Ontario, OR: Spring

31 May 2026: Spring 2026 averaged 53.8°F in Ontario, OR, the warmest spring since 2025, tied 8th warmest of 69 (with 2020 and 2019).

Spring 2026

Mean temperature: 53.8°F; Warmest since 2025; 8th warmest of 69
Precipitation: 3.13 in; Wettest since 2023; 18th wettest of 75

The mean temperature of every spring in Ontario, OR since 1946: 53.8°F in 2026; the highest is 55.2°F, in 2016.

Every year, ranked, as a table

Every spring 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	53.8	8	68.2	12	39.5	14	3.13	18	0
2025	54	5	67.5	17	40.5	4	1.23	65	0
2024	52.8	19	66.2	29	39.4	16	2.98	22	0
2023	52.3	28	64.3	53	40.3	6	4.37	8	0
2022	51.1	46	64.4	52	37.8	35	2.12	43	0
2021	53.3	13	68.2	12	38.5	27	0.95	73	0
2020	53.8	8	68.3	11	39.4	16	2.92	24	0
2019	53.8	8	66.2	29	41.3	3	5.13	3	0
2018	54.6	2	67.7	15	41.4	2	2.45	34	0
2017	52.5	25	64.6	47	40.4	5	4.04	10	2
2016	55.2	1	68.7	5	41.6	1	1.19	66	0
2015	54.2	4	68.7	5	39.7	11	2.80	28	0
2014	53.1	16	66.9	22	39.2	19	2.81	27	0
2013	52.8	19	66.9	22	38.7	23	1.01	72	0
2012	52.4	27	65.8	35	38.9	21	3.70	12	0
2011	48.1	69	59.4	70	36.8	52	4.99	5	0
2010	48.7	64	61.6	66	35.7	65	2.84	25	0
2009	50.9	50	64.2	54	37.5	43	2.32	37	1
2008	49.3	61	62.6	61	36.1	63	1.16	68	0
2007	54	5	68.4	9	39.5	14	1.05	71	0
2006	51.7	38	64.2	54	39.1	20	5.13	3	0
2005	51.3	42	64.6	47	38	31	4.74	7	1
2004	53.2	14	66.8	25	39.7	11	2.17	41	0
2003	52.8	19	65.6	38	40	7	3.69	13	0
2002	50.9	50	64.5	50	37.3	45	1.44	61	0
2001	52	33	65.4	41	38.6	26	2.08	46	2
2000	52.8	19	65.8	35	39.9	9	1.86	52	0
1999	49.6	59	62.4	62	36.8	52	1.12	69	0
1998	50.1	55	61.5	67	38.7	23			0
1997									55
1996	51.3	42	64.6	47	37.6	39	4.04	10	9
1995			63.8	57			2.82	26	15
1994	54.4	3	70.1	2	38.5	27			8
1993					38.8	22			10
1992					40	7	1.48	60	12
1991					37	50	3.34	14	11
1990					38.7	23	3.22	16	17
1989					37.6	39	3.03	20	13
1988					36.6	56	2.02	48	16
1987					39.6	13	2.76	29	17
1986					37.7	37	1.89	50	12
1985	51.2	44	66	33	36.5	57	2.19	40	0
1984	49.8	58	62.3	63	37.1	49	2.95	23	5
1983	51.4	40	64.8	45	38	31	5.25	2	3
1982	49.2	63	62.7	60	35.7	65	1.60	58	1
1981	52	33	66.1	31	37.9	33	2.45	34	0
1980	52	33	66.4	28	37.7	37	2.50	32	0
1979	52.3	28	66.7	27	37.8	35	1.70	56	2
1978	51.9	36	65.4	41	38.4	29	3.25	15	0
1977	50.4	53	65.7	37	35.3	71	1.73	55	1
1976	49.9	57	65.2	44	34.7	76	1.31	63	1
1975	48.2	68	61.1	69	35.4	70	2.23	39	0
1974	51.1	46	65.5	39	36.7	55	1.08	70	0
1973	53.1	16	68.6	8	37.5	43	2.09	45	0
1972	53.2	14	68.7	5	37.6	39	0.95	73	0
1971	52.1	32	66.8	25	37.3	45	1.33	62	2
1970	49.6	59	64.8	45	34.4	77	1.27	64	0
1969	53.1	16	69	4	37.2	48	2.25	38	0
1968	52.2	30	68.2	12	36.3	60	1.19	66	0
1967	50.2	54	64.5	50	35.9	64	3.07	19	0
1966	53.7	11	71.8	1	35.6	68	0.88	75	0
1965	51.4	40	67.2	19	35.7	65	1.76	53	1
1964	49.3	61	63.6	59	35.1	72	2.52	31	0
1963	52.6	23	66.9	22	38.2	30	2.43	36	1
1962	51.7	38	67	21	36.5	57	3.00	21	0
1961	52.6	23	67.3	18	37.9	33	1.62	57	0
1960	51.2	44	66.1	31	36.2	62	3.16	17	0
1959	51	48	67.1	20	34.9	74	1.88	51	0
1958	52.2	30	67.7	15	36.8	52	4.20	9	1
1957	52.5	25	65.4	41	39.8	10	5.95	1	1
1956	53.5	12	69.8	3	37.3	45	1.75	54	0
1954	51	48	65.5	39	36.5	57	2.04	47	0
1953	48.5	65	62.2	64	34.8	75	4.81	6	0
1952	50.5	52	63.9	56	37	50	1.55	59	0
1951	50	56	63.8	57	36.3	60	2.61	30	0
1950	48.4	67	61.8	65	35	73	2.14	42	0
1949	53.9	7	68.4	9	39.4	16	1.96	49	0
1948	48.5	65	61.5	67	35.5	69	2.46	33	0
1947									31
1946	51.8	37	66	33	37.6	39	2.11	44	1

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
2016	55.2
2018	54.6
1994	54.4
2015	54.2
2025	54
2007	54
1949	53.9
2026	53.8
2020	53.8
2019	53.8

Coldest
Year	Mean, °F
2011	48.1
1975	48.2
1950	48.4
1953	48.5
1948	48.5
2010	48.7
1982	49.2
2008	49.3
1964	49.3
1999	49.6
More years share the last value

Wettest
Year	Precipitation, in
1957	5.95
1983	5.25
2019	5.13
2006	5.13
2011	4.99
1953	4.81
2005	4.74
2023	4.37
1958	4.20
2017	4.04
More years share the last value

Driest
Year	Precipitation, in
1966	0.88
2021	0.95
1972	0.95
2013	1.01
2007	1.05
1974	1.08
1999	1.12
2008	1.16
2016	1.19
1968	1.19

The hottest, coldest and wettest days

Hottest day: 92°F; 25 May 2026
Coldest night: 23°F; 27 March 2026
Wettest day: 0.70 in; 12 April 2026

Every month, season and year

Months

Seasons

Years

Ontario, OR the day's answers

All-time records

Every answer in words

Spring 2026 brought 3.13 in of precipitation in Ontario, OR, the wettest spring since 2023, 18th wettest of 75.
The hottest day of spring 2026 in Ontario, OR: 92°F on Monday 25 May 2026.
The coldest night of spring 2026 in Ontario, OR: a low of 23°F on Friday 27 March 2026.
The wettest day of spring 2026 in Ontario, OR: 0.70 in on Sunday 12 April 2026.