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Data as of 2025-12-31
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Built 2026-10-18 (18 October 2026)

Rose Isle Threshold Days by Year

4 fixed thresholds counted per year at Rose Isle (ASN00048069): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Rose Isle Thresholds

  • Rose Isle: days with 10 mm (0.39 in) or more of precipitation in 60 years, most in 1936 with 20.
  • Rose Isle: days with 25 mm (0.98 in) or more of precipitation in 53 years, most in 1936 with 8.
  • Rose Isle: days with 50 mm (1.97 in) or more of precipitation in 21 years, most in 1896 with 3.
  • Rose Isle: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1893 with 1.
  • 4 fixed thresholds have at least one qualifying day at Rose Isle.
60 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Rose Isle Days per year at Rose Isle with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 20 in 1936. 051015201893: 101894: 161895: 61896: 141897: 111898: 71899: 71900: 71901: 31902: 51903: 101904: 101905: 91906: 161907: 131908: 111909: 131910: 121911: 181912: 61913: 91914: 41915: 41916: 141917: 121918: 81919: 31920: 121921: 101922: 31926: 101927: 51928: 111929: 11930: 41936: 201937: 41938: 71941: 121942: 91943: 61944: 51946: 41947: 101948: 71953: 61954: 131958: 61960: 121961: 81962: 171963: 91965: 31966: 51967: 41968: 91969: 111970: 101971: 111972: 41893189919051911191719261937194619601967
Days per year at Rose Isle with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 20 in 1936.
Days with 10 mm (0.39 in) or more of precipitation per year at Rose Isle
YearDaysDecade average
18931010.1
18941610.1
1895610.1
18961410.1
18971110.1
1898710.1
1899710.1
190079.7
190139.7
190259.7
1903109.7
1904109.7
190599.7
1906169.7
1907139.7
1908119.7
1909139.7
1910129
1911189
191269
191399
191449
191549
1916149
1917129
191889
191939
1920127.4
1921107.4
192237.4
1926107.4
192757.4
1928117.4
192917.4
193048.8
1936208.8
193748.8
193878.8
1941127.6
194297.6
194367.6
194457.6
194647.6
1947107.6
194877.6
195368.3
1954138.3
195868.3
1960128.7
196188.7
1962178.7
196398.7
196538.7
196658.7
196748.7
196898.7
1969118.7
1970108.3
1971118.3
197248.3
First to last qualifying date each year at Rose Isle For each year, a bar from the first to the last day at Rose Isle meeting 10 mm (0.39 in). 1893: 2 March 1893 to 21 November 18931894: 21 March 1894 to 28 December 18941895: 17 February 1895 to 3 November 18951896: 8 February 1896 to 2 December 18961897: 9 January 1897 to 22 September 18971898: 12 February 1898 to 21 October 18981899: 19 January 1899 to 15 October 18991900: 20 January 1900 to 31 July 19001901: 6 July 1901 to 26 August 19011902: 27 January 1902 to 6 December 19021903: 27 January 1903 to 26 December 19031904: 2 January 1904 to 17 December 19041905: 28 March 1905 to 22 September 19051906: 27 February 1906 to 28 November 19061907: 9 January 1907 to 28 December 19071908: 25 January 1908 to 12 December 19081909: 20 January 1909 to 26 December 19091910: 11 January 1910 to 13 December 19101911: 28 January 1911 to 5 December 19111912: 10 March 1912 to 18 November 19121913: 6 February 1913 to 17 December 19131914: 26 February 1914 to 21 December 19141915: 15 May 1915 to 24 July 19151916: 28 January 1916 to 8 December 19161917: 13 January 1917 to 1 December 19171918: 12 January 1918 to 25 November 19181919: 17 February 1919 to 25 August 19191920: 1 June 1920 to 28 December 19201921: 20 February 1921 to 26 December 19211922: 2 December 1922 to 4 December 19221926: 3 January 1926 to 18 September 19261927: 1 August 1927 to 8 December 19271928: 1 February 1928 to 11 October 19281929: 29 September 1929 to 29 September 19291930: 8 May 1930 to 2 June 19301936: 6 January 1936 to 19 December 19361937: 11 February 1937 to 12 June 19371938: 17 January 1938 to 16 August 19381941: 2 January 1941 to 2 December 19411942: 14 February 1942 to 31 December 19421943: 8 January 1943 to 17 November 19431944: 14 February 1944 to 22 August 19441946: 18 January 1946 to 29 December 19461947: 15 February 1947 to 26 December 19471948: 10 February 1948 to 5 November 19481953: 6 January 1953 to 6 November 19531954: 16 January 1954 to 12 December 19541958: 29 January 1958 to 10 October 19581960: 8 January 1960 to 2 December 19601961: 20 April 1961 to 13 December 19611962: 11 January 1962 to 28 December 19621963: 12 January 1963 to 29 November 19631965: 10 February 1965 to 12 December 19651966: 5 May 1966 to 31 August 19661967: 11 January 1967 to 12 October 19671968: 12 January 1968 to 28 August 19681969: 21 January 1969 to 14 July 19691970: 15 March 1970 to 25 December 19701971: 29 January 1971 to 26 December 19711972: 13 January 1972 to 17 August 197218931901190919171928194319601969JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Rose Isle meeting 10 mm (0.39 in).
First to last qualifying date each year at Rose Isle
YearFirst dateLast date
18931893-03-021893-11-21
18941894-03-211894-12-28
18951895-02-171895-11-03
18961896-02-081896-12-02
18971897-01-091897-09-22
18981898-02-121898-10-21
18991899-01-191899-10-15
19001900-01-201900-07-31
19011901-07-061901-08-26
19021902-01-271902-12-06
19031903-01-271903-12-26
19041904-01-021904-12-17
19051905-03-281905-09-22
19061906-02-271906-11-28
19071907-01-091907-12-28
19081908-01-251908-12-12
19091909-01-201909-12-26
19101910-01-111910-12-13
19111911-01-281911-12-05
19121912-03-101912-11-18
19131913-02-061913-12-17
19141914-02-261914-12-21
19151915-05-151915-07-24
19161916-01-281916-12-08
19171917-01-131917-12-01
19181918-01-121918-11-25
19191919-02-171919-08-25
19201920-06-011920-12-28
19211921-02-201921-12-26
19221922-12-021922-12-04
19261926-01-031926-09-18
19271927-08-011927-12-08
19281928-02-011928-10-11
19291929-09-291929-09-29
19301930-05-081930-06-02
19361936-01-061936-12-19
19371937-02-111937-06-12
19381938-01-171938-08-16
19411941-01-021941-12-02
19421942-02-141942-12-31
19431943-01-081943-11-17
19441944-02-141944-08-22
19461946-01-181946-12-29
19471947-02-151947-12-26
19481948-02-101948-11-05
19531953-01-061953-11-06
19541954-01-161954-12-12
19581958-01-291958-10-10
19601960-01-081960-12-02
19611961-04-201961-12-13
19621962-01-111962-12-28
19631963-01-121963-11-29
19651965-02-101965-12-12
19661966-05-051966-08-31
19671967-01-111967-10-12
19681968-01-121968-08-28
19691969-01-211969-07-14
19701970-03-151970-12-25
19711971-01-291971-12-26
19721972-01-131972-08-17

Every Fixed Threshold

Fixed thresholds at Rose Isle
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain602019364
25 mm (0.98 in): Days with 25 mm or more rain53819362
50 mm (1.97 in): Days with 50 mm or more rain21318961
100 mm (3.94 in): Days with 100 mm or more rain2118931

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1893.

Download the Data

  • Data for Rose Isle 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

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