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Built 2026-10-19 (19 October 2026)

Nights at or above 20 C (68 F) in Phoenix

Phoenix has had nights with a minimum temperature at or above 20 C (68 F) in 85 years, most in 2020 with 179. Days per year, season span, streaks and every date.

Key Facts for Phoenix

  • Phoenix has had nights with a minimum temperature at or above 20 C (68 F) in 85 years, 11,363 days in all.
  • The most in one year was 179 days in 2020.
  • In 2026, the latest year on file, there were 185 such days.
  • The earliest first date in a year was 12 March 2015.
  • The latest last date in a year was 14 November 2023.
  • The longest run inside a single year was 161 days in 2003.
  • 9 years with under 90 percent of days observed are left out of these rankings.

Days per Year

85 years, 11,363 days
Nights at or above 20 C (68 F) per year in Phoenix Days per year in Phoenix with a minimum temperature at or above 20 C (68 F). The line is the decade average. The most was 179 in 2020. Grey bars are years with under 90 percent of days observed, left out of rankings. 0501001502001934: 871938: 771941: 611942: 701943: 881944: 701948: 891949: 1021950: 871951: 941952: 1071953: 991954: 1171955: 971956: 1071957: 1071958: 1391959: 1121960: 1241961: 931962: 891963: 1031964: 861965: 761966: 1151967: 1121968: 891969: 1131970: 1091971: 1051972: 1361973: 1171974: 1361975: 1181976: 1291977: 1451978: 1321979: 1391980: 1381981: 1561982: 1371983: 1421984: 1561985: 1531986: 1481987: 1691988: 1681989: 1701990: 1541991: 1581992: 1661993: 1551994: 1371995: 1301996: 1631997: 1601998: 1281999: 1462000: 1582001: 1702002: 1542003: 1642004: 1642005: 1542006: 1562007: 1602008: 1462009: 1602010: 1502011: 1532012: 1662013: 1572014: 1702015: 1602016: 1592017: 1572018: 1652019: 1402020: 1792021: 1582022: 1682023: 1692024: 1712025: 1602026: 185193419521962197219821992200220122022
Days per year in Phoenix with a minimum temperature at or above 20 C (68 F). The line is the decade average. The most was 179 in 2020. Grey bars are years with under 90 percent of days observed, left out of rankings.
Nights at or above 20 C (68 F) per year in Phoenix
YearDaysDecade average
19348782
19387782
19416180
19427080
19438880
19447080
19488980
194910280
195087106.6
195194106.6
1952107106.6
195399106.6
1954117106.6
195597106.6
1956107106.6
1957107106.6
1958139106.6
1959112106.6
1960124100
196193100
196289100
1963103100
196486100
196576100
1966115100
1967112100
196889100
1969113100
1970109126.6
1971105126.6
1972136126.6
1973117126.6
1974136126.6
1975118126.6
1976129126.6
1977145126.6
1978132126.6
1979139126.6
1980138153.7
1981156153.7
1982137153.7
1983142153.7
1984156153.7
1985153153.7
1986148153.7
1987169153.7
1988168153.7
1989170153.7
1990154149.7
1991158149.7
1992166149.7
1993155149.7
1994137149.7
1995130149.7
1996163149.7
1997160149.7
1998128149.7
1999146149.7
2000158158.6
2001170158.6
2002154158.6
2003164158.6
2004164158.6
2005154158.6
2006156158.6
2007160158.6
2008146158.6
2009160158.6
2010150157.7
2011153157.7
2012166157.7
2013157157.7
2014170157.7
2015160157.7
2016159157.7
2017157157.7
2018165157.7
2019140157.7
2020179170
2021158170
2022168170
2023169170
2024171170
2025160170
2026185170

Season Span

earliest 12 March, latest 14 November
First to last qualifying date each year in Phoenix For each year, a bar from the first to the last day in Phoenix meeting 20 C (68 F). Long bars mean a long season. 1934: 11 May 1934 to 10 October 19341938: 15 May 1938 to 29 September 19381941: 14 June 1941 to 18 September 19411942: 23 June 1942 to 21 September 19421943: 26 May 1943 to 28 October 19431944: 29 May 1944 to 13 October 19441948: 11 June 1948 to 17 October 19481949: 26 May 1949 to 3 October 19491950: 8 April 1950 to 14 October 19501951: 20 May 1951 to 2 October 19511952: 7 May 1952 to 3 October 19521953: 24 May 1953 to 4 October 19531954: 14 May 1954 to 9 October 19541955: 7 May 1955 to 3 October 19551956: 9 May 1956 to 1 October 19561957: 6 May 1957 to 11 October 19571958: 7 May 1958 to 18 October 19581959: 25 April 1959 to 18 October 19591960: 11 May 1960 to 3 October 19601961: 14 June 1961 to 14 October 19611962: 23 June 1962 to 25 September 19621963: 7 May 1963 to 11 October 19631964: 25 May 1964 to 26 September 19641965: 11 June 1965 to 21 October 19651966: 3 May 1966 to 2 October 19661967: 18 May 1967 to 5 October 19671968: 29 May 1968 to 15 September 19681969: 13 May 1969 to 2 October 19691970: 15 May 1970 to 19 September 19701971: 12 May 1971 to 10 October 19711972: 11 April 1972 to 17 October 19721973: 13 May 1973 to 17 October 19731974: 24 April 1974 to 21 October 19741975: 16 May 1975 to 3 October 19751976: 1 May 1976 to 2 October 19761977: 23 April 1977 to 19 October 19771978: 15 May 1978 to 14 October 19781979: 15 May 1979 to 9 October 19791980: 20 April 1980 to 14 October 19801981: 12 April 1981 to 11 October 19811982: 12 April 1982 to 26 October 19821983: 22 May 1983 to 26 October 19831984: 16 April 1984 to 12 October 19841985: 8 April 1985 to 28 October 19851986: 28 March 1986 to 17 October 19861987: 22 April 1987 to 29 October 19871988: 7 April 1988 to 1 November 19881989: 5 April 1989 to 20 October 19891990: 14 April 1990 to 29 October 19901991: 7 May 1991 to 23 October 19911992: 15 April 1992 to 24 October 19921993: 29 April 1993 to 27 October 19931994: 17 April 1994 to 10 October 19941995: 30 April 1995 to 16 October 19951996: 18 April 1996 to 14 October 19961997: 21 April 1997 to 10 October 19971998: 19 May 1998 to 23 October 19981999: 21 April 1999 to 15 October 19992000: 27 April 2000 to 19 October 20002001: 19 April 2001 to 10 November 20012002: 13 April 2002 to 17 October 20022003: 3 May 2003 to 23 October 20032004: 22 March 2004 to 17 October 20042005: 5 May 2005 to 17 October 20052006: 4 April 2006 to 24 October 20062007: 27 April 2007 to 29 October 20072008: 27 April 2008 to 29 October 20082009: 21 April 2009 to 20 October 20092010: 18 April 2010 to 19 October 20102011: 3 April 2011 to 25 October 20112012: 20 April 2012 to 21 October 20122013: 25 April 2013 to 13 November 20132014: 11 April 2014 to 1 November 20142015: 12 March 2015 to 28 October 20152016: 22 April 2016 to 9 November 20162017: 19 April 2017 to 4 November 20172018: 23 March 2018 to 22 October 20182019: 20 April 2019 to 18 October 20192020: 24 April 2020 to 6 November 20202021: 2 April 2021 to 9 October 20212022: 19 April 2022 to 22 October 20222023: 24 April 2023 to 14 November 20232024: 20 April 2024 to 27 October 20242025: 26 March 2025 to 22 October 20252026: 17 March 2026 to 12 October 202619341953196419751986199720082019JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day in Phoenix meeting 20 C (68 F). Long bars mean a long season.
First to last qualifying date each year in Phoenix
YearFirst dateLast date
19341934-05-111934-10-10
19381938-05-151938-09-29
19411941-06-141941-09-18
19421942-06-231942-09-21
19431943-05-261943-10-28
19441944-05-291944-10-13
19481948-06-111948-10-17
19491949-05-261949-10-03
19501950-04-081950-10-14
19511951-05-201951-10-02
19521952-05-071952-10-03
19531953-05-241953-10-04
19541954-05-141954-10-09
19551955-05-071955-10-03
19561956-05-091956-10-01
19571957-05-061957-10-11
19581958-05-071958-10-18
19591959-04-251959-10-18
19601960-05-111960-10-03
19611961-06-141961-10-14
19621962-06-231962-09-25
19631963-05-071963-10-11
19641964-05-251964-09-26
19651965-06-111965-10-21
19661966-05-031966-10-02
19671967-05-181967-10-05
19681968-05-291968-09-15
19691969-05-131969-10-02
19701970-05-151970-09-19
19711971-05-121971-10-10
19721972-04-111972-10-17
19731973-05-131973-10-17
19741974-04-241974-10-21
19751975-05-161975-10-03
19761976-05-011976-10-02
19771977-04-231977-10-19
19781978-05-151978-10-14
19791979-05-151979-10-09
19801980-04-201980-10-14
19811981-04-121981-10-11
19821982-04-121982-10-26
19831983-05-221983-10-26
19841984-04-161984-10-12
19851985-04-081985-10-28
19861986-03-281986-10-17
19871987-04-221987-10-29
19881988-04-071988-11-01
19891989-04-051989-10-20
19901990-04-141990-10-29
19911991-05-071991-10-23
19921992-04-151992-10-24
19931993-04-291993-10-27
19941994-04-171994-10-10
19951995-04-301995-10-16
19961996-04-181996-10-14
19971997-04-211997-10-10
19981998-05-191998-10-23
19991999-04-211999-10-15
20002000-04-272000-10-19
20012001-04-192001-11-10
20022002-04-132002-10-17
20032003-05-032003-10-23
20042004-03-222004-10-17
20052005-05-052005-10-17
20062006-04-042006-10-24
20072007-04-272007-10-29
20082008-04-272008-10-29
20092009-04-212009-10-20
20102010-04-182010-10-19
20112011-04-032011-10-25
20122012-04-202012-10-21
20132013-04-252013-11-13
20142014-04-112014-11-01
20152015-03-122015-10-28
20162016-04-222016-11-09
20172017-04-192017-11-04
20182018-03-232018-10-22
20192019-04-202019-10-18
20202020-04-242020-11-06
20212021-04-022021-10-09
20222022-04-192022-10-22
20232023-04-242023-11-14
20242024-04-202024-10-27
20252025-03-262025-10-22
20262026-03-172026-10-12

Every Year

Nights at or above 20 C (68 F) per year in Phoenix
YearDaysFirst dateLast dateLongest streak in yearCoverage
202618517 March 202612 October 2026144 daysIncomplete, not ranked
202516026 March 202522 October 2025115 daysComplete
202417120 April 202427 October 2024149 daysComplete
202316924 April 202314 November 2023153 daysComplete
202216819 April 202222 October 2022154 daysComplete
20211582 April 20219 October 2021130 daysComplete
202017924 April 20206 November 2020144 daysComplete
201914020 April 201918 October 2019124 daysComplete
201816523 March 201822 October 2018145 daysComplete
201715719 April 20174 November 2017126 daysComplete
201615922 April 20169 November 2016119 daysComplete
201516012 March 201528 October 2015133 daysComplete
201417011 April 20141 November 2014129 daysComplete
201315725 April 201313 November 2013136 daysComplete
201216620 April 201221 October 2012136 daysComplete
20111533 April 201125 October 2011122 daysComplete
201015018 April 201019 October 2010130 daysComplete
200916021 April 200920 October 2009131 daysComplete
200814627 April 200829 October 200892 daysComplete
200716027 April 200729 October 2007139 daysComplete
20061564 April 200624 October 2006114 daysComplete
20051545 May 200517 October 2005149 daysComplete
200416422 March 200417 October 2004120 daysComplete
20031643 May 200323 October 2003161 daysComplete
200215413 April 200217 October 2002128 daysComplete
200117019 April 200110 November 2001154 daysComplete
200015827 April 200019 October 2000128 daysComplete
199914621 April 199915 October 1999122 daysComplete
199812819 May 199823 October 1998107 daysComplete
199716021 April 199710 October 1997113 daysComplete
199616318 April 199614 October 1996110 daysComplete
199513030 April 199516 October 1995103 daysComplete
199413717 April 199410 October 1994110 daysComplete
199315529 April 199327 October 1993101 daysComplete
199216615 April 199224 October 1992134 daysComplete
19911587 May 199123 October 1991143 daysComplete
199015414 April 199029 October 1990112 daysComplete
19891705 April 198920 October 1989111 daysComplete
19881687 April 19881 November 1988112 daysComplete
198716922 April 198729 October 1987137 daysComplete
198614828 March 198617 October 1986130 daysComplete
19851538 April 198528 October 1985120 daysComplete
198415616 April 198412 October 1984146 daysComplete
198314222 May 198326 October 1983117 daysComplete
198213712 April 198226 October 198297 daysComplete
198115612 April 198111 October 1981133 daysComplete
198013820 April 198014 October 198097 daysComplete
197913915 May 19799 October 1979112 daysComplete
197813215 May 197814 October 1978104 daysComplete
197714523 April 197719 October 1977111 daysComplete
19761291 May 19762 October 197696 daysComplete
197511816 May 19753 October 197592 daysComplete
197413624 April 197421 October 1974117 daysComplete
197311713 May 197317 October 197376 daysComplete
197213611 April 197217 October 1972115 daysComplete
197110512 May 197110 October 197198 daysComplete
197010915 May 197019 September 197079 daysComplete
196911313 May 19692 October 196991 daysComplete
19688929 May 196815 September 196844 daysComplete
196711218 May 19675 October 196788 daysComplete
19661153 May 19662 October 196681 daysComplete
19657611 June 196521 October 196555 daysComplete
19648625 May 196426 September 196464 daysComplete
19631037 May 196311 October 196381 daysComplete
19628923 June 196225 September 196260 daysComplete
19619314 June 196114 October 196159 daysComplete
196012411 May 19603 October 1960113 daysComplete
195911225 April 195918 October 195999 daysComplete
19581397 May 195818 October 195892 daysComplete
19571076 May 195711 October 195773 daysComplete
19561079 May 19561 October 195628 daysComplete
1955977 May 19553 October 195571 daysComplete
195411714 May 19549 October 195472 daysComplete
19539924 May 19534 October 195363 daysComplete
19521077 May 19523 October 195272 daysComplete
19519420 May 19512 October 195162 daysComplete
1950878 April 195014 October 195037 daysComplete
194910226 May 19493 October 194941 daysComplete
19488911 June 194817 October 194848 daysComplete
19447029 May 194413 October 194430 daysComplete
19438826 May 194328 October 194340 daysComplete
19427023 June 194221 September 194255 daysComplete
19416114 June 194118 September 194124 daysComplete
19387715 May 193829 September 193837 daysComplete
19348711 May 193410 October 193459 daysComplete
Decade averages for Nights at or above 20 C (68 F) in Phoenix
DecadeAverage days per yearYears counted
1930s82.02
1940s80.06
1950s106.610
1960s100.010
1970s126.610
1980s153.710
1990s149.710
2000s158.610
2010s157.710
2020s167.56

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 Nights at or above 20 C (68 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).