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Built 2026-10-17 (17 October 2026)

Boisdale Threshold Days by Year

4 fixed thresholds counted per year at Boisdale (ASN00085012): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Boisdale Thresholds

  • Boisdale: days with 10 mm (0.39 in) or more of precipitation in 37 years, most in 1887 with 27.
  • Boisdale: days with 25 mm (0.98 in) or more of precipitation in 37 years, most in 1919 with 9.
  • Boisdale: days with 50 mm (1.97 in) or more of precipitation in 24 years, most in 1916 with 3.
  • Boisdale: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1891 with 1.
  • 4 fixed thresholds have at least one qualifying day at Boisdale.
37 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Boisdale Days per year at Boisdale with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 27 in 1887. 01020301886: 191887: 271888: 141889: 191890: 241891: 231907: 141908: 101909: 211910: 211911: 261912: 161913: 171914: 121915: 81916: 231917: 131919: 141922: 151923: 161924: 241925: 141926: 161927: 111928: 131929: 111930: 191931: 151936: 171937: 111938: 91939: 171942: 131943: 121944: 111945: 151953: 161886189019091913191719241928193619421953
Days per year at Boisdale with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 27 in 1887.
Days with 10 mm (0.39 in) or more of precipitation per year at Boisdale
YearDaysDecade average
18861919.8
18872719.8
18881419.8
18891919.8
18902423.5
18912323.5
19071415
19081015
19092115
19102116.7
19112616.7
19121616.7
19131716.7
19141216.7
1915816.7
19162316.7
19171316.7
19191416.7
19221515
19231615
19242415
19251415
19261615
19271115
19281315
19291115
19301914.7
19311514.7
19361714.7
19371114.7
1938914.7
19391714.7
19421312.8
19431212.8
19441112.8
19451512.8
19531616
First to last qualifying date each year at Boisdale For each year, a bar from the first to the last day at Boisdale meeting 10 mm (0.39 in). 1886: 7 January 1886 to 27 December 18861887: 18 January 1887 to 23 December 18871888: 3 January 1888 to 29 December 18881889: 3 January 1889 to 21 December 18891890: 28 January 1890 to 23 December 18901891: 5 January 1891 to 6 December 18911907: 7 February 1907 to 28 December 19071908: 10 January 1908 to 27 November 19081909: 5 January 1909 to 23 December 19091910: 14 January 1910 to 16 December 19101911: 13 January 1911 to 22 December 19111912: 6 January 1912 to 6 December 19121913: 3 January 1913 to 13 November 19131914: 26 January 1914 to 31 December 19141915: 7 January 1915 to 23 October 19151916: 29 January 1916 to 15 December 19161917: 13 January 1917 to 24 November 19171919: 18 February 1919 to 20 November 19191922: 22 February 1922 to 30 December 19221923: 18 January 1923 to 26 December 19231924: 3 January 1924 to 26 December 19241925: 13 January 1925 to 19 November 19251926: 8 January 1926 to 22 December 19261927: 27 January 1927 to 10 December 19271928: 27 January 1928 to 22 June 19281929: 15 February 1929 to 15 November 19291930: 20 February 1930 to 25 December 19301931: 26 January 1931 to 16 November 19311936: 15 February 1936 to 15 December 19361937: 2 March 1937 to 18 October 19371938: 28 January 1938 to 1 November 19381939: 26 February 1939 to 24 November 19391942: 20 February 1942 to 1 December 19421943: 23 January 1943 to 6 December 19431944: 2 January 1944 to 16 October 19441945: 11 January 1945 to 20 November 19451953: 6 January 1953 to 23 November 195318861891191119161924192919381945JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Boisdale meeting 10 mm (0.39 in).
First to last qualifying date each year at Boisdale
YearFirst dateLast date
18861886-01-071886-12-27
18871887-01-181887-12-23
18881888-01-031888-12-29
18891889-01-031889-12-21
18901890-01-281890-12-23
18911891-01-051891-12-06
19071907-02-071907-12-28
19081908-01-101908-11-27
19091909-01-051909-12-23
19101910-01-141910-12-16
19111911-01-131911-12-22
19121912-01-061912-12-06
19131913-01-031913-11-13
19141914-01-261914-12-31
19151915-01-071915-10-23
19161916-01-291916-12-15
19171917-01-131917-11-24
19191919-02-181919-11-20
19221922-02-221922-12-30
19231923-01-181923-12-26
19241924-01-031924-12-26
19251925-01-131925-11-19
19261926-01-081926-12-22
19271927-01-271927-12-10
19281928-01-271928-06-22
19291929-02-151929-11-15
19301930-02-201930-12-25
19311931-01-261931-11-16
19361936-02-151936-12-15
19371937-03-021937-10-18
19381938-01-281938-11-01
19391939-02-261939-11-24
19421942-02-201942-12-01
19431943-01-231943-12-06
19441944-01-021944-10-16
19451945-01-111945-11-20
19531953-01-061953-11-23

Every Fixed Threshold

Fixed thresholds at Boisdale
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3727188716
25 mm (0.98 in): Days with 25 mm or more rain37919196
50 mm (1.97 in): Days with 50 mm or more rain24319161
100 mm (3.94 in): Days with 100 mm or more rain2118911

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1886.

Download the Data

  • Data for Boisdale 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 2026-10-15 (15 October 2026). Threshold counts are computed by this site.

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