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Built 2026-10-19 (19 October 2026)

Days with 10 mm (0.39 in) or more of precipitation in Phoenix

Phoenix has had days with 10 mm (0.39 in) or more of precipitation in 85 years, most in 1941 with 16. Days per year, season span, streaks and every date.

Key Facts for Phoenix

  • Phoenix has had days with 10 mm (0.39 in) or more of precipitation in 85 years, 474 days in all.
  • The most in one year was 16 days in 1941.
  • In 2026, the latest year on file, there were 2 such days.
  • The earliest first date in a year was 1 January 2023.
  • The latest last date in a year was 31 December 1976.
  • The longest run inside a single year was 3 days in 1951.
  • 9 years with under 90 percent of days observed are left out of these rankings.

Days per Year

85 years, 474 days
Days with 10 mm (0.39 in) or more of precipitation per year in Phoenix Days per year in Phoenix with 10 mm (0.39 in) or more of precipitation. The line is the decade average. The most was 16 in 1941. Grey bars are years with under 90 percent of days observed, left out of rankings. 051015201934: 71938: 51941: 161942: 31943: 71944: 61948: 21949: 41950: 11951: 81952: 91953: 11954: 31955: 101956: 21957: 41958: 51959: 91960: 31961: 31962: 11963: 71964: 41965: 91966: 61967: 71968: 41969: 41970: 51971: 11972: 91973: 61974: 51975: 31976: 71977: 21978: 141979: 61980: 31981: 71982: 81983: 81984: 121985: 71986: 81987: 61988: 31989: 51990: 41991: 101992: 111993: 111994: 91995: 91996: 41997: 21998: 91999: 62000: 62001: 62002: 22003: 52004: 52005: 62006: 52007: 32008: 82009: 22010: 72011: 32012: 32013: 82014: 62015: 32016: 42017: 32018: 62019: 32020: 62021: 52022: 62023: 42024: 32025: 42026: 2193419521962197219821992200220122022
Days per year in Phoenix with 10 mm (0.39 in) or more of precipitation. The line is the decade average. The most was 16 in 1941. Grey bars are years with under 90 percent of days observed, left out of rankings.
Days with 10 mm (0.39 in) or more of precipitation per year in Phoenix
YearDaysDecade average
193476
193856
1941166.3
194236.3
194376.3
194466.3
194826.3
194946.3
195015.2
195185.2
195295.2
195315.2
195435.2
1955105.2
195625.2
195745.2
195855.2
195995.2
196034.8
196134.8
196214.8
196374.8
196444.8
196594.8
196664.8
196774.8
196844.8
196944.8
197055.8
197115.8
197295.8
197365.8
197455.8
197535.8
197675.8
197725.8
1978145.8
197965.8
198036.7
198176.7
198286.7
198386.7
1984126.7
198576.7
198686.7
198766.7
198836.7
198956.7
199047.5
1991107.5
1992117.5
1993117.5
199497.5
199597.5
199647.5
199727.5
199897.5
199967.5
200064.8
200164.8
200224.8
200354.8
200454.8
200564.8
200654.8
200734.8
200884.8
200924.8
201074.6
201134.6
201234.6
201384.6
201464.6
201534.6
201644.6
201734.6
201864.6
201934.6
202064.3
202154.3
202264.3
202344.3
202434.3
202544.3
202624.3

Season Span

earliest 1 January, latest 31 December
First to last qualifying date each year in Phoenix For each year, a bar from the first to the last day in Phoenix meeting 10 mm (0.39 in). Long bars mean a long season. 1934: 29 January 1934 to 28 December 19341938: 4 March 1938 to 21 December 19381941: 24 January 1941 to 11 December 19411942: 23 April 1942 to 25 August 19421943: 27 January 1943 to 21 December 19431944: 24 February 1944 to 24 December 19441948: 26 February 1948 to 25 July 19481949: 25 January 1949 to 18 October 19491950: 26 February 1950 to 26 February 19501951: 30 January 1951 to 23 November 19511952: 1 March 1952 to 24 November 19521953: 15 May 1953 to 15 May 19531954: 20 January 1954 to 22 March 19541955: 3 January 1955 to 12 August 19551956: 28 January 1956 to 13 July 19561957: 17 July 1957 to 31 October 19571958: 4 February 1958 to 5 October 19581959: 26 July 1959 to 25 December 19591960: 13 January 1960 to 14 October 19601961: 23 August 1961 to 15 December 19611962: 21 January 1962 to 21 January 19621963: 3 January 1963 to 19 October 19631964: 2 August 1964 to 18 December 19641965: 6 January 1965 to 22 December 19651966: 7 February 1966 to 26 December 19661967: 29 March 1967 to 19 December 19671968: 12 February 1968 to 13 November 19681969: 14 January 1969 to 16 September 19691970: 1 March 1970 to 5 September 19701971: 29 September 1971 to 29 September 19711972: 22 June 1972 to 28 December 19721973: 21 February 1973 to 22 November 19731974: 20 March 1974 to 2 November 19741975: 7 September 1975 to 13 December 19751976: 3 March 1976 to 31 December 19761977: 27 September 1977 to 29 December 19771978: 10 January 1978 to 18 December 19781979: 16 January 1979 to 12 August 19791980: 18 January 1980 to 19 February 19801981: 12 January 1981 to 29 November 19811982: 12 August 1982 to 10 December 19821983: 27 January 1983 to 2 December 19831984: 6 April 1984 to 28 December 19841985: 26 January 1985 to 11 December 19851986: 8 February 1986 to 7 December 19861987: 24 February 1987 to 17 December 19871988: 20 July 1988 to 25 November 19881989: 4 January 1989 to 16 August 19891990: 17 January 1990 to 20 September 19901991: 28 February 1991 to 19 December 19911992: 6 January 1992 to 28 December 19921993: 7 January 1993 to 15 November 19931994: 7 March 1994 to 25 December 19941995: 4 January 1995 to 5 November 19951996: 1 February 1996 to 25 July 19961997: 13 January 1997 to 8 August 19971998: 4 February 1998 to 15 December 19981999: 2 April 1999 to 19 September 19992000: 5 March 2000 to 6 November 20002001: 12 January 2001 to 4 December 20012002: 14 July 2002 to 23 July 20022003: 8 January 2003 to 12 November 20032004: 23 February 2004 to 29 December 20042005: 3 January 2005 to 2 August 20052006: 11 March 2006 to 2 September 20062007: 22 March 2007 to 7 December 20072008: 7 January 2008 to 28 August 20082009: 8 February 2009 to 9 February 20092010: 19 January 2010 to 29 December 20102011: 11 July 2011 to 13 December 20112012: 23 August 2012 to 14 December 20122013: 26 January 2013 to 23 November 20132014: 1 March 2014 to 4 December 20142015: 15 May 2015 to 22 September 20152016: 7 January 2016 to 22 December 20162017: 20 January 2017 to 3 August 20172018: 9 July 2018 to 13 October 20182019: 6 January 2019 to 29 November 20192020: 22 February 2020 to 10 December 20202021: 23 July 2021 to 24 December 20212022: 4 August 2022 to 28 December 20222023: 1 January 2023 to 22 December 20232024: 23 January 2024 to 1 April 20242025: 26 September 2025 to 22 November 20252026: 16 September 2026 to 29 September 202619341953196419751986199720082019JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day in Phoenix meeting 10 mm (0.39 in). Long bars mean a long season.
First to last qualifying date each year in Phoenix
YearFirst dateLast date
19341934-01-291934-12-28
19381938-03-041938-12-21
19411941-01-241941-12-11
19421942-04-231942-08-25
19431943-01-271943-12-21
19441944-02-241944-12-24
19481948-02-261948-07-25
19491949-01-251949-10-18
19501950-02-261950-02-26
19511951-01-301951-11-23
19521952-03-011952-11-24
19531953-05-151953-05-15
19541954-01-201954-03-22
19551955-01-031955-08-12
19561956-01-281956-07-13
19571957-07-171957-10-31
19581958-02-041958-10-05
19591959-07-261959-12-25
19601960-01-131960-10-14
19611961-08-231961-12-15
19621962-01-211962-01-21
19631963-01-031963-10-19
19641964-08-021964-12-18
19651965-01-061965-12-22
19661966-02-071966-12-26
19671967-03-291967-12-19
19681968-02-121968-11-13
19691969-01-141969-09-16
19701970-03-011970-09-05
19711971-09-291971-09-29
19721972-06-221972-12-28
19731973-02-211973-11-22
19741974-03-201974-11-02
19751975-09-071975-12-13
19761976-03-031976-12-31
19771977-09-271977-12-29
19781978-01-101978-12-18
19791979-01-161979-08-12
19801980-01-181980-02-19
19811981-01-121981-11-29
19821982-08-121982-12-10
19831983-01-271983-12-02
19841984-04-061984-12-28
19851985-01-261985-12-11
19861986-02-081986-12-07
19871987-02-241987-12-17
19881988-07-201988-11-25
19891989-01-041989-08-16
19901990-01-171990-09-20
19911991-02-281991-12-19
19921992-01-061992-12-28
19931993-01-071993-11-15
19941994-03-071994-12-25
19951995-01-041995-11-05
19961996-02-011996-07-25
19971997-01-131997-08-08
19981998-02-041998-12-15
19991999-04-021999-09-19
20002000-03-052000-11-06
20012001-01-122001-12-04
20022002-07-142002-07-23
20032003-01-082003-11-12
20042004-02-232004-12-29
20052005-01-032005-08-02
20062006-03-112006-09-02
20072007-03-222007-12-07
20082008-01-072008-08-28
20092009-02-082009-02-09
20102010-01-192010-12-29
20112011-07-112011-12-13
20122012-08-232012-12-14
20132013-01-262013-11-23
20142014-03-012014-12-04
20152015-05-152015-09-22
20162016-01-072016-12-22
20172017-01-202017-08-03
20182018-07-092018-10-13
20192019-01-062019-11-29
20202020-02-222020-12-10
20212021-07-232021-12-24
20222022-08-042022-12-28
20232023-01-012023-12-22
20242024-01-232024-04-01
20252025-09-262025-11-22
20262026-09-162026-09-29

Every Year

Days with 10 mm (0.39 in) or more of precipitation per year in Phoenix
YearDaysFirst dateLast dateLongest streak in yearCoverage
2026216 September 202629 September 20261 daysIncomplete, not ranked
2025426 September 202522 November 20252 daysComplete
2024323 January 20241 April 20242 daysComplete
202341 January 202322 December 20231 daysComplete
202264 August 202228 December 20222 daysComplete
2021523 July 202124 December 20211 daysComplete
2020622 February 202010 December 20203 daysComplete
201936 January 201929 November 20191 daysComplete
201869 July 201813 October 20181 daysComplete
2017320 January 20173 August 20171 daysComplete
201647 January 201622 December 20161 daysComplete
2015315 May 201522 September 20151 daysComplete
201461 March 20144 December 20141 daysComplete
2013826 January 201323 November 20133 daysComplete
2012323 August 201214 December 20121 daysComplete
2011311 July 201113 December 20111 daysComplete
2010719 January 201029 December 20101 daysComplete
200928 February 20099 February 20092 daysComplete
200887 January 200828 August 20081 daysComplete
2007322 March 20077 December 20071 daysComplete
2006511 March 20062 September 20062 daysComplete
200563 January 20052 August 20052 daysComplete
2004523 February 200429 December 20041 daysComplete
200358 January 200312 November 20031 daysComplete
2002214 July 200223 July 20021 daysComplete
2001612 January 20014 December 20011 daysComplete
200065 March 20006 November 20002 daysComplete
199962 April 199919 September 19992 daysComplete
199894 February 199815 December 19981 daysComplete
1997213 January 19978 August 19971 daysComplete
199641 February 199625 July 19961 daysComplete
199594 January 19955 November 19952 daysComplete
199497 March 199425 December 19942 daysComplete
1993117 January 199315 November 19933 daysComplete
1992116 January 199228 December 19921 daysComplete
19911028 February 199119 December 19912 daysComplete
1990417 January 199020 September 19902 daysComplete
198954 January 198916 August 19892 daysComplete
1988320 July 198825 November 19881 daysComplete
1987624 February 198717 December 19872 daysComplete
198688 February 19867 December 19861 daysComplete
1985726 January 198511 December 19851 daysComplete
1984126 April 198428 December 19842 daysComplete
1983827 January 19832 December 19831 daysComplete
1982812 August 198210 December 19822 daysComplete
1981712 January 198129 November 19812 daysComplete
1980318 January 198019 February 19801 daysComplete
1979616 January 197912 August 19792 daysComplete
19781410 January 197818 December 19782 daysComplete
1977227 September 197729 December 19771 daysComplete
197673 March 197631 December 19761 daysComplete
197537 September 197513 December 19751 daysComplete
1974520 March 19742 November 19741 daysComplete
1973621 February 197322 November 19731 daysComplete
1972922 June 197228 December 19722 daysComplete
1971129 September 197129 September 19711 daysComplete
197051 March 19705 September 19702 daysComplete
1969414 January 196916 September 19691 daysComplete
1968412 February 196813 November 19681 daysComplete
1967729 March 196719 December 19672 daysComplete
196667 February 196626 December 19662 daysComplete
196596 January 196522 December 19652 daysComplete
196442 August 196418 December 19641 daysComplete
196373 January 196319 October 19631 daysComplete
1962121 January 196221 January 19621 daysComplete
1961323 August 196115 December 19611 daysComplete
1960313 January 196014 October 19601 daysComplete
1959926 July 195925 December 19592 daysComplete
195854 February 19585 October 19581 daysComplete
1957417 July 195731 October 19571 daysComplete
1956228 January 195613 July 19561 daysComplete
1955103 January 195512 August 19552 daysComplete
1954320 January 195422 March 19541 daysComplete
1953115 May 195315 May 19531 daysComplete
195291 March 195224 November 19522 daysComplete
1951830 January 195123 November 19513 daysComplete
1950126 February 195026 February 19501 daysComplete
1949425 January 194918 October 19491 daysComplete
1948226 February 194825 July 19481 daysComplete
1944624 February 194424 December 19441 daysComplete
1943727 January 194321 December 19431 daysComplete
1942323 April 194225 August 19421 daysComplete
19411624 January 194111 December 19412 daysComplete
193854 March 193821 December 19382 daysComplete
1934729 January 193428 December 19342 daysComplete
Decade averages for Days with 10 mm (0.39 in) or more of precipitation in Phoenix
DecadeAverage days per yearYears counted
1930s6.02
1940s6.36
1950s5.210
1960s4.810
1970s5.810
1980s6.710
1990s7.510
2000s4.810
2010s4.610
2020s4.76

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 with 10 mm (0.39 in) or more of precipitation 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).