Riverside, CA: October

9 October 2026: October 2026 so far averaged 84.9°F in Riverside, CA, the warmest 1 to 9 October on record, in 113 years since 1893 (1896 excluded: 9 of 9 days missing; 1897 excluded: 9 of 9 days missing; 1898 excluded: 9 of 9 days missing; 18 more years excluded for missing days); provisional.

October 2026 so far, to 9 October 2026

Mean temperature: 84.9°F; Warmest on record; Warmest of 113, provisional
Precipitation: 0.00 in; Ties the record; Driest of 114, provisional

A normal 1 to 9 October in Riverside, CA (1991 to 2020): 0.00 in of precipitation, between 0.00 in and 0.17 in in eight years of ten.

The mean temperature of every 1 to 9 October in Riverside, CA since 1893: 84.9°F in 2026, the highest of them all.

Every year, ranked, as a table

Every 1 to 9 October in Riverside, CA 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	84.9	1	101.1	1	68.7	1	0.00	39	0
2025	69.3	55	82	82	56.7	39	0.06	20	0
2024	81.4	2	99.7	2	63.1	2	0.00	39	0
2023	74.6	14	90.7	24	58.4	22	trace	35	0
2022	75.4	11	88.2	39	62.6	4	0.00	39	0
2021	71.9	33	84.7	63	59.1	18	0.21	10	0
2020	78.9	5	94.8	11	63.1	2	0.00	39	0
2019	70.4	47	88	41	52.8	64	0.00	39	0
2018	70.9	44	81.1	92	60.8	12	0.30	8	0
2017	71.7	34	86.4	49	56.9	34	0.00	39	0
2016	72.8	25	87.6	45	58	24	0.00	39	0
2015	73.6	17	85.8	57	61.4	7	0.16	13	0
2014	78.2	6	95.1	10	61.3	9	0.00	39	0
2013	69	60	82.4	77	55.6	45	0.30	8	0
2012	75.3	12	89.4	28	61.2	10	trace	35	0
2011	66.9	79	79.6	100	54.2	58	0.46	5	0
2010	69.7	51	81.1	92	58.2	23	0.05	22	0
2009	65.6	90	78.6	105	52.6	67	0.00	39	0
2008							0.00	39	2
2007							0.00	39	4
2006							0.00	39	1
2005	72.2	32	86.6	48	57.8	26	0.00	39	0
2004							0.00	39	2
2003					60.2	14	0.00	39	2
2002	68.6	64	84.3	67	52.8	64	0.00	39	0
2001	72.8	25	86.4	49	59.2	17	0.00	39	0
2000	70	49	79.7	99	60.3	13	0.05	22	0
1999	73.3	19	91.7	19	54.9	48	0.00	39	0
1998	68.4	65	82.4	77	54.4	56	0.00	39	0
1997	72.8	25	83.6	72	62	5	0.00	39	0
1996	77.3	7	95.9	7	58.8	21	0.00	39	0
1995	73.2	21	90.1	26	56.3	42	0.00	39	0
1994	68.2	66	81.7	86	54.7	54	0.09	19	0
1993	72.9	24	86.2	53	59.6	16	0.00	39	0
1992							0.00	39	1
1991	80	4	98.6	4	61.4	7	0.00	39	0
1990	72.8	25	88.6	37	57	31	0.00	39	0
1989	71.7	34	88.7	34	54.8	51	0.00	39	0
1988					56.7	39	0.00	39	1
1987	80.1	3	99	3	61.2	10	0.00	39	0
1986	67.1	76	83.6	72	50.7	77	0.00	39	0
1985	72.4	30	88	41	56.8	36	0.00	39	0
1984					54.6	55	0.00	39	1
1983	69.3	55	81	94	57.6	28	1.65	1	0
1982	67.8	68	84.2	68	51.4	74	0.00	39	0
1981	67.8	68	78.8	104	56.8	36	0.13	15	0
1980	76.6	9	95.4	8	57.7	27	0.00	39	0
1979	72.8	25	88.8	33	56.9	34	0.00	39	0
1978	74.4	15	88.7	34	60.1	15	0.00	39	0
1977	73.6	17	89.2	29	58	24	0.00	39	0
1976	71.4	37	87.9	43	54.9	48	0.05	22	0
1975	71.6	36	88.3	38	54.8	51	0.01	33	0
1974	67.5	73	78	107	57	31	0.01	33	0
1973	63.9	103	76.4	111	51.3	75	0.02	28	0
1972	69.3	55	82	82	56.7	39	0.00	39	0
1971	71.2	39	92.1	17	50.3	79	0.00	39	0
1970	70.4	47	85.9	56	54.9	48	0.02	28	0
1969	67.1	76	85.3	60	48.9	92	0.00	39	0
1968	65	97	75.2	113	54.8	51	0.06	20	0
1967	71.1	41	88.2	39	53.9	60	0.00	39	0
1966	69.4	53	81.9	84	57	31	0.15	14	0
1965	71.1	41	89.9	27	52.2	68	0.00	39	0
1964	77.3	7	97.1	6	57.6	28	0.00	39	0
1963	71.2	39	83.6	72	58.9	20	0.00	39	0
1962	66.8	80	80.6	96	53.1	63	0.00	39	0
1961					50.7	77	0.00	39	1
1960	71	43	86.1	55	55.9	44	0.00	39	0
1959	65.7	88	83.7	71	47.8	106	0.00	39	0
1958	73.7	16	91.2	21	56.2	43	0.00	39	0
1957	64.9	99	80.9	95	48.9	92	0.00	39	0
1956	67.7	71	80.4	98	55	47	0.19	12	0
1955					45.8	116	0.00	39	1
1954	62.9	109	79.2	102	46.7	111	0.00	39	0
1953	73.2	21	95.3	9	51.1	76	0.00	39	0
1952	72.3	31	92.3	16	52.2	68	0.00	39	0
1951	68.9	62	87.8	44	50.1	81	0.00	39	0
1950	67.7	71	91.2	21	44.2	119	0.00	39	0
1949	62.4	111	76.2	112	48.6	96	0.02	28	0
1948	69.1	59	90.2	25	47.9	105	0.00	39	0
1947			86.3	51			0.00	39	2
1946	63.4	106	79.4	101	47.4	108			0
1945	70.8	45	89	31	52.7	66	0.02	28	0
1944	66.1	85	85.7	59	46.6	112	0.00	39	0
1943	76.6	9	94.1	13	59	19	0.00	39	0
1942	69.9	50	85.8	57	54.1	59	0.00	39	0
1941	66.8	80	83.9	70	49.8	83	0.00	39	0
1940	67.2	75	84.6	64	49.9	82	0.00	39	0
1939	63.5	105	77.2	109	49.8	83	0.04	27	0
1938	64.6	100	80.6	96	48.6	96	0.00	39	0
1937	65	97	83.1	75	46.9	109	0.00	39	0
1936	69.2	58	88.7	34	49.7	85	0.00	39	0
1935	65.2	93	81.6	88	48.8	95	0.05	22	0
1934					49.7	85	0.12	16	1
1933	75.3	12	93.2	15	57.3	30	trace	35	0
1932	67.9	67	81.4	89	54.4	56	0.63	4	0
1931	69	60	84.6	64	53.4	62	0.38	7	0
1930	66.8	80	85.3	60	48.2	102	0.10	17	0
1929	71.4	37	89.1	30	53.8	61	0.00	39	0
1928	66.8	80	85.2	62	48.3	101	0.00	39	0
1927	64.6	100	82.7	76	46.4	113	0.00	39	0
1926	69.7	51	89	31	50.3	79			0
1925	65.1	95	81.2	91	48.9	92			0
1924	65.1	95	81.7	86	48.4	98			0
1923	63.4	106	77.8	108	49	91			0
1922	67.5	73	87.4	46	47.6	107			0
1921					56.8	36			1
1920	65.8	87	82.3	81	49.2	90			0
1919	63.2	108	81.4	89	45	117			0
1918					61.8	6			1
1917	73.3	19	98.1	5	48.4	98			0
1916	54.6	113	65.8	115	43.3	121	0.90	2	0
1915	66.5	84	91	23	42	122			0
1914	66	86	76.7	110	55.3	46	0.39	6	0
1913	65.3	92	82.4	77	48.2	102	0.00	39	0
1912	60.6	112	72.7	114	48.4	98	0.78	3	0
1911	65.6	90	86.2	53	45	117	0.00	39	0
1910	73.1	23	94.6	12	51.6	71	0.02	28	0
1909	64.3	102	79.1	103	49.4	88			0
1908	67.8	68	86.3	51	49.3	89	trace	35	0
1907	67	78	82.4	77	51.6	71	0.10	17	0
1906	70.7	46	93.4	14	48	104			0
1905			92.1	17			0.00	39	1
1904					51.6	71	0.20	11	1
1903	63.9	103	78.2	106	49.7	85	0.05	22	0
1902	62.9	109	81.9	84	44	120	0.00	39	0
1901	65.2	93	84.1	69	46.3	115	0.00	39	0
1895	69.4	53	86.9	47	51.9	70	0.00	39	0
1894	68.9	62	91.3	20	46.4	113			0
1893	65.7	88	84.4	66	46.9	109	0.00	39	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2026	84.9
2024	81.4
1987	80.1
1991	80
2020	78.9
2014	78.2
1996	77.3
1964	77.3
1980	76.6
1943	76.6

Coldest
Year	Mean, °F
1916	54.6
1912	60.6
1949	62.4
1954	62.9
1902	62.9
1919	63.2
1946	63.4
1923	63.4
1939	63.5
1973	63.9
More years share the last value

Wettest
Year	Precipitation, in
1983	1.65
1916	0.90
1912	0.78
1932	0.63
2011	0.46
1914	0.39
1931	0.38
2018	0.30
2013	0.30
2021	0.21

Driest
Year	Precipitation, in
2026	0.00
2024	0.00
2022	0.00
2020	0.00
2019	0.00
2017	0.00
2016	0.00
2014	0.00
2009	0.00
2008	0.00
More years share the last value

The hottest, coldest and wettest days

Hottest day: 105°F; 3 October 2026, 2 October 2026
Coldest night: 62°F; 1 October 2026

Every month, season and year

Months

Seasons

Years

Riverside, CA the day's answers

All-time records

Every answer in words

October 2026 so far brought 0.00 in of precipitation in Riverside, CA, tying the record for the driest 1 to 9 October, set in 2024, 2022, 2020 and 72 other years, in 114 years since 1893 (1894 excluded: 9 of 9 days missing; 1896 excluded: 9 of 9 days missing; 1897 excluded: 9 of 9 days missing; 17 more years excluded for missing days); provisional.
The hottest day of October 2026 so far in Riverside, CA: 105°F on Saturday 3 October 2026 and Friday 2 October 2026.
The coldest night of October 2026 so far in Riverside, CA: a low of 62°F on Thursday 1 October 2026.