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Data as of 2025-12-31
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Built 2026-10-18 (18 October 2026)

Circle Valley Threshold Days by Year

3 fixed thresholds counted per year at Circle Valley (ASN00012265): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Circle Valley Thresholds

  • Circle Valley: days with 10 mm (0.39 in) or more of precipitation in 51 years, most in 1963 with 19.
  • Circle Valley: days with 25 mm (0.98 in) or more of precipitation in 31 years, most in 1992 with 4.
  • Circle Valley: days with 50 mm (1.97 in) or more of precipitation in 9 years, most in 1992 with 2.
  • 3 fixed thresholds have at least one qualifying day at Circle Valley.
51 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Circle Valley Days per year at Circle Valley with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 19 in 1963. 051015201955: 111957: 21958: 91959: 131960: 61961: 51962: 71963: 191964: 81965: 61966: 101967: 71968: 121969: 41970: 61971: 81972: 61973: 71974: 111975: 141976: 61977: 61978: 71979: 41980: 71981: 31982: 71983: 91984: 121985: 91986: 131987: 41988: 81989: 71990: 61991: 61992: 121993: 61994: 61995: 101996: 81997: 61998: 31999: 92000: 122001: 62002: 42003: 132004: 72005: 72006: 6195519621968197419801986199219982004
Days per year at Circle Valley with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 19 in 1963.
Days with 10 mm (0.39 in) or more of precipitation per year at Circle Valley
YearDaysDecade average
1955118.8
195728.8
195898.8
1959138.8
196068.4
196158.4
196278.4
1963198.4
196488.4
196568.4
1966108.4
196778.4
1968128.4
196948.4
197067.5
197187.5
197267.5
197377.5
1974117.5
1975147.5
197667.5
197767.5
197877.5
197947.5
198077.9
198137.9
198277.9
198397.9
1984127.9
198597.9
1986137.9
198747.9
198887.9
198977.9
199067.2
199167.2
1992127.2
199367.2
199467.2
1995107.2
199687.2
199767.2
199837.2
199997.2
2000127.9
200167.9
200247.9
2003137.9
200477.9
200577.9
200667.9
First to last qualifying date each year at Circle Valley For each year, a bar from the first to the last day at Circle Valley meeting 10 mm (0.39 in). 1955: 5 February 1955 to 12 December 19551957: 20 February 1957 to 7 June 19571958: 14 February 1958 to 22 December 19581959: 8 February 1959 to 3 December 19591960: 8 February 1960 to 6 April 19601961: 27 January 1961 to 16 December 19611962: 20 March 1962 to 22 December 19621963: 5 January 1963 to 21 December 19631964: 30 January 1964 to 25 September 19641965: 14 February 1965 to 4 November 19651966: 2 January 1966 to 23 December 19661967: 17 May 1967 to 22 December 19671968: 1 January 1968 to 13 December 19681969: 28 January 1969 to 24 October 19691970: 16 February 1970 to 4 October 19701971: 28 March 1971 to 24 November 19711972: 6 January 1972 to 8 September 19721973: 23 January 1973 to 5 November 19731974: 1 March 1974 to 20 November 19741975: 2 April 1975 to 11 December 19751976: 28 February 1976 to 13 November 19761977: 4 August 1977 to 23 December 19771978: 15 February 1978 to 23 December 19781979: 10 April 1979 to 8 November 19791980: 25 February 1980 to 30 December 19801981: 13 January 1981 to 2 October 19811982: 5 March 1982 to 29 November 19821983: 28 February 1983 to 5 December 19831984: 1 January 1984 to 4 December 19841985: 9 March 1985 to 30 November 19851986: 22 February 1986 to 30 November 19861987: 22 January 1987 to 27 August 19871988: 31 January 1988 to 24 July 19881989: 6 March 1989 to 11 November 19891990: 29 January 1990 to 30 June 19901991: 28 April 1991 to 26 December 19911992: 10 February 1992 to 17 November 19921993: 18 March 1993 to 10 November 19931994: 24 May 1994 to 15 October 19941995: 9 January 1995 to 26 December 19951996: 7 February 1996 to 7 November 19961997: 8 February 1997 to 13 November 19971998: 10 April 1998 to 4 September 19981999: 5 January 1999 to 8 July 19992000: 15 January 2000 to 17 August 20002001: 21 January 2001 to 1 December 20012002: 17 April 2002 to 2 November 20022003: 13 February 2003 to 25 November 20032004: 6 January 2004 to 7 September 20042005: 3 January 2005 to 7 October 20052006: 3 January 2006 to 17 May 200619551963197019771984199119982005JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Circle Valley meeting 10 mm (0.39 in).
First to last qualifying date each year at Circle Valley
YearFirst dateLast date
19551955-02-051955-12-12
19571957-02-201957-06-07
19581958-02-141958-12-22
19591959-02-081959-12-03
19601960-02-081960-04-06
19611961-01-271961-12-16
19621962-03-201962-12-22
19631963-01-051963-12-21
19641964-01-301964-09-25
19651965-02-141965-11-04
19661966-01-021966-12-23
19671967-05-171967-12-22
19681968-01-011968-12-13
19691969-01-281969-10-24
19701970-02-161970-10-04
19711971-03-281971-11-24
19721972-01-061972-09-08
19731973-01-231973-11-05
19741974-03-011974-11-20
19751975-04-021975-12-11
19761976-02-281976-11-13
19771977-08-041977-12-23
19781978-02-151978-12-23
19791979-04-101979-11-08
19801980-02-251980-12-30
19811981-01-131981-10-02
19821982-03-051982-11-29
19831983-02-281983-12-05
19841984-01-011984-12-04
19851985-03-091985-11-30
19861986-02-221986-11-30
19871987-01-221987-08-27
19881988-01-311988-07-24
19891989-03-061989-11-11
19901990-01-291990-06-30
19911991-04-281991-12-26
19921992-02-101992-11-17
19931993-03-181993-11-10
19941994-05-241994-10-15
19951995-01-091995-12-26
19961996-02-071996-11-07
19971997-02-081997-11-13
19981998-04-101998-09-04
19991999-01-051999-07-08
20002000-01-152000-08-17
20012001-01-212001-12-01
20022002-04-172002-11-02
20032003-02-132003-11-25
20042004-01-062004-09-07
20052005-01-032005-10-07
20062006-01-032006-05-17

Every Fixed Threshold

Fixed thresholds at Circle Valley
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain511919636
25 mm (0.98 in): Days with 25 mm or more rain31419922
50 mm (1.97 in): Days with 50 mm or more rain9219921

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 Circle Valley 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2025-12-31).