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Built 2026-10-19 (19 October 2026)

Avalon Catalina AP Threshold Days by Year (USW00023191)

13 fixed thresholds counted per year at Avalon Catalina AP (USW00023191): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Avalon Catalina AP Thresholds

  • Avalon Catalina AP: days with a maximum temperature at or above 30 C (86 F) in 36 years, most in 2020 with 50.
  • Avalon Catalina AP: days with a maximum temperature at or above 90 F (32.2 C) in 36 years, most in 2020 with 31.
  • Avalon Catalina AP: nights with a minimum temperature at or above 20 C (68 F) in 36 years, most in 2020 with 54.
  • Avalon Catalina AP: days with 10 mm (0.39 in) or more of precipitation in 36 years, most in 1952 with 19.
  • 13 fixed thresholds have at least one qualifying day at Avalon Catalina AP.
36 years with a qualifying day
Days at or above 30 C (86 F) per year at Avalon Catalina AP Days per year at Avalon Catalina AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 50 in 2020. 02040601948: 181949: 271950: 251951: 211952: 321963: 251964: 461965: 371966: 341967: 392001: 202002: 212003: 472004: 192005: 172006: 382007: 232008: 372009: 342010: 262011: 212012: 362013: 242014: 262015: 292016: 282017: 442018: 232019: 382020: 502021: 302022: 292023: 362024: 392025: 172026: 37194819521966200320072011201520192023
Days per year at Avalon Catalina AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 50 in 2020.
Days at or above 30 C (86 F) per year at Avalon Catalina AP
YearDaysDecade average
19481822.5
19492722.5
19502526
19512126
19523226
19632536.2
19644636.2
19653736.2
19663436.2
19673936.2
20012028.4
20022128.4
20034728.4
20041928.4
20051728.4
20063828.4
20072328.4
20083728.4
20093428.4
20102629.5
20112129.5
20123629.5
20132429.5
20142629.5
20152929.5
20162829.5
20174429.5
20182329.5
20193829.5
20205034
20213034
20222934
20233634
20243934
20251734
20263734
First to last qualifying date each year at Avalon Catalina AP For each year, a bar from the first to the last day at Avalon Catalina AP meeting 30 C (86 F). 1948: 10 July 1948 to 8 October 19481949: 21 April 1949 to 4 November 19491950: 28 June 1950 to 2 November 19501951: 25 May 1951 to 7 October 19511952: 18 May 1952 to 5 October 19521963: 3 February 1963 to 29 September 19631964: 14 April 1964 to 21 October 19641965: 28 April 1965 to 29 October 19651966: 31 March 1966 to 2 November 19661967: 15 May 1967 to 1 November 19672001: 23 May 2001 to 2 October 20012002: 12 May 2002 to 7 October 20022003: 21 May 2003 to 28 October 20032004: 26 April 2004 to 8 October 20042005: 13 July 2005 to 14 October 20052006: 4 June 2006 to 19 November 20062007: 11 March 2007 to 24 October 20072008: 13 April 2008 to 14 November 20082009: 19 April 2009 to 17 October 20092010: 14 July 2010 to 4 November 20102011: 2 July 2011 to 23 October 20112012: 20 April 2012 to 5 November 20122013: 11 May 2013 to 13 November 20132014: 1 May 2014 to 7 October 20142015: 14 March 2015 to 12 October 20152016: 2 June 2016 to 10 November 20162017: 21 May 2017 to 24 November 20172018: 9 April 2018 to 9 September 20182019: 9 June 2019 to 18 November 20192020: 24 April 2020 to 5 November 20202021: 29 April 2021 to 14 November 20212022: 7 April 2022 to 19 October 20222023: 1 July 2023 to 20 October 20232024: 22 June 2024 to 8 October 20242025: 9 May 2025 to 9 November 20252026: 16 March 2026 to 8 October 202619481963200120062011201620212026JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Avalon Catalina AP meeting 30 C (86 F).
First to last qualifying date each year at Avalon Catalina AP
YearFirst dateLast date
19481948-07-101948-10-08
19491949-04-211949-11-04
19501950-06-281950-11-02
19511951-05-251951-10-07
19521952-05-181952-10-05
19631963-02-031963-09-29
19641964-04-141964-10-21
19651965-04-281965-10-29
19661966-03-311966-11-02
19671967-05-151967-11-01
20012001-05-232001-10-02
20022002-05-122002-10-07
20032003-05-212003-10-28
20042004-04-262004-10-08
20052005-07-132005-10-14
20062006-06-042006-11-19
20072007-03-112007-10-24
20082008-04-132008-11-14
20092009-04-192009-10-17
20102010-07-142010-11-04
20112011-07-022011-10-23
20122012-04-202012-11-05
20132013-05-112013-11-13
20142014-05-012014-10-07
20152015-03-142015-10-12
20162016-06-022016-11-10
20172017-05-212017-11-24
20182018-04-092018-09-09
20192019-06-092019-11-18
20202020-04-242020-11-05
20212021-04-292021-11-14
20222022-04-072022-10-19
20232023-07-012023-10-20
20242024-06-222024-10-08
20252025-05-092025-11-09
20262026-03-162026-10-08

Every Fixed Threshold

Fixed thresholds at Avalon Catalina AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days3650202037
35 C (95 F): Days291120176
40 C (104 F): Days5220181
90 F (32.2 C): Days3631202019
100 F (37.8 C): Days12319632
110 F (43.3 C): Days1120201
0 C (32 F): Frost days (min1419494
20 C (68 F): Tropical nights (min3654202034
25 C (77 F): Days with min3112201210
10 mm (0.39 in): Days with 10 mm or more rain361919522
25 mm (0.98 in): Days with 25 mm or more rain29920102
50 mm (1.97 in): Days with 50 mm or more rain15220241
100 mm (3.94 in): Days with 100 mm or more rain2120041

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1948.

Download the Data

  • Data for Avalon Catalina AP 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 (2026-10-17).