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Built 2026-10-19 (19 October 2026)

Hartley 4 ESE Threshold Days by Year (USC00413981)

16 fixed thresholds counted per year at Hartley 4 ESE (USC00413981): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Hartley 4 ESE Thresholds

  • Hartley 4 ESE: days with 10 mm (0.39 in) or more of precipitation in 64 years, most in 1960 with 24.
  • Hartley 4 ESE: days with 25 mm (0.98 in) or more of precipitation in 63 years, most in 1960 with 10.
  • Hartley 4 ESE: days with 50 mm (1.97 in) or more of precipitation in 32 years, most in 1954 with 2.
  • Hartley 4 ESE: days with 10 cm (3.9 in) or more of snowfall in 16 years, most in 1958 with 3.
  • 16 fixed thresholds have at least one qualifying day at Hartley 4 ESE.
64 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Hartley 4 ESE Days per year at Hartley 4 ESE with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 24 in 1960. 01020301945: 51948: 181949: 201951: 81952: 121953: 111954: 121955: 71956: 61957: 151958: 171959: 91960: 241961: 191962: 141963: 111964: 131965: 171966: 141967: 81968: 171969: 171970: 121971: 191972: 141973: 141974: 91975: 121976: 131977: 141978: 151979: 201980: 121981: 171982: 151983: 111984: 131985: 171987: 131988: 131989: 171990: 131991: 221992: 181993: 131994: 161995: 121996: 211997: 191998: 151999: 122000: 142002: 92003: 102004: 172005: 102006: 162007: 152008: 162009: 142010: 172011: 42012: 92013: 91945195519621969197619831991199820062013
Days per year at Hartley 4 ESE with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 24 in 1960.
Days with 10 mm (0.39 in) or more of precipitation per year at Hartley 4 ESE
YearDaysDecade average
1945514.3
19481814.3
19492014.3
1951810.8
19521210.8
19531110.8
19541210.8
1955710.8
1956610.8
19571510.8
19581710.8
1959910.8
19602415.4
19611915.4
19621415.4
19631115.4
19641315.4
19651715.4
19661415.4
1967815.4
19681715.4
19691715.4
19701214.2
19711914.2
19721414.2
19731414.2
1974914.2
19751214.2
19761314.2
19771414.2
19781514.2
19792014.2
19801214.2
19811714.2
19821514.2
19831114.2
19841314.2
19851714.2
19871314.2
19881314.2
19891714.2
19901316.1
19912216.1
19921816.1
19931316.1
19941616.1
19951216.1
19962116.1
19971916.1
19981516.1
19991216.1
20001413.4
2002913.4
20031013.4
20041713.4
20051013.4
20061613.4
20071513.4
20081613.4
20091413.4
2010179.8
201149.8
201299.8
201399.8
First to last qualifying date each year at Hartley 4 ESE For each year, a bar from the first to the last day at Hartley 4 ESE meeting 10 mm (0.39 in). 1945: 18 June 1945 to 30 September 19451948: 28 January 1948 to 1 November 19481949: 26 February 1949 to 8 September 19491951: 2 January 1951 to 28 October 19511952: 9 March 1952 to 29 August 19521953: 9 March 1953 to 23 October 19531954: 17 May 1954 to 7 October 19541955: 13 April 1955 to 8 August 19551956: 24 May 1956 to 19 August 19561957: 4 January 1957 to 13 October 19571958: 28 January 1958 to 17 November 19581959: 8 May 1959 to 17 December 19591960: 4 February 1960 to 14 December 19601961: 17 March 1961 to 15 November 19611962: 25 March 1962 to 20 October 19621963: 22 May 1963 to 1 September 19631964: 4 February 1964 to 16 November 19641965: 12 March 1965 to 18 October 19651966: 28 February 1966 to 24 August 19661967: 8 April 1967 to 25 July 19671968: 22 January 1968 to 3 November 19681969: 5 May 1969 to 23 October 19691970: 4 April 1970 to 16 October 19701971: 16 April 1971 to 2 December 19711972: 26 April 1972 to 21 November 19721973: 10 March 1973 to 7 September 19731974: 10 March 1974 to 28 October 19741975: 11 April 1975 to 19 November 19751976: 16 April 1976 to 28 September 19761977: 20 April 1977 to 3 September 19771978: 3 May 1978 to 4 November 19781979: 18 January 1979 to 9 November 19791980: 21 January 1980 to 8 December 19801981: 12 March 1981 to 23 September 19811982: 19 March 1982 to 29 December 19821983: 21 January 1983 to 21 October 19831984: 23 March 1984 to 24 October 19841985: 21 February 1985 to 15 November 19851987: 20 February 1987 to 18 September 19871988: 3 March 1988 to 15 September 19881989: 15 May 1989 to 6 October 19891990: 19 January 1990 to 3 November 19901991: 10 January 1991 to 23 December 19911992: 7 January 1992 to 5 December 19921993: 9 January 1993 to 13 December 19931994: 9 March 1994 to 5 October 19941995: 5 May 1995 to 18 December 19951996: 26 May 1996 to 30 November 19961997: 22 April 1997 to 21 December 19971998: 16 March 1998 to 1 November 19981999: 30 January 1999 to 8 October 19992000: 2 March 2000 to 27 December 20002002: 31 January 2002 to 4 December 20022003: 20 March 2003 to 13 November 20032004: 3 March 2004 to 24 November 20042005: 27 March 2005 to 10 October 20052006: 29 April 2006 to 20 December 20062007: 21 January 2007 to 11 December 20072008: 6 May 2008 to 21 October 20082009: 9 February 2009 to 29 October 20092010: 29 January 2010 to 17 December 20102011: 3 August 2011 to 20 December 20112012: 22 March 2012 to 13 September 20122013: 12 February 2013 to 22 December 201319451956196419721980198919972006JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Hartley 4 ESE meeting 10 mm (0.39 in).
First to last qualifying date each year at Hartley 4 ESE
YearFirst dateLast date
19451945-06-181945-09-30
19481948-01-281948-11-01
19491949-02-261949-09-08
19511951-01-021951-10-28
19521952-03-091952-08-29
19531953-03-091953-10-23
19541954-05-171954-10-07
19551955-04-131955-08-08
19561956-05-241956-08-19
19571957-01-041957-10-13
19581958-01-281958-11-17
19591959-05-081959-12-17
19601960-02-041960-12-14
19611961-03-171961-11-15
19621962-03-251962-10-20
19631963-05-221963-09-01
19641964-02-041964-11-16
19651965-03-121965-10-18
19661966-02-281966-08-24
19671967-04-081967-07-25
19681968-01-221968-11-03
19691969-05-051969-10-23
19701970-04-041970-10-16
19711971-04-161971-12-02
19721972-04-261972-11-21
19731973-03-101973-09-07
19741974-03-101974-10-28
19751975-04-111975-11-19
19761976-04-161976-09-28
19771977-04-201977-09-03
19781978-05-031978-11-04
19791979-01-181979-11-09
19801980-01-211980-12-08
19811981-03-121981-09-23
19821982-03-191982-12-29
19831983-01-211983-10-21
19841984-03-231984-10-24
19851985-02-211985-11-15
19871987-02-201987-09-18
19881988-03-031988-09-15
19891989-05-151989-10-06
19901990-01-191990-11-03
19911991-01-101991-12-23
19921992-01-071992-12-05
19931993-01-091993-12-13
19941994-03-091994-10-05
19951995-05-051995-12-18
19961996-05-261996-11-30
19971997-04-221997-12-21
19981998-03-161998-11-01
19991999-01-301999-10-08
20002000-03-022000-12-27
20022002-01-312002-12-04
20032003-03-202003-11-13
20042004-03-032004-11-24
20052005-03-272005-10-10
20062006-04-292006-12-20
20072007-01-212007-12-11
20082008-05-062008-10-21
20092009-02-092009-10-29
20102010-01-292010-12-17
20112011-08-032011-12-20
20122012-03-222012-09-13
20132013-02-122013-12-22

Every Fixed Threshold

Fixed thresholds at Hartley 4 ESE
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days2115189374
35 C (95 F): Days241189441
40 C (104 F): Days1218932
90 F (32.2 C): Days272189352
100 F (37.8 C): Days213189413
0 C (32 F): Ice days (max238189438
0 C (32 F): Frost days (min21571894157
-10 C (14 F): Days with min240189440
-20 C (-4 F): Days with min1418944
20 C (68 F): Tropical nights (min112189312
10 mm (0.39 in): Days with 10 mm or more rain642419609
25 mm (0.98 in): Days with 25 mm or more rain631019601
50 mm (1.97 in): Days with 50 mm or more rain32219541
100 mm (3.94 in): Days with 100 mm or more rain2119971
10 cm (3.9 in): Days with 10 cm or more snowfall16319583
25 cm (9.8 in): Days with 25 cm or more snowfall2119701

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1893.

Download the Data

  • Data for Hartley 4 ESE 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).