Riverside, CA

Saturday 3 October 2026: a low of 70°F in Riverside, CA, the warmest 3 October night on record, in 127 years since 1893 (no value for 1896, 1897, 1898 and 4 other years); matching the National Weather Service report.

Saturday 3 October 2026

Saturday 3 October 2026: a high of 105°F in Riverside, CA, the warmest 3 October since 1987 (no value for 2003), 3rd warmest of 126.
No measurable precipitation in Riverside, CA for 26 days to Saturday 3 October 2026.

Every year on this date

Every 3 October high in Riverside, CA since 1893: 105°F in 2026; the highest is 108°F, in 1917.

Every 3 October low in Riverside, CA since 1893: 70°F in 2026; the lowest is 40°F, in 1916.

Above the normal range
In it
Below it
Normal range
This year and the extreme

Every year as a table

Year	High, °F	Low, °F
2026	105	70
2025	79	58
2024	100	66
2023	87	52
2022	88	61
2021	98	62
2020	101	63
2019	86	54
2018	79	63
2017	76	59
2016	78	58
2015	85	60
2014	101	59
2013	77	60
2012	95	64
2011	84	59
2010	87	63
2009	81	52
2008	90	60
2007	92
2006	85	57
2005	84	52
2004	86	55
2003		60
2002	80	48
2001	95	62
2000	82	61
1999	88	54
1998	77	61
1997	87	67
1996	93	55
1995	97	56
1994	75	60
1993	98	60
1992	94	55
1991	98	63
1990	93	61
1989	77	55
1988	93	56
1987	106	63
1986	77	44
1985	101	57
1984	81	55
1983	85	52
1982	85	50
1981	74	59
1980	93	58
1979	95	57
1978	90	60
1977	91	56
1976	79	54
1975	100	60
1974	79	58
1973	75	53
1972	78	51
1971	86	44
1970	85	63
1969	77	54
1968	72	57
1967	84	56
1966	77	60
1965	100	52
1964	97	54
1963	78	61
1962	81	57
1961	100	54
1960	91	53
1959	86	45
1958	103	56
1957	78	54
1956	84	55
1955		44
1954	69	47
1953	94	50
1952	96	55
1951	77	58
1950	97	41
1949	78	48
1948	92	50
1947	98
1946	74	46
1945	100	54
1944	92	45
1943	100	59
1942	86	57
1941	88	59
1940	79	49
1939	78	51
1938	80	46
1937	74	52
1936	70	49
1935	79	43
1934	88	43
1933	104	61
1932	77	55
1931	92	55
1930	83	42
1929	93	58
1928	72	55
1927	89	45
1926	87	53
1925	94	43
1924	86	41
1923	84	47
1922	86	46
1921	78	60
1920	84	45
1919	80	52
1918		66
1917	108	54
1916	64	40
1915	81	48
1914	68	58
1913	80	55
1912	67	52
1911	89	42
1910	92	48
1909	73	49
1908	71	48
1907	85	53
1906	91	52
1905	98	48
1904	92	49
1903	79	43
1902	78	43
1901	79	41
1895	79	54
1894	99	51
1893	90	45

The 20 warmest 3 October highs in Riverside, CA since 1893.
Rank	Year	Value
1	1917	108°F
2	1987	106°F
3	2026	105°F
4	1933	104°F
5	1958	103°F
6	2020	101°F
6	2014	101°F
6	1985	101°F
9	2024	100°F
9	1975	100°F
9	1965	100°F
9	1961	100°F
9	1945	100°F
9	1943	100°F
15	1894	99°F
16	2021	98°F
16	1993	98°F
16	1991	98°F
16	1947	98°F
16	1905	98°F

The 20 coldest 3 October lows in Riverside, CA since 1893.
Rank	Year	Value
1	1916	40°F
2	1950	41°F
2	1924	41°F
2	1901	41°F
5	1930	42°F
5	1911	42°F
7	1935	43°F
7	1934	43°F
7	1925	43°F
7	1903	43°F
7	1902	43°F
12	1986	44°F
12	1971	44°F
12	1955	44°F
15	1959	45°F
15	1944	45°F
15	1927	45°F
15	1920	45°F
15	1893	45°F
20	1946	46°F

The 20 wettest 3 October days in Riverside, CA since 1893.
Rank	Year	Value
1	1912	0.65 in
2	1914	0.39 in
3	1918	0.32 in
4	2018	0.14 in
5	1925	0.08 in
6	1968	0.06 in
7	1921	0.02 in
8	1946	0.01 in
9	1970	trace
9	1908	trace
11	2026	0.00 in
11	2025	0.00 in
11	2024	0.00 in
11	2023	0.00 in
11	2022	0.00 in
11	2021	0.00 in
11	2020	0.00 in
11	2019	0.00 in
11	2017	0.00 in
11	2016	0.00 in

This month, season and year so far

October 2026 so far averaged 84°F in Riverside, CA, the warmest 1 to 3 October since 2020, tied 3rd warmest of 121 (with 2012).
October 2026 so far brought 0.00 in of precipitation in Riverside, CA, tying the record for the driest 1 to 3 October, set in 2025, 2024, 2022 and 93 other years, in 114 years since 1893 (1894 excluded: 3 of 3 days missing; 1896 excluded: 3 of 3 days missing; 1897 excluded: 3 of 3 days missing; 17 more years excluded for missing days); provisional.
Fall 2026 so far averaged 78.6°F in Riverside, CA, the warmest 1 September to 3 October since 2022, 11th warmest of 120.
Fall 2026 so far brought 0.36 in of precipitation in Riverside, CA, the wettest 1 September to 3 October since 2015, 22nd wettest of 121.
2026 so far averaged 71.5°F in Riverside, CA, the warmest 1 January to 3 October on record, in 116 years since 1894 (1896 excluded: 246 of 277 days missing; 1897 excluded: 276 of 276 days missing; 1898 excluded: 276 of 276 days missing; 14 more years excluded for missing days); provisional.
2026 so far brought 3.93 in of precipitation in Riverside, CA, the driest 1 January to 3 October since 2022, 23rd driest of 102.
The 30 days to Saturday 3 October 2026 brought 0.36 in of precipitation in Riverside, CA, the driest 30 days to 3 October since 2025, 100th driest of 121.
The 60 days to Saturday 3 October 2026 brought 0.36 in of precipitation in Riverside, CA, the driest 60 days to 3 October since 2025, 79th driest of 107.
The 90 days to Saturday 3 October 2026 brought 0.36 in of precipitation in Riverside, CA, the driest 90 days to 3 October since 2025, 74th driest of 107.

Daily highs and lows in Riverside, CA, 1 to 3 October 2026, with each date's record range and its 1991 to 2020 normal range.

High
Low
Normal range
Record range

Every day as a table

Day	High, °F	Low, °F	Record high	Record high year	Record low	Record low year	Normal high	Normal low
1 October 2026	96	62	109	1980	39	1930	91	60.5
2 October 2026	105	66	108	1980	39	1950	89	60
3 October 2026	105	70	108	1917	40	1916	86	60

Every year's 1 to 3 October in Riverside, CA, ranked by its mean temperature: October 2026 so far is the tied 3rd warmest of 121.

Above the normal range
Above the normal
Below the normal
Below the normal range
Normal range

Every year, ranked, as a table

Rank	Year	Mean, °F
1	2020	85
2	1987	84.7
3	2026	84
3	2012	84
5	2024	83.5
6	1991	82.7
7	2008	81
7	1980	81
9	2001	80.2
9	1993	80.2
11	1958	78.8
12	2010	78.7
13	1943	78.2
14	1997	77.7
14	1992	77.7
16	2021	77.5
16	2014	77.5
18	1995	76.2
19	2011	75.7
20	1975	75.5
21	1985	75.3
21	1970	75.3
21	1906	75.3
24	2018	75.2
24	1965	75.2
24	1933	75.2
27	1917	75
28	1945	74.8
29	2015	74.7
29	1978	74.7
31	1990	74.3
32	1964	74.2
32	1931	74.2
34	1961	74
35	1952	73.8
36	2022	73.7
37	1999	73.5
38	1979	73.3
38	1895	73.3
40	2000	73
40	1963	73
42	2006	72.7
43	2005	72.5
43	1967	72.5
43	1929	72.5
46	1977	72.2
47	2016	71.5
48	2009	71.3
48	1941	71.3
50	1962	71.2
51	1996	71
52	1956	70.8
52	1948	70.8
54	2025	70.5
54	1974	70.5
54	1934	70.5
54	1910	70.5
58	2013	70.3
59	1905	70
60	1969	69.7
60	1904	69.7
62	1994	69.5
62	1924	69.5
62	1922	69.5
65	2017	69.3
65	1984	69.3
65	1913	69.3
68	1966	69.2
68	1942	69.2
70	1960	69
70	1938	69
72	1939	68.8
73	1925	68.5
74	1953	68.2
75	2019	68
75	1972	68
77	1998	67.7
77	1951	67.7
79	1982	67.5
80	1894	67.3
81	1989	67.2
81	1940	67.2
81	1920	67.2
81	1893	67.2
85	1944	66.8
86	1949	66.7
86	1926	66.7
88	1976	66.5
89	1983	66.3
89	1932	66.3
91	1981	66.2
91	1973	66.2
91	1907	66.2
94	1950	65.7
95	1957	65.5
96	1935	65.3
97	1959	65.2
97	1936	65.2
97	1923	65.2
100	2023	65
100	1946	65
100	1914	65
103	1927	64.8
103	1912	64.8
103	1908	64.8
106	1911	64.7
107	1915	64.3
108	1968	64.2
108	1937	64.2
110	2002	63.8
111	1971	63.5
112	1928	63.3
113	1909	62.7
114	1986	62
115	1902	61.7
116	1919	61.2
117	1901	61
118	1903	60.2
119	1954	60
120	1930	58.3
121	1916	55.2

This year so far

Riverside, CA has had 106 days at 90°F or above in 2026 through 3 October, the most by that date since 2020, 8th most of 118.
Riverside, CA has had 34 days at 100°F or above in 2026 through 3 October, the most by that date since 2024, tied 9th most of 118 (with 1990 and 1913).

Records of the coming dates

Riverside, CA on 5 October: record high 104°F (1943), record low 38°F (1916).
Riverside, CA on 6 October: record high 104°F (1996), record low 39°F (1913).

The station

Daily records for Riverside, CA run from 1893 to 3 October 2026, with 3120 days missing; current station RIVERSIDE MUNICIPAL AP.

Our calculation from NOAA records for Riverside, CA, 1893 to 2026. Preliminary until NOAA's final data.

All-time records