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Built 2026-10-17 (17 October 2026)

Grosvenor Downs Threshold Days by Year

4 fixed thresholds counted per year at Grosvenor Downs (ASN00034014): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Grosvenor Downs Thresholds

  • Grosvenor Downs: days with 10 mm (0.39 in) or more of precipitation in 26 years, most in 1890 with 37.
  • Grosvenor Downs: days with 25 mm (0.98 in) or more of precipitation in 26 years, most in 1890 with 16.
  • Grosvenor Downs: days with 50 mm (1.97 in) or more of precipitation in 22 years, most in 1890 with 7.
  • Grosvenor Downs: days with 100 mm (3.94 in) or more of precipitation in 6 years, most in 1890 with 2.
  • 4 fixed thresholds have at least one qualifying day at Grosvenor Downs.
26 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Grosvenor Downs Days per year at Grosvenor Downs with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 37 in 1890. 0102030401889: 221890: 371892: 111893: 191894: 261895: 221896: 191897: 191898: 241899: 221900: 141902: 111903: 221904: 201905: 101962: 141963: 211964: 131965: 131966: 161967: 181968: 191969: 111970: 151971: 221972: 13188918931896189919031962196519681971
Days per year at Grosvenor Downs with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 37 in 1890.
Days with 10 mm (0.39 in) or more of precipitation per year at Grosvenor Downs
YearDaysDecade average
18892222
18903722.1
18921122.1
18931922.1
18942622.1
18952222.1
18961922.1
18971922.1
18982422.1
18992222.1
19001415.4
19021115.4
19032215.4
19042015.4
19051015.4
19621415.6
19632115.6
19641315.6
19651315.6
19661615.6
19671815.6
19681915.6
19691115.6
19701516.7
19712216.7
19721316.7
First to last qualifying date each year at Grosvenor Downs For each year, a bar from the first to the last day at Grosvenor Downs meeting 10 mm (0.39 in). 1889: 13 February 1889 to 9 December 18891890: 7 January 1890 to 24 December 18901892: 15 January 1892 to 20 December 18921893: 4 February 1893 to 23 December 18931894: 9 January 1894 to 11 December 18941895: 1 January 1895 to 24 December 18951896: 28 January 1896 to 20 December 18961897: 9 January 1897 to 21 December 18971898: 1 January 1898 to 21 December 18981899: 5 January 1899 to 26 December 18991900: 11 January 1900 to 23 December 19001902: 24 January 1902 to 18 December 19021903: 23 January 1903 to 15 December 19031904: 4 January 1904 to 18 December 19041905: 13 January 1905 to 1 December 19051962: 5 January 1962 to 30 December 19621963: 9 January 1963 to 1 December 19631964: 1 January 1964 to 22 November 19641965: 6 January 1965 to 15 December 19651966: 24 January 1966 to 17 December 19661967: 5 January 1967 to 22 December 19671968: 2 January 1968 to 27 December 19681969: 28 May 1969 to 25 December 19691970: 19 January 1970 to 27 December 19701971: 23 January 1971 to 27 December 19711972: 10 January 1972 to 30 December 19721889189418981903196319671971JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Grosvenor Downs meeting 10 mm (0.39 in).
First to last qualifying date each year at Grosvenor Downs
YearFirst dateLast date
18891889-02-131889-12-09
18901890-01-071890-12-24
18921892-01-151892-12-20
18931893-02-041893-12-23
18941894-01-091894-12-11
18951895-01-011895-12-24
18961896-01-281896-12-20
18971897-01-091897-12-21
18981898-01-011898-12-21
18991899-01-051899-12-26
19001900-01-111900-12-23
19021902-01-241902-12-18
19031903-01-231903-12-15
19041904-01-041904-12-18
19051905-01-131905-12-01
19621962-01-051962-12-30
19631963-01-091963-12-01
19641964-01-011964-11-22
19651965-01-061965-12-15
19661966-01-241966-12-17
19671967-01-051967-12-22
19681968-01-021968-12-27
19691969-05-281969-12-25
19701970-01-191970-12-27
19711971-01-231971-12-27
19721972-01-101972-12-30

Every Fixed Threshold

Fixed thresholds at Grosvenor Downs
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2637189013
25 mm (0.98 in): Days with 25 mm or more rain261618906
50 mm (1.97 in): Days with 50 mm or more rain22718902
100 mm (3.94 in): Days with 100 mm or more rain6218901

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1889.

Download the Data

  • Data for Grosvenor Downs 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).