Built 2026-10-19 (19 October 2026)

Harlan Co Lake Threshold Days by Year (USC00253595)

19 fixed thresholds counted per year at Harlan Co Lake (USC00253595): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Harlan Co Lake Thresholds

  • Harlan Co Lake: days with 10 mm (0.39 in) or more of precipitation in 79 years, most in 1965 with 33.
  • Harlan Co Lake: days with 25 mm (0.98 in) or more of precipitation in 79 years, most in 1996 with 12.
  • Harlan Co Lake: days with a maximum temperature at or above 30 C (86 F) in 58 years, most in 1956 with 103.
  • Harlan Co Lake: days with a maximum temperature at or above 90 F (32.2 C) in 58 years, most in 1954 with 69.
  • 19 fixed thresholds have at least one qualifying day at Harlan Co Lake.
58 years with a qualifying day
Days at or above 30 C (86 F) per year at Harlan Co Lake Days per year at Harlan Co Lake with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 103 in 1956. 0501001501953: 911954: 951955: 911956: 1031957: 581958: 511959: 781960: 611961: 571962: 551963: 891964: 791965: 461966: 691967: 461968: 631969: 471970: 811971: 661972: 581973: 641974: 581975: 621976: 741977: 571978: 751979: 611980: 871981: 561982: 541983: 791984: 771985: 661986: 691987: 641988: 861989: 581990: 641991: 831992: 391993: 461994: 681995: 681996: 432013: 732014: 662015: 692016: 722017: 792018: 842019: 682020: 862021: 782022: 892023: 652024: 832025: 752026: 1011953195919651971197719831989199520172023
Days per year at Harlan Co Lake with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 103 in 1956.
Days at or above 30 C (86 F) per year at Harlan Co Lake
YearDaysDecade average
19539181
19549581
19559181
195610381
19575881
19585181
19597881
19606161.2
19615761.2
19625561.2
19638961.2
19647961.2
19654661.2
19666961.2
19674661.2
19686361.2
19694761.2
19708165.6
19716665.6
19725865.6
19736465.6
19745865.6
19756265.6
19767465.6
19775765.6
19787565.6
19796165.6
19808769.6
19815669.6
19825469.6
19837969.6
19847769.6
19856669.6
19866969.6
19876469.6
19888669.6
19895869.6
19906458.7
19918358.7
19923958.7
19934658.7
19946858.7
19956858.7
19964358.7
20137373
20146673
20156973
20167273
20177973
20188473
20196873
20208682.4
20217882.4
20228982.4
20236582.4
20248382.4
20257582.4
202610182.4
First to last qualifying date each year at Harlan Co Lake For each year, a bar from the first to the last day at Harlan Co Lake meeting 30 C (86 F). 1953: 23 April 1953 to 11 October 19531954: 7 April 1954 to 10 October 19541955: 27 April 1955 to 12 October 19551956: 2 April 1956 to 13 October 19561957: 6 June 1957 to 1 October 19571958: 31 May 1958 to 20 October 19581959: 2 May 1959 to 21 September 19591960: 25 May 1960 to 12 October 19601961: 12 May 1961 to 11 September 19611962: 21 April 1962 to 15 October 19621963: 16 April 1963 to 11 October 19631964: 17 April 1964 to 3 October 19641965: 23 April 1965 to 13 September 19651966: 7 May 1966 to 14 October 19661967: 24 March 1967 to 4 October 19671968: 2 May 1968 to 15 October 19681969: 28 May 1969 to 4 October 19691970: 28 April 1970 to 21 September 19701971: 1 April 1971 to 30 September 19711972: 7 March 1972 to 2 October 19721973: 19 May 1973 to 3 September 19731974: 28 May 1974 to 11 October 19741975: 19 May 1975 to 14 October 19751976: 20 May 1976 to 3 October 19761977: 17 May 1977 to 18 September 19771978: 1 April 1978 to 21 October 19781979: 17 May 1979 to 9 October 19791980: 21 April 1980 to 7 November 19801981: 27 April 1981 to 30 September 19811982: 29 June 1982 to 6 October 19821983: 28 May 1983 to 2 October 19831984: 1 June 1984 to 24 September 19841985: 18 April 1985 to 20 September 19851986: 29 March 1986 to 22 September 19861987: 18 April 1987 to 5 October 19871988: 13 May 1988 to 15 October 19881989: 22 April 1989 to 14 October 19891990: 12 June 1990 to 6 October 19901991: 7 April 1991 to 23 October 19911992: 15 April 1992 to 4 October 19921993: 15 May 1993 to 7 October 19931994: 18 March 1994 to 1 October 19941995: 7 June 1995 to 17 October 19951996: 3 April 1996 to 11 September 19962013: 28 April 2013 to 28 September 20132014: 27 April 2014 to 29 September 20142015: 17 March 2015 to 12 October 20152016: 4 June 2016 to 23 September 20162017: 8 May 2017 to 24 September 20172018: 6 May 2018 to 4 October 20182019: 21 April 2019 to 1 October 20192020: 2 May 2020 to 13 October 20202021: 5 April 2021 to 10 October 20212022: 24 April 2022 to 24 October 20222023: 13 April 2023 to 21 October 20232024: 14 April 2024 to 11 October 20242025: 13 April 2025 to 12 October 20252026: 20 March 2026 to 13 October 202619531961196919771985199320172025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Harlan Co Lake meeting 30 C (86 F).
First to last qualifying date each year at Harlan Co Lake
YearFirst dateLast date
19531953-04-231953-10-11
19541954-04-071954-10-10
19551955-04-271955-10-12
19561956-04-021956-10-13
19571957-06-061957-10-01
19581958-05-311958-10-20
19591959-05-021959-09-21
19601960-05-251960-10-12
19611961-05-121961-09-11
19621962-04-211962-10-15
19631963-04-161963-10-11
19641964-04-171964-10-03
19651965-04-231965-09-13
19661966-05-071966-10-14
19671967-03-241967-10-04
19681968-05-021968-10-15
19691969-05-281969-10-04
19701970-04-281970-09-21
19711971-04-011971-09-30
19721972-03-071972-10-02
19731973-05-191973-09-03
19741974-05-281974-10-11
19751975-05-191975-10-14
19761976-05-201976-10-03
19771977-05-171977-09-18
19781978-04-011978-10-21
19791979-05-171979-10-09
19801980-04-211980-11-07
19811981-04-271981-09-30
19821982-06-291982-10-06
19831983-05-281983-10-02
19841984-06-011984-09-24
19851985-04-181985-09-20
19861986-03-291986-09-22
19871987-04-181987-10-05
19881988-05-131988-10-15
19891989-04-221989-10-14
19901990-06-121990-10-06
19911991-04-071991-10-23
19921992-04-151992-10-04
19931993-05-151993-10-07
19941994-03-181994-10-01
19951995-06-071995-10-17
19961996-04-031996-09-11
20132013-04-282013-09-28
20142014-04-272014-09-29
20152015-03-172015-10-12
20162016-06-042016-09-23
20172017-05-082017-09-24
20182018-05-062018-10-04
20192019-04-212019-10-01
20202020-05-022020-10-13
20212021-04-052021-10-10
20222022-04-242022-10-24
20232023-04-132023-10-21
20242024-04-142024-10-11
20252025-04-132025-10-12
20262026-03-202026-10-13

Every Fixed Threshold

Fixed thresholds at Harlan Co Lake
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days581031956101
35 C (95 F): Days5747195423
40 C (104 F): Days281119541
90 F (32.2 C): Days5869195456
100 F (37.8 C): Days492219835
110 F (43.3 C): Days1119541
0 C (32 F): Ice days (max586219788
0 C (32 F): Frost days (min57177196783
-10 C (14 F): Days with min5775195523
-20 C (-4 F): Days with min521819633
-30 C (-22 F): Days with min5419892
20 C (68 F): Tropical nights (min5642195449
25 C (77 F): Days with min9219541
10 mm (0.39 in): Days with 10 mm or more rain7933196517
25 mm (0.98 in): Days with 25 mm or more rain791219969
50 mm (1.97 in): Days with 50 mm or more rain57318981
100 mm (3.94 in): Days with 100 mm or more rain6118961
10 cm (3.9 in): Days with 10 cm or more snowfall39619933
25 cm (9.8 in): Days with 25 cm or more snowfall3119531

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1953.

Download the Data

  • Data for Harlan Co Lake 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 (2026-10-17).