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Built 2026-10-18 (18 October 2026)

Santa Rosa 3 WNW Threshold Days by Year

14 fixed thresholds counted per year at Santa Rosa 3 WNW (USC00418059): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Santa Rosa 3 WNW Thresholds

  • Santa Rosa 3 WNW: days with a maximum temperature at or above 30 C (86 F) in 27 years, most in 2000 with 236.
  • Santa Rosa 3 WNW: days with a maximum temperature at or above 35 C (95 F) in 27 years, most in 2023 with 131.
  • Santa Rosa 3 WNW: days with a maximum temperature at or above 90 F (32.2 C) in 27 years, most in 2002 with 191.
  • Santa Rosa 3 WNW: days with 10 mm (0.39 in) or more of precipitation in 27 years, most in 1991 with 23.
  • 14 fixed thresholds have at least one qualifying day at Santa Rosa 3 WNW.
27 years with a qualifying day
Days at or above 30 C (86 F) per year at Santa Rosa 3 WNW Days per year at Santa Rosa 3 WNW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 236 in 2000. 01002003001988: 2071989: 2281990: 2041991: 2051992: 1811993: 1891994: 2071995: 2051996: 2161997: 1861998: 1941999: 2262000: 2362001: 2252002: 2232003: 2102004: 2152005: 2332007: 2252008: 2142009: 2212010: 1992016: 2342019: 2022021: 2172022: 2282023: 227198819911994199720002003200720102021
Days per year at Santa Rosa 3 WNW with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 236 in 2000.
Days at or above 30 C (86 F) per year at Santa Rosa 3 WNW
YearDaysDecade average
1988207217.5
1989228217.5
1990204201.3
1991205201.3
1992181201.3
1993189201.3
1994207201.3
1995205201.3
1996216201.3
1997186201.3
1998194201.3
1999226201.3
2000236222.4
2001225222.4
2002223222.4
2003210222.4
2004215222.4
2005233222.4
2007225222.4
2008214222.4
2009221222.4
2010199211.7
2016234211.7
2019202211.7
2021217224
2022228224
2023227224
First to last qualifying date each year at Santa Rosa 3 WNW For each year, a bar from the first to the last day at Santa Rosa 3 WNW meeting 30 C (86 F). 1988: 29 February 1988 to 27 November 19881989: 3 January 1989 to 28 November 19891990: 12 January 1990 to 18 December 19901991: 14 February 1991 to 1 December 19911992: 25 February 1992 to 12 November 19921993: 16 February 1993 to 12 December 19931994: 9 February 1994 to 10 December 19941995: 4 February 1995 to 6 December 19951996: 24 January 1996 to 13 December 19961997: 5 January 1997 to 29 November 19971998: 22 January 1998 to 8 December 19981999: 18 January 1999 to 12 December 19992000: 11 January 2000 to 2 December 20002001: 16 February 2001 to 23 December 20012002: 19 January 2002 to 11 November 20022003: 22 January 2003 to 27 November 20032004: 5 January 2004 to 10 December 20042005: 12 January 2005 to 29 December 20052007: 21 February 2007 to 22 December 20072008: 2 January 2008 to 29 December 20082009: 9 January 2009 to 16 November 20092010: 2 March 2010 to 13 December 20102016: 1 February 2016 to 29 December 20162019: 8 February 2019 to 17 December 20192021: 26 January 2021 to 30 December 20212022: 1 January 2022 to 14 December 20222023: 3 January 2023 to 10 December 20231988199219962000200420092021JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Santa Rosa 3 WNW meeting 30 C (86 F).
First to last qualifying date each year at Santa Rosa 3 WNW
YearFirst dateLast date
19881988-02-291988-11-27
19891989-01-031989-11-28
19901990-01-121990-12-18
19911991-02-141991-12-01
19921992-02-251992-11-12
19931993-02-161993-12-12
19941994-02-091994-12-10
19951995-02-041995-12-06
19961996-01-241996-12-13
19971997-01-051997-11-29
19981998-01-221998-12-08
19991999-01-181999-12-12
20002000-01-112000-12-02
20012001-02-162001-12-23
20022002-01-192002-11-11
20032003-01-222003-11-27
20042004-01-052004-12-10
20052005-01-122005-12-29
20072007-02-212007-12-22
20082008-01-022008-12-29
20092009-01-092009-11-16
20102010-03-022010-12-13
20162016-02-012016-12-29
20192019-02-082019-12-17
20212021-01-262021-12-30
20222022-01-012022-12-14
20232023-01-032023-12-10

Every Fixed Threshold

Fixed thresholds at Santa Rosa 3 WNW
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days272362000227
35 C (95 F): Days271312023131
40 C (104 F): Days910202310
90 F (32.2 C): Days271912002191
100 F (37.8 C): Days2686202386
0 C (32 F): Ice days (max1319893
0 C (32 F): Frost days (min131719896
20 C (68 F): Tropical nights (min262092023209
25 C (77 F): Days with min2681202381
10 mm (0.39 in): Days with 10 mm or more rain2723199115
25 mm (0.98 in): Days with 25 mm or more rain271620213
50 mm (1.97 in): Days with 50 mm or more rain22520213
100 mm (3.94 in): Days with 100 mm or more rain8219931
200 mm (7.87 in): Days with 200 mm or more rain1120191

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1988.

Download the Data

  • Data for Santa Rosa 3 WNW 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).