Hillsboro, OR

45.548°N, 122.956°W · station HIOthr · 1929–2026 · 98 years · normal 36.2 in/yr

The Accumulation Ribbon

Every day of the year at Hillsboro: how the rain adds up. The filled curve is the normal running total; the dashed lines are the wettest (1996) and driest (1930) years on record; the white line is 2026 so far.

Normal to date Wettest / driest year 2026 so far normal annual 36.2 in

All-Time Extremes

Driest year

23.7in

1930 · mean 36.6 in

Longest dry streak

76 days

< 0.01 in · ended 2018-09-09

Wettest day ever

3.40in

Nov 18, 1996

Wettest year

62.6in

1996 · mean 36.6 in

Longest wet streak

31 days

≥ 0.01 in · ended 1983-11-29

Wettest month ever

14.83in

Dec 1996

Records by Month

Month	Wettest day	Normal	Wettest month
Jan	2.84″ Jan 15, 1974	5.41″	11.99″ 1953
Feb	2.68″ Feb 10, 1949	3.89″	10.23″ 1996
Mar	1.87″ Mar 30, 1943	3.58″	8.32″ 1961
Apr	1.82″ Apr 5, 1991	1.96″	5.91″ 2003
May	1.17″ May 13, 1978	1.53″	4.77″ 1998
Jun	2.04″ Jun 7, 1985	1.08″	4.38″ 1984
Jul	1.25″ Jul 19, 1983	0.26″	2.81″ 1983
Aug	1.33″ Aug 1, 1985	0.35″	3.84″ 1968
Sep	1.73″ Sep 28, 2013	1.27″	6.27″ 2013
Oct	2.60″ Oct 26, 1994	2.86″	8.66″ 2016
Nov	3.40″ Nov 18, 1996	5.34″	12.88″ 2006
Dec	3.31″ Dec 27, 1937	6.69″	14.83″ 1996

Record Daily Rainfall

The heaviest one-day rainfall ever recorded on each calendar date — when Hillsboro's big rains fall.

Year by Year

Driest years

1930	23.70 in
1985	23.86 in
2008	24.10 in
2013	24.57 in
1989	24.61 in

The Full Record

Every day of the year: normal daily precip, the record one-day total with its year, how often it rains, and the cumulative normal. Type to filter, click a column to sort.

Show me the data — the full daily record

Date	Normal	Record 1-day	Yr	Wet-day %	Cum. normal
Jan 1	0.19″	2.58″	2009	58%	0.19″
Jan 2	0.19″	1.25″	1951	61%	0.38″
Jan 3	0.18″	1.94″	1956	67%	0.55″
Jan 4	0.17″	1.74″	1954	67%	0.73″
Jan 5	0.18″	0.88″	1980	71%	0.91″
Jan 6	0.18″	1.63″	1950	62%	1.08″
Jan 7	0.17″	1.58″	1990	62%	1.26″
Jan 8	0.17″	1.37″	1953	69%	1.43″
Jan 9	0.17″	1.47″	1968	71%	1.60″
Jan 10	0.18″	1.33″	1979	70%	1.78″
Jan 11	0.19″	1.02″	1972	70%	1.97″
Jan 12	0.19″	2.72″	1936	66%	2.16″
Jan 13	0.19″	0.88″	2016	61%	2.35″
Jan 14	0.18″	1.30″	1951	64%	2.53″
Jan 15	0.18″	2.84″	1974	72%	2.72″
Jan 16	0.18″	1.82″	1974	69%	2.89″
Jan 17	0.18″	1.51″	2015	66%	3.07″
Jan 18	0.18″	1.14″	2024	62%	3.25″
Jan 19	0.17″	1.43″	1950	55%	3.42″
Jan 20	0.16″	2.00″	1972	54%	3.58″
Jan 21	0.17″	1.20″	1951	58%	3.75″
Jan 22	0.17″	1.56″	1954	61%	3.92″
Jan 23	0.17″	1.11″	1982	64%	4.09″
Jan 24	0.17″	1.13″	1965	59%	4.27″
Jan 25	0.16″	1.65″	1964	59%	4.43″
Jan 26	0.15″	1.03″	1964	57%	4.58″
Jan 27	0.15″	1.24″	1954	62%	4.73″
Jan 28	0.14″	2.00″	1963	59%	4.87″
Jan 29	0.15″	1.11″	1990	58%	5.02″
Jan 30	0.15″	1.56″	1997	59%	5.17″
Jan 31	0.16″	1.92″	2003	58%	5.33″
Feb 1	0.15″	2.33″	1987	63%	5.49″
Feb 2	0.15″	1.39″	1968	55%	5.64″
Feb 3	0.15″	0.83″	1963	58%	5.79″
Feb 4	0.15″	1.02″	1937	54%	5.94″
Feb 5	0.15″	2.30″	1996	58%	6.08″
Feb 6	0.14″	1.60″	1943	57%	6.22″
Feb 7	0.13″	2.12″	1996	52%	6.35″
Feb 8	0.13″	1.35″	1960	57%	6.48″
Feb 9	0.14″	1.08″	1983	57%	6.62″
Feb 10	0.14″	2.68″	1949	55%	6.76″
Feb 11	0.15″	0.91″	2019	53%	6.91″
Feb 12	0.15″	2.24″	1954	61%	7.06″
Feb 13	0.15″	1.06″	1984	60%	7.21″
Feb 14	0.14″	1.02″	1939	65%	7.35″
Feb 15	0.14″	1.23″	2017	65%	7.49″
Feb 16	0.14″	1.63″	1970	68%	7.62″
Feb 17	0.14″	1.82″	1949	58%	7.76″
Feb 18	0.14″	1.09″	1968	63%	7.90″
Feb 19	0.14″	1.45″	1968	56%	8.05″
Feb 20	0.14″	1.71″	1982	59%	8.19″
Feb 21	0.14″	1.26″	1936	54%	8.33″
Feb 22	0.15″	1.24″	1936	57%	8.47″
Feb 23	0.14″	1.04″	1983	54%	8.62″
Feb 24	0.14″	1.32″	1957	54%	8.75″
Feb 25	0.13″	1.25″	1957	57%	8.88″
Feb 26	0.13″	1.00″	2000	55%	9.01″
Feb 27	0.13″	1.49″	1976	46%	9.14″
Feb 28	0.12″	1.89″	2022	56%	9.25″
Feb 29	0.12″	0.97″	1997	59%	9.38″
Mar 1	0.12″	0.76″	1972	66%	9.50″
Mar 2	0.12″	0.85″	1987	60%	9.62″
Mar 3	0.12″	1.28″	1987	57%	9.75″
Mar 4	0.13″	1.60″	1961	54%	9.88″
Mar 5	0.13″	0.60″	1989	55%	10.01″
Mar 6	0.14″	0.86″	1957	56%	10.14″
Mar 7	0.14″	1.13″	1995	56%	10.28″
Mar 8	0.14″	1.44″	1966	54%	10.42″
Mar 9	0.14″	1.03″	1983	60%	10.56″
Mar 10	0.13″	1.39″	2026	53%	10.69″
Mar 11	0.14″	1.40″	1935	63%	10.82″
Mar 12	0.13″	0.99″	1972	59%	10.95″
Mar 13	0.13″	1.44″	2015	65%	11.08″
Mar 14	0.13″	1.08″	1967	65%	11.21″
Mar 15	0.13″	0.93″	1938	53%	11.34″
Mar 16	0.13″	1.05″	1938	55%	11.47″
Mar 17	0.12″	0.82″	1931	42%	11.59″
Mar 18	0.12″	0.72″	1995	48%	11.72″
Mar 19	0.12″	0.50″	1945	45%	11.84″
Mar 20	0.12″	1.07″	1998	48%	11.96″
Mar 21	0.11″	0.78″	1938	56%	12.07″
Mar 22	0.11″	1.66″	1948	64%	12.18″
Mar 23	0.10″	0.91″	1935	61%	12.28″
Mar 24	0.10″	1.15″	1976	59%	12.39″
Mar 25	0.10″	1.16″	2005	59%	12.49″
Mar 26	0.10″	1.20″	2005	55%	12.59″
Mar 27	0.10″	1.06″	1963	54%	12.69″
Mar 28	0.10″	1.23″	1963	54%	12.79″
Mar 29	0.10″	1.87″	1943	52%	12.89″
Mar 30	0.10″	1.44″	1931	57%	13.00″
Mar 31	0.10″	0.49″	2012	55%	13.10″
Apr 1	0.11″	0.74″	2010	51%	13.21″
Apr 2	0.11″	0.73″	1982	45%	13.32″
Apr 3	0.10″	0.73″	1991	48%	13.42″
Apr 4	0.11″	1.82″	1991	56%	13.53″
Apr 5	0.11″	0.77″	2019	43%	13.63″
Apr 6	0.11″	0.86″	2018	53%	13.74″
Apr 7	0.11″	0.66″	1962	53%	13.85″
Apr 8	0.11″	1.32″	1971	53%	13.95″
Apr 9	0.11″	1.19″	2023	54%	14.06″
Apr 10	0.11″	0.62″	1982	48%	14.17″
Apr 11	0.11″	1.09″	2003	54%	14.28″
Apr 12	0.10″	1.00″	1937	53%	14.38″
Apr 13	0.10″	1.10″	1937	51%	14.47″
Apr 14	0.09″	0.59″	2004	48%	14.56″
Apr 15	0.09″	0.71″	1960	51%	14.66″
Apr 16	0.09″	0.58″	1958	44%	14.75″
Apr 17	0.09″	0.57″	1932	46%	14.83″
Apr 18	0.09″	0.69″	1965	42%	14.92″
Apr 19	0.08″	0.55″	1965	43%	15.00″
Apr 20	0.08″	0.82″	1961	37%	15.08″
Apr 21	0.08″	0.53″	1961	42%	15.16″
Apr 22	0.07″	0.85″	1996	49%	15.23″
Apr 23	0.07″	0.98″	1996	47%	15.30″
Apr 24	0.07″	0.61″	2011	46%	15.37″
Apr 25	0.07″	0.58″	2010	45%	15.44″
Apr 26	0.07″	1.63″	1962	46%	15.51″
Apr 27	0.07″	0.48″	1951	45%	15.58″
Apr 28	0.07″	0.81″	2003	42%	15.66″
Apr 29	0.07″	0.63″	1936	40%	15.72″
Apr 30	0.06″	1.11″	1940	43%	15.79″
May 1	0.06″	0.78″	1986	45%	15.85″
May 2	0.06″	0.61″	1975	51%	15.91″
May 3	0.06″	0.95″	2009	48%	15.96″
May 4	0.06″	0.85″	2024	37%	16.02″
May 5	0.06″	0.61″	1948	35%	16.08″
May 6	0.06″	0.55″	1948	36%	16.14″
May 7	0.06″	0.50″	1991	39%	16.20″
May 8	0.06″	0.82″	2005	33%	16.26″
May 9	0.07″	0.45″	1937	32%	16.32″
May 10	0.07″	0.98″	1957	31%	16.39″
May 11	0.06″	0.60″	1998	31%	16.45″
May 12	0.07″	1.17″	1978	35%	16.52″
May 13	0.07″	0.71″	1959	36%	16.59″
May 14	0.07″	0.97″	1936	43%	16.66″
May 15	0.07″	0.78″	1998	38%	16.74″
May 16	0.07″	0.59″	1991	36%	16.81″
May 17	0.07″	0.62″	1960	38%	16.89″
May 18	0.07″	0.58″	1981	39%	16.96″
May 19	0.07″	0.63″	1998	36%	17.04″
May 20	0.07″	0.49″	1953	30%	17.11″
May 21	0.07″	1.00″	2013	41%	17.18″
May 22	0.07″	0.82″	1945	34%	17.25″
May 23	0.07″	0.63″	1984	33%	17.32″
May 24	0.07″	0.42″	1993	41%	17.39″
May 25	0.06″	0.93″	1946	39%	17.45″
May 26	0.06″	0.63″	2006	34%	17.51″
May 27	0.06″	0.87″	1993	37%	17.57″
May 28	0.06″	0.49″	1948	31%	17.63″
May 29	0.06″	0.53″	1997	30%	17.68″
May 30	0.06″	0.76″	1977	32%	17.74″
May 31	0.06″	0.63″	1993	31%	17.79″
Jun 1	0.06″	0.64″	1968	27%	17.85″
Jun 2	0.06″	0.56″	2024	26%	17.91″
Jun 3	0.05″	0.57″	1954	38%	17.96″
Jun 4	0.05″	0.80″	1964	29%	18.01″
Jun 5	0.05″	1.44″	2010	36%	18.06″
Jun 6	0.05″	2.04″	1985	29%	18.11″
Jun 7	0.05″	1.29″	1981	31%	18.16″
Jun 8	0.05″	1.01″	1933	32%	18.21″
Jun 9	0.05″	0.78″	2022	36%	18.26″
Jun 10	0.05″	0.44″	1956	27%	18.31″
Jun 11	0.04″	0.70″	1952	29%	18.35″
Jun 12	0.04″	0.78″	2021	28%	18.39″
Jun 13	0.04″	0.66″	1957	31%	18.44″
Jun 14	0.04″	0.63″	1952	33%	18.47″
Jun 15	0.04″	0.64″	1979	34%	18.51″
Jun 16	0.04″	1.51″	1950	29%	18.55″
Jun 17	0.04″	0.67″	1931	30%	18.59″
Jun 18	0.04″	0.78″	2009	22%	18.62″
Jun 19	0.04″	0.61″	1991	25%	18.66″
Jun 20	0.04″	0.89″	1991	19%	18.70″
Jun 21	0.04″	1.65″	1984	22%	18.74″
Jun 22	0.03″	0.60″	1969	29%	18.77″
Jun 23	0.03″	0.51″	1998	24%	18.80″
Jun 24	0.03″	0.45″	1934	29%	18.84″
Jun 25	0.03″	0.46″	2014	21%	18.87″
Jun 26	0.03″	0.42″	2001	23%	18.89″
Jun 27	0.03″	0.77″	2002	24%	18.92″
Jun 28	0.03″	0.36″	1953	21%	18.95″
Jun 29	0.02″	0.63″	1984	20%	18.97″
Jun 30	0.02″	0.48″	1966	14%	18.99″
Jul 1	0.02″	0.34″	1983	10%	19.01″
Jul 2	0.02″	0.35″	1999	12%	19.03″
Jul 3	0.02″	0.55″	1986	16%	19.05″
Jul 4	0.01″	0.40″	1959	15%	19.07″
Jul 5	0.01″	0.27″	1992	14%	19.08″
Jul 6	0.01″	0.54″	1948	12%	19.09″
Jul 7	0.01″	0.71″	1946	18%	19.10″
Jul 8	0.01″	0.65″	1995	18%	19.12″
Jul 9	0.01″	0.27″	1974	13%	19.13″
Jul 10	0.01″	0.30″	1942	14%	19.15″
Jul 11	0.01″	0.16″	2011	7%	19.16″
Jul 12	0.02″	0.26″	2011	9%	19.18″
Jul 13	0.02″	0.29″	1942	7%	19.19″
Jul 14	0.01″	0.88″	1978	15%	19.21″
Jul 15	0.01″	0.51″	1964	14%	19.22″
Jul 16	0.01″	0.53″	1993	10%	19.23″
Jul 17	0.01″	0.48″	1987	9%	19.25″
Jul 18	0.01″	1.25″	1983	8%	19.26″
Jul 19	0.01″	0.43″	1993	10%	19.27″
Jul 20	0.01″	0.29″	1993	8%	19.28″
Jul 21	0.01″	0.44″	1940	9%	19.29″
Jul 22	0.01″	0.36″	2014	3%	19.31″
Jul 23	0.01″	0.50″	1949	5%	19.32″
Jul 24	0.01″	0.33″	1977	6%	19.33″
Jul 25	0.01″	0.38″	1947	4%	19.33″
Jul 26	0.01″	0.31″	1940	6%	19.34″
Jul 27	0.01″	0.32″	1975	7%	19.35″
Jul 28	0.01″	0.16″	2001	4%	19.35″
Jul 29	0.01″	0.30″	1998	9%	19.36″
Jul 30	0.01″	0.30″	1985	8%	19.36″
Jul 31	0.01″	1.33″	1985	3%	19.37″
Aug 1	0.01″	0.34″	1989	8%	19.38″
Aug 2	0.01″	0.66″	1962	11%	19.38″
Aug 3	0.01″	0.60″	1933	8%	19.39″
Aug 4	0.01″	0.18″	1943	5%	19.40″
Aug 5	0.01″	0.28″	1999	7%	19.41″
Aug 6	0.01″	0.61″	1962	11%	19.42″
Aug 7	0.01″	0.40″	1985	7%	19.43″
Aug 8	0.01″	0.14″	1937	7%	19.43″
Aug 9	0.01″	0.71″	1982	7%	19.44″
Aug 10	0.01″	0.50″	2009	7%	19.45″
Aug 11	0.01″	0.33″	1965	8%	19.46″
Aug 12	0.01″	0.21″	1987	10%	19.47″
Aug 13	0.01″	0.15″	1979	7%	19.48″
Aug 14	0.01″	0.63″	1979	11%	19.50″
Aug 15	0.01″	0.89″	1976	10%	19.51″
Aug 16	0.01″	0.18″	1938	12%	19.52″
Aug 17	0.01″	0.50″	2024	10%	19.54″
Aug 18	0.02″	0.31″	1979	12%	19.56″
Aug 19	0.02″	1.13″	1978	12%	19.57″
Aug 20	0.02″	0.54″	1979	13%	19.59″
Aug 21	0.02″	0.64″	2001	19%	19.61″
Aug 22	0.02″	1.10″	1977	21%	19.63″
Aug 23	0.02″	1.10″	1973	15%	19.65″
Aug 24	0.02″	1.03″	1977	22%	19.68″
Aug 25	0.02″	0.79″	1956	18%	19.70″
Aug 26	0.02″	0.22″	1997	19%	19.72″
Aug 27	0.02″	0.34″	1951	20%	19.75″
Aug 28	0.03″	0.95″	1943	17%	19.77″
Aug 29	0.03″	1.29″	1983	21%	19.80″
Aug 30	0.03″	0.75″	2023	22%	19.83″
Aug 31	0.03″	0.96″	1941	18%	19.86″
Sep 1	0.03″	0.54″	1979	19%	19.89″
Sep 2	0.03″	1.38″	1979	17%	19.91″
Sep 3	0.03″	1.72″	1945	18%	19.94″
Sep 4	0.03″	0.77″	2013	18%	19.97″
Sep 5	0.03″	0.68″	1931	18%	19.99″
Sep 6	0.03″	0.87″	2010	21%	20.02″
Sep 7	0.03″	0.37″	1930	17%	20.05″
Sep 8	0.04″	0.90″	1931	23%	20.09″
Sep 9	0.04″	0.78″	1956	22%	20.13″
Sep 10	0.04″	0.46″	1930	20%	20.17″
Sep 11	0.05″	0.40″	1941	17%	20.22″
Sep 12	0.04″	0.49″	1955	21%	20.26″
Sep 13	0.04″	1.30″	1935	26%	20.30″
Sep 14	0.04″	1.47″	1996	30%	20.34″
Sep 15	0.04″	0.53″	1997	26%	20.38″
Sep 16	0.04″	0.73″	1969	28%	20.42″
Sep 17	0.04″	1.24″	2021	35%	20.47″
Sep 18	0.05″	1.12″	1968	29%	20.51″
Sep 19	0.05″	1.18″	1982	23%	20.56″
Sep 20	0.05″	0.77″	1982	23%	20.62″
Sep 21	0.06″	1.16″	1972	25%	20.67″
Sep 22	0.06″	0.64″	2014	19%	20.73″
Sep 23	0.06″	0.78″	1973	21%	20.79″
Sep 24	0.06″	0.94″	2023	31%	20.84″
Sep 25	0.06″	0.82″	2020	26%	20.90″
Sep 26	0.06″	1.01″	1981	25%	20.95″
Sep 27	0.06″	1.73″	2013	30%	21.01″
Sep 28	0.06″	1.39″	2013	30%	21.07″
Sep 29	0.06″	1.28″	2005	28%	21.13″
Sep 30	0.06″	0.79″	1997	27%	21.19″
Oct 1	0.07″	0.56″	1951	34%	21.26″
Oct 2	0.08″	1.22″	1938	26%	21.34″
Oct 3	0.07″	0.78″	1939	33%	21.41″
Oct 4	0.08″	0.90″	1950	36%	21.49″
Oct 5	0.07″	0.99″	1981	33%	21.57″
Oct 6	0.08″	0.77″	1962	36%	21.65″
Oct 7	0.08″	0.57″	1950	34%	21.73″
Oct 8	0.08″	2.26″	1955	31%	21.81″
Oct 9	0.08″	1.10″	1995	43%	21.88″
Oct 10	0.08″	0.96″	1962	40%	21.96″
Oct 11	0.08″	0.83″	1968	38%	22.04″
Oct 12	0.08″	0.96″	2012	38%	22.13″
Oct 13	0.09″	2.05″	2016	33%	22.22″
Oct 14	0.10″	1.02″	1947	34%	22.31″
Oct 15	0.10″	0.70″	1947	34%	22.41″
Oct 16	0.09″	0.83″	1947	41%	22.50″
Oct 17	0.09″	0.69″	1958	35%	22.59″
Oct 18	0.10″	1.13″	1979	45%	22.69″
Oct 19	0.11″	1.12″	1946	49%	22.80″
Oct 20	0.11″	2.04″	2017	45%	22.91″
Oct 21	0.11″	1.22″	2014	51%	23.02″
Oct 22	0.12″	1.77″	1951	50%	23.14″
Oct 23	0.13″	2.27″	1943	48%	23.26″
Oct 24	0.13″	0.90″	1940	48%	23.40″
Oct 25	0.14″	2.60″	1994	55%	23.54″
Oct 26	0.14″	1.23″	2018	51%	23.68″
Oct 27	0.14″	0.87″	1974	57%	23.82″
Oct 28	0.14″	1.80″	1982	55%	23.96″
Oct 29	0.15″	0.82″	2001	53%	24.12″
Oct 30	0.16″	1.96″	1994	55%	24.28″
Oct 31	0.16″	1.35″	1934	54%	24.44″
Nov 1	0.16″	1.71″	2006	51%	24.60″
Nov 2	0.16″	1.91″	1984	59%	24.75″
Nov 3	0.15″	1.98″	2022	58%	24.90″
Nov 4	0.15″	1.37″	1934	65%	25.06″
Nov 5	0.16″	2.30″	2006	65%	25.21″
Nov 6	0.15″	1.70″	1931	64%	25.36″
Nov 7	0.14″	1.92″	1937	62%	25.51″
Nov 8	0.14″	1.78″	1973	61%	25.65″
Nov 9	0.15″	1.90″	1995	60%	25.80″
Nov 10	0.15″	1.60″	1962	59%	25.95″
Nov 11	0.17″	1.42″	1941	58%	26.12″
Nov 12	0.17″	1.43″	1965	65%	26.29″
Nov 13	0.17″	1.30″	1981	60%	26.46″
Nov 14	0.18″	2.69″	1973	66%	26.64″
Nov 15	0.18″	1.29″	1950	65%	26.83″
Nov 16	0.19″	1.23″	1954	68%	27.02″
Nov 17	0.20″	2.10″	1946	72%	27.22″
Nov 18	0.21″	3.40″	1996	74%	27.43″
Nov 19	0.20″	2.03″	2012	57%	27.63″
Nov 20	0.21″	1.65″	1974	58%	27.84″
Nov 21	0.21″	2.09″	2011	63%	28.04″
Nov 22	0.21″	1.73″	1942	57%	28.26″
Nov 23	0.22″	1.19″	1983	65%	28.48″
Nov 24	0.22″	2.80″	1962	70%	28.70″
Nov 25	0.23″	2.70″	1945	70%	28.93″
Nov 26	0.21″	1.09″	1945	62%	29.13″
Nov 27	0.20″	1.79″	2001	60%	29.34″
Nov 28	0.20″	1.53″	1984	62%	29.54″
Nov 29	0.20″	1.36″	2001	61%	29.73″
Nov 30	0.20″	1.30″	1993	65%	29.93″
Dec 1	0.19″	2.15″	2007	69%	30.12″
Dec 2	0.19″	2.07″	2007	61%	30.32″
Dec 3	0.20″	1.51″	1980	65%	30.52″
Dec 4	0.21″	2.01″	1968	62%	30.73″
Dec 5	0.21″	2.16″	1933	71%	30.95″
Dec 6	0.22″	1.98″	2015	63%	31.17″
Dec 7	0.22″	1.38″	2015	62%	31.38″
Dec 8	0.21″	1.27″	1993	69%	31.60″
Dec 9	0.21″	1.69″	1995	65%	31.81″
Dec 10	0.21″	1.59″	1968	58%	32.01″
Dec 11	0.21″	1.38″	1959	63%	32.23″
Dec 12	0.22″	1.93″	1977	57%	32.45″
Dec 13	0.22″	1.76″	2006	70%	32.67″
Dec 14	0.22″	1.53″	1939	67%	32.89″
Dec 15	0.21″	2.58″	1982	59%	33.10″
Dec 16	0.21″	1.75″	2015	56%	33.31″
Dec 17	0.20″	1.97″	2025	65%	33.51″
Dec 18	0.19″	2.37″	1941	61%	33.71″
Dec 19	0.20″	1.65″	1932	71%	33.90″
Dec 20	0.20″	2.81″	1955	68%	34.10″
Dec 21	0.19″	1.87″	1972	76%	34.29″
Dec 22	0.19″	1.70″	1936	75%	34.48″
Dec 23	0.19″	1.42″	1965	72%	34.67″
Dec 24	0.19″	0.86″	1964	67%	34.86″
Dec 25	0.20″	2.50″	2022	65%	35.06″
Dec 26	0.19″	3.31″	1937	66%	35.25″
Dec 27	0.18″	1.34″	1945	70%	35.43″
Dec 28	0.18″	2.04″	1937	67%	35.61″
Dec 29	0.18″	1.70″	1983	60%	35.79″
Dec 30	0.18″	0.80″	2009	60%	35.97″
Dec 31	0.18″	1.56″	1996	75%	36.16″

Records & forecast → Hillsboro station Every Day of the Year → national almanac

Data: NOAA/NWS ThreadEx (RCC-ACIS) · normals 1991–2020 (or full record) · part of Weather Trader