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

Dirk Hartog Island Threshold Days by Year (ASN00006018)

4 fixed thresholds counted per year at Dirk Hartog Island (ASN00006018): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Dirk Hartog Island Thresholds

  • Dirk Hartog Island: days with 10 mm (0.39 in) or more of precipitation in 18 years, most in 1921 with 19.
  • Dirk Hartog Island: days with 25 mm (0.98 in) or more of precipitation in 16 years, most in 1915 with 6.
  • Dirk Hartog Island: days with 50 mm (1.97 in) or more of precipitation in 7 years, most in 1921 with 3.
  • Dirk Hartog Island: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1918 with 1.
  • 4 fixed thresholds have at least one qualifying day at Dirk Hartog Island.
18 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Dirk Hartog Island Days per year at Dirk Hartog Island with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 19 in 1921. 051015201915: 181916: 91917: 111918: 151919: 51920: 81921: 191922: 81924: 41925: 81926: 81927: 111939: 111941: 71942: 61943: 51944: 101945: 13191519171919192119241926193919421944
Days per year at Dirk Hartog Island with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 19 in 1921.
Days with 10 mm (0.39 in) or more of precipitation per year at Dirk Hartog Island
YearDaysDecade average
19151811.6
1916911.6
19171111.6
19181511.6
1919511.6
192089.4
1921199.4
192289.4
192449.4
192589.4
192689.4
1927119.4
19391111
194178.2
194268.2
194358.2
1944108.2
1945138.2
First to last qualifying date each year at Dirk Hartog Island For each year, a bar from the first to the last day at Dirk Hartog Island meeting 10 mm (0.39 in). 1915: 11 January 1915 to 29 August 19151916: 20 January 1916 to 20 October 19161917: 15 March 1917 to 18 September 19171918: 10 February 1918 to 16 September 19181919: 17 April 1919 to 11 August 19191920: 13 March 1920 to 7 September 19201921: 18 February 1921 to 20 August 19211922: 25 March 1922 to 25 August 19221924: 7 June 1924 to 15 October 19241925: 28 February 1925 to 14 August 19251926: 16 April 1926 to 11 August 19261927: 12 March 1927 to 10 October 19271939: 4 May 1939 to 3 August 19391941: 29 April 1941 to 10 July 19411942: 22 March 1942 to 11 August 19421943: 28 February 1943 to 8 August 19431944: 13 February 1944 to 27 August 19441945: 15 May 1945 to 5 October 1945191519181921192519391943JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Dirk Hartog Island meeting 10 mm (0.39 in).
First to last qualifying date each year at Dirk Hartog Island
YearFirst dateLast date
19151915-01-111915-08-29
19161916-01-201916-10-20
19171917-03-151917-09-18
19181918-02-101918-09-16
19191919-04-171919-08-11
19201920-03-131920-09-07
19211921-02-181921-08-20
19221922-03-251922-08-25
19241924-06-071924-10-15
19251925-02-281925-08-14
19261926-04-161926-08-11
19271927-03-121927-10-10
19391939-05-041939-08-03
19411941-04-291941-07-10
19421942-03-221942-08-11
19431943-02-281943-08-08
19441944-02-131944-08-27
19451945-05-151945-10-05

Every Fixed Threshold

Fixed thresholds at Dirk Hartog Island
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain1819192113
25 mm (0.98 in): Days with 25 mm or more rain16619152
50 mm (1.97 in): Days with 50 mm or more rain7319211
100 mm (3.94 in): Days with 100 mm or more rain1119181

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1915.

Download the Data

  • Data for Dirk Hartog 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 (2025-12-31).