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Built 2026-10-19 (19 October 2026)

Days at or above 100 F (37.8 C) in Atlanta

Atlanta has had days with a maximum temperature at or above 100 F (37.8 C) in 22 years, most in 1980 with 9. Days per year, season span, streaks and every date.

Key Facts for Atlanta

  • Atlanta has had days with a maximum temperature at or above 100 F (37.8 C) in 22 years, 74 days in all.
  • The most in one year was 9 days in 1980.
  • In 2025, the latest year on file, there were 1 such days.
  • The earliest first date in a year was 6 June 1943.
  • The latest last date in a year was 27 August 1943.
  • The longest run inside a single year was 4 days in 1980.
  • 1 year with under 90 percent of days observed is left out of these rankings.

Days per Year

22 years, 74 days
Days at or above 100 F (37.8 C) per year in Atlanta Days per year in Atlanta with a maximum temperature at or above 100 F (37.8 C). The line is the decade average. The most was 9 in 1980. Grey bars are years with under 90 percent of days observed, left out of rankings. 0358101930: 41931: 11935: 11936: 31939: 11943: 31944: 21947: 11952: 71954: 61980: 91983: 21986: 41993: 71995: 42000: 22007: 92012: 42016: 12019: 12024: 12025: 1193019802024
Days per year in Atlanta with a maximum temperature at or above 100 F (37.8 C). The line is the decade average. The most was 9 in 1980. Grey bars are years with under 90 percent of days observed, left out of rankings.
Days at or above 100 F (37.8 C) per year in Atlanta
YearDaysDecade average
193042
193112
193512
193632
193912
194332
194422
194712
195276.5
195466.5
198095
198325
198645
199375.5
199545.5
200025.5
200795.5
201242
201612
201912
202411
202511

Season Span

earliest 6 June, latest 27 August
First to last qualifying date each year in Atlanta For each year, a bar from the first to the last day in Atlanta meeting 100 F (37.8 C). Long bars mean a long season. 1930: 9 July 1930 to 13 July 19301931: 29 June 1931 to 29 June 19311935: 7 August 1935 to 7 August 19351936: 17 June 1936 to 10 July 19361939: 19 July 1939 to 19 July 19391943: 6 June 1943 to 27 August 19431944: 18 June 1944 to 17 July 19441947: 4 August 1947 to 4 August 19471952: 27 June 1952 to 29 July 19521954: 27 June 1954 to 17 August 19541980: 11 July 1980 to 9 August 19801983: 21 August 1983 to 22 August 19831986: 8 July 1986 to 21 July 19861993: 18 July 1993 to 29 July 19931995: 15 July 1995 to 18 August 19952000: 19 July 2000 to 18 August 20002007: 8 August 2007 to 22 August 20072012: 29 June 2012 to 5 July 20122016: 25 June 2016 to 25 June 20162019: 13 August 2019 to 13 August 20192024: 26 June 2024 to 26 June 20242025: 29 July 2025 to 29 July 202519301936194419541986200020162025JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day in Atlanta meeting 100 F (37.8 C). Long bars mean a long season.
First to last qualifying date each year in Atlanta
YearFirst dateLast date
19301930-07-091930-07-13
19311931-06-291931-06-29
19351935-08-071935-08-07
19361936-06-171936-07-10
19391939-07-191939-07-19
19431943-06-061943-08-27
19441944-06-181944-07-17
19471947-08-041947-08-04
19521952-06-271952-07-29
19541954-06-271954-08-17
19801980-07-111980-08-09
19831983-08-211983-08-22
19861986-07-081986-07-21
19931993-07-181993-07-29
19951995-07-151995-08-18
20002000-07-192000-08-18
20072007-08-082007-08-22
20122012-06-292012-07-05
20162016-06-252016-06-25
20192019-08-132019-08-13
20242024-06-262024-06-26
20252025-07-292025-07-29

Every Year

Days at or above 100 F (37.8 C) per year in Atlanta
YearDaysFirst dateLast dateLongest streak in yearCoverage
2025129 July 202529 July 20251 daysComplete
2024126 June 202426 June 20241 daysComplete
2019113 August 201913 August 20191 daysComplete
2016125 June 201625 June 20161 daysComplete
2012429 June 20125 July 20123 daysComplete
200798 August 200722 August 20074 daysComplete
2000219 July 200018 August 20001 daysComplete
1995415 July 199518 August 19951 daysComplete
1993718 July 199329 July 19933 daysComplete
198648 July 198621 July 19863 daysComplete
1983221 August 198322 August 19832 daysComplete
1980911 July 19809 August 19804 daysComplete
1954627 June 195417 August 19542 daysComplete
1952727 June 195229 July 19523 daysComplete
194714 August 19474 August 19471 daysComplete
1944218 June 194417 July 19441 daysComplete
194336 June 194327 August 19432 daysComplete
1939119 July 193919 July 19391 daysComplete
1936317 June 193610 July 19361 daysComplete
193517 August 19357 August 19351 daysComplete
1931129 June 193129 June 19311 daysComplete
193049 July 193013 July 19302 daysComplete
Decade averages for Days at or above 100 F (37.8 C) in Atlanta
DecadeAverage days per yearYears counted
1930s2.05
1940s2.03
1950s6.52
1980s5.03
1990s5.52
2000s5.52
2010s2.03
2020s1.02

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 100 F (37.8 C) in Atlanta, 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).