The climate of Portland (Oregon
- United States of America)
Portland is a large city located in the northern part of the state of
Oregon in the vicinity of the border with the state of Washington.
Portland is located in Multnomah County at the junction of the
Willamette River and the Columbia River. Portland is among the 25
largest cities in the United States. Portland is known as the City of
Roses. Many rose beds can be found in the city. The largest and most
famous is the International Rose Test Garden. In this garden more than
7,000 roses of 550 varieties can be found. The Portland Trail Blazers
who compete in the National Basketball Association play their home
matches in Portland.
Portland has a Mediterranean climate characterized by pleasantly warm
summers and cool to mild winters. During the winter subzero
temperatures during the night are not uncommon. Annual precipitation
figures are high, during the winter longer periods with precipitation
may occur.
Climate information
The figures below are based on long term weather and climate records.
They are an average for Portland:
average maximum
temperature (°C)
average
minimum
temperature (°C)
average
hours of sunshine
per day
average days with
precipitation
per month
average
mm precipitation
per month
average
sea
temperature (°C)
January
7
0
3
17
n/a
February
10
2
4
15
n/a
March
13
3
6
17
n/a
April
15
4
8
14
n/a
May
19
7
9
11
n/a
June
23
10
10
8
n/a
July
26
12
11
4
n/a
August
27
12
10
5
n/a
September
23
9
8
8
n/a
October
18
6
5
12
n/a
November
11
3
3
18
n/a
December
7
1
2
19
n/a
= 0-5 mm ●
= 6-30 mm ●
= 31-60 mm ●
= 61-100 mm ●
= 101-200 mm ●
=
over 200 mm = 0-0.2 inches ● = 0.2-1.2 inches ● = 1.2-2.4 inches ● = 2.5-4 inches ● = 4.1-8 inches ● = over 8 inches
More climate information
Climate figures are very useful but don’t present a general impression
of the climate and the eventual weather circumstances within a certain
period. The figures don’t always reflect the chance of wintry weather,
extreme heat or hurricanes. That is why we offer useful extra climate
information for each month of the year:
Disclaimer
The information at this site was carefully composed from climate data collected by meteorological services, meteorological offices, climate experts and other sources. “More climate info” is based on statistics, climate data and personal experience. No rights can be derived from this site. Weather has no memory and gives no guaranties. Nothing is as changeable and unpredictable as the weather. The authors of this site feel in no way responsible for any damages caused by misinterpretation or other circumstances that may influence your holiday or trip to a certain destination. We provide information, it’s up to the reader to use it to it’s benefit.
this site in Dutch
= 0-5 mm ●
= 6-30 mm ●
= 31-60 mm ●
= 61-100 mm ●
= 101-200 mm ●
=
over 200 mm
= 0-0.2 inches ● 
= 0.2-1.2 inches ● 
= 1.2-2.4 inches ● 
= 2.5-4 inches ● 
= 4.1-8 inches ● 
= over 8 inches
