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Built 2026-10-19 (19 October 2026)

Ukumehame 301 Threshold Days by Year (USC00518750)

5 fixed thresholds counted per year at Ukumehame 301 (USC00518750): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ukumehame 301 Thresholds

  • Ukumehame 301: days with 10 mm (0.39 in) or more of precipitation in 48 years, most in 1968 with 26.
  • Ukumehame 301: days with 25 mm (0.98 in) or more of precipitation in 45 years, most in 1968 with 15.
  • Ukumehame 301: days with 50 mm (1.97 in) or more of precipitation in 37 years, most in 1967 with 5.
  • Ukumehame 301: days with 100 mm (3.94 in) or more of precipitation in 10 years, most in 1955 with 2.
  • 5 fixed thresholds have at least one qualifying day at Ukumehame 301.
48 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Ukumehame 301 Days per year at Ukumehame 301 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1968. 01020301943: 91944: 81945: 81946: 121947: 31948: 111949: 71950: 211951: 151952: 61953: 41954: 81955: 91956: 81957: 61958: 81959: 81960: 61961: 71962: 111963: 121964: 91965: 171966: 101967: 151968: 261969: 91970: 81971: 101972: 71974: 111975: 41976: 51977: 41978: 71979: 141980: 121981: 61982: 171983: 21984: 21985: 91986: 51987: 21988: 31989: 101993: 41995: 31943194819531958196319681974197919841989
Days per year at Ukumehame 301 with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 26 in 1968.
Days with 10 mm (0.39 in) or more of precipitation per year at Ukumehame 301
YearDaysDecade average
194398.3
194488.3
194588.3
1946128.3
194738.3
1948118.3
194978.3
1950219.3
1951159.3
195269.3
195349.3
195489.3
195599.3
195689.3
195769.3
195889.3
195989.3
1960612.2
1961712.2
19621112.2
19631212.2
1964912.2
19651712.2
19661012.2
19671512.2
19682612.2
1969912.2
197087.8
1971107.8
197277.8
1974117.8
197547.8
197657.8
197747.8
197877.8
1979147.8
1980126.8
198166.8
1982176.8
198326.8
198426.8
198596.8
198656.8
198726.8
198836.8
1989106.8
199343.5
199533.5
First to last qualifying date each year at Ukumehame 301 For each year, a bar from the first to the last day at Ukumehame 301 meeting 10 mm (0.39 in). 1943: 4 January 1943 to 5 December 19431944: 4 March 1944 to 27 December 19441945: 7 April 1945 to 8 December 19451946: 26 January 1946 to 25 December 19461947: 26 October 1947 to 19 December 19471948: 24 January 1948 to 24 December 19481949: 8 January 1949 to 19 December 19491950: 10 January 1950 to 30 December 19501951: 22 January 1951 to 14 December 19511952: 1 January 1952 to 5 December 19521953: 5 March 1953 to 28 December 19531954: 5 January 1954 to 17 December 19541955: 23 February 1955 to 22 December 19551956: 12 January 1956 to 7 December 19561957: 25 January 1957 to 7 December 19571958: 31 January 1958 to 30 December 19581959: 9 January 1959 to 1 November 19591960: 29 January 1960 to 5 December 19601961: 2 January 1961 to 3 November 19611962: 8 January 1962 to 18 December 19621963: 7 January 1963 to 17 September 19631964: 8 January 1964 to 20 December 19641965: 5 January 1965 to 7 December 19651966: 8 February 1966 to 19 December 19661967: 12 January 1967 to 29 December 19671968: 17 January 1968 to 30 December 19681969: 3 January 1969 to 28 December 19691970: 7 January 1970 to 27 November 19701971: 5 January 1971 to 22 March 19711972: 24 January 1972 to 1 September 19721974: 4 January 1974 to 17 November 19741975: 2 February 1975 to 25 November 19751976: 31 January 1976 to 5 March 19761977: 29 March 1977 to 7 December 19771978: 1 March 1978 to 5 December 19781979: 12 January 1979 to 23 April 19791980: 8 January 1980 to 26 December 19801981: 6 February 1981 to 28 December 19811982: 5 January 1982 to 24 November 19821983: 16 December 1983 to 27 December 19831984: 2 March 1984 to 27 November 19841985: 30 January 1985 to 2 December 19851986: 15 February 1986 to 12 November 19861987: 22 April 1987 to 6 May 19871988: 5 January 1988 to 16 December 19881989: 3 February 1989 to 1 December 19891993: 5 January 1993 to 4 November 19931995: 15 February 1995 to 7 December 199519431949195519611967197419801986JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ukumehame 301 meeting 10 mm (0.39 in).
First to last qualifying date each year at Ukumehame 301
YearFirst dateLast date
19431943-01-041943-12-05
19441944-03-041944-12-27
19451945-04-071945-12-08
19461946-01-261946-12-25
19471947-10-261947-12-19
19481948-01-241948-12-24
19491949-01-081949-12-19
19501950-01-101950-12-30
19511951-01-221951-12-14
19521952-01-011952-12-05
19531953-03-051953-12-28
19541954-01-051954-12-17
19551955-02-231955-12-22
19561956-01-121956-12-07
19571957-01-251957-12-07
19581958-01-311958-12-30
19591959-01-091959-11-01
19601960-01-291960-12-05
19611961-01-021961-11-03
19621962-01-081962-12-18
19631963-01-071963-09-17
19641964-01-081964-12-20
19651965-01-051965-12-07
19661966-02-081966-12-19
19671967-01-121967-12-29
19681968-01-171968-12-30
19691969-01-031969-12-28
19701970-01-071970-11-27
19711971-01-051971-03-22
19721972-01-241972-09-01
19741974-01-041974-11-17
19751975-02-021975-11-25
19761976-01-311976-03-05
19771977-03-291977-12-07
19781978-03-011978-12-05
19791979-01-121979-04-23
19801980-01-081980-12-26
19811981-02-061981-12-28
19821982-01-051982-11-24
19831983-12-161983-12-27
19841984-03-021984-11-27
19851985-01-301985-12-02
19861986-02-151986-11-12
19871987-04-221987-05-06
19881988-01-051988-12-16
19891989-02-031989-12-01
19931993-01-051993-11-04
19951995-02-151995-12-07

Every Fixed Threshold

Fixed thresholds at Ukumehame 301
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain482619683
25 mm (0.98 in): Days with 25 mm or more rain451519681
50 mm (1.97 in): Days with 50 mm or more rain37519671
100 mm (3.94 in): Days with 100 mm or more rain10219551
200 mm (7.87 in): Days with 200 mm or more rain1119831

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1943.

Download the Data

  • Data for Ukumehame 301 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).