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Built 2026-10-19 (19 October 2026)

Penang Threshold Days by Year (FJN00078311)

5 fixed thresholds counted per year at Penang (FJN00078311): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Penang Thresholds

  • Penang: days with 10 mm (0.39 in) or more of precipitation in 41 years, most in 1999 with 81.
  • Penang: days with 25 mm (0.98 in) or more of precipitation in 41 years, most in 2000 with 54.
  • Penang: days with 50 mm (1.97 in) or more of precipitation in 41 years, most in 2000 with 24.
  • Penang: days with 100 mm (3.94 in) or more of precipitation in 39 years, most in 2009 with 9.
  • 5 fixed thresholds have at least one qualifying day at Penang.
41 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Penang Days per year at Penang with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 81 in 1999. 02550751001980: 461981: 611984: 511985: 491986: 521987: 431988: 561989: 581990: 521991: 431992: 451993: 441994: 551995: 561996: 571997: 561998: 381999: 812000: 812001: 582002: 522003: 432004: 452005: 432006: 512007: 682008: 722009: 562010: 422011: 802012: 622013: 592014: 462015: 372016: 422017: 382018: 502019: 502020: 572021: 642022: 72198019871992199720022007201220172022
Days per year at Penang with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 81 in 1999.
Days with 10 mm (0.39 in) or more of precipitation per year at Penang
YearDaysDecade average
19804652
19816152
19845152
19854952
19865252
19874352
19885652
19895852
19905252.7
19914352.7
19924552.7
19934452.7
19945552.7
19955652.7
19965752.7
19975652.7
19983852.7
19998152.7
20008156.9
20015856.9
20025256.9
20034356.9
20044556.9
20054356.9
20065156.9
20076856.9
20087256.9
20095656.9
20104250.6
20118050.6
20126250.6
20135950.6
20144650.6
20153750.6
20164250.6
20173850.6
20185050.6
20195050.6
20205764.3
20216464.3
20227264.3
First to last qualifying date each year at Penang For each year, a bar from the first to the last day at Penang meeting 10 mm (0.39 in). 1980: 1 January 1980 to 28 December 19801981: 4 January 1981 to 28 December 19811984: 2 January 1984 to 31 December 19841985: 16 January 1985 to 17 December 19851986: 13 January 1986 to 29 December 19861987: 7 February 1987 to 31 December 19871988: 5 January 1988 to 31 December 19881989: 4 January 1989 to 22 December 19891990: 4 January 1990 to 29 December 19901991: 7 January 1991 to 28 December 19911992: 7 January 1992 to 31 December 19921993: 1 January 1993 to 31 December 19931994: 1 January 1994 to 30 December 19941995: 12 January 1995 to 29 December 19951996: 2 January 1996 to 27 December 19961997: 3 January 1997 to 16 December 19971998: 5 January 1998 to 31 December 19981999: 1 January 1999 to 25 December 19992000: 3 January 2000 to 22 December 20002001: 3 January 2001 to 22 December 20012002: 5 January 2002 to 31 December 20022003: 13 January 2003 to 23 December 20032004: 27 January 2004 to 11 December 20042005: 2 January 2005 to 28 December 20052006: 7 January 2006 to 24 December 20062007: 2 January 2007 to 24 December 20072008: 2 January 2008 to 31 December 20082009: 6 January 2009 to 14 December 20092010: 1 January 2010 to 31 December 20102011: 5 January 2011 to 27 December 20112012: 4 January 2012 to 30 December 20122013: 3 January 2013 to 20 December 20132014: 15 January 2014 to 21 December 20142015: 5 January 2015 to 31 December 20152016: 3 January 2016 to 16 December 20162017: 2 January 2017 to 23 December 20172018: 13 January 2018 to 8 December 20182019: 4 January 2019 to 28 December 20192020: 15 January 2020 to 27 December 20202021: 2 January 2021 to 31 December 20212022: 1 January 2022 to 31 December 20221980198819942000200620122018JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Penang meeting 10 mm (0.39 in).
First to last qualifying date each year at Penang
YearFirst dateLast date
19801980-01-011980-12-28
19811981-01-041981-12-28
19841984-01-021984-12-31
19851985-01-161985-12-17
19861986-01-131986-12-29
19871987-02-071987-12-31
19881988-01-051988-12-31
19891989-01-041989-12-22
19901990-01-041990-12-29
19911991-01-071991-12-28
19921992-01-071992-12-31
19931993-01-011993-12-31
19941994-01-011994-12-30
19951995-01-121995-12-29
19961996-01-021996-12-27
19971997-01-031997-12-16
19981998-01-051998-12-31
19991999-01-011999-12-25
20002000-01-032000-12-22
20012001-01-032001-12-22
20022002-01-052002-12-31
20032003-01-132003-12-23
20042004-01-272004-12-11
20052005-01-022005-12-28
20062006-01-072006-12-24
20072007-01-022007-12-24
20082008-01-022008-12-31
20092009-01-062009-12-14
20102010-01-012010-12-31
20112011-01-052011-12-27
20122012-01-042012-12-30
20132013-01-032013-12-20
20142014-01-152014-12-21
20152015-01-052015-12-31
20162016-01-032016-12-16
20172017-01-022017-12-23
20182018-01-132018-12-08
20192019-01-042019-12-28
20202020-01-152020-12-27
20212021-01-022021-12-31
20222022-01-012022-12-31

Every Fixed Threshold

Fixed thresholds at Penang
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4181199972
25 mm (0.98 in): Days with 25 mm or more rain4154200038
50 mm (1.97 in): Days with 50 mm or more rain4124200016
100 mm (3.94 in): Days with 100 mm or more rain39920091
200 mm (7.87 in): Days with 200 mm or more rain15520092

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1980.

Download the Data

  • Data for Penang 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).