Chichi Jima Bonin Is Weather Records (JAW00042402)

Record envelope, standing records and threshold days for Chichi Jima Bonin Is (JAW00042402), Japan, with 61 years of record.

Key Facts for Chichi Jima Bonin Is

Chichi Jima Bonin Is (JAW00042402) is a weather station in Japan at 27.08 latitude and 142.20 longitude, 8 m (27 ft) above sea level.
The station reports from 1966 to 2026, 61 years of record.
1,464 records set at Chichi Jima Bonin Is still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Chichi Jima Bonin Is set a daily record low maximum temperature of 15.4 C (59.7 F) on 9 February 2026.

About the Station

Location: Japan, 27.08 latitude, 142.20 longitude.
Elevation: 8 m (27 ft).
Period of record: 1966 to 2026, 61 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 Chichi Jima Bonin Is. 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 Chichi Jima Bonin Is, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	26.1 C (79.0 F)	6.0 C (42.8 F)	22.8 C (73.0 F)	12.0 C (53.6 F)
Feb	27.0 C (80.6 F)	4.0 C (39.2 F)	21.8 C (71.2 F)	13.1 C (55.6 F)
Mar	26.7 C (80.1 F)	9.0 C (48.2 F)	n/a	n/a
Apr	28.2 C (82.8 F)	11.0 C (51.8 F)	n/a	n/a
May	30.3 C (86.5 F)	14.6 C (58.3 F)	n/a	n/a
Jun	33.0 C (91.4 F)	17.7 C (63.9 F)	n/a	n/a
Jul	34.1 C (93.4 F)	20.8 C (69.4 F)	n/a	n/a
Aug	33.7 C (92.7 F)	22.4 C (72.3 F)	n/a	n/a
Sep	33.0 C (91.4 F)	20.0 C (68.0 F)	n/a	n/a
Oct	32.3 C (90.1 F)	17.0 C (62.6 F)	n/a	n/a
Nov	30.2 C (86.4 F)	14.0 C (57.2 F)	n/a	n/a
Dec	29.2 C (84.6 F)	10.0 C (50.0 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Chichi Jima Bonin Is still stand. 2025 holds the most, with 76.

Standing records at Chichi Jima Bonin Is by the year they were set
Year set	Standing records
1966	17
1967	38
1968	24
1973	53
1974	50
1975	35
1976	38
1977	18
1978	25
1979	35
1980	24
1981	34
1982	42
1983	36
1984	28
1985	27
1986	26
1987	16
1988	31
1989	27
1990	21
1991	33
1992	32
1993	29
1994	9
1995	36
1996	28
1997	21
1998	36
1999	24
2005	20
2006	35
2007	26
2008	33
2009	29
2010	33
2011	27
2012	21
2013	11
2014	11
2015	34
2016	38
2017	19
2018	29
2019	37
2020	22
2021	13
2022	14
2023	14
2024	25
2025	76
2026	4

All-Time Record Progression

2 new records

2 all-time records were set at Chichi Jima Bonin Is between 30 July 2006 and 31 July 2024. Each dot is a new record.

When Chichi Jima Bonin Is set new all-time records
Date	Kind	Detail
2006-07-30	Record high maximum temperature	Record high maximum temperature 34.1 C (93.4 F)
2024-07-31	Record high minimum temperature	Record high minimum temperature 28.7 C (83.7 F)

Wettest Day of Each Month

Dec: 300.0 mm (11.8 in)

The wettest day on record for each calendar month at Chichi Jima Bonin Is. The most was 300.0 mm (11.8 in) on 22 December 1975.

Record daily precipitation for each month at Chichi Jima Bonin Is
Month	Record daily precipitation (mm)	Date
Jan	106.9 mm (4.2 in)	4 January 1986
Feb	222.0 mm (8.7 in)	24 February 1982
Mar	103.9 mm (4.1 in)	31 March 2020
Apr	200.9 mm (7.9 in)	22 April 1997
May	151.9 mm (6.0 in)	24 May 1992
Jun	164.1 mm (6.5 in)	6 June 2005
Jul	106.9 mm (4.2 in)	29 July 2021
Aug	198.1 mm (7.8 in)	26 August 1998
Sep	288.0 mm (11.3 in)	19 September 2015
Oct	231.9 mm (9.1 in)	1 October 1989
Nov	157.0 mm (6.2 in)	7 November 1980
Dec	300.0 mm (11.8 in)	22 December 1975

Period of Record Coverage

1966 to 2026

52 years of record at Chichi Jima Bonin Is, 1966 to 2026. 27 years have data for under 90 percent of days and are left out of rankings: 1966, 1968, 1973, 1974, 1975, 1977, 1978, 1982 and others.

Days with data per year at Chichi Jima Bonin Is
Year	Days with data	Share of year	Complete
1966	233	64%	No
1967	365	100%	Yes
1968	177	48%	No
1973	326	89%	No
1974	321	88%	No
1975	322	88%	No
1976	338	92%	Yes
1977	243	67%	No
1978	315	86%	No
1979	330	90%	Yes
1980	351	96%	Yes
1981	347	95%	Yes
1982	321	88%	No
1983	343	94%	Yes
1984	342	93%	Yes
1985	346	95%	Yes
1986	349	96%	Yes
1987	349	96%	Yes
1988	335	92%	Yes
1989	329	90%	Yes
1990	350	96%	Yes
1991	345	95%	Yes
1992	328	90%	No
1993	328	90%	No
1994	326	89%	No
1995	320	88%	No
1996	333	91%	Yes
1997	332	91%	Yes
1998	333	91%	Yes
1999	313	86%	No
2005	329	90%	Yes
2006	328	90%	No
2007	332	91%	Yes
2008	333	91%	Yes
2009	331	91%	Yes
2010	335	92%	Yes
2011	338	93%	Yes
2012	335	92%	Yes
2013	108	30%	No
2014	2	1%	No
2015	270	74%	No
2016	325	89%	No
2017	281	77%	No
2018	271	74%	No
2019	267	73%	No
2020	62	17%	No
2021	3	1%	No
2022	90	25%	No
2023	5	1%	No
2024	2	1%	No
2025	360	99%	Yes
2026	43	12%	No

Latest Records

Latest records at Chichi Jima Bonin Is
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 February 2026	Chichi Jima Bonin Is, JP	daily low max	15.4 C (59.7 F)	0.7 C (1.3 F)	0 years	9 of 100 (Routine)
19 January 2026	Chichi Jima Bonin Is, JP	daily high min	17.7 C (63.9 F)	0.9 C (1.6 F)	36 years	20 of 100 (Routine)
5 January 2026	Chichi Jima Bonin Is, JP	daily high min	19.6 C (67.3 F)	0.3 C (0.5 F)	31 years	16 of 100 (Routine)
1 January 2026	Chichi Jima Bonin Is, JP	daily high min	19.3 C (66.7 F)	0.7 C (1.3 F)	19 years	14 of 100 (Routine)
25 December 2025	Chichi Jima Bonin Is, JP	daily high min	22.1 C (71.8 F)	0.5 C (0.9 F)	31 years	17 of 100 (Routine)
25 December 2025	Chichi Jima Bonin Is, JP	daily high max	24.6 C (76.3 F)	0.2 C (0.4 F)	8 years	9 of 100 (Routine)
24 December 2025	Chichi Jima Bonin Is, JP	daily high min	21.2 C (70.2 F)	0.1 C (0.2 F)	10 years	9 of 100 (Routine)
21 December 2025	Chichi Jima Bonin Is, JP	daily high min	21.2 C (70.2 F)	0.8 C (1.4 F)	16 years	14 of 100 (Routine)
20 December 2025	Chichi Jima Bonin Is, JP	daily high min	21.9 C (71.4 F)	0.8 C (1.4 F)	59 years	26 of 100 (Routine)
19 December 2025	Chichi Jima Bonin Is, JP	daily high min	20.5 C (68.9 F)	0.4 C (0.7 F)	19 years	12 of 100 (Routine)
14 December 2025	Chichi Jima Bonin Is, JP	daily high min	21.6 C (70.9 F)	0.1 C (0.2 F)	32 years	15 of 100 (Routine)
14 December 2025	Chichi Jima Bonin Is, JP	daily high max (Tie)	26.2 C (79.2 F)	tie	16 years	2 of 100 (Routine)
24 November 2025	Chichi Jima Bonin Is, JP	daily high max	27.6 C (81.7 F)	0.9 C (1.6 F)	58 years	28 of 100 (Routine)
17 November 2025	Chichi Jima Bonin Is, JP	daily high max (Tie)	27.8 C (82.0 F)	tie	58 years	5 of 100 (Routine)
13 November 2025	Chichi Jima Bonin Is, JP	monthly high min	26.3 C (79.3 F)	0.3 C (0.5 F)	52 years	32 of 100 (Routine)
11 November 2025	Chichi Jima Bonin Is, JP	daily high min (Tie)	24.0 C (75.2 F)	tie	48 years	5 of 100 (Routine)
10 November 2025	Chichi Jima Bonin Is, JP	daily high min	24.8 C (76.6 F)	0.8 C (1.4 F)	51 years	24 of 100 (Routine)
9 November 2025	Chichi Jima Bonin Is, JP	daily high min	24.6 C (76.3 F)	0.3 C (0.5 F)	32 years	16 of 100 (Routine)
8 November 2025	Chichi Jima Bonin Is, JP	daily high min (Tie)	24.4 C (75.9 F)	tie	4 years	1 of 100 (Routine)
5 November 2025	Chichi Jima Bonin Is, JP	daily high min	25.0 C (77.0 F)	0.3 C (0.5 F)	0 years	7 of 100 (Routine)

Extremes by Year

1966 to 2026

Yearly extremes at Chichi Jima Bonin Is: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	34.1 C (93.4 F)	2006	32.0 C (89.6 F)	52
Coldest night (TNn)	4.0 C (39.2 F)	1977	11.1 C (52.0 F)	52
Wettest day (Rx1day)	300.0 mm (11.8 in)	1975	113.5 mm (4.5 in)	52
Wettest five days (Rx5day)	403.1 mm (15.9 in)	2017	159.9 mm (6.3 in)	51
Longest dry spell (CDD)	35 days	2016	13 days	52

Hottest day (TXx)

The hottest day of the year at Chichi Jima Bonin Is, 1966 to 2026. The record is 34.1 C (93.4 F) in 2006, marked on the chart; the median year is 32.0 C (89.6 F).

Hottest day (TXx) at Chichi Jima Bonin Is by year
Year	Hottest day (TXx)
1966	32.2 C (90.0 F)
1967	32.2 C (90.0 F)
1968	31.1 C (88.0 F)
1973	31.0 C (87.8 F)
1974	32.0 C (89.6 F)
1975	32.0 C (89.6 F)
1976	32.0 C (89.6 F)
1977	32.0 C (89.6 F)
1978	31.0 C (87.8 F)
1979	32.0 C (89.6 F)
1980	33.0 C (91.4 F)
1981	32.0 C (89.6 F)
1982	31.1 C (88.0 F)
1983	31.9 C (89.4 F)
1984	32.4 C (90.3 F)
1985	31.4 C (88.5 F)
1986	31.7 C (89.1 F)
1987	32.1 C (89.8 F)
1988	30.6 C (87.1 F)
1989	32.6 C (90.7 F)
1990	31.5 C (88.7 F)
1991	33.8 C (92.8 F)
1992	31.5 C (88.7 F)
1993	32.7 C (90.9 F)
1994	32.1 C (89.8 F)
1995	32.5 C (90.5 F)
1996	31.7 C (89.1 F)
1997	32.9 C (91.2 F)
1998	31.7 C (89.1 F)
1999	31.8 C (89.2 F)
2005	32.5 C (90.5 F)
2006	34.1 C (93.4 F)
2007	32.1 C (89.8 F)
2008	32.5 C (90.5 F)
2009	32.2 C (90.0 F)
2010	32.1 C (89.8 F)
2011	33.0 C (91.4 F)
2012	31.8 C (89.2 F)
2013	29.2 C (84.6 F)
2014	30.6 C (87.1 F)
2015	33.7 C (92.7 F)
2016	32.9 C (91.2 F)
2017	33.6 C (92.5 F)
2018	32.9 C (91.2 F)
2019	32.8 C (91.0 F)
2020	26.5 C (79.7 F)
2021	31.1 C (88.0 F)
2022	32.7 C (90.9 F)
2023	30.7 C (87.3 F)
2024	30.6 C (87.1 F)
2025	33.0 C (91.4 F)
2026	22.8 C (73.0 F)

Coldest night (TNn)

The coldest night of the year at Chichi Jima Bonin Is, 1966 to 2026. The record is 4.0 C (39.2 F) in 1977, marked on the chart; the median year is 11.1 C (52.0 F).

Coldest night (TNn) at Chichi Jima Bonin Is by year
Year	Coldest night (TNn)
1966	14.4 C (57.9 F)
1967	11.1 C (52.0 F)
1968	10.6 C (51.1 F)
1973	10.0 C (50.0 F)
1974	10.0 C (50.0 F)
1975	10.0 C (50.0 F)
1976	6.0 C (42.8 F)
1977	4.0 C (39.2 F)
1978	11.0 C (51.8 F)
1979	11.0 C (51.8 F)
1980	9.0 C (48.2 F)
1981	9.0 C (48.2 F)
1982	10.0 C (50.0 F)
1983	10.4 C (50.7 F)
1984	9.4 C (48.9 F)
1985	9.9 C (49.8 F)
1986	10.3 C (50.5 F)
1987	11.2 C (52.2 F)
1988	11.9 C (53.4 F)
1989	12.6 C (54.7 F)
1990	11.2 C (52.2 F)
1991	10.1 C (50.2 F)
1992	12.2 C (54.0 F)
1993	11.1 C (52.0 F)
1994	11.7 C (53.1 F)
1995	10.8 C (51.4 F)
1996	9.6 C (49.3 F)
1997	11.3 C (52.3 F)
1998	12.0 C (53.6 F)
1999	12.2 C (54.0 F)
2005	10.7 C (51.3 F)
2006	11.0 C (51.8 F)
2007	12.8 C (55.0 F)
2008	11.7 C (53.1 F)
2009	11.1 C (52.0 F)
2010	13.0 C (55.4 F)
2011	9.7 C (49.5 F)
2012	11.4 C (52.5 F)
2013	11.2 C (52.2 F)
2014	11.5 C (52.7 F)
2015	10.5 C (50.9 F)
2016	12.6 C (54.7 F)
2017	11.1 C (52.0 F)
2018	11.6 C (52.9 F)
2019	10.5 C (50.9 F)
2020	12.8 C (55.0 F)
2021	11.0 C (51.8 F)
2022	11.1 C (52.0 F)
2023	11.6 C (52.9 F)
2024	11.7 C (53.1 F)
2025	10.3 C (50.5 F)
2026	12.0 C (53.6 F)

Wettest day (Rx1day)

The wettest day of the year at Chichi Jima Bonin Is, 1966 to 2026. The record is 300.0 mm (11.8 in) in 1975, marked on the chart; the median year is 113.5 mm (4.5 in).

Wettest day (Rx1day) at Chichi Jima Bonin Is by year
Year	Wettest day (Rx1day)
1966	118.1 mm (4.6 in)
1967	100.8 mm (4.0 in)
1968	58.2 mm (2.3 in)
1973	190.0 mm (7.5 in)
1974	78.0 mm (3.1 in)
1975	300.0 mm (11.8 in)
1976	61.0 mm (2.4 in)
1977	66.0 mm (2.6 in)
1978	97.0 mm (3.8 in)
1979	150.1 mm (5.9 in)
1980	157.0 mm (6.2 in)
1981	122.9 mm (4.8 in)
1982	222.0 mm (8.7 in)
1983	79.0 mm (3.1 in)
1984	119.9 mm (4.7 in)
1985	65.0 mm (2.6 in)
1986	169.9 mm (6.7 in)
1987	113.0 mm (4.4 in)
1988	95.0 mm (3.7 in)
1989	231.9 mm (9.1 in)
1990	56.9 mm (2.2 in)
1991	153.9 mm (6.1 in)
1992	151.9 mm (6.0 in)
1993	172.0 mm (6.8 in)
1994	46.0 mm (1.8 in)
1995	98.0 mm (3.9 in)
1996	90.9 mm (3.6 in)
1997	200.9 mm (7.9 in)
1998	198.1 mm (7.8 in)
1999	135.1 mm (5.3 in)
2005	164.1 mm (6.5 in)
2006	141.0 mm (5.6 in)
2007	93.5 mm (3.7 in)
2008	53.1 mm (2.1 in)
2009	111.0 mm (4.4 in)
2010	104.4 mm (4.1 in)
2011	91.4 mm (3.6 in)
2012	115.1 mm (4.5 in)
2013	137.4 mm (5.4 in)
2014	114.0 mm (4.5 in)
2015	288.0 mm (11.3 in)
2016	117.1 mm (4.6 in)
2017	228.1 mm (9.0 in)
2018	45.5 mm (1.8 in)
2019	175.0 mm (6.9 in)
2020	103.9 mm (4.1 in)
2021	113.0 mm (4.4 in)
2022	122.9 mm (4.8 in)
2023	106.9 mm (4.2 in)
2024	103.9 mm (4.1 in)
2025	39.0 mm (1.5 in)
2026	0.5 mm (0.02 in)

Wettest five days (Rx5day)

The wettest five days of the year at Chichi Jima Bonin Is, 1966 to 2026. The record is 403.1 mm (15.9 in) in 2017, marked on the chart; the median year is 159.9 mm (6.3 in).

Wettest five days (Rx5day) at Chichi Jima Bonin Is by year
Year	Wettest five days (Rx5day)
1966	192.3 mm (7.6 in)
1967	170.7 mm (6.7 in)
1968	125.1 mm (4.9 in)
1973	234.9 mm (9.2 in)
1974	114.1 mm (4.5 in)
1975	300.0 mm (11.8 in)
1976	89.3 mm (3.5 in)
1977	124.1 mm (4.9 in)
1978	144.0 mm (5.7 in)
1979	159.0 mm (6.3 in)
1980	169.9 mm (6.7 in)
1981	229.8 mm (9.0 in)
1982	62.0 mm (2.4 in)
1983	128.3 mm (5.1 in)
1984	124.5 mm (4.9 in)
1985	56.7 mm (2.2 in)
1986	213.9 mm (8.4 in)
1987	278.9 mm (11.0 in)
1988	165.3 mm (6.5 in)
1989	310.4 mm (12.2 in)
1990	62.9 mm (2.5 in)
1991	200.9 mm (7.9 in)
1992	199.9 mm (7.9 in)
1993	136.1 mm (5.4 in)
1994	89.7 mm (3.5 in)
1995	30.7 mm (1.2 in)
1996	190.0 mm (7.5 in)
1997	168.0 mm (6.6 in)
1998	362.0 mm (14.3 in)
1999	221.8 mm (8.7 in)
2005	269.5 mm (10.6 in)
2006	181.6 mm (7.1 in)
2007	119.2 mm (4.7 in)
2008	77.9 mm (3.1 in)
2009	111.0 mm (4.4 in)
2010	159.9 mm (6.3 in)
2011	135.5 mm (5.3 in)
2012	168.2 mm (6.6 in)
2013	162.6 mm (6.4 in)
2014	150.0 mm (5.9 in)
2015	291.5 mm (11.5 in)
2016	139.2 mm (5.5 in)
2017	403.1 mm (15.9 in)
2018	100.8 mm (4.0 in)
2019	237.8 mm (9.4 in)
2020	116.0 mm (4.6 in)
2021	195.3 mm (7.7 in)
2022	130.5 mm (5.1 in)
2023	212.1 mm (8.4 in)
2024	114.8 mm (4.5 in)
2025	48.0 mm (1.9 in)
2026	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Chichi Jima Bonin Is, 1966 to 2026. The record is 35 days in 2016, marked on the chart; the median year is 13 days.

Longest dry spell (CDD) at Chichi Jima Bonin Is by year
Year	Longest dry spell (CDD)
1966	11 days
1967	14 days
1968	14 days
1973	13 days
1974	17 days
1975	21 days
1976	22 days
1977	15 days
1978	23 days
1979	16 days
1980	12 days
1981	14 days
1982	3 days
1983	2 days
1984	1 day
1985	3 days
1986	4 days
1987	5 days
1988	5 days
1989	4 days
1990	4 days
1991	3 days
1992	3 days
1993	4 days
1994	4 days
1995	3 days
1996	4 days
1997	5 days
1998	4 days
1999	10 days
2005	34 days
2006	27 days
2007	33 days
2008	20 days
2009	15 days
2010	14 days
2011	24 days
2012	22 days
2013	25 days
2014	26 days
2015	18 days
2016	35 days
2017	18 days
2018	13 days
2019	12 days
2020	16 days
2021	12 days
2022	20 days
2023	11 days
2024	29 days
2025	8 days
2026	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.

Download the Data

Data for Chichi Jima Bonin Is standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Chichi Jima Bonin Is 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 2026-10-12. Last revised 12 October 2026 (2026-10-12).