Ontario, OR: June

30 June 2026: June 2026 averaged 68.4°F in Ontario, OR, the warmest June since 2025, tied 34th warmest of 69 (with 2022 and 2000).

June 2026

Mean temperature: 68.4°F; Warmest since 2025; 34th warmest of 69
Precipitation: 1.15 in; Wettest since 2023; 15th wettest of 78

A normal June in Ontario, OR (1991 to 2020): 0.40 in of precipitation, between 0.16 in and 1.35 in in eight years of ten.

The mean temperature of every June in Ontario, OR since 1946: 68.4°F in 2026; the highest is 77.2°F, in 2021.

Every year, ranked, as a table

Every June in Ontario, OR from 1946 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	68.4	34	83.5	42	53.3	29	1.15	15	0
2025	71.1	12	86.4	20	55.9	8	0.16	65	0
2024	72.7	6	88.6	9	56.8	5	0.69	29	0
2023	70.1	20	83.7	39	56.6	6	1.32	10	0
2022	68.4	34	83.2	45	53.5	26	1.05	18	0
2021	77.2	1	93.7	2	60.6	1	0.37	49	0
2020	68.3	37	81.5	54	55.1	15	2.16	1	0
2019	69.8	21	85	31	54.5	20	0.18	63	0
2018	68.9	29	83.6	40	54.2	22	0.42	46	0
2017	69.3	25	84.2	35	54.4	21	0.60	36	0
2016	71.6	9	88	14	55.1	15	0.12	67	0
2015	77	2	93.3	3	60.6	1	0.21	62	0
2014	69	28	83.3	44	54.7	18	0.27	58	0
2013	70.3	18	85.2	30	55.3	14	0.67	32	0
2012	67	46	82.6	48	51.5	48	0.28	57	0
2011	64.1	64	77.5	67	50.6	55	0.72	28	0
2010	66	55	79.5	65	52.6	38	1.27	12	0
2009	67.6	42	80.4	60	54.9	17	1.99	2	0
2008	67.8	40	83	46	52.7	35	0.26	60	0
2007	69.5	22	85.3	26	53.8	23	0.79	26	0
2006	71.6	9	86.2	22	56.9	4	0.32	54	0
2005	64	65	79.2	66	48.7	69	0.87	24	0
2004	68.2	39	83.5	42	52.8	32	0.37	49	2
2003	71.4	11	87.2	18	55.6	11	0.22	61	1
2002	70.7	14	85.7	23	55.6	11	0.63	35	0
2001	67.3	43	81.8	53	52.7	35	0.55	38	0
2000	68.4	34	84.4	34	52.4	40	0.31	56	1
1999	66.6	50	79.9	63	53.3	29	1.04	20	2
1998							0.34	51	5
1996	66.6	50	84.2	35	49.9	61	0.18	63	2
1995	65.8	59	80.3	62	50.8	52	0.00	78	2
1994			85.3	26			0.01	76	4
1993					48.4	72	1.55	7	4
1992					55.8	9			7
1991					49.9	61	0.95	22	8
1990					53.4	28	0.50	43	5
1989					52.5	39	0.50	43	9
1988					55.8	9	0.41	48	7
1987					53.6	25	0.52	39	5
1986					54.7	18	0.33	52	6
1985	70.7	14	88.6	9	52.8	32	0.44	45	1
1984	64.5	63	79.6	64	49.3	67	1.38	8	0
1983	66.1	53	82.7	47	49.5	66	0.57	37	0
1982	67.7	41	83.6	40	51.7	46	0.67	32	0
1981	66.1	53	82.1	52	50	59	1.13	16	0
1980	63.5	66	80.9	56	46.1	77	1.02	21	0
1979	69.1	27	87.4	16	50.7	53	0.32	54	0
1978	66.8	48	85	31	48.6	70	0.74	27	0
1977	74.1	4	91.1	6	57.2	3	0.05	75	0
1976	65.4	60	82.4	50	48.3	73	0.16	65	0
1975	65.9	57	81.5	54	50.3	58	1.32	10	0
1974	72.8	5	93.3	3	52.3	42	0.08	70	0
1973	69.4	24	89	8	49.8	63	0.01	76	0
1972	71.1	12	88.6	9	53.7	24	0.86	25	0
1971	67	46	83.9	38	50	59	1.05	18	0
1970	70.7	14	88.4	12	53.5	26	1.99	2	1
1969	68.9	29	85.6	24	52.1	43	1.22	13	0
1968	70.2	19	87.6	15	52.8	32	0.06	73	0
1967	68.6	32	85.3	26	51.8	44	1.35	9	0
1966	67.1	45	85.4	25	48.8	68	0.33	52	0
1965	68.5	33	85.3	26	51.8	44	0.68	30	0
1964	65.9	57	80.7	59	51	51	1.65	6	0
1963	66.6	50	82.2	51	51.3	49	1.79	5	1
1962	69.5	22	88.3	13	50.6	55	0.07	71	0
1961	76	3	96.6	1	55.5	13	0.10	68	0
1960	72	8	92.2	5	51.6	47	0.06	73	1
1959	72.1	7	91.1	6	53	31	0.07	71	0
1958	69.3	25	86.3	21	52.4	40	0.51	41	1
1957	68.9	29	87.3	17	50.4	57	0.42	46	0
1956	67.3	43	86.6	19	48.1	74	0.68	30	0
1954	62.2	68	76.3	68	48	75	0.51	41	0
1953	61.8	69	75.5	70	48	75	1.12	17	0
1952	66	55	80.9	56	51.1	50	1.22	13	0
1951	64.7	62	80.9	56	48.5	71	0.66	34	0
1950	65.1	61	80.4	60	49.8	63	0.92	23	0
1949	68.3	37	84	37	52.7	35	0.27	58	0
1948	70.6	17	84.9	33	56.4	7	0.52	39	0
1947	62.9	67	76.2	69	49.6	65	1.95	4	0
1946	66.7	49	82.6	48	50.7	53	0.10	68	0

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2021	77.2
2015	77
1961	76
1977	74.1
1974	72.8
2024	72.7
1959	72.1
1960	72
2016	71.6
2006	71.6

Coldest
Year	Mean, °F
1953	61.8
1954	62.2
1947	62.9
1980	63.5
2005	64
2011	64.1
1984	64.5
1951	64.7
1950	65.1
1976	65.4

Wettest
Year	Precipitation, in
2020	2.16
2009	1.99
1970	1.99
1947	1.95
1963	1.79
1964	1.65
1993	1.55
1984	1.38
1967	1.35
2023	1.32
More years share the last value

Driest
Year	Precipitation, in
1995	0.00
1994	0.01
1973	0.01
1977	0.05
1968	0.06
1960	0.06
1962	0.07
1959	0.07
1974	0.08
1961	0.10
More years share the last value

The hottest, coldest and wettest days

Hottest day: 100°F; 16 June 2026
Coldest night: 40°F; 11 June 2026
Wettest day: 1.00 in; 26 June 2026

Every month, season and year

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Ontario, OR the day's answers

All-time records

Every answer in words

June 2026 brought 1.15 in of precipitation in Ontario, OR, the wettest June since 2023, 15th wettest of 78.
The hottest day of June 2026 in Ontario, OR: 100°F on Tuesday 16 June 2026.
The coldest night of June 2026 in Ontario, OR: a low of 40°F on Thursday 11 June 2026.
The wettest day of June 2026 in Ontario, OR: 1.00 in on Friday 26 June 2026.