Hillsboro, OR: March

31 March 2026: March 2026 averaged 48.4°F in Hillsboro, OR, the warmest March since 2015, tied 14th warmest of 93 (with 1968).

March 2026

Mean temperature: 48.4°F; Warmest since 2015; 14th warmest of 93
Precipitation: 3.73 in; Wettest since 2025; 46th wettest of 96

A normal March in Hillsboro, OR (1991 to 2020): a mean temperature of 46.4°F, between 43.1°F and 49.5°F in eight years of ten and 3.62 in of precipitation, between 1.80 in and 6.10 in in eight years of ten.

The mean temperature of every March in Hillsboro, OR since 1930: 48.4°F in 2026; the highest is 51.3°F, in 1992.

Normal range, 43.1 to 49.5°F

Every year, ranked, as a table

Every March in Hillsboro, OR from 1930 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	48.4	14	57.5	22	39.3	13	3.73	46	0
2025	47.5	24	55.9	43	39.1	15	4.28	36	0
2024	46.7	35	56.3	33	37.1	40	3.47	54	0
2023	42.6	88	51.5	87	33.7	80	4.45	32	0
2022	46.7	35	56.2	38	37.3	36	1.94	83	0
2021	44	72	55.2	47	32.8	88	1.28	91	0
2020	44.1	70	53.9	63	34.3	78	2.12	81	0
2019	44.5	62	56.2	38	32.9	87	1.36	90	0
2018	44.7	57	54.6	54	34.7	72	2.79	70	0
2017	46.9	33	54	62	39.8	8	6.96	3	0
2016	48.1	19	56.3	33	39.8	8	5.31	22	0
2015	50.4	5	61.9	4	38.9	17	4.68	30	0
2014	47.2	30	57.1	28	37.2	39	6.07	12	0
2013	46.4	40	56.3	33	36.4	49	1.81	85	0
2012	43.1	84	51	92	35.2	67	6.59	6	0
2011	44.6	59	51.7	85	37.6	31	5.39	20	0
2010	45.9	47	55.7	45	36.2	51	3.76	45	0
2009	42.4	89	51.1	90	33.7	80	2.40	73	0
2008	42.2	90	51	92	33.4	84	3.31	59	0
2007	48.2	16	57.6	21	38.8	22	2.39	74	0
2006	44.4	64	52.5	79	36.3	50	3.57	50	0
2005	47.6	21	59	14	36.2	51	4.42	33	0
2004	49.3	10	59.8	10	38.9	17	1.68	87	1
2003	47.4	25	55	50	39.8	8	5.16	24	0
2002	42.9	87	51.8	83	34	79	3.49	53	0
2001	45.7	49	56.3	33	35.1	68	2.33	75	0
2000	43.7	80	53.7	65	33.7	80	3.02	66	1
1999	44	72	51.8	83	36.2	51	4.29	35	0
1998	50.5	4	58.6	17	42.4	1	4.07	40	0
1997	46.4	40	54.9	51	38.2	26	6.33	9	1
1996	47.6	21	57.2	25	38	28	2.93	67	0
1995	47.2	30	57.1	28	37.3	36	5.37	21	0
1994	49.4	9	60.7	7	38.2	26	2.85	68	0
1993	48.2	16	57.3	23	39.2	14	3.77	44	2
1992	51.3	1	63.7	2	38.9	17	1.17	93	0
1991	44.3	65	53.5	68	35.1	68	3.67	48	0
1990	48.2	16	59	14	37.4	35	1.59	88	0
1989	44.5	62	51.4	88	37.5	33	5.78	17	0
1988	46.3	42	56.8	30	35.7	61	3.17	63	0
1987	47.6	21	56.4	32	38.9	17	5.89	15	0
1986	50.8	3	61.1	6	40.5	5	3.47	54	0
1985	43	85	54.4	58	32.1	94	3.55	51	3
1984			58.4	19			3.79	43	5
1983	49.1	11	57.2	25	41	3	6.61	5	1
1982	44.9	56	55.2	47	34.6	75	3.07	65	0
1981	47.4	25	58.9	16	35.9	59	2.60	71	0
1980	45.5	51	53.7	65	37.3	36	2.85	68	0
1979	48.8	12	59.7	11	37.8	29	2.05	82	0
1978	49.7	7	60.6	8	39	16	1.90	84	1
1977	43.8	78	52.6	78	35.1	68	3.68	47	0
1976	43.4	82	52.2	80	34.7	72	4.55	31	0
1975	45	54	53.2	72	36.8	43	4.13	38	0
1974	46.7	35	55.1	49	38.4	24	6.39	8	0
1973	45.8	48	54.1	60	37.5	33	3.10	64	0
1972	48.6	13	56.7	31	40.4	6	6.93	4	0
1971	43.8	78	51.4	88	36.2	51	5.98	13	0
1970	47	32	57.2	25	36.7	46	2.16	79	0
1969	46.6	39	59.6	13	33.6	83	0.72	95	0
1968	48.4	14	57.3	23	39.5	12	3.46	56	0
1967	43.2	83	51.9	82	34.5	76	4.74	28	1
1966	45	54	53.9	63	36	56	6.27	10	0
1965	46	44	59.7	11	32.6	89	0.50	96	1
1964	43.9	76	53.3	71	34.5	76	3.30	60	0
1963	44.7	57	54.1	60	34.8	71	5.80	16	2
1962	44	72	52.7	77	35.5	64	4.13	38	1
1961	47.3	29	54.5	56	39.9	7	8.32	1	3
1960	43.9	76	52	81	35.7	61	5.14	25	1
1959					37.7	30	4.18	37	4
1958	46	44	55.7	45	36	56	2.19	78	2
1957	47.4	25	54.2	59	40.8	4	5.98	13	1
1956	44.1	70	51.1	90	37.1	40	4.41	34	0
1955	40.9	93	49.8	96	32.2	93	3.25	62	1
1954			56.1	40			1.09	94	4
1953	45.4	52	54.5	56	36.5	47	3.58	49	2
1952	44.3	65	52.9	75	35.7	61	3.30	60	0
1951	41	92	50.4	94	31.7	95			0
1950	44.2	67	51.7	85	36.8	43	4.84	27	2
1949	45.7	49	54.6	54	36.8	43	3.40	58	0
1948	44.2	67	53.6	67	34.7	72	3.93	41	0
1947	49.5	8	61.9	4	37.1	40	3.93	41	0
1946	46.3	42	56.1	40	36.5	47	5.19	23	0
1945	44.2	67	52.9	75	35.5	64	5.70	18	0
1944	44.6	59	55.9	43	33.2	86	2.57	72	0
1943	44	72	54.7	53	33.3	85	6.48	7	0
1942	43.7	80	54.8	52	32.6	89	1.70	86	0
1941	51	2	63.6	3	38.4	24	1.57	89	0
1940	50	6	58.6	17	41.4	2	3.55	51	1
1939	46.8	34	58	20	35.5	64	2.16	79	1
1938	45.1	53	53.5	68	36.1	55	7.12	2	2
1937	47.4	25	56.3	33	38.5	23	3.45	57	0
1936	43	85	53.4	70	32.4	91	2.33	75	1
1935	41.3	91	50.1	95	32.4	91	5.44	19	0
1934			65.2	1	39.8	8	2.30	77	4
1933	44.6	59	53.1	74	36	56	5.11	26	2
1932	46	44	53.2	72	38.9	17	4.71	29	0
1931	46.7	35	56.1	40	37.6	31	6.13	11	2
1930	48	20	60	9	35.8	60	1.24	92	2

Warmest, coldest, wettest and driest

Warmest
Year	Mean, °F
1992	51.3
1941	51
1986	50.8
1998	50.5
2015	50.4
1940	50
1978	49.7
1947	49.5
1994	49.4
2004	49.3

Coldest
Year	Mean, °F
1955	40.9
1951	41
1935	41.3
2008	42.2
2009	42.4
2023	42.6
2002	42.9
1985	43
1936	43
2012	43.1

Wettest
Year	Precipitation, in
1961	8.32
1938	7.12
2017	6.96
1972	6.93
1983	6.61
2012	6.59
1943	6.48
1974	6.39
1997	6.33
1966	6.27

Driest
Year	Precipitation, in
1965	0.50
1969	0.72
1954	1.09
1992	1.17
1930	1.24
2021	1.28
2019	1.36
1941	1.57
1990	1.59
2004	1.68

The hottest, coldest and wettest days

Hottest day: 68°F; 18 March 2026, 16 March 2026
Coldest night: 28°F; 26 March 2026
Wettest day: 1.39 in; 11 March 2026

Every month, season and year

Months

Seasons

Years

2025

Hillsboro, OR the day's answers

All-time records

Every answer in words

March 2026 brought 3.73 in of precipitation in Hillsboro, OR, the wettest March since 2025, 46th wettest of 96.
The hottest day of March 2026 in Hillsboro, OR: 68°F on Wednesday 18 March 2026 and Monday 16 March 2026.
The coldest night of March 2026 in Hillsboro, OR: a low of 28°F on Thursday 26 March 2026.
The wettest day of March 2026 in Hillsboro, OR: 1.39 in on Wednesday 11 March 2026.