Corinna Threshold Days by Year (USC00171628)

16 fixed thresholds counted per year at Corinna (USC00171628): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Corinna Thresholds

Corinna: days with a maximum temperature at or above 30 C (86 F) in 74 years, most in 1952 with 35.
Corinna: days with a maximum temperature at or below 0 C (32 F) in 74 years, most in 1989 with 86.
Corinna: days with 10 mm (0.39 in) or more of precipitation in 73 years, most in 2005 with 51.
Corinna: days with 25 mm (0.98 in) or more of precipitation in 73 years, most in 2005 with 23.
16 fixed thresholds have at least one qualifying day at Corinna.

Days at or above 30 C (86 F)

74 years with a qualifying day

Days per year at Corinna with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 35 in 1952.

Days at or above 30 C (86 F) per year at Corinna
Year	Days	Decade average
1950	8	14.1
1951	12	14.1
1952	35	14.1
1953	18	14.1
1954	3	14.1
1955	29	14.1
1956	7	14.1
1957	10	14.1
1958	5	14.1
1960	10	10
1961	14	10
1962	9	10
1963	16	10
1964	7	10
1965	13	10
1966	8	10
1967	5	10
1968	8	10
1969	10	10
1970	21	15.8
1971	9	15.8
1972	9	15.8
1973	18	15.8
1974	6	15.8
1976	18	15.8
1977	18	15.8
1978	23	15.8
1979	20	15.8
1980	16	13.5
1981	6	13.5
1982	13	13.5
1983	17	13.5
1984	20	13.5
1985	13	13.5
1986	5	13.5
1987	8	13.5
1988	25	13.5
1989	12	13.5
1990	15	13.2
1991	18	13.2
1992	4	13.2
1993	20	13.2
1994	11	13.2
1995	20	13.2
1996	5	13.2
1997	10	13.2
1998	10	13.2
1999	19	13.2
2000	5	14.3
2001	28	14.3
2002	26	14.3
2003	12	14.3
2004	6	14.3
2005	23	14.3
2006	11	14.3
2008	6	14.3
2009	12	14.3
2010	27	17.6
2011	11	17.6
2012	18	17.6
2013	20	17.6
2014	15	17.6
2015	16	17.6
2016	19	17.6
2017	18	17.6
2018	24	17.6
2019	8	17.6
2020	27	20.9
2021	16	20.9
2022	21	20.9
2023	19	20.9
2024	18	20.9
2025	27	20.9
2026	18	20.9

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

First to last qualifying date each year at Corinna
Year	First date	Last date
1950	1950-05-26	1950-08-18
1951	1951-06-20	1951-09-13
1952	1952-07-02	1952-08-29
1953	1953-05-10	1953-09-05
1954	1954-06-21	1954-08-25
1955	1955-05-22	1955-08-22
1956	1956-06-12	1956-08-18
1957	1957-05-09	1957-07-20
1958	1958-07-24	1958-08-31
1960	1960-05-29	1960-09-09
1961	1961-05-14	1961-09-11
1962	1962-05-19	1962-07-09
1963	1963-06-04	1963-07-29
1964	1964-05-24	1964-07-28
1965	1965-06-20	1965-09-23
1966	1966-05-24	1966-08-07
1967	1967-06-03	1967-06-17
1968	1968-07-02	1968-07-19
1969	1969-05-17	1969-09-01
1970	1970-06-02	1970-08-17
1971	1971-06-19	1971-09-04
1972	1972-05-23	1972-07-17
1973	1973-06-11	1973-09-03
1974	1974-06-09	1974-09-12
1976	1976-04-19	1976-08-23
1977	1977-05-18	1977-08-30
1978	1978-05-29	1978-09-22
1979	1979-05-10	1979-08-06
1980	1980-06-25	1980-09-03
1981	1981-05-26	1981-08-23
1982	1982-05-27	1982-08-17
1983	1983-06-14	1983-09-08
1984	1984-05-27	1984-08-07
1985	1985-07-02	1985-09-20
1986	1986-05-18	1986-07-26
1987	1987-05-31	1987-08-18
1988	1988-05-28	1988-08-12
1989	1989-05-18	1989-09-10
1990	1990-04-28	1990-08-28
1991	1991-05-25	1991-08-31
1992	1992-05-22	1992-08-26
1993	1993-06-15	1993-09-16
1994	1994-05-23	1994-08-02
1995	1995-06-02	1995-08-22
1996	1996-06-12	1996-08-08
1997	1997-06-11	1997-08-12
1998	1998-05-30	1998-08-11
1999	1999-05-31	1999-09-05
2000	2000-06-02	2000-09-02
2001	2001-05-03	2001-09-10
2002	2002-06-28	2002-09-11
2003	2003-05-21	2003-08-22
2004	2004-05-01	2004-08-29
2005	2005-06-05	2005-08-14
2006	2006-05-30	2006-08-03
2008	2008-07-08	2008-09-05
2009	2009-04-29	2009-08-24
2010	2010-05-25	2010-09-04
2011	2011-06-09	2011-08-02
2012	2012-03-23	2012-08-09
2013	2013-06-01	2013-09-12
2014	2014-06-09	2014-09-06
2015	2015-05-27	2015-09-18
2016	2016-06-27	2016-09-10
2017	2017-05-19	2017-09-28
2018	2018-05-03	2018-09-18
2019	2019-07-04	2019-08-01
2020	2020-05-23	2020-08-14
2021	2021-05-27	2021-08-27
2022	2022-05-13	2022-08-31
2023	2023-05-29	2023-09-08
2024	2024-06-06	2024-08-11
2025	2025-06-06	2025-10-08
2026	2026-05-20	2026-08-10

Every Fixed Threshold

Fixed thresholds at Corinna
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	74	35	1952	18
35 C (95 F): Days	16	5	1952	4
90 F (32.2 C): Days	69	20	1952	5
0 C (32 F): Ice days (max	74	86	1989	38
0 C (32 F): Frost days (min	72	209	1978	107
-10 C (14 F): Days with min	72	109	1978	53
-20 C (-4 F): Days with min	72	46	1982	14
-30 C (-22 F): Days with min	46	10	1971	3
20 C (68 F): Tropical nights (min	46	10	2018	2
10 mm (0.39 in): Days with 10 mm or more rain	73	51	2005	16
25 mm (0.98 in): Days with 25 mm or more rain	73	23	2005	3
50 mm (1.97 in): Days with 50 mm or more rain	45	6	2005	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1973	1
10 cm (3.9 in): Days with 10 cm or more snowfall	64	13	1958	2
25 cm (9.8 in): Days with 25 cm or more snowfall	33	5	1969	1
50 cm (19.7 in): Days with 50 cm or more snowfall	1	1	1969	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1950.

Download the Data

Data for Corinna 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Corinna Threshold Days by Year (USC00171628)

Key Facts for Corinna Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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