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

West Lyell Threshold Days by Year

4 fixed thresholds counted per year at West Lyell (ASN00097015): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for West Lyell Thresholds

  • West Lyell: days with 10 mm (0.39 in) or more of precipitation in 32 years, most in 1946 with 131.
  • West Lyell: days with 25 mm (0.98 in) or more of precipitation in 32 years, most in 1946 with 45.
  • West Lyell: days with 50 mm (1.97 in) or more of precipitation in 28 years, most in 1951 with 7.
  • West Lyell: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1945 with 2.
  • 4 fixed thresholds have at least one qualifying day at West Lyell.
32 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at West Lyell Days per year at West Lyell with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 131 in 1946. 0501001501945: 1201946: 1311947: 1241948: 1211949: 1021950: 751951: 1071952: 1281953: 1101954: 931955: 1041956: 1121957: 1001958: 1161959: 871960: 901961: 761962: 1101963: 761964: 1081965: 981966: 801967: 741968: 1261969: 911970: 971971: 931972: 861973: 961974: 861975: 981976: 9519451949195319571961196519691973
Days per year at West Lyell with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 131 in 1946.
Days with 10 mm (0.39 in) or more of precipitation per year at West Lyell
YearDaysDecade average
1945120119.6
1946131119.6
1947124119.6
1948121119.6
1949102119.6
195075103.2
1951107103.2
1952128103.2
1953110103.2
195493103.2
1955104103.2
1956112103.2
1957100103.2
1958116103.2
195987103.2
19609092.9
19617692.9
196211092.9
19637692.9
196410892.9
19659892.9
19668092.9
19677492.9
196812692.9
19699192.9
19709793
19719393
19728693
19739693
19748693
19759893
19769593
First to last qualifying date each year at West Lyell For each year, a bar from the first to the last day at West Lyell meeting 10 mm (0.39 in). 1945: 2 January 1945 to 27 December 19451946: 2 January 1946 to 28 December 19461947: 7 January 1947 to 31 December 19471948: 2 January 1948 to 27 December 19481949: 4 January 1949 to 25 December 19491950: 2 January 1950 to 30 December 19501951: 4 January 1951 to 31 December 19511952: 1 January 1952 to 27 December 19521953: 6 January 1953 to 28 December 19531954: 28 January 1954 to 17 December 19541955: 6 January 1955 to 31 December 19551956: 1 January 1956 to 31 December 19561957: 7 January 1957 to 29 December 19571958: 16 January 1958 to 29 December 19581959: 7 January 1959 to 20 December 19591960: 9 January 1960 to 29 November 19601961: 4 January 1961 to 31 December 19611962: 26 January 1962 to 17 December 19621963: 15 January 1963 to 31 December 19631964: 1 January 1964 to 30 December 19641965: 2 January 1965 to 31 December 19651966: 13 January 1966 to 20 December 19661967: 2 January 1967 to 31 December 19671968: 1 January 1968 to 24 December 19681969: 4 January 1969 to 25 December 19691970: 5 January 1970 to 31 December 19701971: 16 January 1971 to 30 December 19711972: 1 January 1972 to 30 December 19721973: 10 January 1973 to 31 December 19731974: 1 January 1974 to 31 December 19741975: 9 January 1975 to 30 December 19751976: 9 January 1976 to 19 December 197619451949195319571961196519691973JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at West Lyell meeting 10 mm (0.39 in).
First to last qualifying date each year at West Lyell
YearFirst dateLast date
19451945-01-021945-12-27
19461946-01-021946-12-28
19471947-01-071947-12-31
19481948-01-021948-12-27
19491949-01-041949-12-25
19501950-01-021950-12-30
19511951-01-041951-12-31
19521952-01-011952-12-27
19531953-01-061953-12-28
19541954-01-281954-12-17
19551955-01-061955-12-31
19561956-01-011956-12-31
19571957-01-071957-12-29
19581958-01-161958-12-29
19591959-01-071959-12-20
19601960-01-091960-11-29
19611961-01-041961-12-31
19621962-01-261962-12-17
19631963-01-151963-12-31
19641964-01-011964-12-30
19651965-01-021965-12-31
19661966-01-131966-12-20
19671967-01-021967-12-31
19681968-01-011968-12-24
19691969-01-041969-12-25
19701970-01-051970-12-31
19711971-01-161971-12-30
19721972-01-011972-12-30
19731973-01-101973-12-31
19741974-01-011974-12-31
19751975-01-091975-12-30
19761976-01-091976-12-19

Every Fixed Threshold

Fixed thresholds at West Lyell
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain32131194695
25 mm (0.98 in): Days with 25 mm or more rain3245194624
50 mm (1.97 in): Days with 50 mm or more rain28719512
100 mm (3.94 in): Days with 100 mm or more rain1219452

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1945.

Download the Data

  • Data for West Lyell 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

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