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

Boolaloo Threshold Days by Year

4 fixed thresholds counted per year at Boolaloo (ASN00005000): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Boolaloo Thresholds

  • Boolaloo: days with 10 mm (0.39 in) or more of precipitation in 35 years, most in 1918 with 17.
  • Boolaloo: days with 25 mm (0.98 in) or more of precipitation in 27 years, most in 1942 with 7.
  • Boolaloo: days with 50 mm (1.97 in) or more of precipitation in 14 years, most in 1942 with 5.
  • Boolaloo: days with 100 mm (3.94 in) or more of precipitation in 4 years, most in 1916 with 1.
  • 4 fixed thresholds have at least one qualifying day at Boolaloo.
35 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Boolaloo Days per year at Boolaloo with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 17 in 1918. 051015201912: 21913: 91914: 41915: 141916: 81917: 91918: 171919: 11920: 61921: 81922: 41923: 81924: 21925: 61926: 51927: 81928: 31929: 121931: 131932: 71933: 111934: 101935: 51937: 61938: 31939: 71940: 31941: 81942: 131943: 71944: 11946: 121947: 81948: 41949: 14191219161920192419281933193819421947
Days per year at Boolaloo with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 17 in 1918.
Days with 10 mm (0.39 in) or more of precipitation per year at Boolaloo
YearDaysDecade average
191228
191398
191448
1915148
191688
191798
1918178
191918
192066.2
192186.2
192246.2
192386.2
192426.2
192566.2
192656.2
192786.2
192836.2
1929126.2
1931137.8
193277.8
1933117.8
1934107.8
193557.8
193767.8
193837.8
193977.8
194037.8
194187.8
1942137.8
194377.8
194417.8
1946127.8
194787.8
194847.8
1949147.8
First to last qualifying date each year at Boolaloo For each year, a bar from the first to the last day at Boolaloo meeting 10 mm (0.39 in). 1912: 18 January 1912 to 8 July 19121913: 23 January 1913 to 23 July 19131914: 22 January 1914 to 10 November 19141915: 7 January 1915 to 17 June 19151916: 16 February 1916 to 27 October 19161917: 25 January 1917 to 28 June 19171918: 9 January 1918 to 18 June 19181919: 15 December 1919 to 15 December 19191920: 23 January 1920 to 4 June 19201921: 2 February 1921 to 8 August 19211922: 8 February 1922 to 28 May 19221923: 10 January 1923 to 26 June 19231924: 8 May 1924 to 8 June 19241925: 17 January 1925 to 28 December 19251926: 3 February 1926 to 12 December 19261927: 27 February 1927 to 20 December 19271928: 8 February 1928 to 13 June 19281929: 12 February 1929 to 30 May 19291931: 17 January 1931 to 12 October 19311932: 24 January 1932 to 16 December 19321933: 3 March 1933 to 31 December 19331934: 13 January 1934 to 28 March 19341935: 30 January 1935 to 29 March 19351937: 11 January 1937 to 22 June 19371938: 13 January 1938 to 31 December 19381939: 12 January 1939 to 10 November 19391940: 24 January 1940 to 10 August 19401941: 1 January 1941 to 4 December 19411942: 24 January 1942 to 10 June 19421943: 29 January 1943 to 22 November 19431944: 5 April 1944 to 5 April 19441946: 1 January 1946 to 8 July 19461947: 19 February 1947 to 26 October 19471948: 27 January 1948 to 22 February 19481949: 21 January 1949 to 10 December 19491912191719221927193319391944JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Boolaloo meeting 10 mm (0.39 in).
First to last qualifying date each year at Boolaloo
YearFirst dateLast date
19121912-01-181912-07-08
19131913-01-231913-07-23
19141914-01-221914-11-10
19151915-01-071915-06-17
19161916-02-161916-10-27
19171917-01-251917-06-28
19181918-01-091918-06-18
19191919-12-151919-12-15
19201920-01-231920-06-04
19211921-02-021921-08-08
19221922-02-081922-05-28
19231923-01-101923-06-26
19241924-05-081924-06-08
19251925-01-171925-12-28
19261926-02-031926-12-12
19271927-02-271927-12-20
19281928-02-081928-06-13
19291929-02-121929-05-30
19311931-01-171931-10-12
19321932-01-241932-12-16
19331933-03-031933-12-31
19341934-01-131934-03-28
19351935-01-301935-03-29
19371937-01-111937-06-22
19381938-01-131938-12-31
19391939-01-121939-11-10
19401940-01-241940-08-10
19411941-01-011941-12-04
19421942-01-241942-06-10
19431943-01-291943-11-22
19441944-04-051944-04-05
19461946-01-011946-07-08
19471947-02-191947-10-26
19481948-01-271948-02-22
19491949-01-211949-12-10

Every Fixed Threshold

Fixed thresholds at Boolaloo
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3517191814
25 mm (0.98 in): Days with 25 mm or more rain27719423
50 mm (1.97 in): Days with 50 mm or more rain14519423
100 mm (3.94 in): Days with 100 mm or more rain4119161

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1912.

Download the Data

  • Data for Boolaloo 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).