Tri-Cities, WA: August

31 August 2026: August 2026 averaged 73.6°F in Tri-Cities, WA, the warmest August since 2025, tied 57th warmest of 121 (with 1979).

August 2026

Mean temperature: 73.6°F; Warmest since 2025; 57th warmest of 121
Precipitation: 0.09 in; Wettest since 2024; 57th wettest of 122

A normal August in Tri-Cities, WA (1991 to 2020): a mean temperature of 74°F, between 71.8°F and 75.6°F in eight years of ten and 0.14 in of precipitation, between 0.01 in and 0.49 in in eight years of ten.

The mean temperature of every August in Tri-Cities, WA since 1894: 73.6°F in 2026; the highest is 79.2°F, in 1898.

Normal range, 71.8 to 75.6°F

Every year, ranked, as a table

Every August in Tri-Cities, WA from 1894 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	73.6	57	91.8	33	55.4	97	0.09	57	0
2025	75.9	16	91.9	31	60	14	0.07	65	0
2024	74.4	38	91.1	45	57.6	53	0.14	50	0
2023	75.4	24	91.5	36	59.3	20	0.31	30	0
2022	78.6	3	97.1	1	60.2	11	trace	99	1
2021	74.5	36	90.8	49	58.3	36	0.01	93	0
2020	75.2	25	93.1	17	57.2	58	0.17	46	0
2019	75.8	18	92.6	23	59	24	0.19	41	0
2018	73.2	67	91.3	40	55	104	trace	99	0
2017	74.9	30	94	12	55.9	83	0.05	73	0
2016	73.4	60	91.3	40	55.4	97	0.04	78	0
2015	73.8	53	91.3	40	56.4	71	0.03	80	0
2014	75.6	20	91.8	33	59.5	19	0.47	21	0
2013	75.1	28	91.3	40	58.9	28	0.38	24	0
2012	73.9	48	92.8	19	55.1	102	0.20	39	0
2011	73.9	48	91.6	35	56.2	74	0.03	80	0
2010	72.8	72	89.4	65	56.2	74	0.28	32	0
2009	74	46	91.1	45	56.9	61	0.07	65	0
2008	72.2	84	89.4	65	55	104	0.30	31	0
2007	71.2	102	88.9	76	53.5	118	0.14	50	1
2006	71.9	90	90.4	53	53.4	120	0.01	93	0
2005	73.3	64	92	28	54.6	112	0.07	65	0
2004	75.6	20	91.2	44	60	14	0.62	16	0
2003	74	46	91.5	36	56.5	64	0.05	73	0
2002	70.7	108	88.5	82	52.9	121	0.18	44	0
2001	74.1	44	92.2	26	56	79	0.34	27	0
2000	72	87	90	58	54	116	0.01	93	0
1999	74.5	36	90.1	57	58.8	30	0.19	41	0
1998	74.7	33	93.4	16	56	79	0.01	93	0
1997	77.8	7	92	28	63.6	1	0.05	73	0
1996	73.8	53	89.4	65	58.2	37	trace	99	0
1995	70.2	114	85	114	55.9	83	0.13	52	1
1994	75.1	28	89.2	72	60.9	10	trace	99	1
1993	71.9	90	85.3	111	58.6	32	0.93	10	1
1992	74.9	30	89.7	61	60.1	13	0.63	15	0
1991	76.9	11	91.4	38	62.4	5	0.26	36	0
1990	75.2	25	88	86	62.3	6	0.42	23	0
1989	72.5	80	85.2	113	59.8	17	0.37	25	0
1988	73.4	60	88.6	80	58.2	37	0.00	115	0
1987	72.8	72	87.8	89	57.7	48	0.03	80	0
1986	78.3	4	93.9	13	62.7	4	0.02	85	0
1985	71	104	86.1	106	55.7	90	0.22	37	1
1984	74.3	39	91.1	45	57.7	48	trace	99	1
1983			90.3	55			0.18	44	6
1982	74.6	34	89.6	63	59.9	16	0.07	65	3
1981	75.9	16	93.9	13	58	42	0.06	71	0
1980	71.2	102	86.7	103	55.7	90	0.11	56	0
1979	73.6	57	88.1	84	59	24	1.26	5	0
1977	78.2	5	94.4	9	62.2	7	1.67	1	1
1976	70.3	113	85.3	111	55.9	83	1.33	4	2
1975	70.9	106	85.8	107	55.7	90	1.06	7	2
1974	73.9	48	91.4	38	56.4	71	0.00	115	0
1973	73	68	90.2	56	55.8	88	trace	99	0
1972	75.2	25	92.3	25	58.1	40	0.77	11	0
1971	77.8	7	94.1	11	61.4	9	0.28	32	0
1970	73.3	64	90	58	56.5	64	0.15	48	0
1969	70.7	108	86.2	105	55.1	102	0.00	115	0
1968	71.3	100	83.5	120	59.1	22	0.99	9	2
1967	77.8	7	96.4	3	59.3	20	trace	99	0
1966	73.5	59	89.1	73	58	42	0.03	80	0
1965	73.8	53	87.5	93	60.2	11	0.58	17	0
1964	69.9	115	83.8	119	55.9	83	0.27	34	0
1963	73.9	48	88.7	78	59.1	22	0.06	71	0
1962	72.1	85	86.8	102	57.1	59	0.47	21	1
1961	78.8	2	94.2	10	63.4	2	0.02	85	0
1960	71.3	100	84.9	115	57.7	48	0.33	28	0
1959	69.9	115	84.5	116	55.3	100	0.13	52	0
1958							0.02	85	10
1957							0.02	85	4
1956	72	87	87.6	92	56.5	64	0.22	37	0
1955							0.00	115	12
1954	69.2	119	83.3	121	55	104	0.56	18	0
1953							0.09	57	11
1952	72.8	72	88.6	80	57	60	trace	99	0
1951	72.6	78	87.8	89	57.4	56	0.12	54	0
1950	72.7	76	89.3	70	56.2	74	0.03	80	0
1949	71.8	94	86.9	99	56.8	62	trace	99	0
1948	71.4	99	84.4	117	58.4	35	0.07	65	0
1947	71	104	85.4	110	56.6	63	0.17	46	1
1946	73.3	64	89.1	73	57.5	54	0.04	78	0
1945	73.4	60	90.8	49	56	79	0.50	20	1
1944	72.4	82	89.7	61	55	104	0.00	115	0
1943	71.5	97	88.3	83	54.7	111	0.20	39	0
1942	76.5	13	95	7	58.2	37	0.01	93	1
1941	72.9	69	87.7	91	58	42	1.03	8	0
1940	73.9	48	93.1	17	54.8	110			1
1939	75.7	19	94.9	8	56.5	64			0
1938	72.9	69	89.1	73	56.5	64			1
1937	68.7	120	83.2	122	54.2	114	0.08	61	0
1936	72.5	80	86.9	99	58.1	40			0
1935	69.8	117	85.8	107	53.8	117	0.02	85	0
1934	76.3	14	93.9	13	58.6	32	0.12	54	0
1933					57.4	56	0.08	61	5
1932	72	87	86.3	104	57.7	48	0.09	57	0
1931	74.3	39	90.7	51	57.9	46	trace	99	0
1930	74.8	32	90	58	59.6	18	0.01	93	0
1929	75.5	23	92	28	58.9	28			0
1928	71.9	90	88	86	55.8	88			0
1927	72.9	69	87.3	96	58.5	34	0.09	57	1
1926	70.8	107	86.9	99	54.9	109	0.27	34	2
1925	71.7	95	87.3	96	56.1	78	0.08	61	0
1924	71.7	95	87.5	93	56	79	0.68	13	0
1923	74.1	44	90.4	53	57.7	48	0.19	41	1
1922	72.6	78	87.5	93	58	42	0.35	26	1
1921	72.4	82	89.4	65	55.4	97	0.02	85	0
1920	70.7	108	88.1	84	53.5	118	1.53	2	1
1919	71.9	90	89.5	64	54.2	114	0.00	115	1
1918	70.6	111	85.6	109	55.7	90	0.67	14	2
1917	73.7	56	91.9	31	55.7	90	0.00	115	2
1916	72.7	76	88.8	77	56.5	64	0.02	85	0
1915	74.6	34	92.7	22	56.5	64	0.05	73	0
1914	73.4	60	89.3	70	57.5	54	trace	99	0
1913	76.9	11	95.1	6	58.8	30	0.32	29	3
1912	71.5	97	88	86	55	104	1.26	5	1
1911	74.2	42	92.8	19	55.7	90	0.54	19	0
1910			87.2	98	50	122	0.02	85	5
1909	70.4	112	90.9	48	49.9	123	trace	99	0
1908	74.3	39	92.8	19	55.9	83	trace	99	0
1907	69.6	118	83.9	118	55.2	101	0.74	12	0
1906	75.6	20	92.2	26	59	24	trace	99	2
1905	74.2	42	90.6	52	57.8	47	trace	99	0
1904	76.3	14	95.8	5	56.4	71	0.00	115	2
1899	68.7	120	83.1	123	54.4	113	1.42	3	0
1898	79.2	1	96.6	2	61.7	8	0.15	48	0
1897	77.5	10	95.9	4	59	24	0.07	65	0
1896	72.8	72	89.4	65	56.2	74	0.05	73	0
1895	72.1	85	88.7	78	55.5	96	0.08	61	0
1894	77.9	6	92.5	24	63.3	3	trace	99	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1898	79.2
1961	78.8
2022	78.6
1986	78.3
1977	78.2
1894	77.9
1997	77.8
1971	77.8
1967	77.8
1897	77.5

Coldest
Year	Mean, °F
1937	68.7
1899	68.7
1954	69.2
1907	69.6
1935	69.8
1964	69.9
1959	69.9
1995	70.2
1976	70.3
1909	70.4

Wettest
Year	Precipitation, in
1977	1.67
1920	1.53
1899	1.42
1976	1.33
1979	1.26
1912	1.26
1975	1.06
1941	1.03
1968	0.99
1993	0.93

Driest
Year	Precipitation, in
1988	0.00
1974	0.00
1969	0.00
1955	0.00
1944	0.00
1919	0.00
1917	0.00
1904	0.00
2022	trace
2018	trace
More years share the last value

The hottest, coldest and wettest days

Hottest day: 102°F; 7 August 2026
Coldest night: 45°F; 31 August 2026
Wettest day: 0.08 in; 22 August 2026

Every month, season and year

Months

Seasons

Years

Tri-Cities, WA the day's answers

All-time records

Every answer in words

August 2026 brought 0.09 in of precipitation in Tri-Cities, WA, the wettest August since 2024, tied 57th wettest of 122 (with 1953, 1932 and 1927).
The hottest day of August 2026 in Tri-Cities, WA: 102°F on Friday 7 August 2026.
The coldest night of August 2026 in Tri-Cities, WA: a low of 45°F on Monday 31 August 2026.
The wettest day of August 2026 in Tri-Cities, WA: 0.08 in on Saturday 22 August 2026.