Nanjing Threshold Days by Year (CHM00058238)

15 fixed thresholds counted per year at Nanjing (CHM00058238): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Nanjing Thresholds

Nanjing: days with 10 mm (0.39 in) or more of precipitation in 68 years, most in 2003 with 45.
Nanjing: days with 25 mm (0.98 in) or more of precipitation in 68 years, most in 1991 with 21.
Nanjing: days with a maximum temperature at or above 30 C (86 F) in 63 years, most in 1978 with 99.
Nanjing: days with a maximum temperature at or above 35 C (95 F) in 63 years, most in 1966 with 37.
15 fixed thresholds have at least one qualifying day at Nanjing.

Days at or above 30 C (86 F)

63 years with a qualifying day

Days per year at Nanjing with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 99 in 1978.

Days at or above 30 C (86 F) per year at Nanjing
Year	Days	Decade average
1951	69	69.3
1952	52	69.3
1953	90	69.3
1954	44	69.3
1955	88	69.3
1956	65	69.3
1957	54	69.3
1958	78	69.3
1959	84	69.3
1960	78	79.3
1961	93	79.3
1962	60	79.3
1963	70	79.3
1964	88	79.3
1965	77	79.3
1966	76	79.3
1967	98	79.3
1968	80	79.3
1969	73	79.3
1970	68	70.8
1971	79	70.8
1972	65	70.8
1973	67	70.8
1974	62	70.8
1975	79	70.8
1976	54	70.8
1977	62	70.8
1978	99	70.8
1979	73	70.8
1980	45	63
1981	72	63
1982	64	63
1983	62	63
1984	69	63
1985	73	63
1986	69	63
1987	63	63
1988	67	63
1989	46	63
1990	84	73.3
1991	65	73.3
1992	70	73.3
1993	63	73.3
1994	95	73.3
1995	72	73.3
1996	63	73.3
1997	83	73.3
1998	77	73.3
1999	61	73.3
2000	88	80.4
2001	69	80.4
2002	79	80.4
2003	66	80.4
2004	79	80.4
2005	86	80.4
2006	89	80.4
2007	86	80.4
2008	75	80.4
2009	87	80.4
2010	83	81
2011	80	81
2012	80	81
2025	42	42

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

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

Every Fixed Threshold

Fixed thresholds at Nanjing
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	63	99	1978	42
35 C (95 F): Days	63	37	1966	13
40 C (104 F): Days	3	1	1959	1
90 F (32.2 C): Days	63	78	1967	34
100 F (37.8 C): Days	23	9	1966	2
0 C (32 F): Ice days (max	37	12	1955	1
0 C (32 F): Frost days (min	63	81	1969	10
-10 C (14 F): Days with min	15	7	1955	3
20 C (68 F): Tropical nights (min	63	121	2007	43
25 C (77 F): Days with min	63	57	1978	21
10 mm (0.39 in): Days with 10 mm or more rain	68	45	2003	17
25 mm (0.98 in): Days with 25 mm or more rain	68	21	1991	10
50 mm (1.97 in): Days with 50 mm or more rain	63	9	1991	2
100 mm (3.94 in): Days with 100 mm or more rain	29	4	1991	2
200 mm (7.87 in): Days with 200 mm or more rain	1	1	2003	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 Nanjing 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).

Nanjing Threshold Days by Year (CHM00058238)

Key Facts for Nanjing Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related