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

Guard Island Light STN Threshold Days by Year (USC00503454)

8 fixed thresholds counted per year at Guard Island Light STN (USC00503454): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Guard Island Light STN Thresholds

  • Guard Island Light STN: days with a maximum temperature at or below 0 C (32 F) in 20 years, most in 1950 with 34.
  • Guard Island Light STN: nights with a minimum temperature at or below 0 C (32 F) in 20 years, most in 1956 with 105.
  • Guard Island Light STN: days with 10 mm (0.39 in) or more of precipitation in 19 years, most in 1953 with 89.
  • Guard Island Light STN: days with 25 mm (0.98 in) or more of precipitation in 19 years, most in 1967 with 18.
  • 8 fixed thresholds have at least one qualifying day at Guard Island Light STN.
20 years with a qualifying day
Nights at or below 0 C (32 F) per year at Guard Island Light STN Days per year at Guard Island Light STN with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 105 in 1956. 0501001501945: 261948: 851949: 761950: 921951: 751952: 541953: 271954: 891955: 791956: 1051957: 711958: 471959: 691960: 331961: 381962: 431963: 241964: 421966: 521967: 471945194919511953195519571959196119631966
Days per year at Guard Island Light STN with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 105 in 1956.
Nights at or below 0 C (32 F) per year at Guard Island Light STN
YearDaysDecade average
19452662.3
19488562.3
19497662.3
19509270.8
19517570.8
19525470.8
19532770.8
19548970.8
19557970.8
195610570.8
19577170.8
19584770.8
19596970.8
19603339.9
19613839.9
19624339.9
19632439.9
19644239.9
19665239.9
19674739.9
First to last qualifying date each year at Guard Island Light STN For each year, a bar from the first to the last day at Guard Island Light STN meeting 0 C (32 F). 1945: 13 February 1945 to 25 December 19451948: 1 January 1948 to 31 December 19481949: 1 January 1949 to 31 December 19491950: 1 January 1950 to 15 December 19501951: 1 January 1951 to 31 December 19511952: 1 January 1952 to 20 December 19521953: 6 January 1953 to 29 October 19531954: 3 January 1954 to 30 December 19541955: 1 January 1955 to 30 December 19551956: 1 January 1956 to 29 December 19561957: 1 January 1957 to 30 December 19571958: 10 January 1958 to 31 December 19581959: 1 January 1959 to 31 December 19591960: 1 January 1960 to 19 December 19601961: 8 January 1961 to 31 December 19611962: 13 January 1962 to 31 December 19621963: 8 January 1963 to 16 December 19631964: 20 January 1964 to 31 December 19641966: 1 January 1966 to 11 December 19661967: 3 January 1967 to 23 December 19671945195019531956195919621966JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Guard Island Light STN meeting 0 C (32 F).
First to last qualifying date each year at Guard Island Light STN
YearFirst dateLast date
19451945-02-131945-12-25
19481948-01-011948-12-31
19491949-01-011949-12-31
19501950-01-011950-12-15
19511951-01-011951-12-31
19521952-01-011952-12-20
19531953-01-061953-10-29
19541954-01-031954-12-30
19551955-01-011955-12-30
19561956-01-011956-12-29
19571957-01-011957-12-30
19581958-01-101958-12-31
19591959-01-011959-12-31
19601960-01-011960-12-19
19611961-01-081961-12-31
19621962-01-131962-12-31
19631963-01-081963-12-16
19641964-01-201964-12-31
19661966-01-011966-12-11
19671967-01-031967-12-23

Every Fixed Threshold

Fixed thresholds at Guard Island Light STN
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
0 C (32 F): Ice days (max2034195012
0 C (32 F): Frost days (min20105195647
-10 C (14 F): Days with min141419495
20 C (68 F): Tropical nights (min1119581
10 mm (0.39 in): Days with 10 mm or more rain1989195370
25 mm (0.98 in): Days with 25 mm or more rain1918196718
50 mm (1.97 in): Days with 50 mm or more rain10219582
10 cm (3.9 in): Days with 10 cm or more snowfall51119527

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1946.

Download the Data

  • Data for Guard Island Light STN 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).