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Built 2026-10-19 (19 October 2026)

Mountain View Birdseye Threshold Days by Year (CA003054722)

7 fixed thresholds counted per year at Mountain View Birdseye (CA003054722): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mountain View Birdseye Thresholds

  • Mountain View Birdseye: days with 10 cm (3.9 in) or more of snowfall in 51 years, most in 1921 with 30.
  • Mountain View Birdseye: days with 25 cm (9.8 in) or more of snowfall in 42 years, most in 1921 with 7.
  • Mountain View Birdseye: days with 10 mm (0.39 in) or more of precipitation in 38 years, most in 1978 with 43.
  • Mountain View Birdseye: days with 25 mm (0.98 in) or more of precipitation in 38 years, most in 1921 with 10.
  • 7 fixed thresholds have at least one qualifying day at Mountain View Birdseye.
38 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Mountain View Birdseye Days per year at Mountain View Birdseye with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 43 in 1978. 02040601921: 411922: 211923: 311924: 291926: 171928: 191929: 311930: 211932: 141933: 291934: 201936: 201940: 211941: 241943: 181944: 251945: 271946: 281952: 141953: 281956: 161959: 271964: 221965: 321966: 261967: 351968: 311969: 221970: 301971: 281972: 351973: 181974: 221975: 351976: 161978: 431979: 301980: 361921192619321940194519561966197019741979
Days per year at Mountain View Birdseye with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 43 in 1978.
Days with 10 mm (0.39 in) or more of precipitation per year at Mountain View Birdseye
YearDaysDecade average
19214127
19222127
19233127
19242927
19261727
19281927
19293127
19302120.8
19321420.8
19332920.8
19342020.8
19362020.8
19402123.8
19412423.8
19431823.8
19442523.8
19452723.8
19462823.8
19521421.3
19532821.3
19561621.3
19592721.3
19642228
19653228
19662628
19673528
19683128
19692228
19703028.6
19712828.6
19723528.6
19731828.6
19742228.6
19753528.6
19761628.6
19784328.6
19793028.6
19803636
First to last qualifying date each year at Mountain View Birdseye For each year, a bar from the first to the last day at Mountain View Birdseye meeting 10 mm (0.39 in). 1921: 15 January 1921 to 31 December 19211922: 19 February 1922 to 10 December 19221923: 11 January 1923 to 28 December 19231924: 17 January 1924 to 29 December 19241926: 18 January 1926 to 21 December 19261928: 8 March 1928 to 28 December 19281929: 3 January 1929 to 16 December 19291930: 5 January 1930 to 13 November 19301932: 11 January 1932 to 10 November 19321933: 15 January 1933 to 24 December 19331934: 6 March 1934 to 25 December 19341936: 24 January 1936 to 24 December 19361940: 10 February 1940 to 27 December 19401941: 24 January 1941 to 25 December 19411943: 20 January 1943 to 18 September 19431944: 2 January 1944 to 19 December 19441945: 7 January 1945 to 7 December 19451946: 25 January 1946 to 22 December 19461952: 23 January 1952 to 23 November 19521953: 6 January 1953 to 20 December 19531956: 7 January 1956 to 3 December 19561959: 24 January 1959 to 31 December 19591964: 4 March 1964 to 23 December 19641965: 5 January 1965 to 28 December 19651966: 3 January 1966 to 16 November 19661967: 4 January 1967 to 27 December 19671968: 9 January 1968 to 26 December 19681969: 5 January 1969 to 12 November 19691970: 14 January 1970 to 30 November 19701971: 9 January 1971 to 24 December 19711972: 1 January 1972 to 29 December 19721973: 4 February 1973 to 5 November 19731974: 4 January 1974 to 21 December 19741975: 11 January 1975 to 30 December 19751976: 17 January 1976 to 27 November 19761978: 2 January 1978 to 22 December 19781979: 12 January 1979 to 11 December 19791980: 4 January 1980 to 22 December 198019211928193419441956196719721978JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Mountain View Birdseye meeting 10 mm (0.39 in).
First to last qualifying date each year at Mountain View Birdseye
YearFirst dateLast date
19211921-01-151921-12-31
19221922-02-191922-12-10
19231923-01-111923-12-28
19241924-01-171924-12-29
19261926-01-181926-12-21
19281928-03-081928-12-28
19291929-01-031929-12-16
19301930-01-051930-11-13
19321932-01-111932-11-10
19331933-01-151933-12-24
19341934-03-061934-12-25
19361936-01-241936-12-24
19401940-02-101940-12-27
19411941-01-241941-12-25
19431943-01-201943-09-18
19441944-01-021944-12-19
19451945-01-071945-12-07
19461946-01-251946-12-22
19521952-01-231952-11-23
19531953-01-061953-12-20
19561956-01-071956-12-03
19591959-01-241959-12-31
19641964-03-041964-12-23
19651965-01-051965-12-28
19661966-01-031966-11-16
19671967-01-041967-12-27
19681968-01-091968-12-26
19691969-01-051969-11-12
19701970-01-141970-11-30
19711971-01-091971-12-24
19721972-01-011972-12-29
19731973-02-041973-11-05
19741974-01-041974-12-21
19751975-01-111975-12-30
19761976-01-171976-11-27
19781978-01-021978-12-22
19791979-01-121979-12-11
19801980-01-041980-12-22

Every Fixed Threshold

Fixed thresholds at Mountain View Birdseye
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3843197836
25 mm (0.98 in): Days with 25 mm or more rain381019217
50 mm (1.97 in): Days with 50 mm or more rain18419641
100 mm (3.94 in): Days with 100 mm or more rain1119641
10 cm (3.9 in): Days with 10 cm or more snowfall5130192114
25 cm (9.8 in): Days with 25 cm or more snowfall42719212
50 cm (19.7 in): Days with 50 cm or more snowfall6219722

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1921.

Download the Data

  • Data for Mountain View Birdseye 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).