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

Rowley Island Threshold Days by Year (CA002403625)

9 fixed thresholds counted per year at Rowley Island (CA002403625): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rowley Island Thresholds

  • Rowley Island: nights with a minimum temperature at or below 0 C (32 F) in 12 years, most in 1965 with 324.
  • Rowley Island: nights with a minimum temperature at or below -10 C (14 F) in 12 years, most in 1964 with 233.
  • Rowley Island: nights with a minimum temperature at or below -20 C (-4 F) in 12 years, most in 1964 with 174.
  • Rowley Island: nights with a minimum temperature at or below -30 C (-22 F) in 12 years, most in 1964 with 116.
  • 9 fixed thresholds have at least one qualifying day at Rowley Island.
12 years with a qualifying day
Nights at or below 0 C (32 F) per year at Rowley Island Days per year at Rowley Island with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 324 in 1965. 01002003004001958: 3161959: 2891960: 2841961: 3201962: 2961963: 3181964: 3141965: 3241966: 2951967: 3191968: 3231969: 298195819601962196419661968
Days per year at Rowley Island with nights with a minimum temperature at or below 0 C (32 F), with the decade average as a line. The most was 324 in 1965.
Nights at or below 0 C (32 F) per year at Rowley Island
YearDaysDecade average
1958316302.5
1959289302.5
1960284309.1
1961320309.1
1962296309.1
1963318309.1
1964314309.1
1965324309.1
1966295309.1
1967319309.1
1968323309.1
1969298309.1
First to last qualifying date each year at Rowley Island For each year, a bar from the first to the last day at Rowley Island meeting 0 C (32 F). 1958: 1 January 1958 to 31 December 19581959: 1 January 1959 to 31 December 19591960: 1 January 1960 to 31 December 19601961: 1 January 1961 to 31 December 19611962: 1 January 1962 to 31 December 19621963: 1 January 1963 to 31 December 19631964: 1 January 1964 to 31 December 19641965: 1 January 1965 to 31 December 19651966: 1 January 1966 to 31 December 19661967: 1 January 1967 to 31 December 19671968: 1 January 1968 to 31 December 19681969: 1 January 1969 to 31 December 1969195819601962196419661968JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Rowley Island meeting 0 C (32 F).
First to last qualifying date each year at Rowley Island
YearFirst dateLast date
19581958-01-011958-12-31
19591959-01-011959-12-31
19601960-01-011960-12-31
19611961-01-011961-12-31
19621962-01-011962-12-31
19631963-01-011963-12-31
19641964-01-011964-12-31
19651965-01-011965-12-31
19661966-01-011966-12-31
19671967-01-011967-12-31
19681968-01-011968-12-31
19691969-01-011969-12-31

Every Fixed Threshold

Fixed thresholds at Rowley Island
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
0 C (32 F): Ice days (max112661963261
0 C (32 F): Frost days (min123241965298
-10 C (14 F): Days with min122331964212
-20 C (-4 F): Days with min121741964145
-30 C (-22 F): Days with min12116196459
-40 C (-40 F): Days with min121819613
10 mm (0.39 in): Days with 10 mm or more rain9619661
25 mm (0.98 in): Days with 25 mm or more rain4219672
10 cm (3.9 in): Days with 10 cm or more snowfall5219611

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1958.

Download the Data

  • Data for Rowley Island 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).