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

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
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	31.1 C (88.0 F)	-21.1 C (-6.0 F)	n/a	n/a
Feb	32.8 C (91.0 F)	-19.4 C (-2.9 F)	n/a	n/a
Mar	35.0 C (95.0 F)	-12.8 C (9.0 F)	n/a	n/a
Apr	37.8 C (100.0 F)	-7.2 C (19.0 F)	n/a	n/a
May	40.6 C (105.1 F)	-3.3 C (26.1 F)	n/a	n/a
Jun	42.2 C (108.0 F)	4.4 C (39.9 F)	n/a	n/a
Jul	41.7 C (107.1 F)	9.4 C (48.9 F)	n/a	n/a
Aug	43.3 C (109.9 F)	6.1 C (43.0 F)	n/a	n/a
Sep	38.9 C (102.0 F)	1.7 C (35.1 F)	n/a	n/a
Oct	38.3 C (100.9 F)	-8.3 C (17.1 F)	n/a	n/a
Nov	36.1 C (97.0 F)	-17.8 C (0.0 F)	n/a	n/a
Dec	34.4 C (93.9 F)	-19.4 C (-2.9 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Marathon still stand. 1997 holds the most, with 81.

Standing records at Marathon by the year they were set
Year set	Standing records
1896	3
1897	27
1898	4
1910	23
1911	41
1912	14
1913	31
1914	29
1915	23
1940	16
1941	9
1942	64
1943	58
1944	59
1945	15
1948	10
1949	16
1950	15
1951	18
1952	17
1953	18
1954	5
1955	11
1956	4
1957	17
1958	7
1959	11
1960	8
1961	12
1962	23
1963	9
1964	12
1965	10
1966	23
1967	18
1968	5
1969	7
1970	8
1971	11
1972	11
1973	1
1974	7
1975	22
1976	33
1977	12
1978	9
1979	19
1980	15
1981	14
1982	11
1983	11
1984	10
1985	16
1986	17
1987	11
1988	13
1989	18
1990	12
1991	9
1992	11
1993	9
1994	9
1995	10
1996	18
1997	81
1998	19
1999	3
2000	10
2001	7
2002	16
2003	13
2004	19
2005	12
2006	12
2007	4
2008	13
2009	4
2010	17
2011	24
2012	10
2013	14
2014	21
2015	8
2016	9
2017	18
2018	15
2019	13
2020	30
2021	3
2022	30

All-Time Record Progression

3 new records

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
Date	Kind	Detail
1978-06-06	Record high minimum temperature	Record high minimum temperature 27.2 C (81.0 F)
2011-02-03	Record low maximum temperature	Record low maximum temperature -9.4 C (15.1 F)
2016-01-27	Record snow depth	Record snow depth 10.2 cm (4.0 in)

Wettest Day of Each Month

May: 114.3 mm (4.5 in)

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
Month	Record daily precipitation (mm)	Date
Jan	38.1 mm (1.5 in)	9 January 2013
Feb	46.5 mm (1.8 in)	16 February 1957
Mar	43.2 mm (1.7 in)	31 March 1945
Apr	51.3 mm (2.0 in)	23 April 1949
May	114.3 mm (4.5 in)	17 May 1914
Jun	63.5 mm (2.5 in)	21 June 1913
Jul	81.3 mm (3.2 in)	6 July 2019
Aug	69.9 mm (2.8 in)	16 August 2022
Sep	78.0 mm (3.1 in)	1 September 1970
Oct	75.2 mm (3.0 in)	5 October 1986
Nov	40.6 mm (1.6 in)	15 November 2004
Dec	39.9 mm (1.6 in)	22 December 1986

Period of Record Coverage

1896 to 2022

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
Year	Days with data	Share of year	Complete
1896	120	33%	No
1897	243	67%	No
1898	182	50%	No
1910	364	100%	Yes
1911	365	100%	Yes
1912	362	99%	Yes
1913	362	99%	Yes
1914	350	96%	Yes
1915	235	64%	No
1940	305	83%	No
1941	359	98%	Yes
1942	356	98%	Yes
1943	322	88%	No
1944	320	87%	No
1945	175	48%	No
1948	322	88%	No
1949	365	100%	Yes
1950	365	100%	Yes
1951	365	100%	Yes
1952	365	100%	Yes
1953	364	100%	Yes
1954	365	100%	Yes
1955	365	100%	Yes
1956	366	100%	Yes
1957	365	100%	Yes
1958	359	98%	Yes
1959	363	99%	Yes
1960	365	100%	Yes
1961	286	78%	No
1962	362	99%	Yes
1963	351	96%	Yes
1964	358	98%	Yes
1965	361	99%	Yes
1966	303	83%	No
1967	362	99%	Yes
1968	318	87%	No
1969	274	75%	No
1970	359	98%	Yes
1971	365	100%	Yes
1972	305	83%	No
1973	62	17%	No
1974	291	80%	No
1975	329	90%	Yes
1976	363	99%	Yes
1977	328	90%	No
1978	344	94%	Yes
1979	364	100%	Yes
1980	364	99%	Yes
1981	362	99%	Yes
1982	362	99%	Yes
1983	363	99%	Yes
1984	330	90%	Yes
1985	358	98%	Yes
1986	363	99%	Yes
1987	364	100%	Yes
1988	364	99%	Yes
1989	363	99%	Yes
1990	360	99%	Yes
1991	353	97%	Yes
1992	354	97%	Yes
1993	357	98%	Yes
1994	356	98%	Yes
1995	357	98%	Yes
1996	350	96%	Yes
1997	353	97%	Yes
1998	359	98%	Yes
1999	138	38%	No
2000	201	55%	No
2001	205	56%	No
2002	354	97%	Yes
2003	305	84%	No
2004	327	89%	No
2005	363	99%	Yes
2006	280	77%	No
2007	347	95%	Yes
2008	330	90%	Yes
2009	151	41%	No
2010	333	91%	Yes
2011	360	99%	Yes
2012	334	91%	Yes
2013	361	99%	Yes
2014	352	96%	Yes
2015	348	95%	Yes
2016	334	91%	Yes
2017	357	98%	Yes
2018	335	92%	Yes
2019	349	96%	Yes
2020	326	89%	No
2021	95	26%	No
2022	326	89%	No

Latest Records

Latest records at Marathon
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
10 December 2022	Marathon, US	daily rain	25.4 mm (1.0 in)	7.4 mm (0.29 in)	57 years	38 of 100 (Notable)
26 November 2022	Marathon, US	daily low max	5.0 C (41.0 F)	0.6 C (1.1 F)	40 years	23 of 100 (Routine)
25 November 2022	Marathon, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	112 years	50 of 100 (Notable)
25 November 2022	Marathon, US	monthly snow depth	5.1 cm (2.0 in)	2.6 cm (1.0 in)	46 years	20 of 100 (Routine)
20 November 2022	Marathon, US	daily low max	3.9 C (39.0 F)	6.1 C (11.0 F)	60 years	38 of 100 (Notable)
19 November 2022	Marathon, US	daily low max	2.8 C (37.0 F)	3.9 C (7.0 F)	60 years	34 of 100 (Routine)
10 November 2022	Marathon, US	daily high min	13.9 C (57.0 F)	1.7 C (3.1 F)	52 years	28 of 100 (Routine)
9 November 2022	Marathon, US	daily high min	13.3 C (55.9 F)	0.5 C (0.9 F)	20 years	17 of 100 (Routine)
15 October 2022	Marathon, US	daily high min (Tie)	20.0 C (68.0 F)	tie	24 years	4 of 100 (Routine)
3 September 2022	Marathon, US	daily high min	20.6 C (69.1 F)	0.6 C (1.1 F)	24 years	18 of 100 (Routine)
22 August 2022	Marathon, US	daily high min (Tie)	21.1 C (70.0 F)	tie	80 years	8 of 100 (Routine)
19 August 2022	Marathon, US	daily high min (Tie)	20.0 C (68.0 F)	tie	40 years	5 of 100 (Routine)
19 August 2022	Marathon, US	daily rain (Tie)	17.8 mm (0.7 in)	tie	12 years	3 of 100 (Routine)
18 August 2022	Marathon, US	daily high min (Tie)	20.0 C (68.0 F)	tie	24 years	4 of 100 (Routine)
16 August 2022	Marathon, US	monthly rain	69.9 mm (2.8 in)	3.9 mm (0.15 in)	34 years	33 of 100 (Routine)
7 August 2022	Marathon, US	daily high min	20.6 C (69.1 F)	0.6 C (1.1 F)	64 years	31 of 100 (Routine)
5 August 2022	Marathon, US	daily high min	21.7 C (71.1 F)	1.1 C (2.0 F)	111 years	45 of 100 (Notable)
4 August 2022	Marathon, US	daily high max	40.0 C (104.0 F)	0.6 C (1.1 F)	79 years	34 of 100 (Routine)
3 August 2022	Marathon, US	daily high max (Tie)	40.0 C (104.0 F)	tie	9 years	3 of 100 (Routine)
29 July 2022	Marathon, US	daily high min (Tie)	21.1 C (70.0 F)	tie	124 years	10 of 100 (Routine)

Climate Trend

45 complete years, 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).

Annual mean temperature at Marathon as warming stripes, 1911 to 2017
Year	Annual mean temperature	Difference from the station mean
1911	15.9 C	-0.68 C
1912	15.2 C	-1.40 C
1913	14.5 C	-2.11 C
1941	16.9 C	+0.24 C
1949	16.3 C	-0.32 C
1950	16.3 C	-0.32 C
1951	16.9 C	+0.24 C
1952	16.1 C	-0.50 C
1953	16.9 C	+0.31 C
1954	17.2 C	+0.59 C
1955	16.6 C	-0.05 C
1958	16.2 C	-0.44 C
1959	16.3 C	-0.30 C
1960	16.1 C	-0.49 C
1964	15.4 C	-1.26 C
1965	16.1 C	-0.50 C
1967	16.2 C	-0.42 C
1970	15.3 C	-1.35 C
1971	15.7 C	-0.88 C
1978	16.2 C	-0.42 C
1979	16.3 C	-0.30 C
1980	17.1 C	+0.51 C
1981	17.0 C	+0.40 C
1982	17.1 C	+0.49 C
1983	16.8 C	+0.17 C
1985	16.6 C	+0.02 C
1986	17.0 C	+0.42 C
1987	15.6 C	-1.02 C
1988	16.1 C	-0.51 C
1989	17.0 C	+0.37 C
1990	16.9 C	+0.27 C
1991	16.3 C	-0.35 C
1992	16.2 C	-0.42 C
1993	16.9 C	+0.29 C
1994	17.8 C	+1.19 C
1995	17.5 C	+0.87 C
1996	17.6 C	+1.00 C
1997	17.8 C	+1.14 C
1998	19.6 C	+3.00 C
2002	17.2 C	+0.58 C
2005	17.1 C	+0.46 C
2007	16.9 C	+0.32 C
2011	17.0 C	+0.41 C
2014	16.8 C	+0.13 C
2017	17.3 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
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (0.1 to 0.3) per decade	0.3 F (0.2 to 0.5) per decade	1911 to 2017	45	Rise
Mean daily maximum	0.3 C (0.2 to 0.4) per decade	0.5 F (0.3 to 0.7) per decade	1911 to 2017	45	Rise
Mean daily minimum	0.11 C (-0.02 to 0.24) per decade	0.19 F (-0.04 to 0.43) per decade	1911 to 2017	45	Not 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
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	43.3 C (109.9 F)	1943	38.9 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)	1914	44.1 mm (1.7 in)	90
Wettest five days (Rx5day)	140.6 mm (5.5 in)	1974	62.1 mm (2.4 in)	90
Longest dry spell (CDD)	169 days	2011	60 days	90

Hottest day (TXx)

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
Year	Hottest day (TXx)
1896	36.7 C (98.1 F)
1897	37.8 C (100.0 F)
1898	35.6 C (96.1 F)
1910	38.3 C (100.9 F)
1911	37.2 C (99.0 F)
1912	37.2 C (99.0 F)
1913	33.3 C (91.9 F)
1914	33.3 C (91.9 F)
1915	38.9 C (102.0 F)
1940	38.9 C (102.0 F)
1941	37.2 C (99.0 F)
1942	38.9 C (102.0 F)
1943	43.3 C (109.9 F)
1944	40.0 C (104.0 F)
1945	40.0 C (104.0 F)
1948	38.9 C (102.0 F)
1949	38.3 C (100.9 F)
1950	36.1 C (97.0 F)
1951	41.7 C (107.1 F)
1952	39.4 C (102.9 F)
1953	40.6 C (105.1 F)
1954	37.2 C (99.0 F)
1955	38.3 C (100.9 F)
1956	41.1 C (106.0 F)
1957	40.6 C (105.1 F)
1958	40.0 C (104.0 F)
1959	38.9 C (102.0 F)
1960	40.0 C (104.0 F)
1961	36.7 C (98.1 F)
1962	37.8 C (100.0 F)
1963	38.9 C (102.0 F)
1964	37.8 C (100.0 F)
1965	36.7 C (98.1 F)
1966	38.3 C (100.9 F)
1967	38.9 C (102.0 F)
1968	38.3 C (100.9 F)
1969	38.9 C (102.0 F)
1970	40.6 C (105.1 F)
1971	37.2 C (99.0 F)
1972	40.6 C (105.1 F)
1973	35.6 C (96.1 F)
1974	36.7 C (98.1 F)
1975	40.0 C (104.0 F)
1976	37.2 C (99.0 F)
1977	38.9 C (102.0 F)
1978	40.6 C (105.1 F)
1979	38.3 C (100.9 F)
1980	41.7 C (107.1 F)
1981	39.4 C (102.9 F)
1982	38.3 C (100.9 F)
1983	40.0 C (104.0 F)
1984	36.7 C (98.1 F)
1985	38.3 C (100.9 F)
1986	37.8 C (100.0 F)
1987	37.8 C (100.0 F)
1988	37.8 C (100.0 F)
1989	40.6 C (105.1 F)
1990	38.3 C (100.9 F)
1991	36.1 C (97.0 F)
1992	37.8 C (100.0 F)
1993	36.1 C (97.0 F)
1994	42.2 C (108.0 F)
1995	39.4 C (102.9 F)
1996	38.9 C (102.0 F)
1997	36.7 C (98.1 F)
1998	41.1 C (106.0 F)
1999	36.7 C (98.1 F)
2000	38.9 C (102.0 F)
2001	36.7 C (98.1 F)
2002	37.8 C (100.0 F)
2003	42.8 C (109.0 F)
2004	38.3 C (100.9 F)
2005	40.6 C (105.1 F)
2006	38.3 C (100.9 F)
2007	37.2 C (99.0 F)
2008	40.6 C (105.1 F)
2009	36.1 C (97.0 F)
2010	41.7 C (107.1 F)
2011	41.1 C (106.0 F)
2012	40.0 C (104.0 F)
2013	39.4 C (102.9 F)
2014	41.1 C (106.0 F)
2015	38.9 C (102.0 F)
2016	40.0 C (104.0 F)
2017	40.6 C (105.1 F)
2018	41.1 C (106.0 F)
2019	37.8 C (100.0 F)
2020	41.7 C (107.1 F)
2021	31.7 C (89.1 F)
2022	41.1 C (106.0 F)

Coldest night (TNn)

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
Year	Coldest night (TNn)
1896	3.9 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)
1973	3.9 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)

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
Year	Wettest day (Rx1day)
1896	71.9 mm (2.8 in)
1897	38.1 mm (1.5 in)
1898	25.4 mm (1.0 in)
1910	23.1 mm (0.9 in)
1911	44.5 mm (1.8 in)
1912	31.8 mm (1.3 in)
1913	63.5 mm (2.5 in)
1914	114.3 mm (4.5 in)
1915	50.8 mm (2.0 in)
1940	45.2 mm (1.8 in)
1941	71.1 mm (2.8 in)
1942	65.8 mm (2.6 in)
1943	36.1 mm (1.4 in)
1944	39.4 mm (1.6 in)
1945	43.2 mm (1.7 in)
1948	27.9 mm (1.1 in)
1949	51.3 mm (2.0 in)
1950	41.9 mm (1.6 in)
1951	25.9 mm (1.0 in)
1952	28.2 mm (1.1 in)
1953	18.3 mm (0.7 in)
1954	46.2 mm (1.8 in)
1955	69.9 mm (2.8 in)
1956	13.5 mm (0.5 in)
1957	46.5 mm (1.8 in)
1958	64.5 mm (2.5 in)
1959	30.0 mm (1.2 in)
1960	41.7 mm (1.6 in)
1961	31.0 mm (1.2 in)
1962	51.6 mm (2.0 in)
1963	30.5 mm (1.2 in)
1964	52.6 mm (2.1 in)
1965	40.9 mm (1.6 in)
1966	25.9 mm (1.0 in)
1967	32.0 mm (1.3 in)
1968	61.0 mm (2.4 in)
1969	31.8 mm (1.3 in)
1970	78.0 mm (3.1 in)
1971	35.8 mm (1.4 in)
1972	37.6 mm (1.5 in)
1973	25.4 mm (1.0 in)
1974	45.0 mm (1.8 in)
1975	36.1 mm (1.4 in)
1976	43.7 mm (1.7 in)
1977	57.7 mm (2.3 in)
1978	40.6 mm (1.6 in)
1979	35.3 mm (1.4 in)
1980	37.1 mm (1.5 in)
1981	46.7 mm (1.8 in)
1982	34.5 mm (1.4 in)
1983	45.7 mm (1.8 in)
1984	54.6 mm (2.1 in)
1985	50.8 mm (2.0 in)
1986	75.2 mm (3.0 in)
1987	75.2 mm (3.0 in)
1988	50.3 mm (2.0 in)
1989	41.4 mm (1.6 in)
1990	61.5 mm (2.4 in)
1991	54.1 mm (2.1 in)
1992	45.5 mm (1.8 in)
1993	28.2 mm (1.1 in)
1994	16.3 mm (0.6 in)
1995	47.5 mm (1.9 in)
1996	51.3 mm (2.0 in)
1997	33.0 mm (1.3 in)
1998	12.7 mm (0.5 in)
1999	48.5 mm (1.9 in)
2000	58.4 mm (2.3 in)
2001	17.8 mm (0.7 in)
2002	35.3 mm (1.4 in)
2003	66.8 mm (2.6 in)
2004	61.0 mm (2.4 in)
2005	68.6 mm (2.7 in)
2006	33.0 mm (1.3 in)
2007	45.7 mm (1.8 in)
2008	40.6 mm (1.6 in)
2009	50.8 mm (2.0 in)
2010	58.4 mm (2.3 in)
2011	24.9 mm (1.0 in)
2012	46.5 mm (1.8 in)
2013	38.1 mm (1.5 in)
2014	49.0 mm (1.9 in)
2015	31.5 mm (1.2 in)
2016	38.1 mm (1.5 in)
2017	49.3 mm (1.9 in)
2018	48.3 mm (1.9 in)
2019	81.3 mm (3.2 in)
2020	14.5 mm (0.6 in)
2021	7.6 mm (0.30 in)
2022	69.9 mm (2.8 in)

Wettest five days (Rx5day)

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
Year	Wettest five days (Rx5day)
1896	0.0 mm (0.00 in)
1897	96.5 mm (3.8 in)
1898	42.4 mm (1.7 in)
1910	67.3 mm (2.6 in)
1911	61.4 mm (2.4 in)
1912	60.4 mm (2.4 in)
1913	71.1 mm (2.8 in)
1914	118.4 mm (4.7 in)
1915	62.7 mm (2.5 in)
1940	77.4 mm (3.0 in)
1941	124.4 mm (4.9 in)
1942	99.6 mm (3.9 in)
1943	78.7 mm (3.1 in)
1944	45.7 mm (1.8 in)
1945	63.5 mm (2.5 in)
1948	30.2 mm (1.2 in)
1949	102.3 mm (4.0 in)
1950	59.1 mm (2.3 in)
1951	40.1 mm (1.6 in)
1952	47.0 mm (1.9 in)
1953	26.9 mm (1.1 in)
1954	61.4 mm (2.4 in)
1955	76.8 mm (3.0 in)
1956	26.0 mm (1.0 in)
1957	83.6 mm (3.3 in)
1958	71.3 mm (2.8 in)
1959	44.7 mm (1.8 in)
1960	67.1 mm (2.6 in)
1961	31.0 mm (1.2 in)
1962	66.3 mm (2.6 in)
1963	54.6 mm (2.1 in)
1964	57.4 mm (2.3 in)
1965	40.9 mm (1.6 in)
1966	52.0 mm (2.0 in)
1967	43.2 mm (1.7 in)
1968	82.6 mm (3.3 in)
1969	32.3 mm (1.3 in)
1970	91.2 mm (3.6 in)
1971	59.9 mm (2.4 in)
1972	70.4 mm (2.8 in)
1973	30.7 mm (1.2 in)
1974	140.6 mm (5.5 in)
1975	48.0 mm (1.9 in)
1976	59.5 mm (2.3 in)
1977	70.7 mm (2.8 in)
1978	110.6 mm (4.4 in)
1979	45.8 mm (1.8 in)
1980	62.8 mm (2.5 in)
1981	106.4 mm (4.2 in)
1982	65.4 mm (2.6 in)
1983	56.9 mm (2.2 in)
1984	65.8 mm (2.6 in)
1985	60.6 mm (2.4 in)
1986	87.4 mm (3.4 in)
1987	83.9 mm (3.3 in)
1988	67.9 mm (2.7 in)
1989	46.5 mm (1.8 in)
1990	105.7 mm (4.2 in)
1991	96.8 mm (3.8 in)
1992	47.5 mm (1.9 in)
1993	28.2 mm (1.1 in)
1994	19.1 mm (0.8 in)
1995	68.1 mm (2.7 in)
1996	70.6 mm (2.8 in)
1997	33.0 mm (1.3 in)
1998	12.7 mm (0.5 in)
1999	52.6 mm (2.1 in)
2000	74.9 mm (2.9 in)
2001	20.8 mm (0.8 in)
2002	82.1 mm (3.2 in)
2003	104.1 mm (4.1 in)
2004	107.9 mm (4.2 in)
2005	80.0 mm (3.1 in)
2006	52.6 mm (2.1 in)
2007	58.4 mm (2.3 in)
2008	99.1 mm (3.9 in)
2009	53.3 mm (2.1 in)
2010	138.4 mm (5.4 in)
2011	30.0 mm (1.2 in)
2012	85.1 mm (3.4 in)
2013	69.3 mm (2.7 in)
2014	51.8 mm (2.0 in)
2015	60.3 mm (2.4 in)
2016	58.9 mm (2.3 in)
2017	67.8 mm (2.7 in)
2018	56.2 mm (2.2 in)
2019	91.2 mm (3.6 in)
2020	16.0 mm (0.6 in)
2021	7.6 mm (0.30 in)
2022	87.7 mm (3.5 in)

Longest dry spell (CDD)

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
Year	Longest dry spell (CDD)
1896	62 days
1897	74 days
1898	60 days
1910	77 days
1911	44 days
1912	46 days
1913	40 days
1914	77 days
1915	27 days
1940	35 days
1941	30 days
1942	40 days
1943	73 days
1944	78 days
1945	31 days
1948	54 days
1949	66 days
1950	90 days
1951	35 days
1952	53 days
1953	43 days
1954	86 days
1955	102 days
1956	87 days
1957	37 days
1958	27 days
1959	58 days
1960	71 days
1961	41 days
1962	45 days
1963	38 days
1964	47 days
1965	60 days
1966	84 days
1967	65 days
1968	32 days
1969	81 days
1970	66 days
1971	104 days
1972	48 days
1973	19 days
1974	64 days
1975	60 days
1976	58 days
1977	54 days
1978	54 days
1979	85 days
1980	56 days
1981	70 days
1982	55 days
1983	35 days
1984	105 days
1985	36 days
1986	64 days
1987	54 days
1988	60 days
1989	48 days
1990	36 days
1991	42 days
1992	77 days
1993	61 days
1994	61 days
1995	91 days
1996	93 days
1997	68 days
1998	122 days
1999	66 days
2000	106 days
2001	90 days
2002	65 days
2003	82 days
2004	32 days
2005	60 days
2006	101 days
2007	48 days
2008	113 days
2009	30 days
2010	96 days
2011	169 days
2012	59 days
2013	82 days
2014	56 days
2015	30 days
2016	30 days
2017	41 days
2018	48 days
2019	41 days
2020	66 days
2021	68 days
2022	85 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
Measure	Median, all years	Earliest period	Recent period (1960 to 2017)	Recent against earliest	Fitted trend
Last spring frost	4 April	n/a	5 April	n/a	+0.3 days per decade
First autumn frost	31 October	n/a	31 October	n/a	+1.0 days per decade
Growing days	211 days	n/a	212 days	n/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 in	A day with at least	Note
2 years	44.4 mm (1.7 in)
5 years	60.5 mm (2.4 in)
10 years	70.0 mm (2.8 in)
25 years	80.8 mm (3.2 in)
50 years	88.1 mm (3.5 in)
100 years	94.8 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

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