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Built 2026-10-19 (19 October 2026)

Days at or above 35 C (95 F) in Washington, D.C.

Washington, D.C. has had days with a maximum temperature at or above 35 C (95 F) in 81 years, most in 2012 with 29. Days per year, season span, streaks and every date.

Key Facts for Washington, D.C.

  • Washington, D.C. has had days with a maximum temperature at or above 35 C (95 F) in 81 years, 767 days in all.
  • The most in one year was 29 days in 2012.
  • In 2026, the latest year on file, there were 15 such days.
  • The earliest first date in a year was 17 April 2002.
  • The latest last date in a year was 2 October 2019.
  • The longest run inside a single year was 11 days in 2012.
  • 2 years with under 90 percent of days observed are left out of these rankings.

Days per Year

81 years, 767 days
Days at or above 35 C (95 F) per year in Washington, D.C. Days per year in Washington, D.C. with a maximum temperature at or above 35 C (95 F). The line is the decade average. The most was 29 in 2012. Grey bars are years with under 90 percent of days observed, left out of rankings. 01020301942: 31943: 91944: 31945: 31946: 21947: 31948: 71949: 121950: 21951: 31952: 91953: 121954: 121955: 91956: 11957: 101958: 21959: 81960: 11961: 11962: 31963: 51964: 71965: 51966: 121967: 11968: 141969: 71970: 41972: 11973: 91974: 21975: 41976: 31977: 101978: 71979: 21980: 281981: 71982: 31983: 191984: 41985: 91986: 81987: 201988: 241989: 31990: 41991: 271992: 51993: 201994: 101995: 181996: 21997: 181998: 131999: 252001: 42002: 232005: 72006: 82007: 102008: 82009: 52010: 272011: 242012: 292013: 52014: 82015: 82016: 232017: 92018: 62019: 152020: 92021: 62022: 82023: 82024: 202025: 72026: 15194219521962197319831993200620162026
Days per year in Washington, D.C. with a maximum temperature at or above 35 C (95 F). The line is the decade average. The most was 29 in 2012. Grey bars are years with under 90 percent of days observed, left out of rankings.
Days at or above 35 C (95 F) per year in Washington, D.C.
YearDaysDecade average
194235.3
194395.3
194435.3
194535.3
194625.3
194735.3
194875.3
1949125.3
195026.8
195136.8
195296.8
1953126.8
1954126.8
195596.8
195616.8
1957106.8
195826.8
195986.8
196015.6
196115.6
196235.6
196355.6
196475.6
196555.6
1966125.6
196715.6
1968145.6
196975.6
197044.7
197214.7
197394.7
197424.7
197544.7
197634.7
1977104.7
197874.7
197924.7
19802812.5
1981712.5
1982312.5
19831912.5
1984412.5
1985912.5
1986812.5
19872012.5
19882412.5
1989312.5
1990414.2
19912714.2
1992514.2
19932014.2
19941014.2
19951814.2
1996214.2
19971814.2
19981314.2
19992514.2
200149.3
2002239.3
200579.3
200689.3
2007109.3
200889.3
200959.3
20102715.4
20112415.4
20122915.4
2013515.4
2014815.4
2015815.4
20162315.4
2017915.4
2018615.4
20191515.4
2020910.4
2021610.4
2022810.4
2023810.4
20242010.4
2025710.4
20261510.4

Season Span

earliest 17 April, latest 2 October
First to last qualifying date each year in Washington, D.C. For each year, a bar from the first to the last day in Washington, D.C. meeting 35 C (95 F). Long bars mean a long season. 1942: 14 July 1942 to 20 July 19421943: 4 June 1943 to 1 September 19431944: 18 June 1944 to 5 August 19441945: 29 June 1945 to 1 July 19451946: 18 June 1946 to 20 July 19461947: 14 August 1947 to 20 August 19471948: 24 June 1948 to 29 August 19481949: 26 June 1949 to 11 August 19491950: 24 June 1950 to 27 June 19501951: 2 June 1951 to 22 July 19511952: 19 June 1952 to 28 July 19521953: 2 July 1953 to 3 September 19531954: 13 June 1954 to 7 September 19541955: 2 July 1955 to 6 August 19551956: 13 June 1956 to 13 June 19561957: 15 June 1957 to 12 August 19571958: 5 July 1958 to 31 July 19581959: 26 June 1959 to 26 August 19591960: 23 April 1960 to 23 April 19601961: 3 September 1961 to 3 September 19611962: 19 May 1962 to 20 August 19621963: 9 May 1963 to 27 July 19631964: 10 June 1964 to 29 July 19641965: 27 May 1965 to 18 August 19651966: 24 June 1966 to 26 July 19661967: 13 June 1967 to 13 June 19671968: 30 June 1968 to 25 August 19681969: 29 May 1969 to 19 July 19691970: 30 June 1970 to 23 September 19701972: 21 July 1972 to 21 July 19721973: 9 July 1973 to 3 September 19731974: 8 July 1974 to 9 July 19741975: 2 August 1975 to 26 August 19751976: 18 April 1976 to 28 June 19761977: 29 June 1977 to 6 August 19771978: 19 June 1978 to 27 July 19781979: 8 August 1979 to 10 August 19791980: 27 June 1980 to 22 September 19801981: 15 June 1981 to 20 July 19811982: 8 July 1982 to 26 July 19821983: 13 July 1983 to 12 September 19831984: 9 June 1984 to 13 June 19841985: 8 July 1985 to 9 September 19851986: 12 June 1986 to 2 August 19861987: 29 May 1987 to 27 August 19871988: 7 June 1988 to 17 August 19881989: 27 June 1989 to 10 September 19891990: 29 June 1990 to 9 July 19901991: 29 May 1991 to 17 September 19911992: 9 July 1992 to 21 July 19921993: 18 June 1993 to 3 September 19931994: 7 June 1994 to 25 July 19941995: 14 July 1995 to 1 September 19951996: 19 May 1996 to 20 May 19961997: 19 May 1997 to 17 August 19971998: 26 June 1998 to 27 September 19981999: 7 June 1999 to 18 August 19992001: 7 August 2001 to 10 August 20012002: 17 April 2002 to 19 August 20022005: 21 July 2005 to 13 August 20052006: 30 May 2006 to 29 August 20062007: 18 June 2007 to 8 August 20072008: 7 June 2008 to 4 September 20082009: 16 July 2009 to 21 August 20092010: 20 June 2010 to 24 September 20102011: 30 May 2011 to 9 August 20112012: 20 June 2012 to 1 September 20122013: 15 July 2013 to 19 July 20132014: 17 June 2014 to 6 September 20142015: 16 June 2015 to 3 September 20152016: 11 June 2016 to 14 September 20162017: 12 June 2017 to 22 July 20172018: 19 June 2018 to 4 September 20182019: 28 June 2019 to 2 October 20192020: 3 July 2020 to 27 July 20202021: 30 June 2021 to 13 August 20212022: 31 May 2022 to 30 August 20222023: 27 July 2023 to 7 September 20232024: 21 June 2024 to 28 August 20242025: 23 June 2025 to 17 August 20252026: 19 May 2026 to 1 September 202619421953196419761987199820122023JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day in Washington, D.C. meeting 35 C (95 F). Long bars mean a long season.
First to last qualifying date each year in Washington, D.C.
YearFirst dateLast date
19421942-07-141942-07-20
19431943-06-041943-09-01
19441944-06-181944-08-05
19451945-06-291945-07-01
19461946-06-181946-07-20
19471947-08-141947-08-20
19481948-06-241948-08-29
19491949-06-261949-08-11
19501950-06-241950-06-27
19511951-06-021951-07-22
19521952-06-191952-07-28
19531953-07-021953-09-03
19541954-06-131954-09-07
19551955-07-021955-08-06
19561956-06-131956-06-13
19571957-06-151957-08-12
19581958-07-051958-07-31
19591959-06-261959-08-26
19601960-04-231960-04-23
19611961-09-031961-09-03
19621962-05-191962-08-20
19631963-05-091963-07-27
19641964-06-101964-07-29
19651965-05-271965-08-18
19661966-06-241966-07-26
19671967-06-131967-06-13
19681968-06-301968-08-25
19691969-05-291969-07-19
19701970-06-301970-09-23
19721972-07-211972-07-21
19731973-07-091973-09-03
19741974-07-081974-07-09
19751975-08-021975-08-26
19761976-04-181976-06-28
19771977-06-291977-08-06
19781978-06-191978-07-27
19791979-08-081979-08-10
19801980-06-271980-09-22
19811981-06-151981-07-20
19821982-07-081982-07-26
19831983-07-131983-09-12
19841984-06-091984-06-13
19851985-07-081985-09-09
19861986-06-121986-08-02
19871987-05-291987-08-27
19881988-06-071988-08-17
19891989-06-271989-09-10
19901990-06-291990-07-09
19911991-05-291991-09-17
19921992-07-091992-07-21
19931993-06-181993-09-03
19941994-06-071994-07-25
19951995-07-141995-09-01
19961996-05-191996-05-20
19971997-05-191997-08-17
19981998-06-261998-09-27
19991999-06-071999-08-18
20012001-08-072001-08-10
20022002-04-172002-08-19
20052005-07-212005-08-13
20062006-05-302006-08-29
20072007-06-182007-08-08
20082008-06-072008-09-04
20092009-07-162009-08-21
20102010-06-202010-09-24
20112011-05-302011-08-09
20122012-06-202012-09-01
20132013-07-152013-07-19
20142014-06-172014-09-06
20152015-06-162015-09-03
20162016-06-112016-09-14
20172017-06-122017-07-22
20182018-06-192018-09-04
20192019-06-282019-10-02
20202020-07-032020-07-27
20212021-06-302021-08-13
20222022-05-312022-08-30
20232023-07-272023-09-07
20242024-06-212024-08-28
20252025-06-232025-08-17
20262026-05-192026-09-01

Every Year

Days at or above 35 C (95 F) per year in Washington, D.C.
YearDaysFirst dateLast dateLongest streak in yearCoverage
20261519 May 20261 September 20265 daysIncomplete, not ranked
2025723 June 202517 August 20254 daysComplete
20242021 June 202428 August 20247 daysComplete
2023827 July 20237 September 20235 daysComplete
2022831 May 202230 August 20223 daysComplete
2021630 June 202113 August 20213 daysComplete
202093 July 202027 July 20205 daysComplete
20191528 June 20192 October 20194 daysComplete
2018619 June 20184 September 20182 daysComplete
2017912 June 201722 July 20174 daysComplete
20162311 June 201614 September 20168 daysComplete
2015816 June 20153 September 20152 daysComplete
2014817 June 20146 September 20143 daysComplete
2013515 July 201319 July 20135 daysComplete
20122920 June 20121 September 201211 daysComplete
20112430 May 20119 August 20116 daysComplete
20102720 June 201024 September 20104 daysComplete
2009516 July 200921 August 20092 daysComplete
200887 June 20084 September 20084 daysComplete
20071018 June 20078 August 20073 daysComplete
2006830 May 200629 August 20064 daysComplete
2005721 July 200513 August 20052 daysComplete
20022317 April 200219 August 20028 daysComplete
200147 August 200110 August 20014 daysComplete
1999257 June 199918 August 19994 daysComplete
19981326 June 199827 September 19983 daysComplete
19971819 May 199717 August 19977 daysComplete
1996219 May 199620 May 19962 daysComplete
19951814 July 19951 September 19954 daysComplete
1994107 June 199425 July 19944 daysComplete
19932018 June 19933 September 19938 daysComplete
199259 July 199221 July 19922 daysComplete
19912729 May 199117 September 19917 daysComplete
1990429 June 19909 July 19902 daysComplete
1989327 June 198910 September 19891 daysComplete
1988247 June 198817 August 19885 daysComplete
19872029 May 198727 August 19878 daysComplete
1986812 June 19862 August 19863 daysComplete
198598 July 19859 September 19854 daysComplete
198449 June 198413 June 19843 daysComplete
19831913 July 198312 September 19834 daysComplete
198238 July 198226 July 19821 daysComplete
1981715 June 198120 July 19812 daysComplete
19802827 June 198022 September 19807 daysComplete
197928 August 197910 August 19791 daysComplete
1978719 June 197827 July 19783 daysComplete
19771029 June 19776 August 19772 daysComplete
1976318 April 197628 June 19761 daysComplete
197542 August 197526 August 19753 daysComplete
197428 July 19749 July 19742 daysComplete
197399 July 19733 September 19733 daysComplete
1972121 July 197221 July 19721 daysComplete
1970430 June 197023 September 19702 daysComplete
1969729 May 196919 July 19694 daysComplete
19681430 June 196825 August 19683 daysComplete
1967113 June 196713 June 19671 daysComplete
19661224 June 196626 July 19664 daysComplete
1965527 May 196518 August 19652 daysComplete
1964710 June 196429 July 19642 daysComplete
196359 May 196327 July 19632 daysComplete
1962319 May 196220 August 19621 daysComplete
196113 September 19613 September 19611 daysComplete
1960123 April 196023 April 19601 daysComplete
1959826 June 195926 August 19593 daysComplete
195825 July 195831 July 19581 daysComplete
19571015 June 195712 August 19574 daysComplete
1956113 June 195613 June 19561 daysComplete
195592 July 19556 August 19554 daysComplete
19541213 June 19547 September 19544 daysComplete
1953122 July 19533 September 19537 daysComplete
1952919 June 195228 July 19523 daysComplete
195132 June 195122 July 19511 daysComplete
1950224 June 195027 June 19501 daysComplete
19491226 June 194911 August 19496 daysComplete
1948724 June 194829 August 19484 daysComplete
1947314 August 194720 August 19472 daysComplete
1946218 June 194620 July 19461 daysComplete
1945329 June 19451 July 19453 daysComplete
1944318 June 19445 August 19441 daysComplete
194394 June 19431 September 19433 daysComplete
1942314 July 194220 July 19422 daysComplete
Decade averages for Days at or above 35 C (95 F) in Washington, D.C.
DecadeAverage days per yearYears counted
1940s5.38
1950s6.810
1960s5.610
1970s4.79
1980s12.510
1990s14.210
2000s9.37
2010s15.410
2020s9.76

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 at or above 35 C (95 F) in Washington, D.C., 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).