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

Duncan Bay Threshold Days by Year (CA001022560)

6 fixed thresholds counted per year at Duncan Bay (CA001022560): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Duncan Bay Thresholds

  • Duncan Bay: days with 10 mm (0.39 in) or more of precipitation in 26 years, most in 1961 with 76.
  • Duncan Bay: days with 25 mm (0.98 in) or more of precipitation in 26 years, most in 1968 with 26.
  • Duncan Bay: days with 10 cm (3.9 in) or more of snowfall in 21 years, most in 1964 with 8.
  • Duncan Bay: days with 50 mm (1.97 in) or more of precipitation in 18 years, most in 1982 with 6.
  • 6 fixed thresholds have at least one qualifying day at Duncan Bay.
26 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Duncan Bay Days per year at Duncan Bay with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 76 in 1961. 0204060801958: 571959: 521960: 551961: 761962: 521963: 561964: 541965: 571966: 601967: 601968: 701969: 571970: 451971: 611972: 531973: 571974: 641975: 641976: 401977: 451978: 461979: 491980: 601981: 571982: 521983: 67195819611964196719701973197619791982
Days per year at Duncan Bay with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 76 in 1961.
Days with 10 mm (0.39 in) or more of precipitation per year at Duncan Bay
YearDaysDecade average
19585754.5
19595254.5
19605559.7
19617659.7
19625259.7
19635659.7
19645459.7
19655759.7
19666059.7
19676059.7
19687059.7
19695759.7
19704552.4
19716152.4
19725352.4
19735752.4
19746452.4
19756452.4
19764052.4
19774552.4
19784652.4
19794952.4
19806059
19815759
19825259
19836759
First to last qualifying date each year at Duncan Bay For each year, a bar from the first to the last day at Duncan Bay meeting 10 mm (0.39 in). 1958: 7 January 1958 to 31 December 19581959: 6 January 1959 to 24 December 19591960: 4 January 1960 to 30 December 19601961: 4 January 1961 to 27 December 19611962: 2 January 1962 to 31 December 19621963: 2 February 1963 to 31 December 19631964: 2 January 1964 to 31 December 19641965: 12 January 1965 to 31 December 19651966: 3 January 1966 to 31 December 19661967: 1 January 1967 to 24 December 19671968: 8 January 1968 to 30 December 19681969: 3 January 1969 to 27 December 19691970: 8 January 1970 to 29 December 19701971: 8 January 1971 to 30 December 19711972: 4 January 1972 to 31 December 19721973: 1 January 1973 to 23 December 19731974: 12 January 1974 to 29 December 19741975: 2 January 1975 to 28 December 19751976: 3 January 1976 to 15 December 19761977: 13 January 1977 to 16 December 19771978: 3 January 1978 to 19 December 19781979: 16 January 1979 to 24 December 19791980: 1 January 1980 to 26 December 19801981: 17 January 1981 to 31 December 19811982: 7 January 1982 to 20 December 19821983: 1 January 1983 to 29 December 19831958196219661970197419781982JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Duncan Bay meeting 10 mm (0.39 in).
First to last qualifying date each year at Duncan Bay
YearFirst dateLast date
19581958-01-071958-12-31
19591959-01-061959-12-24
19601960-01-041960-12-30
19611961-01-041961-12-27
19621962-01-021962-12-31
19631963-02-021963-12-31
19641964-01-021964-12-31
19651965-01-121965-12-31
19661966-01-031966-12-31
19671967-01-011967-12-24
19681968-01-081968-12-30
19691969-01-031969-12-27
19701970-01-081970-12-29
19711971-01-081971-12-30
19721972-01-041972-12-31
19731973-01-011973-12-23
19741974-01-121974-12-29
19751975-01-021975-12-28
19761976-01-031976-12-15
19771977-01-131977-12-16
19781978-01-031978-12-19
19791979-01-161979-12-24
19801980-01-011980-12-26
19811981-01-171981-12-31
19821982-01-071982-12-20
19831983-01-011983-12-29

Every Fixed Threshold

Fixed thresholds at Duncan Bay
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2676196167
25 mm (0.98 in): Days with 25 mm or more rain2626196820
50 mm (1.97 in): Days with 50 mm or more rain18619822
10 cm (3.9 in): Days with 10 cm or more snowfall21819641
25 cm (9.8 in): Days with 25 cm or more snowfall4219642
50 cm (19.7 in): Days with 50 cm or more snowfall1119781

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 Duncan Bay 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).