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Built 2026-10-19 (19 October 2026)

St Francis 4 S Threshold Days by Year (USC00217308)

6 fixed thresholds counted per year at St Francis 4 S (USC00217308): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for St Francis 4 S Thresholds

  • St Francis 4 S: days with 10 mm (0.39 in) or more of precipitation in 25 years, most in 1986 with 40.
  • St Francis 4 S: days with 25 mm (0.98 in) or more of precipitation in 25 years, most in 1986 with 11.
  • St Francis 4 S: days with 10 cm (3.9 in) or more of snowfall in 22 years, most in 1969 with 7.
  • St Francis 4 S: days with 50 mm (1.97 in) or more of precipitation in 16 years, most in 1956 with 2.
  • 6 fixed thresholds have at least one qualifying day at St Francis 4 S.
25 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at St Francis 4 S Days per year at St Francis 4 S with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 40 in 1986. 0102030401955: 181956: 191957: 251958: 171959: 231960: 191961: 261962: 311963: 181964: 201965: 301966: 181967: 151968: 281969: 181970: 281971: 221972: 271973: 231974: 211983: 261986: 401987: 231988: 211989: 22195519581961196419671970197319861989
Days per year at St Francis 4 S with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 40 in 1986.
Days with 10 mm (0.39 in) or more of precipitation per year at St Francis 4 S
YearDaysDecade average
19551820.4
19561920.4
19572520.4
19581720.4
19592320.4
19601922.3
19612622.3
19623122.3
19631822.3
19642022.3
19653022.3
19661822.3
19671522.3
19682822.3
19691822.3
19702824.2
19712224.2
19722724.2
19732324.2
19742124.2
19832626.4
19864026.4
19872326.4
19882126.4
19892226.4
First to last qualifying date each year at St Francis 4 S For each year, a bar from the first to the last day at St Francis 4 S meeting 10 mm (0.39 in). 1955: 19 February 1955 to 6 October 19551956: 28 March 1956 to 30 October 19561957: 14 March 1957 to 19 November 19571958: 6 April 1958 to 26 October 19581959: 5 May 1959 to 28 December 19591960: 2 January 1960 to 5 December 19601961: 6 March 1961 to 3 November 19611962: 16 February 1962 to 8 October 19621963: 19 March 1963 to 22 November 19631964: 4 March 1964 to 23 September 19641965: 10 February 1965 to 12 December 19651966: 12 January 1966 to 8 December 19661967: 7 January 1967 to 8 October 19671968: 19 March 1968 to 23 December 19681969: 16 January 1969 to 28 December 19691970: 3 March 1970 to 9 November 19701971: 27 February 1971 to 18 November 19711972: 25 January 1972 to 30 December 19721973: 4 January 1973 to 21 November 19731974: 5 February 1974 to 1 November 19741983: 3 February 1983 to 28 November 19831986: 1 February 1986 to 8 November 19861987: 30 January 1987 to 30 November 19871988: 12 March 1988 to 27 December 19881989: 8 January 1989 to 27 December 19891955195919631967197119831989JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at St Francis 4 S meeting 10 mm (0.39 in).
First to last qualifying date each year at St Francis 4 S
YearFirst dateLast date
19551955-02-191955-10-06
19561956-03-281956-10-30
19571957-03-141957-11-19
19581958-04-061958-10-26
19591959-05-051959-12-28
19601960-01-021960-12-05
19611961-03-061961-11-03
19621962-02-161962-10-08
19631963-03-191963-11-22
19641964-03-041964-09-23
19651965-02-101965-12-12
19661966-01-121966-12-08
19671967-01-071967-10-08
19681968-03-191968-12-23
19691969-01-161969-12-28
19701970-03-031970-11-09
19711971-02-271971-11-18
19721972-01-251972-12-30
19731973-01-041973-11-21
19741974-02-051974-11-01
19831983-02-031983-11-28
19861986-02-011986-11-08
19871987-01-301987-11-30
19881988-03-121988-12-27
19891989-01-081989-12-27

Every Fixed Threshold

Fixed thresholds at St Francis 4 S
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2540198622
25 mm (0.98 in): Days with 25 mm or more rain251119864
50 mm (1.97 in): Days with 50 mm or more rain16219561
100 mm (3.94 in): Days with 100 mm or more rain1119601
10 cm (3.9 in): Days with 10 cm or more snowfall22719694
25 cm (9.8 in): Days with 25 cm or more snowfall2119651

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1955.

Download the Data

  • Data for St Francis 4 S 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).