Wenzhou Weather Records (CHM00058659)

Record envelope, standing records and threshold days for Wenzhou (CHM00058659), China, with 51 years of record.

Key Facts for Wenzhou

Wenzhou (CHM00058659) is a weather station in China at 28.02 latitude and 120.67 longitude, 7 m (23 ft) above sea level.
The station reports from 1951 to 2001, 51 years of record.
1,464 records set at Wenzhou still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Wenzhou set a monthly record daily precipitation of 156.0 mm (6.1 in) on 20 June 2001.

About the Station

Location: China, 28.02 latitude, 120.67 longitude.
Elevation: 7 m (23 ft).
Period of record: 1951 to 2001, 51 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Wenzhou. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Wenzhou, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	25.6 C (78.1 F)	-4.5 C (23.9 F)	n/a	n/a
Feb	26.6 C (79.9 F)	-3.9 C (25.0 F)	n/a	n/a
Mar	29.5 C (85.1 F)	-1.7 C (28.9 F)	n/a	n/a
Apr	31.3 C (88.3 F)	2.4 C (36.3 F)	n/a	n/a
May	35.7 C (96.3 F)	9.0 C (48.2 F)	n/a	n/a
Jun	36.8 C (98.2 F)	14.9 C (58.8 F)	n/a	n/a
Jul	39.6 C (103.3 F)	17.9 C (64.2 F)	n/a	n/a
Aug	38.1 C (100.6 F)	19.1 C (66.4 F)	n/a	n/a
Sep	38.0 C (100.4 F)	13.7 C (56.7 F)	n/a	n/a
Oct	35.0 C (95.0 F)	5.7 C (42.3 F)	n/a	n/a
Nov	29.4 C (84.9 F)	0.2 C (32.4 F)	n/a	n/a
Dec	25.9 C (78.6 F)	-3.5 C (25.7 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Wenzhou still stand. 1951 holds the most, with 52.

Standing records at Wenzhou by the year they were set
Year set	Standing records
1951	52
1952	32
1953	27
1954	20
1955	23
1956	26
1957	27
1958	22
1959	18
1960	35
1961	25
1962	23
1963	35
1964	24
1965	31
1966	42
1967	19
1968	39
1969	28
1970	27
1971	21
1972	32
1973	19
1974	17
1975	24
1976	24
1977	40
1978	19
1979	28
1980	36
1981	36
1982	21
1983	28
1984	29
1985	21
1986	20
1987	49
1988	35
1989	34
1990	31
1991	35
1992	31
1993	32
1994	39
1995	27
1996	35
1997	35
1998	33
1999	24
2000	25
2001	9

All-Time Record Progression

4 new records

4 all-time records were set at Wenzhou between 1 September 1981 and 15 July 1998. Each dot is a new record.

When Wenzhou set new all-time records
Date	Kind	Detail
1981-09-01	Record high minimum temperature	Record high minimum temperature 28.8 C (83.8 F)
1985-08-24	Record daily precipitation	Record daily precipitation 252.5 mm (9.9 in)
1987-09-11	Record daily precipitation	Record daily precipitation 256.1 mm (10.1 in)
1998-07-15	Record high maximum temperature	Record high maximum temperature 39.6 C (103.3 F)

Wettest Day of Each Month

Sep: 256.1 mm (10.1 in)

The wettest day on record for each calendar month at Wenzhou. The most was 256.1 mm (10.1 in) on 11 September 1987.

Record daily precipitation for each month at Wenzhou
Month	Record daily precipitation (mm)	Date
Jan	36.4 mm (1.4 in)	8 January 1983
Feb	42.0 mm (1.7 in)	20 February 1959
Mar	87.5 mm (3.4 in)	18 March 1996
Apr	81.8 mm (3.2 in)	28 April 1980
May	98.7 mm (3.9 in)	20 May 1961
Jun	156.0 mm (6.1 in)	20 June 2001
Jul	168.6 mm (6.6 in)	17 July 1958
Aug	252.5 mm (9.9 in)	24 August 1985
Sep	256.1 mm (10.1 in)	11 September 1987
Oct	152.2 mm (6.0 in)	4 October 1962
Nov	131.4 mm (5.2 in)	28 November 1982
Dec	55.3 mm (2.2 in)	2 December 1953

Period of Record Coverage

1951 to 2001

51 years of record at Wenzhou, 1951 to 2001. 1 years have data for under 90 percent of days and are left out of rankings: 2001.

Days with data per year at Wenzhou
Year	Days with data	Share of year	Complete
1951	365	100%	Yes
1952	366	100%	Yes
1953	365	100%	Yes
1954	334	92%	Yes
1955	365	100%	Yes
1956	366	100%	Yes
1957	365	100%	Yes
1958	365	100%	Yes
1959	365	100%	Yes
1960	366	100%	Yes
1961	363	99%	Yes
1962	365	100%	Yes
1963	365	100%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	362	99%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	365	100%	Yes
1984	366	100%	Yes
1985	365	100%	Yes
1986	365	100%	Yes
1987	365	100%	Yes
1988	366	100%	Yes
1989	365	100%	Yes
1990	364	100%	Yes
1991	365	100%	Yes
1992	365	100%	Yes
1993	365	100%	Yes
1994	365	100%	Yes
1995	365	100%	Yes
1996	366	100%	Yes
1997	365	100%	Yes
1998	346	95%	Yes
1999	349	96%	Yes
2000	358	98%	Yes
2001	174	48%	No

Latest Records

Latest records at Wenzhou
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 June 2001	Wenzhou, CN	monthly rain	156.0 mm (6.1 in)	31.5 mm (1.2 in)	10 years	33 of 100 (Routine)
19 June 2001	Wenzhou, CN	daily high min	25.5 C (77.9 F)	0.3 C (0.5 F)	20 years	12 of 100 (Routine)
6 June 2001	Wenzhou, CN	daily high max	32.2 C (90.0 F)	0.5 C (0.9 F)	44 years	19 of 100 (Routine)
3 June 2001	Wenzhou, CN	daily low max (Tie)	20.2 C (68.4 F)	tie	20 years	2 of 100 (Routine)
29 April 2001	Wenzhou, CN	daily high max	28.5 C (83.3 F)	0.2 C (0.4 F)	12 years	8 of 100 (Routine)
22 March 2001	Wenzhou, CN	daily high max	24.8 C (76.6 F)	0.1 C (0.2 F)	42 years	17 of 100 (Routine)
21 March 2001	Wenzhou, CN	daily high max	26.8 C (80.2 F)	2.9 C (5.2 F)	38 years	22 of 100 (Routine)
23 February 2001	Wenzhou, CN	monthly high max	26.6 C (79.9 F)	0.4 C (0.7 F)	22 years	21 of 100 (Routine)
21 February 2001	Wenzhou, CN	daily high max	25.1 C (77.2 F)	1.1 C (2.0 F)	30 years	16 of 100 (Routine)
18 February 2001	Wenzhou, CN	daily high max	21.4 C (70.5 F)	3.1 C (5.6 F)	39 years	22 of 100 (Routine)
24 January 2001	Wenzhou, CN	daily rain	26.9 mm (1.1 in)	15.8 mm (0.6 in)	4 years	33 of 100 (Routine)
7 January 2001	Wenzhou, CN	daily high max	24.5 C (76.1 F)	4.9 C (8.8 F)	22 years	22 of 100 (Routine)
20 December 2000	Wenzhou, CN	daily rain	11.2 mm (0.4 in)	1.6 mm (0.06 in)	48 years	20 of 100 (Routine)
19 December 2000	Wenzhou, CN	daily rain	24.6 mm (1.0 in)	16.0 mm (0.6 in)	16 years	20 of 100 (Routine)
18 December 2000	Wenzhou, CN	daily high max (Tie)	22.3 C (72.1 F)	tie	42 years	4 of 100 (Routine)
10 December 2000	Wenzhou, CN	daily high max	22.4 C (72.3 F)	0.1 C (0.2 F)	10 years	8 of 100 (Routine)
12 November 2000	Wenzhou, CN	daily low max	12.7 C (54.9 F)	3.1 C (5.6 F)	37 years	24 of 100 (Routine)
7 November 2000	Wenzhou, CN	daily rain	27.2 mm (1.1 in)	5.6 mm (0.22 in)	10 years	12 of 100 (Routine)
1 November 2000	Wenzhou, CN	daily low max	16.8 C (62.2 F)	1.3 C (2.3 F)	38 years	19 of 100 (Routine)
31 October 2000	Wenzhou, CN	daily rain	28.2 mm (1.1 in)	20.2 mm (0.8 in)	41 years	29 of 100 (Routine)

Climate Trend

45 complete years, 1951 to 1997

One stripe for each of 45 complete years at Wenzhou, 1951 to 1997. Blue stripes are years cooler than the station's own mean of 18.5 C (65.2 F); red stripes are warmer. The coolest year was 1976, at 17.7 C (63.8 F), and the warmest was 1994, at 19.6 C (67.2 F). The strongest colour marks a difference of 1.1 C (2.0 F).

Annual mean temperature at Wenzhou as warming stripes, 1951 to 1997
Year	Annual mean temperature	Difference from the station mean
1951	18.6 C	+0.11 C
1952	18.4 C	-0.06 C
1953	18.4 C	-0.11 C
1955	18.6 C	+0.16 C
1956	18.2 C	-0.26 C
1957	18.4 C	-0.12 C
1958	18.7 C	+0.20 C
1959	19.1 C	+0.59 C
1960	19.0 C	+0.52 C
1961	18.8 C	+0.28 C
1962	17.8 C	-0.69 C
1963	18.7 C	+0.23 C
1964	18.6 C	+0.08 C
1965	18.0 C	-0.44 C
1966	18.7 C	+0.25 C
1967	18.2 C	-0.30 C
1968	18.2 C	-0.23 C
1969	17.8 C	-0.63 C
1970	18.1 C	-0.39 C
1971	18.3 C	-0.13 C
1972	18.2 C	-0.26 C
1973	18.3 C	-0.17 C
1974	18.1 C	-0.34 C
1975	18.4 C	-0.06 C
1976	17.7 C	-0.78 C
1977	18.6 C	+0.15 C
1978	18.6 C	+0.08 C
1980	18.2 C	-0.31 C
1981	18.2 C	-0.27 C
1982	18.4 C	-0.12 C
1983	18.6 C	+0.10 C
1984	18.0 C	-0.46 C
1985	18.5 C	+0.02 C
1986	18.4 C	-0.08 C
1987	18.7 C	+0.27 C
1988	18.6 C	+0.12 C
1989	18.6 C	+0.13 C
1990	18.7 C	+0.20 C
1991	19.0 C	+0.49 C
1992	18.4 C	-0.04 C
1993	18.7 C	+0.19 C
1994	19.6 C	+1.08 C
1995	18.6 C	+0.09 C
1996	18.7 C	+0.25 C
1997	19.2 C	+0.74 C

The fitted trend in annual mean temperature here over 1951 to 1997 is 0.07 C (-0.01 to 0.15) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.12 F (-0.02 to 0.26) per decade. The slope is a straight line fitted to 45 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Wenzhou
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.07 C (-0.01 to 0.15) per decade	0.12 F (-0.02 to 0.26) per decade	1951 to 1997	45	Not clearly different from zero
Mean daily maximum	0.09 C (-0.01 to 0.19) per decade	0.16 F (-0.01 to 0.34) per decade	1951 to 1997	45	Not clearly different from zero
Mean daily minimum	0.04 C (-0.04 to 0.13) per decade	0.1 F (-0.1 to 0.2) per decade	1951 to 1997	45	Not clearly different from zero

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 2001

Yearly extremes at Wenzhou: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	39.6 C (103.3 F)	1998	36.3 C (97.3 F)	51
Coldest night (TNn)	-4.5 C (23.9 F)	1967	-2.2 C (28.0 F)	51
Wettest day (Rx1day)	256.1 mm (10.1 in)	1987	113.7 mm (4.5 in)	51
Wettest five days (Rx5day)	521.4 mm (20.5 in)	1987	208.9 mm (8.2 in)	51
Longest dry spell (CDD)	50 days	1973	23 days	51

Hottest day (TXx)

The hottest day of the year at Wenzhou, 1951 to 2001. The record is 39.6 C (103.3 F) in 1998, marked on the chart; the median year is 36.3 C (97.3 F).

Hottest day (TXx) at Wenzhou by year
Year	Hottest day (TXx)
1951	38.0 C (100.4 F)
1952	39.3 C (102.7 F)
1953	36.3 C (97.3 F)
1954	36.3 C (97.3 F)
1955	34.2 C (93.6 F)
1956	35.6 C (96.1 F)
1957	36.3 C (97.3 F)
1958	36.0 C (96.8 F)
1959	37.8 C (100.0 F)
1960	35.8 C (96.4 F)
1961	37.2 C (99.0 F)
1962	36.1 C (97.0 F)
1963	36.5 C (97.7 F)
1964	36.2 C (97.2 F)
1965	35.9 C (96.6 F)
1966	38.1 C (100.6 F)
1967	38.1 C (100.6 F)
1968	36.7 C (98.1 F)
1969	35.4 C (95.7 F)
1970	34.4 C (93.9 F)
1971	36.6 C (97.9 F)
1972	35.8 C (96.4 F)
1973	34.6 C (94.3 F)
1974	34.8 C (94.6 F)
1975	35.1 C (95.2 F)
1976	34.9 C (94.8 F)
1977	37.3 C (99.1 F)
1978	36.8 C (98.2 F)
1979	35.5 C (95.9 F)
1980	37.0 C (98.6 F)
1981	34.8 C (94.6 F)
1982	35.3 C (95.5 F)
1983	34.4 C (93.9 F)
1984	38.1 C (100.6 F)
1985	36.0 C (96.8 F)
1986	35.5 C (95.9 F)
1987	37.2 C (99.0 F)
1988	38.6 C (101.5 F)
1989	36.8 C (98.2 F)
1990	37.4 C (99.3 F)
1991	37.8 C (100.0 F)
1992	38.4 C (101.1 F)
1993	37.5 C (99.5 F)
1994	36.8 C (98.2 F)
1995	38.0 C (100.4 F)
1996	36.5 C (97.7 F)
1997	36.3 C (97.3 F)
1998	39.6 C (103.3 F)
1999	35.3 C (95.5 F)
2000	36.5 C (97.7 F)
2001	33.6 C (92.5 F)

Coldest night (TNn)

The coldest night of the year at Wenzhou, 1951 to 2001. The record is -4.5 C (23.9 F) in 1967, marked on the chart; the median year is -2.2 C (28.0 F).

Coldest night (TNn) at Wenzhou by year
Year	Coldest night (TNn)
1951	-3.4 C (25.9 F)
1952	-3.0 C (26.6 F)
1953	-0.6 C (30.9 F)
1954	-0.2 C (31.6 F)
1955	-2.9 C (26.8 F)
1956	-1.7 C (28.9 F)
1957	-3.9 C (25.0 F)
1958	-1.9 C (28.6 F)
1959	-2.4 C (27.7 F)
1960	-1.8 C (28.8 F)
1961	-3.3 C (26.1 F)
1962	-2.2 C (28.0 F)
1963	-3.6 C (25.5 F)
1964	-0.3 C (31.5 F)
1965	-2.5 C (27.5 F)
1966	-1.5 C (29.3 F)
1967	-4.5 C (23.9 F)
1968	-2.5 C (27.5 F)
1969	-3.7 C (25.3 F)
1970	-3.0 C (26.6 F)
1971	-2.1 C (28.2 F)
1972	-0.8 C (30.6 F)
1973	-3.5 C (25.7 F)
1974	-1.9 C (28.6 F)
1975	-1.3 C (29.7 F)
1976	-2.5 C (27.5 F)
1977	-2.9 C (26.8 F)
1978	-1.2 C (29.8 F)
1979	-1.7 C (28.9 F)
1980	-3.3 C (26.1 F)
1981	-2.2 C (28.0 F)
1982	-1.1 C (30.0 F)
1983	-2.3 C (27.9 F)
1984	-3.5 C (25.7 F)
1985	-1.9 C (28.6 F)
1986	-3.3 C (26.1 F)
1987	-1.7 C (28.9 F)
1988	-0.5 C (31.1 F)
1989	-1.4 C (29.5 F)
1990	-2.3 C (27.9 F)
1991	-3.4 C (25.9 F)
1992	-2.1 C (28.2 F)
1993	-3.9 C (25.0 F)
1994	-2.4 C (27.7 F)
1995	-0.2 C (31.6 F)
1996	-0.6 C (30.9 F)
1997	0.3 C (32.5 F)
1998	-1.1 C (30.0 F)
1999	-2.3 C (27.9 F)
2000	-2.5 C (27.5 F)
2001	0.8 C (33.4 F)

Wettest day (Rx1day)

The wettest day of the year at Wenzhou, 1951 to 2001. The record is 256.1 mm (10.1 in) in 1987, marked on the chart; the median year is 113.7 mm (4.5 in).

Wettest day (Rx1day) at Wenzhou by year
Year	Wettest day (Rx1day)
1951	112.9 mm (4.4 in)
1952	142.8 mm (5.6 in)
1953	91.5 mm (3.6 in)
1954	98.0 mm (3.9 in)
1955	104.7 mm (4.1 in)
1956	157.5 mm (6.2 in)
1957	67.8 mm (2.7 in)
1958	168.6 mm (6.6 in)
1959	149.9 mm (5.9 in)
1960	247.7 mm (9.8 in)
1961	98.7 mm (3.9 in)
1962	152.2 mm (6.0 in)
1963	81.3 mm (3.2 in)
1964	124.9 mm (4.9 in)
1965	117.3 mm (4.6 in)
1966	120.2 mm (4.7 in)
1967	64.9 mm (2.6 in)
1968	65.8 mm (2.6 in)
1969	97.4 mm (3.8 in)
1970	123.8 mm (4.9 in)
1971	176.3 mm (6.9 in)
1972	168.5 mm (6.6 in)
1973	211.4 mm (8.3 in)
1974	113.7 mm (4.5 in)
1975	113.3 mm (4.5 in)
1976	113.4 mm (4.5 in)
1977	124.2 mm (4.9 in)
1978	81.7 mm (3.2 in)
1979	91.5 mm (3.6 in)
1980	81.8 mm (3.2 in)
1981	161.2 mm (6.3 in)
1982	131.4 mm (5.2 in)
1983	133.8 mm (5.3 in)
1984	75.3 mm (3.0 in)
1985	252.5 mm (9.9 in)
1986	49.0 mm (1.9 in)
1987	256.1 mm (10.1 in)
1988	100.4 mm (4.0 in)
1989	165.7 mm (6.5 in)
1990	112.7 mm (4.4 in)
1991	124.5 mm (4.9 in)
1992	137.3 mm (5.4 in)
1993	155.5 mm (6.1 in)
1994	112.8 mm (4.4 in)
1995	81.2 mm (3.2 in)
1996	87.5 mm (3.4 in)
1997	84.2 mm (3.3 in)
1998	101.1 mm (4.0 in)
1999	38.6 mm (1.5 in)
2000	116.1 mm (4.6 in)
2001	156.0 mm (6.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Wenzhou, 1951 to 2001. The record is 521.4 mm (20.5 in) in 1987, marked on the chart; the median year is 208.9 mm (8.2 in).

Wettest five days (Rx5day) at Wenzhou by year
Year	Wettest five days (Rx5day)
1951	225.5 mm (8.9 in)
1952	344.6 mm (13.6 in)
1953	131.6 mm (5.2 in)
1954	154.3 mm (6.1 in)
1955	259.3 mm (10.2 in)
1956	267.3 mm (10.5 in)
1957	181.3 mm (7.1 in)
1958	244.2 mm (9.6 in)
1959	230.4 mm (9.1 in)
1960	436.5 mm (17.2 in)
1961	196.3 mm (7.7 in)
1962	261.3 mm (10.3 in)
1963	208.9 mm (8.2 in)
1964	260.9 mm (10.3 in)
1965	183.0 mm (7.2 in)
1966	150.2 mm (5.9 in)
1967	110.3 mm (4.3 in)
1968	126.5 mm (5.0 in)
1969	147.5 mm (5.8 in)
1970	197.9 mm (7.8 in)
1971	276.5 mm (10.9 in)
1972	252.3 mm (9.9 in)
1973	242.1 mm (9.5 in)
1974	202.9 mm (8.0 in)
1975	257.6 mm (10.1 in)
1976	172.1 mm (6.8 in)
1977	199.3 mm (7.8 in)
1978	216.1 mm (8.5 in)
1979	133.3 mm (5.2 in)
1980	168.0 mm (6.6 in)
1981	305.7 mm (12.0 in)
1982	257.3 mm (10.1 in)
1983	245.4 mm (9.7 in)
1984	159.7 mm (6.3 in)
1985	320.2 mm (12.6 in)
1986	101.5 mm (4.0 in)
1987	521.4 mm (20.5 in)
1988	173.0 mm (6.8 in)
1989	222.9 mm (8.8 in)
1990	323.9 mm (12.8 in)
1991	174.3 mm (6.9 in)
1992	244.5 mm (9.6 in)
1993	192.9 mm (7.6 in)
1994	256.8 mm (10.1 in)
1995	117.5 mm (4.6 in)
1996	208.2 mm (8.2 in)
1997	165.8 mm (6.5 in)
1998	210.4 mm (8.3 in)
1999	107.6 mm (4.2 in)
2000	198.2 mm (7.8 in)
2001	242.7 mm (9.6 in)

Longest dry spell (CDD)

The longest dry spell of the year at Wenzhou, 1951 to 2001. The record is 50 days in 1973, marked on the chart; the median year is 23 days.

Longest dry spell (CDD) at Wenzhou by year
Year	Longest dry spell (CDD)
1951	21 days
1952	27 days
1953	19 days
1954	27 days
1955	47 days
1956	31 days
1957	15 days
1958	27 days
1959	37 days
1960	37 days
1961	17 days
1962	25 days
1963	37 days
1964	27 days
1965	16 days
1966	31 days
1967	18 days
1968	30 days
1969	19 days
1970	17 days
1971	49 days
1972	25 days
1973	50 days
1974	22 days
1975	17 days
1976	25 days
1977	24 days
1978	23 days
1979	41 days
1980	20 days
1981	20 days
1982	16 days
1983	36 days
1984	15 days
1985	20 days
1986	28 days
1987	28 days
1988	42 days
1989	26 days
1990	26 days
1991	18 days
1992	31 days
1993	22 days
1994	23 days
1995	20 days
1996	15 days
1997	21 days
1998	19 days
1999	16 days
2000	8 days
2001	4 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

48 years, 1951 to 1998

A day with at least 115.1 mm (4.5 in) of rain is expected about once in 2 years. A day with at least 288.8 mm (11.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Wenzhou: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	115.1 mm (4.5 in)
5 years	156.8 mm (6.2 in)
10 years	186.2 mm (7.3 in)
25 years	225.6 mm (8.9 in)
50 years	256.6 mm (10.1 in)	Longer than the 48 years of record
100 years	288.8 mm (11.4 in)	Longer than the 48 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, 48 years of values from 1951 to 1998.

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: 256.1 mm (10.1 in) in 1987; 252.5 mm (9.9 in) in 1985; 247.7 mm (9.8 in) in 1960.

Download the Data

Data for Wenzhou standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Wenzhou 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).