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Built 2026-10-19 (19 October 2026)

Mill Creek Dam Threshold Days by Year (USC00455387)

5 fixed thresholds counted per year at Mill Creek Dam (USC00455387): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mill Creek Dam Thresholds

  • Mill Creek Dam: days with 10 mm (0.39 in) or more of precipitation in 53 years, most in 1981 with 22.
  • Mill Creek Dam: days with 25 mm (0.98 in) or more of precipitation in 35 years, most in 2020 with 7.
  • Mill Creek Dam: days with 10 cm (3.9 in) or more of snowfall in 22 years, most in 1950 with 4.
  • Mill Creek Dam: days with 50 mm (1.97 in) or more of precipitation in 1 years, most in 1992 with 1.
  • 5 fixed thresholds have at least one qualifying day at Mill Creek Dam.
53 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Mill Creek Dam Days per year at Mill Creek Dam with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 22 in 1981. 01020301949: 91950: 111951: 121952: 61953: 161954: 101955: 71964: 91965: 91966: 111967: 121968: 151969: 111970: 161971: 111972: 141973: 201974: 111975: 131976: 81977: 91978: 101979: 91980: 141981: 221982: 201983: 191984: 161985: 111986: 141987: 101988: 141989: 121990: 131991: 201992: 91995: 141996: 171997: 141998: 101999: 62000: 172001: 102002: 62003: 132004: 132005: 92006: 152007: 62009: 122013: 122020: 172026: 6194919551969197519811987199520012007
Days per year at Mill Creek Dam with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 22 in 1981.
Days with 10 mm (0.39 in) or more of precipitation per year at Mill Creek Dam
YearDaysDecade average
194999
19501110.3
19511210.3
1952610.3
19531610.3
19541010.3
1955710.3
1964911.2
1965911.2
19661111.2
19671211.2
19681511.2
19691111.2
19701612.1
19711112.1
19721412.1
19732012.1
19741112.1
19751312.1
1976812.1
1977912.1
19781012.1
1979912.1
19801415.2
19812215.2
19822015.2
19831915.2
19841615.2
19851115.2
19861415.2
19871015.2
19881415.2
19891215.2
19901312.9
19912012.9
1992912.9
19951412.9
19961712.9
19971412.9
19981012.9
1999612.9
20001711.2
20011011.2
2002611.2
20031311.2
20041311.2
2005911.2
20061511.2
2007611.2
20091211.2
20131212
20201711.5
2026611.5
First to last qualifying date each year at Mill Creek Dam For each year, a bar from the first to the last day at Mill Creek Dam meeting 10 mm (0.39 in). 1949: 19 February 1949 to 16 December 19491950: 7 June 1950 to 7 December 19501951: 2 January 1951 to 23 October 19511952: 16 February 1952 to 30 June 19521953: 9 January 1953 to 3 December 19531954: 28 January 1954 to 30 December 19541955: 13 April 1955 to 16 December 19551964: 27 January 1964 to 24 December 19641965: 6 January 1965 to 23 November 19651966: 6 January 1966 to 13 December 19661967: 20 January 1967 to 26 December 19671968: 5 February 1968 to 30 December 19681969: 2 January 1969 to 26 December 19691970: 12 January 1970 to 30 November 19701971: 20 January 1971 to 26 October 19711972: 24 January 1972 to 18 December 19721973: 11 February 1973 to 28 December 19731974: 17 January 1974 to 30 December 19741975: 14 January 1975 to 26 December 19751976: 16 February 1976 to 1 November 19761977: 3 January 1977 to 18 December 19771978: 24 March 1978 to 11 December 19781979: 22 January 1979 to 19 November 19791980: 5 January 1980 to 26 December 19801981: 24 January 1981 to 28 December 19811982: 3 January 1982 to 6 December 19821983: 6 January 1983 to 30 December 19831984: 13 February 1984 to 10 December 19841985: 21 January 1985 to 8 December 19851986: 20 January 1986 to 28 November 19861987: 3 January 1987 to 2 December 19871988: 10 January 1988 to 19 December 19881989: 9 January 1989 to 5 December 19891990: 13 February 1990 to 11 December 19901991: 20 March 1991 to 7 December 19911992: 30 April 1992 to 22 November 19921995: 31 January 1995 to 12 December 19951996: 17 January 1996 to 29 December 19961997: 1 January 1997 to 16 December 19971998: 12 January 1998 to 1 December 19981999: 15 January 1999 to 2 December 19992000: 4 January 2000 to 26 December 20002001: 16 January 2001 to 19 November 20012002: 8 February 2002 to 30 December 20022003: 27 January 2003 to 30 December 20032004: 26 January 2004 to 3 November 20042005: 28 March 2005 to 31 December 20052006: 3 January 2006 to 26 December 20062007: 8 March 2007 to 26 December 20072009: 2 January 2009 to 14 December 20092013: 28 January 2013 to 23 December 20132020: 23 January 2020 to 28 December 20202026: 24 February 2026 to 23 April 202619491964197119781985199220012009JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Mill Creek Dam meeting 10 mm (0.39 in).
First to last qualifying date each year at Mill Creek Dam
YearFirst dateLast date
19491949-02-191949-12-16
19501950-06-071950-12-07
19511951-01-021951-10-23
19521952-02-161952-06-30
19531953-01-091953-12-03
19541954-01-281954-12-30
19551955-04-131955-12-16
19641964-01-271964-12-24
19651965-01-061965-11-23
19661966-01-061966-12-13
19671967-01-201967-12-26
19681968-02-051968-12-30
19691969-01-021969-12-26
19701970-01-121970-11-30
19711971-01-201971-10-26
19721972-01-241972-12-18
19731973-02-111973-12-28
19741974-01-171974-12-30
19751975-01-141975-12-26
19761976-02-161976-11-01
19771977-01-031977-12-18
19781978-03-241978-12-11
19791979-01-221979-11-19
19801980-01-051980-12-26
19811981-01-241981-12-28
19821982-01-031982-12-06
19831983-01-061983-12-30
19841984-02-131984-12-10
19851985-01-211985-12-08
19861986-01-201986-11-28
19871987-01-031987-12-02
19881988-01-101988-12-19
19891989-01-091989-12-05
19901990-02-131990-12-11
19911991-03-201991-12-07
19921992-04-301992-11-22
19951995-01-311995-12-12
19961996-01-171996-12-29
19971997-01-011997-12-16
19981998-01-121998-12-01
19991999-01-151999-12-02
20002000-01-042000-12-26
20012001-01-162001-11-19
20022002-02-082002-12-30
20032003-01-272003-12-30
20042004-01-262004-11-03
20052005-03-282005-12-31
20062006-01-032006-12-26
20072007-03-082007-12-26
20092009-01-022009-12-14
20132013-01-282013-12-23
20202020-01-232020-12-28
20262026-02-242026-04-23

Every Fixed Threshold

Fixed thresholds at Mill Creek Dam
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain532219816
25 mm (0.98 in): Days with 25 mm or more rain35720201
50 mm (1.97 in): Days with 50 mm or more rain1119921
10 cm (3.9 in): Days with 10 cm or more snowfall22419501
25 cm (9.8 in): Days with 25 cm or more snowfall1119851

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.

Download the Data

  • Data for Mill Creek Dam 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).