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Built 2026-10-19 (19 October 2026)

Haddam Threshold Days by Year (USC00143323)

6 fixed thresholds counted per year at Haddam (USC00143323): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Haddam Thresholds

  • Haddam: days with 10 mm (0.39 in) or more of precipitation in 77 years, most in 1993 with 41.
  • Haddam: days with 25 mm (0.98 in) or more of precipitation in 77 years, most in 2007 with 18.
  • Haddam: days with 50 mm (1.97 in) or more of precipitation in 56 years, most in 1950 with 5.
  • Haddam: days with 10 cm (3.9 in) or more of snowfall in 33 years, most in 1952 with 5.
  • 6 fixed thresholds have at least one qualifying day at Haddam.
77 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Haddam Days per year at Haddam with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 41 in 1993. 02040601923: 261925: 261948: 231949: 271950: 251951: 361952: 231953: 231954: 251955: 141956: 121957: 271958: 251959: 291960: 271961: 261962: 241963: 221964: 211965: 241966: 171967: 341968: 261969: 261970: 221971: 251972: 271973: 361974: 131975: 251976: 221977: 361978: 241979: 251980: 181981: 261982: 361983: 251984: 321985: 301986: 341987: 371988: 131989: 191990: 241991: 141992: 311993: 411994: 261995: 281996: 231997: 201998: 301999: 182000: 202001: 282002: 212003: 242004: 232005: 302006: 272007: 302008: 292009: 282010: 302014: 212015: 272016: 242018: 212019: 292020: 222021: 192022: 232023: 202024: 212025: 212026: 231923195419621970197819861994200220102022
Days per year at Haddam with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 41 in 1993.
Days with 10 mm (0.39 in) or more of precipitation per year at Haddam
YearDaysDecade average
19232626
19252626
19482325
19492725
19502523.9
19513623.9
19522323.9
19532323.9
19542523.9
19551423.9
19561223.9
19572723.9
19582523.9
19592923.9
19602724.7
19612624.7
19622424.7
19632224.7
19642124.7
19652424.7
19661724.7
19673424.7
19682624.7
19692624.7
19702225.5
19712525.5
19722725.5
19733625.5
19741325.5
19752525.5
19762225.5
19773625.5
19782425.5
19792525.5
19801827
19812627
19823627
19832527
19843227
19853027
19863427
19873727
19881327
19891927
19902425.5
19911425.5
19923125.5
19934125.5
19942625.5
19952825.5
19962325.5
19972025.5
19983025.5
19991825.5
20002026
20012826
20022126
20032426
20042326
20053026
20062726
20073026
20082926
20092826
20103025.3
20142125.3
20152725.3
20162425.3
20182125.3
20192925.3
20202221.3
20211921.3
20222321.3
20232021.3
20242121.3
20252121.3
20262321.3
First to last qualifying date each year at Haddam For each year, a bar from the first to the last day at Haddam meeting 10 mm (0.39 in). 1923: 14 March 1923 to 12 November 19231925: 1 January 1925 to 7 November 19251948: 1 January 1948 to 6 November 19481949: 4 January 1949 to 22 December 19491950: 13 February 1950 to 7 October 19501951: 25 February 1951 to 6 October 19511952: 12 February 1952 to 22 December 19521953: 2 March 1953 to 3 December 19531954: 20 February 1954 to 26 October 19541955: 18 January 1955 to 26 September 19551956: 3 April 1956 to 5 November 19561957: 22 February 1957 to 18 November 19571958: 28 February 1958 to 18 November 19581959: 10 February 1959 to 28 December 19591960: 14 January 1960 to 19 October 19601961: 13 March 1961 to 16 November 19611962: 26 January 1962 to 16 November 19621963: 5 January 1963 to 27 October 19631964: 20 March 1964 to 11 December 19641965: 10 February 1965 to 24 December 19651966: 9 February 1966 to 28 December 19661967: 26 March 1967 to 15 October 19671968: 3 April 1968 to 15 November 19681969: 14 February 1969 to 30 October 19691970: 19 April 1970 to 9 November 19701971: 3 January 1971 to 30 December 19711972: 16 April 1972 to 30 December 19721973: 4 March 1973 to 24 December 19731974: 11 April 1974 to 10 November 19741975: 4 February 1975 to 26 November 19751976: 21 February 1976 to 30 October 19761977: 3 March 1977 to 9 November 19771978: 13 February 1978 to 26 November 19781979: 19 January 1979 to 21 November 19791980: 16 January 1980 to 8 December 19801981: 4 March 1981 to 17 December 19811982: 4 January 1982 to 27 December 19821983: 20 January 1983 to 26 November 19831984: 4 March 1984 to 16 December 19841985: 9 January 1985 to 18 October 19851986: 4 February 1986 to 7 December 19861987: 1 March 1987 to 27 December 19871988: 19 January 1988 to 20 December 19881989: 4 May 1989 to 27 October 19891990: 20 January 1990 to 4 November 19901991: 17 March 1991 to 12 December 19911992: 1 January 1992 to 13 December 19921993: 20 January 1993 to 13 December 19931994: 27 January 1994 to 7 December 19941995: 1 January 1995 to 5 October 19951996: 25 March 1996 to 17 November 19961997: 3 February 1997 to 25 December 19971998: 1 February 1998 to 10 November 19981999: 31 January 1999 to 23 November 19992000: 23 February 2000 to 1 November 20002001: 29 January 2001 to 24 November 20012002: 21 April 2002 to 30 October 20022003: 20 March 2003 to 10 December 20032004: 2 February 2004 to 11 November 20042005: 5 January 2005 to 28 November 20052006: 21 March 2006 to 31 December 20062007: 21 January 2007 to 11 December 20072008: 3 March 2008 to 11 November 20082009: 10 April 2009 to 9 December 20092010: 5 February 2010 to 13 November 20102014: 5 February 2014 to 23 October 20142015: 4 February 2015 to 14 December 20152016: 21 January 2016 to 26 December 20162018: 19 March 2018 to 27 December 20182019: 24 February 2019 to 29 December 20192020: 9 March 2020 to 30 December 20202021: 26 January 2021 to 28 October 20212022: 18 March 2022 to 13 December 20222023: 19 January 2023 to 26 December 20232024: 9 January 2024 to 19 November 20242025: 6 January 2025 to 21 November 20252026: 9 January 2026 to 1 October 202619231956196619761986199620062020JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Haddam meeting 10 mm (0.39 in).
First to last qualifying date each year at Haddam
YearFirst dateLast date
19231923-03-141923-11-12
19251925-01-011925-11-07
19481948-01-011948-11-06
19491949-01-041949-12-22
19501950-02-131950-10-07
19511951-02-251951-10-06
19521952-02-121952-12-22
19531953-03-021953-12-03
19541954-02-201954-10-26
19551955-01-181955-09-26
19561956-04-031956-11-05
19571957-02-221957-11-18
19581958-02-281958-11-18
19591959-02-101959-12-28
19601960-01-141960-10-19
19611961-03-131961-11-16
19621962-01-261962-11-16
19631963-01-051963-10-27
19641964-03-201964-12-11
19651965-02-101965-12-24
19661966-02-091966-12-28
19671967-03-261967-10-15
19681968-04-031968-11-15
19691969-02-141969-10-30
19701970-04-191970-11-09
19711971-01-031971-12-30
19721972-04-161972-12-30
19731973-03-041973-12-24
19741974-04-111974-11-10
19751975-02-041975-11-26
19761976-02-211976-10-30
19771977-03-031977-11-09
19781978-02-131978-11-26
19791979-01-191979-11-21
19801980-01-161980-12-08
19811981-03-041981-12-17
19821982-01-041982-12-27
19831983-01-201983-11-26
19841984-03-041984-12-16
19851985-01-091985-10-18
19861986-02-041986-12-07
19871987-03-011987-12-27
19881988-01-191988-12-20
19891989-05-041989-10-27
19901990-01-201990-11-04
19911991-03-171991-12-12
19921992-01-011992-12-13
19931993-01-201993-12-13
19941994-01-271994-12-07
19951995-01-011995-10-05
19961996-03-251996-11-17
19971997-02-031997-12-25
19981998-02-011998-11-10
19991999-01-311999-11-23
20002000-02-232000-11-01
20012001-01-292001-11-24
20022002-04-212002-10-30
20032003-03-202003-12-10
20042004-02-022004-11-11
20052005-01-052005-11-28
20062006-03-212006-12-31
20072007-01-212007-12-11
20082008-03-032008-11-11
20092009-04-102009-12-09
20102010-02-052010-11-13
20142014-02-052014-10-23
20152015-02-042015-12-14
20162016-01-212016-12-26
20182018-03-192018-12-27
20192019-02-242019-12-29
20202020-03-092020-12-30
20212021-01-262021-10-28
20222022-03-182022-12-13
20232023-01-192023-12-26
20242024-01-092024-11-19
20252025-01-062025-11-21
20262026-01-092026-10-01

Every Fixed Threshold

Fixed thresholds at Haddam
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain7741199323
25 mm (0.98 in): Days with 25 mm or more rain7718200713
50 mm (1.97 in): Days with 50 mm or more rain56519503
100 mm (3.94 in): Days with 100 mm or more rain7219501
10 cm (3.9 in): Days with 10 cm or more snowfall33519521
25 cm (9.8 in): Days with 25 cm or more snowfall1120251

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1923.

Download the Data

  • Data for Haddam 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).