Portland Downtown, OR: May

31 May 2026: May 2026 averaged 61.1°F in Portland Downtown, OR, the warmest May since 2023, tied 24th warmest of 150 (with 1914).

May 2026

Mean temperature: 61.1°F; Warmest since 2023; 24th warmest of 150
Precipitation: 0.83 in; Driest since 2018; 13th driest of 153

A normal May in Portland Downtown, OR (1991 to 2020): a mean temperature of 59.7°F, between 54.7°F and 61.3°F in eight years of ten and 2.25 in of precipitation, between 1.02 in and 4.88 in in eight years of ten.

The mean temperature of every May in Portland Downtown, OR since 1875: 61.1°F in 2026; the highest is 64.2°F, in 1958.

Normal range, 54.7 to 61.3°F

Every year, ranked, as a table

Every May in Portland Downtown, OR from 1872 to 2026, ranked: the mean temperature, the mean high and the mean low from the warmest, the precipitation from the wettest; a year missing more than a tenth of its days is not ranked.

Year	Mean, °F	Rank	High, °F	Rank	Low, °F	Rank	Precipitation, in	Rank	Days missing
2026	61.1	24	71.5	19	50.6	29	0.83	141	0
2025	59.3	53	68.8	60	49.7	41	1.43	102	0
2024	57	98	66.4	96	47.5	103	3.01	38	0
2023	62.7	5	73.2	10	52.2	5	1.20	117	0
2022	54.8	132	63	134	46.6	125	4.69	8	0
2021	59	60	68.5	64	49.4	52	1.22	114	0
2020	59.9	41	68.8	60	51	23	2.22	63	0
2019	60.6	30	70.8	29	50.4	32	1.83	79	0
2018	61.5	12	71.3	22	51.7	12	0.29	152	0
2017	59.6	50	69.7	46	49.6	45	2.25	59	0
2016	61	26	70.8	29	51.3	19	1.30	109	0
2015	60.2	36	69.6	49	50.9	25	0.64	147	0
2014	60.5	32	69.8	42	51.2	21	2.79	42	0
2013	59.8	44	69.1	55	50.3	35	5.26	2	1
2012	57	98	66.6	89	47.3	110	3.21	34	0
2011	53.6	147	61.9	143	45.3	145	3.25	33	0
2010	55	130	63.6	130	46.4	131	4.63	11	0
2009	59.7	48	71.3	22	48	93	3.93	20	0
2008	58.4	71	67.5	81	49.7	41	1.25	111	1
2007	59	60	69.7	46	48.3	86	1.56	96	0
2005	60	37	68.1	73	52.1	6	5.06	4	1
2004	59.3	53	67.5	81	51.1	22	1.17	119	0
2003	57.7	82	67	86	48.5	79	1.29	110	0
2002	55.8	118	65.1	113	46.6	125	1.57	93	1
2001	59.8	44	71.6	16	47.9	95	1.12	124	0
2000	57.2	93	66	102	48.4	83	2.51	50	0
1999	54.4	139	63.5	131	45.6	140	2.59	46	2
1998	56	115	62.5	138	49.6	45	5.18	3	0
1997	62.8	4	72.9	11	52.6	3	2.46	51	0
1996	54.8	132	62.3	141	47.3	110	4.84	6	0
1995	60.4	33	70.6	34	50.1	37	1.13	123	0
1994	59.8	44	69.1	55	50.5	31	1.23	112	0
1993	61.3	15	70.9	26	51.6	16	4.02	17	0
1992	64	2	75.8	1	52.1	6	0.13	153	0
1991	54.2	142	61.6	144	46.8	119	4.13	14	0
1989	58	76	67.2	83	48.8	68	3.53	30	0
1988	56.1	114	65.3	110	47	116	2.97	39	0
1987	60.4	33	70	40	50.8	28	1.88	76	0
1986	57.1	96	66.1	100	48.1	91	2.33	56	1
1985	57.4	91	66.5	90	48.2	88	0.88	138	0
1984	55.7	121	64.5	117	46.9	118	4.09	15	0
1983	60.8	27	71.5	19	50.1	37	2.38	54	0
1982	58	76	69.1	55	46.8	119	0.59	149	0
1981	57.6	85	66.4	96	48.8	68	1.81	82	0
1980	57.7	82	66.5	90	48.9	64	2.16	70	0
1979	59.9	41	70.4	37	49.5	49	2.18	65	1
1978	56.9	100	67.2	83	46.8	119	3.70	26	1
1977	54.1	143	62.4	140	45.9	138	4.39	13	0
1976	57.9	80	68.3	67	47.5	103	1.74	85	0
1975	58.1	74	69	58	47.1	114	1.97	73	0
1974	55.2	126	63.8	126	46.6	125	2.17	68	0
1973	60	37	70.7	32	49.3	54	1.22	114	0
1972	61.3	15	71.6	16	50.9	25	2.45	52	0
1971	58.4	71	68.3	67	48.5	79	1.14	121	0
1970	58	76	68.8	60	47.2	113	1.52	97	0
1969	62.3	10	72.8	12	51.7	12	1.52	97	0
1968	58.5	68	67.7	78	49.3	54	3.76	23	0
1967	59.5	51	70.3	39	48.6	78	1.23	112	0
1966	59.7	48	70.6	34	48.8	68	1.15	120	0
1965	55.9	117	65.6	106	46.4	131	1.33	107	1
1964	56	115	66	102	46.1	137	0.93	134	0
1963	59.8	44	69.9	41	49.6	45	3.58	28	0
1962	53.8	145	60.5	148	47	116	2.79	42	0
1961	58	76	66.5	90	49.5	49	3.35	32	0
1960	55.5	123	63.8	126	47.3	110	4.07	16	0
1959	56.8	103	65.7	104	47.8	97	3.73	24	0
1958	64.2	1	74.4	4	54	1	0.86	140	0
1957	60.8	27	69.2	52	52.4	4	2.18	65	0
1956	61.3	15	71.4	21	51.3	19	1.46	101	0
1955	54.7	137	63.9	125	45.5	141	1.10	125	0
1954	58.8	66	68.3	67	49.2	57	2.25	59	0
1953	56.3	111	64.7	116	48	93	2.61	45	0
1952	59	60	69.2	52	48.9	64	0.98	133	0
1951	58.4	71	68.1	73	48.7	74	1.61	90	0
1950	56.8	103	66.8	87	46.8	119	0.76	142	0
1949	61.3	15	71.1	24	51.5	17	2.77	44	0
1948	57.2	93	65.2	112	49.1	59	3.88	22	0
1947	63.1	3	73.4	8	52.8	2	0.87	139	0
1946	61.2	19	70.5	36	52	9	1.19	118	0
1945	60	37	68.2	71	51.7	12	4.46	12	0
1944	59	60	68.4	65	49.6	45	1.07	130	0
1943	56.6	108	65.3	110	47.9	95	1.65	88	0
1942	57.4	91	65.4	109	49.3	54	2.59	46	0
1941	59	60	68	76	50.1	37	4.97	5	0
1940	62.6	7	73.3	9	51.9	10	1.57	93	0
1939	60.7	29	70.9	26	50.4	32	1.08	128	0
1938	59.4	52	69.8	42	49	61	0.65	146	0
1937	58.5	68	68.4	65	48.5	79	1.06	131	0
1936	61.2	19	70.7	32	51.7	12	3.72	25	0
1935	57.9	80	68.9	59	46.8	119	0.61	148	0
1934	61.5	12	70.8	29	52.1	6	1.60	91	0
1933	53.9	144	61	146	46.8	119	3.59	27	0
1932	57.6	85	66.5	90	48.7	74	1.50	99	0
1931	62.7	5	73.5	7	51.9	10	1.09	126	0
1930	55	130	63.8	126	46.3	134	3.08	37	0
1929	58.5	68	68.3	67	48.8	68	1.14	121	0
1928	62.6	7	74.1	5	51	23	0.74	143	0
1927	55.3	125	62.9	135	47.8	97	2.24	61	0
1926	59.2	55	68.1	73	50.3	35	2.83	41	0
1925	61.2	19	71	25	51.4	18	0.74	143	0
1924	61.2	19	72.4	14	50.1	37	0.45	151	0
1923	57.6	85	66.1	100	49.1	59	1.48	100	0
1922	58.1	74	67.9	77	48.2	88	1.60	91	0
1921	57.1	96	66.5	90	47.7	99	0.99	132	0
1920	55.1	128	65.7	104	44.5	149	0.91	136	0
1919	57.2	93	66.8	87	47.7	99	1.95	74	0
1918	55.6	122	64.5	117	46.6	125	1.38	103	0
1917	54.6	138	61.6	144	47.5	103	2.31	57	0
1916	54.8	132	63.3	133	46.2	136	2.05	71	0
1915	57.7	82	66.5	90	48.9	64	2.59	46	0
1914	61.1	24	71.6	16	50.6	29	1.22	114	0
1913	57.6	85	66.4	96	48.7	74	1.63	89	0
1912	59.1	56	68.8	60	49.5	49	1.89	75	0
1911	54.3	141	62.2	142	46.4	131	3.95	19	0
1910	60	37	69.7	46	50.4	32	1.82	81	0
1909	54.8	132	64.3	122	45.4	142	1.79	83	0
1908	52.9	148	60.9	147	44.8	147	4.66	10	0
1907	59.1	56	69.3	50	49	61	1.37	105	0
1906	56.9	100	65.5	107	48.3	86	2.00	72	0
1905	56.3	111	64.4	120	48.1	91	2.56	49	0
1904	57.6	85	67.7	78	47.5	103	0.59	149	0
1903	56.9	100	66.3	99	47.5	103	1.71	86	0
1902	56.2	113	63.5	131	49	61	2.19	64	0
1901	56.7	107	65	114	48.4	83	2.41	53	0
1900	56.8	103	64.4	120	49.2	57	3.90	21	0
1899	51.1	150	57.5	150	44.7	148	3.16	35	0
1898	56.6	108	65.5	107	47.7	99	1.78	84	0
1897	61.4	14	71.9	15	50.9	25	0.90	137	0
1896	52.2	149	59.6	149	44.9	146	3.55	29	0
1895	55.8	118	64	124	47.5	103	3.42	31	0
1894	55.5	123	64.5	117	46.5	129	1.09	126	0
1893	54.4	139	62.5	138	46.3	134	2.30	58	0
1892	59	60	69.2	52	48.9	64	1.57	93	0
1891	59.9	41	70.4	37	49.4	52	1.83	79	0
1890	60.6	30	72.5	13	48.8	68	1.08	128	0
1889	60.3	35	70.9	26	49.7	41	4.02	17	0
1888	62.4	9	75.2	2	49.7	41	0.68	145	0
1887	58.7	67	69.3	50	48.2	88	4.77	7	0
1886	59.1	56	69.8	42	48.4	83	1.32	108	0
1885	61.7	11	74.5	3	48.8	68	4.69	8	0
1884	61.2	19	73.7	6	48.7	74	1.34	106	0
1883	59.1	56	69.8	42	48.5	79	1.67	87	0
1882	57.6	85	68.2	71	47.1	114	1.84	78	0
1881	56.8	103	67.2	83	46.5	129	1.38	103	0
1880	53.7	146	62.8	136	44.5	149	3.13	36	0
1879	55.2	126	62.7	137	47.6	102	6.60	1	0
1878	56.6	108	67.7	78	45.4	142	2.17	68	0
1877	55.1	128	64.8	115	45.4	142	2.24	61	0
1876	54.8	132	63.7	129	45.9	138	1.88	76	0
1875	55.8	118	64.1	123	47.4	109	2.87	40	0
1874							2.38	54	31
1873							2.18	65	31
1872							0.92	135	31

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1958	64.2
1992	64
1947	63.1
1997	62.8
2023	62.7
1931	62.7
1940	62.6
1928	62.6
1888	62.4
1969	62.3

Coldest
Year	Mean, °F
1899	51.1
1896	52.2
1908	52.9
2011	53.6
1880	53.7
1962	53.8
1933	53.9
1977	54.1
1991	54.2
1911	54.3

Wettest
Year	Precipitation, in
1879	6.60
2013	5.26
1998	5.18
2005	5.06
1941	4.97
1996	4.84
1887	4.77
2022	4.69
1885	4.69
1908	4.66

Driest
Year	Precipitation, in
1992	0.13
2018	0.29
1924	0.45
1982	0.59
1904	0.59
1935	0.61
2015	0.64
1938	0.65
1888	0.68
1928	0.74
More years share the last value

The hottest, coldest and wettest days

Hottest day: 91°F; 3 May 2026
Coldest night: 41°F; 17 May 2026
Wettest day: 0.20 in; 25 May 2026, 13 May 2026

Every month, season and year

Months

Seasons

Years

Portland Downtown, OR the day's answers

All-time records

Every answer in words

May 2026 brought 0.83 in of precipitation in Portland Downtown, OR, the driest May since 2018, 13th driest of 153.
The hottest day of May 2026 in Portland Downtown, OR: 91°F on Sunday 3 May 2026.
The coldest night of May 2026 in Portland Downtown, OR: a low of 41°F on Sunday 17 May 2026.
The wettest day of May 2026 in Portland Downtown, OR: 0.20 in on Monday 25 May 2026 and Wednesday 13 May 2026.