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Built 2026-10-19 (19 October 2026)

Coamo 2 SW Threshold Days by Year (RQC00662723)

5 fixed thresholds counted per year at Coamo 2 SW (RQC00662723): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Coamo 2 SW Thresholds

  • Coamo 2 SW: days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 1999 with 44.
  • Coamo 2 SW: days with 25 mm (0.98 in) or more of precipitation in 40 years, most in 1987 with 22.
  • Coamo 2 SW: days with 50 mm (1.97 in) or more of precipitation in 34 years, most in 1970 with 8.
  • Coamo 2 SW: days with 100 mm (3.94 in) or more of precipitation in 20 years, most in 1970 with 4.
  • 5 fixed thresholds have at least one qualifying day at Coamo 2 SW.
40 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Coamo 2 SW Days per year at Coamo 2 SW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 44 in 1999. 02040601955: 191956: 231957: 221958: 311959: 171960: 341961: 321962: 231963: 231964: 71966: 241967: 121968: 191970: 401971: 281972: 201973: 171974: 331975: 221976: 221977: 261979: 311983: 241984: 261986: 231987: 321988: 271989: 161990: 191991: 221992: 361993: 311994: 241995: 421996: 361997: 151998: 301999: 442000: 422001: 281955195919631968197319771986199019941998
Days per year at Coamo 2 SW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 44 in 1999.
Days with 10 mm (0.39 in) or more of precipitation per year at Coamo 2 SW
YearDaysDecade average
19551922.4
19562322.4
19572222.4
19583122.4
19591722.4
19603421.8
19613221.8
19622321.8
19632321.8
1964721.8
19662421.8
19671221.8
19681921.8
19704026.6
19712826.6
19722026.6
19731726.6
19743326.6
19752226.6
19762226.6
19772626.6
19793126.6
19832424.7
19842624.7
19862324.7
19873224.7
19882724.7
19891624.7
19901929.9
19912229.9
19923629.9
19933129.9
19942429.9
19954229.9
19963629.9
19971529.9
19983029.9
19994429.9
20004235
20012835
First to last qualifying date each year at Coamo 2 SW For each year, a bar from the first to the last day at Coamo 2 SW meeting 10 mm (0.39 in). 1955: 10 March 1955 to 28 December 19551956: 2 February 1956 to 16 November 19561957: 14 January 1957 to 29 December 19571958: 10 January 1958 to 17 November 19581959: 18 April 1959 to 6 December 19591960: 17 January 1960 to 31 December 19601961: 20 January 1961 to 29 November 19611962: 30 April 1962 to 3 December 19621963: 4 January 1963 to 31 October 19631964: 7 August 1964 to 13 October 19641966: 13 January 1966 to 22 December 19661967: 30 January 1967 to 14 November 19671968: 26 February 1968 to 16 December 19681970: 14 January 1970 to 25 November 19701971: 21 March 1971 to 27 December 19711972: 17 January 1972 to 10 December 19721973: 7 February 1973 to 21 October 19731974: 9 January 1974 to 31 December 19741975: 28 February 1975 to 13 November 19751976: 20 January 1976 to 4 December 19761977: 18 January 1977 to 25 December 19771979: 15 May 1979 to 24 November 19791983: 15 March 1983 to 6 November 19831984: 27 April 1984 to 28 November 19841986: 26 January 1986 to 19 November 19861987: 6 January 1987 to 11 December 19871988: 2 March 1988 to 18 November 19881989: 22 April 1989 to 9 October 19891990: 20 April 1990 to 15 November 19901991: 13 February 1991 to 2 December 19911992: 7 February 1992 to 30 November 19921993: 29 January 1993 to 20 December 19931994: 1 March 1994 to 25 December 19941995: 26 January 1995 to 27 November 19951996: 9 January 1996 to 16 December 19961997: 4 January 1997 to 10 November 19971998: 12 January 1998 to 29 December 19981999: 16 January 1999 to 26 December 19992000: 26 January 2000 to 16 November 20002001: 21 March 2001 to 23 December 200119551960196619721977198719921997JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Coamo 2 SW meeting 10 mm (0.39 in).
First to last qualifying date each year at Coamo 2 SW
YearFirst dateLast date
19551955-03-101955-12-28
19561956-02-021956-11-16
19571957-01-141957-12-29
19581958-01-101958-11-17
19591959-04-181959-12-06
19601960-01-171960-12-31
19611961-01-201961-11-29
19621962-04-301962-12-03
19631963-01-041963-10-31
19641964-08-071964-10-13
19661966-01-131966-12-22
19671967-01-301967-11-14
19681968-02-261968-12-16
19701970-01-141970-11-25
19711971-03-211971-12-27
19721972-01-171972-12-10
19731973-02-071973-10-21
19741974-01-091974-12-31
19751975-02-281975-11-13
19761976-01-201976-12-04
19771977-01-181977-12-25
19791979-05-151979-11-24
19831983-03-151983-11-06
19841984-04-271984-11-28
19861986-01-261986-11-19
19871987-01-061987-12-11
19881988-03-021988-11-18
19891989-04-221989-10-09
19901990-04-201990-11-15
19911991-02-131991-12-02
19921992-02-071992-11-30
19931993-01-291993-12-20
19941994-03-011994-12-25
19951995-01-261995-11-27
19961996-01-091996-12-16
19971997-01-041997-11-10
19981998-01-121998-12-29
19991999-01-161999-12-26
20002000-01-262000-11-16
20012001-03-212001-12-23

Every Fixed Threshold

Fixed thresholds at Coamo 2 SW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4044199928
25 mm (0.98 in): Days with 25 mm or more rain4022198711
50 mm (1.97 in): Days with 50 mm or more rain34819704
100 mm (3.94 in): Days with 100 mm or more rain20419701
200 mm (7.87 in): Days with 200 mm or more rain6119621

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1955.

Download the Data

  • Data for Coamo 2 SW 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).