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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Rancho Santa Rosa Threshold Days by Year (MXN00030345)

15 fixed thresholds counted per year at Rancho Santa Rosa (MXN00030345): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rancho Santa Rosa Thresholds

  • Rancho Santa Rosa: days with a maximum temperature at or above 30 C (86 F) in 26 years, most in 2000 with 216.
  • Rancho Santa Rosa: days with a maximum temperature at or above 35 C (95 F) in 26 years, most in 2003 with 99.
  • Rancho Santa Rosa: days with a maximum temperature at or above 90 F (32.2 C) in 26 years, most in 2003 with 140.
  • Rancho Santa Rosa: nights with a minimum temperature at or above 20 C (68 F) in 26 years, most in 2003 with 226.
  • 15 fixed thresholds have at least one qualifying day at Rancho Santa Rosa.
26 years with a qualifying day
Days at or above 30 C (86 F) per year at Rancho Santa Rosa Days per year at Rancho Santa Rosa with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 216 in 2000. 01002003001979: 1871980: 1901981: 1651982: 1951983: 1871984: 1591985: 1981986: 1991989: 1781990: 1561991: 1821992: 1351993: 1761994: 1771997: 1801998: 2081999: 1452000: 2162002: 2042003: 1892004: 1822005: 1722006: 2032007: 1672008: 1532011: 142197919821985199019931998200220052008
Days per year at Rancho Santa Rosa with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 216 in 2000.
Days at or above 30 C (86 F) per year at Rancho Santa Rosa
YearDaysDecade average
1979187187
1980190183.9
1981165183.9
1982195183.9
1983187183.9
1984159183.9
1985198183.9
1986199183.9
1989178183.9
1990156169.9
1991182169.9
1992135169.9
1993176169.9
1994177169.9
1997180169.9
1998208169.9
1999145169.9
2000216185.8
2002204185.8
2003189185.8
2004182185.8
2005172185.8
2006203185.8
2007167185.8
2008153185.8
2011142142
First to last qualifying date each year at Rancho Santa Rosa For each year, a bar from the first to the last day at Rancho Santa Rosa meeting 30 C (86 F). 1979: 17 February 1979 to 22 December 19791980: 22 February 1980 to 15 November 19801981: 10 February 1981 to 30 November 19811982: 3 January 1982 to 24 December 19821983: 9 February 1983 to 28 December 19831984: 26 February 1984 to 14 December 19841985: 31 January 1985 to 11 December 19851986: 4 February 1986 to 4 November 19861989: 3 February 1989 to 8 November 19891990: 2 February 1990 to 21 October 19901991: 18 February 1991 to 31 October 19911992: 9 March 1992 to 1 November 19921993: 21 February 1993 to 5 November 19931994: 9 February 1994 to 20 November 19941997: 5 January 1997 to 8 December 19971998: 22 January 1998 to 10 November 19981999: 22 January 1999 to 17 October 19992000: 14 February 2000 to 12 November 20002002: 24 January 2002 to 29 October 20022003: 6 February 2003 to 17 October 20032004: 20 February 2004 to 22 December 20042005: 13 February 2005 to 22 October 20052006: 25 February 2006 to 10 November 20062007: 14 January 2007 to 22 October 20072008: 29 January 2008 to 9 December 20082011: 1 January 2011 to 18 October 20111979198319891993199920042008JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Rancho Santa Rosa meeting 30 C (86 F).
First to last qualifying date each year at Rancho Santa Rosa
YearFirst dateLast date
19791979-02-171979-12-22
19801980-02-221980-11-15
19811981-02-101981-11-30
19821982-01-031982-12-24
19831983-02-091983-12-28
19841984-02-261984-12-14
19851985-01-311985-12-11
19861986-02-041986-11-04
19891989-02-031989-11-08
19901990-02-021990-10-21
19911991-02-181991-10-31
19921992-03-091992-11-01
19931993-02-211993-11-05
19941994-02-091994-11-20
19971997-01-051997-12-08
19981998-01-221998-11-10
19991999-01-221999-10-17
20002000-02-142000-11-12
20022002-01-242002-10-29
20032003-02-062003-10-17
20042004-02-202004-12-22
20052005-02-132005-10-22
20062006-02-252006-11-10
20072007-01-142007-10-22
20082008-01-292008-12-09
20112011-01-012011-10-18

Every Fixed Threshold

Fixed thresholds at Rancho Santa Rosa
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days262162000142
35 C (95 F): Days2699200339
40 C (104 F): Days181619985
45 C (113 F): Days2219842
90 F (32.2 C): Days26140200375
100 F (37.8 C): Days243819986
110 F (43.3 C): Days5319981
0 C (32 F): Frost days (min1219832
20 C (68 F): Tropical nights (min262262003226
25 C (77 F): Days with min2625201125
10 mm (0.39 in): Days with 10 mm or more rain2550199222
25 mm (0.98 in): Days with 25 mm or more rain2521199213
50 mm (1.97 in): Days with 50 mm or more rain241020074
100 mm (3.94 in): Days with 100 mm or more rain14319933
200 mm (7.87 in): Days with 200 mm or more rain2119901

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1979.

Download the Data

  • Data for Rancho Santa Rosa 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).