Record highRecord low2026 daily maximum2026 daily minimum
The band shows the record high and record low for each calendar day at Guangzhou. The lines show the 2026 daily maximum and minimum. 20 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Guangzhou, with 2026 drawn through them
Month
Highest record high
Lowest record low
2026 highest maximum
2026 lowest minimum
Jan
28.4 C (83.1 F)
0.1 C (32.2 F)
25.2 C (77.4 F)
3.0 C (37.4 F)
Feb
29.7 C (85.5 F)
0.0 C (32.0 F)
26.4 C (79.5 F)
5.0 C (41.0 F)
Mar
32.1 C (89.8 F)
3.2 C (37.8 F)
31.5 C (88.7 F)
8.4 C (47.1 F)
Apr
33.5 C (92.3 F)
7.7 C (45.9 F)
33.3 C (91.9 F)
8.5 C (47.3 F)
May
39.0 C (102.2 F)
13.7 C (56.7 F)
33.2 C (91.8 F)
15.0 C (59.0 F)
Jun
38.9 C (102.0 F)
18.8 C (65.8 F)
35.3 C (95.5 F)
22.0 C (71.6 F)
Jul
39.1 C (102.4 F)
21.6 C (70.9 F)
38.0 C (100.4 F)
23.8 C (74.8 F)
Aug
38.7 C (101.7 F)
20.9 C (69.6 F)
35.8 C (96.4 F)
22.3 C (72.1 F)
Sep
37.6 C (99.7 F)
15.5 C (59.9 F)
n/a
n/a
Oct
36.2 C (97.2 F)
9.5 C (49.1 F)
n/a
n/a
Nov
33.4 C (92.1 F)
4.9 C (40.8 F)
n/a
n/a
Dec
29.9 C (85.8 F)
0.0 C (32.0 F)
n/a
n/a
Which Years Hold Standing Records
1,464 standing records
Year with most
1,464 records at Guangzhou still stand. 2010 holds the most, with 44.
Standing records at Guangzhou by the year they were set
Year set
Standing records
1951
32
1952
25
1953
20
1954
12
1955
19
1956
15
1957
13
1958
20
1959
17
1960
35
1961
9
1962
10
1963
15
1964
12
1965
14
1966
24
1967
12
1968
27
1969
27
1970
7
1971
16
1972
15
1973
7
1974
19
1975
30
1976
28
1977
14
1978
13
1979
10
1980
20
1981
25
1982
9
1983
10
1984
17
1985
9
1986
12
1987
35
1988
22
1989
15
1990
17
1991
13
1992
21
1993
17
1994
25
1995
16
1996
28
1997
25
1998
29
1999
10
2000
17
2001
21
2002
25
2003
14
2004
30
2005
42
2006
39
2007
34
2008
39
2009
43
2010
44
2011
15
2012
24
2013
4
2014
8
2015
6
2016
7
2017
3
2018
2
2019
8
2020
24
2021
35
2022
26
2023
22
2024
21
2025
19
All-Time Record Progression
7 new records
7 all-time records were set at Guangzhou between 23 June 1985 and 19 July 2005. Each dot is a new record.
When Guangzhou set new all-time records
Date
Kind
Detail
1985-06-23
Record high minimum temperature
Record high minimum temperature 29.3 C (84.7 F)
1996-02-21
Record low maximum temperature
Record low maximum temperature 4.3 C (39.7 F)
1996-08-02
Record high minimum temperature
Record high minimum temperature 29.4 C (84.9 F)
2004-06-30
Record high maximum temperature
Record high maximum temperature 38.9 C (102.0 F)
2004-07-01
Record high maximum temperature
Record high maximum temperature 39.1 C (102.4 F)
2004-07-01
Record high minimum temperature
Record high minimum temperature 29.5 C (85.1 F)
2005-07-19
Record high minimum temperature
Record high minimum temperature 30.4 C (86.7 F)
Wettest Day of Each Month
Jun: 284.9 mm (11.2 in)
The wettest day on record for each calendar month at Guangzhou. The most was 284.9 mm (11.2 in) on 6 June 1955.
Record daily precipitation for each month at Guangzhou
Month
Record daily precipitation (mm)
Date
Jan
136.9 mm (5.4 in)
28 January 2016
Feb
107.4 mm (4.2 in)
21 February 2019
Mar
165.1 mm (6.5 in)
30 March 2014
Apr
159.0 mm (6.3 in)
20 April 1961
May
218.9 mm (8.6 in)
21 May 2020
Jun
284.9 mm (11.2 in)
6 June 1955
Jul
253.6 mm (10.0 in)
2 July 1961
Aug
239.0 mm (9.4 in)
23 August 1999
Sep
245.9 mm (9.7 in)
6 September 1964
Oct
110.7 mm (4.4 in)
6 October 2000
Nov
116.3 mm (4.6 in)
5 November 1993
Dec
50.8 mm (2.0 in)
20 December 2021
Period of Record Coverage
1951 to 2025
Complete yearUnder 90 percent of days
75 years of record at Guangzhou, 1951 to 2025. 13 years have data for under 90 percent of days and are left out of rankings: 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 and others.
Cooler than the station meanWarmer than the station mean
One stripe for each of 61 complete years at Guangzhou, 1952 to 2012. Blue stripes are years cooler than the station's own mean of 22.7 C (72.9 F); red stripes are warmer. The coolest year was 1984, at 21.8 C (71.3 F), and the warmest was 2007, at 23.9 C (75.0 F). The strongest colour marks a difference of 1.2 C (2.2 F).
Annual mean temperature at Guangzhou as warming stripes, 1952 to 2012
Year
Annual mean temperature
Difference from the station mean
1952
23.0 C
+0.26 C
1953
22.4 C
-0.31 C
1954
22.3 C
-0.41 C
1955
22.4 C
-0.31 C
1956
22.3 C
-0.42 C
1957
22.1 C
-0.63 C
1958
22.5 C
-0.16 C
1959
22.7 C
-0.05 C
1960
22.7 C
+0.04 C
1961
22.5 C
-0.22 C
1962
22.2 C
-0.52 C
1963
22.8 C
+0.06 C
1964
22.6 C
-0.09 C
1965
22.7 C
-0.04 C
1966
23.2 C
+0.49 C
1967
22.1 C
-0.64 C
1968
22.4 C
-0.33 C
1969
21.9 C
-0.81 C
1970
22.1 C
-0.59 C
1971
22.1 C
-0.63 C
1972
22.2 C
-0.46 C
1973
22.7 C
-0.02 C
1974
22.1 C
-0.57 C
1975
22.3 C
-0.36 C
1976
21.8 C
-0.86 C
1977
22.7 C
-0.05 C
1978
22.3 C
-0.38 C
1979
22.3 C
-0.39 C
1980
22.7 C
0.00 C
1981
22.6 C
-0.12 C
1982
22.5 C
-0.22 C
1983
22.2 C
-0.49 C
1984
21.8 C
-0.88 C
1985
22.2 C
-0.50 C
1986
22.7 C
-0.01 C
1987
23.3 C
+0.59 C
1988
22.4 C
-0.29 C
1989
22.9 C
+0.22 C
1990
23.3 C
+0.55 C
1991
23.4 C
+0.67 C
1992
22.6 C
-0.12 C
1993
22.8 C
+0.07 C
1994
23.5 C
+0.80 C
1995
22.9 C
+0.24 C
1996
22.3 C
-0.42 C
1997
22.7 C
-0.05 C
1998
23.4 C
+0.73 C
1999
23.1 C
+0.42 C
2000
22.9 C
+0.21 C
2001
23.1 C
+0.44 C
2002
23.6 C
+0.85 C
2003
23.6 C
+0.89 C
2004
23.6 C
+0.87 C
2005
23.4 C
+0.72 C
2006
23.9 C
+1.18 C
2007
23.9 C
+1.19 C
2008
23.1 C
+0.41 C
2009
23.6 C
+0.88 C
2010
23.1 C
+0.43 C
2011
22.3 C
-0.40 C
2012
22.5 C
-0.22 C
The annual mean temperature here has risen by 0.2 C (0.1 to 0.2) per decade over 1952 to 2012. In Fahrenheit: 0.3 F (0.2 to 0.4) per decade. The slope is a straight line fitted to 61 complete years; the brackets give its 95 percent interval.
Fitted temperature trends per decade at Guangzhou
Measure
Per decade (C)
Per decade (F)
Period
Complete years
Reading
Annual mean temperature
0.2 C (0.1 to 0.2) per decade
0.3 F (0.2 to 0.4) per decade
1952 to 2012
61
Rise
Mean daily maximum
0.2 C (0.1 to 0.2) per decade
0.3 F (0.2 to 0.4) per decade
1952 to 2012
61
Rise
Mean daily minimum
0.2 C (0.1 to 0.3) per decade
0.3 F (0.2 to 0.5) per decade
1952 to 2012
61
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
1951 to 2025
Yearly extremes at Guangzhou: the record and the median year
Measure
Record
Year of the record
Median year
Years with a value
Hottest day (TXx)
39.1 C (102.4 F)
2004
36.6 C (97.9 F)
75
Coldest night (TNn)
0.0 C (32.0 F)
1957
2.6 C (36.7 F)
75
Wettest day (Rx1day)
284.9 mm (11.2 in)
1955
115.2 mm (4.5 in)
75
Wettest five days (Rx5day)
409.3 mm (16.1 in)
1989
210.1 mm (8.3 in)
75
Longest dry spell (CDD)
73 days
1983
34 days
75
Hottest day (TXx)
The hottest day of the year at Guangzhou, 1951 to 2025. The record is 39.1 C (102.4 F) in 2004, marked on the chart; the median year is 36.6 C (97.9 F).
Hottest day (TXx) at Guangzhou by year
Year
Hottest day (TXx)
1951
36.5 C (97.7 F)
1952
37.1 C (98.8 F)
1953
38.7 C (101.7 F)
1954
36.1 C (97.0 F)
1955
34.8 C (94.6 F)
1956
36.3 C (97.3 F)
1957
36.1 C (97.0 F)
1958
36.9 C (98.4 F)
1959
35.7 C (96.3 F)
1960
35.4 C (95.7 F)
1961
37.5 C (99.5 F)
1962
36.5 C (97.7 F)
1963
37.6 C (99.7 F)
1964
36.3 C (97.3 F)
1965
36.1 C (97.0 F)
1966
36.3 C (97.3 F)
1967
36.9 C (98.4 F)
1968
36.6 C (97.9 F)
1969
37.0 C (98.6 F)
1970
36.4 C (97.5 F)
1971
37.4 C (99.3 F)
1972
36.7 C (98.1 F)
1973
34.5 C (94.1 F)
1974
36.1 C (97.0 F)
1975
34.9 C (94.8 F)
1976
36.2 C (97.2 F)
1977
35.7 C (96.3 F)
1978
35.1 C (95.2 F)
1979
36.2 C (97.2 F)
1980
38.1 C (100.6 F)
1981
35.9 C (96.6 F)
1982
37.5 C (99.5 F)
1983
36.1 C (97.0 F)
1984
36.1 C (97.0 F)
1985
35.3 C (95.5 F)
1986
36.9 C (98.4 F)
1987
36.9 C (98.4 F)
1988
37.3 C (99.1 F)
1989
37.7 C (99.9 F)
1990
38.0 C (100.4 F)
1991
36.8 C (98.2 F)
1992
36.5 C (97.7 F)
1993
36.4 C (97.5 F)
1994
37.3 C (99.1 F)
1995
36.9 C (98.4 F)
1996
36.6 C (97.9 F)
1997
36.6 C (97.9 F)
1998
36.5 C (97.7 F)
1999
36.2 C (97.2 F)
2000
36.6 C (97.9 F)
2001
36.3 C (97.3 F)
2002
36.6 C (97.9 F)
2003
37.8 C (100.0 F)
2004
39.1 C (102.4 F)
2005
39.0 C (102.2 F)
2006
37.5 C (99.5 F)
2007
37.4 C (99.3 F)
2008
38.6 C (101.5 F)
2009
37.8 C (100.0 F)
2010
37.1 C (98.8 F)
2011
36.9 C (98.4 F)
2012
36.8 C (98.2 F)
2013
32.5 C (90.5 F)
2014
36.3 C (97.3 F)
2015
34.3 C (93.7 F)
2016
11.6 C (52.9 F)
2017
20.1 C (68.2 F)
2018
34.4 C (93.9 F)
2019
31.0 C (87.8 F)
2020
37.9 C (100.2 F)
2021
38.1 C (100.6 F)
2022
38.0 C (100.4 F)
2023
39.0 C (102.2 F)
2024
38.2 C (100.8 F)
2025
38.0 C (100.4 F)
Coldest night (TNn)
The coldest night of the year at Guangzhou, 1951 to 2025. The record is 0.0 C (32.0 F) in 1957, marked on the chart; the median year is 2.6 C (36.7 F).
Coldest night (TNn) at Guangzhou by year
Year
Coldest night (TNn)
1951
6.2 C (43.2 F)
1952
1.6 C (34.9 F)
1953
5.3 C (41.5 F)
1954
3.7 C (38.7 F)
1955
0.7 C (33.3 F)
1956
1.4 C (34.5 F)
1957
0.0 C (32.0 F)
1958
2.5 C (36.5 F)
1959
3.1 C (37.6 F)
1960
2.2 C (36.0 F)
1961
1.2 C (34.2 F)
1962
2.1 C (35.8 F)
1963
0.1 C (32.2 F)
1964
4.0 C (39.2 F)
1965
4.7 C (40.5 F)
1966
4.2 C (39.6 F)
1967
0.2 C (32.4 F)
1968
1.9 C (35.4 F)
1969
1.3 C (34.3 F)
1970
2.6 C (36.7 F)
1971
0.6 C (33.1 F)
1972
1.6 C (34.9 F)
1973
2.3 C (36.1 F)
1974
1.3 C (34.3 F)
1975
0.9 C (33.6 F)
1976
1.4 C (34.5 F)
1977
1.5 C (34.7 F)
1978
1.6 C (34.9 F)
1979
1.6 C (34.9 F)
1980
2.6 C (36.7 F)
1981
3.8 C (38.8 F)
1982
2.4 C (36.3 F)
1983
3.0 C (37.4 F)
1984
2.3 C (36.1 F)
1985
2.9 C (37.2 F)
1986
3.1 C (37.6 F)
1987
3.6 C (38.5 F)
1988
5.7 C (42.3 F)
1989
4.5 C (40.1 F)
1990
3.4 C (38.1 F)
1991
0.8 C (33.4 F)
1992
4.0 C (39.2 F)
1993
2.7 C (36.9 F)
1994
5.1 C (41.2 F)
1995
6.4 C (43.5 F)
1996
2.4 C (36.3 F)
1997
4.3 C (39.7 F)
1998
5.0 C (41.0 F)
1999
0.0 C (32.0 F)
2000
4.0 C (39.2 F)
2001
4.5 C (40.1 F)
2002
3.1 C (37.6 F)
2003
4.1 C (39.4 F)
2004
3.1 C (37.6 F)
2005
2.1 C (35.8 F)
2006
5.0 C (41.0 F)
2007
5.7 C (42.3 F)
2008
3.6 C (38.5 F)
2009
3.3 C (37.9 F)
2010
1.8 C (35.2 F)
2011
2.6 C (36.7 F)
2012
2.5 C (36.5 F)
2013
3.3 C (37.9 F)
2014
1.3 C (34.3 F)
2015
4.8 C (40.6 F)
2016
1.2 C (34.2 F)
2017
4.5 C (40.1 F)
2018
1.4 C (34.5 F)
2019
6.1 C (43.0 F)
2020
1.4 C (34.5 F)
2021
1.1 C (34.0 F)
2022
4.3 C (39.7 F)
2023
1.8 C (35.2 F)
2024
2.1 C (35.8 F)
2025
3.0 C (37.4 F)
Wettest day (Rx1day)
The wettest day of the year at Guangzhou, 1951 to 2025. The record is 284.9 mm (11.2 in) in 1955, marked on the chart; the median year is 115.2 mm (4.5 in).
Wettest day (Rx1day) at Guangzhou by year
Year
Wettest day (Rx1day)
1951
106.4 mm (4.2 in)
1952
130.0 mm (5.1 in)
1953
143.1 mm (5.6 in)
1954
70.7 mm (2.8 in)
1955
284.9 mm (11.2 in)
1956
73.6 mm (2.9 in)
1957
156.4 mm (6.2 in)
1958
66.6 mm (2.6 in)
1959
125.4 mm (4.9 in)
1960
198.2 mm (7.8 in)
1961
253.6 mm (10.0 in)
1962
104.1 mm (4.1 in)
1963
89.2 mm (3.5 in)
1964
245.9 mm (9.7 in)
1965
136.6 mm (5.4 in)
1966
88.8 mm (3.5 in)
1967
118.2 mm (4.7 in)
1968
76.2 mm (3.0 in)
1969
112.6 mm (4.4 in)
1970
77.6 mm (3.1 in)
1971
125.6 mm (4.9 in)
1972
111.6 mm (4.4 in)
1973
121.7 mm (4.8 in)
1974
66.5 mm (2.6 in)
1975
165.0 mm (6.5 in)
1976
115.2 mm (4.5 in)
1977
104.3 mm (4.1 in)
1978
86.1 mm (3.4 in)
1979
122.0 mm (4.8 in)
1980
95.2 mm (3.7 in)
1981
172.6 mm (6.8 in)
1982
90.9 mm (3.6 in)
1983
210.9 mm (8.3 in)
1984
72.4 mm (2.9 in)
1985
123.6 mm (4.9 in)
1986
109.5 mm (4.3 in)
1987
109.1 mm (4.3 in)
1988
128.3 mm (5.1 in)
1989
215.3 mm (8.5 in)
1990
45.8 mm (1.8 in)
1991
168.4 mm (6.6 in)
1992
144.1 mm (5.7 in)
1993
156.4 mm (6.2 in)
1994
119.8 mm (4.7 in)
1995
99.4 mm (3.9 in)
1996
78.9 mm (3.1 in)
1997
99.0 mm (3.9 in)
1998
75.9 mm (3.0 in)
1999
239.0 mm (9.4 in)
2000
111.6 mm (4.4 in)
2001
163.9 mm (6.5 in)
2002
82.6 mm (3.3 in)
2003
111.7 mm (4.4 in)
2004
90.7 mm (3.6 in)
2005
109.9 mm (4.3 in)
2006
107.4 mm (4.2 in)
2007
99.4 mm (3.9 in)
2008
138.1 mm (5.4 in)
2009
82.0 mm (3.2 in)
2010
214.7 mm (8.5 in)
2011
106.6 mm (4.2 in)
2012
93.1 mm (3.7 in)
2013
86.6 mm (3.4 in)
2014
165.1 mm (6.5 in)
2015
157.2 mm (6.2 in)
2016
188.5 mm (7.4 in)
2017
164.1 mm (6.5 in)
2018
226.6 mm (8.9 in)
2019
172.7 mm (6.8 in)
2020
218.9 mm (8.6 in)
2021
83.8 mm (3.3 in)
2022
120.4 mm (4.7 in)
2023
172.5 mm (6.8 in)
2024
109.0 mm (4.3 in)
2025
143.8 mm (5.7 in)
Wettest five days (Rx5day)
The wettest five days of the year at Guangzhou, 1951 to 2025. The record is 409.3 mm (16.1 in) in 1989, marked on the chart; the median year is 210.1 mm (8.3 in).
Wettest five days (Rx5day) at Guangzhou by year
Year
Wettest five days (Rx5day)
1951
126.0 mm (5.0 in)
1952
196.6 mm (7.7 in)
1953
162.9 mm (6.4 in)
1954
143.9 mm (5.7 in)
1955
331.8 mm (13.1 in)
1956
147.0 mm (5.8 in)
1957
335.5 mm (13.2 in)
1958
142.4 mm (5.6 in)
1959
369.0 mm (14.5 in)
1960
266.0 mm (10.5 in)
1961
298.5 mm (11.8 in)
1962
216.9 mm (8.5 in)
1963
160.8 mm (6.3 in)
1964
316.0 mm (12.4 in)
1965
285.6 mm (11.2 in)
1966
153.5 mm (6.0 in)
1967
210.3 mm (8.3 in)
1968
119.2 mm (4.7 in)
1969
167.4 mm (6.6 in)
1970
123.6 mm (4.9 in)
1971
196.9 mm (7.8 in)
1972
235.4 mm (9.3 in)
1973
192.8 mm (7.6 in)
1974
131.0 mm (5.2 in)
1975
327.6 mm (12.9 in)
1976
174.3 mm (6.9 in)
1977
160.5 mm (6.3 in)
1978
158.5 mm (6.2 in)
1979
179.4 mm (7.1 in)
1980
188.3 mm (7.4 in)
1981
302.7 mm (11.9 in)
1982
222.6 mm (8.8 in)
1983
297.9 mm (11.7 in)
1984
102.6 mm (4.0 in)
1985
137.9 mm (5.4 in)
1986
169.8 mm (6.7 in)
1987
181.5 mm (7.1 in)
1988
278.6 mm (11.0 in)
1989
409.3 mm (16.1 in)
1990
98.2 mm (3.9 in)
1991
226.4 mm (8.9 in)
1992
241.2 mm (9.5 in)
1993
250.3 mm (9.9 in)
1994
196.9 mm (7.8 in)
1995
165.0 mm (6.5 in)
1996
183.2 mm (7.2 in)
1997
211.3 mm (8.3 in)
1998
156.3 mm (6.2 in)
1999
306.4 mm (12.1 in)
2000
231.3 mm (9.1 in)
2001
348.4 mm (13.7 in)
2002
163.6 mm (6.4 in)
2003
168.1 mm (6.6 in)
2004
171.8 mm (6.8 in)
2005
182.6 mm (7.2 in)
2006
234.1 mm (9.2 in)
2007
151.2 mm (6.0 in)
2008
261.3 mm (10.3 in)
2009
147.7 mm (5.8 in)
2010
285.4 mm (11.2 in)
2011
224.7 mm (8.8 in)
2012
192.6 mm (7.6 in)
2013
255.5 mm (10.1 in)
2014
310.1 mm (12.2 in)
2015
329.2 mm (13.0 in)
2016
230.7 mm (9.1 in)
2017
242.1 mm (9.5 in)
2018
331.5 mm (13.1 in)
2019
201.9 mm (7.9 in)
2020
325.6 mm (12.8 in)
2021
210.1 mm (8.3 in)
2022
203.7 mm (8.0 in)
2023
223.7 mm (8.8 in)
2024
303.9 mm (12.0 in)
2025
280.7 mm (11.1 in)
Longest dry spell (CDD)
The longest dry spell of the year at Guangzhou, 1951 to 2025. The record is 73 days in 1983, marked on the chart; the median year is 34 days.
Longest dry spell (CDD) at Guangzhou by year
Year
Longest dry spell (CDD)
1951
19 days
1952
33 days
1953
23 days
1954
29 days
1955
37 days
1956
30 days
1957
37 days
1958
71 days
1959
41 days
1960
24 days
1961
24 days
1962
34 days
1963
37 days
1964
69 days
1965
28 days
1966
39 days
1967
27 days
1968
39 days
1969
38 days
1970
31 days
1971
38 days
1972
18 days
1973
34 days
1974
25 days
1975
28 days
1976
55 days
1977
41 days
1978
43 days
1979
56 days
1980
42 days
1981
35 days
1982
17 days
1983
73 days
1984
45 days
1985
21 days
1986
25 days
1987
42 days
1988
42 days
1989
51 days
1990
44 days
1991
38 days
1992
69 days
1993
28 days
1994
44 days
1995
30 days
1996
68 days
1997
28 days
1998
46 days
1999
39 days
2000
28 days
2001
20 days
2002
33 days
2003
31 days
2004
45 days
2005
44 days
2006
32 days
2007
35 days
2008
25 days
2009
36 days
2010
39 days
2011
43 days
2012
28 days
2013
3 days
2014
4 days
2015
3 days
2016
6 days
2017
6 days
2018
4 days
2019
23 days
2020
21 days
2021
39 days
2022
27 days
2023
38 days
2024
30 days
2025
25 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.
Rainfall Return Levels
67 years, 1951 to 2024
A day with at least 113.7 mm (4.5 in) of rain is expected about once in 2 years. A day with at least 321.3 mm (12.6 in) of rain is expected about once in 100 years.
Rainfall return levels at Guangzhou: the daily rain expected about once in a given number of years
Expected about once in
A day with at least
Note
2 years
113.7 mm (4.5 in)
5 years
157.1 mm (6.2 in)
10 years
190.2 mm (7.5 in)
25 years
237.6 mm (9.4 in)
50 years
277.4 mm (10.9 in)
100 years
321.3 mm (12.6 in)
Longer than the 67 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, 67 years of values from 1951 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: 284.9 mm (11.2 in) in 1955; 253.6 mm (10.0 in) in 1961; 245.9 mm (9.7 in) in 1964.
Station Changes
1 suspected
One change was suspected in the annual mean temperature of Guangzhou, at 1986. Each is measured against neighbouring stations.
Relative to 5 neighbouring stations, the station's annual mean temperature from 1986 ran 0.4 C (0.6 F) higher than in the years before (likely change).
Suspected changes in the annual mean temperature at Guangzhou, against neighbouring stations
Year
Shift (C)
Shift (F)
Strength
Neighbours
1986
+0.4
+0.6
likely
5
Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.
Download the Data
Data for Guangzhou standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Guangzhou 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 2026-10-12 (12 October 2026). Records are computed by this site and are not official.