Xian Threshold Days by Year (CHM00057036)

15 fixed thresholds counted per year at Xian (CHM00057036): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Xian Thresholds

Xian: days with a maximum temperature at or above 30 C (86 F) in 58 years, most in 1994 with 103.
Xian: days with a maximum temperature at or above 35 C (95 F) in 58 years, most in 1997 with 61.
Xian: days with a maximum temperature at or above 90 F (32.2 C) in 58 years, most in 1997 with 87.
Xian: nights with a minimum temperature at or below 0 C (32 F) in 58 years, most in 1951 with 116.
15 fixed thresholds have at least one qualifying day at Xian.

Days at or above 30 C (86 F)

58 years with a qualifying day

Days per year at Xian with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 103 in 1994.

Days at or above 30 C (86 F) per year at Xian
Year	Days	Decade average
1951	77	72.8
1952	58	72.8
1953	81	72.8
1954	64	72.8
1955	94	72.8
1956	51	72.8
1957	77	72.8
1958	56	72.8
1959	97	72.8
1960	72	78.2
1961	69	78.2
1962	96	78.2
1963	72	78.2
1964	65	78.2
1965	74	78.2
1966	85	78.2
1967	78	78.2
1968	73	78.2
1969	98	78.2
1970	86	78.7
1971	82	78.7
1972	83	78.7
1973	78	78.7
1974	73	78.7
1975	74	78.7
1976	59	78.7
1977	86	78.7
1978	92	78.7
1979	74	78.7
1980	56	62.9
1981	72	62.9
1982	62	62.9
1983	46	62.9
1984	51	62.9
1985	72	62.9
1986	80	62.9
1987	76	62.9
1988	59	62.9
1989	55	62.9
1990	85	86.2
1991	82	86.2
1992	75	86.2
1993	68	86.2
1994	103	86.2
1995	103	86.2
1996	78	86.2
1997	103	86.2
1998	86	86.2
1999	79	86.2
2000	88	81.2
2001	90	81.2
2002	87	81.2
2003	71	81.2
2004	76	81.2
2005	78	81.2
2006	57	81.2
2007	89	81.2
2008	95	81.2

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

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

Every Fixed Threshold

Fixed thresholds at Xian
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	58	103	1994	95
35 C (95 F): Days	58	61	1997	17
40 C (104 F): Days	16	4	1951	4
90 F (32.2 C): Days	58	87	1997	61
100 F (37.8 C): Days	52	14	1951	3
0 C (32 F): Ice days (max	54	22	1954	20
0 C (32 F): Frost days (min	58	116	1951	71
-10 C (14 F): Days with min	30	14	1955	4
-20 C (-4 F): Days with min	1	1	1955	1
20 C (68 F): Tropical nights (min	58	91	2005	83
25 C (77 F): Days with min	53	25	2005	9
10 mm (0.39 in): Days with 10 mm or more rain	58	31	1983	17
25 mm (0.98 in): Days with 25 mm or more rain	57	14	1983	3
50 mm (1.97 in): Days with 50 mm or more rain	30	4	1957	3
100 mm (3.94 in): Days with 100 mm or more rain	1	1	1991	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 Xian 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).

Xian Threshold Days by Year (CHM00057036)

Key Facts for Xian Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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