Portland, Oregon
Climate

Portland, Oregon

Section Title: Climate
Table Section Text: None

Climate data for Portland, Oregon (PDX), 1981–2010 normals, extremes 1940–present

Month	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Year

Record high °F (°C)	66 (19)	71 (22)	80 (27)	90 (32)	100 (38)	102 (39)	107 (42)	107 (42)	105 (41)	92 (33)	73 (23)	65 (18)	107 (42)

Mean maximum °F (°C)	58.4 (14.7)	61.4 (16.3)	69.5 (20.8)	78.7 (25.9)	87.1 (30.6)	91.3 (32.9)	96.7 (35.9)	96.5 (35.8)	90.6 (32.6)	78.2 (25.7)	63.6 (17.6)	57.5 (14.2)	100.2 (37.9)

Average high °F (°C)	47.0 (8.3)	51.3 (10.7)	56.7 (13.7)	61.4 (16.3)	68.0 (20.0)	73.5 (23.1)	80.6 (27.0)	81.1 (27.3)	75.8 (24.3)	63.8 (17.7)	52.8 (11.6)	45.6 (7.6)	63.1 (17.3)

Average low °F (°C)	35.8 (2.1)	36.3 (2.4)	39.6 (4.2)	43.1 (6.2)	48.6 (9.2)	53.6 (12.0)	57.8 (14.3)	58.0 (14.4)	53.1 (11.7)	46.0 (7.8)	40.5 (4.7)	35.2 (1.8)	45.6 (7.6)

Mean minimum °F (°C)	24.6 (−4.1)	24.5 (−4.2)	30.3 (−0.9)	34.2 (1.2)	40.1 (4.5)	46.7 (8.2)	51.2 (10.7)	50.7 (10.4)	44.4 (6.9)	35.3 (1.8)	28.4 (−2.0)	23.7 (−4.6)	19.6 (−6.9)

Record low °F (°C)	−2 (−19)	−3 (−19)	19 (−7)	29 (−2)	29 (−2)	39 (4)	43 (6)	44 (7)	34 (1)	26 (−3)	13 (−11)	6 (−14)	−3 (−19)

Average precipitation inches (mm)	4.88 (124)	3.66 (93)	3.68 (93)	2.73 (69)	2.47 (63)	1.70 (43)	0.65 (17)	0.67 (17)	1.47 (37)	3.00 (76)	5.63 (143)	5.49 (139)	36.03 (915)

Average snowfall inches (cm)	0.5 (1.3)	2.1 (5.3)	0.2 (0.51)	0 (0)	0 (0)	0 (0)	0 (0)	0 (0)	0 (0)	0 (0)	0.2 (0.51)	1.3 (3.3)	4.3 (11)

Average precipitation days (≥ 0.01 in)	18.0	14.9	17.6	16.4	13.6	9.2	4.1	3.9	6.7	12.5	19.0	18.6	154.5

Average snowy days (≥ 0.1 in)	0.7	1.5	0.2	0	0	0	0	0	0	0	0.5	1.5	4.4

Average relative humidity (%)	80.9	78.0	74.6	71.6	68.7	65.8	62.8	64.8	69.4	77.9	81.5	82.7	73.2

Mean monthly sunshine hours	85.6	116.4	191.1	221.1	276.1	290.2	331.9	298.1	235.7	151.7	79.3	63.7	2,340.9

Percent possible sunshine	30	40	52	54	60	62	70	68	63	45	28	23	52

Source: NOAA (relative humidity and sun 1961–1990)

Sentence(s)

A total rainfall of 36.03 in (915 mm) falls throughout the year.

final_sentence: A total rainfall of 36.03 in (915 mm) falls throughout the year.