Flagstaff, AZ: August

31 August 2026: August 2026 averaged 68.9°F in Flagstaff, AZ, the warmest August on record, in 128 years since 1899; provisional.

August 2026

Mean temperature: 68.9°F; Warmest on record; Warmest of 128, provisional
Precipitation: 1.55 in; Driest since 2025; 28th driest of 128

A normal August in Flagstaff, AZ (1991 to 2020): a mean temperature of 64.8°F, between 62.4°F and 66.9°F in eight years of ten and 2.83 in of precipitation, between 0.90 in and 5.17 in in eight years of ten.

The mean temperature of every August in Flagstaff, AZ since 1899: 68.9°F in 2026, the highest of them all.

Normal range, 62.4 to 66.9°F

Every year, ranked, as a table

Every August in Flagstaff, AZ from 1899 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	68.9	1	83.7	3	54	2	1.55	101	0
2025	67.9	4	83.7	3	52	14	1.10	113	0
2024	68.1	3	81.7	16	54.4	1	2.69	68	0
2023	66.9	9	80.8	27	53	5	3.24	49	0
2022	66	24	78.7	70	53.3	4	5.46	8	0
2021	65	42	79	60	50.9	40	3.51	39	0
2020	68.8	2	85.8	1	51.8	18	0.31	127	0
2019	67.3	6	83.5	5	51.2	32	0.41	125	0
2018	65.4	33	79.4	54	51.5	23	5.15	11	0
2017	63.7	78	77.8	83	49.6	72	3.29	45	0
2016	62	113	75.5	113	48.5	93	6.34	4	0
2015	65.5	29	79.8	40	51.3	27	3.02	53	0
2014	62	113	74.6	119	49.5	77	5.31	10	0
2013	63.8	73	76.5	104	51.1	35	4.85	15	0
2012	66	24	79.7	43	52.3	10	2.59	70	0
2011	67.2	7	82.3	9	52.1	12	2.76	65	0
2010	64.4	59	76.9	101	51.8	18	3.56	35	0
2009	64.8	46	82.2	11	47.5	106	0.74	118	0
2008	66.8	11	80.3	34	53.4	3	2.40	77	0
2007	66.3	16	79.6	46	53	5	2.56	71	0
2006	62.9	95	76	111	49.8	64	2.83	59	0
2005	62.8	98	76.1	110	49.6	72	3.41	42	0
2004	62.4	108	76.4	107	48.4	94	4.71	18	0
2003	64.8	46	78.3	73	51.4	26	3.03	51	0
2002	66	24	82.3	9	49.7	68	1.00	116	0
2001	64.2	65	79	60	49.5	77	3.46	40	0
2000	64.9	45	79	60	50.9	40	2.83	59	0
1999	62.1	110	76.2	109	48	98	2.45	74	0
1998	64.8	46	79.5	51	50.2	56	2.82	63	0
1997	63.7	78	77.6	87	49.9	62	2.83	59	0
1996	65.5	29	81.2	24	49.8	64	0.92	117	0
1995	66.9	9	81.5	17	52.2	11	2.29	83	0
1994	66.3	16	80.7	28	52	14	3.61	34	0
1993	64.8	46	79.7	43	49.9	62	4.19	25	0
1992	64.2	65	78.7	70	49.7	68	5.80	6	0
1991	66.5	13	82.9	6	50.1	57	1.64	100	0
1990	62.6	102	78.9	65	46.3	119	1.71	97	0
1989	63.5	84	79.9	37	47.2	110	3.40	43	0
1988	64.3	63	78.3	73	50.3	55	4.77	16	0
1987	62.8	98	77.7	86	47.9	100	3.74	29	0
1986	65.6	28	79.7	43	51.6	22	8.06	2	0
1985	65.2	38	81.9	15	48.6	91	1.07	114	0
1984	63.8	73	78	81	49.6	72	3.86	28	0
1983	63.8	73	78.8	68	48.8	86	3.53	38	0
1982	65.5	29	79.4	54	51.7	20	2.32	81	0
1981	65.4	33	79.8	40	51	37	3.73	31	0
1980	66.3	16	81.3	21	51.3	27	2.19	87	0
1979	60.5	127	76.7	102	44.2	127	2.38	79	0
1978	63.6	82	81	26	46.3	119	0.68	120	0
1977	66.1	23	81.2	24	51.1	35	3.72	33	0
1976	62.8	98	80.7	28	44.9	123	0.58	123	0
1975	63.5	84	82.7	7	44.3	126	0.74	118	0
1974	64.7	52	80.7	28	48.6	91	2.16	88	0
1973	64.6	53	81.5	17	47.6	105	1.25	110	0
1972	62.9	95	78.7	70	47	112	2.82	63	0
1971	64	69	77.3	94	50.7	45	4.48	21	0
1970	66.3	16	79.6	46	53	5	5.15	11	0
1969	65.1	41	79.3	58	50.9	40	1.90	92	0
1968	59.5	128	74	125	45	122	1.13	111	0
1967	64.4	59	79.4	54	49.4	79	2.68	69	0
1966	65.2	38	79.9	37	50.5	50	3.55	37	0
1965	63.7	78	79.1	59	48.3	95	1.01	115	0
1964	63.2	88	77.2	97	49.3	80	1.32	106	0
1963	63.8	73	76.3	108	51.3	27	4.96	13	0
1962	64.8	46	81.5	17	48.2	96	0.26	128	0
1961	64.1	67	77.2	97	50.9	40	3.37	44	0
1960	65.3	37	80.7	28	49.8	64	3.28	47	0
1959	62.9	95	75.2	117	50.5	50	4.96	13	0
1958	66.4	15	80.7	28	52.1	12	3.02	53	0
1957	63.4	86	77.5	90	49.3	80	1.65	99	0
1956	60.8	124	77.4	91	44.2	127	1.42	105	0
1955	64.4	59	77.8	83	51	37	3.73	31	0
1954	61.6	118	76.6	103	46.6	118	1.53	102	0
1953	62.5	106	78.1	78	47	112	4.21	24	0
1952	64.4	59	79	60	49.7	68	2.92	55	0
1951	62.6	102	77.4	91	47.7	103	5.50	7	0
1950	62.1	110	79.4	54	44.9	123	1.47	104	0
1949	64.6	53	82.1	13	47.1	111	1.26	109	0
1948	65.5	29	82.1	13	48.8	86	2.10	90	0
1947	63.9	70	79	60	48.8	86	4.25	23	0
1946	65.4	33	79.9	37	51	37	3.46	40	0
1945	67.2	7	82.6	8	51.7	20	2.91	56	0
1944	67.5	5	84.5	2	50.5	50	0.67	121	0
1943	66.3	16	79.6	46	52.9	8	2.14	89	0
1942	65	42	79.6	46	50.7	45	2.08	91	2
1941	63	93	77.4	91	48.7	90	1.31	107	0
1940	66	24	81.3	21	50.7	45	2.26	84	0
1939	66.7	12	81.4	20	51.9	16	2.45	74	0
1938	64.5	57	78.8	68	50.1	57	2.87	57	0
1937	66.5	13	82.2	11	50.9	40	2.51	72	0
1936	65.2	38	78.9	65	51.5	23	2.70	67	0
1935	64.6	53	78.1	78	51.2	32	4.01	27	0
1934	65.4	33	78.9	65	51.9	16	4.56	20	0
1933	65	42	80.2	35	49.8	64	1.90	92	0
1932	64.8	46	79.5	51	50.1	57	4.13	26	0
1931	64.1	67	77.8	83	50.5	50	3.56	35	0
1930	63.1	91	77.3	94	49	85	1.90	92	0
1929	63.9	70	77.1	100	50.6	48	3.03	51	0
1928	63.9	70	78.1	78	49.6	72	1.82	96	0
1927	62.6	102	75.5	113	49.7	68	4.43	22	0
1926	63.6	82	79.5	51	47.7	103	1.29	108	0
1925	61.7	117	75.3	116	48.1	97	2.49	73	0
1924	64.3	63	80.6	33	47.9	100	0.37	126	0
1923	61.9	116	74.5	122	49.3	80	1.86	95	0
1922	64.6	53	78	81	51.3	27	3.24	49	0
1921	63	93	74.6	119	51.3	27	4.74	17	0
1920	62	113	76.5	104	47.5	106	2.39	78	0
1919	63.7	78	78.3	73	49.2	83	2.87	57	0
1918	61.1	122	75.4	115	46.9	114	2.83	59	0
1917	62.5	106	78.2	76	46.9	114	1.11	112	0
1916	60.6	126	73.6	127	47.5	106	3.29	45	0
1915	63.2	88	79.6	46	46.7	117	0.54	124	0
1914	63.1	91	78.2	76	48	98	2.30	82	0
1913	63.4	86	77.2	97	49.6	72	2.20	86	0
1912	61.2	120	75.1	118	47.3	109	0.61	122	0
1911	62.1	110	77.3	94	46.9	114	2.45	74	0
1910	63.8	73	77.6	87	50	60	3.74	29	0
1909	62.8	98	74.2	124	51.5	23	6.73	3	0
1908	62.6	102	74.6	119	50.5	50	4.69	19	0
1907	61.6	118	74.4	123	48.8	86	5.36	9	0
1906	60.7	125	73.6	127	47.8	102	3.28	47	0
1905	64.5	57	79.8	40	49.2	83	2.34	80	0
1904	62.3	109	74	125	50.6	48	8.77	1	0
1903	66.2	22	81.3	21	51.2	32	2.26	84	0
1902	63.2	88	76.5	104	50	60	6.10	5	0
1901	66.3	16	80.1	36	52.5	9	1.52	103	0
1900	61.2	120	77.6	87	44.7	125	1.70	98	0
1899	60.9	123	75.8	112	46	121	2.72	66	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2026	68.9
2020	68.8
2024	68.1
2025	67.9
1944	67.5
2019	67.3
2011	67.2
1945	67.2
2023	66.9
1995	66.9

Coldest
Year	Mean, °F
1968	59.5
1979	60.5
1916	60.6
1906	60.7
1956	60.8
1899	60.9
1918	61.1
1912	61.2
1900	61.2
1954	61.6
More years share the last value

Wettest
Year	Precipitation, in
1904	8.77
1986	8.06
1909	6.73
2016	6.34
1902	6.10
1992	5.80
1951	5.50
2022	5.46
1907	5.36
2014	5.31

Driest
Year	Precipitation, in
1962	0.26
2020	0.31
1924	0.37
2019	0.41
1915	0.54
1976	0.58
1912	0.61
1944	0.67
1978	0.68
2009	0.74
More years share the last value

The hottest, coldest and wettest days

Hottest day: 90°F; 26 August 2026, 3 August 2026, 2 August 2026, 1 August 2026
Coldest night: 45°F; 15 August 2026
Wettest day: 0.39 in; 28 August 2026

Every month, season and year

Months

Seasons

Years

Flagstaff, AZ the day's answers

All-time records

Every answer in words

August 2026 brought 1.55 in of precipitation in Flagstaff, AZ, the driest August since 2025, 28th driest of 128.
The hottest day of August 2026 in Flagstaff, AZ: 90°F on Wednesday 26 August 2026, Monday 3 August 2026, Sunday 2 August 2026 and 1 other day.
The coldest night of August 2026 in Flagstaff, AZ: a low of 45°F on Saturday 15 August 2026.
The wettest day of August 2026 in Flagstaff, AZ: 0.39 in on Friday 28 August 2026.