Ontario, OR: 2026

9 October 2026: 2026 so far averaged 58.2°F in Ontario, OR, the warmest 1 January to 9 October since 2024, tied 7th warmest of 67 (with 2018).

2026 so far, to 9 October 2026

Mean temperature: 58.2°F; Warmest since 2024; 7th warmest of 67
Precipitation: 6.57 in; Wettest since 2025; 33rd wettest of 73

The mean temperature of every 1 January to 9 October in Ontario, OR since 1946: 58.2°F in 2026; the highest is 59.6°F, in 2021.

Every year, ranked, as a table

Every 1 January 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	58.2	7	72.2	19	44.2	9	6.57	33	0
2025	57.8	14	71.2	29	44.4	8	8.01	12	0
2024	59.1	3	73.1	8	45.1	4	7.50	22	0
2023	58.1	9	70.9	30	45.3	1	9.30	5	1
2022	57.8	14	71.6	26	44.1	11	4.27	62	0
2021	59.6	1	73.9	4	45.3	1	5.13	52	0
2020	58.4	5	72.8	12	44	13	7.05	26	1
2019	58	12	70.9	30	45.2	3	11.33	1	0
2018	58.2	7	71.8	23	44.7	7	5.17	51	1
2017	55.6	40	68.5	54	42.8	19	9.89	4	2
2016	57.9	13	71.6	26	44.2	9	2.64	72	0
2015	59.2	2	73.4	5	45	5	5.29	49	0
2014	57.3	18	70.4	35	44.1	11	5.96	44	0
2013	56.2	31	69.6	44	42.7	20	3.77	67	0
2012	57.4	16	71.7	25	43	17	5.83	46	1
2011	54.4	54	67.1	68	41.8	29	7.85	15	0
2010	55.4	44	68.3	59	42.4	25	7.62	20	0
2009	55.4	44	68.5	54	42.3	26	6.32	38	1
2008	54.5	52	67.9	64	41.2	40	4.19	64	0
2007	57.4	16	71.8	23	43	17	3.74	68	0
2006	56.9	22	70.5	34	43.4	16	7.98	14	1
2005	54.8	49	68.9	49	40.8	46	7.14	25	8
2004	55.1	46	68.2	62	41.8	29	6.82	29	9
2003	58.5	4	71.9	22	45	5	6.01	43	5
2002	56.2	31	69.8	42	42.5	23	3.33	70	0
2001	55.6	40	68.9	49	42.3	26	4.65	58	3
2000	56.8	24	70	40	43.5	15	7.44	24	1
1999	54.4	54	67.5	67	41.4	34	5.33	48	5
1998	56.5	27	68.9	49	44	13			5
1997									135
1996			70.3	37					35
1995			69.3	47			4.96	53	41
1994			73.2	6	41.3	37			33
1993					38.1	73			38
1992					42.6	21			43
1991					40.6	51	6.07	42	44
1990					42.5	23	5.62	47	44
1989					37.6	75	9.20	7	49
1988					40.2	56	3.84	66	54
1987					40.7	49	4.82	55	43
1986					41.3	37	6.24	40	47
1985	53.1	64	68.4	57	38.1	73	5.21	50	21
1984	54.1	58	67.7	65	40	58	6.26	39	9
1983	55.7	39	69.5	45	41.7	31	10.25	2	11
1982	52.9	66	67	69	38.6	71	6.94	27	7
1981	56.3	29	70.9	30	41.6	32	7.57	21	0
1980	55.6	40	70.2	38	40.9	44	7.66	19	0
1979	54.9	48	70	40	39.7	62	6.54	34	2
1978	56	35	70.7	33	41.3	37	9.15	9	2
1977	54.3	57	69.5	45	39.1	65	4.51	59	1
1976	53.8	62	68.9	49	38.6	71	6.33	37	2
1975	54	60	68.1	63	39.9	60	7.79	17	0
1974	56.1	34	72.1	21	40.1	57	3.01	71	0
1973	57.2	20	73.2	6	41.2	40	4.85	54	0
1972	56.2	31	72.4	16	40	58	4.51	59	0
1971	57.3	18	73	9	41.4	34	4.11	65	3
1970	56.3	29	72.8	12	39.9	60	9.01	10	1
1969	56.4	28	72.2	19	40.6	51	8.28	11	0
1968	56.7	26	72.6	14	40.7	49	6.38	36	2
1967	58.1	9	74.1	2	42.2	28	7.49	23	0
1966	58.1	9	75.4	1	40.8	46	2.51	73	0
1965	56	35	71.4	28	40.6	51	6.60	32	1
1964	53	65	68.3	59	37.6	75	7.80	16	0
1963	56.8	24	72.4	16	41.2	40	6.79	30	2
1962	54.6	51	70.4	35	38.9	67	6.62	31	0
1961	58.3	6	74.1	2	42.6	21	4.20	63	1
1960	56	35	72.3	18	39.6	63	7.76	18	2
1959	56.9	22	72.6	14	41.1	43	8.00	13	0
1958	57.1	21	72.9	10	41.5	33	9.16	8	2
1957	54.5	52	70.1	39	39	66	10.19	3	1
1956	55.9	38	72.9	10	38.8	69	5.93	45	0
1954	55.1	46	69.3	47	40.9	44	4.41	61	0
1953	55.5	43	69.7	43	41.4	34	9.28	6	0
1952	54.1	58	68.5	54	39.4	64	6.18	41	4
1951	54.4	54	68.4	57	40.5	55	6.94	27	0
1950	52.7	67	66.7	70	38.7	70	6.46	35	0
1949	53.6	63	68.3	59	38.9	67	3.41	69	0
1948	53.9	61	67.6	66	40.8	46	4.76	56	8
1947									90
1946	54.7	50	68.9	49	40.6	51	4.66	57	1
1945									181

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2021	59.6
2015	59.2
2024	59.1
2003	58.5
2020	58.4
1961	58.3
2026	58.2
2018	58.2
2023	58.1
1967	58.1
More years share the last value

Coldest
Year	Mean, °F
1950	52.7
1982	52.9
1964	53
1985	53.1
1949	53.6
1976	53.8
1948	53.9
1975	54
1984	54.1
1952	54.1

Wettest
Year	Precipitation, in
2019	11.33
1983	10.25
1957	10.19
2017	9.89
2023	9.30
1953	9.28
1989	9.20
1958	9.16
1978	9.15
1970	9.01

Driest
Year	Precipitation, in
1966	2.51
2016	2.64
1974	3.01
2002	3.33
1949	3.41
2007	3.74
2013	3.77
1988	3.84
1971	4.11
2008	4.19

The hottest, coldest and wettest days

Hottest day: 104°F; 20 July 2026
Coldest night: 13°F; 25 January 2026
Wettest day: 1.00 in; 26 June 2026

Month by month

Month	Mean temperature	Precipitation
January	32.6°F 22nd warmest of 68	0.77 in 22nd driest of 74
February	39.7°F 10th warmest of 71	0.89 in 31st wettest of 74
March	47.3°F 8th warmest of 72	0.56 in 28th driest of 78
April	50.4°F 29th coldest of 71	2.55 in 2nd wettest of 78
May	63.7°F 7th warmest of 71	0.02 in Driest of 78
June	68.4°F 34th warmest of 69	1.15 in 15th wettest of 78
July	79.8°F 16th warmest of 70	0.21 in 25th wettest of 80
August	76.2°F 16th warmest of 68	0.01 in 18th driest of 80
September	62.6°F 22nd coldest of 70	0.41 in 26th wettest of 79
October so far	63.1°F 3rd warmest of 72	0.00 in Driest of 78

Hot days and freezes

Ontario, OR has had 63 days at 90°F or above in 2026 through 9 October, the most by that date since 2025, 37th most of 70.
Ontario, OR has had 9 days at 100°F or above in 2026 through 9 October, the most by that date since 2025, tied 48th most of 70 (with 2009, 2005, 2000 and 1 other year).
Ontario, OR has had 73 freezing nights (a low of 32°F or below) in 2026 through 9 October, the most by that date since 2023, tied 58th most of 76 (with 2020).
The last freeze of spring 2026 in Ontario, OR came on Tuesday 28 April 2026, the latest since 2024, 59th latest of 76.

Daily records set

Date	Record	Value	Before	Check
6 October	Warmest day	86°F	85°F 1979	Confirmed
20 March	Warmest day	80°F	74°F 2024, 1988	Provisional
19 March	Warmest day	79°F	78°F 1997	Provisional

Daily records set and not listed: 0

Every month, season and year

Months

Seasons

Years

2025
2026

Ontario, OR the day's answers

All-time records

Every answer in words

2026 so far brought 6.57 in of precipitation in Ontario, OR, the wettest 1 January to 9 October since 2025, 33rd wettest of 73.
The hottest day of 2026 so far in Ontario, OR: 104°F on Monday 20 July 2026.
The coldest night of 2026 so far in Ontario, OR: a low of 13°F on Sunday 25 January 2026.
The wettest day of 2026 so far in Ontario, OR: 1.00 in on Friday 26 June 2026.