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Built 2026-10-17 (17 October 2026)

Wave Hill Threshold Days by Year

15 fixed thresholds counted per year at Wave Hill (ASN00014840): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Wave Hill Thresholds

  • Wave Hill: days with 10 mm (0.39 in) or more of precipitation in 50 years, most in 2024 with 31.
  • Wave Hill: days with 25 mm (0.98 in) or more of precipitation in 50 years, most in 2024 with 19.
  • Wave Hill: days with 50 mm (1.97 in) or more of precipitation in 47 years, most in 2024 with 9.
  • Wave Hill: days with a maximum temperature at or above 30 C (86 F) in 40 years, most in 1998 with 326.
  • 15 fixed thresholds have at least one qualifying day at Wave Hill.
40 years with a qualifying day
Days at or above 30 C (86 F) per year at Wave Hill Days per year at Wave Hill with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 326 in 1998. 01002003004001974: 2721975: 2611976: 2331977: 2671978: 2741979: 2801980: 3111981: 2941982: 2671983: 2651984: 3051985: 2941986: 3021987: 2911988: 3211989: 2911990: 2981991: 3091992: 3131993: 3051994: 2861995: 3011996: 3041997: 2951998: 3261999: 3242000: 2812001: 2922002: 3042003: 2972004: 3062005: 3102006: 2472007: 2852008: 2942009: 3072010: 2712011: 2372017: 2972020: 2791974197819821986199019941998200220062010
Days per year at Wave Hill with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 326 in 1998.
Days at or above 30 C (86 F) per year at Wave Hill
YearDaysDecade average
1974272264.5
1975261264.5
1976233264.5
1977267264.5
1978274264.5
1979280264.5
1980311294.1
1981294294.1
1982267294.1
1983265294.1
1984305294.1
1985294294.1
1986302294.1
1987291294.1
1988321294.1
1989291294.1
1990298306.1
1991309306.1
1992313306.1
1993305306.1
1994286306.1
1995301306.1
1996304306.1
1997295306.1
1998326306.1
1999324306.1
2000281292.3
2001292292.3
2002304292.3
2003297292.3
2004306292.3
2005310292.3
2006247292.3
2007285292.3
2008294292.3
2009307292.3
2010271268.3
2011237268.3
2017297268.3
2020279279
First to last qualifying date each year at Wave Hill For each year, a bar from the first to the last day at Wave Hill meeting 30 C (86 F). 1974: 1 January 1974 to 31 December 19741975: 1 January 1975 to 31 December 19751976: 4 January 1976 to 31 December 19761977: 1 January 1977 to 31 December 19771978: 1 January 1978 to 31 December 19781979: 1 January 1979 to 31 December 19791980: 1 January 1980 to 31 December 19801981: 1 January 1981 to 31 December 19811982: 1 January 1982 to 31 December 19821983: 1 January 1983 to 31 December 19831984: 1 January 1984 to 31 December 19841985: 1 January 1985 to 31 December 19851986: 1 January 1986 to 31 December 19861987: 1 January 1987 to 31 December 19871988: 1 January 1988 to 31 December 19881989: 1 January 1989 to 31 December 19891990: 1 January 1990 to 31 December 19901991: 1 January 1991 to 31 December 19911992: 1 January 1992 to 31 December 19921993: 1 January 1993 to 31 December 19931994: 1 January 1994 to 31 December 19941995: 1 January 1995 to 31 December 19951996: 1 January 1996 to 31 December 19961997: 1 January 1997 to 31 December 19971998: 1 January 1998 to 31 December 19981999: 1 January 1999 to 31 December 19992000: 1 January 2000 to 30 December 20002001: 1 January 2001 to 31 December 20012002: 1 January 2002 to 31 December 20022003: 1 January 2003 to 31 December 20032004: 1 January 2004 to 31 December 20042005: 1 January 2005 to 31 December 20052006: 1 January 2006 to 30 December 20062007: 1 January 2007 to 31 December 20072008: 1 January 2008 to 31 December 20082009: 1 January 2009 to 31 December 20092010: 1 January 2010 to 31 December 20102011: 1 January 2011 to 31 December 20112017: 2 January 2017 to 31 December 20172020: 21 January 2020 to 31 December 202019741979198419891994199920042009JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Wave Hill meeting 30 C (86 F).
First to last qualifying date each year at Wave Hill
YearFirst dateLast date
19741974-01-011974-12-31
19751975-01-011975-12-31
19761976-01-041976-12-31
19771977-01-011977-12-31
19781978-01-011978-12-31
19791979-01-011979-12-31
19801980-01-011980-12-31
19811981-01-011981-12-31
19821982-01-011982-12-31
19831983-01-011983-12-31
19841984-01-011984-12-31
19851985-01-011985-12-31
19861986-01-011986-12-31
19871987-01-011987-12-31
19881988-01-011988-12-31
19891989-01-011989-12-31
19901990-01-011990-12-31
19911991-01-011991-12-31
19921992-01-011992-12-31
19931993-01-011993-12-31
19941994-01-011994-12-31
19951995-01-011995-12-31
19961996-01-011996-12-31
19971997-01-011997-12-31
19981998-01-011998-12-31
19991999-01-011999-12-31
20002000-01-012000-12-30
20012001-01-012001-12-31
20022002-01-012002-12-31
20032003-01-012003-12-31
20042004-01-012004-12-31
20052005-01-012005-12-31
20062006-01-012006-12-30
20072007-01-012007-12-31
20082008-01-012008-12-31
20092009-01-012009-12-31
20102010-01-012010-12-31
20112011-01-012011-12-31
20172017-01-022017-12-31
20202020-01-212020-12-31

Every Fixed Threshold

Fixed thresholds at Wave Hill
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days403261998279
35 C (95 F): Days402291992196
40 C (104 F): Days4083198945
45 C (113 F): Days5220072
90 F (32.2 C): Days402911998236
100 F (37.8 C): Days401691992110
110 F (43.3 C): Days211119905
0 C (32 F): Frost days (min1120001
20 C (68 F): Tropical nights (min402321988187
25 C (77 F): Days with min40105199279
10 mm (0.39 in): Days with 10 mm or more rain5031202412
25 mm (0.98 in): Days with 25 mm or more rain501920247
50 mm (1.97 in): Days with 50 mm or more rain47920241
100 mm (3.94 in): Days with 100 mm or more rain11219791
200 mm (7.87 in): Days with 200 mm or more rain1119891

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1974.

Download the Data

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

Data as of . Last revised (2026-10-16).