Built 2026-10-19 (19 October 2026)

La Rosita Threshold Days by Year (MXN00005058)

13 fixed thresholds counted per year at La Rosita (MXN00005058): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for La Rosita Thresholds

  • La Rosita: days with 10 mm (0.39 in) or more of precipitation in 20 years, most in 2002 with 12.
  • La Rosita: days with a maximum temperature at or above 30 C (86 F) in 17 years, most in 1982 with 207.
  • La Rosita: days with a maximum temperature at or above 35 C (95 F) in 17 years, most in 1983 with 94.
  • La Rosita: days with a maximum temperature at or above 90 F (32.2 C) in 17 years, most in 1982 with 150.
  • 13 fixed thresholds have at least one qualifying day at La Rosita.
17 years with a qualifying day
Days at or above 30 C (86 F) per year at La Rosita Days per year at La Rosita with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 207 in 1982. 01002003001974: 1381975: 1411976: 1351979: 1761981: 1631982: 2071983: 1831985: 1601997: 1621998: 1601999: 1762000: 1662001: 1812002: 1822004: 1262005: 1722006: 171197419761981198319971999200120042006
Days per year at La Rosita with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 207 in 1982.
Days at or above 30 C (86 F) per year at La Rosita
YearDaysDecade average
1974138147.5
1975141147.5
1976135147.5
1979176147.5
1981163178.3
1982207178.3
1983183178.3
1985160178.3
1997162166
1998160166
1999176166
2000166166.3
2001181166.3
2002182166.3
2004126166.3
2005172166.3
2006171166.3
First to last qualifying date each year at La Rosita For each year, a bar from the first to the last day at La Rosita meeting 30 C (86 F). 1974: 9 January 1974 to 3 November 19741975: 6 March 1975 to 12 November 19751976: 10 February 1976 to 12 October 19761979: 15 February 1979 to 22 November 19791981: 1 April 1981 to 19 November 19811982: 23 February 1982 to 22 November 19821983: 2 March 1983 to 14 November 19831985: 2 March 1985 to 18 November 19851997: 4 January 1997 to 21 October 19971998: 24 February 1998 to 9 November 19981999: 20 February 1999 to 29 October 19992000: 11 February 2000 to 28 October 20002001: 5 March 2001 to 2 November 20012002: 29 January 2002 to 10 November 20022004: 23 March 2004 to 30 October 20042005: 30 March 2005 to 13 November 20052006: 6 February 2006 to 27 November 2006197419791983199820012005JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at La Rosita meeting 30 C (86 F).
First to last qualifying date each year at La Rosita
YearFirst dateLast date
19741974-01-091974-11-03
19751975-03-061975-11-12
19761976-02-101976-10-12
19791979-02-151979-11-22
19811981-04-011981-11-19
19821982-02-231982-11-22
19831983-03-021983-11-14
19851985-03-021985-11-18
19971997-01-041997-10-21
19981998-02-241998-11-09
19991999-02-201999-10-29
20002000-02-112000-10-28
20012001-03-052001-11-02
20022002-01-292002-11-10
20042004-03-232004-10-30
20052005-03-302005-11-13
20062006-02-062006-11-27

Every Fixed Threshold

Fixed thresholds at La Rosita
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days172071982171
35 C (95 F): Days1794198356
40 C (104 F): Days91219983
90 F (32.2 C): Days171501982104
100 F (37.8 C): Days153019984
0 C (32 F): Ice days (max2219831
0 C (32 F): Frost days (min174719828
-10 C (14 F): Days with min3219832
20 C (68 F): Tropical nights (min1796200696
25 C (77 F): Days with min5320051
10 mm (0.39 in): Days with 10 mm or more rain2012200212
25 mm (0.98 in): Days with 25 mm or more rain16219811
50 mm (1.97 in): Days with 50 mm or more rain2120021

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 La Rosita 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).