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Data as of 2026-10-17
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Built 2026-10-19 (19 October 2026)

McCarran Intl AP Threshold Days by Year (USW00023169)

17 fixed thresholds counted per year at McCarran Intl AP (USW00023169): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for McCarran Intl AP Thresholds

  • McCarran Intl AP: days with a maximum temperature at or above 30 C (86 F) in 78 years, most in 2020 with 178.
  • McCarran Intl AP: days with a maximum temperature at or above 35 C (95 F) in 78 years, most in 2024 with 136.
  • McCarran Intl AP: days with a maximum temperature at or above 40 C (104 F) in 78 years, most in 2024 with 87.
  • McCarran Intl AP: days with a maximum temperature at or above 90 F (32.2 C) in 78 years, most in 2020 with 158.
  • 17 fixed thresholds have at least one qualifying day at McCarran Intl AP.
78 years with a qualifying day
Days at or above 30 C (86 F) per year at McCarran Intl AP Days per year at McCarran Intl AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 178 in 2020. 0501001502001949: 1501950: 1681951: 1431952: 1621953: 1461954: 1751955: 1501956: 1561957: 1331958: 1701959: 1611960: 1611961: 1531962: 1571963: 1501964: 1541965: 1431966: 1711967: 1461968: 1411969: 1561970: 1411971: 1371972: 1521973: 1631974: 1611975: 1481976: 1481977: 1601978: 1571979: 1631980: 1511981: 1581982: 1361983: 1241984: 1491985: 1531986: 1431987: 1621988: 1691989: 1751990: 1561991: 1521992: 1681993: 1531994: 1561995: 1431996: 1661997: 1621998: 1231999: 1482000: 1612001: 1722002: 1542003: 1632004: 1682005: 1492006: 1482007: 1642008: 1572009: 1582010: 1452011: 1552012: 1672013: 1542014: 1672015: 1582016: 1542017: 1562018: 1652019: 1452020: 1782021: 1612022: 1722023: 1582024: 1672025: 1622026: 1731949195719651973198119891997200520132021
Days per year at McCarran Intl AP with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 178 in 2020.
Days at or above 30 C (86 F) per year at McCarran Intl AP
YearDaysDecade average
1949150150
1950168156.4
1951143156.4
1952162156.4
1953146156.4
1954175156.4
1955150156.4
1956156156.4
1957133156.4
1958170156.4
1959161156.4
1960161153.2
1961153153.2
1962157153.2
1963150153.2
1964154153.2
1965143153.2
1966171153.2
1967146153.2
1968141153.2
1969156153.2
1970141153
1971137153
1972152153
1973163153
1974161153
1975148153
1976148153
1977160153
1978157153
1979163153
1980151152
1981158152
1982136152
1983124152
1984149152
1985153152
1986143152
1987162152
1988169152
1989175152
1990156152.7
1991152152.7
1992168152.7
1993153152.7
1994156152.7
1995143152.7
1996166152.7
1997162152.7
1998123152.7
1999148152.7
2000161159.4
2001172159.4
2002154159.4
2003163159.4
2004168159.4
2005149159.4
2006148159.4
2007164159.4
2008157159.4
2009158159.4
2010145156.6
2011155156.6
2012167156.6
2013154156.6
2014167156.6
2015158156.6
2016154156.6
2017156156.6
2018165156.6
2019145156.6
2020178167.3
2021161167.3
2022172167.3
2023158167.3
2024167167.3
2025162167.3
2026173167.3
First to last qualifying date each year at McCarran Intl AP For each year, a bar from the first to the last day at McCarran Intl AP meeting 30 C (86 F). 1949: 12 April 1949 to 14 October 19491950: 31 March 1950 to 29 October 19501951: 9 April 1951 to 20 October 19511952: 6 April 1952 to 23 October 19521953: 4 April 1953 to 18 October 19531954: 13 April 1954 to 22 October 19541955: 5 May 1955 to 19 October 19551956: 24 March 1956 to 18 October 19561957: 13 April 1957 to 10 October 19571958: 16 April 1958 to 19 October 19581959: 2 April 1959 to 27 October 19591960: 26 March 1960 to 26 October 19601961: 2 April 1961 to 20 October 19611962: 27 March 1962 to 13 October 19621963: 30 April 1963 to 11 October 19631964: 11 April 1964 to 22 October 19641965: 19 April 1965 to 26 October 19651966: 29 March 1966 to 20 October 19661967: 7 May 1967 to 23 October 19671968: 30 March 1968 to 26 October 19681969: 30 March 1969 to 9 October 19691970: 10 April 1970 to 10 October 19701971: 30 March 1971 to 14 October 19711972: 9 March 1972 to 2 October 19721973: 26 April 1973 to 22 October 19731974: 8 April 1974 to 21 October 19741975: 3 May 1975 to 20 October 19751976: 21 April 1976 to 13 October 19761977: 6 April 1977 to 26 October 19771978: 12 April 1978 to 19 October 19781979: 14 April 1979 to 25 October 19791980: 17 April 1980 to 12 October 19801981: 25 March 1981 to 7 October 19811982: 25 April 1982 to 17 October 19821983: 8 May 1983 to 9 October 19831984: 14 April 1984 to 10 October 19841985: 3 April 1985 to 6 October 19851986: 26 February 1986 to 8 October 19861987: 10 April 1987 to 18 October 19871988: 26 March 1988 to 1 November 19881989: 8 March 1989 to 14 October 19891990: 22 March 1990 to 29 October 19901991: 5 April 1991 to 19 October 19911992: 11 April 1992 to 23 October 19921993: 21 April 1993 to 25 October 19931994: 13 April 1994 to 12 October 19941995: 25 April 1995 to 21 October 19951996: 21 March 1996 to 15 October 19961997: 20 March 1997 to 6 October 19971998: 23 March 1998 to 13 October 19981999: 18 April 1999 to 15 October 19992000: 4 April 2000 to 20 October 20002001: 16 April 2001 to 28 October 20012002: 1 April 2002 to 10 October 20022003: 12 May 2003 to 28 October 20032004: 19 March 2004 to 16 October 20042005: 16 April 2005 to 15 October 20052006: 13 April 2006 to 4 October 20062007: 13 March 2007 to 28 October 20072008: 13 April 2008 to 30 October 20082009: 20 April 2009 to 18 October 20092010: 18 April 2010 to 3 November 20102011: 31 March 2011 to 25 October 20112012: 31 March 2012 to 20 October 20122013: 14 March 2013 to 3 October 20132014: 17 March 2014 to 25 October 20142015: 27 March 2015 to 2 November 20152016: 20 March 2016 to 22 October 20162017: 12 March 2017 to 26 October 20172018: 31 March 2018 to 29 October 20182019: 8 April 2019 to 16 October 20192020: 22 April 2020 to 6 November 20202021: 2 April 2021 to 4 October 20212022: 25 March 2022 to 20 October 20222023: 10 April 2023 to 22 October 20232024: 12 April 2024 to 16 October 20242025: 25 March 2025 to 11 October 20252026: 1 March 2026 to 10 October 202619491959196919791989199920092019JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day at McCarran Intl AP meeting 30 C (86 F).
First to last qualifying date each year at McCarran Intl AP
YearFirst dateLast date
19491949-04-121949-10-14
19501950-03-311950-10-29
19511951-04-091951-10-20
19521952-04-061952-10-23
19531953-04-041953-10-18
19541954-04-131954-10-22
19551955-05-051955-10-19
19561956-03-241956-10-18
19571957-04-131957-10-10
19581958-04-161958-10-19
19591959-04-021959-10-27
19601960-03-261960-10-26
19611961-04-021961-10-20
19621962-03-271962-10-13
19631963-04-301963-10-11
19641964-04-111964-10-22
19651965-04-191965-10-26
19661966-03-291966-10-20
19671967-05-071967-10-23
19681968-03-301968-10-26
19691969-03-301969-10-09
19701970-04-101970-10-10
19711971-03-301971-10-14
19721972-03-091972-10-02
19731973-04-261973-10-22
19741974-04-081974-10-21
19751975-05-031975-10-20
19761976-04-211976-10-13
19771977-04-061977-10-26
19781978-04-121978-10-19
19791979-04-141979-10-25
19801980-04-171980-10-12
19811981-03-251981-10-07
19821982-04-251982-10-17
19831983-05-081983-10-09
19841984-04-141984-10-10
19851985-04-031985-10-06
19861986-02-261986-10-08
19871987-04-101987-10-18
19881988-03-261988-11-01
19891989-03-081989-10-14
19901990-03-221990-10-29
19911991-04-051991-10-19
19921992-04-111992-10-23
19931993-04-211993-10-25
19941994-04-131994-10-12
19951995-04-251995-10-21
19961996-03-211996-10-15
19971997-03-201997-10-06
19981998-03-231998-10-13
19991999-04-181999-10-15
20002000-04-042000-10-20
20012001-04-162001-10-28
20022002-04-012002-10-10
20032003-05-122003-10-28
20042004-03-192004-10-16
20052005-04-162005-10-15
20062006-04-132006-10-04
20072007-03-132007-10-28
20082008-04-132008-10-30
20092009-04-202009-10-18
20102010-04-182010-11-03
20112011-03-312011-10-25
20122012-03-312012-10-20
20132013-03-142013-10-03
20142014-03-172014-10-25
20152015-03-272015-11-02
20162016-03-202016-10-22
20172017-03-122017-10-26
20182018-03-312018-10-29
20192019-04-082019-10-16
20202020-04-222020-11-06
20212021-04-022021-10-04
20222022-03-252022-10-20
20232023-04-102023-10-22
20242024-04-122024-10-16
20252025-03-252025-10-11
20262026-03-012026-10-10

Every Fixed Threshold

Fixed thresholds at McCarran Intl AP
ThresholdYears with a qualifying dayMost days in a yearYearLatest year days
30 C (86 F): Days781782020173
35 C (95 F): Days781362024133
40 C (104 F): Days7887202465
45 C (113 F): Days491520248
90 F (32.2 C): Days781582020160
100 F (37.8 C): Days78112202490
110 F (43.3 C): Days7536202423
120 F (48.9 C): Days1120241
0 C (32 F): Ice days (max3219632
0 C (32 F): Frost days (min766919493
-10 C (14 F): Days with min6319503
20 C (68 F): Tropical nights (min781552012152
25 C (77 F): Days with min78102202488
10 mm (0.39 in): Days with 10 mm or more rain711019921
25 mm (0.98 in): Days with 25 mm or more rain21219551
50 mm (1.97 in): Days with 50 mm or more rain1119571
10 cm (3.9 in): Days with 10 cm or more snowfall3319741

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1949.

Download the Data

  • Data for McCarran Intl 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).