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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Gretna (Allan Vale) Threshold Days by Year (ASN00095000)

3 fixed thresholds counted per year at Gretna (Allan Vale) (ASN00095000): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Gretna (Allan Vale) Thresholds

  • Gretna (Allan Vale): days with 10 mm (0.39 in) or more of precipitation in 27 years, most in 1947 with 31.
  • Gretna (Allan Vale): days with 25 mm (0.98 in) or more of precipitation in 26 years, most in 1958 with 10.
  • Gretna (Allan Vale): days with 50 mm (1.97 in) or more of precipitation in 6 years, most in 1946 with 2.
  • 3 fixed thresholds have at least one qualifying day at Gretna (Allan Vale).
27 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Gretna (Allan Vale) Days per year at Gretna (Allan Vale) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 31 in 1947. 0102030401942: 211943: 161944: 231945: 81946: 201947: 311948: 211949: 141950: 171951: 221952: 281953: 221954: 151955: 151956: 291957: 171958: 281959: 171960: 191961: 91964: 191965: 81966: 171967: 131968: 161969: 181970: 21194219451948195119541957196019651968
Days per year at Gretna (Allan Vale) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 31 in 1947.
Days with 10 mm (0.39 in) or more of precipitation per year at Gretna (Allan Vale)
YearDaysDecade average
19422119.3
19431619.3
19442319.3
1945819.3
19462019.3
19473119.3
19482119.3
19491419.3
19501721
19512221
19522821
19532221
19541521
19551521
19562921
19571721
19582821
19591721
19601914.9
1961914.9
19641914.9
1965814.9
19661714.9
19671314.9
19681614.9
19691814.9
19702121
First to last qualifying date each year at Gretna (Allan Vale) For each year, a bar from the first to the last day at Gretna (Allan Vale) meeting 10 mm (0.39 in). 1942: 20 January 1942 to 24 December 19421943: 17 January 1943 to 4 December 19431944: 3 January 1944 to 21 December 19441945: 16 January 1945 to 27 December 19451946: 4 February 1946 to 29 December 19461947: 17 February 1947 to 26 December 19471948: 6 January 1948 to 26 December 19481949: 4 January 1949 to 12 November 19491950: 15 January 1950 to 30 December 19501951: 8 January 1951 to 18 December 19511952: 7 January 1952 to 28 December 19521953: 28 February 1953 to 8 December 19531954: 28 January 1954 to 11 December 19541955: 5 March 1955 to 31 December 19551956: 1 January 1956 to 22 December 19561957: 25 January 1957 to 2 December 19571958: 1 February 1958 to 17 December 19581959: 7 January 1959 to 26 December 19591960: 23 January 1960 to 1 November 19601961: 23 February 1961 to 12 October 19611964: 10 January 1964 to 24 December 19641965: 14 March 1965 to 12 November 19651966: 4 February 1966 to 19 December 19661967: 29 April 1967 to 19 December 19671968: 20 January 1968 to 24 December 19681969: 26 January 1969 to 13 December 19691970: 3 January 1970 to 31 December 19701942194619501954195819641968JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Gretna (Allan Vale) meeting 10 mm (0.39 in).
First to last qualifying date each year at Gretna (Allan Vale)
YearFirst dateLast date
19421942-01-201942-12-24
19431943-01-171943-12-04
19441944-01-031944-12-21
19451945-01-161945-12-27
19461946-02-041946-12-29
19471947-02-171947-12-26
19481948-01-061948-12-26
19491949-01-041949-11-12
19501950-01-151950-12-30
19511951-01-081951-12-18
19521952-01-071952-12-28
19531953-02-281953-12-08
19541954-01-281954-12-11
19551955-03-051955-12-31
19561956-01-011956-12-22
19571957-01-251957-12-02
19581958-02-011958-12-17
19591959-01-071959-12-26
19601960-01-231960-11-01
19611961-02-231961-10-12
19641964-01-101964-12-24
19651965-03-141965-11-12
19661966-02-041966-12-19
19671967-04-291967-12-19
19681968-01-201968-12-24
19691969-01-261969-12-13
19701970-01-031970-12-31

Every Fixed Threshold

Fixed thresholds at Gretna (Allan Vale)
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2731194721
25 mm (0.98 in): Days with 25 mm or more rain261019585
50 mm (1.97 in): Days with 50 mm or more rain6219461

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1942.

Download the Data

  • Data for Gretna (Allan Vale) 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).