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Built 2026-10-19 (19 October 2026)

Nights at or above 25 C (77 F) in Los Angeles

Los Angeles has had nights with a minimum temperature at or above 25 C (77 F) in 26 years, most in 1984 with 7. Days per year, season span, streaks and every date.

Key Facts for Los Angeles

  • Los Angeles has had nights with a minimum temperature at or above 25 C (77 F) in 26 years, 49 days in all.
  • The most in one year was 7 days in 1984.
  • In 2026, the latest year on file, there were 4 such days.
  • The earliest first date in a year was 1 July 1985.
  • The latest last date in a year was 17 October 1958.
  • The longest run inside a single year was 4 days in 1939.
  • 5 years with under 90 percent of days observed are left out of these rankings.

Days per Year

26 years, 49 days
Nights at or above 25 C (77 F) per year in Los Angeles Days per year in Los Angeles with a minimum temperature at or above 25 C (77 F). The line is the decade average. The most was 7 in 1984. Grey bars are years with under 90 percent of days observed, left out of rankings. 024681913: 11939: 51955: 21958: 11959: 11961: 11963: 31967: 21971: 11972: 21980: 11981: 11983: 21984: 71985: 21988: 21994: 21998: 12010: 22015: 12017: 12018: 12020: 12022: 12024: 12026: 4191319802017
Days per year in Los Angeles with a minimum temperature at or above 25 C (77 F). The line is the decade average. The most was 7 in 1984. Grey bars are years with under 90 percent of days observed, left out of rankings.
Nights at or above 25 C (77 F) per year in Los Angeles
YearDaysDecade average
191311
193955
195521.3
195811.3
195911.3
196112
196332
196722
197111.5
197221.5
198012.5
198112.5
198322.5
198472.5
198522.5
198822.5
199421.5
199811.5
201021.3
201511.3
201711.3
201811.3
202011.8
202211.8
202411.8
202641.8

Season Span

earliest 1 July, latest 17 October
First to last qualifying date each year in Los Angeles For each year, a bar from the first to the last day in Los Angeles meeting 25 C (77 F). Long bars mean a long season. 1913: 17 September 1913 to 17 September 19131939: 18 September 1939 to 23 September 19391955: 1 September 1955 to 2 September 19551958: 17 October 1958 to 17 October 19581959: 11 September 1959 to 11 September 19591961: 15 October 1961 to 15 October 19611963: 26 September 1963 to 28 September 19631967: 30 August 1967 to 1 September 19671971: 13 September 1971 to 13 September 19711972: 29 July 1972 to 30 July 19721980: 30 July 1980 to 30 July 19801981: 27 August 1981 to 27 August 19811983: 16 August 1983 to 17 August 19831984: 15 July 1984 to 19 September 19841985: 1 July 1985 to 2 July 19851988: 4 September 1988 to 5 September 19881994: 13 August 1994 to 15 August 19941998: 1 September 1998 to 1 September 19982010: 27 September 2010 to 28 September 20102015: 10 September 2015 to 10 September 20152017: 2 September 2017 to 2 September 20172018: 7 July 2018 to 7 July 20182020: 6 September 2020 to 6 September 20202022: 4 September 2022 to 4 September 20222024: 9 September 2024 to 9 September 20242026: 27 August 2026 to 5 October 20261913195919711983199420172024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day in Los Angeles meeting 25 C (77 F). Long bars mean a long season.
First to last qualifying date each year in Los Angeles
YearFirst dateLast date
19131913-09-171913-09-17
19391939-09-181939-09-23
19551955-09-011955-09-02
19581958-10-171958-10-17
19591959-09-111959-09-11
19611961-10-151961-10-15
19631963-09-261963-09-28
19671967-08-301967-09-01
19711971-09-131971-09-13
19721972-07-291972-07-30
19801980-07-301980-07-30
19811981-08-271981-08-27
19831983-08-161983-08-17
19841984-07-151984-09-19
19851985-07-011985-07-02
19881988-09-041988-09-05
19941994-08-131994-08-15
19981998-09-011998-09-01
20102010-09-272010-09-28
20152015-09-102015-09-10
20172017-09-022017-09-02
20182018-07-072018-07-07
20202020-09-062020-09-06
20222022-09-042022-09-04
20242024-09-092024-09-09
20262026-08-272026-10-05

Every Year

Nights at or above 25 C (77 F) per year in Los Angeles
YearDaysFirst dateLast dateLongest streak in yearCoverage
2026427 August 20265 October 20262 daysIncomplete, not ranked
202419 September 20249 September 20241 daysComplete
202214 September 20224 September 20221 daysComplete
202016 September 20206 September 20201 daysComplete
201817 July 20187 July 20181 daysComplete
201712 September 20172 September 20171 daysComplete
2015110 September 201510 September 20151 daysComplete
2010227 September 201028 September 20102 daysComplete
199811 September 19981 September 19981 daysComplete
1994213 August 199415 August 19941 daysComplete
198824 September 19885 September 19882 daysComplete
198521 July 19852 July 19852 daysComplete
1984715 July 198419 September 19843 daysComplete
1983216 August 198317 August 19832 daysComplete
1981127 August 198127 August 19811 daysComplete
1980130 July 198030 July 19801 daysComplete
1972229 July 197230 July 19722 daysComplete
1971113 September 197113 September 19711 daysComplete
1967230 August 19671 September 19671 daysComplete
1963326 September 196328 September 19633 daysComplete
1961115 October 196115 October 19611 daysComplete
1959111 September 195911 September 19591 daysComplete
1958117 October 195817 October 19581 daysComplete
195521 September 19552 September 19552 daysComplete
1939518 September 193923 September 19394 daysComplete
1913117 September 191317 September 19131 daysComplete
Decade averages for Nights at or above 25 C (77 F) in Los Angeles
DecadeAverage days per yearYears counted
1910s1.01
1930s5.01
1950s1.33
1960s2.03
1970s1.52
1980s2.56
1990s1.52
2010s1.34
2020s1.03

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 25 C (77 F) in Los Angeles, 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).