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Shimojishima Weather Records (JA000047927)

Record envelope, standing records and threshold days for Shimojishima (JA000047927), Japan, with 40 years of record.

Key Facts for Shimojishima

  • Shimojishima (JA000047927) is a weather station in Japan at 24.82 latitude and 125.13 longitude, 16 m (52 ft) above sea level.
  • The station reports from 1961 to 2000, 40 years of record.
  • 1,464 records set at Shimojishima still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Shimojishima set a daily record high maximum temperature of 26.9 C (80.4 F) on 20 December 2000.

About the Station

  • Location: Japan, 24.82 latitude, 125.13 longitude.
  • Elevation: 16 m (52 ft).
  • Period of record: 1961 to 2000, 40 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Shimojishima, with 2026 drawn through them The band shows the record high and record low for each calendar day at Shimojishima. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. 010203040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Shimojishima. 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 Shimojishima, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan27.0 C (80.6 F)6.9 C (44.4 F)n/an/a
Feb26.9 C (80.4 F)7.3 C (45.1 F)n/an/a
Mar28.6 C (83.5 F)8.6 C (47.5 F)n/an/a
Apr30.7 C (87.3 F)11.4 C (52.5 F)n/an/a
May33.3 C (91.9 F)15.2 C (59.4 F)n/an/a
Jun35.1 C (95.2 F)17.4 C (63.3 F)n/an/a
Jul35.3 C (95.5 F)21.4 C (70.5 F)n/an/a
Aug34.2 C (93.6 F)21.9 C (71.4 F)n/an/a
Sep34.2 C (93.6 F)19.7 C (67.5 F)n/an/a
Oct31.6 C (88.9 F)17.3 C (63.1 F)n/an/a
Nov30.9 C (87.6 F)12.9 C (55.2 F)n/an/a
Dec27.7 C (81.9 F)9.6 C (49.3 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Shimojishima by the year they were set 1,464 records at Shimojishima still stand. 1998 holds the most, with 110. 0501001501961: 181962: 501963: 741964: 321965: 321966: 621967: 311968: 441969: 461970: 291971: 701972: 441973: 421974: 381975: 291976: 371977: 361978: 281979: 301980: 201981: 331982: 211983: 511984: 191985: 301986: 151987: 511988: 361989: 331990: 151991: 211992: 281993: 341994: 261995: 231996: 221997: 271998: 1101999: 392000: 381961196519691973197719811985198919931997
1,464 records at Shimojishima still stand. 1998 holds the most, with 110.
Standing records at Shimojishima by the year they were set
Year setStanding records
196118
196250
196374
196432
196532
196662
196731
196844
196946
197029
197170
197244
197342
197438
197529
197637
197736
197828
197930
198020
198133
198221
198351
198419
198530
198615
198751
198836
198933
199015
199121
199228
199334
199426
199523
199622
199727
1998110
199939
200038

All-Time Record Progression

1 new records
When Shimojishima set new all-time records 1 all-time records were set at Shimojishima between 17 July 1993 and 17 July 1993. Each dot is a new record. Record high minimum temperature17 July 1993: Record high minimum temperature 29.1 C (84.4 F)
1 all-time records were set at Shimojishima between 17 July 1993 and 17 July 1993. Each dot is a new record.
When Shimojishima set new all-time records
DateKindDetail
1993-07-17Record high minimum temperatureRecord high minimum temperature 29.1 C (84.4 F)

Wettest Day of Each Month

Aug: 322.0 mm (12.7 in)
Record daily precipitation for each month at Shimojishima The wettest day on record for each calendar month at Shimojishima. The most was 322.0 mm (12.7 in) on 16 August 1985. 0100200300400 Jan: 94.0 mm (3.7 in), 2 January 1987 Jan Feb: 114.0 mm (4.5 in), 8 February 1985 Feb Mar: 136.0 mm (5.4 in), 15 March 1993 Mar Apr: 284.0 mm (11.2 in), 28 April 1988 Apr May: 213.0 mm (8.4 in), 31 May 1996 May Jun: 248.0 mm (9.8 in), 15 June 1979 Jun Jul: 181.0 mm (7.1 in), 3 July 1970 Jul Aug: 322.0 mm (12.7 in), 16 August 1985 Aug Sep: 236.0 mm (9.3 in), 5 September 1966 Sep Oct: 160.0 mm (6.3 in), 9 October 1994 Oct Nov: 251.0 mm (9.9 in), 1 November 1986 Nov Dec: 185.0 mm (7.3 in), 6 December 1985 Dec
The wettest day on record for each calendar month at Shimojishima. The most was 322.0 mm (12.7 in) on 16 August 1985.
Record daily precipitation for each month at Shimojishima
MonthRecord daily precipitation (mm)Date
Jan94.0 mm (3.7 in)2 January 1987
Feb114.0 mm (4.5 in)8 February 1985
Mar136.0 mm (5.4 in)15 March 1993
Apr284.0 mm (11.2 in)28 April 1988
May213.0 mm (8.4 in)31 May 1996
Jun248.0 mm (9.8 in)15 June 1979
Jul181.0 mm (7.1 in)3 July 1970
Aug322.0 mm (12.7 in)16 August 1985
Sep236.0 mm (9.3 in)5 September 1966
Oct160.0 mm (6.3 in)9 October 1994
Nov251.0 mm (9.9 in)1 November 1986
Dec185.0 mm (7.3 in)6 December 1985

Period of Record Coverage

1961 to 2000
Days with data per year at Shimojishima 40 years of record at Shimojishima, 1961 to 2000. Every year has data for at least 90 percent of its days. 1961: 361 of 365 days1962: 362 of 365 days1963: 362 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 365 of 365 days1987: 365 of 365 days1988: 366 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 365 of 365 days1992: 366 of 366 days1993: 365 of 365 days1994: 365 of 365 days1995: 365 of 365 days1996: 366 of 366 days1997: 365 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 366 of 366 days19651970197519801985199019952000
40 years of record at Shimojishima, 1961 to 2000. Every year has data for at least 90 percent of its days.
Days with data per year at Shimojishima
YearDays with dataShare of yearComplete
196136199%Yes
196236299%Yes
196336299%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
1968366100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
1983365100%Yes
1984366100%Yes
1985365100%Yes
1986365100%Yes
1987365100%Yes
1988366100%Yes
1989365100%Yes
1990365100%Yes
1991365100%Yes
1992366100%Yes
1993365100%Yes
1994365100%Yes
1995365100%Yes
1996366100%Yes
1997365100%Yes
1998365100%Yes
1999365100%Yes
2000366100%Yes

Latest Records

20
Latest records at Shimojishima
DateStationRecordValueBeat old record byOld record stoodSignificance
20 December 2000Shimojishima, JPdaily high max26.9 C (80.4 F)0.9 C (1.6 F)3 years7 of 100 (Routine)
19 December 2000Shimojishima, JPdaily rain (Tie)83.0 mm (3.3 in)tie2 years1 of 100 (Routine)
17 December 2000Shimojishima, JPdaily high min22.4 C (72.3 F)0.4 C (0.7 F)39 years16 of 100 (Routine)
17 December 2000Shimojishima, JPdaily high max26.2 C (79.2 F)0.9 C (1.6 F)3 years7 of 100 (Routine)
14 December 2000Shimojishima, JPdaily rain51.0 mm (2.0 in)13.0 mm (0.5 in)25 years18 of 100 (Routine)
10 November 2000Shimojishima, JPdaily high min24.0 C (75.2 F)0.5 C (0.9 F)4 years7 of 100 (Routine)
9 November 2000Shimojishima, JPdaily rain59.0 mm (2.3 in)8.0 mm (0.31 in)15 years12 of 100 (Routine)
5 November 2000Shimojishima, JPdaily rain90.0 mm (3.5 in)70.0 mm (2.8 in)25 years46 of 100 (Notable)
30 October 2000Shimojishima, JPdaily rain79.0 mm (3.1 in)36.0 mm (1.4 in)9 years22 of 100 (Routine)
25 October 2000Shimojishima, JPdaily rain122.0 mm (4.8 in)78.0 mm (3.1 in)12 years42 of 100 (Notable)
21 October 2000Shimojishima, JPdaily high min25.4 C (77.7 F)0.2 C (0.4 F)3 years5 of 100 (Routine)
17 October 2000Shimojishima, JPdaily high max30.6 C (87.1 F)0.4 C (0.7 F)17 years11 of 100 (Routine)
7 October 2000Shimojishima, JPdaily high max30.9 C (87.6 F)0.1 C (0.2 F)19 years9 of 100 (Routine)
6 October 2000Shimojishima, JPdaily high max31.4 C (88.5 F)1.0 C (1.8 F)5 years10 of 100 (Routine)
24 September 2000Shimojishima, JPdaily low min22.3 C (72.1 F)0.1 C (0.2 F)20 years10 of 100 (Routine)
18 September 2000Shimojishima, JPdaily low min22.2 C (72.0 F)0.3 C (0.5 F)6 years7 of 100 (Routine)
16 September 2000Shimojishima, JPdaily low min22.4 C (72.3 F)0.5 C (0.9 F)25 years15 of 100 (Routine)
14 September 2000Shimojishima, JPdaily low max25.5 C (77.9 F)1.7 C (3.1 F)35 years26 of 100 (Routine)
14 September 2000Shimojishima, JPdaily low min (Tie)22.2 C (72.0 F)tie25 years2 of 100 (Routine)
13 September 2000Shimojishima, JPdaily low max25.6 C (78.1 F)3.3 C (5.9 F)24 years34 of 100 (Routine)

Climate Trend

40 complete years, 1961 to 2000
Annual mean temperature at Shimojishima as warming stripes, 1961 to 2000 One stripe for each of 40 complete years at Shimojishima, 1961 to 2000. Blue stripes are years cooler than the station's own mean of 23.5 C (74.3 F); red stripes are warmer. The coolest year was 1968, at 22.6 C (72.7 F), and the warmest was 1998, at 25.0 C (77.0 F). The strongest colour marks a difference of 1.6 C (2.9 F). 1961: 23.6 C, +0.1 C from the station mean1962: 23.1 C, -0.4 C from the station mean1963: 22.9 C, -0.6 C from the station mean1964: 23.6 C, +0.1 C from the station mean1965: 23.0 C, -0.5 C from the station mean1966: 23.6 C, +0.1 C from the station mean1967: 23.2 C, -0.3 C from the station mean1968: 22.6 C, -0.9 C from the station mean1969: 23.4 C, -0.2 C from the station mean1970: 23.7 C, +0.2 C from the station mean1971: 23.8 C, +0.3 C from the station mean1972: 23.6 C, +0.1 C from the station mean1973: 23.3 C, -0.2 C from the station mean1974: 23.1 C, -0.4 C from the station mean1975: 23.0 C, -0.5 C from the station mean1976: 22.7 C, -0.8 C from the station mean1977: 23.6 C, +0.1 C from the station mean1978: 23.0 C, -0.5 C from the station mean1979: 23.2 C, -0.3 C from the station mean1980: 23.4 C, -0.1 C from the station mean1981: 23.1 C, -0.5 C from the station mean1982: 23.5 C, 0.0 C from the station mean1983: 23.9 C, +0.4 C from the station mean1984: 23.4 C, -0.1 C from the station mean1985: 23.5 C, 0.0 C from the station mean1986: 23.1 C, -0.4 C from the station mean1987: 24.0 C, +0.5 C from the station mean1988: 23.9 C, +0.4 C from the station mean1989: 23.6 C, 0.0 C from the station mean1990: 23.8 C, +0.3 C from the station mean1991: 24.0 C, +0.5 C from the station mean1992: 23.6 C, +0.1 C from the station mean1993: 23.9 C, +0.4 C from the station mean1994: 23.9 C, +0.4 C from the station mean1995: 23.5 C, 0.0 C from the station mean1996: 23.6 C, +0.1 C from the station mean1997: 23.7 C, +0.2 C from the station mean1998: 25.0 C, +1.5 C from the station mean1999: 24.1 C, +0.6 C from the station mean2000: 23.9 C, +0.4 C from the station mean196119651970197519801985199019952000
One stripe for each of 40 complete years at Shimojishima, 1961 to 2000. Blue stripes are years cooler than the station's own mean of 23.5 C (74.3 F); red stripes are warmer. The coolest year was 1968, at 22.6 C (72.7 F), and the warmest was 1998, at 25.0 C (77.0 F). The strongest colour marks a difference of 1.6 C (2.9 F).
Annual mean temperature at Shimojishima as warming stripes, 1961 to 2000
YearAnnual mean temperatureDifference from the station mean
196123.6 C+0.10 C
196223.1 C-0.43 C
196322.9 C-0.64 C
196423.6 C+0.13 C
196523.0 C-0.48 C
196623.6 C+0.07 C
196723.2 C-0.32 C
196822.6 C-0.91 C
196923.4 C-0.16 C
197023.7 C+0.22 C
197123.8 C+0.26 C
197223.6 C+0.10 C
197323.3 C-0.23 C
197423.1 C-0.43 C
197523.0 C-0.50 C
197622.7 C-0.80 C
197723.6 C+0.06 C
197823.0 C-0.52 C
197923.2 C-0.31 C
198023.4 C-0.15 C
198123.1 C-0.46 C
198223.5 C-0.01 C
198323.9 C+0.39 C
198423.4 C-0.08 C
198523.5 C+0.00 C
198623.1 C-0.38 C
198724.0 C+0.47 C
198823.9 C+0.37 C
198923.6 C+0.04 C
199023.8 C+0.26 C
199124.0 C+0.49 C
199223.6 C+0.07 C
199323.9 C+0.42 C
199423.9 C+0.41 C
199523.5 C+0.00 C
199623.6 C+0.13 C
199723.7 C+0.15 C
199825.0 C+1.50 C
199924.1 C+0.60 C
200023.9 C+0.39 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1961 to 2000. In Fahrenheit: 0.4 F (0.2 to 0.6) per decade. The slope is a straight line fitted to 40 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Shimojishima
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.2 C (0.1 to 0.3) per decade0.4 F (0.2 to 0.6) per decade1961 to 200040Rise
Mean daily maximum0.12 C (0.02 to 0.23) per decade0.22 F (0.03 to 0.41) per decade1961 to 200040Rise
Mean daily minimum0.3 C (0.2 to 0.4) per decade0.6 F (0.4 to 0.8) per decade1961 to 200040Rise

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

1961 to 2000
Yearly extremes at Shimojishima: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)35.3 C (95.5 F)197133.1 C (91.6 F)40
Coldest night (TNn)6.9 C (44.4 F)196710.4 C (50.7 F)40
Wettest day (Rx1day)322.0 mm (12.7 in)1985137.0 mm (5.4 in)40
Wettest five days (Rx5day)512.0 mm (20.2 in)1985250.0 mm (9.8 in)40
Longest dry spell (CDD)31 days197118 days40

Hottest day (TXx)

Hottest day (TXx) at Shimojishima by year The hottest day of the year at Shimojishima, 1961 to 2000. The record is 35.3 C (95.5 F) in 1971, marked on the chart; the median year is 33.1 C (91.6 F). 3132333435361970198019902000Record: 35.3 C (95.5 F) in 1971
The hottest day of the year at Shimojishima, 1961 to 2000. The record is 35.3 C (95.5 F) in 1971, marked on the chart; the median year is 33.1 C (91.6 F).
Hottest day (TXx) at Shimojishima by year
YearHottest day (TXx)
196132.4 C (90.3 F)
196232.5 C (90.5 F)
196334.2 C (93.6 F)
196432.7 C (90.9 F)
196533.2 C (91.8 F)
196633.2 C (91.8 F)
196733.1 C (91.6 F)
196833.2 C (91.8 F)
196932.7 C (90.9 F)
197033.0 C (91.4 F)
197135.3 C (95.5 F)
197234.6 C (94.3 F)
197333.4 C (92.1 F)
197433.1 C (91.6 F)
197532.2 C (90.0 F)
197631.9 C (89.4 F)
197732.6 C (90.7 F)
197832.6 C (90.7 F)
197934.2 C (93.6 F)
198033.7 C (92.7 F)
198132.8 C (91.0 F)
198233.1 C (91.6 F)
198334.2 C (93.6 F)
198434.1 C (93.4 F)
198532.7 C (90.9 F)
198632.8 C (91.0 F)
198732.6 C (90.7 F)
198833.8 C (92.8 F)
198933.3 C (91.9 F)
199033.2 C (91.8 F)
199133.1 C (91.6 F)
199233.1 C (91.6 F)
199333.8 C (92.8 F)
199433.0 C (91.4 F)
199532.4 C (90.3 F)
199633.8 C (92.8 F)
199732.5 C (90.5 F)
199834.2 C (93.6 F)
199933.0 C (91.4 F)
200033.1 C (91.6 F)

Coldest night (TNn)

Coldest night (TNn) at Shimojishima by year The coldest night of the year at Shimojishima, 1961 to 2000. The record is 6.9 C (44.4 F) in 1967, marked on the chart; the median year is 10.4 C (50.7 F). 681012141970198019902000Record: 6.9 C (44.4 F) in 1967
The coldest night of the year at Shimojishima, 1961 to 2000. The record is 6.9 C (44.4 F) in 1967, marked on the chart; the median year is 10.4 C (50.7 F).
Coldest night (TNn) at Shimojishima by year
YearColdest night (TNn)
196110.2 C (50.4 F)
19629.4 C (48.9 F)
19637.5 C (45.5 F)
196411.1 C (52.0 F)
196510.1 C (50.2 F)
196612.0 C (53.6 F)
19676.9 C (44.4 F)
19689.2 C (48.6 F)
19699.5 C (49.1 F)
197010.0 C (50.0 F)
197110.3 C (50.5 F)
197210.3 C (50.5 F)
197310.3 C (50.5 F)
19749.3 C (48.7 F)
197511.0 C (51.8 F)
197610.5 C (50.9 F)
19777.3 C (45.1 F)
19788.9 C (48.0 F)
197911.2 C (52.2 F)
198010.5 C (50.9 F)
19819.9 C (49.8 F)
198210.3 C (50.5 F)
198311.2 C (52.2 F)
19849.4 C (48.9 F)
198511.7 C (53.1 F)
19869.2 C (48.6 F)
19878.7 C (47.7 F)
198812.2 C (54.0 F)
198911.3 C (52.3 F)
199012.1 C (53.8 F)
199111.0 C (51.8 F)
199211.2 C (52.2 F)
19939.6 C (49.3 F)
199412.0 C (53.6 F)
199510.9 C (51.6 F)
199610.6 C (51.1 F)
199712.6 C (54.7 F)
199811.2 C (52.2 F)
199910.6 C (51.1 F)
200011.3 C (52.3 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Shimojishima by year The wettest day of the year at Shimojishima, 1961 to 2000. The record is 322.0 mm (12.7 in) in 1985, marked on the chart; the median year is 137.0 mm (5.4 in). 01002003004001970198019902000Record: 322.0 mm (12.7 in) in 1985
The wettest day of the year at Shimojishima, 1961 to 2000. The record is 322.0 mm (12.7 in) in 1985, marked on the chart; the median year is 137.0 mm (5.4 in).
Wettest day (Rx1day) at Shimojishima by year
YearWettest day (Rx1day)
196193.0 mm (3.7 in)
1962128.0 mm (5.0 in)
1963207.0 mm (8.1 in)
1964118.0 mm (4.6 in)
1965107.0 mm (4.2 in)
1966236.0 mm (9.3 in)
1967176.0 mm (6.9 in)
1968174.0 mm (6.9 in)
1969152.0 mm (6.0 in)
1970211.0 mm (8.3 in)
1971103.0 mm (4.1 in)
1972160.0 mm (6.3 in)
1973132.0 mm (5.2 in)
1974116.0 mm (4.6 in)
197598.0 mm (3.9 in)
197666.0 mm (2.6 in)
1977121.0 mm (4.8 in)
1978149.0 mm (5.9 in)
1979248.0 mm (9.8 in)
1980154.0 mm (6.1 in)
1981191.0 mm (7.5 in)
1982100.0 mm (3.9 in)
1983129.0 mm (5.1 in)
1984109.0 mm (4.3 in)
1985322.0 mm (12.7 in)
1986251.0 mm (9.9 in)
1987123.0 mm (4.8 in)
1988284.0 mm (11.2 in)
1989101.0 mm (4.0 in)
1990125.0 mm (4.9 in)
1991174.0 mm (6.9 in)
1992174.0 mm (6.9 in)
1993143.0 mm (5.6 in)
1994161.0 mm (6.3 in)
199591.0 mm (3.6 in)
1996213.0 mm (8.4 in)
1997100.0 mm (3.9 in)
1998142.0 mm (5.6 in)
1999123.0 mm (4.8 in)
2000122.0 mm (4.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Shimojishima by year The wettest five days of the year at Shimojishima, 1961 to 2000. The record is 512.0 mm (20.2 in) in 1985, marked on the chart; the median year is 250.0 mm (9.8 in). 1002003004005006001970198019902000Record: 512.0 mm (20.2 in) in 1985
The wettest five days of the year at Shimojishima, 1961 to 2000. The record is 512.0 mm (20.2 in) in 1985, marked on the chart; the median year is 250.0 mm (9.8 in).
Wettest five days (Rx5day) at Shimojishima by year
YearWettest five days (Rx5day)
1961179.0 mm (7.0 in)
1962297.0 mm (11.7 in)
1963308.0 mm (12.1 in)
1964170.0 mm (6.7 in)
1965250.0 mm (9.8 in)
1966364.0 mm (14.3 in)
1967200.0 mm (7.9 in)
1968292.0 mm (11.5 in)
1969256.0 mm (10.1 in)
1970330.0 mm (13.0 in)
1971157.0 mm (6.2 in)
1972272.0 mm (10.7 in)
1973256.0 mm (10.1 in)
1974149.0 mm (5.9 in)
1975259.0 mm (10.2 in)
1976174.0 mm (6.9 in)
1977214.0 mm (8.4 in)
1978339.0 mm (13.3 in)
1979381.0 mm (15.0 in)
1980229.0 mm (9.0 in)
1981357.0 mm (14.1 in)
1982161.0 mm (6.3 in)
1983225.0 mm (8.9 in)
1984183.0 mm (7.2 in)
1985512.0 mm (20.2 in)
1986310.0 mm (12.2 in)
1987197.0 mm (7.8 in)
1988447.0 mm (17.6 in)
1989221.0 mm (8.7 in)
1990250.0 mm (9.8 in)
1991275.0 mm (10.8 in)
1992294.0 mm (11.6 in)
1993248.0 mm (9.8 in)
1994233.0 mm (9.2 in)
1995216.0 mm (8.5 in)
1996419.0 mm (16.5 in)
1997161.0 mm (6.3 in)
1998282.0 mm (11.1 in)
1999211.0 mm (8.3 in)
2000206.0 mm (8.1 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Shimojishima by year The longest dry spell of the year at Shimojishima, 1961 to 2000. The record is 31 days in 1971, marked on the chart; the median year is 18 days. 102030401970198019902000Record: 31 days in 1971
The longest dry spell of the year at Shimojishima, 1961 to 2000. The record is 31 days in 1971, marked on the chart; the median year is 18 days.
Longest dry spell (CDD) at Shimojishima by year
YearLongest dry spell (CDD)
196111 days
196213 days
196315 days
196410 days
196512 days
196620 days
196718 days
196821 days
196918 days
197011 days
197131 days
197219 days
197317 days
197415 days
197513 days
197624 days
197720 days
197813 days
197914 days
198018 days
198115 days
198219 days
198322 days
198413 days
198523 days
198612 days
198721 days
198819 days
198923 days
199014 days
199119 days
199224 days
199319 days
199426 days
199513 days
199615 days
199718 days
199817 days
199919 days
200031 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

40 years, 1961 to 2000

A day with at least 139.7 mm (5.5 in) of rain is expected about once in 2 years. A day with at least 369.6 mm (14.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Shimojishima: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years139.7 mm (5.5 in)
5 years189.8 mm (7.5 in)
10 years227.1 mm (8.9 in)
25 years279.6 mm (11.0 in)
50 years322.8 mm (12.7 in)Longer than the 40 years of record
100 years369.6 mm (14.6 in)Longer than the 40 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, 40 years of values from 1961 to 2000.

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: 322.0 mm (12.7 in) in 1985; 284.0 mm (11.2 in) in 1988; 251.0 mm (9.9 in) in 1986.

Download the Data

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