. In fact, winter is mild enough, but not as in the Mediterranean climate, and rainfall is frequent for many months a year, but summer is warm to hot and sunny, albeit with quite cool nights.
and is located 100 km (60 mi) away from the Pacific coast, on the confluence of the Willamette and Columbia rivers, beyond which lies the city of Vancouver, in the state of Washington. We are in northwestern United States.
, fog can form at night and in the early morning. On the coldest nights of the year, the temperature generally drops to -7/-8 °C (18/19 °F), but sometimes it can also drop below. In 1989, it went down to -13 °C (8.5 °F), and back in 1950, to as low as -19 °C (-2 °F). Sometimes it can snow, although heavy snowfalls are rare. On average, 11 cm (4.3 in) of snow fall per year.
, there may be heat waves that last a few days. On the hottest days of the year, the temperature usually reaches 37/38 °C (99/100 °F). In 1981, it reached 41.6 °C (107 °F). At the end of June 2021, during an exceptional heat wave, the temperature reached 47 °C (116 °F).
is relatively abundant, however, as in Seattle, excluding summer, there may be several consecutive days characterized by continuous drizzle.
hours per year. The sun shines 23% of the time in December and 70% of the time in July (in Seattle, a little further north, the average goes from 20% in December to 65% in July).
: 75 km (45 mi) to the southeast is Mount Hood, which is the highest peak in Oregon with its 3,425 meters (11,237 ft), while 75 km (45 mi) to the northeast, in the state of Washigton, we find Mount St. Helens, 2,549 meters (8,363 ft) high and famous for the 1980 eruption.
The best time in Portland is from mid-May to late September. The driest and sunniest period is generally from mid-June to early September, but it can sometimes get very hot, especially in July and August. You can therefore go from mid-May to mid-June and in the month of September.
. Here are the average temperatures.
January is generally a quite cold month. The average temperature is of
5.5 °C, with a minimum of
2.3 °C and a maximum of
8.6 °C.
On the coldest nights of the month, the temperature usually drops to around
-4 °C. However, it dropped to
-12 °C in January 2017.
On the warmest days of the month, the temperature usually reaches around
14.5 °C. However, it reached
18.9 °C in January 2005.
Precipitation amounts to
130 mm, distributed over 19 days.
The day lasts on average 9 hours and 10 minutes.
There are on average 3 hours of sunshine per day. So, the sun shines 30% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is of
14.8 kph.
February is generally a quite mild month. The average temperature is of
6.8 °C, with a minimum of
2.7 °C and a maximum of
10.8 °C.
On the coldest nights of the month, the temperature usually drops to around
-3.5 °C. However, it dropped to
-10 °C in February 1996.
On the warmest days of the month, the temperature usually reaches around
15.5 °C. However, it reached
19.4 °C in February 1991.
Precipitation amounts to
95 mm, distributed over 16 days.
The day lasts on average 10 hours and 25 minutes.
There are on average 4 hours of sunshine per day. So, the sun shines 40% of the time.
The average humidity is 76%. Hence, the air is normally humid.
The average wind speed is of
13.5 kph.
March is generally a mild month. The average temperature is of
9 °C, with a minimum of
4.3 °C and a maximum of
13.8 °C.
On the coldest nights of the month, the temperature usually drops to around
-1 °C. However, it dropped to
-3.9 °C in March 2019.
On the warmest days of the month, the temperature usually reaches around
21 °C. However, it reached
25 °C in March 1994.
Precipitation amounts to
100 mm, distributed over 18 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 51% of the time.
The average humidity is 73%. Hence, the air is normally humid.
The average wind speed is of
12.1 kph.
April is generally a mild month. The average temperature is of
11.6 °C, with a minimum of
6.5 °C and a maximum of
16.7 °C.
On the coldest nights of the month, the temperature usually drops to around
1.5 °C. However, it dropped to
-1 °C in April 1997.
On the warmest days of the month, the temperature usually reaches around
25.5 °C. However, it reached
31.7 °C in April 2016.
Precipitation amounts to
75 mm, distributed over 17 days.
The day lasts on average 13 hours and 35 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 69%.
The average wind speed is of
11.3 kph.
May is generally a very mild month. The average temperature is of
15.2 °C, with a minimum of
9.7 °C and a maximum of
20.7 °C.
On the coldest nights of the month, the temperature usually drops to around
4.5 °C. However, it dropped to
2.8 °C in May 1999.
On the warmest days of the month, the temperature usually reaches around
30.5 °C. However, it reached
35 °C in May 2001.
Precipitation amounts to
65 mm, distributed over 13 days.
The day lasts on average 15 hours and 0 minutes. So the days are long.
There are on average 9 hours of sunshine per day. So, the sun shines 59% of the time.
The average humidity is 66%.
The average wind speed is of
10.5 kph.
June is generally a very mild month. The average temperature is of
17.9 °C, with a minimum of
12.3 °C and a maximum of
23.5 °C.
On the coldest nights of the month, the temperature usually drops to around
8.5 °C. However, it dropped to
5.6 °C in June 1991.
On the warmest days of the month, the temperature usually reaches around
33 °C. However, it reached
38.9 °C in June 2006.
Precipitation amounts to
40 mm, distributed over 9 days.
The day lasts on average 15 hours and 35 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 9.5 hours of sunshine per day. So, the sun shines 62% of the time.
The average humidity is 64%.
The average wind speed is of
10.8 kph.
July is generally a warm month. The average temperature is of
21.2 °C, with a minimum of
14.7 °C and a maximum of
27.7 °C.
On the coldest nights of the month, the temperature usually drops to around
11 °C. However, it dropped to
8.9 °C in July 2000.
On the warmest days of the month, the temperature usually reaches around
36 °C. However, it reached
41.1 °C in July 2009.
Precipitation amounts to
15 mm, distributed over 4 days.
The day lasts on average 15 hours and 10 minutes. So the days are long.
There are on average 10.5 hours of sunshine per day. So, the sun shines 71% of the time.
The average humidity is 60%.
The average wind speed is of
11.2 kph.
August, the warmest month of the year, is generally a warm month. The average temperature is of
21.4 °C, with a minimum of
14.9 °C and a maximum of
27.9 °C.
On the coldest nights of the month, the temperature usually drops to around
11 °C. However, it dropped to
8.3 °C in August 1992.
On the warmest days of the month, the temperature usually reaches around
36 °C. However, it reached
40.6 °C in August 2017.
Precipitation amounts to
15 mm, distributed over 4 days.
The day lasts on average 14 hours and 0 minutes.
There are on average 9.5 hours of sunshine per day. So, the sun shines 69% of the time.
The average humidity is 60%.
The average wind speed is of
10.6 kph.
September is generally a warm month. The average temperature is of
18.6 °C, with a minimum of
12.3 °C and a maximum of
24.8 °C.
On the coldest nights of the month, the temperature usually drops to around
7.5 °C. However, it dropped to
3.9 °C in September 2019.
On the warmest days of the month, the temperature usually reaches around
33 °C. However, it reached
36.7 °C in September 1998.
Precipitation amounts to
40 mm, distributed over 7 days.
The day lasts on average 12 hours and 30 minutes.
There are on average 8 hours of sunshine per day. So, the sun shines 63% of the time.
The average humidity is 65%.
The average wind speed is of
9.7 kph.
October is generally a mild month. The average temperature is of
13.1 °C, with a minimum of
8.2 °C and a maximum of
18 °C.
On the coldest nights of the month, the temperature usually drops to around
2.5 °C. However, it dropped to
-2.8 °C in October 1991.
On the warmest days of the month, the temperature usually reaches around
25.5 °C. However, it reached
30 °C in October 1991.
Precipitation amounts to
85 mm, distributed over 14 days.
The day lasts on average 10 hours and 55 minutes.
There are on average 5 hours of sunshine per day. So, the sun shines 45% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is of
10 kph.
November is generally a quite mild month. The average temperature is of
8.4 °C, with a minimum of
4.8 °C and a maximum of
11.9 °C.
On the coldest nights of the month, the temperature usually drops to around
-1.5 °C. However, it dropped to
-8 °C in November 2010.
On the warmest days of the month, the temperature usually reaches around
18 °C. However, it reached
21.7 °C in November 1999.
Precipitation amounts to
140 mm, distributed over 18 days.
The day lasts on average 9 hours and 30 minutes.
There are on average 2.5 hours of sunshine per day. So, the sun shines 28% of the time.
The average humidity is 81%. Hence, the air is normally humid.
The average wind speed is of
12.5 kph.
December, the coldest month of the year, is generally a quite cold month. The average temperature is of
5.3 °C, with a minimum of
2.3 °C and a maximum of
8.3 °C.
On the coldest nights of the month, the temperature usually drops to around
-4 °C. However, it dropped to
-11.1 °C in December 2009.
On the warmest days of the month, the temperature usually reaches around
14.5 °C. However, it reached
18.3 °C in December 1993.
Precipitation amounts to
145 mm, distributed over 19 days.
The day lasts on average 8 hours and 50 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 2 hours of sunshine per day. So, the sun shines 23% of the time.
The average humidity is 82%. Hence, the air is normally humid.
The average wind speed is of
14.6 kph.