees
Winter Low: the January low is 35.6
Rain: averages 36.5 inches of rain a year
Snow: averages 4.8 inches of snow a year

Potomac, Maryland
Summer High: the July high is around 85.7 degrees
Winter Low: the January low is 25.3
Rain: averages 42 inches of rain a year
Snow: averages 16.8 inches of snow a year

BestPlaces Comfort Index

Stanwood

The annual BestPlaces Comfort Index for Stanwood is 7.3 (10=best), which means it is more comfortable than most places in Washington.

7.3 / 10

August, July and September are the most pleasant months in Stanwood, while December and January are the least comfortable months.

Potomac

The annual BestPlaces Comfort Index for Potomac is 7.3 (10=best), which means it is more comfortable than most places in Maryland.

7.3 / 10

September, June and May are the most pleasant months in Potomac, while January and February are the least comfortable months.

Average Monthly High / Low (°F)

Month	Potomac, MD	Stanwood, WA
January	42° / 25°	47° / 36°
February	46° / 28°	50° / 35°
March	54° / 35°	54° / 38°
April	66° / 44°	59° / 41°
May	74° / 53°	64° / 46°
June	82° / 63°	69° / 50°
July	86° / 68°	74° / 53°
August	84° / 66°	75° / 53°
September	77° / 59°	69° / 48°
October	66° / 47°	60° / 43°
November	56° / 38°	51° / 39°
December	45° / 29°	46° / 34°

Hot, Freezing, Rainy, Snowy Days: Potomac / Stanwood

Month	Hot Days	Freezing Days	Rainy Days	Snowy Days
January	0 / 0	23 / 9	10 / 18	3 / 1
February	0 / 0	20 / 9	8 / 14	2 / 1
March	0 / 0	13 / 5	10 / 17	1 / 0
April	0 / 0	2 / 1	10 / 15	0 / 0
May	1 / 0	0 / 0	12 / 13	0 / 0
June	4 / 0	0 / 0	10 / 11	0 / 0
July	8 / 0	0 / 0	10 / 6	0 / 0
August	5 / 0	0 / 0	8 / 5	0 / 0
September	1 / 0	0 / 0	9 / 9	0 / 0
October	0 / 0	1 / 1	8 / 14	0 / 0
November	0 / 0	8 / 6	9 / 19	0 / 0
December	0 / 0	20 / 11	9 / 18	1 / 1

July is the hottest month for Potomac with an average high temperature of 85.7°, which ranks it as cooler than most places in Maryland. In Potomac, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Potomac are September, June and May.

August is the hottest month for Stanwood with an average high temperature of 74.5°, which ranks it as cooler than most places in Washington. In Stanwood, there are 2 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Stanwood are August, July and September.

January has the coldest nighttime temperatures for Potomac with an average of 25.3°. This is about average compared to other places in Maryland.

December has the coldest nighttime temperatures for Stanwood with an average of 34.4°. This is warmer than most places in Washington.

In Potomac, there are 18.6 days annually when the high temperature is over 90°, which is cooler than most places in Maryland.

In Stanwood, there are 0.4 days annually when the high temperature is over 90°, which is one of the coolest places in Washington.

In Potomac, there are 87.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Maryland.

In Stanwood, there are 40.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Washington.

In Potomac, there are 0.2 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Maryland.

In Stanwood, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Washington.

May is the wettest month in Potomac with 4.3 inches of rain, and the driest month is February with 2.7 inches. The wettest season is Summer with 27% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 42.0 inches in Potomac means that it is drier than most places in Maryland.

November is the wettest month in Stanwood with 5.3 inches of rain, and the driest month is July with 1.2 inches. The wettest season is Spring with 33% of yearly precipitation and 13% occurs in Autumn, which is the driest season. The annual rainfall of 36.5 inches in Stanwood means that it is drier than most places in Washington.

May is the rainiest month in Potomac with 11.9 days of rain, and February is the driest month with only 8.4 rainy days. There are 114.0 rainy days annually in Potomac, which is about average compared to other places in Maryland. The rainiest season is Summer when it rains 28% of the time and the driest is Winter with only a 23% chance of a rainy day.

November is the rainiest month in Stanwood with 18.6 days of rain, and August is the driest month with only 5.4 rainy days. There are 158.7 rainy days annually in Stanwood, which is about average compared to other places in Washington. The rainiest season is Spring when it rains 32% of the time and the driest is Autumn with only a 14% chance of a rainy day.

An annual snowfall of 16.8 inches in Potomac means that it is snowier than most places in Maryland.

An annual snowfall of 4.8 inches in Stanwood means that it is about average compared to other places in Washington.

January is the snowiest month in Potomac with 6.4 inches of snow, and 5 months of the year have significant snowfall.

December is the snowiest month in Stanwood with 1.8 inches of snow, and 4 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 Potomac 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

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Reviews for Stanwood 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

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See all reviews

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2025 Compare Climate & Weather:
Potomac, MD vs Stanwood, WA

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Potomac / Stanwood

January has the coldest nighttime temperatures for Potomac with an average of 25.3°. This is about average compared to other places in Maryland.

December has the coldest nighttime temperatures for Stanwood with an average of 34.4°. This is warmer than most places in Washington.

In Potomac, there are 18.6 days annually when the high temperature is over 90°, which is cooler than most places in Maryland.

In Stanwood, there are 0.4 days annually when the high temperature is over 90°, which is one of the coolest places in Washington.

In Potomac, there are 87.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Maryland.

In Stanwood, there are 40.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Washington.

In Potomac, there are 0.2 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Maryland.

In Stanwood, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Washington.

An annual snowfall of 16.8 inches in Potomac means that it is snowier than most places in Maryland.

An annual snowfall of 4.8 inches in Stanwood means that it is about average compared to other places in Washington.

January is the snowiest month in Potomac with 6.4 inches of snow, and 5 months of the year have significant snowfall.

December is the snowiest month in Stanwood with 1.8 inches of snow, and 4 months of the year have significant snowfall.

DID YOU KNOW?

Reviews for Potomac 2 Reviews

Reviews for Stanwood 2 Reviews

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2025 Compare Climate & Weather:Potomac, MD vs Stanwood, WA

Highlights

Weather Highlights

BestPlaces Comfort Index

Average Monthly High / Low (°F)

Hot, Freezing, Rainy, Snowy Days: Potomac / Stanwood

January has the coldest nighttime temperatures for Potomac with an average of 25.3°. This is about average compared to other places in Maryland.December has the coldest nighttime temperatures for Stanwood with an average of 34.4°. This is warmer than most places in Washington.

In Potomac, there are 18.6 days annually when the high temperature is over 90°, which is cooler than most places in Maryland.In Stanwood, there are 0.4 days annually when the high temperature is over 90°, which is one of the coolest places in Washington.

In Potomac, there are 87.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Maryland.In Stanwood, there are 40.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Washington.

In Potomac, there are 0.2 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Maryland.In Stanwood, there are 0.0 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Washington.

An annual snowfall of 16.8 inches in Potomac means that it is snowier than most places in Maryland.An annual snowfall of 4.8 inches in Stanwood means that it is about average compared to other places in Washington.

January is the snowiest month in Potomac with 6.4 inches of snow, and 5 months of the year have significant snowfall.December is the snowiest month in Stanwood with 1.8 inches of snow, and 4 months of the year have significant snowfall.

DID YOU KNOW?

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Reviews for Stanwood 2 Reviews

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2025 Compare Climate & Weather:
Potomac, MD vs Stanwood, WA

January has the coldest nighttime temperatures for Potomac with an average of 25.3°. This is about average compared to other places in Maryland.

December has the coldest nighttime temperatures for Stanwood with an average of 34.4°. This is warmer than most places in Washington.

In Potomac, there are 18.6 days annually when the high temperature is over 90°, which is cooler than most places in Maryland.

In Stanwood, there are 0.4 days annually when the high temperature is over 90°, which is one of the coolest places in Washington.

In Potomac, there are 87.4 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Maryland.

In Stanwood, there are 40.7 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Washington.

An annual snowfall of 16.8 inches in Potomac means that it is snowier than most places in Maryland.

An annual snowfall of 4.8 inches in Stanwood means that it is about average compared to other places in Washington.

January is the snowiest month in Potomac with 6.4 inches of snow, and 5 months of the year have significant snowfall.

December is the snowiest month in Stanwood with 1.8 inches of snow, and 4 months of the year have significant snowfall.