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Built 2026-10-19 (19 October 2026)

Corvallis Threshold Days by Year (USC00351857)

4 fixed thresholds counted per year at Corvallis (USC00351857): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Corvallis Thresholds

  • Corvallis: days with 10 mm (0.39 in) or more of precipitation in 27 years, most in 1950 with 49.
  • Corvallis: days with 25 mm (0.98 in) or more of precipitation in 27 years, most in 1948 with 10.
  • Corvallis: days with 50 mm (1.97 in) or more of precipitation in 18 years, most in 1948 with 2.
  • Corvallis: days with 10 cm (3.9 in) or more of snowfall in 7 years, most in 1950 with 2.
  • 4 fixed thresholds have at least one qualifying day at Corvallis.
27 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Corvallis Days per year at Corvallis with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 49 in 1950. 02040601946: 321947: 301948: 371949: 301950: 491951: 471952: 271953: 411954: 471955: 301956: 321957: 341958: 321959: 241960: 351961: 321962: 311963: 291964: 371965: 261966: 281967: 231968: 491969: 351970: 441971: 471972: 21194619491952195519581961196419671970
Days per year at Corvallis with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 49 in 1950.
Days with 10 mm (0.39 in) or more of precipitation per year at Corvallis
YearDaysDecade average
19463232.3
19473032.3
19483732.3
19493032.3
19504936.3
19514736.3
19522736.3
19534136.3
19544736.3
19553036.3
19563236.3
19573436.3
19583236.3
19592436.3
19603532.5
19613232.5
19623132.5
19632932.5
19643732.5
19652632.5
19662832.5
19672332.5
19684932.5
19693532.5
19704437.3
19714737.3
19722137.3
First to last qualifying date each year at Corvallis For each year, a bar from the first to the last day at Corvallis meeting 10 mm (0.39 in). 1946: 4 January 1946 to 15 December 19461947: 26 January 1947 to 28 December 19471948: 1 January 1948 to 31 December 19481949: 1 January 1949 to 31 December 19491950: 6 January 1950 to 28 December 19501951: 2 January 1951 to 31 December 19511952: 4 January 1952 to 30 December 19521953: 2 January 1953 to 20 December 19531954: 3 January 1954 to 31 December 19541955: 16 January 1955 to 27 December 19551956: 1 January 1956 to 16 December 19561957: 8 January 1957 to 26 December 19571958: 11 January 1958 to 27 December 19581959: 5 January 1959 to 24 December 19591960: 8 January 1960 to 19 December 19601961: 5 January 1961 to 21 December 19611962: 6 January 1962 to 15 December 19621963: 2 January 1963 to 21 December 19631964: 2 January 1964 to 29 December 19641965: 6 January 1965 to 31 December 19651966: 1 January 1966 to 14 December 19661967: 5 January 1967 to 18 December 19671968: 9 January 1968 to 23 December 19681969: 1 January 1969 to 26 December 19691970: 9 January 1970 to 31 December 19701971: 11 January 1971 to 24 December 19711972: 12 January 1972 to 26 November 19721946195019541958196219661970JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Corvallis meeting 10 mm (0.39 in).
First to last qualifying date each year at Corvallis
YearFirst dateLast date
19461946-01-041946-12-15
19471947-01-261947-12-28
19481948-01-011948-12-31
19491949-01-011949-12-31
19501950-01-061950-12-28
19511951-01-021951-12-31
19521952-01-041952-12-30
19531953-01-021953-12-20
19541954-01-031954-12-31
19551955-01-161955-12-27
19561956-01-011956-12-16
19571957-01-081957-12-26
19581958-01-111958-12-27
19591959-01-051959-12-24
19601960-01-081960-12-19
19611961-01-051961-12-21
19621962-01-061962-12-15
19631963-01-021963-12-21
19641964-01-021964-12-29
19651965-01-061965-12-31
19661966-01-011966-12-14
19671967-01-051967-12-18
19681968-01-091968-12-23
19691969-01-011969-12-26
19701970-01-091970-12-31
19711971-01-111971-12-24
19721972-01-121972-11-26

Every Fixed Threshold

Fixed thresholds at Corvallis
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain2749195021
25 mm (0.98 in): Days with 25 mm or more rain271019484
50 mm (1.97 in): Days with 50 mm or more rain18219481
10 cm (3.9 in): Days with 10 cm or more snowfall7219502

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1946.

Download the Data

  • Data for Corvallis 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).