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Built 2026-10-19 (19 October 2026)

Four Corners Threshold Days by Year (ASN00007026)

4 fixed thresholds counted per year at Four Corners (ASN00007026): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Four Corners Thresholds

  • Four Corners: days with 10 mm (0.39 in) or more of precipitation in 46 years, most in 1947 with 13.
  • Four Corners: days with 25 mm (0.98 in) or more of precipitation in 30 years, most in 1947 with 7.
  • Four Corners: days with 50 mm (1.97 in) or more of precipitation in 16 years, most in 1923 with 2.
  • Four Corners: days with 100 mm (3.94 in) or more of precipitation in 1 years, most in 1926 with 1.
  • 4 fixed thresholds have at least one qualifying day at Four Corners.
46 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Four Corners Days per year at Four Corners with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 13 in 1947. 0510151920: 71921: 41922: 61923: 51924: 21925: 71926: 31927: 51929: 81930: 71933: 41936: 21937: 21938: 71939: 41941: 21942: 111943: 21944: 11945: 61946: 31947: 131948: 81949: 21950: 11952: 41953: 31954: 41955: 51956: 31957: 41958: 81959: 21960: 71961: 51962: 41963: 121964: 31965: 71966: 71967: 51968: 101969: 11970: 41972: 51973: 111920192519331941194619521957196219671973
Days per year at Four Corners with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 13 in 1947.
Days with 10 mm (0.39 in) or more of precipitation per year at Four Corners
YearDaysDecade average
192075.2
192145.2
192265.2
192355.2
192425.2
192575.2
192635.2
192755.2
192985.2
193074.3
193344.3
193624.3
193724.3
193874.3
193944.3
194125.3
1942115.3
194325.3
194415.3
194565.3
194635.3
1947135.3
194885.3
194925.3
195013.8
195243.8
195333.8
195443.8
195553.8
195633.8
195743.8
195883.8
195923.8
196076.1
196156.1
196246.1
1963126.1
196436.1
196576.1
196676.1
196756.1
1968106.1
196916.1
197046.7
197256.7
1973116.7
First to last qualifying date each year at Four Corners For each year, a bar from the first to the last day at Four Corners meeting 10 mm (0.39 in). 1920: 2 March 1920 to 28 September 19201921: 13 February 1921 to 4 August 19211922: 1 March 1922 to 25 August 19221923: 1 March 1923 to 27 July 19231924: 11 February 1924 to 8 May 19241925: 16 February 1925 to 26 December 19251926: 9 March 1926 to 17 March 19261927: 1 March 1927 to 26 December 19271929: 14 February 1929 to 31 May 19291930: 10 March 1930 to 11 December 19301933: 4 March 1933 to 25 August 19331936: 30 January 1936 to 3 March 19361937: 6 January 1937 to 18 May 19371938: 16 January 1938 to 14 December 19381939: 13 January 1939 to 1 July 19391941: 5 April 1941 to 30 May 19411942: 28 January 1942 to 11 August 19421943: 8 March 1943 to 7 May 19431944: 2 July 1944 to 2 July 19441945: 4 February 1945 to 1 August 19451946: 30 January 1946 to 10 July 19461947: 16 January 1947 to 25 October 19471948: 6 February 1948 to 19 July 19481949: 4 June 1949 to 5 November 19491950: 26 May 1950 to 26 May 19501952: 22 January 1952 to 10 July 19521953: 9 May 1953 to 1 December 19531954: 2 May 1954 to 26 November 19541955: 1 January 1955 to 21 September 19551956: 29 February 1956 to 29 August 19561957: 8 February 1957 to 9 June 19571958: 23 January 1958 to 23 November 19581959: 1 June 1959 to 25 July 19591960: 31 January 1960 to 21 July 19601961: 25 January 1961 to 10 June 19611962: 16 February 1962 to 11 July 19621963: 10 January 1963 to 14 July 19631964: 29 March 1964 to 17 July 19641965: 13 March 1965 to 27 November 19651966: 8 February 1966 to 23 October 19661967: 21 January 1967 to 21 May 19671968: 25 January 1968 to 10 September 19681969: 18 May 1969 to 18 May 19691970: 29 January 1970 to 30 May 19701972: 29 February 1972 to 2 July 19721973: 23 April 1973 to 4 December 197319201926193719441950195719631969JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Four Corners meeting 10 mm (0.39 in).
First to last qualifying date each year at Four Corners
YearFirst dateLast date
19201920-03-021920-09-28
19211921-02-131921-08-04
19221922-03-011922-08-25
19231923-03-011923-07-27
19241924-02-111924-05-08
19251925-02-161925-12-26
19261926-03-091926-03-17
19271927-03-011927-12-26
19291929-02-141929-05-31
19301930-03-101930-12-11
19331933-03-041933-08-25
19361936-01-301936-03-03
19371937-01-061937-05-18
19381938-01-161938-12-14
19391939-01-131939-07-01
19411941-04-051941-05-30
19421942-01-281942-08-11
19431943-03-081943-05-07
19441944-07-021944-07-02
19451945-02-041945-08-01
19461946-01-301946-07-10
19471947-01-161947-10-25
19481948-02-061948-07-19
19491949-06-041949-11-05
19501950-05-261950-05-26
19521952-01-221952-07-10
19531953-05-091953-12-01
19541954-05-021954-11-26
19551955-01-011955-09-21
19561956-02-291956-08-29
19571957-02-081957-06-09
19581958-01-231958-11-23
19591959-06-011959-07-25
19601960-01-311960-07-21
19611961-01-251961-06-10
19621962-02-161962-07-11
19631963-01-101963-07-14
19641964-03-291964-07-17
19651965-03-131965-11-27
19661966-02-081966-10-23
19671967-01-211967-05-21
19681968-01-251968-09-10
19691969-05-181969-05-18
19701970-01-291970-05-30
19721972-02-291972-07-02
19731973-04-231973-12-04

Every Fixed Threshold

Fixed thresholds at Four Corners
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain4613194711
25 mm (0.98 in): Days with 25 mm or more rain30719472
50 mm (1.97 in): Days with 50 mm or more rain16219231
100 mm (3.94 in): Days with 100 mm or more rain1119261

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1920.

Download the Data

  • Data for Four Corners 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).