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Built 2026-10-19 (19 October 2026)

Ishigaki Threshold Days by Year (JAM00047918)

10 fixed thresholds counted per year at Ishigaki (JAM00047918): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ishigaki Thresholds

  • Ishigaki: days with a maximum temperature at or above 30 C (86 F) in 31 years, most in 1977 with 140.
  • Ishigaki: days with a maximum temperature at or above 90 F (32.2 C) in 31 years, most in 2001 with 61.
  • Ishigaki: days with 10 mm (0.39 in) or more of precipitation in 26 years, most in 1973 with 54.
  • Ishigaki: days with 25 mm (0.98 in) or more of precipitation in 26 years, most in 1974 with 25.
  • 10 fixed thresholds have at least one qualifying day at Ishigaki.
31 years with a qualifying day
Days at or above 30 C (86 F) per year at Ishigaki Days per year at Ishigaki with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 140 in 1977. 0501001501973: 1161974: 1281975: 1341976: 1191977: 1401978: 1251981: 1001989: 1081990: 921991: 1271992: 921993: 1191994: 931995: 1051996: 1101997: 881998: 1331999: 1112000: 1172001: 1152002: 1202003: 1142004: 1042005: 1202006: 1192007: 1242008: 1302009: 1092010: 1122011: 1162012: 10719731977199019941998200220062010
Days per year at Ishigaki with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 140 in 1977.
Days at or above 30 C (86 F) per year at Ishigaki
YearDaysDecade average
1973116127
1974128127
1975134127
1976119127
1977140127
1978125127
1981100104
1989108104
199092107
1991127107
199292107
1993119107
199493107
1995105107
1996110107
199788107
1998133107
1999111107
2000117117.2
2001115117.2
2002120117.2
2003114117.2
2004104117.2
2005120117.2
2006119117.2
2007124117.2
2008130117.2
2009109117.2
2010112111.7
2011116111.7
2012107111.7
First to last qualifying date each year at Ishigaki For each year, a bar from the first to the last day at Ishigaki meeting 30 C (86 F). 1973: 24 April 1973 to 13 October 19731974: 15 May 1974 to 8 November 19741975: 20 April 1975 to 29 October 19751976: 27 April 1976 to 13 October 19761977: 7 April 1977 to 27 October 19771978: 9 May 1978 to 27 October 19781981: 13 June 1981 to 19 October 19811989: 21 May 1989 to 11 October 19891990: 3 June 1990 to 11 October 19901991: 29 April 1991 to 4 October 19911992: 15 June 1992 to 12 October 19921993: 19 May 1993 to 18 October 19931994: 15 May 1994 to 17 October 19941995: 30 May 1995 to 15 October 19951996: 9 May 1996 to 27 September 19961997: 12 May 1997 to 4 October 19971998: 2 May 1998 to 15 November 19981999: 19 May 1999 to 15 October 19992000: 16 May 2000 to 29 October 20002001: 7 May 2001 to 21 October 20012002: 2 May 2002 to 18 October 20022003: 6 May 2003 to 13 October 20032004: 10 May 2004 to 30 September 20042005: 8 May 2005 to 6 November 20052006: 8 May 2006 to 29 October 20062007: 17 May 2007 to 5 November 20072008: 25 May 2008 to 8 November 20082009: 11 May 2009 to 23 October 20092010: 16 May 2010 to 25 October 20102011: 8 May 2011 to 5 November 20112012: 2 May 2012 to 27 September 201219731977199019941998200220062010JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ishigaki meeting 30 C (86 F).
First to last qualifying date each year at Ishigaki
YearFirst dateLast date
19731973-04-241973-10-13
19741974-05-151974-11-08
19751975-04-201975-10-29
19761976-04-271976-10-13
19771977-04-071977-10-27
19781978-05-091978-10-27
19811981-06-131981-10-19
19891989-05-211989-10-11
19901990-06-031990-10-11
19911991-04-291991-10-04
19921992-06-151992-10-12
19931993-05-191993-10-18
19941994-05-151994-10-17
19951995-05-301995-10-15
19961996-05-091996-09-27
19971997-05-121997-10-04
19981998-05-021998-11-15
19991999-05-191999-10-15
20002000-05-162000-10-29
20012001-05-072001-10-21
20022002-05-022002-10-18
20032003-05-062003-10-13
20042004-05-102004-09-30
20052005-05-082005-11-06
20062006-05-082006-10-29
20072007-05-172007-11-05
20082008-05-252008-11-08
20092009-05-112009-10-23
20102010-05-162010-10-25
20112011-05-082011-11-05
20122012-05-022012-09-27

Every Fixed Threshold

Fixed thresholds at Ishigaki
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days311401977107
35 C (95 F): Days3219811
90 F (32.2 C): Days3161200136
20 C (68 F): Tropical nights (min10n/a28
25 C (77 F): Days with min10n/a8
10 mm (0.39 in): Days with 10 mm or more rain2654197320
25 mm (0.98 in): Days with 25 mm or more rain2625197410
50 mm (1.97 in): Days with 50 mm or more rain261619746
100 mm (3.94 in): Days with 100 mm or more rain25620052
200 mm (7.87 in): Days with 200 mm or more rain14320101

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1973.

Download the Data

  • Data for Ishigaki 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). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).