Keshan Threshold Days by Year (CHM00050658)

15 fixed thresholds counted per year at Keshan (CHM00050658): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Keshan Thresholds

Keshan: days with a maximum temperature at or below 0 C (32 F) in 75 years, most in 2009 with 144.
Keshan: days with a maximum temperature at or above 30 C (86 F) in 74 years, most in 1982 with 37.
Keshan: nights with a minimum temperature at or below 0 C (32 F) in 68 years, most in 1954 with 213.
Keshan: nights with a minimum temperature at or below -10 C (14 F) in 68 years, most in 1976 with 150.
15 fixed thresholds have at least one qualifying day at Keshan.

Days at or above 30 C (86 F)

74 years with a qualifying day

Days per year at Keshan with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 37 in 1982.

Days at or above 30 C (86 F) per year at Keshan
Year	Days	Decade average
1951	21	11.8
1952	11	11.8
1953	8	11.8
1954	20	11.8
1955	20	11.8
1956	5	11.8
1957	2	11.8
1958	12	11.8
1959	7	11.8
1960	7	10.5
1961	8	10.5
1962	7	10.5
1963	7	10.5
1964	11	10.5
1965	14	10.5
1966	4	10.5
1967	8	10.5
1968	28	10.5
1969	11	10.5
1970	13	11.9
1971	12	11.9
1972	6	11.9
1973	11	11.9
1974	14	11.9
1975	9	11.9
1976	18	11.9
1977	14	11.9
1978	12	11.9
1979	10	11.9
1980	16	11.9
1981	11	11.9
1982	37	11.9
1983	3	11.9
1984	6	11.9
1985	7	11.9
1986	5	11.9
1987	8	11.9
1988	16	11.9
1989	10	11.9
1990	10	13.4
1991	9	13.4
1992	12	13.4
1994	20	13.4
1995	12	13.4
1996	16	13.4
1997	17	13.4
1998	6	13.4
1999	19	13.4
2000	34	16.4
2001	22	16.4
2002	10	16.4
2003	9	16.4
2004	24	16.4
2005	7	16.4
2006	11	16.4
2007	21	16.4
2008	19	16.4
2009	7	16.4
2010	25	13.9
2011	15	13.9
2012	12	13.9
2013	11	13.9
2014	10	13.9
2015	13	13.9
2016	20	13.9
2017	24	13.9
2018	7	13.9
2019	2	13.9
2020	20	15.8
2021	15	15.8
2022	10	15.8
2023	11	15.8
2024	17	15.8
2025	22	15.8

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

First to last qualifying date each year at Keshan
Year	First date	Last date
1951	1951-05-26	1951-08-10
1952	1952-05-13	1952-08-12
1953	1953-06-15	1953-08-07
1954	1954-06-27	1954-08-30
1955	1955-06-06	1955-08-24
1956	1956-05-26	1956-08-05
1957	1957-05-15	1957-06-15
1958	1958-06-06	1958-07-18
1959	1959-05-19	1959-07-28
1960	1960-07-13	1960-08-06
1961	1961-06-01	1961-07-11
1962	1962-05-19	1962-07-13
1963	1963-06-16	1963-08-03
1964	1964-05-13	1964-08-03
1965	1965-05-27	1965-08-26
1966	1966-05-17	1966-08-01
1967	1967-06-14	1967-08-06
1968	1968-06-02	1968-08-15
1969	1969-05-02	1969-07-20
1970	1970-06-01	1970-08-24
1971	1971-06-19	1971-07-25
1972	1972-05-23	1972-07-18
1973	1973-06-29	1973-08-08
1974	1974-05-17	1974-08-18
1975	1975-05-26	1975-08-20
1976	1976-05-14	1976-07-22
1977	1977-05-09	1977-08-29
1978	1978-06-07	1978-08-18
1979	1979-05-20	1979-07-09
1980	1980-06-24	1980-08-21
1981	1981-05-20	1981-07-27
1982	1982-06-02	1982-08-15
1983	1983-07-06	1983-08-12
1984	1984-06-17	1984-08-05
1985	1985-05-15	1985-07-04
1986	1986-05-05	1986-06-13
1987	1987-05-28	1987-07-28
1988	1988-06-09	1988-08-11
1989	1989-06-07	1989-08-10
1990	1990-05-17	1990-08-01
1991	1991-05-20	1991-08-14
1992	1992-05-29	1992-07-16
1994	1994-06-01	1994-08-31
1995	1995-06-05	1995-08-08
1996	1996-05-15	1996-07-17
1997	1997-05-13	1997-07-22
1998	1998-05-14	1998-07-15
1999	1999-05-21	1999-08-08
2000	2000-06-03	2000-09-03
2001	2001-05-12	2001-08-12
2002	2002-05-20	2002-07-10
2003	2003-05-21	2003-06-27
2004	2004-06-10	2004-08-25
2005	2005-06-27	2005-08-14
2006	2006-05-29	2006-08-25
2007	2007-06-11	2007-08-19
2008	2008-06-11	2008-08-16
2009	2009-05-20	2009-08-09
2010	2010-05-23	2010-09-14
2011	2011-06-15	2011-07-26
2012	2012-05-21	2012-08-07
2013	2013-05-31	2013-08-01
2014	2014-05-31	2014-07-02
2015	2015-06-15	2015-08-14
2016	2016-05-18	2016-08-12
2017	2017-05-09	2017-07-31
2018	2018-05-31	2018-07-22
2019	2019-06-24	2019-07-09
2020	2020-05-30	2020-07-26
2021	2021-05-21	2021-07-24
2022	2022-06-29	2022-08-05
2023	2023-05-24	2023-08-02
2024	2024-06-27	2024-07-31
2025	2025-05-27	2025-07-27

Every Fixed Threshold

Fixed thresholds at Keshan
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	74	37	1982	22
35 C (95 F): Days	20	5	2001	1
90 F (32.2 C): Days	59	16	2000	8
100 F (37.8 C): Days	3	2	2001	2
0 C (32 F): Ice days (max	75	144	2009	71
0 C (32 F): Frost days (min	68	213	1954	94
-10 C (14 F): Days with min	68	150	1976	76
-20 C (-4 F): Days with min	68	113	1969	53
-30 C (-22 F): Days with min	64	60	1952	7
-40 C (-40 F): Days with min	4	11	1951	1
20 C (68 F): Tropical nights (min	62	19	2011	12
10 mm (0.39 in): Days with 10 mm or more rain	65	27	1998	8
25 mm (0.98 in): Days with 25 mm or more rain	61	9	1998	2
50 mm (1.97 in): Days with 50 mm or more rain	38	4	2009	1
100 mm (3.94 in): Days with 100 mm or more rain	5	1	1957	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1951.

Download the Data

Data for Keshan 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).

Keshan Threshold Days by Year (CHM00050658)

Key Facts for Keshan Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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