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Built 2026-10-19 (19 October 2026)

St Marks 5 SSE Threshold Days by Year (USC00087867)

14 fixed thresholds counted per year at St Marks 5 SSE (USC00087867): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for St Marks 5 SSE Thresholds

  • St Marks 5 SSE: days with 10 mm (0.39 in) or more of precipitation in 38 years, most in 1973 with 52.
  • St Marks 5 SSE: days with 25 mm (0.98 in) or more of precipitation in 38 years, most in 1957 with 30.
  • St Marks 5 SSE: days with 50 mm (1.97 in) or more of precipitation in 38 years, most in 1957 with 11.
  • St Marks 5 SSE: days with a maximum temperature at or above 30 C (86 F) in 37 years, most in 1962 with 160.
  • 14 fixed thresholds have at least one qualifying day at St Marks 5 SSE.
37 years with a qualifying day
Days at or above 30 C (86 F) per year at St Marks 5 SSE Days per year at St Marks 5 SSE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 160 in 1962. 0501001502001909: 1181910: 1091915: 1531943: 1401944: 1361946: 1321947: 1331948: 1221949: 1501950: 1391951: 1451952: 1351953: 1341954: 1271955: 1591956: 1221957: 1271958: 1321959: 1311960: 1251961: 1251962: 1601963: 1461964: 1311966: 1181967: 1301968: 1371969: 1201970: 1331971: 1331972: 1301973: 1381974: 1151975: 1291976: 1021977: 1261979: 1211909194419491953195719611966197019741979
Days per year at St Marks 5 SSE with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 160 in 1962.
Days at or above 30 C (86 F) per year at St Marks 5 SSE
YearDaysDecade average
1909118118
1910109131
1915153131
1943140135.5
1944136135.5
1946132135.5
1947133135.5
1948122135.5
1949150135.5
1950139135.1
1951145135.1
1952135135.1
1953134135.1
1954127135.1
1955159135.1
1956122135.1
1957127135.1
1958132135.1
1959131135.1
1960125132.4
1961125132.4
1962160132.4
1963146132.4
1964131132.4
1966118132.4
1967130132.4
1968137132.4
1969120132.4
1970133125.2
1971133125.2
1972130125.2
1973138125.2
1974115125.2
1975129125.2
1976102125.2
1977126125.2
1979121125.2
First to last qualifying date each year at St Marks 5 SSE For each year, a bar from the first to the last day at St Marks 5 SSE meeting 30 C (86 F). 1909: 28 April 1909 to 11 November 19091910: 9 April 1910 to 26 October 19101915: 17 April 1915 to 14 November 19151943: 10 April 1943 to 22 October 19431944: 22 April 1944 to 26 October 19441946: 4 April 1946 to 1 November 19461947: 7 April 1947 to 30 October 19471948: 9 April 1948 to 25 September 19481949: 19 April 1949 to 28 October 19491950: 3 May 1950 to 31 October 19501951: 8 March 1951 to 16 October 19511952: 29 April 1952 to 17 October 19521953: 12 April 1953 to 24 October 19531954: 12 April 1954 to 15 October 19541955: 17 April 1955 to 13 October 19551956: 14 May 1956 to 10 October 19561957: 13 May 1957 to 26 September 19571958: 26 April 1958 to 15 October 19581959: 1 May 1959 to 13 October 19591960: 23 April 1960 to 17 October 19601961: 15 May 1961 to 31 October 19611962: 30 April 1962 to 21 October 19621963: 29 March 1963 to 29 October 19631964: 5 May 1964 to 2 October 19641966: 3 May 1966 to 18 October 19661967: 4 April 1967 to 7 October 19671968: 15 April 1968 to 18 October 19681969: 20 May 1969 to 19 October 19691970: 22 April 1970 to 12 October 19701971: 24 April 1971 to 17 October 19711972: 5 May 1972 to 19 October 19721973: 10 May 1973 to 22 October 19731974: 4 May 1974 to 29 September 19741975: 27 April 1975 to 28 October 19751976: 19 April 1976 to 2 October 19761977: 8 April 1977 to 23 October 19771979: 15 April 1979 to 22 October 197919091946195119561961196719721977JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at St Marks 5 SSE meeting 30 C (86 F).
First to last qualifying date each year at St Marks 5 SSE
YearFirst dateLast date
19091909-04-281909-11-11
19101910-04-091910-10-26
19151915-04-171915-11-14
19431943-04-101943-10-22
19441944-04-221944-10-26
19461946-04-041946-11-01
19471947-04-071947-10-30
19481948-04-091948-09-25
19491949-04-191949-10-28
19501950-05-031950-10-31
19511951-03-081951-10-16
19521952-04-291952-10-17
19531953-04-121953-10-24
19541954-04-121954-10-15
19551955-04-171955-10-13
19561956-05-141956-10-10
19571957-05-131957-09-26
19581958-04-261958-10-15
19591959-05-011959-10-13
19601960-04-231960-10-17
19611961-05-151961-10-31
19621962-04-301962-10-21
19631963-03-291963-10-29
19641964-05-051964-10-02
19661966-05-031966-10-18
19671967-04-041967-10-07
19681968-04-151968-10-18
19691969-05-201969-10-19
19701970-04-221970-10-12
19711971-04-241971-10-17
19721972-05-051972-10-19
19731973-05-101973-10-22
19741974-05-041974-09-29
19751975-04-271975-10-28
19761976-04-191976-10-02
19771977-04-081977-10-23
19791979-04-151979-10-22

Every Fixed Threshold

Fixed thresholds at St Marks 5 SSE
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days371601962121
35 C (95 F): Days3544191514
40 C (104 F): Days2219442
90 F (32.2 C): Days37114196278
100 F (37.8 C): Days14819521
0 C (32 F): Frost days (min3734191023
-10 C (14 F): Days with min3119621
20 C (68 F): Tropical nights (min371531959106
25 C (77 F): Days with min353619154
10 mm (0.39 in): Days with 10 mm or more rain3852197337
25 mm (0.98 in): Days with 25 mm or more rain3830195719
50 mm (1.97 in): Days with 50 mm or more rain381119577
100 mm (3.94 in): Days with 100 mm or more rain20519532
200 mm (7.87 in): Days with 200 mm or more rain1119641

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1909.

Download the Data

  • Data for St Marks 5 SSE 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).