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

Ono Threshold Days by Year (USC00046455)

5 fixed thresholds counted per year at Ono (USC00046455): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ono Thresholds

  • Ono: days with 10 mm (0.39 in) or more of precipitation in 24 years, most in 1983 with 71.
  • Ono: days with 25 mm (0.98 in) or more of precipitation in 24 years, most in 1983 with 25.
  • Ono: days with 50 mm (1.97 in) or more of precipitation in 24 years, most in 1983 with 8.
  • Ono: days with 100 mm (3.94 in) or more of precipitation in 5 years, most in 1955 with 1.
  • 5 fixed thresholds have at least one qualifying day at Ono.
24 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Ono Days per year at Ono with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 71 in 1983. 0204060801952: 391953: 301954: 341955: 241956: 181957: 411958: 401959: 201960: 351961: 301962: 251963: 321964: 271965: 261966: 231967: 351968: 301969: 311975: 321976: 131977: 231978: 331979: 291983: 7119521955195819611964196719751978
Days per year at Ono with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 71 in 1983.
Days with 10 mm (0.39 in) or more of precipitation per year at Ono
YearDaysDecade average
19523930.8
19533030.8
19543430.8
19552430.8
19561830.8
19574130.8
19584030.8
19592030.8
19603529.4
19613029.4
19622529.4
19633229.4
19642729.4
19652629.4
19662329.4
19673529.4
19683029.4
19693129.4
19753226
19761326
19772326
19783326
19792926
19837171
First to last qualifying date each year at Ono For each year, a bar from the first to the last day at Ono meeting 10 mm (0.39 in). 1952: 6 January 1952 to 30 December 19521953: 1 January 1953 to 19 December 19531954: 16 January 1954 to 31 December 19541955: 18 January 1955 to 23 December 19551956: 1 January 1956 to 30 October 19561957: 12 January 1957 to 29 December 19571958: 2 January 1958 to 27 December 19581959: 5 January 1959 to 24 December 19591960: 14 January 1960 to 18 December 19601961: 26 January 1961 to 20 December 19611962: 19 January 1962 to 17 December 19621963: 30 January 1963 to 21 December 19631964: 18 January 1964 to 27 December 19641965: 3 January 1965 to 25 November 19651966: 4 January 1966 to 14 December 19661967: 20 January 1967 to 18 December 19671968: 10 January 1968 to 28 December 19681969: 11 January 1969 to 24 December 19691975: 6 January 1975 to 6 December 19751976: 15 February 1976 to 14 November 19761977: 3 January 1977 to 27 December 19771978: 2 January 1978 to 21 November 19781979: 8 January 1979 to 24 November 19791983: 18 January 1983 to 30 December 198319521955195819611964196719751978JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ono meeting 10 mm (0.39 in).
First to last qualifying date each year at Ono
YearFirst dateLast date
19521952-01-061952-12-30
19531953-01-011953-12-19
19541954-01-161954-12-31
19551955-01-181955-12-23
19561956-01-011956-10-30
19571957-01-121957-12-29
19581958-01-021958-12-27
19591959-01-051959-12-24
19601960-01-141960-12-18
19611961-01-261961-12-20
19621962-01-191962-12-17
19631963-01-301963-12-21
19641964-01-181964-12-27
19651965-01-031965-11-25
19661966-01-041966-12-14
19671967-01-201967-12-18
19681968-01-101968-12-28
19691969-01-111969-12-24
19751975-01-061975-12-06
19761976-02-151976-11-14
19771977-01-031977-12-27
19781978-01-021978-11-21
19791979-01-081979-11-24
19831983-01-181983-12-30

Every Fixed Threshold

Fixed thresholds at Ono
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2471198371
25 mm (0.98 in): Days with 25 mm or more rain2425198325
50 mm (1.97 in): Days with 50 mm or more rain24819838
100 mm (3.94 in): Days with 100 mm or more rain5119551
10 cm (3.9 in): Days with 10 cm or more snowfall5119521

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1952.

Download the Data

  • Data for Ono 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).