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Data as of 2026-10-12
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Built 2026-10-18 (18 October 2026)

Mountain View Threshold Days by Year

4 fixed thresholds counted per year at Mountain View (ASN00035207): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mountain View Thresholds

  • Mountain View: days with 10 mm (0.39 in) or more of precipitation in 53 years, most in 2010 with 39.
  • Mountain View: days with 25 mm (0.98 in) or more of precipitation in 53 years, most in 2010 with 27.
  • Mountain View: days with 50 mm (1.97 in) or more of precipitation in 42 years, most in 2010 with 12.
  • Mountain View: days with 100 mm (3.94 in) or more of precipitation in 14 years, most in 2008 with 2.
  • 4 fixed thresholds have at least one qualifying day at Mountain View.
53 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Mountain View Days per year at Mountain View with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 39 in 2010. 0102030401974: 241975: 251976: 301977: 171978: 241979: 141980: 171981: 221982: 131983: 281984: 251985: 161986: 121987: 161988: 131989: 281990: 261991: 141992: 241993: 181994: 141995: 171996: 201997: 181998: 261999: 252000: 182001: 252002: 162003: 132004: 182005: 232006: 112007: 272008: 272009: 132010: 392011: 232012: 252013: 122014: 222015: 112016: 202017: 202018: 172019: 112020: 182021: 272022: 312023: 152024: 172025: 242026: 9197419801986199219982004201020162022
Days per year at Mountain View with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 39 in 2010.
Days with 10 mm (0.39 in) or more of precipitation per year at Mountain View
YearDaysDecade average
19742422.3
19752522.3
19763022.3
19771722.3
19782422.3
19791422.3
19801719
19812219
19821319
19832819
19842519
19851619
19861219
19871619
19881319
19892819
19902620.2
19911420.2
19922420.2
19931820.2
19941420.2
19951720.2
19962020.2
19971820.2
19982620.2
19992520.2
20001819.1
20012519.1
20021619.1
20031319.1
20041819.1
20052319.1
20061119.1
20072719.1
20082719.1
20091319.1
20103920
20112320
20122520
20131220
20142220
20151120
20162020
20172020
20181720
20191120
20201820.1
20212720.1
20223120.1
20231520.1
20241720.1
20252420.1
2026920.1
First to last qualifying date each year at Mountain View For each year, a bar from the first to the last day at Mountain View meeting 10 mm (0.39 in). 1974: 2 January 1974 to 29 December 19741975: 3 January 1975 to 23 December 19751976: 12 January 1976 to 27 December 19761977: 6 January 1977 to 18 November 19771978: 6 January 1978 to 27 December 19781979: 7 February 1979 to 26 December 19791980: 6 January 1980 to 30 December 19801981: 2 January 1981 to 25 December 19811982: 6 January 1982 to 4 December 19821983: 2 January 1983 to 17 December 19831984: 3 January 1984 to 23 December 19841985: 24 January 1985 to 22 December 19851986: 1 January 1986 to 18 December 19861987: 2 January 1987 to 30 December 19871988: 8 February 1988 to 27 December 19881989: 2 January 1989 to 27 December 19891990: 16 January 1990 to 30 December 19901991: 4 January 1991 to 30 November 19911992: 1 January 1992 to 28 December 19921993: 12 January 1993 to 10 December 19931994: 9 January 1994 to 11 December 19941995: 8 January 1995 to 29 December 19951996: 3 January 1996 to 16 December 19961997: 30 January 1997 to 20 December 19971998: 31 January 1998 to 30 December 19981999: 1 January 1999 to 19 December 19992000: 9 January 2000 to 29 December 20002001: 9 January 2001 to 17 December 20012002: 5 January 2002 to 10 December 20022003: 9 February 2003 to 6 December 20032004: 8 January 2004 to 23 December 20042005: 7 January 2005 to 17 December 20052006: 10 January 2006 to 28 December 20062007: 3 January 2007 to 28 December 20072008: 11 January 2008 to 31 December 20082009: 23 January 2009 to 30 December 20092010: 2 January 2010 to 28 December 20102011: 6 January 2011 to 16 December 20112012: 15 January 2012 to 22 December 20122013: 25 January 2013 to 18 December 20132014: 6 January 2014 to 19 December 20142015: 15 January 2015 to 29 December 20152016: 4 January 2016 to 3 October 20162017: 3 January 2017 to 3 December 20172018: 5 January 2018 to 23 November 20182019: 15 March 2019 to 5 November 20192020: 16 January 2020 to 30 December 20202021: 7 January 2021 to 26 December 20212022: 15 January 2022 to 18 December 20222023: 11 January 2023 to 31 December 20232024: 11 January 2024 to 19 December 20242025: 2 January 2025 to 26 December 20252026: 11 January 2026 to 9 March 202619741981198819952002200920162023JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Mountain View meeting 10 mm (0.39 in).
First to last qualifying date each year at Mountain View
YearFirst dateLast date
19741974-01-021974-12-29
19751975-01-031975-12-23
19761976-01-121976-12-27
19771977-01-061977-11-18
19781978-01-061978-12-27
19791979-02-071979-12-26
19801980-01-061980-12-30
19811981-01-021981-12-25
19821982-01-061982-12-04
19831983-01-021983-12-17
19841984-01-031984-12-23
19851985-01-241985-12-22
19861986-01-011986-12-18
19871987-01-021987-12-30
19881988-02-081988-12-27
19891989-01-021989-12-27
19901990-01-161990-12-30
19911991-01-041991-11-30
19921992-01-011992-12-28
19931993-01-121993-12-10
19941994-01-091994-12-11
19951995-01-081995-12-29
19961996-01-031996-12-16
19971997-01-301997-12-20
19981998-01-311998-12-30
19991999-01-011999-12-19
20002000-01-092000-12-29
20012001-01-092001-12-17
20022002-01-052002-12-10
20032003-02-092003-12-06
20042004-01-082004-12-23
20052005-01-072005-12-17
20062006-01-102006-12-28
20072007-01-032007-12-28
20082008-01-112008-12-31
20092009-01-232009-12-30
20102010-01-022010-12-28
20112011-01-062011-12-16
20122012-01-152012-12-22
20132013-01-252013-12-18
20142014-01-062014-12-19
20152015-01-152015-12-29
20162016-01-042016-10-03
20172017-01-032017-12-03
20182018-01-052018-11-23
20192019-03-152019-11-05
20202020-01-162020-12-30
20212021-01-072021-12-26
20222022-01-152022-12-18
20232023-01-112023-12-31
20242024-01-112024-12-19
20252025-01-022025-12-26
20262026-01-112026-03-09

Every Fixed Threshold

Fixed thresholds at Mountain View
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain533920109
25 mm (0.98 in): Days with 25 mm or more rain532720106
50 mm (1.97 in): Days with 50 mm or more rain421220103
100 mm (3.94 in): Days with 100 mm or more rain14220081

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1974.

Download the Data

  • Data for Mountain View 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 2026-10-16 (16 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-12).