Changsha Weather Records (CHM00057687)

Record envelope, standing records and threshold days for Changsha (CHM00057687), China, with 40 years of record.

Key Facts for Changsha

Changsha (CHM00057687) is a weather station in China at 28.23 latitude and 112.87 longitude, 68 m (223 ft) above sea level.
The station reports from 1987 to 2026, 40 years of record.
1,464 records set at Changsha still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Changsha set a daily record precipitation of 35.0 mm (1.4 in) on 17 September 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: China, 28.23 latitude, 112.87 longitude.
Elevation: 68 m (223 ft).
Period of record: 1987 to 2026, 40 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

4 days at or beyond a record

The band shows the record high and record low for each calendar day at Changsha. The lines show the 2026 daily maximum and minimum. 4 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Changsha, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	26.9 C (80.4 F)	-6.6 C (20.1 F)	21.8 C (71.2 F)	-3.5 C (25.7 F)
Feb	30.6 C (87.1 F)	-8.5 C (16.7 F)	24.8 C (76.6 F)	0.8 C (33.4 F)
Mar	32.7 C (90.9 F)	-1.2 C (29.8 F)	22.0 C (71.6 F)	6.0 C (42.8 F)
Apr	36.1 C (97.0 F)	1.9 C (35.4 F)	30.2 C (86.4 F)	9.9 C (49.8 F)
May	36.2 C (97.2 F)	10.6 C (51.1 F)	34.4 C (93.9 F)	15.6 C (60.1 F)
Jun	37.6 C (99.7 F)	13.1 C (55.6 F)	33.3 C (91.9 F)	16.5 C (61.7 F)
Jul	40.4 C (104.7 F)	18.9 C (66.0 F)	36.5 C (97.7 F)	24.0 C (75.2 F)
Aug	40.6 C (105.1 F)	17.3 C (63.1 F)	34.7 C (94.5 F)	20.9 C (69.6 F)
Sep	39.5 C (103.1 F)	11.8 C (53.2 F)	31.4 C (88.5 F)	18.4 C (65.1 F)
Oct	38.5 C (101.3 F)	5.0 C (41.0 F)	n/a	n/a
Nov	33.4 C (92.1 F)	-1.6 C (29.1 F)	n/a	n/a
Dec	24.1 C (75.4 F)	-10.3 C (13.5 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Changsha still stand. 1987 holds the most, with 72.

Standing records at Changsha by the year they were set
Year set	Standing records
1987	72
1988	47
1989	39
1990	21
1991	31
1992	44
1993	44
1994	40
1995	15
1996	28
1997	31
1998	42
1999	41
2000	25
2001	17
2002	43
2003	56
2004	38
2005	42
2006	37
2007	40
2008	41
2009	72
2010	57
2011	54
2012	18
2013	37
2014	35
2015	14
2016	16
2017	4
2018	9
2019	9
2020	32
2021	47
2022	65
2023	39
2024	52
2025	52
2026	18

All-Time Record Progression

1 new records

1 all-time records were set at Changsha between 21 January 2026 and 21 January 2026. Each dot is a new record.

Wettest Day of Each Month

Jun: 249.5 mm (9.8 in)

The wettest day on record for each calendar month at Changsha. The most was 249.5 mm (9.8 in) on 7 June 1997.

Record daily precipitation for each month at Changsha
Month	Record daily precipitation (mm)	Date
Jan	39.1 mm (1.5 in)	28 January 2022
Feb	51.0 mm (2.0 in)	16 February 1989
Mar	52.8 mm (2.1 in)	21 March 1992
Apr	105.9 mm (4.2 in)	29 April 2024
May	127.8 mm (5.0 in)	21 May 2010
Jun	249.5 mm (9.8 in)	7 June 1997
Jul	196.6 mm (7.7 in)	28 July 2024
Aug	95.8 mm (3.8 in)	18 August 2014
Sep	116.3 mm (4.6 in)	4 September 2008
Oct	58.5 mm (2.3 in)	4 October 1995
Nov	74.8 mm (2.9 in)	1 November 2008
Dec	58.8 mm (2.3 in)	12 December 2010

Period of Record Coverage

1987 to 2026

40 years of record at Changsha, 1987 to 2026. 7 years have data for under 90 percent of days and are left out of rankings: 2013, 2015, 2016, 2017, 2018, 2019, 2026.

Days with data per year at Changsha
Year	Days with data	Share of year	Complete
1987	365	100%	Yes
1988	366	100%	Yes
1989	365	100%	Yes
1990	365	100%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	365	100%	Yes
1994	365	100%	Yes
1995	365	100%	Yes
1996	366	100%	Yes
1997	365	100%	Yes
1998	365	100%	Yes
1999	365	100%	Yes
2000	366	100%	Yes
2001	365	100%	Yes
2002	365	100%	Yes
2003	365	100%	Yes
2004	366	100%	Yes
2005	365	100%	Yes
2006	365	100%	Yes
2007	365	100%	Yes
2008	366	100%	Yes
2009	365	100%	Yes
2010	365	100%	Yes
2011	365	100%	Yes
2012	366	100%	Yes
2013	171	47%	No
2014	358	98%	Yes
2015	81	22%	No
2016	1	0%	No
2017	2	1%	No
2018	27	7%	No
2019	72	20%	No
2020	362	99%	Yes
2021	358	98%	Yes
2022	359	98%	Yes
2023	346	95%	Yes
2024	344	94%	Yes
2025	352	96%	Yes
2026	213	58%	No

Latest Records

Latest records at Changsha
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 September 2026	Changsha, CN	daily rain (Provisional)	35.0 mm (1.4 in)	8.6 mm (0.34 in)	27 years	17 of 100 (Routine)
17 September 2026	Changsha, CN	daily low max (Provisional)	21.8 C (71.2 F)	0.1 C (0.2 F)	32 years	13 of 100 (Routine)
16 September 2026	Changsha, CN	daily rain (Provisional)	84.9 mm (3.3 in)	64.3 mm (2.5 in)	5 years	45 of 100 (Notable)
3 September 2026	Changsha, CN	daily low max (Provisional)	21.8 C (71.2 F)	2.1 C (3.8 F)	19 years	13 of 100 (Routine)
3 September 2026	Changsha, CN	daily low min (Provisional)	18.9 C (66.0 F)	0.7 C (1.3 F)	12 years	9 of 100 (Routine)
2 September 2026	Changsha, CN	daily low min (Provisional)	19.0 C (66.2 F)	0.1 C (0.2 F)	23 years	10 of 100 (Routine)
1 September 2026	Changsha, CN	daily low max (Provisional)	22.4 C (72.3 F)	0.8 C (1.4 F)	23 years	11 of 100 (Routine)
19 July 2026	Changsha, CN	daily low max	26.6 C (79.9 F)	1.1 C (2.0 F)	25 years	14 of 100 (Routine)
11 July 2026	Changsha, CN	daily high min	29.2 C (84.6 F)	0.4 C (0.7 F)	13 years	9 of 100 (Routine)
23 June 2026	Changsha, CN	daily low max	22.2 C (72.0 F)	0.8 C (1.4 F)	0 years	6 of 100 (Routine)
13 June 2026	Changsha, CN	daily low max	20.9 C (69.6 F)	2.7 C (4.9 F)	19 years	16 of 100 (Routine)
8 June 2026	Changsha, CN	daily low max	18.3 C (64.9 F)	3.7 C (6.7 F)	28 years	22 of 100 (Routine)
24 May 2026	Changsha, CN	daily high min	28.0 C (82.4 F)	0.5 C (0.9 F)	35 years	15 of 100 (Routine)
12 April 2026	Changsha, CN	daily high min	19.2 C (66.6 F)	0.3 C (0.5 F)	3 years	4 of 100 (Routine)
22 February 2026	Changsha, CN	daily high min	16.5 C (61.7 F)	3.5 C (6.3 F)	16 years	17 of 100 (Routine)
3 February 2026	Changsha, CN	daily high min	9.1 C (48.4 F)	2.0 C (3.6 F)	6 years	10 of 100 (Routine)
21 January 2026	Changsha, CN	all-time low max	-2.6 C (27.3 F)	0.4 C (0.7 F)	17 years	29 of 100 (Routine)
21 January 2026	Changsha, CN	daily low min	-3.4 C (25.9 F)	0.2 C (0.4 F)	32 years	13 of 100 (Routine)
20 January 2026	Changsha, CN	daily low min	-3.5 C (25.7 F)	1.1 C (2.0 F)	28 years	15 of 100 (Routine)
20 January 2026	Changsha, CN	daily low max	-2.0 C (28.4 F)	2.3 C (4.1 F)	18 years	13 of 100 (Routine)

Climate Trend

32 complete years, 1987 to 2025

One stripe for each of 32 complete years at Changsha, 1987 to 2025. Blue stripes are years cooler than the station's own mean of 18.3 C (64.9 F); red stripes are warmer. The coolest year was 1989, at 17.1 C (62.7 F), and the warmest was 2007, at 19.4 C (66.9 F). The strongest colour marks a difference of 1.3 C (2.3 F).

Annual mean temperature at Changsha as warming stripes, 1987 to 2025
Year	Annual mean temperature	Difference from the station mean
1987	17.8 C	-0.46 C
1988	17.5 C	-0.76 C
1989	17.1 C	-1.21 C
1990	17.9 C	-0.41 C
1991	17.4 C	-0.87 C
1992	17.7 C	-0.54 C
1993	17.1 C	-1.18 C
1994	17.8 C	-0.48 C
1995	18.0 C	-0.32 C
1996	17.5 C	-0.81 C
1997	17.7 C	-0.54 C
1998	18.6 C	+0.37 C
1999	18.1 C	-0.21 C
2000	17.7 C	-0.61 C
2001	18.2 C	-0.11 C
2002	18.4 C	+0.10 C
2003	18.2 C	-0.05 C
2004	18.9 C	+0.67 C
2005	18.3 C	+0.04 C
2006	19.1 C	+0.85 C
2007	19.4 C	+1.14 C
2008	18.9 C	+0.64 C
2009	19.0 C	+0.77 C
2010	18.8 C	+0.49 C
2011	18.4 C	+0.15 C
2012	18.1 C	-0.20 C
2020	18.2 C	-0.06 C
2021	18.9 C	+0.58 C
2022	18.7 C	+0.44 C
2023	19.1 C	+0.83 C
2024	19.1 C	+0.80 C
2025	19.4 C	+1.09 C

The annual mean temperature here has risen by 0.4 C (0.3 to 0.6) per decade over 1987 to 2025. In Fahrenheit: 0.8 F (0.5 to 1.0) per decade. The slope is a straight line fitted to 32 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Changsha
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.4 C (0.3 to 0.6) per decade	0.8 F (0.5 to 1.0) per decade	1987 to 2025	32	Rise
Mean daily maximum	0.6 C (0.5 to 0.8) per decade	1.2 F (0.8 to 1.5) per decade	1987 to 2025	32	Rise
Mean daily minimum	0.24 C (0.04 to 0.44) per decade	0.4 F (0.1 to 0.8) per decade	1987 to 2025	32	Rise

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1987 to 2026

Yearly extremes at Changsha: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	40.6 C (105.1 F)	2003	38.1 C (100.6 F)	40
Coldest night (TNn)	-10.3 C (13.5 F)	1991	-3.2 C (26.2 F)	40
Wettest day (Rx1day)	249.5 mm (9.8 in)	1997	85.1 mm (3.4 in)	39
Wettest five days (Rx5day)	535.2 mm (21.1 in)	2017	148.3 mm (5.8 in)	39
Longest dry spell (CDD)	44 days	1987	23 days	39

Hottest day (TXx)

The hottest day of the year at Changsha, 1987 to 2026. The record is 40.6 C (105.1 F) in 2003, marked on the chart; the median year is 38.1 C (100.6 F).

Hottest day (TXx) at Changsha by year
Year	Hottest day (TXx)
1987	36.3 C (97.3 F)
1988	38.5 C (101.3 F)
1989	38.4 C (101.1 F)
1990	38.2 C (100.8 F)
1991	38.8 C (101.8 F)
1992	39.0 C (102.2 F)
1993	36.1 C (97.0 F)
1994	37.6 C (99.7 F)
1995	38.8 C (101.8 F)
1996	36.8 C (98.2 F)
1997	36.7 C (98.1 F)
1998	38.7 C (101.7 F)
1999	36.8 C (98.2 F)
2000	38.8 C (101.8 F)
2001	38.2 C (100.8 F)
2002	38.6 C (101.5 F)
2003	40.6 C (105.1 F)
2004	38.6 C (101.5 F)
2005	38.6 C (101.5 F)
2006	38.0 C (100.4 F)
2007	38.8 C (101.8 F)
2008	38.5 C (101.3 F)
2009	39.6 C (103.3 F)
2010	40.5 C (104.9 F)
2011	39.3 C (102.7 F)
2012	37.7 C (99.9 F)
2013	36.3 C (97.3 F)
2014	38.0 C (100.4 F)
2015	33.1 C (91.6 F)
2016	5.2 C (41.4 F)
2017	18.7 C (65.7 F)
2018	35.8 C (96.4 F)
2019	26.0 C (78.8 F)
2020	37.0 C (98.6 F)
2021	38.0 C (100.4 F)
2022	39.7 C (103.5 F)
2023	37.4 C (99.3 F)
2024	40.4 C (104.7 F)
2025	37.7 C (99.9 F)
2026	36.5 C (97.7 F)

Coldest night (TNn)

The coldest night of the year at Changsha, 1987 to 2026. The record is -10.3 C (13.5 F) in 1991, marked on the chart; the median year is -3.2 C (26.2 F).

Coldest night (TNn) at Changsha by year
Year	Coldest night (TNn)
1987	-2.1 C (28.2 F)
1988	-1.5 C (29.3 F)
1989	-3.4 C (25.9 F)
1990	-8.5 C (16.7 F)
1991	-10.3 C (13.5 F)
1992	-3.0 C (26.6 F)
1993	-4.4 C (24.1 F)
1994	-3.2 C (26.2 F)
1995	-1.8 C (28.8 F)
1996	-3.4 C (25.9 F)
1997	-2.5 C (27.5 F)
1998	-2.4 C (27.7 F)
1999	-4.7 C (23.5 F)
2000	-3.0 C (26.6 F)
2001	-3.4 C (25.9 F)
2002	-2.3 C (27.9 F)
2003	-4.5 C (23.9 F)
2004	-2.5 C (27.5 F)
2005	-4.7 C (23.5 F)
2006	-3.6 C (25.5 F)
2007	-0.5 C (31.1 F)
2008	-4.7 C (23.5 F)
2009	-2.2 C (28.0 F)
2010	-1.7 C (28.9 F)
2011	-2.7 C (27.1 F)
2012	-2.4 C (27.7 F)
2013	-2.7 C (27.1 F)
2014	-3.5 C (25.7 F)
2015	-1.0 C (30.2 F)
2016	-6.6 C (20.1 F)
2017	-1.7 C (28.9 F)
2018	-4.1 C (24.6 F)
2019	-1.9 C (28.6 F)
2020	-3.8 C (25.2 F)
2021	-5.2 C (22.6 F)
2022	-3.3 C (26.1 F)
2023	-4.1 C (24.6 F)
2024	-6.2 C (20.8 F)
2025	-1.7 C (28.9 F)
2026	-3.5 C (25.7 F)

Wettest day (Rx1day)

The wettest day of the year at Changsha, 1987 to 2026. The record is 249.5 mm (9.8 in) in 1997, marked on the chart; the median year is 85.1 mm (3.4 in).

Wettest day (Rx1day) at Changsha by year
Year	Wettest day (Rx1day)
1987	83.7 mm (3.3 in)
1988	82.7 mm (3.3 in)
1989	78.1 mm (3.1 in)
1990	76.4 mm (3.0 in)
1991	68.0 mm (2.7 in)
1992	130.6 mm (5.1 in)
1993	120.1 mm (4.7 in)
1994	88.5 mm (3.5 in)
1995	82.6 mm (3.3 in)
1996	85.1 mm (3.4 in)
1997	249.5 mm (9.8 in)
1998	132.6 mm (5.2 in)
1999	74.6 mm (2.9 in)
2000	93.7 mm (3.7 in)
2001	103.7 mm (4.1 in)
2002	77.1 mm (3.0 in)
2003	45.3 mm (1.8 in)
2004	98.1 mm (3.9 in)
2005	105.1 mm (4.1 in)
2006	58.3 mm (2.3 in)
2007	37.7 mm (1.5 in)
2008	116.5 mm (4.6 in)
2009	80.6 mm (3.2 in)
2010	127.8 mm (5.0 in)
2011	83.4 mm (3.3 in)
2012	67.7 mm (2.7 in)
2013	85.1 mm (3.4 in)
2014	95.8 mm (3.8 in)
2015	79.5 mm (3.1 in)
2016	93.5 mm (3.7 in)
2017	189.0 mm (7.4 in)
2018	76.7 mm (3.0 in)
2019	87.9 mm (3.5 in)
2020	54.1 mm (2.1 in)
2021	66.3 mm (2.6 in)
2022	62.5 mm (2.5 in)
2023	100.6 mm (4.0 in)
2024	196.6 mm (7.7 in)
2025	n/a
2026	101.9 mm (4.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Changsha, 1987 to 2026. The record is 535.2 mm (21.1 in) in 2017, marked on the chart; the median year is 148.3 mm (5.8 in).

Wettest five days (Rx5day) at Changsha by year
Year	Wettest five days (Rx5day)
1987	116.5 mm (4.6 in)
1988	155.0 mm (6.1 in)
1989	178.7 mm (7.0 in)
1990	204.5 mm (8.1 in)
1991	98.6 mm (3.9 in)
1992	186.9 mm (7.4 in)
1993	185.0 mm (7.3 in)
1994	126.8 mm (5.0 in)
1995	159.8 mm (6.3 in)
1996	121.8 mm (4.8 in)
1997	254.9 mm (10.0 in)
1998	271.4 mm (10.7 in)
1999	129.2 mm (5.1 in)
2000	148.3 mm (5.8 in)
2001	138.1 mm (5.4 in)
2002	174.7 mm (6.9 in)
2003	108.5 mm (4.3 in)
2004	144.2 mm (5.7 in)
2005	127.7 mm (5.0 in)
2006	134.6 mm (5.3 in)
2007	74.0 mm (2.9 in)
2008	166.1 mm (6.5 in)
2009	132.9 mm (5.2 in)
2010	182.5 mm (7.2 in)
2011	128.0 mm (5.0 in)
2012	155.0 mm (6.1 in)
2013	184.6 mm (7.3 in)
2014	194.4 mm (7.7 in)
2015	199.4 mm (7.9 in)
2016	221.5 mm (8.7 in)
2017	535.2 mm (21.1 in)
2018	75.1 mm (3.0 in)
2019	156.2 mm (6.1 in)
2020	101.2 mm (4.0 in)
2021	130.3 mm (5.1 in)
2022	118.8 mm (4.7 in)
2023	110.0 mm (4.3 in)
2024	307.6 mm (12.1 in)
2025	n/a
2026	146.0 mm (5.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Changsha, 1987 to 2026. The record is 44 days in 1987, marked on the chart; the median year is 23 days.

Longest dry spell (CDD) at Changsha by year
Year	Longest dry spell (CDD)
1987	44 days
1988	32 days
1989	36 days
1990	33 days
1991	25 days
1992	20 days
1993	29 days
1994	26 days
1995	29 days
1996	20 days
1997	27 days
1998	23 days
1999	31 days
2000	17 days
2001	28 days
2002	17 days
2003	28 days
2004	38 days
2005	29 days
2006	23 days
2007	28 days
2008	25 days
2009	24 days
2010	19 days
2011	18 days
2012	20 days
2013	5 days
2014	8 days
2015	3 days
2016	4 days
2017	5 days
2018	5 days
2019	16 days
2020	13 days
2021	22 days
2022	37 days
2023	18 days
2024	24 days
2025	n/a
2026	6 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

24 years with a frost

Across 24 years with a frost, the median last spring frost at Changsha falls on 8 February and the median first autumn frost on 14 December, which leaves a median of 303 days between them.

Frost dates and growing season at Changsha
Measure	Median, all years	Earliest period	Recent period (1987 to 2024)	Recent against earliest	Fitted trend
Last spring frost	8 February	n/a	8 February	n/a	n/a
First autumn frost	14 December	n/a	14 December	n/a	n/a
Growing days	303 days	n/a	303 days	n/a	n/a

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

31 years, 1987 to 2024

A day with at least 83.7 mm (3.3 in) of rain is expected about once in 2 years. A day with at least 257.7 mm (10.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Changsha: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	83.7 mm (3.3 in)
5 years	116.7 mm (4.6 in)
10 years	143.2 mm (5.6 in)
25 years	182.9 mm (7.2 in)
50 years	217.8 mm (8.6 in)	Longer than the 31 years of record
100 years	257.7 mm (10.1 in)	Longer than the 31 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 31 years of values from 1987 to 2024.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 249.5 mm (9.8 in) in 1997; 196.6 mm (7.7 in) in 2024; 132.6 mm (5.2 in) in 1998.

Download the Data

Data for Changsha standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Changsha 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). Records are computed by this site and are not official.

Data as of 2026-10-17. Last revised 17 October 2026 (2026-10-17).