Daily records
Page built 2026-10-16
Data as of 2026-10-14
Search
Built 2026-10-16 (16 October 2026)

Mayo Threshold Days by Year

15 fixed thresholds counted per year at Mayo (USC00085539): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mayo Thresholds

  • Mayo: days with 10 mm (0.39 in) or more of precipitation in 74 years, most in 1964 with 59.
  • Mayo: days with 25 mm (0.98 in) or more of precipitation in 74 years, most in 1964 with 29.
  • Mayo: days with 50 mm (1.97 in) or more of precipitation in 74 years, most in 2023 with 10.
  • Mayo: days with a maximum temperature at or above 30 C (86 F) in 73 years, most in 2012 with 180.
  • 15 fixed thresholds have at least one qualifying day at Mayo.
73 years with a qualifying day
Days at or above 30 C (86 F) per year at Mayo Days per year at Mayo with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 180 in 2012. 0501001502001950: 1331951: 1441952: 1381953: 1331954: 1571955: 1651956: 1371957: 1401958: 1441959: 1351960: 1551961: 1391962: 1661963: 1521964: 1281965: 1241966: 1231967: 1401968: 1491972: 1431973: 1591974: 1471975: 1461976: 1211977: 1511978: 1551979: 1321980: 1431981: 1521982: 1431983: 1391984: 1401985: 1581986: 1691987: 1511988: 1291989: 1471990: 1641991: 1531992: 1371993: 1531994: 1501995: 1611996: 1471997: 1471998: 1761999: 1452000: 1442001: 1532002: 1672003: 1392004: 1342005: 1382006: 1492007: 1682009: 1372010: 1532011: 1582012: 1802013: 1352014: 1432015: 1662016: 1632017: 1482018: 1532019: 1542020: 1442021: 1232022: 1202023: 1272024: 1502025: 1672026: 1511950195819661977198519932001201020182026
Days per year at Mayo with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 180 in 2012.
Days at or above 30 C (86 F) per year at Mayo
YearDaysDecade average
1950133142.6
1951144142.6
1952138142.6
1953133142.6
1954157142.6
1955165142.6
1956137142.6
1957140142.6
1958144142.6
1959135142.6
1960155141.8
1961139141.8
1962166141.8
1963152141.8
1964128141.8
1965124141.8
1966123141.8
1967140141.8
1968149141.8
1972143144.3
1973159144.3
1974147144.3
1975146144.3
1976121144.3
1977151144.3
1978155144.3
1979132144.3
1980143147.1
1981152147.1
1982143147.1
1983139147.1
1984140147.1
1985158147.1
1986169147.1
1987151147.1
1988129147.1
1989147147.1
1990164153.3
1991153153.3
1992137153.3
1993153153.3
1994150153.3
1995161153.3
1996147153.3
1997147153.3
1998176153.3
1999145153.3
2000144147.7
2001153147.7
2002167147.7
2003139147.7
2004134147.7
2005138147.7
2006149147.7
2007168147.7
2009137147.7
2010153155.3
2011158155.3
2012180155.3
2013135155.3
2014143155.3
2015166155.3
2016163155.3
2017148155.3
2018153155.3
2019154155.3
2020144140.3
2021123140.3
2022120140.3
2023127140.3
2024150140.3
2025167140.3
2026151140.3
First to last qualifying date each year at Mayo For each year, a bar from the first to the last day at Mayo meeting 30 C (86 F). 1950: 27 March 1950 to 1 November 19501951: 23 April 1951 to 31 October 19511952: 21 March 1952 to 7 October 19521953: 3 March 1953 to 13 October 19531954: 30 March 1954 to 27 October 19541955: 13 March 1955 to 14 November 19551956: 1 April 1956 to 8 October 19561957: 5 February 1957 to 17 November 19571958: 23 April 1958 to 16 November 19581959: 7 April 1959 to 5 November 19591960: 16 April 1960 to 16 November 19601961: 4 March 1961 to 15 November 19611962: 10 April 1962 to 21 October 19621963: 18 March 1963 to 28 October 19631964: 13 April 1964 to 4 October 19641965: 16 March 1965 to 10 October 19651966: 27 April 1966 to 18 October 19661967: 10 March 1967 to 16 October 19671968: 20 March 1968 to 14 October 19681972: 15 April 1972 to 13 November 19721973: 4 March 1973 to 22 November 19731974: 7 March 1974 to 30 October 19741975: 27 April 1975 to 17 October 19751976: 4 March 1976 to 7 October 19761977: 17 March 1977 to 12 October 19771978: 3 April 1978 to 9 December 19781979: 3 April 1979 to 1 November 19791980: 14 April 1980 to 20 October 19801981: 5 April 1981 to 24 October 19811982: 14 March 1982 to 23 October 19821983: 6 April 1983 to 21 October 19831984: 19 March 1984 to 31 October 19841985: 5 March 1985 to 19 November 19851986: 13 March 1986 to 26 November 19861987: 14 April 1987 to 21 October 19871988: 6 April 1988 to 20 November 19881989: 5 March 1989 to 18 October 19891990: 12 March 1990 to 23 October 19901991: 25 March 1991 to 28 October 19911992: 11 April 1992 to 5 November 19921993: 31 March 1993 to 16 November 19931994: 25 March 1994 to 10 November 19941995: 25 March 1995 to 3 November 19951996: 3 January 1996 to 7 November 19961997: 1 March 1997 to 16 October 19971998: 29 March 1998 to 18 November 19981999: 30 March 1999 to 2 November 19992000: 17 April 2000 to 30 October 20002001: 7 April 2001 to 26 October 20012002: 17 March 2002 to 12 November 20022003: 7 March 2003 to 10 November 20032004: 9 April 2004 to 4 November 20042005: 13 May 2005 to 23 October 20052006: 3 April 2006 to 23 October 20062007: 26 March 2007 to 15 December 20072009: 24 April 2009 to 1 November 20092010: 3 April 2010 to 29 October 20102011: 20 March 2011 to 16 November 20112012: 15 March 2012 to 5 November 20122013: 17 April 2013 to 22 October 20132014: 25 April 2014 to 28 October 20142015: 4 March 2015 to 28 December 20152016: 17 March 2016 to 14 December 20162017: 1 March 2017 to 23 October 20172018: 22 February 2018 to 21 October 20182019: 22 February 2019 to 1 November 20192020: 19 February 2020 to 11 November 20202021: 2 January 2021 to 26 October 20212022: 7 March 2022 to 7 November 20222023: 2 March 2023 to 13 November 20232024: 16 March 2024 to 8 November 20242025: 3 April 2025 to 10 November 20252026: 6 March 2026 to 5 October 202619501960197319831993200320142024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at Mayo meeting 30 C (86 F).
First to last qualifying date each year at Mayo
YearFirst dateLast date
19501950-03-271950-11-01
19511951-04-231951-10-31
19521952-03-211952-10-07
19531953-03-031953-10-13
19541954-03-301954-10-27
19551955-03-131955-11-14
19561956-04-011956-10-08
19571957-02-051957-11-17
19581958-04-231958-11-16
19591959-04-071959-11-05
19601960-04-161960-11-16
19611961-03-041961-11-15
19621962-04-101962-10-21
19631963-03-181963-10-28
19641964-04-131964-10-04
19651965-03-161965-10-10
19661966-04-271966-10-18
19671967-03-101967-10-16
19681968-03-201968-10-14
19721972-04-151972-11-13
19731973-03-041973-11-22
19741974-03-071974-10-30
19751975-04-271975-10-17
19761976-03-041976-10-07
19771977-03-171977-10-12
19781978-04-031978-12-09
19791979-04-031979-11-01
19801980-04-141980-10-20
19811981-04-051981-10-24
19821982-03-141982-10-23
19831983-04-061983-10-21
19841984-03-191984-10-31
19851985-03-051985-11-19
19861986-03-131986-11-26
19871987-04-141987-10-21
19881988-04-061988-11-20
19891989-03-051989-10-18
19901990-03-121990-10-23
19911991-03-251991-10-28
19921992-04-111992-11-05
19931993-03-311993-11-16
19941994-03-251994-11-10
19951995-03-251995-11-03
19961996-01-031996-11-07
19971997-03-011997-10-16
19981998-03-291998-11-18
19991999-03-301999-11-02
20002000-04-172000-10-30
20012001-04-072001-10-26
20022002-03-172002-11-12
20032003-03-072003-11-10
20042004-04-092004-11-04
20052005-05-132005-10-23
20062006-04-032006-10-23
20072007-03-262007-12-15
20092009-04-242009-11-01
20102010-04-032010-10-29
20112011-03-202011-11-16
20122012-03-152012-11-05
20132013-04-172013-10-22
20142014-04-252014-10-28
20152015-03-042015-12-28
20162016-03-172016-12-14
20172017-03-012017-10-23
20182018-02-222018-10-21
20192019-02-222019-11-01
20202020-02-192020-11-11
20212021-01-022021-10-26
20222022-03-072022-11-07
20232023-03-022023-11-13
20242024-03-162024-11-08
20252025-04-032025-11-10
20262026-03-062026-10-05

Every Fixed Threshold

Fixed thresholds at Mayo
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days731802012151
35 C (95 F): Days7272199833
40 C (104 F): Days2119851
90 F (32.2 C): Days73136199899
100 F (37.8 C): Days231619981
0 C (32 F): Ice days (max3119831
0 C (32 F): Frost days (min6159201021
-10 C (14 F): Days with min6219892
20 C (68 F): Tropical nights (min611421975112
25 C (77 F): Days with min24720245
10 mm (0.39 in): Days with 10 mm or more rain7459196432
25 mm (0.98 in): Days with 25 mm or more rain7429196410
50 mm (1.97 in): Days with 50 mm or more rain741020234
100 mm (3.94 in): Days with 100 mm or more rain34419982
200 mm (7.87 in): Days with 200 mm or more rain3220122

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1950.

Download the Data

  • Data for Mayo 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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.

Data as of . Last revised (2026-10-14).