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Built 2026-10-16 (16 October 2026)

Grahamville Threshold Days by Year

4 fixed thresholds counted per year at Grahamville (ASN00041271): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Grahamville Thresholds

  • Grahamville: days with 10 mm (0.39 in) or more of precipitation in 49 years, most in 1978 with 33.
  • Grahamville: days with 25 mm (0.98 in) or more of precipitation in 49 years, most in 1981 with 13.
  • Grahamville: days with 50 mm (1.97 in) or more of precipitation in 35 years, most in 1959 with 4.
  • Grahamville: days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1974 with 1.
  • 4 fixed thresholds have at least one qualifying day at Grahamville.
49 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Grahamville Days per year at Grahamville with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 33 in 1978. 0102030401959: 291960: 211961: 191962: 171963: 191964: 211965: 171966: 201967: 181968: 201969: 191970: 211971: 241972: 241973: 261974: 221975: 261976: 241977: 91978: 331979: 181980: 221981: 251982: 141983: 301984: 261985: 181986: 151987: 181988: 251989: 191990: 201991: 161992: 161993: 111994: 101995: 221996: 191997: 161998: 231999: 242000: 122001: 202002: 152003: 142005: 152006: 152007: 202008: 161959196419691974197919841989199419992005
Days per year at Grahamville with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 33 in 1978.
Days with 10 mm (0.39 in) or more of precipitation per year at Grahamville
YearDaysDecade average
19592929
19602119.1
19611919.1
19621719.1
19631919.1
19642119.1
19651719.1
19662019.1
19671819.1
19682019.1
19691919.1
19702122.7
19712422.7
19722422.7
19732622.7
19742222.7
19752622.7
19762422.7
1977922.7
19783322.7
19791822.7
19802221.2
19812521.2
19821421.2
19833021.2
19842621.2
19851821.2
19861521.2
19871821.2
19882521.2
19891921.2
19902017.7
19911617.7
19921617.7
19931117.7
19941017.7
19952217.7
19961917.7
19971617.7
19982317.7
19992417.7
20001215.9
20012015.9
20021515.9
20031415.9
20051515.9
20061515.9
20072015.9
20081615.9
First to last qualifying date each year at Grahamville For each year, a bar from the first to the last day at Grahamville meeting 10 mm (0.39 in). 1959: 3 January 1959 to 24 December 19591960: 6 January 1960 to 13 December 19601961: 4 January 1961 to 15 December 19611962: 14 January 1962 to 14 December 19621963: 1 January 1963 to 14 December 19631964: 9 February 1964 to 27 December 19641965: 31 January 1965 to 15 December 19651966: 23 January 1966 to 31 December 19661967: 2 January 1967 to 25 December 19671968: 6 January 1968 to 20 December 19681969: 7 February 1969 to 31 December 19691970: 2 January 1970 to 30 December 19701971: 13 January 1971 to 28 December 19711972: 15 January 1972 to 29 December 19721973: 13 January 1973 to 23 December 19731974: 1 January 1974 to 30 December 19741975: 7 January 1975 to 24 December 19751976: 10 January 1976 to 25 December 19761977: 17 January 1977 to 18 November 19771978: 5 January 1978 to 24 December 19781979: 10 February 1979 to 22 December 19791980: 6 January 1980 to 30 December 19801981: 6 February 1981 to 25 December 19811982: 6 January 1982 to 3 December 19821983: 1 January 1983 to 17 December 19831984: 5 January 1984 to 30 December 19841985: 1 January 1985 to 17 December 19851986: 25 January 1986 to 19 December 19861987: 8 January 1987 to 24 December 19871988: 5 January 1988 to 19 December 19881989: 3 January 1989 to 5 December 19891990: 16 January 1990 to 14 December 19901991: 21 January 1991 to 20 December 19911992: 1 January 1992 to 10 December 19921993: 5 January 1993 to 23 December 19931994: 15 January 1994 to 22 November 19941995: 9 January 1995 to 24 December 19951996: 3 January 1996 to 31 December 19961997: 2 January 1997 to 24 December 19971998: 29 January 1998 to 18 December 19981999: 1 January 1999 to 28 December 19992000: 3 January 2000 to 29 December 20002001: 9 January 2001 to 16 December 20012002: 3 February 2002 to 26 December 20022003: 12 February 2003 to 13 December 20032005: 5 January 2005 to 9 December 20052006: 5 January 2006 to 28 December 20062007: 26 January 2007 to 23 December 20072008: 6 February 2008 to 28 December 20081959196619731980198719942001JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Grahamville meeting 10 mm (0.39 in).
First to last qualifying date each year at Grahamville
YearFirst dateLast date
19591959-01-031959-12-24
19601960-01-061960-12-13
19611961-01-041961-12-15
19621962-01-141962-12-14
19631963-01-011963-12-14
19641964-02-091964-12-27
19651965-01-311965-12-15
19661966-01-231966-12-31
19671967-01-021967-12-25
19681968-01-061968-12-20
19691969-02-071969-12-31
19701970-01-021970-12-30
19711971-01-131971-12-28
19721972-01-151972-12-29
19731973-01-131973-12-23
19741974-01-011974-12-30
19751975-01-071975-12-24
19761976-01-101976-12-25
19771977-01-171977-11-18
19781978-01-051978-12-24
19791979-02-101979-12-22
19801980-01-061980-12-30
19811981-02-061981-12-25
19821982-01-061982-12-03
19831983-01-011983-12-17
19841984-01-051984-12-30
19851985-01-011985-12-17
19861986-01-251986-12-19
19871987-01-081987-12-24
19881988-01-051988-12-19
19891989-01-031989-12-05
19901990-01-161990-12-14
19911991-01-211991-12-20
19921992-01-011992-12-10
19931993-01-051993-12-23
19941994-01-151994-11-22
19951995-01-091995-12-24
19961996-01-031996-12-31
19971997-01-021997-12-24
19981998-01-291998-12-18
19991999-01-011999-12-28
20002000-01-032000-12-29
20012001-01-092001-12-16
20022002-02-032002-12-26
20032003-02-122003-12-13
20052005-01-052005-12-09
20062006-01-052006-12-28
20072007-01-262007-12-23
20082008-02-062008-12-28

Every Fixed Threshold

Fixed thresholds at Grahamville
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4933197816
25 mm (0.98 in): Days with 25 mm or more rain491319815
50 mm (1.97 in): Days with 50 mm or more rain35419591
100 mm (3.94 in): Days with 100 mm or more rain2119741

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1959.

Download the Data

  • Data for Grahamville 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).