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Built 2026-10-19 (19 October 2026)

Elmo 1 SW Threshold Days by Year (USC00142478)

6 fixed thresholds counted per year at Elmo 1 SW (USC00142478): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Elmo 1 SW Thresholds

  • Elmo 1 SW: days with 10 mm (0.39 in) or more of precipitation in 57 years, most in 1951 with 42.
  • Elmo 1 SW: days with 25 mm (0.98 in) or more of precipitation in 57 years, most in 1999 with 17.
  • Elmo 1 SW: days with 50 mm (1.97 in) or more of precipitation in 48 years, most in 1961 with 7.
  • Elmo 1 SW: days with 10 cm (3.9 in) or more of snowfall in 23 years, most in 1960 with 6.
  • 6 fixed thresholds have at least one qualifying day at Elmo 1 SW.
57 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Elmo 1 SW Days per year at Elmo 1 SW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 42 in 1951. 02040601949: 301950: 231951: 421952: 181953: 201954: 171955: 161956: 141957: 341958: 311959: 311960: 321961: 341962: 301963: 181964: 241966: 141967: 341968: 191969: 241970: 211971: 301972: 231973: 381974: 261975: 271976: 191977: 271978: 241979: 281980: 181981: 311982: 301983: 221984: 291985: 291986: 271987: 251988: 201989: 211990: 271991: 171992: 321993: 401994: 221995: 311996: 241997: 341998: 351999: 342000: 282001: 262002: 232003: 222004: 272005: 292006: 191949195519611968197419801986199219982004
Days per year at Elmo 1 SW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 42 in 1951.
Days with 10 mm (0.39 in) or more of precipitation per year at Elmo 1 SW
YearDaysDecade average
19493030
19502324.6
19514224.6
19521824.6
19532024.6
19541724.6
19551624.6
19561424.6
19573424.6
19583124.6
19593124.6
19603225.4
19613425.4
19623025.4
19631825.4
19642425.4
19661425.4
19673425.4
19681925.4
19692425.4
19702126.3
19713026.3
19722326.3
19733826.3
19742626.3
19752726.3
19761926.3
19772726.3
19782426.3
19792826.3
19801825.2
19813125.2
19823025.2
19832225.2
19842925.2
19852925.2
19862725.2
19872525.2
19882025.2
19892125.2
19902729.6
19911729.6
19923229.6
19934029.6
19942229.6
19953129.6
19962429.6
19973429.6
19983529.6
19993429.6
20002824.9
20012624.9
20022324.9
20032224.9
20042724.9
20052924.9
20061924.9
First to last qualifying date each year at Elmo 1 SW For each year, a bar from the first to the last day at Elmo 1 SW meeting 10 mm (0.39 in). 1949: 4 January 1949 to 21 December 19491950: 29 April 1950 to 7 October 19501951: 2 January 1951 to 27 October 19511952: 10 March 1952 to 22 December 19521953: 2 March 1953 to 3 December 19531954: 20 February 1954 to 26 October 19541955: 2 February 1955 to 4 October 19551956: 9 April 1956 to 23 December 19561957: 21 March 1957 to 25 December 19571958: 20 January 1958 to 18 November 19581959: 21 January 1959 to 27 December 19591960: 14 January 1960 to 11 December 19601961: 18 February 1961 to 9 December 19611962: 26 January 1962 to 27 November 19621963: 4 March 1963 to 20 November 19631964: 20 March 1964 to 10 December 19641966: 9 February 1966 to 28 December 19661967: 1 April 1967 to 18 December 19671968: 3 April 1968 to 19 December 19681969: 15 February 1969 to 7 December 19691970: 23 January 1970 to 9 October 19701971: 3 January 1971 to 29 November 19711972: 24 March 1972 to 12 December 19721973: 22 January 1973 to 4 December 19731974: 8 March 1974 to 30 December 19741975: 31 January 1975 to 30 November 19751976: 4 March 1976 to 30 October 19761977: 28 March 1977 to 9 November 19771978: 15 March 1978 to 26 November 19781979: 19 January 1979 to 28 December 19791980: 19 January 1980 to 7 December 19801981: 25 March 1981 to 30 November 19811982: 21 January 1982 to 10 December 19821983: 26 March 1983 to 3 December 19831984: 16 February 1984 to 31 December 19841985: 10 January 1985 to 29 November 19851986: 3 February 1986 to 7 December 19861987: 1 January 1987 to 19 December 19871988: 2 January 1988 to 20 September 19881989: 28 January 1989 to 27 October 19891990: 20 January 1990 to 8 October 19901991: 25 January 1991 to 20 December 19911992: 23 January 1992 to 14 December 19921993: 20 January 1993 to 15 October 19931994: 27 January 1994 to 7 December 19941995: 1 January 1995 to 19 December 19951996: 15 March 1996 to 17 November 19961997: 21 February 1997 to 24 December 19971998: 1 February 1998 to 30 November 19981999: 22 January 1999 to 5 December 19992000: 3 January 2000 to 29 October 20002001: 30 January 2001 to 16 October 20012002: 30 January 2002 to 15 November 20022003: 14 February 2003 to 10 December 20032004: 25 January 2004 to 29 November 20042005: 3 January 2005 to 15 November 20052006: 4 March 2006 to 27 October 200619491957196619741982199019982006JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Elmo 1 SW meeting 10 mm (0.39 in).
First to last qualifying date each year at Elmo 1 SW
YearFirst dateLast date
19491949-01-041949-12-21
19501950-04-291950-10-07
19511951-01-021951-10-27
19521952-03-101952-12-22
19531953-03-021953-12-03
19541954-02-201954-10-26
19551955-02-021955-10-04
19561956-04-091956-12-23
19571957-03-211957-12-25
19581958-01-201958-11-18
19591959-01-211959-12-27
19601960-01-141960-12-11
19611961-02-181961-12-09
19621962-01-261962-11-27
19631963-03-041963-11-20
19641964-03-201964-12-10
19661966-02-091966-12-28
19671967-04-011967-12-18
19681968-04-031968-12-19
19691969-02-151969-12-07
19701970-01-231970-10-09
19711971-01-031971-11-29
19721972-03-241972-12-12
19731973-01-221973-12-04
19741974-03-081974-12-30
19751975-01-311975-11-30
19761976-03-041976-10-30
19771977-03-281977-11-09
19781978-03-151978-11-26
19791979-01-191979-12-28
19801980-01-191980-12-07
19811981-03-251981-11-30
19821982-01-211982-12-10
19831983-03-261983-12-03
19841984-02-161984-12-31
19851985-01-101985-11-29
19861986-02-031986-12-07
19871987-01-011987-12-19
19881988-01-021988-09-20
19891989-01-281989-10-27
19901990-01-201990-10-08
19911991-01-251991-12-20
19921992-01-231992-12-14
19931993-01-201993-10-15
19941994-01-271994-12-07
19951995-01-011995-12-19
19961996-03-151996-11-17
19971997-02-211997-12-24
19981998-02-011998-11-30
19991999-01-221999-12-05
20002000-01-032000-10-29
20012001-01-302001-10-16
20022002-01-302002-11-15
20032003-02-142003-12-10
20042004-01-252004-11-29
20052005-01-032005-11-15
20062006-03-042006-10-27

Every Fixed Threshold

Fixed thresholds at Elmo 1 SW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain5742195119
25 mm (0.98 in): Days with 25 mm or more rain571719994
50 mm (1.97 in): Days with 50 mm or more rain48719613
100 mm (3.94 in): Days with 100 mm or more rain11219571
10 cm (3.9 in): Days with 10 cm or more snowfall23619602
25 cm (9.8 in): Days with 25 cm or more snowfall1119521

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.

Download the Data

  • Data for Elmo 1 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).