Weather Records on 21 September 1949

298 weather records were set or tied worldwide on 21 September 1949. Highest significance: Cidra 1 E, PR.

Key Facts for 21 September 1949

On 21 September 1949, 298 weather records were set or tied at long-record stations worldwide.
76 were record highs and 57 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 10 monthly and 287 daily.
Cidra 1 E set a daily record precipitation of 125.5 mm (4.9 in) on 21 September 1949.
Across 155 earlier years (1805 to 2026) the same calendar date averaged 452 records.

Record Map

298 stations

298 station records on 21 September 1949 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 September 1949: highest significance records shown on the map
Station	Country	Type	Value	Significance
Cidra 1 E	Puerto Rico [United States]	Record daily precipitation	125.5 mm (4.9 in)	59 of 100 (Notable)
Jamkhandi	India	Record daily precipitation	105.4 mm (4.1 in)	55 of 100 (Notable)
Kavali	India	Record daily precipitation	127.5 mm (5.0 in)	52 of 100 (Notable)
Raichur	India	Record daily precipitation	112.0 mm (4.4 in)	52 of 100 (Notable)
Mudhol	India	Record daily precipitation	102.4 mm (4.0 in)	50 of 100 (Notable)
Isakapally	India	Record daily precipitation	111.8 mm (4.4 in)	49 of 100 (Notable)
Nandikottur	India	Record daily precipitation	101.6 mm (4.0 in)	48 of 100 (Notable)
Cumbam	India	Record daily precipitation	88.9 mm (3.5 in)	47 of 100 (Notable)
Whitehead	Canada	Record daily precipitation	80.0 mm (3.1 in)	46 of 100 (Notable)
Kudal	India	Record daily precipitation	95.3 mm (3.8 in)	46 of 100 (Notable)
Krishnapatnam	India	Record daily precipitation	72.6 mm (2.9 in)	45 of 100 (Notable)
Pakala	India	Record daily precipitation	138.4 mm (5.4 in)	44 of 100 (Notable)
Ongole	India	Record daily precipitation	104.1 mm (4.1 in)	44 of 100 (Notable)
Ratnagiri	India	Record daily precipitation	106.7 mm (4.2 in)	44 of 100 (Notable)
Ponnur(Ponnuru)	India	Record daily precipitation	142.7 mm (5.6 in)	41 of 100 (Notable)
Avanigadda	India	Record daily precipitation	71.9 mm (2.8 in)	41 of 100 (Notable)
Porto Real Do Colegio	Brazil	Record daily precipitation	30.2 mm (1.2 in)	40 of 100 (Notable)
Nellore	India	Record daily precipitation	93.5 mm (3.7 in)	39 of 100 (Notable)
Narasannapeta	India	Record daily precipitation	105.4 mm (4.1 in)	39 of 100 (Notable)
Vengurla	India	Record daily precipitation	95.8 mm (3.8 in)	39 of 100 (Notable)
Guhagar	India	Record daily precipitation	138.4 mm (5.4 in)	39 of 100 (Notable)
Khed	India	Record daily precipitation	136.1 mm (5.4 in)	38 of 100 (Notable)
Jaisalmer	India	Record daily precipitation	26.9 mm (1.1 in)	37 of 100 (Notable)
Ketchikan AP	United States	Record daily precipitation	121.4 mm (4.8 in)	37 of 100 (Notable)
Peddapuram	India	Record daily precipitation	75.4 mm (3.0 in)	36 of 100 (Notable)
Taldra	Australia	Record daily precipitation	27.9 mm (1.1 in)	35 of 100 (Notable)
Kanuparthi	India	Record daily precipitation	81.3 mm (3.2 in)	35 of 100 (Notable)
Chinaganjam	India	Record daily precipitation	120.4 mm (4.7 in)	34 of 100 (Routine)
Stewart	Canada	Record daily precipitation	91.4 mm (3.6 in)	33 of 100 (Routine)
Yadki	India	Record daily precipitation	108.2 mm (4.3 in)	33 of 100 (Routine)
Bidar	India	Record daily precipitation	203.2 mm (8.0 in)	33 of 100 (Routine)
Hungund	India	Record daily precipitation	64.5 mm (2.5 in)	33 of 100 (Routine)
Fogo	Canada	Record low maximum temperature	7.2 C (45.0 F)	32 of 100 (Routine)
Fogo	Canada	Record daily precipitation	45.2 mm (1.8 in)	32 of 100 (Routine)
Udayagiri	India	Record daily precipitation	67.8 mm (2.7 in)	32 of 100 (Routine)
Giddalore	India	Record daily precipitation	69.1 mm (2.7 in)	31 of 100 (Routine)
Biccavole	India	Record daily precipitation	101.6 mm (4.0 in)	29 of 100 (Routine)
Guayama 1SW	Puerto Rico [United States]	Record daily precipitation	83.1 mm (3.3 in)	29 of 100 (Routine)
Maunabo	Puerto Rico [United States]	Record daily precipitation	58.9 mm (2.3 in)	29 of 100 (Routine)
Muddebihal	India	Record daily precipitation	77.5 mm (3.1 in)	28 of 100 (Routine)
Sawantwadi	India	Record daily precipitation	62.2 mm (2.4 in)	28 of 100 (Routine)
Mayaguez City	Puerto Rico [United States]	Record low maximum temperature	26.7 C (80.1 F)	28 of 100 (Routine)
Arlington	United States	Record low minimum temperature	0.6 C (33.1 F)	28 of 100 (Routine)
Adoni	India	Record daily precipitation	108.2 mm (4.3 in)	27 of 100 (Routine)
Mahbubnagar	India	Record daily precipitation	82.6 mm (3.3 in)	27 of 100 (Routine)
Vaduj	India	Record daily precipitation	80.0 mm (3.1 in)	27 of 100 (Routine)
Ram/Udayagiri	India	Record daily precipitation	106.7 mm (4.2 in)	27 of 100 (Routine)
Machilipatnam	India	Record daily precipitation	50.3 mm (2.0 in)	26 of 100 (Routine)
Dhone	India	Record daily precipitation	79.0 mm (3.1 in)	26 of 100 (Routine)
Kanigiri	India	Record daily precipitation	85.1 mm (3.4 in)	26 of 100 (Routine)
Markapur	India	Record daily precipitation	98.3 mm (3.9 in)	26 of 100 (Routine)
Ilkal	India	Record daily precipitation	51.3 mm (2.0 in)	26 of 100 (Routine)
Bagewadi	India	Record daily precipitation	80.0 mm (3.1 in)	26 of 100 (Routine)
Pottangi	India	Record daily precipitation	108.0 mm (4.3 in)	26 of 100 (Routine)
Alton 1 W	United States	Record daily precipitation	30.5 mm (1.2 in)	26 of 100 (Routine)
Nossa Senhora Das Dores	Brazil	Record daily precipitation	25.2 mm (1.0 in)	25 of 100 (Routine)
Kurnool	India	Record daily precipitation	118.6 mm (4.7 in)	25 of 100 (Routine)
Alur	India	Record daily precipitation	77.5 mm (3.1 in)	25 of 100 (Routine)
Madha	India	Record daily precipitation	94.5 mm (3.7 in)	25 of 100 (Routine)
Atmakur	India	Record daily precipitation	74.4 mm (2.9 in)	24 of 100 (Routine)

Counts by Type and Timescale

298 records

Records set or tied on 21 September 1949 by type: Highest daily maximum 59, Lowest daily maximum 16, Highest daily minimum 17, Lowest daily minimum 41, Heaviest daily rainfall 165.

Records on 21 September 1949 by type
Record type	Records
Highest daily maximum	59
Lowest daily maximum	16
Highest daily minimum	17
Lowest daily minimum	41
Heaviest daily rainfall	165
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 September 1949 by timescale: all-time 1, monthly 10, daily 287.

How Much Records Were Beaten By

243 broken records

Margins by which the 243 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 112.5. Ties are not counted.

Top 20 by Significance

21 September 1949

Top 20 records on 21 September 1949 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 September 1949	Cidra 1 E, PR	daily rain	125.5 mm (4.9 in)	102.6 mm (4.0 in)	48 years	59 of 100 (Notable)
21 September 1949	Jamkhandi, IN	daily rain	105.4 mm (4.1 in)	86.6 mm (3.4 in)	36 years	55 of 100 (Notable)
21 September 1949	Kavali, IN	daily rain	127.5 mm (5.0 in)	94.0 mm (3.7 in)	28 years	52 of 100 (Notable)
21 September 1949	Raichur, IN	daily rain	112.0 mm (4.4 in)	61.7 mm (2.4 in)	38 years	52 of 100 (Notable)
21 September 1949	Mudhol, IN	daily rain	102.4 mm (4.0 in)	71.4 mm (2.8 in)	24 years	50 of 100 (Notable)
21 September 1949	Isakapally, IN	daily rain	111.8 mm (4.4 in)	70.4 mm (2.8 in)	28 years	49 of 100 (Notable)
21 September 1949	Nandikottur, IN	daily rain	101.6 mm (4.0 in)	55.9 mm (2.2 in)	40 years	48 of 100 (Notable)
21 September 1949	Cumbam, IN	daily rain	88.9 mm (3.5 in)	53.6 mm (2.1 in)	36 years	47 of 100 (Notable)
21 September 1949	Whitehead, CA	daily rain	80.0 mm (3.1 in)	35.8 mm (1.4 in)	46 years	46 of 100 (Notable)
21 September 1949	Kudal, IN	daily rain	95.3 mm (3.8 in)	62.0 mm (2.4 in)	32 years	46 of 100 (Notable)
21 September 1949	Krishnapatnam, IN	daily rain	72.6 mm (2.9 in)	56.1 mm (2.2 in)	43 years	45 of 100 (Notable)
21 September 1949	Pakala, IN	daily rain	138.4 mm (5.4 in)	112.5 mm (4.4 in)	2 years	44 of 100 (Notable)
21 September 1949	Ongole, IN	daily rain	104.1 mm (4.1 in)	72.3 mm (2.8 in)	2 years	44 of 100 (Notable)
21 September 1949	Ratnagiri, IN	daily rain	106.7 mm (4.2 in)	68.1 mm (2.7 in)	40 years	44 of 100 (Notable)
21 September 1949	Ponnur(Ponnuru), IN	monthly rain	142.7 mm (5.6 in)	28.4 mm (1.1 in)	38 years	41 of 100 (Notable)
21 September 1949	Avanigadda, IN	daily rain	71.9 mm (2.8 in)	51.6 mm (2.0 in)	28 years	41 of 100 (Notable)
21 September 1949	Porto Real Do Colegio, BR	daily rain	30.2 mm (1.2 in)	22.3 mm (0.9 in)	3 years	40 of 100 (Notable)
21 September 1949	Nellore, IN	daily rain	93.5 mm (3.7 in)	42.7 mm (1.7 in)	43 years	39 of 100 (Notable)
21 September 1949	Narasannapeta, IN	daily rain	105.4 mm (4.1 in)	54.6 mm (2.1 in)	48 years	39 of 100 (Notable)
21 September 1949	Vengurla, IN	daily rain	95.8 mm (3.8 in)	56.4 mm (2.2 in)	32 years	39 of 100 (Notable)

Significance is a score from 0 to 100 combining margin, the age of the old record and the length of the station's record. How it is computed.

The Same Date in Other Years

1805 to 1949

Records set or tied on this calendar date in each year from 1805 to 1949. 1949 had 298 records.

Counts for years before the ledger starts come from the same station rules.

Records on 09-21 in each year
Year	Records
1805	1
1812	1
1825	2
1840	1
1841	1
1842	1
1848	1
1854	1
1856	2
1868	1
1872	2
1873	1
1877	1
1878	1
1881	1
1882	1
1884	1
1886	1
1888	2
1889	1
1891	10
1892	1
1893	10
1894	2
1895	3
1896	2
1897	6
1898	6
1899	3
1900	2
1901	5
1902	5
1903	8
1904	20
1905	12
1906	17
1907	10
1908	17
1909	10
1910	8
1911	18
1912	26
1913	37
1914	29
1915	34
1916	48
1917	28
1918	43
1919	54
1920	29
1921	64
1922	35
1923	232
1924	291
1925	278
1926	178
1927	165
1928	81
1929	232
1930	82
1931	681
1932	242
1933	193
1934	492
1935	199
1936	329
1937	487
1938	508
1939	308
1940	908
1941	416
1942	291
1943	407
1944	413
1945	507
1946	176
1947	534
1948	301
1949	298
1950	334
1951	241
1952	430
1953	382
1954	453
1955	752
1956	1,100
1957	366
1958	588
1959	513
1960	418
1961	441
1962	1,085
1963	306
1964	374
1965	1,088
1966	565
1967	577
1968	790
1969	593
1970	708
1971	645
1972	599
1973	421
1974	652
1975	528
1976	694
1977	918
1978	818
1979	736
1980	990
1981	696
1982	1,484
1983	2,207
1984	707
1985	796
1986	671
1987	965
1988	557
1989	1,002
1990	716
1991	1,021
1992	752
1993	911
1994	713
1995	2,002
1996	1,233
1997	1,112
1998	1,481
1999	1,025
2000	884
2001	718
2002	696
2003	959
2004	888
2005	1,143
2006	920
2007	742
2008	740
2009	715
2010	1,290
2011	542
2012	595
2013	769
2014	716
2015	565
2016	989
2017	1,178
2018	1,051
2019	833
2020	580
2021	465
2022	1,049
2023	783
2024	470
2025	588
2026	469

Download the Data

Data for records on 1949-09-21: CSV or JSON. Field meanings are on the data page.

Sources: 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)) Made with Natural Earth. Public domain map data. Borders are Natural Earth's de facto depiction. Data as of 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 20	181
20 to 40	37
40 to 60	12
60 to 80	9
80 to 100	2
100 to 120	2