John Day Threshold Days by Year (USC00354291)

16 fixed thresholds counted per year at John Day (USC00354291): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for John Day Thresholds

John Day: days with 10 mm (0.39 in) or more of precipitation in 68 years, most in 1956 with 13.
John Day: days with a maximum temperature at or above 30 C (86 F) in 67 years, most in 2003 with 83.
John Day: days with a maximum temperature at or above 35 C (95 F) in 67 years, most in 1998 with 36.
John Day: days with a maximum temperature at or above 90 F (32.2 C) in 67 years, most in 1970 with 63.
16 fixed thresholds have at least one qualifying day at John Day.

Days at or above 30 C (86 F)

67 years with a qualifying day

Days per year at John Day with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 83 in 2003.

Days at or above 30 C (86 F) per year at John Day
Year	Days	Decade average
1954	51	60.2
1955	67	60.2
1956	58	60.2
1957	52	60.2
1958	77	60.2
1959	56	60.2
1960	72	60.3
1961	75	60.3
1962	57	60.3
1963	61	60.3
1964	45	60.3
1965	40	60.3
1966	56	60.3
1967	82	60.3
1968	52	60.3
1969	63	60.3
1970	76	62.7
1971	60	62.7
1972	64	62.7
1974	78	62.7
1975	61	62.7
1976	46	62.7
1977	68	62.7
1978	44	62.7
1979	67	62.7
1980	49	59.3
1981	66	59.3
1982	49	59.3
1983	46	59.3
1984	57	59.3
1985	53	59.3
1986	67	59.3
1987	76	59.3
1988	80	59.3
1989	50	59.3
1990	66	62.4
1991	65	62.4
1992	67	62.4
1993	35	62.4
1994	81	62.4
1995	55	62.4
1996	64	62.4
1997	65	62.4
1998	63	62.4
1999	63	62.4
2000	57	63.1
2002	67	63.1
2003	83	63.1
2004	55	63.1
2005	59	63.1
2006	69	63.1
2007	71	63.1
2008	62	63.1
2009	45	63.1
2010	56	51.8
2011	63	51.8
2012	67	51.8
2013	56	51.8
2014	51	51.8
2016	41	51.8
2018	40	51.8
2019	40	51.8
2020	45	55
2021	63	55
2022	60	55
2023	42	55
2025	65	55

For each year, a bar from the first to the last day at John Day meeting 30 C (86 F).

First to last qualifying date each year at John Day
Year	First date	Last date
1954	1954-05-04	1954-09-22
1955	1955-05-30	1955-09-14
1956	1956-05-18	1956-09-26
1957	1957-06-01	1957-09-26
1958	1958-05-17	1958-10-15
1959	1959-05-14	1959-09-14
1960	1960-05-11	1960-09-27
1961	1961-05-26	1961-10-16
1962	1962-04-19	1962-09-27
1963	1963-05-21	1963-10-03
1964	1964-06-24	1964-10-13
1965	1965-06-06	1965-10-09
1966	1966-05-03	1966-09-23
1967	1967-05-21	1967-09-29
1968	1968-06-17	1968-09-26
1969	1969-05-09	1969-09-13
1970	1970-05-17	1970-10-05
1971	1971-06-21	1971-10-10
1972	1972-05-29	1972-09-05
1974	1974-06-11	1974-10-18
1975	1975-05-15	1975-10-03
1976	1976-05-14	1976-10-14
1977	1977-04-24	1977-09-14
1978	1978-06-04	1978-09-27
1979	1979-05-23	1979-10-07
1980	1980-05-21	1980-10-08
1981	1981-05-30	1981-09-19
1982	1982-06-16	1982-09-24
1983	1983-05-24	1983-09-26
1984	1984-05-29	1984-09-19
1985	1985-05-23	1985-08-30
1986	1986-05-26	1986-09-08
1987	1987-04-27	1987-10-07
1988	1988-05-12	1988-10-09
1989	1989-06-06	1989-09-29
1990	1990-05-06	1990-09-25
1991	1991-06-11	1991-10-16
1992	1992-05-05	1992-10-02
1993	1993-05-12	1993-10-04
1994	1994-05-10	1994-09-28
1995	1995-05-31	1995-09-18
1996	1996-06-03	1996-10-10
1997	1997-05-11	1997-09-30
1998	1998-06-30	1998-09-18
1999	1999-05-24	1999-09-24
2000	2000-05-22	2000-09-28
2002	2002-05-30	2002-09-24
2003	2003-05-24	2003-10-22
2004	2004-06-04	2004-09-29
2005	2005-05-28	2005-09-09
2006	2006-05-15	2006-09-30
2007	2007-05-09	2007-09-15
2008	2008-05-17	2008-10-02
2009	2009-05-18	2009-09-29
2010	2010-06-24	2010-10-03
2011	2011-06-23	2011-10-01
2012	2012-04-23	2012-09-22
2013	2013-05-13	2013-09-16
2014	2014-07-02	2014-09-22
2016	2016-06-05	2016-09-28
2018	2018-06-04	2018-09-08
2019	2019-06-13	2019-09-15
2020	2020-05-29	2020-10-02
2021	2021-06-02	2021-09-10
2022	2022-06-27	2022-09-28
2023	2023-04-30	2023-09-17
2025	2025-05-26	2025-09-29

Every Fixed Threshold

Fixed thresholds at John Day
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	67	83	2003	65
35 C (95 F): Days	67	36	1998	19
40 C (104 F): Days	20	6	1979	1
90 F (32.2 C): Days	67	63	1970	36
100 F (37.8 C): Days	53	14	1971	5
110 F (43.3 C): Days	2	1	1961	1
0 C (32 F): Ice days (max	66	45	1985	5
0 C (32 F): Frost days (min	66	194	1971	117
-10 C (14 F): Days with min	66	60	1985	17
-20 C (-4 F): Days with min	31	9	1972	1
-30 C (-22 F): Days with min	4	2	1962	2
20 C (68 F): Tropical nights (min	1	1	2002	1
10 mm (0.39 in): Days with 10 mm or more rain	68	13	1956	6
25 mm (0.98 in): Days with 25 mm or more rain	15	2	1971	1
50 mm (1.97 in): Days with 50 mm or more rain	1	1	1993	1
10 cm (3.9 in): Days with 10 cm or more snowfall	27	4	1956	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1954.

Download the Data

Data for John Day threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

John Day Threshold Days by Year (USC00354291)

Key Facts for John Day Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related