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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

St Johns Threshold Days by Year (ACW00011647)

7 fixed thresholds counted per year at St Johns (ACW00011647): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for St Johns Thresholds

  • St Johns: days with 10 mm (0.39 in) or more of precipitation in 8 years, most in 1962 with 33.
  • St Johns: days with 25 mm (0.98 in) or more of precipitation in 8 years, most in 1958 with 13.
  • St Johns: days with 50 mm (1.97 in) or more of precipitation in 7 years, most in 1963 with 4.
  • St Johns: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1959 with 1.
  • 7 fixed thresholds have at least one qualifying day at St Johns.
8 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at St Johns Days per year at St Johns with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 33 in 1962. 0102030401958: 321959: 321960: 201961: 261962: 331963: 271964: 181965: 1719581959196019611962196319641965
Days per year at St Johns with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 33 in 1962.
Days with 10 mm (0.39 in) or more of precipitation per year at St Johns
YearDaysDecade average
19583232
19593232
19602023.5
19612623.5
19623323.5
19632723.5
19641823.5
19651723.5
First to last qualifying date each year at St Johns For each year, a bar from the first to the last day at St Johns meeting 10 mm (0.39 in). 1958: 23 February 1958 to 1 December 19581959: 8 January 1959 to 31 December 19591960: 8 January 1960 to 5 December 19601961: 2 February 1961 to 23 December 19611962: 9 January 1962 to 7 November 19621963: 2 January 1963 to 17 December 19631964: 24 January 1964 to 2 December 19641965: 5 January 1965 to 12 December 196519581959196019611962196319641965JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at St Johns meeting 10 mm (0.39 in).
First to last qualifying date each year at St Johns
YearFirst dateLast date
19581958-02-231958-12-01
19591959-01-081959-12-31
19601960-01-081960-12-05
19611961-02-021961-12-23
19621962-01-091962-11-07
19631963-01-021963-12-17
19641964-01-241964-12-02
19651965-01-051965-12-12

Every Fixed Threshold

Fixed thresholds at St Johns
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days11102025110
20 C (68 F): Tropical nights (min13572025357
25 C (77 F): Days with min12152025215
10 mm (0.39 in): Days with 10 mm or more rain833196217
25 mm (0.98 in): Days with 25 mm or more rain813195810
50 mm (1.97 in): Days with 50 mm or more rain7419634
100 mm (3.94 in): Days with 100 mm or more rain2119591

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 2025.

Download the Data

  • Data for St Johns 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 (2025-12-31).