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Built 2026-10-19 (19 October 2026)

Valparaiso Threshold Days by Year (USC00258790)

6 fixed thresholds counted per year at Valparaiso (USC00258790): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Valparaiso Thresholds

  • Valparaiso: days with 10 mm (0.39 in) or more of precipitation in 30 years, most in 1951 with 34.
  • Valparaiso: days with 25 mm (0.98 in) or more of precipitation in 30 years, most in 1984 with 16.
  • Valparaiso: days with 50 mm (1.97 in) or more of precipitation in 22 years, most in 1977 with 4.
  • Valparaiso: days with 10 cm (3.9 in) or more of snowfall in 22 years, most in 1948 with 7.
  • 6 fixed thresholds have at least one qualifying day at Valparaiso.
30 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Valparaiso Days per year at Valparaiso with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 34 in 1951. 0102030401898: 221899: 251942: 231943: 211946: 261947: 201948: 251951: 341954: 191955: 111956: 111957: 301958: 231959: 241963: 191977: 321979: 221981: 261982: 301983: 261984: 311985: 201986: 251989: 181990: 231991: 221992: 271994: 261995: 161996: 271898194319481955195819771982198519901994
Days per year at Valparaiso with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 34 in 1951.
Days with 10 mm (0.39 in) or more of precipitation per year at Valparaiso
YearDaysDecade average
18982223.5
18992523.5
19422323
19432123
19462623
19472023
19482523
19513421.7
19541921.7
19551121.7
19561121.7
19573021.7
19582321.7
19592421.7
19631919
19773227
19792227
19812625.1
19823025.1
19832625.1
19843125.1
19852025.1
19862525.1
19891825.1
19902323.5
19912223.5
19922723.5
19942623.5
19951623.5
19962723.5
First to last qualifying date each year at Valparaiso For each year, a bar from the first to the last day at Valparaiso meeting 10 mm (0.39 in). 1898: 14 March 1898 to 10 October 18981899: 26 February 1899 to 9 December 18991942: 2 January 1942 to 25 September 19421943: 3 February 1943 to 24 October 19431946: 5 February 1946 to 9 November 19461947: 3 April 1947 to 4 December 19471948: 27 February 1948 to 24 December 19481951: 25 February 1951 to 25 November 19511954: 19 February 1954 to 26 October 19541955: 12 April 1955 to 21 September 19551956: 1 February 1956 to 30 October 19561957: 17 March 1957 to 18 November 19571958: 27 February 1958 to 4 December 19581959: 15 March 1959 to 29 December 19591963: 23 January 1963 to 22 September 19631977: 3 March 1977 to 9 November 19771979: 3 March 1979 to 20 November 19791981: 4 March 1981 to 17 December 19811982: 4 March 1982 to 29 December 19821983: 29 January 1983 to 15 December 19831984: 13 February 1984 to 16 December 19841985: 20 February 1985 to 18 October 19851986: 12 March 1986 to 22 October 19861989: 29 January 1989 to 29 October 19891990: 7 March 1990 to 2 December 19901991: 13 March 1991 to 23 December 19911992: 2 January 1992 to 3 December 19921994: 22 February 1994 to 7 December 19941995: 3 February 1995 to 5 October 19951996: 27 January 1996 to 17 November 199618981946195419581979198419901995JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Valparaiso meeting 10 mm (0.39 in).
First to last qualifying date each year at Valparaiso
YearFirst dateLast date
18981898-03-141898-10-10
18991899-02-261899-12-09
19421942-01-021942-09-25
19431943-02-031943-10-24
19461946-02-051946-11-09
19471947-04-031947-12-04
19481948-02-271948-12-24
19511951-02-251951-11-25
19541954-02-191954-10-26
19551955-04-121955-09-21
19561956-02-011956-10-30
19571957-03-171957-11-18
19581958-02-271958-12-04
19591959-03-151959-12-29
19631963-01-231963-09-22
19771977-03-031977-11-09
19791979-03-031979-11-20
19811981-03-041981-12-17
19821982-03-041982-12-29
19831983-01-291983-12-15
19841984-02-131984-12-16
19851985-02-201985-10-18
19861986-03-121986-10-22
19891989-01-291989-10-29
19901990-03-071990-12-02
19911991-03-131991-12-23
19921992-01-021992-12-03
19941994-02-221994-12-07
19951995-02-031995-10-05
19961996-01-271996-11-17

Every Fixed Threshold

Fixed thresholds at Valparaiso
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3034195127
25 mm (0.98 in): Days with 25 mm or more rain3016198411
50 mm (1.97 in): Days with 50 mm or more rain22419774
100 mm (3.94 in): Days with 100 mm or more rain6119481
10 cm (3.9 in): Days with 10 cm or more snowfall22719482
25 cm (9.8 in): Days with 25 cm or more snowfall2119451

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1898.

Download the Data

  • Data for Valparaiso 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).