Atlanta 1 E Threshold Days by Year (USC00100493)

14 fixed thresholds counted per year at Atlanta 1 E (USC00100493): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Atlanta 1 E Thresholds

Atlanta 1 E: days with a maximum temperature at or above 30 C (86 F) in 24 years, most in 1940 with 78.
Atlanta 1 E: days with a maximum temperature at or below 0 C (32 F) in 24 years, most in 1930 with 61.
Atlanta 1 E: nights with a minimum temperature at or below 0 C (32 F) in 24 years, most in 1935 with 300.
Atlanta 1 E: nights with a minimum temperature at or below -10 C (14 F) in 24 years, most in 1936 with 112.
14 fixed thresholds have at least one qualifying day at Atlanta 1 E.

Days at or above 30 C (86 F)

24 years with a qualifying day

Days per year at Atlanta 1 E with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 78 in 1940.

Days at or above 30 C (86 F) per year at Atlanta 1 E
Year	Days	Decade average
1899	11	11
1900	16	16
1925	20	21.6
1926	26	21.6
1927	10	21.6
1928	20	21.6
1929	32	21.6
1930	23	37
1931	36	37
1932	32	37
1934	47	37
1935	38	37
1936	38	37
1937	51	37
1938	31	37
1940	78	34.4
1941	27	34.4
1943	52	34.4
1948	5	34.4
1949	10	34.4
1950	24	14.5
1951	17	14.5
1952	5	14.5
1953	12	14.5

For each year, a bar from the first to the last day at Atlanta 1 E meeting 30 C (86 F).

First to last qualifying date each year at Atlanta 1 E
Year	First date	Last date
1899	1899-06-17	1899-07-29
1900	1900-06-20	1900-08-01
1925	1925-06-19	1925-08-10
1926	1926-06-07	1926-08-23
1927	1927-07-08	1927-08-09
1928	1928-06-25	1928-09-03
1929	1929-06-28	1929-09-17
1930	1930-06-16	1930-08-24
1931	1931-06-26	1931-09-04
1932	1932-06-23	1932-09-16
1934	1934-06-30	1934-09-10
1935	1935-07-04	1935-09-22
1936	1936-05-26	1936-09-01
1937	1937-06-02	1937-09-16
1938	1938-06-05	1938-09-27
1940	1940-05-10	1940-09-01
1941	1941-07-03	1941-08-16
1943	1943-07-06	1943-09-25
1948	1948-07-22	1948-09-12
1949	1949-07-11	1949-08-05
1950	1950-06-29	1950-09-05
1951	1951-07-13	1951-08-18
1952	1952-07-09	1952-07-31
1953	1953-07-07	1953-08-19

Every Fixed Threshold

Fixed thresholds at Atlanta 1 E
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	24	78	1940	12
35 C (95 F): Days	12	15	1940	7
90 F (32.2 C): Days	22	47	1940	1
100 F (37.8 C): Days	2	1	1931	1
0 C (32 F): Ice days (max	24	61	1930	17
0 C (32 F): Frost days (min	24	300	1935	186
-10 C (14 F): Days with min	24	112	1936	43
-20 C (-4 F): Days with min	24	34	1932	2
-30 C (-22 F): Days with min	9	6	1937	1
10 mm (0.39 in): Days with 10 mm or more rain	17	34	1950	26
25 mm (0.98 in): Days with 25 mm or more rain	16	7	1951	3
50 mm (1.97 in): Days with 50 mm or more rain	4	1	1943	1
10 cm (3.9 in): Days with 10 cm or more snowfall	7	37	1951	15
25 cm (9.8 in): Days with 25 cm or more snowfall	6	12	1951	3

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1899.

Download the Data

Data for Atlanta 1 E threshold days 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.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Atlanta 1 E Threshold Days by Year (USC00100493)

Key Facts for Atlanta 1 E Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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