2024 Compare Climate & Weather:
Portsmouth, NH vs Portland, OR
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Highlights
On average, there are 144 sunny days per year in Portland. Portsmouth averages 198 sunny days per year. The US average is 205 sunny days.
Portland, Oregon gets 42.8 inches of rain, on average, per year. Portsmouth, New Hampshire gets 50.1 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. Portsmouth averages 53.2 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
Portsmouth, New Hampshire
Summer High: the July high is around 81.9 degrees
Winter Low: the January low is 13.8
Rain: averages 50.1 inches of rain a year
Snow: averages 53.2 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.
PortsmouthThe annual BestPlaces Comfort Index for Portsmouth is 6.8 (10=best), which means it is one of the most pleasant places in New Hampshire.
6.8 / 10
August, July and June are the most pleasant months in Portsmouth, while January and December are the least comfortable months.
Today's Weather - Portsmouth, NH
2 PM PST
Cloudy
47°F
| DAY | DESCRIPTION | HIGH / LOW | WIND |
|---|
| This Afternoon | Cloudy | 51° / 43° | SE 5 to 10 mph |
| Wednesday | Chance Rain Showers then Cloudy | 50° / 43° | E 5 mph |
| Thursday | Chance Rain Showers | 57° / 43° | SE 5 to 10 mph |
| Friday | Partly Sunny | 55° / 43° | E 5 to 10 mph |
| Saturday | Partly Sunny | 53° / 42° | E 5 to 10 mph |
| Sunday | Chance Rain Showers | 55° / 45° | SE 5 to 10 mph |
| Monday | Slight Chance Rain Showers | 67° / 47° | SW 5 to 10 mph |
Average Monthly High / Low (°F)
| Month | Portsmouth, NH | Portland, OR |
|---|
| January | 33° / 14° | 48° / 36° |
| February | 37° / 17° | 52° / 37° |
| March | 45° / 24° | 57° / 40° |
| April | 57° / 34° | 62° / 43° |
| May | 68° / 44° | 68° / 48° |
| June | 77° / 53° | 74° / 52° |
| July | 82° / 58° | 81° / 56° |
| August | 81° / 57° | 81° / 56° |
| September | 73° / 49° | 76° / 52° |
| October | 61° / 38° | 64° / 46° |
| November | 50° / 31° | 53° / 40° |
| December | 39° / 21° | 46° / 36° |
Hot, Freezing, Rainy, Snowy Days: Portsmouth / Portland
| Month | Hot Days | Freezing Days | Rainy Days | Snowy Days |
|---|
| January | 0 / 0 | 30 / 7 | 10 / 19 | 6 / 1 |
| February | 0 / 0 | 26 / 6 | 8 / 15 | 4 / 0 |
| March | 0 / 0 | 24 / 3 | 10 / 18 | 4 / 0 |
| April | 0 / 0 | 13 / 1 | 11 / 16 | 1 / 0 |
| May | 0 / 1 | 2 / 0 | 11 / 13 | 0 / 0 |
| June | 2 / 1 | 0 / 0 | 11 / 9 | 0 / 0 |
| July | 3 / 4 | 0 / 0 | 10 / 4 | 0 / 0 |
| August | 3 / 4 | 0 / 0 | 9 / 4 | 0 / 0 |
| September | 1 / 1 | 1 / 0 | 9 / 7 | 0 / 0 |
| October | 0 / 0 | 9 / 1 | 10 / 13 | 0 / 0 |
| November | 0 / 0 | 18 / 3 | 10 / 19 | 1 / 0 |
| December | 0 / 0 | 28 / 9 | 10 / 19 | 4 / 1 |
July is the hottest month for Portsmouth with an average high temperature of 81.9°, which ranks it as warmer than most places in New Hampshire. In Portsmouth, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Portsmouth are June, August and July.
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 Portsmouth with an average of 13.8°. This is one of the warmest places in New Hampshire.
December has the coldest nighttime temperatures for Portland with an average of 35.6°. This is warmer than most places in Oregon.
In Portsmouth, there are 8.0 days annually when the high temperature is over 90°, which is hotter than most places in New Hampshire.
In Portland, there are 11.6 days annually when the high temperature is over 90°, which is cooler than most places in Oregon.
In Portsmouth, there are 149.8 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in New Hampshire.
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 Portsmouth, there are 7.2 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in New Hampshire.
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.
November is the wettest month in Portsmouth with 4.8 inches of rain, and the driest month is January with 3.5 inches. The wettest season is Summer with 28% of yearly precipitation and 23% occurs in Spring, which is the driest season. The annual rainfall of 50.1 inches in Portsmouth means that it is one of the wettest places in New Hampshire.
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 Portsmouth with 11.4 days of rain, and February is the driest month with only 7.7 rainy days. There are 118.3 rainy days annually in Portsmouth, which is one of the least rainy places in New Hampshire. The rainiest season is Summer when it rains 27% of the time and the driest is Spring with only a 23% 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 53.2 inches in Portsmouth means that it is one of the least snowy places in New Hampshire.
An annual snowfall of 2.6 inches in Portland means that it is less snowy than most places in Oregon.
January is the snowiest month in Portsmouth with 16.7 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 Portsmouth 
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 Portsmouth
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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