Lander, WY: September

30 September 2026: September 2026 averaged 63.3°F in Lander, WY, the warmest September since 2024, 9th warmest of 135.

September 2026

Mean temperature: 63.3°F; Warmest since 2024; 9th warmest of 135
Precipitation: 2.18 in; Wettest since 2013; 16th wettest of 136

A normal September in Lander, WY (1991 to 2020): a mean temperature of 60.2°F, between 57°F and 63.1°F in eight years of ten and 0.76 in of precipitation, between 0.16 in and 1.81 in in eight years of ten.

The mean temperature of every September in Lander, WY since 1891: 63.3°F in 2026; the highest is 65.3°F, in 2015.

Normal range, 57 to 63.1°F

Every year, ranked, as a table

Every September in Lander, WY from 1891 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	63.3	9	77.7	16	48.8	5	2.18	16	0
2025	62.9	13	77.3	21	48.6	7	1.20	47	0
2024	64.7	3	80.8	2	48.7	6	0.40	99	0
2023	62.5	17	77.4	19	47.6	18	0.56	82	0
2022	64.6	4	79.6	4	49.5	3	1.50	32	3
2021	62.8	14	79.1	9	46.6	25	0.49	89	0
2020	60.1	41	76.1	31	44.1	57	0.66	71	0
2019	60.3	39	75	47	45.7	32	1.48	34	0
2018	61.8	24	78.2	13	45.4	36	0.05	126	0
2017							0.38	101	23
2016	59.3	56	73.2	73	45.4	36	1.68	28	0
2015	65.3	1	81.5	1	49.1	4	0.17	112	0
2014	61	29	75.8	39	46.1	30	1.79	20	0
2013	60.5	36	72.3	85	48.6	7	3.78	7	0
2012	63.2	10	78.6	10	47.7	16	0.35	105	0
2011	61.9	22	77.2	23	46.5	26	0.66	71	0
2010	62.1	21	79.2	5	45	43	0.02	128	0
2009	62.6	16	78.4	11	46.7	24	0.71	68	0
2008	57	79	71.3	96	42.7	72	0.80	63	0
2007	59.5	52	74.4	56	44.5	51	0.66	71	0
2006	56.6	91	70.7	103	42.4	75	1.30	41	0
2005	60.5	36	76.1	31	44.9	46	0.41	98	0
2004	58.6	61	72.3	85	45	43	1.08	50	0
2003	56.8	84	71.3	96	42.3	77	1.06	53	0
2002	60	43	73.6	68	46.3	28	0.37	103	0
2001	63.1	11	78	14	48.2	13	1.29	43	0
2000	57.4	75	72.7	79	42.1	81	1.03	57	0
1999	55	113	68.7	114	41.2	94	2.01	18	0
1998	63.4	8	76.8	27	50	2	1.37	38	0
1997	60.4	38	73.9	62	46.9	23	1.21	44	0
1996	57.6	72	71.7	91	43.5	64	2.23	14	0
1995	59.3	56	72.5	84	46.1	30	1.45	35	0
1994	62.8	14	77.4	19	48.1	14	0.47	93	0
1993	57.2	78	71.4	95	43	68	0.42	97	0
1992	60.2	40	76.1	31	44.3	54	0.01	131	0
1991	60	43	73.7	63	46.2	29	0.43	96	0
1990	64.8	2	79.2	5	50.4	1	1.50	32	0
1989	58.5	65	71.8	90	45.2	41	2.19	15	0
1988	58.6	61	72.6	83	44.7	49	0.91	62	0
1987	60.7	33	75.9	37	45.4	36	0.30	106	0
1986	55.2	107	67.6	121	42.8	69	0.44	94	0
1985	53.2	126	64.7	132	41.7	87	1.74	22	0
1984	55.1	110	68.7	114	41.5	91	1.04	56	0
1983	60.9	31	76.4	29	45.3	40	0.50	88	0
1982	55.2	107	66.5	129	43.9	59	3.83	6	0
1981	62.3	19	77	25	47.6	18	0.61	80	0
1980	59.9	45	75.7	40	44.1	57	0.07	124	0
1979	63.8	5	80.2	3	47.4	20	0.01	131	0
1978	59.3	56	74.4	56	44.2	55	1.17	48	0
1977	59.7	48	75.2	43	44.2	55	0.18	110	0
1976	59.7	48	73.7	63	45.7	32	0.54	85	0
1975	58	69	72.8	77	43.2	66	0.38	101	0
1974	56	101	71.5	94	40.6	101	1.07	52	0
1973	53.8	121	65.7	131	41.8	85	4.68	2	0
1972	56.7	86	71.9	88	41.6	89	0.09	123	0
1971	53.4	124	66.7	128	40.1	107	2.27	13	0
1970	53.4	124	67.6	121	39.1	119	0.66	71	0
1969	63.8	5	79.2	5	48.4	11	0.01	131	0
1968	56.8	84	71.6	93	42.1	81	0.48	92	0
1967	60.6	34	74.2	60	47	21	1.36	39	0
1966	61.4	26	74.5	52	48.3	12	0.71	68	0
1965	47.9	134	60.7	134	35.2	135	2.62	9	0
1964	57.6	72	73.7	63	41.4	92	0.55	84	0
1963	63.5	7	78.4	11	48.6	7	0.19	109	0
1962	59.4	54	75.1	46	43.6	63	0.56	82	0
1961	50.6	133	64	133	37.1	129	1.59	31	0
1960	60.9	31	75.3	42	46.5	26	1.05	55	0
1959	56.5	93	69.3	113	43.8	60	1.21	44	0
1958	59.7	48	75	47	44.4	53	0.15	113	0
1957	56.2	100	70.3	108	42.1	81	1.76	21	0
1956	61.2	28	77.7	16	44.7	49	0.10	121	0
1955	59.6	51	73.6	68	45.5	35	1.30	41	0
1954	61	29	77.3	21	44.8	47	0.18	110	0
1953	61.9	22	78	14	45.7	32	0.13	116	0
1952	63.1	11	79.2	5	47	21	0.01	131	0
1951	55.4	106	70.8	101	40	110	1.06	53	0
1950	54.9	114	67.2	123	42.6	73	4.62	3	0
1949	58.5	65	73.7	63	43.3	65	0.63	78	0
1948	62.5	17	77	25	47.9	15	0.73	67	0
1947	60.6	34	76	36	45.2	41	0.63	78	0
1946	56.5	93	70.7	103	42.3	77	1.44	36	0
1945	53.2	126	68.6	116	37.8	126	1.62	30	0
1944	56.9	82	72.8	77	41	97	2.32	11	0
1943	58.5	65	75.2	43	41.8	85	0.49	89	0
1942	56.9	82	71.2	99	42.6	73	1.69	27	0
1941	52.7	130	67	125	38.3	121	1.74	22	0
1940	61.8	24	75.2	43	48.5	10	1.73	25	0
1939	58.6	61	74.4	56	42.8	69	0.64	77	0
1938	62.2	20	76.7	28	47.7	16	0.65	76	0
1937	60.1	41	76.3	30	43.8	60	0.11	120	0
1936	56.6	91	73.1	74	40	110	0.96	60	0
1935	59.5	52	74.5	52	44.5	51	0.49	89	0
1934	53.1	128	68.1	117	38.1	124	1.67	29	0
1933	59.4	54	75.7	40	43.1	67	0.15	113	0
1932	59.1	59	75.9	37	42.3	77	trace	135	0
1931	59.8	46	74.8	49	44.8	47	1.73	25	0
1930	57.5	74	73.3	72	41.6	89	0.10	121	0
1929	53.6	123	66.5	129	40.7	100	1.82	19	0
1928	57	79	73.5	71	40.5	104	0.02	128	0
1927	55.1	110	67.8	119	42.3	77	3.15	8	0
1926	52.1	131	66.8	126	37.3	128	0.54	85	0
1925	56.7	86	69.6	110	43.8	60	0.94	61	0
1924	55.5	104	70.8	101	40.1	107	0.44	94	0
1923	56.4	95	70	109	42.8	69	5.64	1	0
1922	61.3	27	77.2	23	45.4	36	0.02	128	0
1921	55.1	110	71.9	88	38.3	121	0.13	116	0
1920	56.3	97	71	100	41.7	87	1.31	40	0
1919	59.8	46	74.5	52	45	43	1.01	59	0
1918	56	101	69.5	111	42.4	75	1.03	57	0
1917	57.8	71	74.6	51	41	97	0.05	126	0
1916	55.7	103	73.6	68	37.7	127	0.13	116	0
1915	54.1	119	68	118	40.1	107	4.31	4	0
1914	57.3	76	74.7	50	40	110	trace	135	0
1913	55.2	107	70.5	106	39.8	113	1.43	37	0
1912	47.6	135	59.6	135	35.7	134	3.88	5	0
1911	56.3	97	73.1	74	39.4	115	0.22	108	0
1910	57	79	72.7	79	41.4	92	1.21	44	0
1909	56.4	95	71.7	91	41.1	95	0.76	65	0
1908	56.7	86	74	61	39.4	115	0.66	71	0
1907	56.3	97	72.2	87	40.3	106	0.58	81	0
1906	57.3	76	73.7	63	40.9	99	0.67	70	0
1905	57.9	70	76.1	31	39.7	114	1.11	49	0
1904	56.7	86	74.3	59	39.2	117	0.39	100	0
1903	51.7	132	66.8	126	36.5	133	2.58	10	0
1902	54.2	118	71.3	96	37.1	129	0.75	66	0
1901	53.7	122	70.5	106	36.9	132	0.13	116	0
1900	54.3	117	69.5	111	39.2	117	2.05	17	0
1899	58.6	61	76.1	31	41.1	95	0.54	85	0
1898	55.5	104	72.7	79	38.2	123	0.36	104	0
1897	58.2	68	74.5	52	41.9	84	0.15	113	0
1896	53.9	120	67.1	124	40.6	101	1.08	50	0
1895	54.6	116	70.6	105	38.6	120	1.74	22	0
1894	52.9	129	67.8	119	38	125	2.29	12	0
1893	54.9	114	72.7	79	37.1	129	0.29	107	0
1892	59	60	77.5	18	40.6	101	0.06	125	0
1891	56.7	86	72.9	76	40.5	104	0.77	64	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2015	65.3
1990	64.8
2024	64.7
2022	64.6
1979	63.8
1969	63.8
1963	63.5
1998	63.4
2026	63.3
2012	63.2

Coldest
Year	Mean, °F
1912	47.6
1965	47.9
1961	50.6
1903	51.7
1926	52.1
1941	52.7
1894	52.9
1934	53.1
1985	53.2
1945	53.2

Wettest
Year	Precipitation, in
1923	5.64
1973	4.68
1950	4.62
1915	4.31
1912	3.88
1982	3.83
2013	3.78
1927	3.15
1965	2.62
1903	2.58

Driest
Year	Precipitation, in
1932	trace
1914	trace
1992	0.01
1979	0.01
1969	0.01
1952	0.01
2010	0.02
1928	0.02
1922	0.02
2018	0.05
More years share the last value

The hottest, coldest and wettest days

Hottest day: 88°F; 13 September 2026, 6 September 2026, 5 September 2026, 4 September 2026
Coldest night: 39°F; 15 September 2026
Wettest day: 1.64 in; 19 September 2026

Every month, season and year

Months

Seasons

Years

Lander, WY the day's answers

All-time records

Every answer in words

September 2026 brought 2.18 in of precipitation in Lander, WY, the wettest September since 2013, 16th wettest of 136.
The hottest day of September 2026 in Lander, WY: 88°F on Sunday 13 September 2026, Sunday 6 September 2026, Saturday 5 September 2026 and 1 other day.
The coldest night of September 2026 in Lander, WY: a low of 39°F on Tuesday 15 September 2026.
The wettest day of September 2026 in Lander, WY: 1.64 in on Saturday 19 September 2026.