San Juan Evangelista (Smn) Threshold Days by Year (MXN00030221)
11 fixed thresholds counted per year at San Juan Evangelista (Smn) (MXN00030221): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for San Juan Evangelista (Smn) Thresholds
- San Juan Evangelista (Smn): days with 10 mm (0.39 in) or more of precipitation in 33 years, most in 1978 with 67.
- San Juan Evangelista (Smn): days with 25 mm (0.98 in) or more of precipitation in 33 years, most in 1978 with 37.
- San Juan Evangelista (Smn): days with 50 mm (1.97 in) or more of precipitation in 29 years, most in 1952 with 9.
- San Juan Evangelista (Smn): days with 100 mm (3.94 in) or more of precipitation in 8 years, most in 1957 with 2.
- 11 fixed thresholds have at least one qualifying day at San Juan Evangelista (Smn).
Days at or above 30 C (86 F)
6 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1973 | 96 | 94.8 |
| 1975 | 98 | 94.8 |
| 1976 | 91 | 94.8 |
| 1978 | 95 | 94.8 |
| 1979 | 94 | 94.8 |
| 1980 | 118 | 118 |
| Year | First date | Last date |
|---|---|---|
| 1973 | 1973-03-06 | 1973-09-27 |
| 1975 | 1975-02-17 | 1975-10-25 |
| 1976 | 1976-03-04 | 1976-10-28 |
| 1978 | 1978-02-28 | 1978-12-08 |
| 1979 | 1979-02-23 | 1979-10-22 |
| 1980 | 1980-02-21 | 1980-10-28 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 6 | 118 | 1980 | 118 |
| 35 C (95 F): Days | 5 | 12 | 1980 | 12 |
| 90 F (32.2 C): Days | 6 | 43 | 1980 | 43 |
| 100 F (37.8 C): Days | 1 | 3 | 1978 | 3 |
| 20 C (68 F): Tropical nights (min | 5 | 267 | 1973 | 236 |
| 25 C (77 F): Days with min | 5 | 32 | 1973 | 25 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 33 | 67 | 1978 | 41 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 33 | 37 | 1978 | 18 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 29 | 9 | 1952 | 4 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 8 | 2 | 1957 | 1 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 1 | 0 | n/a | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1973.
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).