Built 2026-10-16 (16 October 2026)

Marathon Weather Records (USC00415579)

Record envelope, standing records and threshold days for Marathon (USC00415579), Texas, United States, with 127 years of record.

Key Facts for Marathon

  • Marathon (USC00415579) is a weather station in Texas, United States at 30.19 latitude and -103.27 longitude, 1,216 m (3,989 ft) above sea level.
  • The station reports from 1896 to 2022, 127 years of record.
  • 1,464 records set at Marathon still stand.
  • Records are tracked for tmax, tmin, prcp, snow, snwd: an element needs 30 years of data to be eligible.
  • Marathon set a daily record precipitation of 25.4 mm (1.0 in) on 10 December 2022.

About the Station

  • Location: Texas, United States, 30.19 latitude, -103.27 longitude.
  • Elevation: 1,216 m (3,989 ft).
  • Period of record: 1896 to 2022, 127 years.
  • Eligible elements: tmax, tmin, prcp, snow, snwd.

Daily Record Envelope and 2026

0 days at or beyond a record
Daily record high and record low at Marathon, with 2026 drawn through them The band shows the record high and record low for each calendar day at Marathon. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -40-200204060 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Marathon. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Marathon, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan31.1 C (88.0 F)-21.1 C (-6.0 F)n/an/a
Feb32.8 C (91.0 F)-19.4 C (-2.9 F)n/an/a
Mar35.0 C (95.0 F)-12.8 C (9.0 F)n/an/a
Apr37.8 C (100.0 F)-7.2 C (19.0 F)n/an/a
May40.6 C (105.1 F)-3.3 C (26.1 F)n/an/a
Jun42.2 C (108.0 F)4.4 C (39.9 F)n/an/a
Jul41.7 C (107.1 F)9.4 C (48.9 F)n/an/a
Aug43.3 C (109.9 F)6.1 C (43.0 F)n/an/a
Sep38.9 C (102.0 F)1.7 C (35.1 F)n/an/a
Oct38.3 C (100.9 F)-8.3 C (17.1 F)n/an/a
Nov36.1 C (97.0 F)-17.8 C (0.0 F)n/an/a
Dec34.4 C (93.9 F)-19.4 C (-2.9 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Marathon by the year they were set 1,464 records at Marathon still stand. 1997 holds the most, with 81. 02550751001896: 31897: 271898: 41910: 231911: 411912: 141913: 311914: 291915: 231940: 161941: 91942: 641943: 581944: 591945: 151948: 101949: 161950: 151951: 181952: 171953: 181954: 51955: 111956: 41957: 171958: 71959: 111960: 81961: 121962: 231963: 91964: 121965: 101966: 231967: 181968: 51969: 71970: 81971: 111972: 111973: 11974: 71975: 221976: 331977: 121978: 91979: 191980: 151981: 141982: 111983: 111984: 101985: 161986: 171987: 111988: 131989: 181990: 121991: 91992: 111993: 91994: 91995: 101996: 181997: 811998: 191999: 32000: 102001: 72002: 162003: 132004: 192005: 122006: 122007: 42008: 132009: 42010: 172011: 242012: 102013: 142014: 212015: 82016: 92017: 182018: 152019: 132020: 302021: 32022: 301896194019511960196919781987199620052014
1,464 records at Marathon still stand. 1997 holds the most, with 81.
Standing records at Marathon by the year they were set
Year setStanding records
18963
189727
18984
191023
191141
191214
191331
191429
191523
194016
19419
194264
194358
194459
194515
194810
194916
195015
195118
195217
195318
19545
195511
19564
195717
19587
195911
19608
196112
196223
19639
196412
196510
196623
196718
19685
19697
19708
197111
197211
19731
19747
197522
197633
197712
19789
197919
198015
198114
198211
198311
198410
198516
198617
198711
198813
198918
199012
19919
199211
19939
19949
199510
199618
199781
199819
19993
200010
20017
200216
200313
200419
200512
200612
20074
200813
20094
201017
201124
201210
201314
201421
20158
20169
201718
201815
201913
202030
20213
202230

All-Time Record Progression

3 new records
When Marathon set new all-time records 3 all-time records were set at Marathon between 6 June 1978 and 27 January 2016. Each dot is a new record. Record high minimum temperatureRecord low maximum temperatureRecord snow depth6 June 1978: Record high minimum temperature 27.2 C (81.0 F)3 February 2011: Record low maximum temperature -9.4 C (15.1 F)27 January 2016: Record snow depth 10.2 cm (4.0 in)19801985199019952000200520102015
3 all-time records were set at Marathon between 6 June 1978 and 27 January 2016. Each dot is a new record.
When Marathon set new all-time records
DateKindDetail
1978-06-06Record high minimum temperatureRecord high minimum temperature 27.2 C (81.0 F)
2011-02-03Record low maximum temperatureRecord low maximum temperature -9.4 C (15.1 F)
2016-01-27Record snow depthRecord snow depth 10.2 cm (4.0 in)

Wettest Day of Each Month

May: 114.3 mm (4.5 in)
Record daily precipitation for each month at Marathon The wettest day on record for each calendar month at Marathon. The most was 114.3 mm (4.5 in) on 17 May 1914. 050100150 Jan: 38.1 mm (1.5 in), 9 January 2013 Jan Feb: 46.5 mm (1.8 in), 16 February 1957 Feb Mar: 43.2 mm (1.7 in), 31 March 1945 Mar Apr: 51.3 mm (2.0 in), 23 April 1949 Apr May: 114.3 mm (4.5 in), 17 May 1914 May Jun: 63.5 mm (2.5 in), 21 June 1913 Jun Jul: 81.3 mm (3.2 in), 6 July 2019 Jul Aug: 69.9 mm (2.8 in), 16 August 2022 Aug Sep: 78.0 mm (3.1 in), 1 September 1970 Sep Oct: 75.2 mm (3.0 in), 5 October 1986 Oct Nov: 40.6 mm (1.6 in), 15 November 2004 Nov Dec: 39.9 mm (1.6 in), 22 December 1986 Dec
The wettest day on record for each calendar month at Marathon. The most was 114.3 mm (4.5 in) on 17 May 1914.
Record daily precipitation for each month at Marathon
MonthRecord daily precipitation (mm)Date
Jan38.1 mm (1.5 in)9 January 2013
Feb46.5 mm (1.8 in)16 February 1957
Mar43.2 mm (1.7 in)31 March 1945
Apr51.3 mm (2.0 in)23 April 1949
May114.3 mm (4.5 in)17 May 1914
Jun63.5 mm (2.5 in)21 June 1913
Jul81.3 mm (3.2 in)6 July 2019
Aug69.9 mm (2.8 in)16 August 2022
Sep78.0 mm (3.1 in)1 September 1970
Oct75.2 mm (3.0 in)5 October 1986
Nov40.6 mm (1.6 in)15 November 2004
Dec39.9 mm (1.6 in)22 December 1986

Period of Record Coverage

1896 to 2022
Days with data per year at Marathon 90 years of record at Marathon, 1896 to 2022. 27 years have data for under 90 percent of days and are left out of rankings: 1896, 1897, 1898, 1915, 1940, 1943, 1944, 1945 and others. 1896: 120 of 366 days1897: 243 of 365 days1898: 182 of 365 days1910: 364 of 365 days1911: 365 of 365 days1912: 362 of 366 days1913: 362 of 365 days1914: 350 of 365 days1915: 235 of 365 days1940: 305 of 366 days1941: 359 of 365 days1942: 356 of 365 days1943: 322 of 365 days1944: 320 of 366 days1945: 175 of 365 days1948: 322 of 366 days1949: 365 of 365 days1950: 365 of 365 days1951: 365 of 365 days1952: 365 of 366 days1953: 364 of 365 days1954: 365 of 365 days1955: 365 of 365 days1956: 366 of 366 days1957: 365 of 365 days1958: 359 of 365 days1959: 363 of 365 days1960: 365 of 366 days1961: 286 of 365 days1962: 362 of 365 days1963: 351 of 365 days1964: 358 of 366 days1965: 361 of 365 days1966: 303 of 365 days1967: 362 of 365 days1968: 318 of 366 days1969: 274 of 365 days1970: 359 of 365 days1971: 365 of 365 days1972: 305 of 366 days1973: 62 of 365 days1974: 291 of 365 days1975: 329 of 365 days1976: 363 of 366 days1977: 328 of 365 days1978: 344 of 365 days1979: 364 of 365 days1980: 364 of 366 days1981: 362 of 365 days1982: 362 of 365 days1983: 363 of 365 days1984: 330 of 366 days1985: 358 of 365 days1986: 363 of 365 days1987: 364 of 365 days1988: 364 of 366 days1989: 363 of 365 days1990: 360 of 365 days1991: 353 of 365 days1992: 354 of 366 days1993: 357 of 365 days1994: 356 of 365 days1995: 357 of 365 days1996: 350 of 366 days1997: 353 of 365 days1998: 359 of 365 days1999: 138 of 365 days2000: 201 of 366 days2001: 205 of 365 days2002: 354 of 365 days2003: 305 of 365 days2004: 327 of 366 days2005: 363 of 365 days2006: 280 of 365 days2007: 347 of 365 days2008: 330 of 366 days2009: 151 of 365 days2010: 333 of 365 days2011: 360 of 365 days2012: 334 of 366 days2013: 361 of 365 days2014: 352 of 365 days2015: 348 of 365 days2016: 334 of 366 days2017: 357 of 365 days2018: 335 of 365 days2019: 349 of 365 days2020: 326 of 366 days2021: 95 of 365 days2022: 326 of 365 days19501965198019952010
90 years of record at Marathon, 1896 to 2022. 27 years have data for under 90 percent of days and are left out of rankings: 1896, 1897, 1898, 1915, 1940, 1943, 1944, 1945 and others.
Days with data per year at Marathon
YearDays with dataShare of yearComplete
189612033%No
189724367%No
189818250%No
1910364100%Yes
1911365100%Yes
191236299%Yes
191336299%Yes
191435096%Yes
191523564%No
194030583%No
194135998%Yes
194235698%Yes
194332288%No
194432087%No
194517548%No
194832288%No
1949365100%Yes
1950365100%Yes
1951365100%Yes
1952365100%Yes
1953364100%Yes
1954365100%Yes
1955365100%Yes
1956366100%Yes
1957365100%Yes
195835998%Yes
195936399%Yes
1960365100%Yes
196128678%No
196236299%Yes
196335196%Yes
196435898%Yes
196536199%Yes
196630383%No
196736299%Yes
196831887%No
196927475%No
197035998%Yes
1971365100%Yes
197230583%No
19736217%No
197429180%No
197532990%Yes
197636399%Yes
197732890%No
197834494%Yes
1979364100%Yes
198036499%Yes
198136299%Yes
198236299%Yes
198336399%Yes
198433090%Yes
198535898%Yes
198636399%Yes
1987364100%Yes
198836499%Yes
198936399%Yes
199036099%Yes
199135397%Yes
199235497%Yes
199335798%Yes
199435698%Yes
199535798%Yes
199635096%Yes
199735397%Yes
199835998%Yes
199913838%No
200020155%No
200120556%No
200235497%Yes
200330584%No
200432789%No
200536399%Yes
200628077%No
200734795%Yes
200833090%Yes
200915141%No
201033391%Yes
201136099%Yes
201233491%Yes
201336199%Yes
201435296%Yes
201534895%Yes
201633491%Yes
201735798%Yes
201833592%Yes
201934996%Yes
202032689%No
20219526%No
202232689%No

Latest Records

20
Latest records at Marathon
DateStationRecordValueBeat old record byOld record stoodSignificance
10 December 2022Marathon, USdaily rain25.4 mm (1.0 in)7.4 mm (0.29 in)57 years38 of 100 (Notable)
26 November 2022Marathon, USdaily low max5.0 C (41.0 F)0.6 C (1.1 F)40 years23 of 100 (Routine)
25 November 2022Marathon, USdaily snowfall5.1 cm (2.0 in)5.1 cm (2.0 in)112 years50 of 100 (Notable)
25 November 2022Marathon, USmonthly snow depth5.1 cm (2.0 in)2.6 cm (1.0 in)46 years20 of 100 (Routine)
20 November 2022Marathon, USdaily low max3.9 C (39.0 F)6.1 C (11.0 F)60 years38 of 100 (Notable)
19 November 2022Marathon, USdaily low max2.8 C (37.0 F)3.9 C (7.0 F)60 years34 of 100 (Routine)
10 November 2022Marathon, USdaily high min13.9 C (57.0 F)1.7 C (3.1 F)52 years28 of 100 (Routine)
9 November 2022Marathon, USdaily high min13.3 C (55.9 F)0.5 C (0.9 F)20 years17 of 100 (Routine)
15 October 2022Marathon, USdaily high min (Tie)20.0 C (68.0 F)tie24 years4 of 100 (Routine)
3 September 2022Marathon, USdaily high min20.6 C (69.1 F)0.6 C (1.1 F)24 years18 of 100 (Routine)
22 August 2022Marathon, USdaily high min (Tie)21.1 C (70.0 F)tie80 years8 of 100 (Routine)
19 August 2022Marathon, USdaily high min (Tie)20.0 C (68.0 F)tie40 years5 of 100 (Routine)
19 August 2022Marathon, USdaily rain (Tie)17.8 mm (0.7 in)tie12 years3 of 100 (Routine)
18 August 2022Marathon, USdaily high min (Tie)20.0 C (68.0 F)tie24 years4 of 100 (Routine)
16 August 2022Marathon, USmonthly rain69.9 mm (2.8 in)3.9 mm (0.15 in)34 years33 of 100 (Routine)
7 August 2022Marathon, USdaily high min20.6 C (69.1 F)0.6 C (1.1 F)64 years31 of 100 (Routine)
5 August 2022Marathon, USdaily high min21.7 C (71.1 F)1.1 C (2.0 F)111 years45 of 100 (Notable)
4 August 2022Marathon, USdaily high max40.0 C (104.0 F)0.6 C (1.1 F)79 years34 of 100 (Routine)
3 August 2022Marathon, USdaily high max (Tie)40.0 C (104.0 F)tie9 years3 of 100 (Routine)
29 July 2022Marathon, USdaily high min (Tie)21.1 C (70.0 F)tie124 years10 of 100 (Routine)

Climate Trend

45 complete years, 1911 to 2017
Annual mean temperature at Marathon as warming stripes, 1911 to 2017 One stripe for each of 45 complete years at Marathon, 1911 to 2017. Blue stripes are years cooler than the station's own mean of 16.6 C (61.9 F); red stripes are warmer. The coolest year was 1913, at 14.5 C (58.1 F), and the warmest was 1998, at 19.6 C (67.3 F). The strongest colour marks a difference of 3.0 C (5.4 F). 1911: 15.9 C, -0.7 C from the station mean1912: 15.2 C, -1.4 C from the station mean1913: 14.5 C, -2.1 C from the station mean1941: 16.9 C, +0.2 C from the station mean1949: 16.3 C, -0.3 C from the station mean1950: 16.3 C, -0.3 C from the station mean1951: 16.9 C, +0.2 C from the station mean1952: 16.1 C, -0.5 C from the station mean1953: 16.9 C, +0.3 C from the station mean1954: 17.2 C, +0.6 C from the station mean1955: 16.6 C, -0.1 C from the station mean1958: 16.2 C, -0.4 C from the station mean1959: 16.3 C, -0.3 C from the station mean1960: 16.1 C, -0.5 C from the station mean1964: 15.4 C, -1.3 C from the station mean1965: 16.1 C, -0.5 C from the station mean1967: 16.2 C, -0.4 C from the station mean1970: 15.3 C, -1.4 C from the station mean1971: 15.7 C, -0.9 C from the station mean1978: 16.2 C, -0.4 C from the station mean1979: 16.3 C, -0.3 C from the station mean1980: 17.1 C, +0.5 C from the station mean1981: 17.0 C, +0.4 C from the station mean1982: 17.1 C, +0.5 C from the station mean1983: 16.8 C, +0.2 C from the station mean1985: 16.6 C, 0.0 C from the station mean1986: 17.0 C, +0.4 C from the station mean1987: 15.6 C, -1.0 C from the station mean1988: 16.1 C, -0.5 C from the station mean1989: 17.0 C, +0.4 C from the station mean1990: 16.9 C, +0.3 C from the station mean1991: 16.3 C, -0.4 C from the station mean1992: 16.2 C, -0.4 C from the station mean1993: 16.9 C, +0.3 C from the station mean1994: 17.8 C, +1.2 C from the station mean1995: 17.5 C, +0.9 C from the station mean1996: 17.6 C, +1.0 C from the station mean1997: 17.8 C, +1.1 C from the station mean1998: 19.6 C, +3.0 C from the station mean2002: 17.2 C, +0.6 C from the station mean2005: 17.1 C, +0.5 C from the station mean2007: 16.9 C, +0.3 C from the station mean2011: 17.0 C, +0.4 C from the station mean2014: 16.8 C, +0.1 C from the station mean2017: 17.3 C, +0.6 C from the station mean19111920193019401950196019701980199020002010
One stripe for each of 45 complete years at Marathon, 1911 to 2017. Blue stripes are years cooler than the station's own mean of 16.6 C (61.9 F); red stripes are warmer. The coolest year was 1913, at 14.5 C (58.1 F), and the warmest was 1998, at 19.6 C (67.3 F). The strongest colour marks a difference of 3.0 C (5.4 F).
Annual mean temperature at Marathon as warming stripes, 1911 to 2017
YearAnnual mean temperatureDifference from the station mean
191115.9 C-0.68 C
191215.2 C-1.40 C
191314.5 C-2.11 C
194116.9 C+0.24 C
194916.3 C-0.32 C
195016.3 C-0.32 C
195116.9 C+0.24 C
195216.1 C-0.50 C
195316.9 C+0.31 C
195417.2 C+0.59 C
195516.6 C-0.05 C
195816.2 C-0.44 C
195916.3 C-0.30 C
196016.1 C-0.49 C
196415.4 C-1.26 C
196516.1 C-0.50 C
196716.2 C-0.42 C
197015.3 C-1.35 C
197115.7 C-0.88 C
197816.2 C-0.42 C
197916.3 C-0.30 C
198017.1 C+0.51 C
198117.0 C+0.40 C
198217.1 C+0.49 C
198316.8 C+0.17 C
198516.6 C+0.02 C
198617.0 C+0.42 C
198715.6 C-1.02 C
198816.1 C-0.51 C
198917.0 C+0.37 C
199016.9 C+0.27 C
199116.3 C-0.35 C
199216.2 C-0.42 C
199316.9 C+0.29 C
199417.8 C+1.19 C
199517.5 C+0.87 C
199617.6 C+1.00 C
199717.8 C+1.14 C
199819.6 C+3.00 C
200217.2 C+0.58 C
200517.1 C+0.46 C
200716.9 C+0.32 C
201117.0 C+0.41 C
201416.8 C+0.13 C
201717.3 C+0.64 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1911 to 2017. In Fahrenheit: 0.3 F (0.2 to 0.5) per decade. The slope is a straight line fitted to 45 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Marathon
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.2 C (0.1 to 0.3) per decade0.3 F (0.2 to 0.5) per decade1911 to 201745Rise
Mean daily maximum0.3 C (0.2 to 0.4) per decade0.5 F (0.3 to 0.7) per decade1911 to 201745Rise
Mean daily minimum0.11 C (-0.02 to 0.24) per decade0.19 F (-0.04 to 0.43) per decade1911 to 201745Not clearly different from zero

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1896 to 2022
Yearly extremes at Marathon: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)43.3 C (109.9 F)194338.9 C (102.0 F)90
Coldest night (TNn)-21.1 C (-6.0 F)1949-11.9 C (10.5 F)90
Wettest day (Rx1day)114.3 mm (4.5 in)191444.1 mm (1.7 in)90
Wettest five days (Rx5day)140.6 mm (5.5 in)197462.1 mm (2.4 in)90
Longest dry spell (CDD)169 days201160 days90

Hottest day (TXx)

Hottest day (TXx) at Marathon by year The hottest day of the year at Marathon, 1896 to 2022. The record is 43.3 C (109.9 F) in 1943, marked on the chart; the median year is 38.9 C (102.0 F). 303540451900192019401960198020002020Record: 43.3 C (109.9 F) in 1943
The hottest day of the year at Marathon, 1896 to 2022. The record is 43.3 C (109.9 F) in 1943, marked on the chart; the median year is 38.9 C (102.0 F).
Hottest day (TXx) at Marathon by year
YearHottest day (TXx)
189636.7 C (98.1 F)
189737.8 C (100.0 F)
189835.6 C (96.1 F)
191038.3 C (100.9 F)
191137.2 C (99.0 F)
191237.2 C (99.0 F)
191333.3 C (91.9 F)
191433.3 C (91.9 F)
191538.9 C (102.0 F)
194038.9 C (102.0 F)
194137.2 C (99.0 F)
194238.9 C (102.0 F)
194343.3 C (109.9 F)
194440.0 C (104.0 F)
194540.0 C (104.0 F)
194838.9 C (102.0 F)
194938.3 C (100.9 F)
195036.1 C (97.0 F)
195141.7 C (107.1 F)
195239.4 C (102.9 F)
195340.6 C (105.1 F)
195437.2 C (99.0 F)
195538.3 C (100.9 F)
195641.1 C (106.0 F)
195740.6 C (105.1 F)
195840.0 C (104.0 F)
195938.9 C (102.0 F)
196040.0 C (104.0 F)
196136.7 C (98.1 F)
196237.8 C (100.0 F)
196338.9 C (102.0 F)
196437.8 C (100.0 F)
196536.7 C (98.1 F)
196638.3 C (100.9 F)
196738.9 C (102.0 F)
196838.3 C (100.9 F)
196938.9 C (102.0 F)
197040.6 C (105.1 F)
197137.2 C (99.0 F)
197240.6 C (105.1 F)
197335.6 C (96.1 F)
197436.7 C (98.1 F)
197540.0 C (104.0 F)
197637.2 C (99.0 F)
197738.9 C (102.0 F)
197840.6 C (105.1 F)
197938.3 C (100.9 F)
198041.7 C (107.1 F)
198139.4 C (102.9 F)
198238.3 C (100.9 F)
198340.0 C (104.0 F)
198436.7 C (98.1 F)
198538.3 C (100.9 F)
198637.8 C (100.0 F)
198737.8 C (100.0 F)
198837.8 C (100.0 F)
198940.6 C (105.1 F)
199038.3 C (100.9 F)
199136.1 C (97.0 F)
199237.8 C (100.0 F)
199336.1 C (97.0 F)
199442.2 C (108.0 F)
199539.4 C (102.9 F)
199638.9 C (102.0 F)
199736.7 C (98.1 F)
199841.1 C (106.0 F)
199936.7 C (98.1 F)
200038.9 C (102.0 F)
200136.7 C (98.1 F)
200237.8 C (100.0 F)
200342.8 C (109.0 F)
200438.3 C (100.9 F)
200540.6 C (105.1 F)
200638.3 C (100.9 F)
200737.2 C (99.0 F)
200840.6 C (105.1 F)
200936.1 C (97.0 F)
201041.7 C (107.1 F)
201141.1 C (106.0 F)
201240.0 C (104.0 F)
201339.4 C (102.9 F)
201441.1 C (106.0 F)
201538.9 C (102.0 F)
201640.0 C (104.0 F)
201740.6 C (105.1 F)
201841.1 C (106.0 F)
201937.8 C (100.0 F)
202041.7 C (107.1 F)
202131.7 C (89.1 F)
202241.1 C (106.0 F)

Coldest night (TNn)

Coldest night (TNn) at Marathon by year The coldest night of the year at Marathon, 1896 to 2022. The record is -21.1 C (-6.0 F) in 1949, marked on the chart; the median year is -11.9 C (10.5 F). -30-20-100101900192019401960198020002020Record: -21.1 C (-6.0 F) in 1949
The coldest night of the year at Marathon, 1896 to 2022. The record is -21.1 C (-6.0 F) in 1949, marked on the chart; the median year is -11.9 C (10.5 F).
Coldest night (TNn) at Marathon by year
YearColdest night (TNn)
18963.9 C (39.0 F)
1897-11.1 C (12.0 F)
1898-6.7 C (19.9 F)
1910-15.6 C (3.9 F)
1911-19.4 C (-2.9 F)
1912-12.2 C (10.0 F)
1913-17.2 C (1.0 F)
1914-10.0 C (14.0 F)
1915-11.7 C (10.9 F)
1940-7.8 C (18.0 F)
1941-8.3 C (17.1 F)
1942-10.6 C (12.9 F)
1943-12.2 C (10.0 F)
1944-12.2 C (10.0 F)
1945-6.7 C (19.9 F)
1948-11.1 C (12.0 F)
1949-21.1 C (-6.0 F)
1950-14.4 C (6.1 F)
1951-19.4 C (-2.9 F)
1952-12.2 C (10.0 F)
1953-19.4 C (-2.9 F)
1954-10.6 C (12.9 F)
1955-12.2 C (10.0 F)
1956-12.2 C (10.0 F)
1957-10.6 C (12.9 F)
1958-12.2 C (10.0 F)
1959-12.2 C (10.0 F)
1960-12.8 C (9.0 F)
1961-11.1 C (12.0 F)
1962-21.1 C (-6.0 F)
1963-13.9 C (7.0 F)
1964-16.1 C (3.0 F)
1965-13.9 C (7.0 F)
1966-14.4 C (6.1 F)
1967-14.4 C (6.1 F)
1968-10.6 C (12.9 F)
1969-9.4 C (15.1 F)
1970-13.3 C (8.1 F)
1971-13.9 C (7.0 F)
1972-18.3 C (-0.9 F)
19733.9 C (39.0 F)
1974-10.0 C (14.0 F)
1975-13.3 C (8.1 F)
1976-17.8 C (0.0 F)
1977-11.7 C (10.9 F)
1978-12.8 C (9.0 F)
1979-17.8 C (0.0 F)
1980-12.8 C (9.0 F)
1981-12.8 C (9.0 F)
1982-9.4 C (15.1 F)
1983-14.4 C (6.1 F)
1984-9.4 C (15.1 F)
1985-13.9 C (7.0 F)
1986-10.0 C (14.0 F)
1987-11.7 C (10.9 F)
1988-13.3 C (8.1 F)
1989-17.8 C (0.0 F)
1990-10.6 C (12.9 F)
1991-9.4 C (15.1 F)
1992-11.1 C (12.0 F)
1993-11.1 C (12.0 F)
1994-10.0 C (14.0 F)
1995-8.9 C (16.0 F)
1996-13.3 C (8.1 F)
1997-10.0 C (14.0 F)
1998-3.3 C (26.1 F)
1999-11.7 C (10.9 F)
2000-8.9 C (16.0 F)
2001-9.4 C (15.1 F)
2002-11.7 C (10.9 F)
2003-10.6 C (12.9 F)
2004-7.8 C (18.0 F)
2005-12.2 C (10.0 F)
2006-10.0 C (14.0 F)
2007-13.3 C (8.1 F)
2008-12.8 C (9.0 F)
2009-11.7 C (10.9 F)
2010-15.6 C (3.9 F)
2011-16.1 C (3.0 F)
2012-10.0 C (14.0 F)
2013-10.0 C (14.0 F)
2014-12.2 C (10.0 F)
2015-7.8 C (18.0 F)
2016-10.0 C (14.0 F)
2017-12.8 C (9.0 F)
2018-14.4 C (6.1 F)
2019-11.7 C (10.9 F)
2020-11.7 C (10.9 F)
2021-11.7 C (10.9 F)
2022-16.1 C (3.0 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Marathon by year The wettest day of the year at Marathon, 1896 to 2022. The record is 114.3 mm (4.5 in) in 1914, marked on the chart; the median year is 44.1 mm (1.7 in). 0501001501900192019401960198020002020Record: 114.3 mm (4.5 in) in 1914
The wettest day of the year at Marathon, 1896 to 2022. The record is 114.3 mm (4.5 in) in 1914, marked on the chart; the median year is 44.1 mm (1.7 in).
Wettest day (Rx1day) at Marathon by year
YearWettest day (Rx1day)
189671.9 mm (2.8 in)
189738.1 mm (1.5 in)
189825.4 mm (1.0 in)
191023.1 mm (0.9 in)
191144.5 mm (1.8 in)
191231.8 mm (1.3 in)
191363.5 mm (2.5 in)
1914114.3 mm (4.5 in)
191550.8 mm (2.0 in)
194045.2 mm (1.8 in)
194171.1 mm (2.8 in)
194265.8 mm (2.6 in)
194336.1 mm (1.4 in)
194439.4 mm (1.6 in)
194543.2 mm (1.7 in)
194827.9 mm (1.1 in)
194951.3 mm (2.0 in)
195041.9 mm (1.6 in)
195125.9 mm (1.0 in)
195228.2 mm (1.1 in)
195318.3 mm (0.7 in)
195446.2 mm (1.8 in)
195569.9 mm (2.8 in)
195613.5 mm (0.5 in)
195746.5 mm (1.8 in)
195864.5 mm (2.5 in)
195930.0 mm (1.2 in)
196041.7 mm (1.6 in)
196131.0 mm (1.2 in)
196251.6 mm (2.0 in)
196330.5 mm (1.2 in)
196452.6 mm (2.1 in)
196540.9 mm (1.6 in)
196625.9 mm (1.0 in)
196732.0 mm (1.3 in)
196861.0 mm (2.4 in)
196931.8 mm (1.3 in)
197078.0 mm (3.1 in)
197135.8 mm (1.4 in)
197237.6 mm (1.5 in)
197325.4 mm (1.0 in)
197445.0 mm (1.8 in)
197536.1 mm (1.4 in)
197643.7 mm (1.7 in)
197757.7 mm (2.3 in)
197840.6 mm (1.6 in)
197935.3 mm (1.4 in)
198037.1 mm (1.5 in)
198146.7 mm (1.8 in)
198234.5 mm (1.4 in)
198345.7 mm (1.8 in)
198454.6 mm (2.1 in)
198550.8 mm (2.0 in)
198675.2 mm (3.0 in)
198775.2 mm (3.0 in)
198850.3 mm (2.0 in)
198941.4 mm (1.6 in)
199061.5 mm (2.4 in)
199154.1 mm (2.1 in)
199245.5 mm (1.8 in)
199328.2 mm (1.1 in)
199416.3 mm (0.6 in)
199547.5 mm (1.9 in)
199651.3 mm (2.0 in)
199733.0 mm (1.3 in)
199812.7 mm (0.5 in)
199948.5 mm (1.9 in)
200058.4 mm (2.3 in)
200117.8 mm (0.7 in)
200235.3 mm (1.4 in)
200366.8 mm (2.6 in)
200461.0 mm (2.4 in)
200568.6 mm (2.7 in)
200633.0 mm (1.3 in)
200745.7 mm (1.8 in)
200840.6 mm (1.6 in)
200950.8 mm (2.0 in)
201058.4 mm (2.3 in)
201124.9 mm (1.0 in)
201246.5 mm (1.8 in)
201338.1 mm (1.5 in)
201449.0 mm (1.9 in)
201531.5 mm (1.2 in)
201638.1 mm (1.5 in)
201749.3 mm (1.9 in)
201848.3 mm (1.9 in)
201981.3 mm (3.2 in)
202014.5 mm (0.6 in)
20217.6 mm (0.30 in)
202269.9 mm (2.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Marathon by year The wettest five days of the year at Marathon, 1896 to 2022. The record is 140.6 mm (5.5 in) in 1974, marked on the chart; the median year is 62.1 mm (2.4 in). 0501001501900192019401960198020002020Record: 140.6 mm (5.5 in) in 1974
The wettest five days of the year at Marathon, 1896 to 2022. The record is 140.6 mm (5.5 in) in 1974, marked on the chart; the median year is 62.1 mm (2.4 in).
Wettest five days (Rx5day) at Marathon by year
YearWettest five days (Rx5day)
18960.0 mm (0.00 in)
189796.5 mm (3.8 in)
189842.4 mm (1.7 in)
191067.3 mm (2.6 in)
191161.4 mm (2.4 in)
191260.4 mm (2.4 in)
191371.1 mm (2.8 in)
1914118.4 mm (4.7 in)
191562.7 mm (2.5 in)
194077.4 mm (3.0 in)
1941124.4 mm (4.9 in)
194299.6 mm (3.9 in)
194378.7 mm (3.1 in)
194445.7 mm (1.8 in)
194563.5 mm (2.5 in)
194830.2 mm (1.2 in)
1949102.3 mm (4.0 in)
195059.1 mm (2.3 in)
195140.1 mm (1.6 in)
195247.0 mm (1.9 in)
195326.9 mm (1.1 in)
195461.4 mm (2.4 in)
195576.8 mm (3.0 in)
195626.0 mm (1.0 in)
195783.6 mm (3.3 in)
195871.3 mm (2.8 in)
195944.7 mm (1.8 in)
196067.1 mm (2.6 in)
196131.0 mm (1.2 in)
196266.3 mm (2.6 in)
196354.6 mm (2.1 in)
196457.4 mm (2.3 in)
196540.9 mm (1.6 in)
196652.0 mm (2.0 in)
196743.2 mm (1.7 in)
196882.6 mm (3.3 in)
196932.3 mm (1.3 in)
197091.2 mm (3.6 in)
197159.9 mm (2.4 in)
197270.4 mm (2.8 in)
197330.7 mm (1.2 in)
1974140.6 mm (5.5 in)
197548.0 mm (1.9 in)
197659.5 mm (2.3 in)
197770.7 mm (2.8 in)
1978110.6 mm (4.4 in)
197945.8 mm (1.8 in)
198062.8 mm (2.5 in)
1981106.4 mm (4.2 in)
198265.4 mm (2.6 in)
198356.9 mm (2.2 in)
198465.8 mm (2.6 in)
198560.6 mm (2.4 in)
198687.4 mm (3.4 in)
198783.9 mm (3.3 in)
198867.9 mm (2.7 in)
198946.5 mm (1.8 in)
1990105.7 mm (4.2 in)
199196.8 mm (3.8 in)
199247.5 mm (1.9 in)
199328.2 mm (1.1 in)
199419.1 mm (0.8 in)
199568.1 mm (2.7 in)
199670.6 mm (2.8 in)
199733.0 mm (1.3 in)
199812.7 mm (0.5 in)
199952.6 mm (2.1 in)
200074.9 mm (2.9 in)
200120.8 mm (0.8 in)
200282.1 mm (3.2 in)
2003104.1 mm (4.1 in)
2004107.9 mm (4.2 in)
200580.0 mm (3.1 in)
200652.6 mm (2.1 in)
200758.4 mm (2.3 in)
200899.1 mm (3.9 in)
200953.3 mm (2.1 in)
2010138.4 mm (5.4 in)
201130.0 mm (1.2 in)
201285.1 mm (3.4 in)
201369.3 mm (2.7 in)
201451.8 mm (2.0 in)
201560.3 mm (2.4 in)
201658.9 mm (2.3 in)
201767.8 mm (2.7 in)
201856.2 mm (2.2 in)
201991.2 mm (3.6 in)
202016.0 mm (0.6 in)
20217.6 mm (0.30 in)
202287.7 mm (3.5 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Marathon by year The longest dry spell of the year at Marathon, 1896 to 2022. The record is 169 days in 2011, marked on the chart; the median year is 60 days. 0501001502001900192019401960198020002020Record: 169 days in 2011
The longest dry spell of the year at Marathon, 1896 to 2022. The record is 169 days in 2011, marked on the chart; the median year is 60 days.
Longest dry spell (CDD) at Marathon by year
YearLongest dry spell (CDD)
189662 days
189774 days
189860 days
191077 days
191144 days
191246 days
191340 days
191477 days
191527 days
194035 days
194130 days
194240 days
194373 days
194478 days
194531 days
194854 days
194966 days
195090 days
195135 days
195253 days
195343 days
195486 days
1955102 days
195687 days
195737 days
195827 days
195958 days
196071 days
196141 days
196245 days
196338 days
196447 days
196560 days
196684 days
196765 days
196832 days
196981 days
197066 days
1971104 days
197248 days
197319 days
197464 days
197560 days
197658 days
197754 days
197854 days
197985 days
198056 days
198170 days
198255 days
198335 days
1984105 days
198536 days
198664 days
198754 days
198860 days
198948 days
199036 days
199142 days
199277 days
199361 days
199461 days
199591 days
199693 days
199768 days
1998122 days
199966 days
2000106 days
200190 days
200265 days
200382 days
200432 days
200560 days
2006101 days
200748 days
2008113 days
200930 days
201096 days
2011169 days
201259 days
201382 days
201456 days
201530 days
201630 days
201741 days
201848 days
201941 days
202066 days
202168 days
202285 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

43 years with a frost

Across 43 years with a frost, the median last spring frost at Marathon falls on 4 April and the median first autumn frost on 31 October, which leaves a median of 211 days between them.

Fitted over all years, the growing season changes by +0.7 days per decade at this station.

Frost dates and growing season at Marathon
MeasureMedian, all yearsEarliest periodRecent period (1960 to 2017)Recent against earliestFitted trend
Last spring frost4 Apriln/a5 Apriln/a+0.3 days per decade
First autumn frost31 Octobern/a31 Octobern/a+1.0 days per decade
Growing days211 daysn/a212 daysn/a+0.7 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

69 years, 1910 to 2022

A day with at least 44.4 mm (1.7 in) of rain is expected about once in 2 years. A day with at least 94.8 mm (3.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Marathon: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years44.4 mm (1.7 in)
5 years60.5 mm (2.4 in)
10 years70.0 mm (2.8 in)
25 years80.8 mm (3.2 in)
50 years88.1 mm (3.5 in)
100 years94.8 mm (3.7 in)Longer than the 69 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 69 years of values from 1910 to 2022.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 114.3 mm (4.5 in) in 1914; 81.3 mm (3.2 in) in 2019; 78.0 mm (3.1 in) in 1970.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

  • Data for Marathon standing records by year: CSV or JSON. Field meanings are on the data page.
  • 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2026-10-12).