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Data as of 2025-12-31
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Built 2026-10-16 (16 October 2026)

Black Point 717 Threshold Days by Year

5 fixed thresholds counted per year at Black Point 717 (USC00510232): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Black Point 717 Thresholds

  • Black Point 717: days with 10 mm (0.39 in) or more of precipitation in 33 years, most in 1951 with 27.
  • Black Point 717: days with 25 mm (0.98 in) or more of precipitation in 33 years, most in 1951 with 14.
  • Black Point 717: days with 50 mm (1.97 in) or more of precipitation in 26 years, most in 1951 with 6.
  • Black Point 717: days with 100 mm (3.94 in) or more of precipitation in 9 years, most in 1949 with 2.
  • 5 fixed thresholds have at least one qualifying day at Black Point 717.
33 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Black Point 717 Days per year at Black Point 717 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 27 in 1951. 01020301920: 111921: 121922: 121923: 211924: 131925: 81926: 51927: 181928: 51929: 161930: 171931: 51932: 101933: 121934: 101944: 91945: 61946: 171947: 31948: 151949: 101950: 181951: 271952: 31953: 71954: 151955: 121956: 161957: 141958: 101959: 81961: 81962: 9192019241928193219451949195319571962
Days per year at Black Point 717 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 27 in 1951.
Days with 10 mm (0.39 in) or more of precipitation per year at Black Point 717
YearDaysDecade average
19201112.1
19211212.1
19221212.1
19232112.1
19241312.1
1925812.1
1926512.1
19271812.1
1928512.1
19291612.1
19301710.8
1931510.8
19321010.8
19331210.8
19341010.8
1944910
1945610
19461710
1947310
19481510
19491010
19501813
19512713
1952313
1953713
19541513
19551213
19561613
19571413
19581013
1959813
196188.5
196298.5
First to last qualifying date each year at Black Point 717 For each year, a bar from the first to the last day at Black Point 717 meeting 10 mm (0.39 in). 1920: 27 January 1920 to 24 December 19201921: 6 January 1921 to 23 December 19211922: 5 January 1922 to 6 December 19221923: 14 January 1923 to 31 December 19231924: 16 February 1924 to 21 December 19241925: 13 March 1925 to 22 December 19251926: 11 April 1926 to 25 October 19261927: 10 January 1927 to 28 December 19271928: 6 April 1928 to 16 December 19281929: 17 January 1929 to 23 December 19291930: 2 January 1930 to 6 December 19301931: 8 January 1931 to 12 October 19311932: 1 February 1932 to 17 November 19321933: 4 January 1933 to 24 December 19331934: 27 January 1934 to 27 October 19341944: 27 February 1944 to 26 December 19441945: 7 April 1945 to 10 December 19451946: 26 January 1946 to 21 December 19461947: 12 September 1947 to 26 October 19471948: 3 January 1948 to 30 November 19481949: 8 January 1949 to 19 December 19491950: 7 January 1950 to 28 December 19501951: 1 January 1951 to 31 December 19511952: 19 January 1952 to 17 October 19521953: 13 January 1953 to 27 December 19531954: 1 January 1954 to 22 December 19541955: 21 January 1955 to 21 December 19551956: 12 January 1956 to 7 December 19561957: 16 January 1957 to 6 December 19571958: 28 February 1958 to 30 December 19581959: 9 January 1959 to 3 November 19591961: 31 January 1961 to 6 December 19611962: 29 January 1962 to 17 October 19621920192519301944194919541959JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Black Point 717 meeting 10 mm (0.39 in).
First to last qualifying date each year at Black Point 717
YearFirst dateLast date
19201920-01-271920-12-24
19211921-01-061921-12-23
19221922-01-051922-12-06
19231923-01-141923-12-31
19241924-02-161924-12-21
19251925-03-131925-12-22
19261926-04-111926-10-25
19271927-01-101927-12-28
19281928-04-061928-12-16
19291929-01-171929-12-23
19301930-01-021930-12-06
19311931-01-081931-10-12
19321932-02-011932-11-17
19331933-01-041933-12-24
19341934-01-271934-10-27
19441944-02-271944-12-26
19451945-04-071945-12-10
19461946-01-261946-12-21
19471947-09-121947-10-26
19481948-01-031948-11-30
19491949-01-081949-12-19
19501950-01-071950-12-28
19511951-01-011951-12-31
19521952-01-191952-10-17
19531953-01-131953-12-27
19541954-01-011954-12-22
19551955-01-211955-12-21
19561956-01-121956-12-07
19571957-01-161957-12-06
19581958-02-281958-12-30
19591959-01-091959-11-03
19611961-01-311961-12-06
19621962-01-291962-10-17

Every Fixed Threshold

Fixed thresholds at Black Point 717
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain332719519
25 mm (0.98 in): Days with 25 mm or more rain331419512
50 mm (1.97 in): Days with 50 mm or more rain26619511
100 mm (3.94 in): Days with 100 mm or more rain9219491
200 mm (7.87 in): Days with 200 mm or more rain1119581

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1920.

Download the Data

  • Data for Black Point 717 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).