Chon Buri Weather Records (TH000048459)

Record envelope, standing records and threshold days for Chon Buri (TH000048459), Thailand, with 75 years of record.

Key Facts for Chon Buri

Chon Buri (TH000048459) is a weather station in Thailand at 13.37 latitude and 100.98 longitude, 2 m (7 ft) above sea level.
The station reports from 1951 to 2025, 75 years of record.
1,464 records set at Chon Buri still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Chon Buri set a daily record high maximum temperature of 35.2 C (95.4 F) on 4 August 2025.

About the Station

Location: Thailand, 13.37 latitude, 100.98 longitude.
Elevation: 2 m (7 ft).
Period of record: 1951 to 2025, 75 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

2 days at or beyond a record

The band shows the record high and record low for each calendar day at Chon Buri. The lines show the 2026 daily maximum and minimum. 2 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Chon Buri, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	37.5 C (99.5 F)	9.9 C (49.8 F)	34.3 C (93.7 F)	17.4 C (63.3 F)
Feb	41.6 C (106.9 F)	16.0 C (60.8 F)	35.2 C (95.4 F)	21.6 C (70.9 F)
Mar	38.4 C (101.1 F)	14.0 C (57.2 F)	36.6 C (97.9 F)	22.6 C (72.7 F)
Apr	39.9 C (103.8 F)	20.4 C (68.7 F)	36.1 C (97.0 F)	23.7 C (74.7 F)
May	39.3 C (102.7 F)	21.2 C (70.2 F)	36.2 C (97.2 F)	23.1 C (73.6 F)
Jun	38.1 C (100.6 F)	21.0 C (69.8 F)	36.0 C (96.8 F)	23.2 C (73.8 F)
Jul	37.4 C (99.3 F)	20.5 C (68.9 F)	35.1 C (95.2 F)	23.6 C (74.5 F)
Aug	36.5 C (97.7 F)	20.9 C (69.6 F)	35.2 C (95.4 F)	23.6 C (74.5 F)
Sep	37.2 C (99.0 F)	20.6 C (69.1 F)	n/a	n/a
Oct	39.7 C (103.5 F)	17.9 C (64.2 F)	n/a	n/a
Nov	37.9 C (100.2 F)	14.2 C (57.6 F)	n/a	n/a
Dec	36.9 C (98.4 F)	10.7 C (51.3 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Chon Buri still stand. 1971 holds the most, with 75.

Standing records at Chon Buri by the year they were set
Year set	Standing records
1951	11
1952	22
1953	14
1954	13
1955	44
1956	26
1957	12
1958	15
1959	7
1960	18
1961	16
1962	20
1963	21
1964	23
1965	15
1966	9
1967	20
1968	16
1969	20
1970	55
1971	75
1972	10
1973	14
1974	18
1975	28
1976	26
1977	16
1978	12
1979	31
1980	16
1981	7
1982	10
1983	19
1984	5
1985	5
1986	14
1987	13
1988	16
1989	7
1990	9
1991	13
1992	13
1993	17
1994	26
1995	27
1996	12
1997	24
1998	59
1999	19
2000	10
2001	38
2002	23
2003	23
2004	40
2005	10
2006	18
2007	15
2008	5
2009	9
2010	10
2011	11
2012	13
2013	9
2014	13
2015	42
2016	47
2017	13
2018	14
2019	19
2020	19
2021	8
2022	8
2023	37
2024	49
2025	3

All-Time Record Progression

11 new records

11 all-time records were set at Chon Buri between 16 September 1981 and 3 February 2016. Each dot is a new record.

When Chon Buri set new all-time records
Date	Kind	Detail
1981-09-16	Record daily precipitation	Record daily precipitation 186.2 mm (7.3 in)
1983-04-17	Record high maximum temperature	Record high maximum temperature 38.8 C (101.8 F)
1992-05-10	Record high minimum temperature	Record high minimum temperature 29.2 C (84.6 F)
1992-05-18	Record high minimum temperature	Record high minimum temperature 29.3 C (84.7 F)
1992-12-25	Record low maximum temperature	Record low maximum temperature 21.0 C (69.8 F)
1995-04-17	Record high maximum temperature	Record high maximum temperature 39.0 C (102.2 F)
1995-04-23	Record high maximum temperature	Record high maximum temperature 39.9 C (103.8 F)
1998-05-02	Record high minimum temperature	Record high minimum temperature 29.6 C (85.3 F)
1998-05-16	Record high minimum temperature	Record high minimum temperature 30.1 C (86.2 F)
2000-04-12	Record daily precipitation	Record daily precipitation 210.6 mm (8.3 in)
2016-02-03	Record high maximum temperature	Record high maximum temperature 41.6 C (106.9 F)

Wettest Day of Each Month

Apr: 210.6 mm (8.3 in)

The wettest day on record for each calendar month at Chon Buri. The most was 210.6 mm (8.3 in) on 12 April 2000.

Record daily precipitation for each month at Chon Buri
Month	Record daily precipitation (mm)	Date
Jan	80.8 mm (3.2 in)	3 January 1978
Feb	92.1 mm (3.6 in)	25 February 1958
Mar	105.4 mm (4.1 in)	3 March 2021
Apr	210.6 mm (8.3 in)	12 April 2000
May	126.2 mm (5.0 in)	11 May 1954
Jun	163.1 mm (6.4 in)	30 June 1994
Jul	160.5 mm (6.3 in)	11 July 2004
Aug	131.0 mm (5.2 in)	27 August 1971
Sep	186.2 mm (7.3 in)	16 September 1981
Oct	145.4 mm (5.7 in)	13 October 1952
Nov	91.8 mm (3.6 in)	4 November 1975
Dec	37.7 mm (1.5 in)	1 December 1970

Period of Record Coverage

1951 to 2025

75 years of record at Chon Buri, 1951 to 2025. 26 years have data for under 90 percent of days and are left out of rankings: 1962, 1963, 1987, 1988, 1989, 2005, 2006, 2007 and others.

Days with data per year at Chon Buri
Year	Days with data	Share of year	Complete
1951	365	100%	Yes
1952	366	100%	Yes
1953	365	100%	Yes
1954	365	100%	Yes
1955	365	100%	Yes
1956	366	100%	Yes
1957	363	99%	Yes
1958	365	100%	Yes
1959	363	99%	Yes
1960	366	100%	Yes
1961	364	100%	Yes
1962	328	90%	No
1963	274	75%	No
1964	365	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	365	100%	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	331	91%	Yes
1987	324	89%	No
1988	298	81%	No
1989	325	89%	No
1990	335	92%	Yes
1991	347	95%	Yes
1992	346	95%	Yes
1993	345	95%	Yes
1994	346	95%	Yes
1995	345	95%	Yes
1996	356	97%	Yes
1997	355	97%	Yes
1998	343	94%	Yes
1999	339	93%	Yes
2000	349	95%	Yes
2001	349	96%	Yes
2002	345	95%	Yes
2003	347	95%	Yes
2004	344	94%	Yes
2005	301	82%	No
2006	328	90%	No
2007	262	72%	No
2008	275	75%	No
2009	236	65%	No
2010	279	76%	No
2011	295	81%	No
2012	276	75%	No
2013	299	82%	No
2014	284	78%	No
2015	296	81%	No
2016	287	78%	No
2017	270	74%	No
2018	175	48%	No
2019	164	45%	No
2020	194	53%	No
2021	206	56%	No
2022	260	71%	No
2023	268	73%	No
2024	251	69%	No
2025	132	36%	No

Latest Records

Latest records at Chon Buri
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 August 2025	Chon Buri, TH	daily high max	35.2 C (95.4 F)	0.5 C (0.9 F)	24 years	17 of 100 (Routine)
24 July 2025	Chon Buri, TH	daily high min	28.0 C (82.4 F)	0.5 C (0.9 F)	63 years	28 of 100 (Routine)
16 July 2025	Chon Buri, TH	daily rain	57.9 mm (2.3 in)	10.8 mm (0.4 in)	42 years	26 of 100 (Routine)
22 June 2025	Chon Buri, TH	daily rain	76.7 mm (3.0 in)	27.7 mm (1.1 in)	60 years	43 of 100 (Notable)
21 June 2025	Chon Buri, TH	daily rain	60.7 mm (2.4 in)	12.0 mm (0.5 in)	64 years	34 of 100 (Routine)
16 May 2025	Chon Buri, TH	daily rain	64.5 mm (2.5 in)	17.5 mm (0.7 in)	36 years	29 of 100 (Routine)
14 May 2025	Chon Buri, TH	daily rain	57.9 mm (2.3 in)	8.4 mm (0.33 in)	18 years	17 of 100 (Routine)
11 May 2025	Chon Buri, TH	daily low min	23.1 C (73.6 F)	0.1 C (0.2 F)	56 years	24 of 100 (Routine)
30 March 2025	Chon Buri, TH	daily rain	67.1 mm (2.6 in)	49.4 mm (1.9 in)	60 years	58 of 100 (Notable)
7 March 2025	Chon Buri, TH	daily rain	34.5 mm (1.4 in)	4.7 mm (0.19 in)	64 years	29 of 100 (Routine)
22 February 2025	Chon Buri, TH	daily rain	26.9 mm (1.1 in)	15.0 mm (0.6 in)	14 years	22 of 100 (Routine)
13 December 2024	Chon Buri, TH	daily rain (Tie)	0.3 mm (0.01 in)	tie	60 years	6 of 100 (Routine)
17 November 2024	Chon Buri, TH	daily rain	46.5 mm (1.8 in)	27.4 mm (1.1 in)	36 years	37 of 100 (Notable)
31 October 2024	Chon Buri, TH	daily high min	25.7 C (78.3 F)	0.1 C (0.2 F)	26 years	14 of 100 (Routine)
26 October 2024	Chon Buri, TH	daily high min (Tie)	26.0 C (78.8 F)	tie	5 years	2 of 100 (Routine)
25 October 2024	Chon Buri, TH	daily high min	26.6 C (79.9 F)	0.1 C (0.2 F)	5 years	8 of 100 (Routine)
12 October 2024	Chon Buri, TH	daily high max	35.2 C (95.4 F)	0.5 C (0.9 F)	44 years	22 of 100 (Routine)
11 October 2024	Chon Buri, TH	daily high max	35.7 C (96.3 F)	0.8 C (1.4 F)	27 years	19 of 100 (Routine)
7 October 2024	Chon Buri, TH	daily high max	34.8 C (94.6 F)	0.4 C (0.7 F)	52 years	24 of 100 (Routine)
12 September 2024	Chon Buri, TH	daily high max	35.0 C (95.0 F)	0.3 C (0.5 F)	5 years	10 of 100 (Routine)

Climate Trend

35 complete years, 1951 to 2004

One stripe for each of 35 complete years at Chon Buri, 1951 to 2004. Blue stripes are years cooler than the station's own mean of 28.2 C (82.8 F); red stripes are warmer. The coolest year was 1971, at 27.0 C (80.5 F), and the warmest was 2004, at 29.6 C (85.2 F). The strongest colour marks a difference of 1.4 C (2.5 F).

Annual mean temperature at Chon Buri as warming stripes, 1951 to 2004
Year	Annual mean temperature	Difference from the station mean
1951	28.1 C	-0.16 C
1952	27.9 C	-0.29 C
1953	27.9 C	-0.33 C
1954	27.8 C	-0.40 C
1955	27.2 C	-0.98 C
1956	27.2 C	-1.01 C
1957	27.9 C	-0.36 C
1958	27.9 C	-0.27 C
1959	28.2 C	-0.01 C
1960	28.2 C	+0.02 C
1961	27.7 C	-0.47 C
1964	27.7 C	-0.51 C
1965	27.8 C	-0.46 C
1966	28.2 C	-0.01 C
1967	27.7 C	-0.48 C
1968	27.9 C	-0.33 C
1969	28.2 C	+0.03 C
1970	27.6 C	-0.57 C
1971	27.0 C	-1.24 C
1972	28.4 C	+0.22 C
1973	28.4 C	+0.19 C
1974	27.9 C	-0.31 C
1975	28.0 C	-0.18 C
1976	27.7 C	-0.48 C
1977	28.4 C	+0.21 C
1978	28.5 C	+0.30 C
1979	29.1 C	+0.85 C
1980	28.8 C	+0.63 C
1986	28.4 C	+0.21 C
1990	29.2 C	+1.02 C
1992	29.1 C	+0.85 C
1995	29.3 C	+1.09 C
1996	28.9 C	+0.65 C
2003	29.3 C	+1.13 C
2004	29.6 C	+1.37 C

The annual mean temperature here has risen by 0.3 C (0.3 to 0.4) per decade over 1951 to 2004. In Fahrenheit: 0.6 F (0.5 to 0.8) per decade. The slope is a straight line fitted to 35 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Chon Buri
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.3 C (0.3 to 0.4) per decade	0.6 F (0.5 to 0.8) per decade	1951 to 2004	35	Rise
Mean daily maximum	0.4 C (0.3 to 0.5) per decade	0.7 F (0.6 to 0.9) per decade	1951 to 2004	35	Rise
Mean daily minimum	0.3 C (0.2 to 0.4) per decade	0.5 F (0.3 to 0.7) per decade	1951 to 2004	35	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 Chon Buri: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	41.6 C (106.9 F)	2016	37.3 C (99.1 F)	75
Coldest night (TNn)	9.9 C (49.8 F)	1955	16.9 C (62.4 F)	70
Wettest day (Rx1day)	210.6 mm (8.3 in)	2000	87.6 mm (3.4 in)	75
Wettest five days (Rx5day)	356.7 mm (14.0 in)	1963	161.2 mm (6.3 in)	75
Longest dry spell (CDD)	90 days	1979	32 days	75

Hottest day (TXx)

The hottest day of the year at Chon Buri, 1951 to 2025. The record is 41.6 C (106.9 F) in 2016, marked on the chart; the median year is 37.3 C (99.1 F).

Hottest day (TXx) at Chon Buri by year
Year	Hottest day (TXx)
1951	36.6 C (97.9 F)
1952	36.1 C (97.0 F)
1953	36.1 C (97.0 F)
1954	36.4 C (97.5 F)
1955	36.7 C (98.1 F)
1956	34.8 C (94.6 F)
1957	37.8 C (100.0 F)
1958	36.8 C (98.2 F)
1959	37.1 C (98.8 F)
1960	37.7 C (99.9 F)
1961	36.3 C (97.3 F)
1962	35.7 C (96.3 F)
1963	36.8 C (98.2 F)
1964	36.6 C (97.9 F)
1965	36.0 C (96.8 F)
1966	36.7 C (98.1 F)
1967	36.0 C (96.8 F)
1968	35.8 C (96.4 F)
1969	36.5 C (97.7 F)
1970	37.7 C (99.9 F)
1971	36.2 C (97.2 F)
1972	37.7 C (99.9 F)
1973	38.0 C (100.4 F)
1974	36.1 C (97.0 F)
1975	37.5 C (99.5 F)
1976	36.6 C (97.9 F)
1977	37.6 C (99.7 F)
1978	37.8 C (100.0 F)
1979	38.4 C (101.1 F)
1980	38.2 C (100.8 F)
1981	35.9 C (96.6 F)
1982	37.7 C (99.9 F)
1983	38.8 C (101.8 F)
1984	38.7 C (101.7 F)
1985	38.0 C (100.4 F)
1986	36.5 C (97.7 F)
1987	37.7 C (99.9 F)
1988	38.1 C (100.6 F)
1989	37.5 C (99.5 F)
1990	38.3 C (100.9 F)
1991	38.8 C (101.8 F)
1992	38.8 C (101.8 F)
1993	38.3 C (100.9 F)
1994	37.4 C (99.3 F)
1995	39.9 C (103.8 F)
1996	37.3 C (99.1 F)
1997	36.9 C (98.4 F)
1998	38.2 C (100.8 F)
1999	39.7 C (103.5 F)
2000	36.1 C (97.0 F)
2001	37.5 C (99.5 F)
2002	37.0 C (98.6 F)
2003	37.1 C (98.8 F)
2004	38.3 C (100.9 F)
2005	36.9 C (98.4 F)
2006	36.7 C (98.1 F)
2007	36.9 C (98.4 F)
2008	36.7 C (98.1 F)
2009	36.9 C (98.4 F)
2010	39.0 C (102.2 F)
2011	36.7 C (98.1 F)
2012	37.7 C (99.9 F)
2013	38.0 C (100.4 F)
2014	37.3 C (99.1 F)
2015	38.1 C (100.6 F)
2016	41.6 C (106.9 F)
2017	38.1 C (100.6 F)
2018	37.0 C (98.6 F)
2019	38.2 C (100.8 F)
2020	38.0 C (100.4 F)
2021	37.2 C (99.0 F)
2022	36.4 C (97.5 F)
2023	38.0 C (100.4 F)
2024	38.8 C (101.8 F)
2025	36.6 C (97.9 F)

Coldest night (TNn)

The coldest night of the year at Chon Buri, 1951 to 2025. The record is 9.9 C (49.8 F) in 1955, marked on the chart; the median year is 16.9 C (62.4 F).

Coldest night (TNn) at Chon Buri by year
Year	Coldest night (TNn)
1951	15.1 C (59.2 F)
1952	13.6 C (56.5 F)
1953	15.3 C (59.5 F)
1954	13.9 C (57.0 F)
1955	9.9 C (49.8 F)
1956	13.6 C (56.5 F)
1957	14.4 C (57.9 F)
1958	16.5 C (61.7 F)
1959	15.8 C (60.4 F)
1960	12.6 C (54.7 F)
1961	14.0 C (57.2 F)
1962	14.8 C (58.6 F)
1963	12.1 C (53.8 F)
1964	14.4 C (57.9 F)
1965	15.3 C (59.5 F)
1966	15.5 C (59.9 F)
1967	12.2 C (54.0 F)
1968	16.9 C (62.4 F)
1969	15.5 C (59.9 F)
1970	15.7 C (60.3 F)
1971	13.0 C (55.4 F)
1972	13.8 C (56.8 F)
1973	13.1 C (55.6 F)
1974	15.2 C (59.4 F)
1975	12.0 C (53.6 F)
1976	12.4 C (54.3 F)
1977	17.2 C (63.0 F)
1978	17.1 C (62.8 F)
1979	18.2 C (64.8 F)
1980	17.6 C (63.7 F)
1981	n/a
1982	n/a
1983	n/a
1984	n/a
1985	n/a
1986	13.5 C (56.3 F)
1987	15.6 C (60.1 F)
1988	17.0 C (62.6 F)
1989	18.3 C (64.9 F)
1990	16.9 C (62.4 F)
1991	19.8 C (67.6 F)
1992	17.2 C (63.0 F)
1993	16.1 C (61.0 F)
1994	19.4 C (66.9 F)
1995	10.7 C (51.3 F)
1996	17.1 C (62.8 F)
1997	18.5 C (65.3 F)
1998	19.2 C (66.6 F)
1999	13.0 C (55.4 F)
2000	17.3 C (63.1 F)
2001	17.4 C (63.3 F)
2002	18.9 C (66.0 F)
2003	17.0 C (62.6 F)
2004	18.9 C (66.0 F)
2005	18.0 C (64.4 F)
2006	17.5 C (63.5 F)
2007	17.5 C (63.5 F)
2008	19.0 C (66.2 F)
2009	17.3 C (63.1 F)
2010	19.0 C (66.2 F)
2011	17.7 C (63.9 F)
2012	20.1 C (68.2 F)
2013	16.4 C (61.5 F)
2014	15.5 C (59.9 F)
2015	18.6 C (65.5 F)
2016	16.0 C (60.8 F)
2017	15.9 C (60.6 F)
2018	18.5 C (65.3 F)
2019	17.3 C (63.1 F)
2020	18.6 C (65.5 F)
2021	19.0 C (66.2 F)
2022	17.9 C (64.2 F)
2023	18.5 C (65.3 F)
2024	18.8 C (65.8 F)
2025	17.4 C (63.3 F)

Wettest day (Rx1day)

The wettest day of the year at Chon Buri, 1951 to 2025. The record is 210.6 mm (8.3 in) in 2000, marked on the chart; the median year is 87.6 mm (3.4 in).

Wettest day (Rx1day) at Chon Buri by year
Year	Wettest day (Rx1day)
1951	110.6 mm (4.4 in)
1952	145.4 mm (5.7 in)
1953	81.5 mm (3.2 in)
1954	126.2 mm (5.0 in)
1955	82.6 mm (3.3 in)
1956	77.4 mm (3.0 in)
1957	100.0 mm (3.9 in)
1958	92.1 mm (3.6 in)
1959	73.2 mm (2.9 in)
1960	95.6 mm (3.8 in)
1961	64.4 mm (2.5 in)
1962	64.0 mm (2.5 in)
1963	124.2 mm (4.9 in)
1964	87.2 mm (3.4 in)
1965	75.2 mm (3.0 in)
1966	110.5 mm (4.4 in)
1967	40.3 mm (1.6 in)
1968	70.4 mm (2.8 in)
1969	107.6 mm (4.2 in)
1970	49.4 mm (1.9 in)
1971	131.0 mm (5.2 in)
1972	74.2 mm (2.9 in)
1973	99.6 mm (3.9 in)
1974	121.5 mm (4.8 in)
1975	91.8 mm (3.6 in)
1976	95.8 mm (3.8 in)
1977	90.9 mm (3.6 in)
1978	90.0 mm (3.5 in)
1979	69.3 mm (2.7 in)
1980	55.1 mm (2.2 in)
1981	186.2 mm (7.3 in)
1982	115.9 mm (4.6 in)
1983	70.8 mm (2.8 in)
1984	132.7 mm (5.2 in)
1985	80.8 mm (3.2 in)
1986	65.0 mm (2.6 in)
1987	87.9 mm (3.5 in)
1988	75.9 mm (3.0 in)
1989	81.0 mm (3.2 in)
1990	97.0 mm (3.8 in)
1991	71.9 mm (2.8 in)
1992	62.0 mm (2.4 in)
1993	69.1 mm (2.7 in)
1994	163.1 mm (6.4 in)
1995	125.0 mm (4.9 in)
1996	85.1 mm (3.4 in)
1997	87.9 mm (3.5 in)
1998	57.9 mm (2.3 in)
1999	73.9 mm (2.9 in)
2000	210.6 mm (8.3 in)
2001	42.4 mm (1.7 in)
2002	84.1 mm (3.3 in)
2003	108.2 mm (4.3 in)
2004	160.5 mm (6.3 in)
2005	109.2 mm (4.3 in)
2006	65.8 mm (2.6 in)
2007	78.5 mm (3.1 in)
2008	106.4 mm (4.2 in)
2009	117.6 mm (4.6 in)
2010	56.1 mm (2.2 in)
2011	143.8 mm (5.7 in)
2012	87.6 mm (3.4 in)
2013	106.7 mm (4.2 in)
2014	99.6 mm (3.9 in)
2015	68.1 mm (2.7 in)
2016	82.0 mm (3.2 in)
2017	126.0 mm (5.0 in)
2018	68.1 mm (2.7 in)
2019	72.9 mm (2.9 in)
2020	85.9 mm (3.4 in)
2021	105.4 mm (4.1 in)
2022	54.9 mm (2.2 in)
2023	114.0 mm (4.5 in)
2024	103.6 mm (4.1 in)
2025	76.7 mm (3.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Chon Buri, 1951 to 2025. The record is 356.7 mm (14.0 in) in 1963, marked on the chart; the median year is 161.2 mm (6.3 in).

Wettest five days (Rx5day) at Chon Buri by year
Year	Wettest five days (Rx5day)
1951	274.0 mm (10.8 in)
1952	254.5 mm (10.0 in)
1953	162.5 mm (6.4 in)
1954	148.2 mm (5.8 in)
1955	207.0 mm (8.1 in)
1956	133.8 mm (5.3 in)
1957	277.5 mm (10.9 in)
1958	197.0 mm (7.8 in)
1959	136.3 mm (5.4 in)
1960	256.7 mm (10.1 in)
1961	118.4 mm (4.7 in)
1962	104.4 mm (4.1 in)
1963	356.7 mm (14.0 in)
1964	161.2 mm (6.3 in)
1965	118.0 mm (4.6 in)
1966	238.0 mm (9.4 in)
1967	98.2 mm (3.9 in)
1968	113.0 mm (4.4 in)
1969	145.2 mm (5.7 in)
1970	97.3 mm (3.8 in)
1971	205.0 mm (8.1 in)
1972	184.6 mm (7.3 in)
1973	161.1 mm (6.3 in)
1974	273.2 mm (10.8 in)
1975	173.9 mm (6.8 in)
1976	148.0 mm (5.8 in)
1977	90.9 mm (3.6 in)
1978	253.1 mm (10.0 in)
1979	130.2 mm (5.1 in)
1980	138.5 mm (5.5 in)
1981	282.9 mm (11.1 in)
1982	229.0 mm (9.0 in)
1983	169.7 mm (6.7 in)
1984	266.1 mm (10.5 in)
1985	127.9 mm (5.0 in)
1986	140.1 mm (5.5 in)
1987	196.1 mm (7.7 in)
1988	148.6 mm (5.9 in)
1989	114.0 mm (4.5 in)
1990	214.9 mm (8.5 in)
1991	164.9 mm (6.5 in)
1992	132.3 mm (5.2 in)
1993	86.1 mm (3.4 in)
1994	283.2 mm (11.1 in)
1995	184.0 mm (7.2 in)
1996	187.9 mm (7.4 in)
1997	168.1 mm (6.6 in)
1998	115.8 mm (4.6 in)
1999	191.7 mm (7.5 in)
2000	264.4 mm (10.4 in)
2001	70.0 mm (2.8 in)
2002	126.7 mm (5.0 in)
2003	141.0 mm (5.6 in)
2004	200.9 mm (7.9 in)
2005	159.0 mm (6.3 in)
2006	171.2 mm (6.7 in)
2007	146.3 mm (5.8 in)
2008	148.1 mm (5.8 in)
2009	268.7 mm (10.6 in)
2010	109.3 mm (4.3 in)
2011	277.8 mm (10.9 in)
2012	105.7 mm (4.2 in)
2013	213.6 mm (8.4 in)
2014	142.3 mm (5.6 in)
2015	175.8 mm (6.9 in)
2016	140.2 mm (5.5 in)
2017	215.6 mm (8.5 in)
2018	143.9 mm (5.7 in)
2019	174.6 mm (6.9 in)
2020	131.0 mm (5.2 in)
2021	120.1 mm (4.7 in)
2022	129.5 mm (5.1 in)
2023	132.9 mm (5.2 in)
2024	185.7 mm (7.3 in)
2025	181.9 mm (7.2 in)

Longest dry spell (CDD)

The longest dry spell of the year at Chon Buri, 1951 to 2025. The record is 90 days in 1979, marked on the chart; the median year is 32 days.

Longest dry spell (CDD) at Chon Buri by year
Year	Longest dry spell (CDD)
1951	30 days
1952	46 days
1953	25 days
1954	38 days
1955	45 days
1956	46 days
1957	44 days
1958	44 days
1959	39 days
1960	32 days
1961	38 days
1962	59 days
1963	65 days
1964	33 days
1965	56 days
1966	35 days
1967	32 days
1968	46 days
1969	58 days
1970	41 days
1971	56 days
1972	40 days
1973	65 days
1974	45 days
1975	49 days
1976	50 days
1977	34 days
1978	50 days
1979	90 days
1980	74 days
1981	36 days
1982	46 days
1983	63 days
1984	48 days
1985	38 days
1986	17 days
1987	24 days
1988	18 days
1989	50 days
1990	43 days
1991	29 days
1992	36 days
1993	24 days
1994	26 days
1995	11 days
1996	24 days
1997	42 days
1998	28 days
1999	19 days
2000	13 days
2001	4 days
2002	14 days
2003	31 days
2004	45 days
2005	54 days
2006	4 days
2007	4 days
2008	4 days
2009	4 days
2010	3 days
2011	5 days
2012	3 days
2013	2 days
2014	4 days
2015	4 days
2016	2 days
2017	3 days
2018	4 days
2019	2 days
2020	4 days
2021	3 days
2022	3 days
2023	4 days
2024	3 days
2025	3 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

46 years, 1951 to 2004

A day with at least 87.0 mm (3.4 in) of rain is expected about once in 2 years. A day with at least 187.9 mm (7.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Chon Buri: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	87.0 mm (3.4 in)
5 years	113.1 mm (4.5 in)
10 years	130.8 mm (5.1 in)
25 years	153.5 mm (6.0 in)
50 years	170.6 mm (6.7 in)	Longer than the 46 years of record
100 years	187.9 mm (7.4 in)	Longer than the 46 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, 46 years of values from 1951 to 2004.

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: 186.2 mm (7.3 in) in 1981; 160.5 mm (6.3 in) in 2004; 145.4 mm (5.7 in) in 1952.

Download the Data

Data for Chon Buri standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Chon Buri 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 2026-10-13 (13 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).