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

Grassdale Threshold Days by Year

3 fixed thresholds counted per year at Grassdale (ASN00090097): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Grassdale Thresholds

  • Grassdale: days with 10 mm (0.39 in) or more of precipitation in 33 years, most in 1960 with 34.
  • Grassdale: days with 25 mm (0.98 in) or more of precipitation in 28 years, most in 1964 with 5.
  • Grassdale: days with 50 mm (1.97 in) or more of precipitation in 6 years, most in 1957 with 1.
  • 3 fixed thresholds have at least one qualifying day at Grassdale.
33 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Grassdale Days per year at Grassdale with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 34 in 1960. 0102030401954: 141955: 251956: 281957: 221958: 191959: 131960: 341961: 161962: 191963: 201964: 321965: 211966: 131967: 111968: 231969: 181970: 231971: 281973: 211974: 151975: 291976: 201977: 201978: 201979: 141980: 181981: 201982: 71984: 191989: 161990: 171991: 201992: 28195419581962196619701975197919841992
Days per year at Grassdale with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 34 in 1960.
Days with 10 mm (0.39 in) or more of precipitation per year at Grassdale
YearDaysDecade average
19541420.2
19552520.2
19562820.2
19572220.2
19581920.2
19591320.2
19603420.7
19611620.7
19621920.7
19632020.7
19643220.7
19652120.7
19661320.7
19671120.7
19682320.7
19691820.7
19702321.1
19712821.1
19732121.1
19741521.1
19752921.1
19762021.1
19772021.1
19782021.1
19791421.1
19801816
19812016
1982716
19841916
19891616
19901721.7
19912021.7
19922821.7
First to last qualifying date each year at Grassdale For each year, a bar from the first to the last day at Grassdale meeting 10 mm (0.39 in). 1954: 28 January 1954 to 12 December 19541955: 10 February 1955 to 31 December 19551956: 3 March 1956 to 13 December 19561957: 7 February 1957 to 26 December 19571958: 30 January 1958 to 14 November 19581959: 25 January 1959 to 26 December 19591960: 4 January 1960 to 22 November 19601961: 7 April 1961 to 1 November 19611962: 14 February 1962 to 11 December 19621963: 13 January 1963 to 28 October 19631964: 7 February 1964 to 9 December 19641965: 12 March 1965 to 7 December 19651966: 14 February 1966 to 23 September 19661967: 13 January 1967 to 30 December 19671968: 29 March 1968 to 6 November 19681969: 10 February 1969 to 2 December 19691970: 3 January 1970 to 31 December 19701971: 15 March 1971 to 31 December 19711973: 31 January 1973 to 30 December 19731974: 14 January 1974 to 12 December 19741975: 11 January 1975 to 23 November 19751976: 9 February 1976 to 23 December 19761977: 14 January 1977 to 27 December 19771978: 10 April 1978 to 4 December 19781979: 28 May 1979 to 29 December 19791980: 22 April 1980 to 18 November 19801981: 27 January 1981 to 10 November 19811982: 6 January 1982 to 18 November 19821984: 25 March 1984 to 14 December 19841989: 7 February 1989 to 27 October 19891990: 2 February 1990 to 20 December 19901991: 4 January 1991 to 4 November 19911992: 6 February 1992 to 22 December 19921954195919641969197519801990JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Grassdale meeting 10 mm (0.39 in).
First to last qualifying date each year at Grassdale
YearFirst dateLast date
19541954-01-281954-12-12
19551955-02-101955-12-31
19561956-03-031956-12-13
19571957-02-071957-12-26
19581958-01-301958-11-14
19591959-01-251959-12-26
19601960-01-041960-11-22
19611961-04-071961-11-01
19621962-02-141962-12-11
19631963-01-131963-10-28
19641964-02-071964-12-09
19651965-03-121965-12-07
19661966-02-141966-09-23
19671967-01-131967-12-30
19681968-03-291968-11-06
19691969-02-101969-12-02
19701970-01-031970-12-31
19711971-03-151971-12-31
19731973-01-311973-12-30
19741974-01-141974-12-12
19751975-01-111975-11-23
19761976-02-091976-12-23
19771977-01-141977-12-27
19781978-04-101978-12-04
19791979-05-281979-12-29
19801980-04-221980-11-18
19811981-01-271981-11-10
19821982-01-061982-11-18
19841984-03-251984-12-14
19891989-02-071989-10-27
19901990-02-021990-12-20
19911991-01-041991-11-04
19921992-02-061992-12-22

Every Fixed Threshold

Fixed thresholds at Grassdale
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3334196028
25 mm (0.98 in): Days with 25 mm or more rain28519645
50 mm (1.97 in): Days with 50 mm or more rain6119571

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1954.

Download the Data

  • Data for Grassdale 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

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