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Data as of 2025-12-31
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Built 2026-10-19 (19 October 2026)

Spring Valley Threshold Days by Year (ASN00010257)

3 fixed thresholds counted per year at Spring Valley (ASN00010257): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Spring Valley Thresholds

  • Spring Valley: days with 10 mm (0.39 in) or more of precipitation in 39 years, most in 1963 with 20.
  • Spring Valley: days with 25 mm (0.98 in) or more of precipitation in 29 years, most in 1990 with 5.
  • Spring Valley: days with 50 mm (1.97 in) or more of precipitation in 7 years, most in 1970 with 1.
  • 3 fixed thresholds have at least one qualifying day at Spring Valley.
39 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Spring Valley Days per year at Spring Valley with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 20 in 1963. 051015201959: 101960: 101961: 71962: 61963: 201964: 91965: 111966: 121967: 61968: 131969: 61970: 101971: 61972: 71973: 101974: 121975: 81976: 71977: 81978: 111979: 81980: 31981: 111982: 101983: 151984: 121985: 111986: 111987: 71988: 101989: 121990: 111991: 101992: 191993: 111994: 81995: 131996: 91999: 171959196319671971197519791983198719911995
Days per year at Spring Valley with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 20 in 1963.
Days with 10 mm (0.39 in) or more of precipitation per year at Spring Valley
YearDaysDecade average
19591010
19601010
1961710
1962610
19632010
1964910
19651110
19661210
1967610
19681310
1969610
1970108.7
197168.7
197278.7
1973108.7
1974128.7
197588.7
197678.7
197788.7
1978118.7
197988.7
1980310.2
19811110.2
19821010.2
19831510.2
19841210.2
19851110.2
19861110.2
1987710.2
19881010.2
19891210.2
19901112.3
19911012.3
19921912.3
19931112.3
1994812.3
19951312.3
1996912.3
19991712.3
First to last qualifying date each year at Spring Valley For each year, a bar from the first to the last day at Spring Valley meeting 10 mm (0.39 in). 1959: 10 April 1959 to 22 November 19591960: 1 January 1960 to 17 December 19601961: 26 January 1961 to 17 December 19611962: 13 May 1962 to 23 December 19621963: 27 January 1963 to 25 August 19631964: 29 March 1964 to 9 October 19641965: 19 April 1965 to 22 November 19651966: 5 April 1966 to 23 October 19661967: 23 January 1967 to 4 October 19671968: 27 January 1968 to 10 September 19681969: 19 March 1969 to 27 July 19691970: 16 February 1970 to 4 October 19701971: 13 March 1971 to 10 November 19711972: 7 February 1972 to 17 August 19721973: 10 April 1973 to 15 November 19731974: 4 April 1974 to 14 November 19741975: 1 April 1975 to 10 December 19751976: 28 February 1976 to 9 October 19761977: 28 April 1977 to 31 October 19771978: 2 January 1978 to 19 December 19781979: 16 February 1979 to 13 November 19791980: 21 April 1980 to 26 August 19801981: 17 February 1981 to 8 December 19811982: 3 January 1982 to 21 September 19821983: 17 March 1983 to 31 December 19831984: 15 February 1984 to 20 July 19841985: 1 February 1985 to 21 November 19851986: 21 February 1986 to 15 September 19861987: 9 May 1987 to 23 December 19871988: 24 March 1988 to 12 August 19881989: 12 January 1989 to 18 August 19891990: 28 January 1990 to 7 October 19901991: 17 January 1991 to 25 December 19911992: 16 February 1992 to 20 September 19921993: 19 March 1993 to 12 September 19931994: 25 February 1994 to 20 December 19941995: 28 March 1995 to 24 December 19951996: 20 April 1996 to 6 November 19961999: 23 January 1999 to 30 December 199919591964196919741979198419891994JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Spring Valley meeting 10 mm (0.39 in).
First to last qualifying date each year at Spring Valley
YearFirst dateLast date
19591959-04-101959-11-22
19601960-01-011960-12-17
19611961-01-261961-12-17
19621962-05-131962-12-23
19631963-01-271963-08-25
19641964-03-291964-10-09
19651965-04-191965-11-22
19661966-04-051966-10-23
19671967-01-231967-10-04
19681968-01-271968-09-10
19691969-03-191969-07-27
19701970-02-161970-10-04
19711971-03-131971-11-10
19721972-02-071972-08-17
19731973-04-101973-11-15
19741974-04-041974-11-14
19751975-04-011975-12-10
19761976-02-281976-10-09
19771977-04-281977-10-31
19781978-01-021978-12-19
19791979-02-161979-11-13
19801980-04-211980-08-26
19811981-02-171981-12-08
19821982-01-031982-09-21
19831983-03-171983-12-31
19841984-02-151984-07-20
19851985-02-011985-11-21
19861986-02-211986-09-15
19871987-05-091987-12-23
19881988-03-241988-08-12
19891989-01-121989-08-18
19901990-01-281990-10-07
19911991-01-171991-12-25
19921992-02-161992-09-20
19931993-03-191993-09-12
19941994-02-251994-12-20
19951995-03-281995-12-24
19961996-04-201996-11-06
19991999-01-231999-12-30

Every Fixed Threshold

Fixed thresholds at Spring Valley
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3920196317
25 mm (0.98 in): Days with 25 mm or more rain29519903
50 mm (1.97 in): Days with 50 mm or more rain7119701

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1959.

Download the Data

  • Data for Spring 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 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

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