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

Harlan Threshold Days by Year (USC00143432)

6 fixed thresholds counted per year at Harlan (USC00143432): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Harlan Thresholds

  • Harlan: days with 10 mm (0.39 in) or more of precipitation in 52 years, most in 1951 with 39.
  • Harlan: days with 25 mm (0.98 in) or more of precipitation in 51 years, most in 1951 with 15.
  • Harlan: days with 50 mm (1.97 in) or more of precipitation in 30 years, most in 1951 with 6.
  • Harlan: days with 10 cm (3.9 in) or more of snowfall in 18 years, most in 1969 with 4.
  • 6 fixed thresholds have at least one qualifying day at Harlan.
52 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Harlan Days per year at Harlan with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 39 in 1951. 0102030401941: 221942: 231943: 151944: 241945: 161946: 271947: 171949: 261950: 231951: 391952: 181953: 131954: 241955: 161956: 111957: 281958: 231959: 221960: 181961: 261962: 251963: 231964: 151965: 261966: 141967: 251968: 191969: 251970: 161971: 261972: 241973: 251974: 121975: 151976: 131977: 201978: 191979: 241980: 131981: 231982: 181983: 111984: 161985: 171986: 241987: 251988: 151989: 181990: 211991: 201992: 251993: 29194119471954196019661972197819841990
Days per year at Harlan with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 39 in 1951.
Days with 10 mm (0.39 in) or more of precipitation per year at Harlan
YearDaysDecade average
19412221.3
19422321.3
19431521.3
19442421.3
19451621.3
19462721.3
19471721.3
19492621.3
19502321.7
19513921.7
19521821.7
19531321.7
19542421.7
19551621.7
19561121.7
19572821.7
19582321.7
19592221.7
19601821.6
19612621.6
19622521.6
19632321.6
19641521.6
19652621.6
19661421.6
19672521.6
19681921.6
19692521.6
19701619.4
19712619.4
19722419.4
19732519.4
19741219.4
19751519.4
19761319.4
19772019.4
19781919.4
19792419.4
19801318
19812318
19821818
19831118
19841618
19851718
19862418
19872518
19881518
19891818
19902123.8
19912023.8
19922523.8
19932923.8
First to last qualifying date each year at Harlan For each year, a bar from the first to the last day at Harlan meeting 10 mm (0.39 in). 1941: 6 March 1941 to 22 December 19411942: 25 March 1942 to 22 December 19421943: 2 February 1943 to 20 October 19431944: 27 January 1944 to 4 December 19441945: 3 April 1945 to 24 December 19451946: 5 March 1946 to 9 November 19461947: 12 March 1947 to 4 December 19471949: 3 January 1949 to 10 October 19491950: 12 February 1950 to 2 October 19501951: 2 January 1951 to 25 November 19511952: 2 March 1952 to 19 December 19521953: 1 March 1953 to 3 December 19531954: 19 February 1954 to 26 October 19541955: 3 February 1955 to 3 October 19551956: 1 February 1956 to 11 August 19561957: 5 March 1957 to 18 November 19571958: 27 February 1958 to 18 November 19581959: 27 January 1959 to 31 October 19591960: 14 January 1960 to 11 December 19601961: 6 March 1961 to 16 November 19611962: 26 January 1962 to 21 December 19621963: 11 March 1963 to 27 October 19631964: 15 February 1964 to 15 November 19641965: 23 January 1965 to 19 October 19651966: 9 February 1966 to 28 December 19661967: 1 April 1967 to 6 October 19671968: 3 April 1968 to 19 December 19681969: 14 February 1969 to 30 October 19691970: 13 April 1970 to 9 October 19701971: 3 January 1971 to 30 December 19711972: 24 March 1972 to 13 November 19721973: 4 March 1973 to 4 December 19731974: 11 April 1974 to 3 November 19741975: 4 February 1975 to 20 November 19751976: 21 February 1976 to 7 October 19761977: 4 April 1977 to 24 October 19771978: 13 February 1978 to 26 November 19781979: 13 January 1979 to 21 November 19791980: 16 January 1980 to 27 October 19801981: 4 March 1981 to 1 December 19811982: 19 March 1982 to 28 December 19821983: 14 May 1983 to 29 October 19831984: 17 March 1984 to 16 December 19841985: 10 January 1985 to 18 October 19851986: 12 March 1986 to 7 December 19861987: 28 February 1987 to 29 November 19871988: 19 January 1988 to 16 November 19881989: 18 May 1989 to 27 October 19891990: 20 January 1990 to 3 November 19901991: 17 March 1991 to 12 December 19911992: 1 January 1992 to 14 December 19921993: 11 February 1993 to 14 December 199319411949195619631970197719841991JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Harlan meeting 10 mm (0.39 in).
First to last qualifying date each year at Harlan
YearFirst dateLast date
19411941-03-061941-12-22
19421942-03-251942-12-22
19431943-02-021943-10-20
19441944-01-271944-12-04
19451945-04-031945-12-24
19461946-03-051946-11-09
19471947-03-121947-12-04
19491949-01-031949-10-10
19501950-02-121950-10-02
19511951-01-021951-11-25
19521952-03-021952-12-19
19531953-03-011953-12-03
19541954-02-191954-10-26
19551955-02-031955-10-03
19561956-02-011956-08-11
19571957-03-051957-11-18
19581958-02-271958-11-18
19591959-01-271959-10-31
19601960-01-141960-12-11
19611961-03-061961-11-16
19621962-01-261962-12-21
19631963-03-111963-10-27
19641964-02-151964-11-15
19651965-01-231965-10-19
19661966-02-091966-12-28
19671967-04-011967-10-06
19681968-04-031968-12-19
19691969-02-141969-10-30
19701970-04-131970-10-09
19711971-01-031971-12-30
19721972-03-241972-11-13
19731973-03-041973-12-04
19741974-04-111974-11-03
19751975-02-041975-11-20
19761976-02-211976-10-07
19771977-04-041977-10-24
19781978-02-131978-11-26
19791979-01-131979-11-21
19801980-01-161980-10-27
19811981-03-041981-12-01
19821982-03-191982-12-28
19831983-05-141983-10-29
19841984-03-171984-12-16
19851985-01-101985-10-18
19861986-03-121986-12-07
19871987-02-281987-11-29
19881988-01-191988-11-16
19891989-05-181989-10-27
19901990-01-201990-11-03
19911991-03-171991-12-12
19921992-01-011992-12-14
19931993-02-111993-12-14

Every Fixed Threshold

Fixed thresholds at Harlan
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain5239195129
25 mm (0.98 in): Days with 25 mm or more rain511519517
50 mm (1.97 in): Days with 50 mm or more rain30619511
100 mm (3.94 in): Days with 100 mm or more rain1119711
10 cm (3.9 in): Days with 10 cm or more snowfall18419691
25 cm (9.8 in): Days with 25 cm or more snowfall1119551

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1941.

Download the Data

  • Data for Harlan 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).