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Built 2026-10-19 (19 October 2026)

Attica 6 WNW Threshold Days by Year (USC00140431)

6 fixed thresholds counted per year at Attica 6 WNW (USC00140431): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Attica 6 WNW Thresholds

  • Attica 6 WNW: days with 10 mm (0.39 in) or more of precipitation in 47 years, most in 1987 with 35.
  • Attica 6 WNW: days with 25 mm (0.98 in) or more of precipitation in 47 years, most in 1944 with 12.
  • Attica 6 WNW: days with 50 mm (1.97 in) or more of precipitation in 40 years, most in 1951 with 6.
  • Attica 6 WNW: days with 10 cm (3.9 in) or more of snowfall in 17 years, most in 1971 with 4.
  • 6 fixed thresholds have at least one qualifying day at Attica 6 WNW.
47 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Attica 6 WNW Days per year at Attica 6 WNW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 35 in 1987. 0102030401940: 241941: 261942: 221943: 161944: 301945: 261946: 191947: 201949: 291950: 171951: 321952: 141953: 121954: 91955: 171956: 101957: 331958: 221959: 261960: 281961: 271962: 201963: 191964: 231966: 121968: 201969: 251970: 171971: 261974: 231975: 211976: 191977: 231978: 221979: 201980: 221981: 251982: 211984: 301985: 241986: 291987: 351988: 171989: 251990: 211991: 191992: 341940194519511956196119681975198019861991
Days per year at Attica 6 WNW with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 35 in 1987.
Days with 10 mm (0.39 in) or more of precipitation per year at Attica 6 WNW
YearDaysDecade average
19402423.6
19412623.6
19422223.6
19431623.6
19443023.6
19452623.6
19461923.6
19472023.6
19492923.6
19501719.2
19513219.2
19521419.2
19531219.2
1954919.2
19551719.2
19561019.2
19573319.2
19582219.2
19592619.2
19602821.8
19612721.8
19622021.8
19631921.8
19642321.8
19661221.8
19682021.8
19692521.8
19701721.4
19712621.4
19742321.4
19752121.4
19761921.4
19772321.4
19782221.4
19792021.4
19802225.3
19812525.3
19822125.3
19843025.3
19852425.3
19862925.3
19873525.3
19881725.3
19892525.3
19902124.7
19911924.7
19923424.7
First to last qualifying date each year at Attica 6 WNW For each year, a bar from the first to the last day at Attica 6 WNW meeting 10 mm (0.39 in). 1940: 16 February 1940 to 26 December 19401941: 14 January 1941 to 31 October 19411942: 16 February 1942 to 5 December 19421943: 30 January 1943 to 28 December 19431944: 27 January 1944 to 5 December 19441945: 18 January 1945 to 30 September 19451946: 5 January 1946 to 12 December 19461947: 12 March 1947 to 5 December 19471949: 10 January 1949 to 21 December 19491950: 7 May 1950 to 29 August 19501951: 2 January 1951 to 28 October 19511952: 4 March 1952 to 19 December 19521953: 1 March 1953 to 3 December 19531954: 20 February 1954 to 26 October 19541955: 4 February 1955 to 4 October 19551956: 21 March 1956 to 5 November 19561957: 21 March 1957 to 18 November 19571958: 7 March 1958 to 17 November 19581959: 1 February 1959 to 30 October 19591960: 14 January 1960 to 11 December 19601961: 18 February 1961 to 9 December 19611962: 18 January 1962 to 27 November 19621963: 4 March 1963 to 20 November 19631964: 31 January 1964 to 10 December 19641966: 9 February 1966 to 26 December 19661968: 31 March 1968 to 3 November 19681969: 14 February 1969 to 6 December 19691970: 16 March 1970 to 9 October 19701971: 3 January 1971 to 23 November 19711974: 8 March 1974 to 11 December 19741975: 2 January 1975 to 14 December 19751976: 16 April 1976 to 30 October 19761977: 28 March 1977 to 9 November 19771978: 7 February 1978 to 26 November 19781979: 28 February 1979 to 29 December 19791980: 19 January 1980 to 8 December 19801981: 4 March 1981 to 30 November 19811982: 29 January 1982 to 27 December 19821984: 9 February 1984 to 16 December 19841985: 1 January 1985 to 11 December 19851986: 12 March 1986 to 7 December 19861987: 9 January 1987 to 20 December 19871988: 8 January 1988 to 8 October 19881989: 21 January 1989 to 7 December 19891990: 19 January 1990 to 17 December 19901991: 17 March 1991 to 31 December 19911992: 1 January 1992 to 14 December 199219401946195319591966197519811988JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Attica 6 WNW meeting 10 mm (0.39 in).
First to last qualifying date each year at Attica 6 WNW
YearFirst dateLast date
19401940-02-161940-12-26
19411941-01-141941-10-31
19421942-02-161942-12-05
19431943-01-301943-12-28
19441944-01-271944-12-05
19451945-01-181945-09-30
19461946-01-051946-12-12
19471947-03-121947-12-05
19491949-01-101949-12-21
19501950-05-071950-08-29
19511951-01-021951-10-28
19521952-03-041952-12-19
19531953-03-011953-12-03
19541954-02-201954-10-26
19551955-02-041955-10-04
19561956-03-211956-11-05
19571957-03-211957-11-18
19581958-03-071958-11-17
19591959-02-011959-10-30
19601960-01-141960-12-11
19611961-02-181961-12-09
19621962-01-181962-11-27
19631963-03-041963-11-20
19641964-01-311964-12-10
19661966-02-091966-12-26
19681968-03-311968-11-03
19691969-02-141969-12-06
19701970-03-161970-10-09
19711971-01-031971-11-23
19741974-03-081974-12-11
19751975-01-021975-12-14
19761976-04-161976-10-30
19771977-03-281977-11-09
19781978-02-071978-11-26
19791979-02-281979-12-29
19801980-01-191980-12-08
19811981-03-041981-11-30
19821982-01-291982-12-27
19841984-02-091984-12-16
19851985-01-011985-12-11
19861986-03-121986-12-07
19871987-01-091987-12-20
19881988-01-081988-10-08
19891989-01-211989-12-07
19901990-01-191990-12-17
19911991-03-171991-12-31
19921992-01-011992-12-14

Every Fixed Threshold

Fixed thresholds at Attica 6 WNW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4735198734
25 mm (0.98 in): Days with 25 mm or more rain4712194412
50 mm (1.97 in): Days with 50 mm or more rain40619513
100 mm (3.94 in): Days with 100 mm or more rain9119471
10 cm (3.9 in): Days with 10 cm or more snowfall17419711
25 cm (9.8 in): Days with 25 cm or more snowfall2119701

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1940.

Download the Data

  • Data for Attica 6 WNW 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).