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Built 2026-10-19 (19 October 2026)

Rio Hondo Threshold Days by Year (MXN00020277)

11 fixed thresholds counted per year at Rio Hondo (MXN00020277): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rio Hondo Thresholds

  • Rio Hondo: days with 10 mm (0.39 in) or more of precipitation in 35 years, most in 2010 with 31.
  • Rio Hondo: days with 25 mm (0.98 in) or more of precipitation in 35 years, most in 2011 with 20.
  • Rio Hondo: days with a maximum temperature at or above 30 C (86 F) in 34 years, most in 1992 with 366.
  • Rio Hondo: days with a maximum temperature at or above 35 C (95 F) in 34 years, most in 2006 with 232.
  • 11 fixed thresholds have at least one qualifying day at Rio Hondo.
34 years with a qualifying day
Days at or above 30 C (86 F) per year at Rio Hondo Days per year at Rio Hondo with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 366 in 1992. 01002003004001977: 3241978: 3181979: 2971980: 3121981: 2991982: 3121983: 3211984: 3171985: 3561986: 3401987: 3541988: 3571989: 3461990: 3571991: 3641992: 3661994: 3651995: 3611996: 3611997: 3601998: 3481999: 3102000: 3242001: 3592002: 3482003: 3232004: 3522005: 3652006: 3492007: 3502008: 3442009: 3512010: 3502011: 355197719811985198919941998200220062010
Days per year at Rio Hondo with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 366 in 1992.
Days at or above 30 C (86 F) per year at Rio Hondo
YearDaysDecade average
1977324313
1978318313
1979297313
1980312331.4
1981299331.4
1982312331.4
1983321331.4
1984317331.4
1985356331.4
1986340331.4
1987354331.4
1988357331.4
1989346331.4
1990357354.7
1991364354.7
1992366354.7
1994365354.7
1995361354.7
1996361354.7
1997360354.7
1998348354.7
1999310354.7
2000324346.5
2001359346.5
2002348346.5
2003323346.5
2004352346.5
2005365346.5
2006349346.5
2007350346.5
2008344346.5
2009351346.5
2010350352.5
2011355352.5
First to last qualifying date each year at Rio Hondo For each year, a bar from the first to the last day at Rio Hondo meeting 30 C (86 F). 1977: 6 January 1977 to 31 December 19771978: 1 January 1978 to 31 December 19781979: 1 January 1979 to 31 December 19791980: 1 January 1980 to 29 December 19801981: 8 January 1981 to 31 December 19811982: 1 January 1982 to 30 December 19821983: 8 January 1983 to 28 December 19831984: 6 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 19921994: 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 31 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 31 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 20111977198219871992199820032008JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Rio Hondo meeting 30 C (86 F).
First to last qualifying date each year at Rio Hondo
YearFirst dateLast date
19771977-01-061977-12-31
19781978-01-011978-12-31
19791979-01-011979-12-31
19801980-01-011980-12-29
19811981-01-081981-12-31
19821982-01-011982-12-30
19831983-01-081983-12-28
19841984-01-061984-12-31
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
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
20002000-01-012000-12-31
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
20062006-01-012006-12-31
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

Every Fixed Threshold

Fixed thresholds at Rio Hondo
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days343661992355
35 C (95 F): Days342322006227
40 C (104 F): Days101320109
90 F (32.2 C): Days343591994310
100 F (37.8 C): Days3160201160
20 C (68 F): Tropical nights (min342621983210
25 C (77 F): Days with min3064198220
10 mm (0.39 in): Days with 10 mm or more rain3531201026
25 mm (0.98 in): Days with 25 mm or more rain3520201120
50 mm (1.97 in): Days with 50 mm or more rain33919995
100 mm (3.94 in): Days with 100 mm or more rain9219812

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1977.

Download the Data

  • Data for Rio Hondo 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).