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Built 2026-10-19 (19 October 2026)

Days at or above 45 C (113 F) in Phoenix

Phoenix has had days with a maximum temperature at or above 45 C (113 F) in 71 years, most in 2023 with 35. Days per year, season span, streaks and every date.

Key Facts for Phoenix

  • Phoenix has had days with a maximum temperature at or above 45 C (113 F) in 71 years, 465 days in all.
  • The most in one year was 35 days in 2023.
  • In 2026, the latest year on file, there were 22 such days.
  • The earliest first date in a year was 26 May 1951.
  • The latest last date in a year was 6 October 2024.
  • The longest run inside a single year was 17 days in 2023.
  • 9 years with under 90 percent of days observed are left out of these rankings.

Days per Year

71 years, 465 days
Days at or above 45 C (113 F) per year in Phoenix Days per year in Phoenix with a maximum temperature at or above 45 C (113 F). The line is the decade average. The most was 35 in 2023. Grey bars are years with under 90 percent of days observed, left out of rankings. 0102030401934: 51942: 51943: 31944: 11948: 71949: 11950: 71951: 11958: 41960: 11961: 51962: 31965: 11966: 11968: 51969: 31970: 31971: 11972: 41973: 61974: 101975: 41976: 11977: 31978: 71979: 101980: 21981: 31982: 21983: 31984: 11985: 101986: 21987: 31988: 61989: 121990: 111991: 11992: 21993: 41994: 71995: 121996: 11997: 11998: 52000: 22001: 62002: 22003: 82005: 92006: 92007: 92008: 52009: 152010: 62011: 92012: 72013: 62014: 32015: 62016: 62017: 82018: 72019: 102020: 202021: 102022: 92023: 352024: 302025: 162026: 2219341961197419841994200620162026
Days per year in Phoenix with a maximum temperature at or above 45 C (113 F). The line is the decade average. The most was 35 in 2023. Grey bars are years with under 90 percent of days observed, left out of rankings.
Days at or above 45 C (113 F) per year in Phoenix
YearDaysDecade average
193455
194253.4
194333.4
194413.4
194873.4
194913.4
195074
195114
195844
196012.7
196152.7
196232.7
196512.7
196612.7
196852.7
196932.7
197034.9
197114.9
197244.9
197364.9
1974104.9
197544.9
197614.9
197734.9
197874.9
1979104.9
198024.4
198134.4
198224.4
198334.4
198414.4
1985104.4
198624.4
198734.4
198864.4
1989124.4
1990114.9
199114.9
199224.9
199344.9
199474.9
1995124.9
199614.9
199714.9
199854.9
200027.2
200167.2
200227.2
200387.2
200597.2
200697.2
200797.2
200857.2
2009157.2
201066.8
201196.8
201276.8
201366.8
201436.8
201566.8
201666.8
201786.8
201876.8
2019106.8
20202020.3
20211020.3
2022920.3
20233520.3
20243020.3
20251620.3
20262220.3

Season Span

earliest 26 May, latest 6 October
First to last qualifying date each year in Phoenix For each year, a bar from the first to the last day in Phoenix meeting 45 C (113 F). Long bars mean a long season. 1934: 10 July 1934 to 30 July 19341942: 22 June 1942 to 13 July 19421943: 24 July 1943 to 30 July 19431944: 4 August 1944 to 4 August 19441948: 29 June 1948 to 3 September 19481949: 14 July 1949 to 14 July 19491950: 28 June 1950 to 1 September 19501951: 26 May 1951 to 26 May 19511958: 8 July 1958 to 11 July 19581960: 19 June 1960 to 19 June 19601961: 14 June 1961 to 19 July 19611962: 25 June 1962 to 13 August 19621965: 4 July 1965 to 4 July 19651966: 6 July 1966 to 6 July 19661968: 18 June 1968 to 22 June 19681969: 31 July 1969 to 5 August 19691970: 24 June 1970 to 13 July 19701971: 11 July 1971 to 11 July 19711972: 4 July 1972 to 1 August 19721973: 8 June 1973 to 5 July 19731974: 14 June 1974 to 25 July 19741975: 10 July 1975 to 4 August 19751976: 27 June 1976 to 27 June 19761977: 28 June 1977 to 5 August 19771978: 9 June 1978 to 20 July 19781979: 13 June 1979 to 28 July 19791980: 29 June 1980 to 28 July 19801981: 25 June 1981 to 29 August 19811982: 12 July 1982 to 14 July 19821983: 28 May 1983 to 6 July 19831984: 28 May 1984 to 28 May 19841985: 7 June 1985 to 24 August 19851986: 31 July 1986 to 19 August 19861987: 14 June 1987 to 24 July 19871988: 16 June 1988 to 14 August 19881989: 18 June 1989 to 20 July 19891990: 4 June 1990 to 1 July 19901991: 8 August 1991 to 8 August 19911992: 16 August 1992 to 17 August 19921993: 26 June 1993 to 1 August 19931994: 24 June 1994 to 5 August 19941995: 7 July 1995 to 6 August 19951996: 31 July 1996 to 31 July 19961997: 15 July 1997 to 15 July 19971998: 11 July 1998 to 28 August 19982000: 18 July 2000 to 19 July 20002001: 29 June 2001 to 26 August 20012002: 25 June 2002 to 2 July 20022003: 4 July 2003 to 13 August 20032005: 21 June 2005 to 28 August 20052006: 25 June 2006 to 24 July 20062007: 1 July 2007 to 29 August 20072008: 17 June 2008 to 1 August 20082009: 11 July 2009 to 29 August 20092010: 24 June 2010 to 16 July 20102011: 27 June 2011 to 30 August 20112012: 9 July 2012 to 14 August 20122013: 28 June 2013 to 17 August 20132014: 22 July 2014 to 24 July 20142015: 17 June 2015 to 15 August 20152016: 3 June 2016 to 28 June 20162017: 19 June 2017 to 8 July 20172018: 5 July 2018 to 6 August 20182019: 11 July 2019 to 21 August 20192020: 11 July 2020 to 6 September 20202021: 13 June 2021 to 4 August 20212022: 10 June 2022 to 22 July 20222023: 1 July 2023 to 10 September 20232024: 6 June 2024 to 6 October 20242025: 15 June 2025 to 21 August 20252026: 6 July 2026 to 29 August 202619341960197219811990200020102019JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day in Phoenix meeting 45 C (113 F). Long bars mean a long season.
First to last qualifying date each year in Phoenix
YearFirst dateLast date
19341934-07-101934-07-30
19421942-06-221942-07-13
19431943-07-241943-07-30
19441944-08-041944-08-04
19481948-06-291948-09-03
19491949-07-141949-07-14
19501950-06-281950-09-01
19511951-05-261951-05-26
19581958-07-081958-07-11
19601960-06-191960-06-19
19611961-06-141961-07-19
19621962-06-251962-08-13
19651965-07-041965-07-04
19661966-07-061966-07-06
19681968-06-181968-06-22
19691969-07-311969-08-05
19701970-06-241970-07-13
19711971-07-111971-07-11
19721972-07-041972-08-01
19731973-06-081973-07-05
19741974-06-141974-07-25
19751975-07-101975-08-04
19761976-06-271976-06-27
19771977-06-281977-08-05
19781978-06-091978-07-20
19791979-06-131979-07-28
19801980-06-291980-07-28
19811981-06-251981-08-29
19821982-07-121982-07-14
19831983-05-281983-07-06
19841984-05-281984-05-28
19851985-06-071985-08-24
19861986-07-311986-08-19
19871987-06-141987-07-24
19881988-06-161988-08-14
19891989-06-181989-07-20
19901990-06-041990-07-01
19911991-08-081991-08-08
19921992-08-161992-08-17
19931993-06-261993-08-01
19941994-06-241994-08-05
19951995-07-071995-08-06
19961996-07-311996-07-31
19971997-07-151997-07-15
19981998-07-111998-08-28
20002000-07-182000-07-19
20012001-06-292001-08-26
20022002-06-252002-07-02
20032003-07-042003-08-13
20052005-06-212005-08-28
20062006-06-252006-07-24
20072007-07-012007-08-29
20082008-06-172008-08-01
20092009-07-112009-08-29
20102010-06-242010-07-16
20112011-06-272011-08-30
20122012-07-092012-08-14
20132013-06-282013-08-17
20142014-07-222014-07-24
20152015-06-172015-08-15
20162016-06-032016-06-28
20172017-06-192017-07-08
20182018-07-052018-08-06
20192019-07-112019-08-21
20202020-07-112020-09-06
20212021-06-132021-08-04
20222022-06-102022-07-22
20232023-07-012023-09-10
20242024-06-062024-10-06
20252025-06-152025-08-21
20262026-07-062026-08-29

Every Year

Days at or above 45 C (113 F) per year in Phoenix
YearDaysFirst dateLast dateLongest streak in yearCoverage
2026226 July 202629 August 20265 daysIncomplete, not ranked
20251615 June 202521 August 20254 daysComplete
2024306 June 20246 October 202411 daysComplete
2023351 July 202310 September 202317 daysComplete
2022910 June 202222 July 20223 daysComplete
20211013 June 20214 August 20218 daysComplete
20202011 July 20206 September 20207 daysComplete
20191011 July 201921 August 20192 daysComplete
201875 July 20186 August 20183 daysComplete
2017819 June 20178 July 20174 daysComplete
201663 June 201628 June 20163 daysComplete
2015617 June 201515 August 20153 daysComplete
2014322 July 201424 July 20143 daysComplete
2013628 June 201317 August 20133 daysComplete
201279 July 201214 August 20123 daysComplete
2011927 June 201130 August 20115 daysComplete
2010624 June 201016 July 20103 daysComplete
20091511 July 200929 August 20094 daysComplete
2008517 June 20081 August 20082 daysComplete
200791 July 200729 August 20074 daysComplete
2006925 June 200624 July 20064 daysComplete
2005921 June 200528 August 20054 daysComplete
200384 July 200313 August 20034 daysComplete
2002225 June 20022 July 20021 daysComplete
2001629 June 200126 August 20012 daysComplete
2000218 July 200019 July 20002 daysComplete
1998511 July 199828 August 19982 daysComplete
1997115 July 199715 July 19971 daysComplete
1996131 July 199631 July 19961 daysComplete
1995127 July 19956 August 19956 daysComplete
1994724 June 19945 August 19943 daysComplete
1993426 June 19931 August 19932 daysComplete
1992216 August 199217 August 19922 daysComplete
199118 August 19918 August 19911 daysComplete
1990114 June 19901 July 19909 daysComplete
19891218 June 198920 July 19895 daysComplete
1988616 June 198814 August 19883 daysComplete
1987314 June 198724 July 19871 daysComplete
1986231 July 198619 August 19861 daysComplete
1985107 June 198524 August 19853 daysComplete
1984128 May 198428 May 19841 daysComplete
1983328 May 19836 July 19832 daysComplete
1982212 July 198214 July 19821 daysComplete
1981325 June 198129 August 19811 daysComplete
1980229 June 198028 July 19801 daysComplete
19791013 June 197928 July 19794 daysComplete
197879 June 197820 July 19783 daysComplete
1977328 June 19775 August 19772 daysComplete
1976127 June 197627 June 19761 daysComplete
1975410 July 19754 August 19752 daysComplete
19741014 June 197425 July 19743 daysComplete
197368 June 19735 July 19732 daysComplete
197244 July 19721 August 19722 daysComplete
1971111 July 197111 July 19711 daysComplete
1970324 June 197013 July 19702 daysComplete
1969331 July 19695 August 19692 daysComplete
1968518 June 196822 June 19685 daysComplete
196616 July 19666 July 19661 daysComplete
196514 July 19654 July 19651 daysComplete
1962325 June 196213 August 19621 daysComplete
1961514 June 196119 July 19613 daysComplete
1960119 June 196019 June 19601 daysComplete
195848 July 195811 July 19584 daysComplete
1951126 May 195126 May 19511 daysComplete
1950728 June 19501 September 19503 daysComplete
1949114 July 194914 July 19491 daysComplete
1948729 June 19483 September 19482 daysComplete
194414 August 19444 August 19441 daysComplete
1943324 July 194330 July 19432 daysComplete
1942522 June 194213 July 19423 daysComplete
1934510 July 193430 July 19342 daysComplete
Decade averages for Days at or above 45 C (113 F) in Phoenix
DecadeAverage days per yearYears counted
1930s5.01
1940s3.45
1950s4.03
1960s2.77
1970s4.910
1980s4.410
1990s4.99
2000s7.29
2010s6.810
2020s20.06

Compare with your own threshold in the threshold explorer. Fahrenheit thresholds are converted to tenths of a degree Celsius once, rounding half up.

Download the Data

  • Data for Days at or above 45 C (113 F) in Phoenix, 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 from the threaded city record.

Data as of . Last revised (2026-10-17).