Yan An Threshold Days by Year (CHM00053845)

14 fixed thresholds counted per year at Yan An (CHM00053845): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Yan An Thresholds

Yan An: days with a maximum temperature at or above 30 C (86 F) in 69 years, most in 1997 with 79.
Yan An: days with a maximum temperature at or above 90 F (32.2 C) in 69 years, most in 1997 with 50.
Yan An: days with a maximum temperature at or below 0 C (32 F) in 69 years, most in 1967 with 52.
Yan An: nights with a minimum temperature at or below 0 C (32 F) in 68 years, most in 1970 with 159.
14 fixed thresholds have at least one qualifying day at Yan An.

Days at or above 30 C (86 F)

69 years with a qualifying day

Days per year at Yan An with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 79 in 1997.

Days at or above 30 C (86 F) per year at Yan An
Year	Days	Decade average
1951	71	52.7
1952	59	52.7
1953	65	52.7
1954	32	52.7
1955	75	52.7
1956	31	52.7
1957	55	52.7
1958	41	52.7
1959	45	52.7
1960	52	47.4
1961	55	47.4
1962	54	47.4
1963	48	47.4
1964	15	47.4
1965	46	47.4
1966	49	47.4
1967	53	47.4
1968	46	47.4
1969	56	47.4
1970	53	47.8
1971	55	47.8
1972	56	47.8
1973	48	47.8
1974	58	47.8
1975	44	47.8
1976	29	47.8
1977	37	47.8
1978	57	47.8
1979	41	47.8
1980	41	37.6
1981	43	37.6
1982	41	37.6
1983	28	37.6
1984	30	37.6
1985	46	37.6
1986	33	37.6
1987	51	37.6
1988	30	37.6
1989	33	37.6
1990	48	52.6
1991	54	52.6
1992	37	52.6
1993	36	52.6
1994	50	52.6
1995	57	52.6
1996	36	52.6
1997	79	52.6
1998	58	52.6
1999	71	52.6
2000	69	60.3
2001	68	60.3
2002	64	60.3
2003	46	60.3
2004	54	60.3
2005	67	60.3
2006	64	60.3
2007	61	60.3
2008	56	60.3
2009	54	60.3
2010	57	42.3
2011	54	42.3
2012	41	42.3
2014	17	42.3
2020	32	56.8
2021	60	56.8
2022	53	56.8
2023	60	56.8
2024	76	56.8
2025	60	56.8

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

First to last qualifying date each year at Yan An
Year	First date	Last date
1951	1951-05-08	1951-09-13
1952	1952-04-16	1952-09-05
1953	1953-05-07	1953-09-07
1954	1954-05-18	1954-09-01
1955	1955-04-10	1955-09-05
1956	1956-05-19	1956-08-08
1957	1957-05-29	1957-08-29
1958	1958-04-17	1958-07-31
1959	1959-05-24	1959-08-23
1960	1960-05-02	1960-09-22
1961	1961-04-28	1961-09-01
1962	1962-04-20	1962-08-23
1963	1963-05-30	1963-08-28
1964	1964-06-05	1964-08-26
1965	1965-05-22	1965-09-21
1966	1966-04-21	1966-08-29
1967	1967-05-22	1967-08-31
1968	1968-04-28	1968-08-16
1969	1969-04-09	1969-09-16
1970	1970-05-20	1970-09-04
1971	1971-04-21	1971-08-15
1972	1972-04-17	1972-09-16
1973	1973-04-24	1973-08-16
1974	1974-05-03	1974-08-25
1975	1975-05-31	1975-08-30
1976	1976-05-23	1976-08-18
1977	1977-05-25	1977-09-04
1978	1978-04-13	1978-08-25
1979	1979-05-21	1979-08-21
1980	1980-05-02	1980-09-01
1981	1981-05-06	1981-08-13
1982	1982-05-21	1982-08-17
1983	1983-05-08	1983-08-31
1984	1984-04-15	1984-08-21
1985	1985-04-29	1985-08-20
1986	1986-05-07	1986-09-23
1987	1987-05-18	1987-09-21
1988	1988-05-02	1988-08-05
1989	1989-05-17	1989-09-17
1990	1990-05-07	1990-08-24
1991	1991-05-13	1991-09-03
1992	1992-04-27	1992-09-04
1993	1993-04-23	1993-08-26
1994	1994-04-29	1994-08-25
1995	1995-05-07	1995-09-05
1996	1996-05-21	1996-09-13
1997	1997-04-30	1997-09-10
1998	1998-04-18	1998-09-13
1999	1999-05-08	1999-09-09
2000	2000-05-02	2000-09-17
2001	2001-05-13	2001-08-25
2002	2002-04-13	2002-09-09
2003	2003-04-16	2003-09-14
2004	2004-04-19	2004-09-01
2005	2005-04-27	2005-09-11
2006	2006-04-29	2006-08-18
2007	2007-05-07	2007-08-25
2008	2008-05-01	2008-09-06
2009	2009-05-05	2009-08-27
2010	2010-05-02	2010-09-20
2011	2011-04-28	2011-09-01
2012	2012-04-28	2012-08-30
2014	2014-05-29	2014-08-03
2020	2020-04-30	2020-08-26
2021	2021-05-09	2021-09-12
2022	2022-04-10	2022-08-22
2023	2023-04-16	2023-09-05
2024	2024-05-14	2024-09-19
2025	2025-04-17	2025-08-21

Every Fixed Threshold

Fixed thresholds at Yan An
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	69	79	1997	60
35 C (95 F): Days	55	18	2001	5
90 F (32.2 C): Days	69	50	1997	33
100 F (37.8 C): Days	6	4	2006	4
0 C (32 F): Ice days (max	69	52	1967	4
0 C (32 F): Frost days (min	68	159	1970	91
-10 C (14 F): Days with min	68	79	1967	42
-20 C (-4 F): Days with min	28	9	1955	2
20 C (68 F): Tropical nights (min	68	30	2010	13
25 C (77 F): Days with min	2	1	1995	1
10 mm (0.39 in): Days with 10 mm or more rain	68	27	1958	10
25 mm (0.98 in): Days with 25 mm or more rain	67	11	2021	3
50 mm (1.97 in): Days with 50 mm or more rain	40	3	1960	1
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1981	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 Yan An 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).

Yan An Threshold Days by Year (CHM00053845)

Key Facts for Yan An Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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