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Built 2026-10-19 (19 October 2026)

Monterrey Threshold Days by Year (MXN00007349)

12 fixed thresholds counted per year at Monterrey (MXN00007349): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Monterrey Thresholds

  • Monterrey: days with 10 mm (0.39 in) or more of precipitation in 26 years, most in 1997 with 62.
  • Monterrey: days with 25 mm (0.98 in) or more of precipitation in 26 years, most in 1998 with 23.
  • Monterrey: days with 50 mm (1.97 in) or more of precipitation in 24 years, most in 1998 with 14.
  • Monterrey: days with a maximum temperature at or above 30 C (86 F) in 20 years, most in 1995 with 330.
  • 12 fixed thresholds have at least one qualifying day at Monterrey.
20 years with a qualifying day
Days at or above 30 C (86 F) per year at Monterrey Days per year at Monterrey with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 330 in 1995. 01002003004001982: 2701985: 2771986: 2901987: 3021988: 2391991: 2901992: 2821994: 3111995: 3301996: 3291997: 2991998: 2891999: 2682000: 2652002: 3002003: 2722005: 1432006: 92007: 252010: 2031982198619881992199519971999200220052007
Days per year at Monterrey with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 330 in 1995.
Days at or above 30 C (86 F) per year at Monterrey
YearDaysDecade average
1982270275.6
1985277275.6
1986290275.6
1987302275.6
1988239275.6
1991290299.8
1992282299.8
1994311299.8
1995330299.8
1996329299.8
1997299299.8
1998289299.8
1999268299.8
2000265169
2002300169
2003272169
2005143169
20069169
200725169
2010203203
First to last qualifying date each year at Monterrey For each year, a bar from the first to the last day at Monterrey meeting 30 C (86 F). 1982: 1 January 1982 to 26 December 19821985: 1 January 1985 to 31 December 19851986: 1 January 1986 to 31 December 19861987: 1 January 1987 to 28 December 19871988: 1 January 1988 to 25 November 19881991: 2 January 1991 to 24 December 19911992: 5 January 1992 to 31 December 19921994: 1 January 1994 to 30 November 19941995: 3 January 1995 to 31 December 19951996: 2 January 1996 to 31 December 19961997: 1 January 1997 to 26 December 19971998: 4 January 1998 to 31 December 19981999: 1 January 1999 to 25 December 19992000: 2 January 2000 to 27 December 20002002: 1 January 2002 to 31 December 20022003: 1 January 2003 to 31 December 20032005: 1 January 2005 to 11 December 20052006: 3 March 2006 to 15 August 20062007: 27 February 2007 to 7 October 20072010: 7 January 2010 to 30 December 20101982198719921996199920032007JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Monterrey meeting 30 C (86 F).
First to last qualifying date each year at Monterrey
YearFirst dateLast date
19821982-01-011982-12-26
19851985-01-011985-12-31
19861986-01-011986-12-31
19871987-01-011987-12-28
19881988-01-011988-11-25
19911991-01-021991-12-24
19921992-01-051992-12-31
19941994-01-011994-11-30
19951995-01-031995-12-31
19961996-01-021996-12-31
19971997-01-011997-12-26
19981998-01-041998-12-31
19991999-01-011999-12-25
20002000-01-022000-12-27
20022002-01-012002-12-31
20032003-01-012003-12-31
20052005-01-012005-12-11
20062006-03-032006-08-15
20072007-02-272007-10-07
20102010-01-072010-12-30

Every Fixed Threshold

Fixed thresholds at Monterrey
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days203301995203
35 C (95 F): Days19129200230
40 C (104 F): Days52319991
90 F (32.2 C): Days20225200286
100 F (37.8 C): Days164819994
20 C (68 F): Tropical nights (min199019883
25 C (77 F): Days with min1119881
10 mm (0.39 in): Days with 10 mm or more rain2662199736
25 mm (0.98 in): Days with 25 mm or more rain2623199816
50 mm (1.97 in): Days with 50 mm or more rain241419983
100 mm (3.94 in): Days with 100 mm or more rain5619981
200 mm (7.87 in): Days with 200 mm or more rain1120051

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1982.

Download the Data

  • Data for Monterrey 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).