Built 2026-10-19 (19 October 2026)

Presa Las Ruinas Threshold Days by Year (MXN00015075)

6 fixed thresholds counted per year at Presa Las Ruinas (MXN00015075): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Presa Las Ruinas Thresholds

  • Presa Las Ruinas: days with 10 mm (0.39 in) or more of precipitation in 33 years, most in 1976 with 41.
  • Presa Las Ruinas: days with 25 mm (0.98 in) or more of precipitation in 33 years, most in 2006 with 13.
  • Presa Las Ruinas: nights with a minimum temperature at or below 0 C (32 F) in 25 years, most in 2012 with 69.
  • Presa Las Ruinas: days with a maximum temperature at or above 30 C (86 F) in 24 years, most in 2011 with 70.
  • 6 fixed thresholds have at least one qualifying day at Presa Las Ruinas.
24 years with a qualifying day
Days at or above 30 C (86 F) per year at Presa Las Ruinas Days per year at Presa Las Ruinas with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 70 in 2011. 0204060801978: 71979: 11980: 21981: 11982: 41983: 171984: 141985: 11986: 31987: 11988: 111993: 31996: 81997: 41998: 561999: 162001: 132002: 92003: 252004: 12006: 92007: 32011: 702012: 1419781981198419871996199920032007
Days per year at Presa Las Ruinas with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 70 in 2011.
Days at or above 30 C (86 F) per year at Presa Las Ruinas
YearDaysDecade average
197874
197914
198026
198116
198246
1983176
1984146
198516
198636
198716
1988116
1993317.4
1996817.4
1997417.4
19985617.4
19991617.4
20011310
2002910
20032510
2004110
2006910
2007310
20117042
20121442
First to last qualifying date each year at Presa Las Ruinas For each year, a bar from the first to the last day at Presa Las Ruinas meeting 30 C (86 F). 1978: 18 April 1978 to 12 May 19781979: 24 March 1979 to 24 March 19791980: 2 April 1980 to 16 May 19801981: 9 May 1981 to 9 May 19811982: 1 April 1982 to 6 April 19821983: 19 April 1983 to 31 May 19831984: 26 March 1984 to 30 April 19841985: 13 May 1985 to 13 May 19851986: 12 May 1986 to 16 May 19861987: 21 March 1987 to 21 March 19871988: 21 April 1988 to 3 June 19881993: 4 May 1993 to 5 June 19931996: 4 April 1996 to 27 May 19961997: 1 March 1997 to 16 June 19971998: 5 March 1998 to 20 September 19981999: 2 April 1999 to 5 June 19992001: 12 March 2001 to 30 May 20012002: 21 April 2002 to 4 May 20022003: 5 March 2003 to 31 May 20032004: 20 April 2004 to 20 April 20042006: 12 March 2006 to 9 May 20062007: 3 June 2007 to 7 June 20072011: 25 March 2011 to 21 June 20112012: 28 April 2012 to 30 June 201219781981198419871996199920032007JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Presa Las Ruinas meeting 30 C (86 F).
First to last qualifying date each year at Presa Las Ruinas
YearFirst dateLast date
19781978-04-181978-05-12
19791979-03-241979-03-24
19801980-04-021980-05-16
19811981-05-091981-05-09
19821982-04-011982-04-06
19831983-04-191983-05-31
19841984-03-261984-04-30
19851985-05-131985-05-13
19861986-05-121986-05-16
19871987-03-211987-03-21
19881988-04-211988-06-03
19931993-05-041993-06-05
19961996-04-041996-05-27
19971997-03-011997-06-16
19981998-03-051998-09-20
19991999-04-021999-06-05
20012001-03-122001-05-30
20022002-04-212002-05-04
20032003-03-052003-05-31
20042004-04-202004-04-20
20062006-03-122006-05-09
20072007-06-032007-06-07
20112011-03-252011-06-21
20122012-04-282012-06-30

Every Fixed Threshold

Fixed thresholds at Presa Las Ruinas
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2470201114
90 F (32.2 C): Days518201118
0 C (32 F): Frost days (min2569201269
10 mm (0.39 in): Days with 10 mm or more rain3341197625
25 mm (0.98 in): Days with 25 mm or more rain331320066
50 mm (1.97 in): Days with 50 mm or more rain15320113

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1978.

Download the Data

  • Data for Presa Las Ruinas 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).