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Built 2026-10-19 (19 October 2026)

Bunker Hill Threshold Days by Year (USC00411224)

6 fixed thresholds counted per year at Bunker Hill (USC00411224): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Bunker Hill Thresholds

  • Bunker Hill: days with 10 mm (0.39 in) or more of precipitation in 34 years, most in 1960 with 23.
  • Bunker Hill: days with 25 mm (0.98 in) or more of precipitation in 31 years, most in 1960 with 7.
  • Bunker Hill: days with 50 mm (1.97 in) or more of precipitation in 15 years, most in 1959 with 2.
  • Bunker Hill: days with 10 cm (3.9 in) or more of snowfall in 10 years, most in 1958 with 3.
  • 6 fixed thresholds have at least one qualifying day at Bunker Hill.
34 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Bunker Hill Days per year at Bunker Hill with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 23 in 1960. 01020301948: 121949: 221950: 151951: 81952: 111953: 101954: 121956: 101957: 131958: 151959: 211960: 231961: 141962: 91963: 111965: 131966: 81967: 161968: 71970: 101971: 151972: 171973: 71974: 91975: 81979: 141980: 101981: 141982: 141984: 131985: 181986: 161988: 161989: 12194819521957196119661971197519821988
Days per year at Bunker Hill with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 23 in 1960.
Days with 10 mm (0.39 in) or more of precipitation per year at Bunker Hill
YearDaysDecade average
19481217
19492217
19501512.8
1951812.8
19521112.8
19531012.8
19541212.8
19561012.8
19571312.8
19581512.8
19592112.8
19602312.6
19611412.6
1962912.6
19631112.6
19651312.6
1966812.6
19671612.6
1968712.6
19701011.4
19711511.4
19721711.4
1973711.4
1974911.4
1975811.4
19791411.4
19801014.1
19811414.1
19821414.1
19841314.1
19851814.1
19861614.1
19881614.1
19891214.1
First to last qualifying date each year at Bunker Hill For each year, a bar from the first to the last day at Bunker Hill meeting 10 mm (0.39 in). 1948: 1 March 1948 to 1 November 19481949: 12 February 1949 to 8 September 19491950: 4 June 1950 to 1 October 19501951: 24 February 1951 to 7 September 19511952: 20 April 1952 to 25 November 19521953: 1 March 1953 to 20 October 19531954: 1 May 1954 to 7 October 19541956: 23 May 1956 to 19 August 19561957: 2 March 1957 to 13 October 19571958: 11 February 1958 to 17 November 19581959: 5 May 1959 to 25 December 19591960: 10 May 1960 to 9 December 19601961: 17 March 1961 to 15 November 19611962: 26 January 1962 to 23 September 19621963: 16 February 1963 to 1 September 19631965: 12 March 1965 to 17 October 19651966: 27 February 1966 to 23 August 19661967: 11 April 1967 to 27 September 19671968: 28 April 1968 to 17 July 19681970: 1 April 1970 to 16 September 19701971: 19 April 1971 to 2 December 19711972: 10 May 1972 to 20 November 19721973: 23 March 1973 to 11 October 19731974: 9 March 1974 to 27 October 19741975: 11 May 1975 to 19 November 19751979: 18 March 1979 to 14 September 19791980: 28 March 1980 to 7 December 19801981: 29 May 1981 to 16 October 19811982: 2 January 1982 to 26 December 19821984: 22 March 1984 to 15 October 19841985: 12 March 1985 to 17 October 19851986: 20 April 1986 to 4 November 19861988: 16 April 1988 to 5 October 19881989: 16 May 1989 to 11 September 19891948195319591965197119791985JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Bunker Hill meeting 10 mm (0.39 in).
First to last qualifying date each year at Bunker Hill
YearFirst dateLast date
19481948-03-011948-11-01
19491949-02-121949-09-08
19501950-06-041950-10-01
19511951-02-241951-09-07
19521952-04-201952-11-25
19531953-03-011953-10-20
19541954-05-011954-10-07
19561956-05-231956-08-19
19571957-03-021957-10-13
19581958-02-111958-11-17
19591959-05-051959-12-25
19601960-05-101960-12-09
19611961-03-171961-11-15
19621962-01-261962-09-23
19631963-02-161963-09-01
19651965-03-121965-10-17
19661966-02-271966-08-23
19671967-04-111967-09-27
19681968-04-281968-07-17
19701970-04-011970-09-16
19711971-04-191971-12-02
19721972-05-101972-11-20
19731973-03-231973-10-11
19741974-03-091974-10-27
19751975-05-111975-11-19
19791979-03-181979-09-14
19801980-03-281980-12-07
19811981-05-291981-10-16
19821982-01-021982-12-26
19841984-03-221984-10-15
19851985-03-121985-10-17
19861986-04-201986-11-04
19881988-04-161988-10-05
19891989-05-161989-09-11

Every Fixed Threshold

Fixed thresholds at Bunker Hill
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3423196012
25 mm (0.98 in): Days with 25 mm or more rain31719601
50 mm (1.97 in): Days with 50 mm or more rain15219591
100 mm (3.94 in): Days with 100 mm or more rain1119591
10 cm (3.9 in): Days with 10 cm or more snowfall10319581
25 cm (9.8 in): Days with 25 cm or more snowfall1119611

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1948.

Download the Data

  • Data for Bunker Hill 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).