San Francisco Tlalcilalcalpan Threshold Days by Year (MXN00015089)
8 fixed thresholds counted per year at San Francisco Tlalcilalcalpan (MXN00015089): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for San Francisco Tlalcilalcalpan Thresholds
- San Francisco Tlalcilalcalpan: days with 10 mm (0.39 in) or more of precipitation in 56 years, most in 1976 with 41.
- San Francisco Tlalcilalcalpan: nights with a minimum temperature at or below 0 C (32 F) in 55 years, most in 1975 with 78.
- San Francisco Tlalcilalcalpan: days with 25 mm (0.98 in) or more of precipitation in 55 years, most in 1976 with 11.
- San Francisco Tlalcilalcalpan: days with a maximum temperature at or above 30 C (86 F) in 11 years, most in 1972 with 60.
- 8 fixed thresholds have at least one qualifying day at San Francisco Tlalcilalcalpan.
Days at or above 30 C (86 F)
11 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1954 | 2 | 1.5 |
| 1955 | 1 | 1.5 |
| 1961 | 2 | 1.5 |
| 1969 | 1 | 1.5 |
| 1970 | 4 | 28.2 |
| 1971 | 44 | 28.2 |
| 1972 | 60 | 28.2 |
| 1974 | 15 | 28.2 |
| 1976 | 18 | 28.2 |
| 1983 | 2 | 2 |
| 1998 | 2 | 2 |
| Year | First date | Last date |
|---|---|---|
| 1954 | 1954-04-01 | 1954-04-06 |
| 1955 | 1955-04-21 | 1955-04-21 |
| 1961 | 1961-04-25 | 1961-05-13 |
| 1969 | 1969-04-20 | 1969-04-20 |
| 1970 | 1970-04-26 | 1970-06-03 |
| 1971 | 1971-04-12 | 1971-11-21 |
| 1972 | 1972-02-06 | 1972-11-01 |
| 1974 | 1974-03-04 | 1974-05-17 |
| 1976 | 1976-02-11 | 1976-06-19 |
| 1983 | 1983-05-02 | 1983-05-03 |
| 1998 | 1998-05-08 | 1998-05-09 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 11 | 60 | 1972 | 2 |
| 35 C (95 F): Days | 3 | 6 | 1971 | 3 |
| 90 F (32.2 C): Days | 3 | 20 | 1971 | 5 |
| 0 C (32 F): Frost days (min | 55 | 78 | 1975 | 9 |
| -10 C (14 F): Days with min | 1 | 1 | 1940 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 56 | 41 | 1976 | 32 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 55 | 11 | 1976 | 11 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 7 | 4 | 1976 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1954.
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).