Lancaster, CA: September

30 September 2026: September 2026 averaged 74.3°F in Lancaster, CA, the warmest September since 2025, tied 35th warmest of 81 (with 1945).

September 2026

Mean temperature: 74.3°F; Warmest since 2025; 35th warmest of 81
Precipitation: 0.32 in; Wettest since 2022; 13th wettest of 81

A normal September in Lancaster, CA (1991 to 2020): a mean temperature of 74.4°F, between 71.7°F and 76.7°F in eight years of ten and 0.00 in of precipitation, between 0.00 in and 0.65 in in eight years of ten.

The mean temperature of every September in Lancaster, CA since 1945: 74.3°F in 2026; the highest is 79.4°F, in 2022.

Normal range, 71.7 to 76.7°F

Every year, ranked, as a table

Every September in Lancaster, CA from 1945 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	74.3	35	89.7	54	58.9	14	0.32	13	0
2025	75.3	25	90	52	60.6	7	0.06	29	0
2024	76	16	94.6	15	57.3	33	trace	38	0
2023	72.8	52	87.6	70	57.9	19	trace	38	0
2022	79.4	1	95.1	11	63.7	1	0.44	10	0
2021	76.3	11	93.9	21	58.8	15	trace	38	0
2020	76.7	8	97.6	2	55.8	45	0.00	54	0
2019	73.4	45	89.4	56	57.3	33	0.00	54	0
2018	76.2	13	94.2	19	58.2	18	0.00	54	0
2017	73	48	88.5	64	57.4	31	0.07	28	0
2016	72.7	54	90.2	49	55.2	52	0.00	54	0
2015	77	5	92.8	28	61.2	3	0.64	7	0
2014	75.7	21	92.5	29	58.8	15	trace	38	0
2013	74.6	34	90.8	41	58.5	17	trace	38	0
2012	78.2	2	95.8	8	60.5	8	0.02	33	0
2011	76.3	11	94.8	14	57.8	23	0.01	36	0
2010	73.6	40	93.7	22	53.5	67	trace	38	0
2009	76.5	10	95.3	10	57.7	26	0.00	54	0
2008	75.8	19	94.3	16	57.4	31	0.02	33	0
2007	71.4	66	87.5	71	55.2	52	0.20	19	0
2006	72.5	58	92	33	53.1	69	0.00	54	0
2005	69.3	77	86.4	73	52.2	75	0.80	5	0
2004	73.1	47	90.8	41	55.3	50	trace	38	0
2003	77	5	96.5	4	57.6	27	trace	38	0
2002	74.9	32	92	33	57.8	23	0.01	36	0
2001	75.7	21	94.9	12	56.5	41	0.00	54	0
2000	71.9	62	88.7	62	55	57	0.00	54	0
1999	73.7	39	91	38	56.5	41	trace	38	0
1998	70.3	73	83	78	57.5	29	0.73	6	0
1997	75.4	24	90.2	49	60.7	6	0.87	4	0
1996	73	48	88.4	66	57.5	29	0.00	54	0
1995	76.1	15	92.4	30	59.7	10	0.00	54	0
1994	73.2	46	88.6	63	57.8	23	trace	38	0
1993	71.7	63	89.4	56	54	63	0.00	54	0
1992	74.1	37	90.9	39	57.3	33	0.00	54	0
1991	75.3	25	91.2	36	59.4	11	0.09	27	0
1990	73.5	43	89	60	57.9	19	trace	38	0
1989	71.4	66	88.4	66	54.4	61	0.19	21	0
1988	72.6	56	90.4	47	54.7	58	0.00	54	0
1987	73.6	40	90.9	39	56.2	44	0.14	24	0
1986	66.7	81	80.6	80	52.8	73	trace	38	0
1985	67.4	80	80.2	81	54.6	59	0.23	16	0
1984	76	16	90.8	41	61.1	5	0.22	18	0
1983	75.8	19	90.2	49	61.4	2	0.34	12	0
1982	70.2	74	83.5	77	56.9	39	0.41	11	0
1981	75.9	18	90.6	45	61.2	3	0.20	19	0
1980	71.5	64	88.5	64	54.4	61	0.00	54	0
1979	77.2	3	94.3	16	60.1	9	trace	38	0
1978	69.3	77	84.5	75	54	63	0.88	3	0
1977	72	61	86.4	73	57.6	27	0.00	54	0
1976	70.9	70	82.6	79	59.2	13	1.28	2	0
1975	75	28	92.1	32	57.9	19	0.19	21	0
1974	77.1	4	94.9	12	59.4	11	trace	38	0
1972	70.4	72	87.8	68	53	71	0.00	54	0
1971	72.5	58	89.9	53	55.2	52	0.12	25	0
1970	70.1	75	89.1	59	51.2	79	0.00	54	0
1969	75	28	93.5	23	56.6	40	0.02	33	0
1968	72.3	60	90.8	41	53.8	65	0.00	54	0
1967	73.6	40	89.3	58	57.9	19	0.49	9	0
1966	72.6	56	90.6	45	54.5	60	0.26	14	0
1965	67.5	79	83.7	76	51.3	78	0.18	23	0
1964	70.5	71	90.3	48	50.7	80	trace	38	0
1963	73.8	38	91.2	36	56.5	41	1.82	1	0
1962	73.5	43	93.5	23	53.5	67	0.00	54	0
1961	69.6	76	87.7	69	51.5	76	0.00	54	0
1960	76.8	7	95.9	7	57.3	33	0.00	54	1
1959	71.5	64	87.2	72	55.8	45	0.64	7	0
1958	72.7	54	92.2	31	53.1	69	0.23	16	0
1957	71.3	68	89.7	54	52.9	72	0.06	29	0
1956	76.2	13	96.7	3	55.7	47	0.00	54	0
1955	74.9	32	94.3	16	55.6	48	0.00	54	0
1954	72.8	52	93	26	52.6	74	0.00	54	0
1953	75	28	96.3	5	53.7	66	0.00	54	0
1952	75	28	92.9	27	57	37	0.12	25	0
1951	76.7	8	97.7	1	55.6	48	0.00	54	0
1950	73	48	89	60	57	37	0.04	31	0
1949	75.3	25	95.4	9	55.1	55	0.00	54	0
1948	72.9	51	94.1	20	51.5	76	0.00	54	1
1947	75.5	23	96.1	6	55.1	55	trace	38	1
1946	71.2	69	91.7	35	50.7	80	0.04	31	0
1945	74.3	35	93.3	25	55.3	50	0.26	14	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2022	79.4
2012	78.2
1979	77.2
1974	77.1
2015	77
2003	77
1960	76.8
2020	76.7
1951	76.7
2009	76.5

Coldest
Year	Mean, °F
1986	66.7
1985	67.4
1965	67.5
2005	69.3
1978	69.3
1961	69.6
1970	70.1
1982	70.2
1998	70.3
1972	70.4

Wettest
Year	Precipitation, in
1963	1.82
1976	1.28
1978	0.88
1997	0.87
2005	0.80
1998	0.73
2015	0.64
1959	0.64
1967	0.49
2022	0.44

Driest
Year	Precipitation, in
2020	0.00
2019	0.00
2018	0.00
2016	0.00
2009	0.00
2006	0.00
2001	0.00
2000	0.00
1996	0.00
1995	0.00
More years share the last value

The hottest, coldest and wettest days

Hottest day: 105°F; 10 September 2026
Coldest night: 47°F; 19 September 2026
Wettest day: 0.32 in; 6 September 2026

Every month, season and year

Months

Seasons

Years

Lancaster, CA the day's answers

All-time records

Every answer in words

September 2026 brought 0.32 in of precipitation in Lancaster, CA, the wettest September since 2022, 13th wettest of 81.
The hottest day of September 2026 in Lancaster, CA: 105°F on Thursday 10 September 2026.
The coldest night of September 2026 in Lancaster, CA: a low of 47°F on Saturday 19 September 2026.
The wettest day of September 2026 in Lancaster, CA: 0.32 in on Sunday 6 September 2026.