Chichijima Weather Records (JA000047971)

Record envelope, standing records and threshold days for Chichijima (JA000047971), Japan, with 36 years of record.

Key Facts for Chichijima

Chichijima (JA000047971) is a weather station in Japan at 27.10 latitude and 142.18 longitude, 8 m (26 ft) above sea level.
The station reports from 1969 to 2004, 36 years of record.
1,464 records set at Chichijima still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Chichijima set a daily record high maximum temperature of 24.3 C (75.7 F) on 29 December 2004.

About the Station

Location: Japan, 27.10 latitude, 142.18 longitude.
Elevation: 8 m (26 ft).
Period of record: 1969 to 2004, 36 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 Chichijima. 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 Chichijima, 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)	8.9 C (48.0 F)	n/a	n/a
Feb	25.4 C (77.7 F)	7.8 C (46.0 F)	n/a	n/a
Mar	26.6 C (79.9 F)	9.2 C (48.6 F)	n/a	n/a
Apr	28.4 C (83.1 F)	10.7 C (51.3 F)	n/a	n/a
May	29.8 C (85.6 F)	13.9 C (57.0 F)	n/a	n/a
Jun	32.9 C (91.2 F)	17.7 C (63.9 F)	n/a	n/a
Jul	33.8 C (92.8 F)	20.8 C (69.4 F)	n/a	n/a
Aug	33.3 C (91.9 F)	22.2 C (72.0 F)	n/a	n/a
Sep	33.1 C (91.6 F)	19.6 C (67.3 F)	n/a	n/a
Oct	31.4 C (88.5 F)	17.2 C (63.0 F)	n/a	n/a
Nov	30.2 C (86.4 F)	13.2 C (55.8 F)	n/a	n/a
Dec	27.2 C (81.0 F)	11.4 C (52.5 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Chichijima still stand. 1973 holds the most, with 67.

Standing records at Chichijima by the year they were set
Year set	Standing records
1969	45
1970	41
1971	39
1972	40
1973	67
1974	47
1975	37
1976	47
1977	29
1978	22
1979	53
1980	36
1981	39
1982	44
1983	45
1984	45
1985	37
1986	31
1987	27
1988	44
1989	31
1990	28
1991	60
1992	55
1993	43
1994	23
1995	58
1996	42
1997	35
1998	52
1999	34
2000	62
2001	40
2002	24
2003	29
2004	33

Wettest Day of Each Month

Nov: 348.0 mm (13.7 in)

The wettest day on record for each calendar month at Chichijima. The most was 348.0 mm (13.7 in) on 7 November 1997.

Record daily precipitation for each month at Chichijima
Month	Record daily precipitation (mm)	Date
Jan	107.0 mm (4.2 in)	4 January 1986
Feb	70.0 mm (2.8 in)	2 February 1988
Mar	78.0 mm (3.1 in)	14 March 1999
Apr	200.0 mm (7.9 in)	22 April 1997
May	152.0 mm (6.0 in)	24 May 1992
Jun	122.0 mm (4.8 in)	22 June 1987
Jul	114.0 mm (4.5 in)	29 July 2000
Aug	206.0 mm (8.1 in)	26 August 1998
Sep	206.0 mm (8.1 in)	30 September 1989
Oct	157.0 mm (6.2 in)	29 October 1972
Nov	348.0 mm (13.7 in)	7 November 1997
Dec	109.0 mm (4.3 in)	23 December 1972

Period of Record Coverage

1969 to 2004

36 years of record at Chichijima, 1969 to 2004. 2 years have data for under 90 percent of days and are left out of rankings: 2003, 2004.

Days with data per year at Chichijima
Year	Days with data	Share of year	Complete
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	365	100%	Yes
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	364	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	331	91%	Yes
2002	337	92%	Yes
2003	319	87%	No
2004	325	89%	No

Latest Records

Latest records at Chichijima
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
29 December 2004	Chichijima, JP	daily high max	24.3 C (75.7 F)	1.0 C (1.8 F)	17 years	13 of 100 (Routine)
21 December 2004	Chichijima, JP	daily rain (Tie)	32.0 mm (1.3 in)	tie	13 years	1 of 100 (Routine)
16 December 2004	Chichijima, JP	daily rain	26.9 mm (1.1 in)	4.8 mm (0.19 in)	1 year	6 of 100 (Routine)
13 December 2004	Chichijima, JP	daily high max	26.6 C (79.9 F)	0.8 C (1.4 F)	16 years	11 of 100 (Routine)
27 November 2004	Chichijima, JP	daily high max	27.1 C (80.8 F)	0.2 C (0.4 F)	7 years	6 of 100 (Routine)
19 November 2004	Chichijima, JP	daily high max (Tie)	27.9 C (82.2 F)	tie	25 years	2 of 100 (Routine)
17 November 2004	Chichijima, JP	daily high min	24.1 C (75.4 F)	0.2 C (0.4 F)	27 years	11 of 100 (Routine)
13 November 2004	Chichijima, JP	daily high max	27.6 C (81.7 F)	0.1 C (0.2 F)	10 years	6 of 100 (Routine)
2 November 2004	Chichijima, JP	daily high max	29.4 C (84.9 F)	0.3 C (0.5 F)	5 years	5 of 100 (Routine)
27 October 2004	Chichijima, JP	daily high max (Tie)	29.3 C (84.7 F)	tie	10 years	1 of 100 (Routine)
21 October 2004	Chichijima, JP	daily high max	30.0 C (86.0 F)	0.1 C (0.2 F)	21 years	9 of 100 (Routine)
15 October 2004	Chichijima, JP	daily rain	22.6 mm (0.9 in)	6.6 mm (0.26 in)	8 years	8 of 100 (Routine)
13 October 2004	Chichijima, JP	daily high max	31.1 C (88.0 F)	0.7 C (1.3 F)	1 year	8 of 100 (Routine)
12 October 2004	Chichijima, JP	daily high max	30.6 C (87.1 F)	0.2 C (0.4 F)	30 years	13 of 100 (Routine)
10 October 2004	Chichijima, JP	daily high min (Tie)	27.6 C (81.7 F)	tie	13 years	1 of 100 (Routine)
6 October 2004	Chichijima, JP	daily high max	30.8 C (87.4 F)	0.5 C (0.9 F)	26 years	13 of 100 (Routine)
10 September 2004	Chichijima, JP	daily high min	27.4 C (81.3 F)	0.1 C (0.2 F)	24 years	10 of 100 (Routine)
2 September 2004	Chichijima, JP	daily high min	28.2 C (82.8 F)	0.2 C (0.4 F)	35 years	14 of 100 (Routine)
22 August 2004	Chichijima, JP	daily high min	28.1 C (82.6 F)	0.6 C (1.1 F)	16 years	12 of 100 (Routine)
3 August 2004	Chichijima, JP	daily rain	22.1 mm (0.9 in)	7.1 mm (0.28 in)	18 years	11 of 100 (Routine)

Climate Trend

32 complete years, 1969 to 2000

One stripe for each of 32 complete years at Chichijima, 1969 to 2000. Blue stripes are years cooler than the station's own mean of 23.0 C (73.4 F); red stripes are warmer. The coolest year was 1984, at 22.4 C (72.2 F), and the warmest was 1998, at 24.0 C (75.1 F). The strongest colour marks a difference of 1.0 C (1.8 F).

Annual mean temperature at Chichijima as warming stripes, 1969 to 2000
Year	Annual mean temperature	Difference from the station mean
1969	23.0 C	-0.04 C
1970	22.5 C	-0.50 C
1971	22.8 C	-0.25 C
1972	23.1 C	+0.06 C
1973	23.0 C	-0.05 C
1974	22.9 C	-0.07 C
1975	22.6 C	-0.37 C
1976	22.5 C	-0.49 C
1977	23.0 C	-0.02 C
1978	23.2 C	+0.18 C
1979	23.4 C	+0.43 C
1980	23.1 C	+0.05 C
1981	22.6 C	-0.41 C
1982	22.5 C	-0.48 C
1983	22.9 C	-0.12 C
1984	22.4 C	-0.64 C
1985	23.1 C	+0.12 C
1986	22.8 C	-0.24 C
1987	23.4 C	+0.37 C
1988	22.9 C	-0.09 C
1989	22.9 C	-0.09 C
1990	23.0 C	+0.01 C
1991	23.7 C	+0.73 C
1992	22.9 C	-0.10 C
1993	23.1 C	+0.07 C
1994	23.3 C	+0.31 C
1995	23.0 C	+0.04 C
1996	22.6 C	-0.38 C
1997	23.3 C	+0.32 C
1998	24.0 C	+0.95 C
1999	23.5 C	+0.45 C
2000	23.4 C	+0.35 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1969 to 2000. In Fahrenheit: 0.3 F (0.1 to 0.6) 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 Chichijima
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (0.1 to 0.3) per decade	0.3 F (0.1 to 0.6) per decade	1969 to 2000	32	Rise
Mean daily maximum	0.1 C (-0.1 to 0.2) per decade	0.1 F (-0.1 to 0.4) per decade	1969 to 2000	32	Not clearly different from zero
Mean daily minimum	0.3 C (0.2 to 0.4) per decade	0.5 F (0.3 to 0.8) per decade	1969 to 2000	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

1969 to 2004

Yearly extremes at Chichijima: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	33.8 C (92.8 F)	1991	32.0 C (89.5 F)	36
Coldest night (TNn)	7.8 C (46.0 F)	1969	10.7 C (51.3 F)	36
Wettest day (Rx1day)	348.0 mm (13.7 in)	1997	101.0 mm (4.0 in)	36
Wettest five days (Rx5day)	503.0 mm (19.8 in)	1997	168.5 mm (6.6 in)	36
Longest dry spell (CDD)	30 days	1982	18 days	35

Hottest day (TXx)

The hottest day of the year at Chichijima, 1969 to 2004. The record is 33.8 C (92.8 F) in 1991, marked on the chart; the median year is 32.0 C (89.5 F).

Hottest day (TXx) at Chichijima by year
Year	Hottest day (TXx)
1969	32.7 C (90.9 F)
1970	31.6 C (88.9 F)
1971	32.2 C (90.0 F)
1972	32.0 C (89.6 F)
1973	31.4 C (88.5 F)
1974	31.8 C (89.2 F)
1975	31.9 C (89.4 F)
1976	32.0 C (89.6 F)
1977	31.6 C (88.9 F)
1978	31.2 C (88.2 F)
1979	32.4 C (90.3 F)
1980	33.3 C (91.9 F)
1981	31.9 C (89.4 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)
2000	31.8 C (89.2 F)
2001	33.6 C (92.5 F)
2002	32.1 C (89.8 F)
2003	32.6 C (90.7 F)
2004	32.9 C (91.2 F)

Coldest night (TNn)

The coldest night of the year at Chichijima, 1969 to 2004. The record is 7.8 C (46.0 F) in 1969, marked on the chart; the median year is 10.7 C (51.3 F).

Coldest night (TNn) at Chichijima by year
Year	Coldest night (TNn)
1969	7.8 C (46.0 F)
1970	9.3 C (48.7 F)
1971	8.9 C (48.0 F)
1972	11.8 C (53.2 F)
1973	10.0 C (50.0 F)
1974	10.4 C (50.7 F)
1975	9.6 C (49.3 F)
1976	10.1 C (50.2 F)
1977	10.6 C (51.1 F)
1978	10.7 C (51.3 F)
1979	10.7 C (51.3 F)
1980	8.9 C (48.0 F)
1981	9.2 C (48.6 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	11.1 C (52.0 F)
1988	11.9 C (53.4 F)
1989	12.0 C (53.6 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	11.7 C (53.1 F)
1999	12.2 C (54.0 F)
2000	11.4 C (52.5 F)
2001	10.9 C (51.6 F)
2002	11.1 C (52.0 F)
2003	10.9 C (51.6 F)
2004	10.7 C (51.3 F)

Wettest day (Rx1day)

The wettest day of the year at Chichijima, 1969 to 2004. The record is 348.0 mm (13.7 in) in 1997, marked on the chart; the median year is 101.0 mm (4.0 in).

Wettest day (Rx1day) at Chichijima by year
Year	Wettest day (Rx1day)
1969	119.0 mm (4.7 in)
1970	190.0 mm (7.5 in)
1971	59.0 mm (2.3 in)
1972	157.0 mm (6.2 in)
1973	66.0 mm (2.6 in)
1974	122.0 mm (4.8 in)
1975	143.0 mm (5.6 in)
1976	104.0 mm (4.1 in)
1977	67.0 mm (2.6 in)
1978	84.0 mm (3.3 in)
1979	70.0 mm (2.8 in)
1980	159.0 mm (6.3 in)
1981	118.0 mm (4.6 in)
1982	122.0 mm (4.8 in)
1983	78.0 mm (3.1 in)
1984	81.0 mm (3.2 in)
1985	64.0 mm (2.5 in)
1986	153.0 mm (6.0 in)
1987	122.0 mm (4.8 in)
1988	98.0 mm (3.9 in)
1989	206.0 mm (8.1 in)
1990	61.0 mm (2.4 in)
1991	152.0 mm (6.0 in)
1992	152.0 mm (6.0 in)
1993	87.0 mm (3.4 in)
1994	69.0 mm (2.7 in)
1995	85.0 mm (3.3 in)
1996	88.0 mm (3.5 in)
1997	348.0 mm (13.7 in)
1998	206.0 mm (8.1 in)
1999	135.0 mm (5.3 in)
2000	114.0 mm (4.5 in)
2001	91.4 mm (3.6 in)
2002	90.2 mm (3.6 in)
2003	86.6 mm (3.4 in)
2004	75.9 mm (3.0 in)

Wettest five days (Rx5day)

The wettest five days of the year at Chichijima, 1969 to 2004. The record is 503.0 mm (19.8 in) in 1997, marked on the chart; the median year is 168.5 mm (6.6 in).

Wettest five days (Rx5day) at Chichijima by year
Year	Wettest five days (Rx5day)
1969	216.0 mm (8.5 in)
1970	208.0 mm (8.2 in)
1971	73.0 mm (2.9 in)
1972	178.0 mm (7.0 in)
1973	88.0 mm (3.5 in)
1974	153.0 mm (6.0 in)
1975	238.0 mm (9.4 in)
1976	116.0 mm (4.6 in)
1977	134.0 mm (5.3 in)
1978	160.0 mm (6.3 in)
1979	162.0 mm (6.4 in)
1980	206.0 mm (8.1 in)
1981	286.0 mm (11.3 in)
1982	183.0 mm (7.2 in)
1983	129.0 mm (5.1 in)
1984	172.0 mm (6.8 in)
1985	88.0 mm (3.5 in)
1986	214.0 mm (8.4 in)
1987	276.0 mm (10.9 in)
1988	165.0 mm (6.5 in)
1989	310.0 mm (12.2 in)
1990	78.0 mm (3.1 in)
1991	240.0 mm (9.4 in)
1992	216.0 mm (8.5 in)
1993	135.0 mm (5.3 in)
1994	179.0 mm (7.0 in)
1995	163.0 mm (6.4 in)
1996	188.0 mm (7.4 in)
1997	503.0 mm (19.8 in)
1998	360.0 mm (14.2 in)
1999	210.0 mm (8.3 in)
2000	126.0 mm (5.0 in)
2001	124.7 mm (4.9 in)
2002	138.2 mm (5.4 in)
2003	61.8 mm (2.4 in)
2004	111.2 mm (4.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Chichijima, 1969 to 2004. The record is 30 days in 1982, marked on the chart; the median year is 18 days.

Longest dry spell (CDD) at Chichijima by year
Year	Longest dry spell (CDD)
1969	18 days
1970	22 days
1971	25 days
1972	17 days
1973	12 days
1974	25 days
1975	18 days
1976	16 days
1977	15 days
1978	16 days
1979	17 days
1980	18 days
1981	20 days
1982	30 days
1983	24 days
1984	24 days
1985	14 days
1986	17 days
1987	27 days
1988	13 days
1989	12 days
1990	17 days
1991	18 days
1992	15 days
1993	18 days
1994	14 days
1995	25 days
1996	30 days
1997	25 days
1998	21 days
1999	23 days
2000	16 days
2001	n/a
2002	3 days
2003	14 days
2004	26 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

33 years, 1969 to 2004

A day with at least 105.2 mm (4.1 in) of rain is expected about once in 2 years. A day with at least 346.3 mm (13.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Chichijima: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	105.2 mm (4.1 in)
5 years	152.8 mm (6.0 in)
10 years	190.2 mm (7.5 in)
25 years	245.3 mm (9.7 in)
50 years	292.8 mm (11.5 in)	Longer than the 33 years of record
100 years	346.3 mm (13.6 in)	Longer than the 33 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, 33 years of values from 1969 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: 348.0 mm (13.7 in) in 1997; 206.0 mm (8.1 in) in 1989; 206.0 mm (8.1 in) in 1998.

Download the Data

Data for Chichijima standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Chichijima 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 2026-10-16 (16 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).