Average Temperatures in Portland, Oregon, Usa Temperature

Average Temperatures in Portland, Oregon, Usa

The annual average temperature in Portland, Oregon, Usa is quite mild at 12 degrees Celsius (53.6 degrees Fahrenheit).

Mean monthly temperatures vary by 16.1 °C (29°F) which is a slightly low range.

The average diurnal temperature range/ variation is 10 °C (18.1 °F).

The hottest month (August) is warm with an average temperature of 20.3 degrees Celsius (68.54 degrees Fahrenheit).

The coldest month (January) is cool with an average temperature of 4.2 degrees Celsius (39.56 degrees Fahrenheit).

Average Temperatures Table for Portland, Oregon

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
Average Max Temperature °C ( °F)	7.4 (45.3)	10.6 (51.1)	13.3 (55.9)	15.9 (60.6)	19.5 (67.1)	23.3 (73.9)	26.6 (79.9)	26.8 (80.2)	23.7 (74.7)	17.8 (64)	11.4 (52.5)	7.6 (45.7)	17 (62.6)
Average Temperature °C ( °F)	4.2 (39.6)	6.4 (43.5)	8.5 (47.3)	10.6 (51.1)	13.9 (57)	17.5 (63.5)	20.1 (68.2)	20.3 (68.5)	17.4 (63.3)	12.5 (54.5)	7.8 (46)	4.6 (40.3)	12 (53.6)
Average Min Temperature °C ( °F)	0.9 (33.6)	2.3 (36.1)	3.7 (38.7)	5.2 (41.4)	8.3 (46.9)	11.6 (52.9)	13.6 (56.5)	13.8 (56.8)	11.1 (52)	7.2 (45)	4.2 (39.6)	1.6 (34.9)	7 (44.5)

Annual

Average Max Temperature °C ( °F)

7.4 (45.3)

10.6 (51.1)

13.3 (55.9)

15.9 (60.6)

19.5 (67.1)

23.3 (73.9)

26.6 (79.9)

26.8 (80.2)

23.7 (74.7)

17.8 (64)

11.4 (52.5)

7.6 (45.7)

17 (62.6)

Average Temperature °C ( °F)

4.2 (39.6)

6.4 (43.5)

8.5 (47.3)

10.6 (51.1)

13.9 (57)

17.5 (63.5)

20.1 (68.2)

20.3 (68.5)

17.4 (63.3)

12.5 (54.5)

7.8 (46)

4.6 (40.3)

12 (53.6)

Average Min Temperature °C ( °F)

0.9 (33.6)

2.3 (36.1)

3.7 (38.7)

5.2 (41.4)

8.3 (46.9)

11.6 (52.9)

13.6 (56.5)

13.8 (56.8)

11.1 (52)

7.2 (45)

4.2 (39.6)

1.6 (34.9)

7 (44.5)

Portland, Oregon Average Temperatures Chart

The average temperature charts use a fixed scale so that you can easily compare temperatures between two or more locations. Simply line up the charts in separate tabs in your browser and toggle between tabs to visualise the differences. The charts have major grid lines at intervals of 10 °C on the left axis corresponding with intervals of 18 °F on the right axis. Minor gridlines mark intervals of 2.5 °C and 4.5 °F. The charts show the relationship between the Celsius and Fahrenheit measuring scales. Locations in the northern hemisphere run from January to December and in the southern hemisphere from July to June so that the middle of the chart always corresponds with the high sun period (for the hemisphere).

Average Temperatures in Portland, Oregon, Usa

Average Temperatures Table for Portland, Oregon

Portland, Oregon Average Temperatures Chart

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