Ontario, OR: Fall

9 October 2026: Fall 2026 so far averaged 62.7°F in Ontario, OR, the warmest 1 September to 9 October since 2025, tied 23rd warmest of 69 (with 2012, 2009, 2002 and 2 other years).

Fall 2026 so far, to 9 October 2026

Mean temperature: 62.7°F; Warmest since 2025; 23rd warmest of 69
Precipitation: 0.41 in; Driest since 2024; 38th driest of 78

A normal 1 September to 9 October in Ontario, OR (1991 to 2020): 0.32 in of precipitation, between 0.08 in and 1.04 in in eight years of ten.

The mean temperature of every 1 September to 9 October in Ontario, OR since 1945: 62.7°F in 2026; the highest is 68°F, in 2022.

Every year, ranked, as a table

Every 1 September to 9 October in Ontario, OR 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	62.7	23	79.5	32	45.9	25	0.41	41	0
2025	65.5	7	81.1	19	50	4	0.64	30	0
2024	66.6	2	84.4	8	48.8	7	0.12	62	0
2023	65.4	8	80.4	27	50.4	1	0.37	44	1
2022	68	1	85.7	4	50.2	2	trace	75	0
2021	63.5	17	80.9	20	46.1	23	0.28	50	0
2020	64.2	13	83.1	9	45	32	0.08	66	1
2019	62	35	76.6	62	47.4	11	1.45	5	0
2018	62.1	34	77.6	50	46.6	17	0.92	13	0
2017	61.8	36	76.5	64	47.1	15	0.40	42	0
2016	61.6	40	77.6	50	45.7	27	0.07	68	0
2015	64	14	80.5	26	47.4	11	0.50	35	0
2014	64.9	10	80.9	20	48.9	6	0.42	39	0
2013	62.4	30	75.6	68	49.2	5	1.16	9	0
2012	62.7	23	80.7	23	44.6	35	0.08	66	0
2011	65.3	9	82.1	14	48.5	8	0.73	21	0
2010	63.8	15	79.9	29	47.6	9	0.17	57	0
2009	62.7	23	79.3	35	46.2	19	0.15	59	0
2008	61.7	39	77.5	54	45.8	26	1.40	6	0
2007	60.9	46	76.3	66	45.6	28	0.96	12	0
2006	61.8	36	78.6	43	45.1	30	0.42	39	1
2005	59.3	63	75.2	69	43.3	49	0.81	18	1
2004	61.4	41	76.8	59	46.1	23	0.11	64	0
2003	63.8	15	80.6	25	47	16	0.14	60	0
2002	62.7	23	79.2	36	46.2	19	0.26	52	0
2001	63.4	18	80.7	23	46.2	19	0.14	60	1
2000	59.8	56	75.8	67	43.9	41	0.32	47	0
1999	60.9	46	77.8	47	44.1	37	trace	75	0
1998	64.8	11	79.5	32	50.1	3	0.55	34	0
1997	63	20	78.5	44	47.6	9			1
1996			78.9	39					6
1995			78.8	41			0.05	71	5
1994			81.2	18			0.45	37	4
1993					42.3	60			6
1992					42.3	60	0.21	54	5
1991					43.4	48	0.28	50	9
1990					46.4	18	0.02	74	6
1989					42.6	55	1.52	4	8
1988					41	67	0.06	69	7
1987					42.1	64	0.00	78	6
1986					42.4	59	1.36	8	6
1985					40.4	71	1.61	3	8
1984	61.2	43	79.6	31	42.8	52	0.06	69	0
1983	59.6	57	76.6	62	42.8	52	0.22	53	1
1982	58.1	67	75	70	41.2	66	0.76	19	0
1981	60.5	52	78.2	46	42.7	54	0.82	17	0
1980	62.7	23	80.3	28	45.1	30	1.91	2	0
1979	65.7	5	85.9	2	45.5	29	0.12	62	0
1978	59.4	62	77.7	49	41	67	0.69	26	1
1977	60.2	53	76.8	59	43.6	44	0.73	21	0
1976	61.8	36	79.5	32	44.1	37	1.00	11	0
1975	63	20	82.9	10	43.1	50	0.74	20	0
1974	61.3	42	82.5	12	40.1	74	0.11	64	0
1973	60.7	49	78.8	41	42.5	57	0.90	14	0
1972	59.5	59	79	38	39.9	75	0.32	47	0
1971	59.1	64	78.9	39	39.3	77	0.21	54	0
1970	58	68	76.8	59	39.3	77	1.07	10	0
1969	62.3	32	80.9	20	43.7	42	0.57	33	0
1968	60.8	48	79.1	37	42.5	57	0.05	71	0
1967	65.7	5	85.3	6	46.2	19	1.38	7	0
1966	66.3	3	85.4	5	47.3	13	0.35	45	0
1965	59.5	59	78.4	45	40.6	70	0.17	57	0
1964	60	54	79.7	30	40.3	72	0.32	47	0
1963	66.3	3	85.3	6	47.3	13	0.65	29	0
1962	62.4	30	82.1	14	42.6	55	0.70	25	0
1961	58.9	66	77.1	57	40.7	69	0.71	24	0
1960	64.4	12	85.8	3	43.1	50	0.73	21	0
1959	59.5	59	74.5	71	44.6	35	3.23	1	0
1958	62.6	29	81.5	17	43.7	42	0.47	36	0
1957	62.2	33	82.2	13	42.2	62	0.84	16	0
1956	62.8	22	86	1	39.6	76	0.04	73	0
1954	59.6	57	77	58	42.2	62	0.39	43	0
1953	62.7	23	81.9	16	43.5	46	trace	75	0
1952	63.3	19	82.6	11	44.1	37	0.58	32	0
1951	60.6	50	77.6	50	43.5	46	0.66	28	0
1950	60.6	50	77.2	55	44	40	0.18	56	0
1949	61.2	43	77.6	50	44.8	34	0.61	31	0
1948	60	54	76.4	65	43.6	44	0.35	45	0
1947	61	45	77.2	55	44.9	33	0.68	27	0
1946	57.3	69	73.3	72	41.3	65	0.85	15	0
1945	59	65	77.8	47	40.2	73	0.44	38	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2022	68
2024	66.6
1966	66.3
1963	66.3
1979	65.7
1967	65.7
2025	65.5
2023	65.4
2011	65.3
2014	64.9

Coldest
Year	Mean, °F
1946	57.3
1970	58
1982	58.1
1961	58.9
1945	59
1971	59.1
2005	59.3
1978	59.4
1972	59.5
1965	59.5
More years share the last value

Wettest
Year	Precipitation, in
1959	3.23
1980	1.91
1985	1.61
1989	1.52
2019	1.45
2008	1.40
1967	1.38
1986	1.36
2013	1.16
1970	1.07

Driest
Year	Precipitation, in
1987	0.00
2022	trace
1999	trace
1953	trace
1990	0.02
1956	0.04
1995	0.05
1968	0.05
1988	0.06
1984	0.06

The hottest, coldest and wettest days

Hottest day: 89°F; 24 September 2026
Coldest night: 37°F; 15 September 2026
Wettest day: 0.36 in; 3 September 2026

Every month, season and year

Months

Seasons

Years

Ontario, OR the day's answers

All-time records

Every answer in words

Fall 2026 so far brought 0.41 in of precipitation in Ontario, OR, the driest 1 September to 9 October since 2024, 38th driest of 78.
The hottest day of fall 2026 so far in Ontario, OR: 89°F on Thursday 24 September 2026.
The coldest night of fall 2026 so far in Ontario, OR: a low of 37°F on Tuesday 15 September 2026.
The wettest day of fall 2026 so far in Ontario, OR: 0.36 in on Thursday 3 September 2026.