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Built 2026-10-19 (19 October 2026)

Monticello (River) Threshold Days by Year (USC00115792)

6 fixed thresholds counted per year at Monticello (River) (USC00115792): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Monticello (River) Thresholds

  • Monticello (River): days with 10 mm (0.39 in) or more of precipitation in 37 years, most in 1985 with 43.
  • Monticello (River): days with 25 mm (0.98 in) or more of precipitation in 37 years, most in 1977 with 16.
  • Monticello (River): days with 50 mm (1.97 in) or more of precipitation in 30 years, most in 1990 with 4.
  • Monticello (River): days with 10 cm (3.9 in) or more of snowfall in 21 years, most in 1982 with 4.
  • 6 fixed thresholds have at least one qualifying day at Monticello (River).
37 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Monticello (River) Days per year at Monticello (River) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 43 in 1985. 02040601965: 311966: 281967: 351968: 271969: 311970: 241972: 361973: 421974: 411975: 321976: 271977: 331978: 291979: 251980: 291981: 411982: 381983: 361984: 291985: 431986: 251987: 331988: 251989: 231990: 401992: 301993: 401994: 331995: 331996: 321997: 271998: 411999: 332000: 342001: 232002: 352007: 301965196919741978198219861990199519992007
Days per year at Monticello (River) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 43 in 1985.
Days with 10 mm (0.39 in) or more of precipitation per year at Monticello (River)
YearDaysDecade average
19653130.4
19662830.4
19673530.4
19682730.4
19693130.4
19702432.1
19723632.1
19734232.1
19744132.1
19753232.1
19762732.1
19773332.1
19782932.1
19792532.1
19802932.2
19814132.2
19823832.2
19833632.2
19842932.2
19854332.2
19862532.2
19873332.2
19882532.2
19892332.2
19904034.3
19923034.3
19934034.3
19943334.3
19953334.3
19963234.3
19972734.3
19984134.3
19993334.3
20003430.5
20012330.5
20023530.5
20073030.5
First to last qualifying date each year at Monticello (River) For each year, a bar from the first to the last day at Monticello (River) meeting 10 mm (0.39 in). 1965: 1 January 1965 to 25 December 19651966: 1 January 1966 to 9 December 19661967: 25 January 1967 to 22 December 19671968: 1 February 1968 to 28 December 19681969: 6 January 1969 to 7 December 19691970: 26 March 1970 to 22 December 19701972: 13 March 1972 to 30 December 19721973: 4 January 1973 to 27 December 19731974: 21 January 1974 to 24 December 19741975: 10 January 1975 to 15 December 19751976: 7 January 1976 to 31 October 19761977: 5 January 1977 to 14 December 19771978: 8 March 1978 to 31 December 19781979: 20 February 1979 to 24 December 19791980: 15 February 1980 to 9 December 19801981: 10 February 1981 to 23 December 19811982: 2 January 1982 to 24 December 19821983: 21 January 1983 to 21 December 19831984: 12 February 1984 to 31 December 19841985: 21 February 1985 to 10 December 19851986: 3 February 1986 to 1 December 19861987: 9 January 1987 to 27 December 19871988: 19 January 1988 to 27 December 19881989: 25 January 1989 to 14 November 19891990: 1 February 1990 to 29 December 19901992: 15 February 1992 to 29 December 19921993: 4 January 1993 to 14 December 19931994: 26 January 1994 to 17 December 19941995: 13 January 1995 to 19 December 19951996: 19 January 1996 to 30 November 19961997: 16 January 1997 to 25 December 19971998: 6 January 1998 to 10 November 19981999: 2 January 1999 to 5 December 19992000: 4 January 2000 to 13 December 20002001: 29 January 2001 to 17 December 20012002: 31 January 2002 to 25 December 20022007: 5 January 2007 to 16 December 200719651970197619811986199219972002JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Monticello (River) meeting 10 mm (0.39 in).
First to last qualifying date each year at Monticello (River)
YearFirst dateLast date
19651965-01-011965-12-25
19661966-01-011966-12-09
19671967-01-251967-12-22
19681968-02-011968-12-28
19691969-01-061969-12-07
19701970-03-261970-12-22
19721972-03-131972-12-30
19731973-01-041973-12-27
19741974-01-211974-12-24
19751975-01-101975-12-15
19761976-01-071976-10-31
19771977-01-051977-12-14
19781978-03-081978-12-31
19791979-02-201979-12-24
19801980-02-151980-12-09
19811981-02-101981-12-23
19821982-01-021982-12-24
19831983-01-211983-12-21
19841984-02-121984-12-31
19851985-02-211985-12-10
19861986-02-031986-12-01
19871987-01-091987-12-27
19881988-01-191988-12-27
19891989-01-251989-11-14
19901990-02-011990-12-29
19921992-02-151992-12-29
19931993-01-041993-12-14
19941994-01-261994-12-17
19951995-01-131995-12-19
19961996-01-191996-11-30
19971997-01-161997-12-25
19981998-01-061998-11-10
19991999-01-021999-12-05
20002000-01-042000-12-13
20012001-01-292001-12-17
20022002-01-312002-12-25
20072007-01-052007-12-16

Every Fixed Threshold

Fixed thresholds at Monticello (River)
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3743198530
25 mm (0.98 in): Days with 25 mm or more rain371619775
50 mm (1.97 in): Days with 50 mm or more rain30419901
100 mm (3.94 in): Days with 100 mm or more rain5119691
10 cm (3.9 in): Days with 10 cm or more snowfall21419824
25 cm (9.8 in): Days with 25 cm or more snowfall1119991

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1965.

Download the Data

  • Data for Monticello (River) 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).