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Built 2026-10-19 (19 October 2026)

Emerald 1 W Threshold Days by Year (USC00252706)

6 fixed thresholds counted per year at Emerald 1 W (USC00252706): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Emerald 1 W Thresholds

  • Emerald 1 W: days with 10 mm (0.39 in) or more of precipitation in 43 years, most in 1986 with 38.
  • Emerald 1 W: days with 25 mm (0.98 in) or more of precipitation in 43 years, most in 1982 with 13.
  • Emerald 1 W: days with 50 mm (1.97 in) or more of precipitation in 28 years, most in 1973 with 4.
  • Emerald 1 W: days with 10 cm (3.9 in) or more of snowfall in 28 years, most in 1960 with 5.
  • 6 fixed thresholds have at least one qualifying day at Emerald 1 W.
43 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Emerald 1 W Days per year at Emerald 1 W with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 38 in 1986. 0102030401952: 241953: 111954: 211955: 141956: 191957: 321958: 221959: 271960: 221961: 271962: 261963: 151964: 241965: 251966: 141967: 191968: 241969: 231970: 251971: 241972: 311973: 361974: 191975: 231976: 161977: 211978: 281979: 211980: 201981: 241982: 331983: 271984: 311985: 201986: 381987: 291988: 161989: 141991: 171992: 221993: 291994: 181996: 18195219571962196719721977198219871993
Days per year at Emerald 1 W with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 38 in 1986.
Days with 10 mm (0.39 in) or more of precipitation per year at Emerald 1 W
YearDaysDecade average
19522421.3
19531121.3
19542121.3
19551421.3
19561921.3
19573221.3
19582221.3
19592721.3
19602221.9
19612721.9
19622621.9
19631521.9
19642421.9
19652521.9
19661421.9
19671921.9
19682421.9
19692321.9
19702524.4
19712424.4
19723124.4
19733624.4
19741924.4
19752324.4
19761624.4
19772124.4
19782824.4
19792124.4
19802025.2
19812425.2
19823325.2
19832725.2
19843125.2
19852025.2
19863825.2
19872925.2
19881625.2
19891425.2
19911720.8
19922220.8
19932920.8
19941820.8
19961820.8
First to last qualifying date each year at Emerald 1 W For each year, a bar from the first to the last day at Emerald 1 W meeting 10 mm (0.39 in). 1952: 13 February 1952 to 22 December 19521953: 30 April 1953 to 3 December 19531954: 20 February 1954 to 5 December 19541955: 6 January 1955 to 21 September 19551956: 3 April 1956 to 30 October 19561957: 18 March 1957 to 18 November 19571958: 12 January 1958 to 18 November 19581959: 10 February 1959 to 3 October 19591960: 15 January 1960 to 14 October 19601961: 6 March 1961 to 16 November 19611962: 15 February 1962 to 16 November 19621963: 23 January 1963 to 23 September 19631964: 20 March 1964 to 11 December 19641965: 10 February 1965 to 11 November 19651966: 9 February 1966 to 28 December 19661967: 26 March 1967 to 7 October 19671968: 3 April 1968 to 19 December 19681969: 24 March 1969 to 28 December 19691970: 1 March 1970 to 9 November 19701971: 3 January 1971 to 30 December 19711972: 19 April 1972 to 30 December 19721973: 13 February 1973 to 24 December 19731974: 11 April 1974 to 15 December 19741975: 11 January 1975 to 14 December 19751976: 16 February 1976 to 25 September 19761977: 11 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 30 November 19811982: 4 March 1982 to 28 December 19821983: 29 January 1983 to 28 November 19831984: 18 February 1984 to 21 December 19841985: 27 March 1985 to 12 October 19851986: 12 March 1986 to 7 December 19861987: 17 March 1987 to 9 December 19871988: 19 January 1988 to 16 November 19881989: 28 January 1989 to 9 September 19891991: 2 March 1991 to 23 December 19911992: 1 January 1992 to 2 November 19921993: 20 January 1993 to 14 December 19931994: 27 January 1994 to 7 December 19941996: 26 January 1996 to 30 November 199619521958196419701976198219881996JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Emerald 1 W meeting 10 mm (0.39 in).
First to last qualifying date each year at Emerald 1 W
YearFirst dateLast date
19521952-02-131952-12-22
19531953-04-301953-12-03
19541954-02-201954-12-05
19551955-01-061955-09-21
19561956-04-031956-10-30
19571957-03-181957-11-18
19581958-01-121958-11-18
19591959-02-101959-10-03
19601960-01-151960-10-14
19611961-03-061961-11-16
19621962-02-151962-11-16
19631963-01-231963-09-23
19641964-03-201964-12-11
19651965-02-101965-11-11
19661966-02-091966-12-28
19671967-03-261967-10-07
19681968-04-031968-12-19
19691969-03-241969-12-28
19701970-03-011970-11-09
19711971-01-031971-12-30
19721972-04-191972-12-30
19731973-02-131973-12-24
19741974-04-111974-12-15
19751975-01-111975-12-14
19761976-02-161976-09-25
19771977-03-111977-11-09
19781978-02-131978-11-26
19791979-01-191979-11-21
19801980-01-161980-12-08
19811981-03-041981-11-30
19821982-03-041982-12-28
19831983-01-291983-11-28
19841984-02-181984-12-21
19851985-03-271985-10-12
19861986-03-121986-12-07
19871987-03-171987-12-09
19881988-01-191988-11-16
19891989-01-281989-09-09
19911991-03-021991-12-23
19921992-01-011992-11-02
19931993-01-201993-12-14
19941994-01-271994-12-07
19961996-01-261996-11-30

Every Fixed Threshold

Fixed thresholds at Emerald 1 W
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4338198618
25 mm (0.98 in): Days with 25 mm or more rain431319829
50 mm (1.97 in): Days with 50 mm or more rain28419731
100 mm (3.94 in): Days with 100 mm or more rain3119821
10 cm (3.9 in): Days with 10 cm or more snowfall28519602
25 cm (9.8 in): Days with 25 cm or more snowfall2119711

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1952.

Download the Data

  • Data for Emerald 1 W 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).