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Data as of 2025-12-31
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Built 2026-10-17 (17 October 2026)

Bonnie Doon Threshold Days by Year

3 fixed thresholds counted per year at Bonnie Doon (ASN00012173): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bonnie Doon Thresholds

  • Bonnie Doon: days with 10 mm (0.39 in) or more of precipitation in 18 years, most in 1938 with 20.
  • Bonnie Doon: days with 25 mm (0.98 in) or more of precipitation in 14 years, most in 1923 with 4.
  • Bonnie Doon: days with 50 mm (1.97 in) or more of precipitation in 1 years, most in 1921 with 1.
  • 3 fixed thresholds have at least one qualifying day at Bonnie Doon.
18 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Bonnie Doon Days per year at Bonnie Doon with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 20 in 1938. 051015201921: 111922: 131923: 131924: 111925: 101926: 131927: 81928: 61929: 101930: 131931: 111932: 151933: 121934: 131935: 81936: 101937: 111938: 20192119231925192719291931193319351937
Days per year at Bonnie Doon with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 20 in 1938.
Days with 10 mm (0.39 in) or more of precipitation per year at Bonnie Doon
YearDaysDecade average
19211110.6
19221310.6
19231310.6
19241110.6
19251010.6
19261310.6
1927810.6
1928610.6
19291010.6
19301312.6
19311112.6
19321512.6
19331212.6
19341312.6
1935812.6
19361012.6
19371112.6
19382012.6
First to last qualifying date each year at Bonnie Doon For each year, a bar from the first to the last day at Bonnie Doon meeting 10 mm (0.39 in). 1921: 14 February 1921 to 28 December 19211922: 16 April 1922 to 15 December 19221923: 26 April 1923 to 17 December 19231924: 22 March 1924 to 27 October 19241925: 17 February 1925 to 16 October 19251926: 7 February 1926 to 22 October 19261927: 4 January 1927 to 31 October 19271928: 29 April 1928 to 3 November 19281929: 3 January 1929 to 26 December 19291930: 12 March 1930 to 17 December 19301931: 25 February 1931 to 4 November 19311932: 28 March 1932 to 21 November 19321933: 27 March 1933 to 15 November 19331934: 12 March 1934 to 6 November 19341935: 7 February 1935 to 16 September 19351936: 19 January 1936 to 23 August 19361937: 22 April 1937 to 13 November 19371938: 17 January 1938 to 2 November 1938192119241927193019331936JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Bonnie Doon meeting 10 mm (0.39 in).
First to last qualifying date each year at Bonnie Doon
YearFirst dateLast date
19211921-02-141921-12-28
19221922-04-161922-12-15
19231923-04-261923-12-17
19241924-03-221924-10-27
19251925-02-171925-10-16
19261926-02-071926-10-22
19271927-01-041927-10-31
19281928-04-291928-11-03
19291929-01-031929-12-26
19301930-03-121930-12-17
19311931-02-251931-11-04
19321932-03-281932-11-21
19331933-03-271933-11-15
19341934-03-121934-11-06
19351935-02-071935-09-16
19361936-01-191936-08-23
19371937-04-221937-11-13
19381938-01-171938-11-02

Every Fixed Threshold

Fixed thresholds at Bonnie Doon
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain1820193820
25 mm (0.98 in): Days with 25 mm or more rain14419231
50 mm (1.97 in): Days with 50 mm or more rain1119211

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1921.

Download the Data

  • Data for Bonnie Doon 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).