San Salvador/Ilopan Threshold Days by Year (ES003800510)
8 fixed thresholds counted per year at San Salvador/Ilopan (ES003800510): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for San Salvador/Ilopan Thresholds
- San Salvador/Ilopan: days with 10 mm (0.39 in) or more of precipitation in 15 years, most in 1980 with 67.
- San Salvador/Ilopan: days with 25 mm (0.98 in) or more of precipitation in 15 years, most in 1980 with 31.
- San Salvador/Ilopan: days with 50 mm (1.97 in) or more of precipitation in 15 years, most in 1981 with 6.
- San Salvador/Ilopan: nights with a minimum temperature at or above 20 C (68 F) in 10 years, most in 1961 with 79.
- 8 fixed thresholds have at least one qualifying day at San Salvador/Ilopan.
Days with 10 mm (0.39 in) or more of precipitation
15 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1979 | 51 | 51 |
| 1980 | 67 | 53.9 |
| 1981 | 50 | 53.9 |
| 1982 | 48 | 53.9 |
| 1983 | 48 | 53.9 |
| 1984 | 70 | 53.9 |
| 1985 | 50 | 53.9 |
| 1986 | 55 | 53.9 |
| 1987 | 41 | 53.9 |
| 1988 | 56 | 53.9 |
| 1990 | 63 | 61.8 |
| 1991 | 58 | 61.8 |
| 1992 | 62 | 61.8 |
| 1993 | 64 | 61.8 |
| 2025 | 14 | 14 |
| Year | First date | Last date |
|---|---|---|
| 1979 | 1979-04-06 | 1979-10-31 |
| 1980 | 1980-01-19 | 1980-10-26 |
| 1981 | 1981-03-09 | 1981-10-30 |
| 1982 | 1982-05-01 | 1982-12-05 |
| 1983 | 1983-05-09 | 1983-12-16 |
| 1984 | 1984-04-23 | 1984-11-08 |
| 1985 | 1985-04-12 | 1985-11-03 |
| 1986 | 1986-04-27 | 1986-11-16 |
| 1987 | 1987-05-12 | 1987-10-01 |
| 1988 | 1988-05-12 | 1988-12-01 |
| 1990 | 1990-02-21 | 1990-11-30 |
| 1991 | 1991-04-04 | 1991-12-04 |
| 1992 | 1992-04-16 | 1992-12-08 |
| 1993 | 1993-04-19 | 1993-10-29 |
| 2025 | 2025-04-24 | 2025-08-12 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 2 | 283 | 1961 | 85 |
| 35 C (95 F): Days | 2 | 5 | 1961 | 3 |
| 90 F (32.2 C): Days | 2 | 111 | 1961 | 36 |
| 20 C (68 F): Tropical nights (min | 10 | 79 | 1961 | 62 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 15 | 67 | 1980 | 14 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 15 | 31 | 1980 | 6 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 15 | 6 | 1981 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 4 | 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 1961.
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).