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Built 2026-10-18 (18 October 2026)

Sebastopol (Erin Vale) Threshold Days by Year

4 fixed thresholds counted per year at Sebastopol (Erin Vale) (ASN00073114): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Sebastopol (Erin Vale) Thresholds

  • Sebastopol (Erin Vale): days with 10 mm (0.39 in) or more of precipitation in 39 years, most in 1969 with 32.
  • Sebastopol (Erin Vale): days with 25 mm (0.98 in) or more of precipitation in 37 years, most in 2010 with 12.
  • Sebastopol (Erin Vale): days with 50 mm (1.97 in) or more of precipitation in 15 years, most in 1969 with 2.
  • Sebastopol (Erin Vale): days with 100 mm (3.94 in) or more of precipitation in 2 years, most in 1974 with 1.
  • 4 fixed thresholds have at least one qualifying day at Sebastopol (Erin Vale).
39 years with a qualifying day
Days with 10 mm (0.39 in) or more of precipitation per year at Sebastopol (Erin Vale) Days per year at Sebastopol (Erin Vale) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 32 in 1969. 0102030401969: 321970: 181971: 161972: 81973: 231974: 261975: 161976: 221977: 141978: 271979: 131980: 141981: 181982: 31983: 221984: 181985: 171986: 211987: 151988: 191989: 151990: 251991: 111992: 251993: 231994: 121995: 191996: 181997: 141998: 161999: 272000: 172001: 132005: 142006: 42007: 152008: 152009: 112010: 291969197319771981198519891993199720012008
Days per year at Sebastopol (Erin Vale) with 10 mm (0.39 in) or more of precipitation, with the decade average as a line. The most was 32 in 1969.
Days with 10 mm (0.39 in) or more of precipitation per year at Sebastopol (Erin Vale)
YearDaysDecade average
19693232
19701818.3
19711618.3
1972818.3
19732318.3
19742618.3
19751618.3
19762218.3
19771418.3
19782718.3
19791318.3
19801416.2
19811816.2
1982316.2
19832216.2
19841816.2
19851716.2
19862116.2
19871516.2
19881916.2
19891516.2
19902519
19911119
19922519
19932319
19941219
19951919
19961819
19971419
19981619
19992719
20001712.7
20011312.7
20051412.7
2006412.7
20071512.7
20081512.7
20091112.7
20102929
First to last qualifying date each year at Sebastopol (Erin Vale) For each year, a bar from the first to the last day at Sebastopol (Erin Vale) meeting 10 mm (0.39 in). 1969: 15 January 1969 to 12 December 19691970: 2 January 1970 to 11 November 19701971: 15 January 1971 to 27 December 19711972: 13 January 1972 to 17 October 19721973: 13 January 1973 to 31 December 19731974: 5 January 1974 to 27 November 19741975: 10 January 1975 to 30 December 19751976: 13 January 1976 to 24 December 19761977: 2 January 1977 to 3 September 19771978: 5 January 1978 to 25 December 19781979: 3 March 1979 to 24 November 19791980: 4 January 1980 to 3 December 19801981: 6 February 1981 to 25 December 19811982: 24 March 1982 to 27 September 19821983: 23 February 1983 to 11 December 19831984: 1 January 1984 to 3 November 19841985: 1 February 1985 to 11 December 19851986: 16 January 1986 to 8 December 19861987: 21 February 1987 to 2 December 19871988: 2 January 1988 to 24 December 19881989: 23 January 1989 to 13 December 19891990: 9 January 1990 to 20 October 19901991: 6 January 1991 to 14 December 19911992: 9 January 1992 to 25 December 19921993: 24 January 1993 to 27 December 19931994: 31 January 1994 to 9 December 19941995: 17 April 1995 to 1 December 19951996: 29 February 1996 to 26 December 19961997: 2 March 1997 to 1 November 19971998: 8 February 1998 to 16 December 19981999: 9 January 1999 to 29 December 19992000: 27 January 2000 to 1 December 20002001: 27 January 2001 to 6 November 20012005: 3 February 2005 to 3 December 20052006: 17 January 2006 to 7 September 20062007: 19 January 2007 to 22 December 20072008: 19 January 2008 to 12 December 20082009: 11 February 2009 to 28 December 20092010: 5 February 2010 to 20 December 201019691974197919841989199419992007JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Sebastopol (Erin Vale) meeting 10 mm (0.39 in).
First to last qualifying date each year at Sebastopol (Erin Vale)
YearFirst dateLast date
19691969-01-151969-12-12
19701970-01-021970-11-11
19711971-01-151971-12-27
19721972-01-131972-10-17
19731973-01-131973-12-31
19741974-01-051974-11-27
19751975-01-101975-12-30
19761976-01-131976-12-24
19771977-01-021977-09-03
19781978-01-051978-12-25
19791979-03-031979-11-24
19801980-01-041980-12-03
19811981-02-061981-12-25
19821982-03-241982-09-27
19831983-02-231983-12-11
19841984-01-011984-11-03
19851985-02-011985-12-11
19861986-01-161986-12-08
19871987-02-211987-12-02
19881988-01-021988-12-24
19891989-01-231989-12-13
19901990-01-091990-10-20
19911991-01-061991-12-14
19921992-01-091992-12-25
19931993-01-241993-12-27
19941994-01-311994-12-09
19951995-04-171995-12-01
19961996-02-291996-12-26
19971997-03-021997-11-01
19981998-02-081998-12-16
19991999-01-091999-12-29
20002000-01-272000-12-01
20012001-01-272001-11-06
20052005-02-032005-12-03
20062006-01-172006-09-07
20072007-01-192007-12-22
20082008-01-192008-12-12
20092009-02-112009-12-28
20102010-02-052010-12-20

Every Fixed Threshold

Fixed thresholds at Sebastopol (Erin Vale)
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
10 mm (0.39 in): Days with 10 mm or more rain3932196929
25 mm (0.98 in): Days with 25 mm or more rain3712201012
50 mm (1.97 in): Days with 50 mm or more rain15219692
100 mm (3.94 in): Days with 100 mm or more rain2119741

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1969.

Download the Data

  • Data for Sebastopol (Erin Vale) 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).