Pullman, WA: September

30 September 2026: September 2026 averaged 58.1°F in Pullman, WA, the coldest September since 2018, 44th coldest of 122.

September 2026

Mean temperature: 58.1°F; Coldest since 2018; 44th coldest of 122
Precipitation: 1.93 in; Wettest since 2013; 16th wettest of 125

A normal September in Pullman, WA (1991 to 2020): a mean temperature of 59.3°F, between 56.4°F and 62.3°F in eight years of ten and 0.41 in of precipitation, between 0.03 in and 1.29 in in eight years of ten.

The mean temperature of every September in Pullman, WA since 1894: 58.1°F in 2026; the lowest is 51.9°F, in 1926.

Normal range, 56.4 to 62.3°F

Every year, ranked, as a table

Every September in Pullman, WA from 1893 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	58.1	79	70	86	46.2	51	1.93	16	0
2025	66.6	1	80.6	2	52.6	3	0.82	66	0
2024	62.6	10	76.3	24	48.9	12	1.36	28	0
2023	60.1	44	72.1	65	48	23	1.01	45	0
2022	62	14	76.9	19	47.2	37	1.77	19	0
2021	60.1	44	73	55	47.1	38	0.84	64	0
2020	62.2	12	77.5	14	46.8	42	0.17	111	0
2019	59.3	57	70.5	83	48.1	22	1.05	41	0
2018	56.8	89	71	74	42.7	105	0.02	121	0
2017	61.3	27	73.9	46	48.7	16	0.68	73	0
2016	57.8	83	71.1	73	44.5	75	0.36	94	0
2015	57.2	86	71.8	70	42.7	105	0.69	72	0
2014	61	35	76.8	20	45.3	64	0.44	90	0
2013	61.1	31	73.4	50	48.9	12	2.66	8	0
2012	59.3	57	77.2	16	41.4	116	trace	123	0
2011	62.7	8	80.4	3	45	69	0.22	106	1
2010	58.3	73	71.9	68	44.7	74	0.98	47	0
2009	61.4	23	78	12	44.8	72	0.11	115	0
2008	59.2	59	75.3	34	43.1	99	0.36	94	0
2007	56.5	91	72.6	60	40.4	122	0.16	114	0
2006	59.2	59	75.1	38	43.3	96	0.63	77	0
2005	55.5	104	70.3	84	40.7	120	0.35	97	0
2004	56.8	89	69.8	88	43.8	88	0.36	94	0
2003	60	46	74.8	40	45.3	64	0.92	53	0
2002	56.9	88	72.7	58	41.1	119	0.49	84	0
2001	61.4	23	77.1	17	45.7	56	0.37	93	0
2000	55.4	105	68	101	42.8	103	1.77	19	0
1999							0.02	121	4
1998	63.5	6	79.1	7	47.8	27	1.30	32	0
1997	61.7	19	74.9	39	48	23	1.05	41	1
1996	56.1	95	69.6	90	42.4	109	0.96	50	2
1995	61.1	31	75.9	29	45.7	56	0.81	67	2
1994	62.6	10	79.5	5	45.6	59	0.35	97	1
1993	58.7	62	75.4	31	42.4	109	0.04	118	1
1992	57.6	84	70.8	77	44.3	81	1.29	34	0
1991	61.2	29	78.4	11	44	85	0.03	119	0
1990	64.6	4	82.9	1	46.3	49	0.03	119	0
1989	59.8	51	75.5	30	44.2	82	0.48	86	2
1988	58.4	71	73.4	50	43.2	97	0.91	56	1
1987	61.6	21	79	8	44.1	83	0.00	124	0
1986	54.1	115	65	117	43.1	99	2.45	9	2
1985	52.1	121	64.6	119	40.2	123	2.14	12	2
1984	55.8	100	69.3	94	42.3	112	0.97	48	0
1983	54.5	110	68.2	99	40.7	120	0.91	56	0
1982	58.3	73	70.9	76	45.6	59	1.58	23	1
1981	58.5	69	73.9	46	43	102	0.64	75	0
1980	58.2	76	71.2	72	45.1	68	1.35	29	0
1979	61.8	16	76.6	22	47	39	0.31	100	0
1978	55.9	97	67.3	106	44.5	75	1.30	32	0
1977	54.5	110	65	117	43.9	87	2.01	14	0
1976	61.6	21	77	18	46.2	51	0.05	117	0
1975	58.7	62	75.2	36	42.3	112	0.00	124	0
1974	60.2	43	76.6	22	43.7	91	0.20	109	0
1973	58.6	66	70.8	77	46.3	49	1.33	31	0
1972	54.5	110	67	107	42.1	114	1.02	44	0
1971	54.1	115	66.8	110	41.3	117	1.35	29	0
1970	53.6	118	65.5	114	41.6	115	0.97	48	0
1969	60	46	72.7	58	47.3	35	0.92	53	0
1968	58.7	62	70.7	80	46.6	44	2.84	5	1
1967	63.9	5	79.5	5	48.3	18	0.45	89	0
1966	61.4	23	76	27	46.8	42	0.21	107	0
1965	54.4	113	67.5	105	41.2	118	0.27	103	0
1964	55.3	106	68.2	99	42.5	107	1.29	34	0
1963	65.1	3	79.6	4	50.6	4	1.03	43	0
1962	59.2	59	74.2	45	44.1	83	1.77	19	0
1961	53.8	117	67.8	104	39.8	124	1.23	37	0
1960	59.7	52	76.1	25	43.2	97	0.91	56	0
1959	55.7	102	65.8	113	45.6	59	2.17	11	0
1958	58.5	69	71.7	71	45.2	67	0.52	82	0
1957	62.1	13	78.5	10	45.7	56	0.21	107	0
1956	59.7	52	75.2	36	44.4	79	0.55	80	1
1955	58.4	71	72.9	56	43.8	88	1.80	18	0
1954	57	87	70.7	80	43.4	95	0.93	52	0
1953	60.4	40	76.7	21	44	85	0.34	99	1
1952	61.1	31	76.1	25	46	55	0.90	60	0
1951							0.54	81	19
1950							0.30	101	30
1949	61.8	16	73.9	46	49.6	9	0.91	56	0
1948	58.6	66	70.6	82	46.6	44	0.74	69	0
1947	59.9	49	69.7	89	49.7	8	4.04	2	2
1946	58.2	76	68	101	48.2	20	0.83	65	2
1945	56.1	95	65.3	115	46.9	40	2.79	7	0
1944	61.9	15	73.4	50	50.4	5	0.57	79	2
1943							0.40	92	30
1942	60.3	41	72.2	64	48.7	16	0.46	88	1
1941	53.5	119	61	124	46.2	51	2.08	13	3
1940					53.2	2	3.02	4	4
1939	60.5	37	72.1	65	48.8	15	0.25	105	0
1938	66.3	2	77.7	13	54.8	1	0.87	62	0
1937	61.1	31	72.5	61	49.6	9	0.29	102	0
1936	57.9	81	68.6	97	47.3	35	1.26	36	2
1935	62.7	8	75.3	34	50	6	0.26	104	0
1934	56.2	94	66.9	109	45.4	63	0.64	75	0
1933	55.9	97	68	101	43.7	91	1.55	24	0
1932	60	46	73.5	49	46.4	46	0.17	111	0
1931	58.2	76	68.6	97	47.9	25	0.70	71	0
1930	59.6	55	69.6	90	48.9	12			1
1929	55.9	97	66.8	110	45	69			0
1928	60.3	41	72.8	57	47.7	29			0
1927	54.7	108	63	121	46.1	54	4.42	1	2
1926	51.9	122	61.4	123	42.4	109	2.80	6	0
1925	59.7	52	71	74	48.3	18	0.06	116	0
1923	61.3	27	74.4	42	48.2	20	0.17	111	0
1922	61.8	16	74.4	42	49.2	11	0.52	82	0
1921	52.4	120	62	122	42.8	103	1.53	25	0
1920	58.7	62	69.9	87	47.6	30	2.00	15	0
1919	58.6	66	71.9	68	44.5	75	0.49	84	2
1918			78.6	9			0.73	70	4
1917	62.9	7	75.4	31	50	6			2
1916	57.3	85	70.2	85	44.5	75	0.68	73	0
1915	59.9	49	72.3	63	47.5	33	0.63	77	0
1914	54.6	109	64.6	119	44.8	72	1.20	39	2
1913	61.2	29	75.4	31	47.6	30	0.94	51	1
1912	55.2	107	67	107	43.5	94	1.00	46	0
1911	56.5	91	69.4	93	43.7	91	0.92	53	0
1910	57.9	81	70.8	77	44.9	71	0.76	68	0
1909	61.4	23	74.3	44	47.9	25	0.85	63	3
1908	60.6	36	74.8	40	46.4	46	0.90	60	1
1906	60.5	37	73.2	54	47.8	27	0.47	87	1
1905	59.4	56	72.5	61	46.4	46	3.34	3	1
1904			77.5	14			0.20	109	6
1903	55.7	102	66.7	112	44.4	79			3
1902	58.3	73	72.1	65	45.6	59	1.22	38	3
1901									18
1900	55.8	100	69.1	95	42.5	107	1.65	22	0
1899	61.7	19	76	27	47.4	34	1.51	26	0
1898	60.5	37	73.3	53	47.6	30	1.15	40	0
1897	58	80	69.1	95	46.9	40	1.86	17	0
1896	56.4	93	69.6	90	43.1	99	0.43	91	0
1894	54.4	113	65.1	116	43.8	88	1.37	27	0
1893					45.3	64	2.32	10	5

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2025	66.6
1938	66.3
1963	65.1
1990	64.6
1967	63.9
1998	63.5
1917	62.9
2011	62.7
1935	62.7
2024	62.6
More years share the last value

Coldest
Year	Mean, °F
1926	51.9
1985	52.1
1921	52.4
1941	53.5
1970	53.6
1961	53.8
1986	54.1
1971	54.1
1965	54.4
1894	54.4

Wettest
Year	Precipitation, in
1927	4.42
1947	4.04
1905	3.34
1940	3.02
1968	2.84
1926	2.80
1945	2.79
2013	2.66
1986	2.45
1893	2.32

Driest
Year	Precipitation, in
1987	0.00
1975	0.00
2012	trace
2018	0.02
1999	0.02
1991	0.03
1990	0.03
1993	0.04
1976	0.05
1925	0.06

The hottest, coldest and wettest days

Hottest day: 83°F; 21 September 2026
Coldest night: 29°F; 28 September 2026
Wettest day: 0.79 in; 13 September 2026

Every month, season and year

Months

Seasons

Years

Pullman, WA the day's answers

All-time records

Every answer in words

September 2026 brought 1.93 in of precipitation in Pullman, WA, the wettest September since 2013, 16th wettest of 125.
The hottest day of September 2026 in Pullman, WA: 83°F on Monday 21 September 2026.
The coldest night of September 2026 in Pullman, WA: a low of 29°F on Monday 28 September 2026.
The wettest day of September 2026 in Pullman, WA: 0.79 in on Sunday 13 September 2026.