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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

San Salvador Threshold Days by Year (BFW00012716)

8 fixed thresholds counted per year at San Salvador (BFW00012716): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for San Salvador Thresholds

  • San Salvador: days with 10 mm (0.39 in) or more of precipitation in 8 years, most in 1958 with 32.
  • San Salvador: days with 25 mm (0.98 in) or more of precipitation in 8 years, most in 1958 with 18.
  • San Salvador: days with 50 mm (1.97 in) or more of precipitation in 8 years, most in 1961 with 9.
  • San Salvador: days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 1956 with 3.
  • 8 fixed thresholds have at least one qualifying day at San Salvador.
8 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at San Salvador Days per year at San Salvador with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 32 in 1958. 0102030401956: 231958: 321959: 271960: 271961: 291962: 221963: 281964: 3019561958195919601961196219631964
Days per year at San Salvador with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 32 in 1958.
Days with 10 mm (0.39 in) or more of precipitation per year at San Salvador
YearDaysDecade average
19562327.3
19583227.3
19592727.3
19602727.2
19612927.2
19622227.2
19632827.2
19643027.2
First to last qualifying date each year at San Salvador For each year, a bar from the first to the last day at San Salvador meeting 10 mm (0.39 in). 1956: 11 January 1956 to 14 November 19561958: 3 January 1958 to 28 December 19581959: 17 January 1959 to 24 December 19591960: 31 January 1960 to 25 December 19601961: 10 January 1961 to 28 December 19611962: 2 January 1962 to 9 December 19621963: 5 February 1963 to 30 December 19631964: 1 January 1964 to 9 November 196419561958195919601961196219631964JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at San Salvador meeting 10 mm (0.39 in).
First to last qualifying date each year at San Salvador
YearFirst dateLast date
19561956-01-111956-11-14
19581958-01-031958-12-28
19591959-01-171959-12-24
19601960-01-311960-12-25
19611961-01-101961-12-28
19621962-01-021962-12-09
19631963-02-051963-12-30
19641964-01-011964-11-09

Every Fixed Threshold

Fixed thresholds at San Salvador
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days21121956126
90 F (32.2 C): Days230195630
20 C (68 F): Tropical nights (min22901956231
25 C (77 F): Days with min2731956129
10 mm (0.39 in): Days with 10 mm or more rain832195830
25 mm (0.98 in): Days with 25 mm or more rain81819586
50 mm (1.97 in): Days with 50 mm or more rain8919611
100 mm (3.94 in): Days with 100 mm or more rain4319561

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1956.

Download the Data

  • Data for San Salvador 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 (2026-10-17).