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Built 2026-10-19 (19 October 2026)

Days with 100 mm (3.94 in) or more of precipitation in Atlanta

Atlanta has had days with 100 mm (3.94 in) or more of precipitation in 19 years, most in 1948 with 2. Days per year, season span, streaks and every date.

Key Facts for Atlanta

  • Atlanta has had days with 100 mm (3.94 in) or more of precipitation in 19 years, 23 days in all.
  • The most in one year was 2 days in 1948.
  • In 2024, the latest year on file, there were 1 such days.
  • The earliest first date in a year was 16 March 1990.
  • The latest last date in a year was 12 November 1935.
  • 1 year with under 90 percent of days observed is left out of these rankings.

Days per Year

19 years, 23 days
Days with 100 mm (3.94 in) or more of precipitation per year in Atlanta Days per year in Atlanta with 100 mm (3.94 in) or more of precipitation. The line is the decade average. The most was 2 in 1948. Grey bars are years with under 90 percent of days observed, left out of rankings. 011221935: 11936: 11940: 11948: 21956: 11969: 11970: 11979: 11989: 21990: 11995: 12004: 22005: 22009: 12013: 12017: 12018: 12020: 12024: 119351995
Days per year in Atlanta with 100 mm (3.94 in) or more of precipitation. The line is the decade average. The most was 2 in 1948. Grey bars are years with under 90 percent of days observed, left out of rankings.
Days with 100 mm (3.94 in) or more of precipitation per year in Atlanta
YearDaysDecade average
193511
193611
194011.5
194821.5
195611
196911
197011
197911
198922
199011
199511
200421.7
200521.7
200911.7
201311
201711
201811
202011
202411

Season Span

earliest 16 March, latest 12 November
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 mm (3.94 in). Long bars mean a long season. 1935: 12 November 1935 to 12 November 19351936: 29 September 1936 to 29 September 19361940: 12 August 1940 to 12 August 19401948: 29 May 1948 to 10 July 19481956: 25 September 1956 to 25 September 19561969: 8 May 1969 to 8 May 19691970: 19 March 1970 to 19 March 19701979: 13 April 1979 to 13 April 19791989: 25 September 1989 to 30 September 19891990: 16 March 1990 to 16 March 19901995: 4 October 1995 to 4 October 19952004: 16 September 2004 to 27 September 20042005: 6 July 2005 to 11 July 20052009: 10 November 2009 to 10 November 20092013: 5 June 2013 to 5 June 20132017: 5 April 2017 to 5 April 20172018: 23 April 2018 to 23 April 20182020: 10 October 2020 to 10 October 20202024: 26 September 2024 to 26 September 20241935194819701990200520172024JanFebMarAprMayJunJulAugSepOctNovDec
For each year, a bar from the first to the last day in Atlanta meeting 100 mm (3.94 in). Long bars mean a long season.
First to last qualifying date each year in Atlanta
YearFirst dateLast date
19351935-11-121935-11-12
19361936-09-291936-09-29
19401940-08-121940-08-12
19481948-05-291948-07-10
19561956-09-251956-09-25
19691969-05-081969-05-08
19701970-03-191970-03-19
19791979-04-131979-04-13
19891989-09-251989-09-30
19901990-03-161990-03-16
19951995-10-041995-10-04
20042004-09-162004-09-27
20052005-07-062005-07-11
20092009-11-102009-11-10
20132013-06-052013-06-05
20172017-04-052017-04-05
20182018-04-232018-04-23
20202020-10-102020-10-10
20242024-09-262024-09-26

Every Year

Days with 100 mm (3.94 in) or more of precipitation per year in Atlanta
YearDaysFirst dateLast dateLongest streak in yearCoverage
2024126 September 202426 September 20241 daysComplete
2020110 October 202010 October 20201 daysComplete
2018123 April 201823 April 20181 daysComplete
201715 April 20175 April 20171 daysComplete
201315 June 20135 June 20131 daysComplete
2009110 November 200910 November 20091 daysComplete
200526 July 200511 July 20051 daysComplete
2004216 September 200427 September 20041 daysComplete
199514 October 19954 October 19951 daysComplete
1990116 March 199016 March 19901 daysComplete
1989225 September 198930 September 19891 daysComplete
1979113 April 197913 April 19791 daysComplete
1970119 March 197019 March 19701 daysComplete
196918 May 19698 May 19691 daysComplete
1956125 September 195625 September 19561 daysComplete
1948229 May 194810 July 19481 daysComplete
1940112 August 194012 August 19401 daysComplete
1936129 September 193629 September 19361 daysComplete
1935112 November 193512 November 19351 daysComplete
Decade averages for Days with 100 mm (3.94 in) or more of precipitation in Atlanta
DecadeAverage days per yearYears counted
1930s1.02
1940s1.52
1950s1.01
1960s1.01
1970s1.02
1980s2.01
1990s1.02
2000s1.73
2010s1.03
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 with 100 mm (3.94 in) or more of precipitation 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).