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Built 2026-10-19 (19 October 2026)

Ashurst Hayden Dam Threshold Days by Year (USC00020498)

3 fixed thresholds counted per year at Ashurst Hayden Dam (USC00020498): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ashurst Hayden Dam Thresholds

  • Ashurst Hayden Dam: days with 10 mm (0.39 in) or more of precipitation in 60 years, most in 1978 with 21.
  • Ashurst Hayden Dam: days with 25 mm (0.98 in) or more of precipitation in 48 years, most in 1983 with 8.
  • Ashurst Hayden Dam: days with 50 mm (1.97 in) or more of precipitation in 5 years, most in 1961 with 1.
  • 3 fixed thresholds have at least one qualifying day at Ashurst Hayden Dam.
60 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Ashurst Hayden Dam Days per year at Ashurst Hayden Dam with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 21 in 1978. 01020301956: 41957: 61958: 101959: 81960: 51961: 41962: 21963: 121964: 111965: 151966: 81967: 91968: 81969: 91970: 61971: 101972: 101973: 111974: 71975: 81976: 51977: 31978: 211979: 41980: 121981: 91982: 81983: 171984: 121985: 61986: 151987: 91988: 51989: 41990: 151991: 111992: 161993: 141994: 101995: 81997: 71998: 112002: 72003: 82004: 122009: 22010: 92011: 112012: 82013: 82014: 92015: 112016: 22019: 142020: 42021: 92022: 62024: 82025: 72026: 11956196219681974198019861992200220122020
Days per year at Ashurst Hayden Dam with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 21 in 1978.
Days with 10 mm (0.39 in) or more of precipitation per year at Ashurst Hayden Dam
YearDaysDecade average
195647
195767
1958107
195987
196058.3
196148.3
196228.3
1963128.3
1964118.3
1965158.3
196688.3
196798.3
196888.3
196998.3
197068.5
1971108.5
1972108.5
1973118.5
197478.5
197588.5
197658.5
197738.5
1978218.5
197948.5
1980129.7
198199.7
198289.7
1983179.7
1984129.7
198569.7
1986159.7
198799.7
198859.7
198949.7
19901511.5
19911111.5
19921611.5
19931411.5
19941011.5
1995811.5
1997711.5
19981111.5
200277.3
200387.3
2004127.3
200927.3
201099
2011119
201289
201389
201499
2015119
201629
2019149
202045.8
202195.8
202265.8
202485.8
202575.8
202615.8
First to last qualifying date each year at Ashurst Hayden Dam For each year, a bar from the first to the last day at Ashurst Hayden Dam meeting 10 mm (0.39 in). 1956: 29 January 1956 to 18 August 19561957: 20 March 1957 to 31 October 19571958: 5 February 1958 to 17 November 19581959: 9 February 1959 to 26 December 19591960: 12 January 1960 to 22 August 19601961: 30 March 1961 to 16 December 19611962: 22 January 1962 to 20 March 19621963: 3 January 1963 to 21 November 19631964: 3 March 1964 to 19 December 19641965: 20 January 1965 to 31 December 19651966: 8 February 1966 to 8 December 19661967: 24 January 1967 to 20 December 19671968: 14 February 1968 to 27 December 19681969: 15 January 1969 to 29 December 19691970: 1 March 1970 to 18 December 19701971: 6 August 1971 to 18 October 19711972: 23 June 1972 to 28 December 19721973: 17 February 1973 to 26 November 19731974: 8 January 1974 to 5 December 19741975: 11 March 1975 to 21 December 19751976: 9 February 1976 to 24 July 19761977: 1 January 1977 to 22 September 19771978: 11 January 1978 to 31 December 19781979: 17 January 1979 to 29 March 19791980: 19 January 1980 to 7 September 19801981: 12 January 1981 to 29 November 19811982: 22 January 1982 to 10 December 19821983: 30 January 1983 to 2 December 19831984: 6 January 1984 to 28 December 19841985: 19 September 1985 to 12 December 19851986: 1 February 1986 to 8 December 19861987: 5 January 1987 to 19 December 19871988: 18 January 1988 to 26 November 19881989: 4 January 1989 to 5 October 19891990: 3 January 1990 to 29 December 19901991: 6 January 1991 to 31 December 19911992: 7 January 1992 to 29 December 19921993: 3 January 1993 to 15 November 19931994: 8 February 1994 to 26 December 19941995: 4 January 1995 to 2 November 19951997: 28 February 1997 to 22 December 19971998: 5 February 1998 to 5 September 19982002: 10 July 2002 to 10 September 20022003: 14 February 2003 to 13 November 20032004: 22 January 2004 to 31 December 20042009: 8 February 2009 to 8 December 20092010: 22 January 2010 to 28 August 20102011: 20 February 2011 to 19 December 20112012: 15 January 2012 to 16 December 20122013: 26 January 2013 to 10 September 20132014: 1 March 2014 to 13 December 20142015: 1 January 2015 to 16 November 20152016: 6 January 2016 to 4 November 20162019: 6 January 2019 to 27 December 20192020: 23 February 2020 to 9 November 20202021: 25 January 2021 to 10 December 20212022: 24 February 2022 to 9 October 20222024: 23 January 2024 to 23 August 20242025: 8 March 2025 to 23 November 20252026: 14 July 2026 to 14 July 202619561964197219801988199720122022JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Ashurst Hayden Dam meeting 10 mm (0.39 in).
First to last qualifying date each year at Ashurst Hayden Dam
YearFirst dateLast date
19561956-01-291956-08-18
19571957-03-201957-10-31
19581958-02-051958-11-17
19591959-02-091959-12-26
19601960-01-121960-08-22
19611961-03-301961-12-16
19621962-01-221962-03-20
19631963-01-031963-11-21
19641964-03-031964-12-19
19651965-01-201965-12-31
19661966-02-081966-12-08
19671967-01-241967-12-20
19681968-02-141968-12-27
19691969-01-151969-12-29
19701970-03-011970-12-18
19711971-08-061971-10-18
19721972-06-231972-12-28
19731973-02-171973-11-26
19741974-01-081974-12-05
19751975-03-111975-12-21
19761976-02-091976-07-24
19771977-01-011977-09-22
19781978-01-111978-12-31
19791979-01-171979-03-29
19801980-01-191980-09-07
19811981-01-121981-11-29
19821982-01-221982-12-10
19831983-01-301983-12-02
19841984-01-061984-12-28
19851985-09-191985-12-12
19861986-02-011986-12-08
19871987-01-051987-12-19
19881988-01-181988-11-26
19891989-01-041989-10-05
19901990-01-031990-12-29
19911991-01-061991-12-31
19921992-01-071992-12-29
19931993-01-031993-11-15
19941994-02-081994-12-26
19951995-01-041995-11-02
19971997-02-281997-12-22
19981998-02-051998-09-05
20022002-07-102002-09-10
20032003-02-142003-11-13
20042004-01-222004-12-31
20092009-02-082009-12-08
20102010-01-222010-08-28
20112011-02-202011-12-19
20122012-01-152012-12-16
20132013-01-262013-09-10
20142014-03-012014-12-13
20152015-01-012015-11-16
20162016-01-062016-11-04
20192019-01-062019-12-27
20202020-02-232020-11-09
20212021-01-252021-12-10
20222022-02-242022-10-09
20242024-01-232024-08-23
20252025-03-082025-11-23
20262026-07-142026-07-14

Every Fixed Threshold

Fixed thresholds at Ashurst Hayden Dam
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain602119781
25 mm (0.98 in): Days with 25 mm or more rain48819831
50 mm (1.97 in): Days with 50 mm or more rain5119611

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1956.

Download the Data

  • Data for Ashurst Hayden Dam 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 (2026-10-17).