Reforma II Threshold Days by Year (MXN00007226)
11 fixed thresholds counted per year at Reforma II (MXN00007226): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Reforma II Thresholds
- Reforma II: days with 10 mm (0.39 in) or more of precipitation in 30 years, most in 1981 with 77.
- Reforma II: days with 25 mm (0.98 in) or more of precipitation in 30 years, most in 1981 with 38.
- Reforma II: days with 50 mm (1.97 in) or more of precipitation in 30 years, most in 1993 with 16.
- Reforma II: days with a maximum temperature at or above 30 C (86 F) in 27 years, most in 1990 with 358.
- 11 fixed thresholds have at least one qualifying day at Reforma II.
Days at or above 30 C (86 F)
27 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1976 | 162 | 270 |
| 1977 | 303 | 270 |
| 1978 | 327 | 270 |
| 1979 | 288 | 270 |
| 1980 | 305 | 325.9 |
| 1981 | 321 | 325.9 |
| 1982 | 318 | 325.9 |
| 1983 | 327 | 325.9 |
| 1984 | 293 | 325.9 |
| 1985 | 332 | 325.9 |
| 1986 | 335 | 325.9 |
| 1987 | 349 | 325.9 |
| 1989 | 353 | 325.9 |
| 1990 | 358 | 322.9 |
| 1991 | 352 | 322.9 |
| 1992 | 335 | 322.9 |
| 1993 | 355 | 322.9 |
| 1994 | 323 | 322.9 |
| 1995 | 322 | 322.9 |
| 1996 | 310 | 322.9 |
| 1997 | 280 | 322.9 |
| 1998 | 271 | 322.9 |
| 2000 | 286 | 293 |
| 2001 | 320 | 293 |
| 2003 | 298 | 293 |
| 2007 | 285 | 293 |
| 2008 | 276 | 293 |
| Year | First date | Last date |
|---|---|---|
| 1976 | 1976-01-01 | 1976-12-20 |
| 1977 | 1977-02-01 | 1977-12-31 |
| 1978 | 1978-01-01 | 1978-12-31 |
| 1979 | 1979-01-01 | 1979-12-31 |
| 1980 | 1980-01-01 | 1980-12-17 |
| 1981 | 1981-01-06 | 1981-12-31 |
| 1982 | 1982-01-01 | 1982-12-31 |
| 1983 | 1983-01-01 | 1983-12-28 |
| 1984 | 1984-01-06 | 1984-12-31 |
| 1985 | 1985-01-01 | 1985-12-31 |
| 1986 | 1986-01-01 | 1986-12-31 |
| 1987 | 1987-01-03 | 1987-12-31 |
| 1989 | 1989-01-01 | 1989-12-31 |
| 1990 | 1990-01-01 | 1990-12-31 |
| 1991 | 1991-01-01 | 1991-12-31 |
| 1992 | 1992-01-01 | 1992-12-31 |
| 1993 | 1993-01-01 | 1993-12-31 |
| 1994 | 1994-01-01 | 1994-12-31 |
| 1995 | 1995-01-01 | 1995-12-31 |
| 1996 | 1996-01-01 | 1996-12-31 |
| 1997 | 1997-01-01 | 1997-12-26 |
| 1998 | 1998-01-04 | 1998-12-20 |
| 2000 | 2000-01-02 | 2000-12-31 |
| 2001 | 2001-01-01 | 2001-12-31 |
| 2003 | 2003-01-02 | 2003-12-29 |
| 2007 | 2007-01-01 | 2007-12-31 |
| 2008 | 2008-01-01 | 2008-12-31 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 27 | 358 | 1990 | 276 |
| 35 C (95 F): Days | 27 | 266 | 1991 | 70 |
| 40 C (104 F): Days | 22 | 34 | 1995 | 3 |
| 90 F (32.2 C): Days | 27 | 342 | 1990 | 135 |
| 100 F (37.8 C): Days | 27 | 85 | 1995 | 28 |
| 20 C (68 F): Tropical nights (min | 27 | 162 | 2003 | 160 |
| 25 C (77 F): Days with min | 3 | 6 | 1977 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 30 | 77 | 1981 | 72 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 30 | 38 | 1981 | 37 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 30 | 16 | 1993 | 10 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 19 | 3 | 1989 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1976.
Download the Data
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).