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Built 2026-10-19 (19 October 2026)

Ortonville Threshold Days by Year (USC00216224)

6 fixed thresholds counted per year at Ortonville (USC00216224): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ortonville Thresholds

  • Ortonville: days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 1946 with 30.
  • Ortonville: days with 25 mm (0.98 in) or more of precipitation in 39 years, most in 1942 with 10.
  • Ortonville: days with 50 mm (1.97 in) or more of precipitation in 24 years, most in 1942 with 3.
  • Ortonville: days with 10 cm (3.9 in) or more of snowfall in 13 years, most in 1975 with 9.
  • 6 fixed thresholds have at least one qualifying day at Ortonville.
40 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Ortonville Days per year at Ortonville with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1946. 01020301892: 231893: 201894: 181941: 191942: 241943: 191945: 161946: 301949: 201950: 151951: 251952: 101953: 251954: 201955: 141958: 161959: 111960: 241961: 171962: 201963: 221964: 91965: 271966: 151967: 121968: 141969: 151970: 181971: 171972: 171973: 101974: 151975: 161976: 31977: 241978: 111979: 151980: 111981: 121982: 161892194219491953195919631967197119751979
Days per year at Ortonville with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 30 in 1946.
Days with 10 mm (0.39 in) or more of precipitation per year at Ortonville
YearDaysDecade average
18922320.3
18932020.3
18941820.3
19411921.3
19422421.3
19431921.3
19451621.3
19463021.3
19492021.3
19501517
19512517
19521017
19532517
19542017
19551417
19581617
19591117
19602417.5
19611717.5
19622017.5
19632217.5
1964917.5
19652717.5
19661517.5
19671217.5
19681417.5
19691517.5
19701814.6
19711714.6
19721714.6
19731014.6
19741514.6
19751614.6
1976314.6
19772414.6
19781114.6
19791514.6
19801113
19811213
19821613
First to last qualifying date each year at Ortonville For each year, a bar from the first to the last day at Ortonville meeting 10 mm (0.39 in). 1892: 22 March 1892 to 30 December 18921893: 11 January 1893 to 23 December 18931894: 20 March 1894 to 8 October 18941941: 2 April 1941 to 26 October 19411942: 25 March 1942 to 28 October 19421943: 10 February 1943 to 31 October 19431945: 16 March 1945 to 24 December 19451946: 6 February 1946 to 6 November 19461949: 3 January 1949 to 10 December 19491950: 26 March 1950 to 2 October 19501951: 28 February 1951 to 4 December 19511952: 15 January 1952 to 18 November 19521953: 15 January 1953 to 21 November 19531954: 20 February 1954 to 26 October 19541955: 20 February 1955 to 4 December 19551958: 27 February 1958 to 18 November 19581959: 17 April 1959 to 28 December 19591960: 2 April 1960 to 4 December 19601961: 5 April 1961 to 11 October 19611962: 15 February 1962 to 23 November 19621963: 13 January 1963 to 8 December 19631964: 20 March 1964 to 14 September 19641965: 3 March 1965 to 11 December 19651966: 9 February 1966 to 14 October 19661967: 7 January 1967 to 7 October 19671968: 12 January 1968 to 18 October 19681969: 9 April 1969 to 23 December 19691970: 3 March 1970 to 11 November 19701971: 27 April 1971 to 16 November 19711972: 3 March 1972 to 2 November 19721973: 24 March 1973 to 21 November 19731974: 1 April 1974 to 1 November 19741975: 9 January 1975 to 24 October 19751976: 12 March 1976 to 8 September 19761977: 23 February 1977 to 17 December 19771978: 9 April 1978 to 28 December 19781979: 19 January 1979 to 31 October 19791980: 30 May 1980 to 16 October 19801981: 29 March 1981 to 14 October 19811982: 20 March 1982 to 10 November 198218921943195119581963196819731978JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ortonville meeting 10 mm (0.39 in).
First to last qualifying date each year at Ortonville
YearFirst dateLast date
18921892-03-221892-12-30
18931893-01-111893-12-23
18941894-03-201894-10-08
19411941-04-021941-10-26
19421942-03-251942-10-28
19431943-02-101943-10-31
19451945-03-161945-12-24
19461946-02-061946-11-06
19491949-01-031949-12-10
19501950-03-261950-10-02
19511951-02-281951-12-04
19521952-01-151952-11-18
19531953-01-151953-11-21
19541954-02-201954-10-26
19551955-02-201955-12-04
19581958-02-271958-11-18
19591959-04-171959-12-28
19601960-04-021960-12-04
19611961-04-051961-10-11
19621962-02-151962-11-23
19631963-01-131963-12-08
19641964-03-201964-09-14
19651965-03-031965-12-11
19661966-02-091966-10-14
19671967-01-071967-10-07
19681968-01-121968-10-18
19691969-04-091969-12-23
19701970-03-031970-11-11
19711971-04-271971-11-16
19721972-03-031972-11-02
19731973-03-241973-11-21
19741974-04-011974-11-01
19751975-01-091975-10-24
19761976-03-121976-09-08
19771977-02-231977-12-17
19781978-04-091978-12-28
19791979-01-191979-10-31
19801980-05-301980-10-16
19811981-03-291981-10-14
19821982-03-201982-11-10

Every Fixed Threshold

Fixed thresholds at Ortonville
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4030194616
25 mm (0.98 in): Days with 25 mm or more rain391019422
50 mm (1.97 in): Days with 50 mm or more rain24319421
100 mm (3.94 in): Days with 100 mm or more rain1119491
10 cm (3.9 in): Days with 10 cm or more snowfall13919758
25 cm (9.8 in): Days with 25 cm or more snowfall2219752

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1892.

Download the Data

  • Data for Ortonville 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).