Built 2026-10-19 (19 October 2026)

Marathon Threshold Days by Year (USC00415579)

16 fixed thresholds counted per year at Marathon (USC00415579): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Marathon Thresholds

  • Marathon: days with 10 mm (0.39 in) or more of precipitation in 69 years, most in 1914 with 28.
  • Marathon: days with a maximum temperature at or above 30 C (86 F) in 63 years, most in 1942 with 199.
  • Marathon: days with a maximum temperature at or above 90 F (32.2 C) in 63 years, most in 1942 with 157.
  • Marathon: days with 25 mm (0.98 in) or more of precipitation in 62 years, most in 1914 with 10.
  • 16 fixed thresholds have at least one qualifying day at Marathon.
63 years with a qualifying day
Days at or above 30 C (86 F) per year at Marathon Days per year at Marathon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 199 in 1942. 0501001502001910: 961911: 781912: 881913: 421914: 461941: 1261942: 1991949: 1141950: 1101951: 1471952: 1261953: 1351954: 1471955: 1361956: 1521957: 1261958: 1171959: 1431960: 1321962: 1521963: 1201964: 1151965: 1371967: 1291970: 921971: 1001975: 1161976: 731978: 1181979: 1371980: 1371981: 1211982: 1591983: 1501984: 1201985: 1311986: 1231987: 871988: 1201989: 1561990: 951991: 911992: 1191993: 1131994: 1391995: 1401996: 1241997: 641998: 1512002: 1352005: 1342007: 1342008: 1292010: 1512011: 1862012: 1492013: 1462014: 1442015: 1292016: 1082017: 1482018: 1322019: 130191019491956196419781985199220022013
Days per year at Marathon with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 199 in 1942.
Days at or above 30 C (86 F) per year at Marathon
YearDaysDecade average
19109670
19117870
19128870
19134270
19144670
1941126146.3
1942199146.3
1949114146.3
1950110133.9
1951147133.9
1952126133.9
1953135133.9
1954147133.9
1955136133.9
1956152133.9
1957126133.9
1958117133.9
1959143133.9
1960132130.8
1962152130.8
1963120130.8
1964115130.8
1965137130.8
1967129130.8
197092106
1971100106
1975116106
197673106
1978118106
1979137106
1980137130.4
1981121130.4
1982159130.4
1983150130.4
1984120130.4
1985131130.4
1986123130.4
198787130.4
1988120130.4
1989156130.4
199095115.1
199191115.1
1992119115.1
1993113115.1
1994139115.1
1995140115.1
1996124115.1
199764115.1
1998151115.1
2002135133
2005134133
2007134133
2008129133
2010151142.3
2011186142.3
2012149142.3
2013146142.3
2014144142.3
2015129142.3
2016108142.3
2017148142.3
2018132142.3
2019130142.3
First to last qualifying date each year at Marathon For each year, a bar from the first to the last day at Marathon meeting 30 C (86 F). 1910: 21 April 1910 to 24 September 19101911: 9 March 1911 to 6 October 19111912: 30 April 1912 to 5 October 19121913: 12 May 1913 to 19 September 19131914: 15 April 1914 to 15 September 19141941: 10 April 1941 to 24 October 19411942: 14 March 1942 to 27 December 19421949: 14 April 1949 to 9 October 19491950: 23 March 1950 to 1 November 19501951: 7 March 1951 to 14 October 19511952: 7 April 1952 to 26 October 19521953: 20 March 1953 to 15 October 19531954: 22 March 1954 to 22 October 19541955: 3 March 1955 to 21 October 19551956: 1 April 1956 to 14 November 19561957: 9 February 1957 to 7 October 19571958: 19 April 1958 to 9 October 19581959: 5 April 1959 to 25 October 19591960: 8 March 1960 to 10 October 19601962: 28 March 1962 to 16 October 19621963: 24 March 1963 to 11 October 19631964: 11 April 1964 to 17 October 19641965: 2 April 1965 to 17 October 19651967: 11 March 1967 to 26 October 19671970: 22 April 1970 to 23 September 19701971: 24 March 1971 to 28 September 19711975: 17 April 1975 to 10 November 19751976: 14 April 1976 to 13 September 19761978: 1 April 1978 to 12 October 19781979: 8 April 1979 to 27 October 19791980: 10 April 1980 to 8 November 19801981: 2 April 1981 to 4 October 19811982: 12 March 1982 to 31 October 19821983: 31 March 1983 to 8 October 19831984: 14 March 1984 to 25 September 19841985: 10 March 1985 to 13 October 19851986: 19 February 1986 to 3 October 19861987: 11 April 1987 to 9 October 19871988: 24 March 1988 to 7 November 19881989: 11 March 1989 to 16 October 19891990: 13 April 1990 to 9 September 19901991: 21 April 1991 to 18 October 19911992: 11 April 1992 to 26 October 19921993: 11 April 1993 to 18 October 19931994: 19 March 1994 to 24 October 19941995: 20 March 1995 to 22 October 19951996: 22 February 1996 to 21 November 19961997: 21 April 1997 to 30 November 19971998: 22 April 1998 to 23 November 19982002: 25 March 2002 to 6 October 20022005: 9 April 2005 to 8 November 20052007: 15 March 2007 to 5 November 20072008: 24 February 2008 to 6 September 20082010: 1 April 2010 to 2 November 20102011: 17 February 2011 to 27 October 20112012: 16 March 2012 to 31 October 20122013: 17 March 2013 to 13 October 20132014: 16 February 2014 to 27 October 20142015: 30 March 2015 to 16 October 20152016: 20 February 2016 to 31 October 20162017: 12 February 2017 to 18 November 20172018: 23 March 2018 to 3 October 20182019: 29 March 2019 to 21 October 201919101950195819701982199019982013JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Marathon meeting 30 C (86 F).
First to last qualifying date each year at Marathon
YearFirst dateLast date
19101910-04-211910-09-24
19111911-03-091911-10-06
19121912-04-301912-10-05
19131913-05-121913-09-19
19141914-04-151914-09-15
19411941-04-101941-10-24
19421942-03-141942-12-27
19491949-04-141949-10-09
19501950-03-231950-11-01
19511951-03-071951-10-14
19521952-04-071952-10-26
19531953-03-201953-10-15
19541954-03-221954-10-22
19551955-03-031955-10-21
19561956-04-011956-11-14
19571957-02-091957-10-07
19581958-04-191958-10-09
19591959-04-051959-10-25
19601960-03-081960-10-10
19621962-03-281962-10-16
19631963-03-241963-10-11
19641964-04-111964-10-17
19651965-04-021965-10-17
19671967-03-111967-10-26
19701970-04-221970-09-23
19711971-03-241971-09-28
19751975-04-171975-11-10
19761976-04-141976-09-13
19781978-04-011978-10-12
19791979-04-081979-10-27
19801980-04-101980-11-08
19811981-04-021981-10-04
19821982-03-121982-10-31
19831983-03-311983-10-08
19841984-03-141984-09-25
19851985-03-101985-10-13
19861986-02-191986-10-03
19871987-04-111987-10-09
19881988-03-241988-11-07
19891989-03-111989-10-16
19901990-04-131990-09-09
19911991-04-211991-10-18
19921992-04-111992-10-26
19931993-04-111993-10-18
19941994-03-191994-10-24
19951995-03-201995-10-22
19961996-02-221996-11-21
19971997-04-211997-11-30
19981998-04-221998-11-23
20022002-03-252002-10-06
20052005-04-092005-11-08
20072007-03-152007-11-05
20082008-02-242008-09-06
20102010-04-012010-11-02
20112011-02-172011-10-27
20122012-03-162012-10-31
20132013-03-172013-10-13
20142014-02-162014-10-27
20152015-03-302015-10-16
20162016-02-202016-10-31
20172017-02-122017-11-18
20182018-03-232018-10-03
20192019-03-292019-10-21

Every Fixed Threshold

Fixed thresholds at Marathon
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days631991942130
35 C (95 F): Days6192201136
40 C (104 F): Days23820112
90 F (32.2 C): Days63157194286
100 F (37.8 C): Days483120112
0 C (32 F): Ice days (max29420131
0 C (32 F): Frost days (min57107196467
-10 C (14 F): Days with min501619639
-20 C (-4 F): Days with min2219622
20 C (68 F): Tropical nights (min4582199738
25 C (77 F): Days with min3119781
10 mm (0.39 in): Days with 10 mm or more rain6928191411
25 mm (0.98 in): Days with 25 mm or more rain621019144
50 mm (1.97 in): Days with 50 mm or more rain25219131
100 mm (3.94 in): Days with 100 mm or more rain1119141
10 cm (3.9 in): Days with 10 cm or more snowfall6119121

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1910.

Download the Data

  • Data for Marathon 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 (2026-10-12).