Weather Records on 17 May 1948

412 weather records were set or tied worldwide on 17 May 1948. Highest significance: Leslie Manor (Boolarra), AU.

Key Facts for 17 May 1948

On 17 May 1948, 412 weather records were set or tied at long-record stations worldwide.
247 were record highs and 20 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 5 monthly and 407 daily.
Leslie Manor (Boolarra) set a daily record precipitation of 26.2 mm (1.0 in) on 17 May 1948.
Across 167 earlier years (1802 to 2026) the same calendar date averaged 434 records.

Record Map

412 stations

412 station records on 17 May 1948 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 May 1948: highest significance records shown on the map
Station	Country	Type	Value	Significance
Leslie Manor (Boolarra)	Australia	Record daily precipitation	26.2 mm (1.0 in)	56 of 100 (Notable)
Rosedale	Australia	Record daily precipitation	38.9 mm (1.5 in)	52 of 100 (Notable)
Salisbury	United States	Record daily precipitation	86.4 mm (3.4 in)	52 of 100 (Notable)
Nayagarh	India	Record daily precipitation	54.6 mm (2.1 in)	51 of 100 (Notable)
Potkabari	India	Record daily precipitation	86.1 mm (3.4 in)	45 of 100 (Notable)
Eastport	United States	Record daily precipitation	30.2 mm (1.2 in)	45 of 100 (Notable)
Jhb-Norwood	South Africa	Record daily precipitation	40.6 mm (1.6 in)	42 of 100 (Notable)
Red Bluff Muni AP	United States	Record daily precipitation	28.2 mm (1.1 in)	42 of 100 (Notable)
Fredericton Unb	Canada	Record daily precipitation	31.5 mm (1.2 in)	41 of 100 (Notable)
Beech Forest	Australia	Record daily precipitation	54.9 mm (2.2 in)	36 of 100 (Notable)
Timovskoe	Russia	Record high minimum temperature	7.1 C (44.8 F)	36 of 100 (Notable)
Timboon	Australia	Record daily precipitation	30.5 mm (1.2 in)	34 of 100 (Routine)
Traralgon	Australia	Record daily precipitation	34.8 mm (1.4 in)	33 of 100 (Routine)
Solomons	United States	Record daily precipitation	30.5 mm (1.2 in)	32 of 100 (Routine)
Chillicothe	United States	Record daily precipitation	42.7 mm (1.7 in)	31 of 100 (Routine)
Nordby (Fano)	Denmark	Record high maximum temperature	29.0 C (84.2 F)	30 of 100 (Routine)
Lake Konomoc	United States	Record daily precipitation	71.1 mm (2.8 in)	30 of 100 (Routine)
Grace	United States	Record high minimum temperature	15.6 C (60.1 F)	30 of 100 (Routine)
Paris	United States	Record daily precipitation	70.4 mm (2.8 in)	30 of 100 (Routine)
Nelsdrift	South Africa	Record daily precipitation	34.3 mm (1.4 in)	29 of 100 (Routine)
Millington 1 SE	United States	Record daily precipitation	29.0 mm (1.1 in)	29 of 100 (Routine)
Timovskoe	Russia	Record high maximum temperature	27.9 C (82.2 F)	28 of 100 (Routine)
Stornoway Airport	United Kingdom	Record high maximum temperature	21.7 C (71.1 F)	27 of 100 (Routine)
New Iberia AP - Acadiana Rgnl	United States	Record high maximum temperature	35.0 C (95.0 F)	26 of 100 (Routine)
Fruitland	United States	Record high maximum temperature	33.3 C (91.9 F)	26 of 100 (Routine)
Atlantic City Marina	United States	Record daily precipitation	27.2 mm (1.1 in)	26 of 100 (Routine)
Fredericton Cda	Canada	Record daily precipitation	27.2 mm (1.1 in)	25 of 100 (Routine)
Aleksandrovsk-Sahalinskij	Russia	Record high maximum temperature	23.8 C (74.8 F)	25 of 100 (Routine)
Brisbane Regional Office	Australia	Record low maximum temperature	20.4 C (68.7 F)	24 of 100 (Routine)
Fall River	United States	Record daily precipitation	49.0 mm (1.9 in)	24 of 100 (Routine)
Brownwood 2NE	United States	Record high minimum temperature	22.2 C (72.0 F)	24 of 100 (Routine)
Walgett Council Depot	Australia	Record low maximum temperature	16.1 C (61.0 F)	23 of 100 (Routine)
Algonquin Park	Canada	Record daily precipitation	34.5 mm (1.4 in)	23 of 100 (Routine)
Paisley	United Kingdom	Record high maximum temperature	26.1 C (79.0 F)	23 of 100 (Routine)
Livingston	United States	Record daily precipitation	33.0 mm (1.3 in)	23 of 100 (Routine)
Idaho Springs	United States	Record high maximum temperature	25.6 C (78.1 F)	23 of 100 (Routine)
New London	United States	Record high minimum temperature	18.9 C (66.0 F)	23 of 100 (Routine)
Bay Saint Louis	United States	Record high maximum temperature	33.9 C (93.0 F)	23 of 100 (Routine)
Butte Bert Mooney AP	United States	Record high maximum temperature	26.7 C (80.1 F)	23 of 100 (Routine)
Karlshamn	Sweden	Record high minimum temperature	12.5 C (54.5 F)	22 of 100 (Routine)
Biloxi	United States	Record high maximum temperature	32.8 C (91.0 F)	22 of 100 (Routine)
Hattiesburg 5SW	United States	Record high maximum temperature	34.4 C (93.9 F)	22 of 100 (Routine)
Wandering Comparison	Australia	Record high maximum temperature	25.6 C (78.1 F)	21 of 100 (Routine)
Bathurst Gaol	Australia	Record low maximum temperature	9.4 C (48.9 F)	21 of 100 (Routine)
Walhalla	Australia	Record daily precipitation	40.9 mm (1.6 in)	21 of 100 (Routine)
Golden A	Canada	Record high minimum temperature	9.4 C (48.9 F)	21 of 100 (Routine)
Huntsville	Canada	Record daily precipitation	26.9 mm (1.1 in)	21 of 100 (Routine)
Saint Leo	United States	Record high minimum temperature	22.2 C (72.0 F)	21 of 100 (Routine)
Adel	United States	Record high maximum temperature	26.7 C (80.1 F)	21 of 100 (Routine)
Canyon Ferry	United States	Record high maximum temperature	29.4 C (84.9 F)	21 of 100 (Routine)
Glasgow #2	United States	Record high maximum temperature	33.3 C (91.9 F)	21 of 100 (Routine)
Warwick	United States	Record daily precipitation	25.4 mm (1.0 in)	21 of 100 (Routine)
Sitka Magnetic Obsy	United States	Record high minimum temperature	8.9 C (48.0 F)	21 of 100 (Routine)
Pomborneit	Australia	Record daily precipitation	23.9 mm (0.9 in)	20 of 100 (Routine)
Mortlake	Australia	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Meredith	Australia	Record daily precipitation	23.9 mm (0.9 in)	20 of 100 (Routine)
Jhb-Vrededorp	South Africa	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Heidelberg I	South Africa	Record daily precipitation	20.1 mm (0.8 in)	20 of 100 (Routine)
Ogies (Pol)	South Africa	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Bronkhorstspruit (Mun)	South Africa	Record daily precipitation	16.3 mm (0.6 in)	20 of 100 (Routine)

Counts by Type and Timescale

412 records

Records set or tied on 17 May 1948 by type: Highest daily maximum 153, Lowest daily maximum 14, Highest daily minimum 94, Lowest daily minimum 6, Heaviest daily rainfall 145.

Records on 17 May 1948 by type
Record type	Records
Highest daily maximum	153
Lowest daily maximum	14
Highest daily minimum	94
Lowest daily minimum	6
Heaviest daily rainfall	145
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 17 May 1948 by timescale: all-time 0, monthly 5, daily 407.

How Much Records Were Beaten By

324 broken records

Margins by which the 324 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 61.2. Ties are not counted.

Top 20 by Significance

17 May 1948

Top 20 records on 17 May 1948 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 May 1948	Leslie Manor (Boolarra), AU	daily rain	26.2 mm (1.0 in)	16.0 mm (0.6 in)	48 years	56 of 100 (Notable)
17 May 1948	Rosedale, AU	daily rain	38.9 mm (1.5 in)	21.1 mm (0.8 in)	55 years	52 of 100 (Notable)
17 May 1948	Salisbury, US	monthly rain	86.4 mm (3.4 in)	30.0 mm (1.2 in)	29 years	52 of 100 (Notable)
17 May 1948	Nayagarh, IN	daily rain	54.6 mm (2.1 in)	41.9 mm (1.6 in)	41 years	51 of 100 (Notable)
17 May 1948	Potkabari, IN	daily rain	86.1 mm (3.4 in)	61.2 mm (2.4 in)	25 years	45 of 100 (Notable)
17 May 1948	Eastport, US	daily rain	30.2 mm (1.2 in)	17.0 mm (0.7 in)	54 years	45 of 100 (Notable)
17 May 1948	Jhb-Norwood, ZA	daily rain	40.6 mm (1.6 in)	35.3 mm (1.4 in)	12 years	42 of 100 (Notable)
17 May 1948	Red Bluff Muni AP, US	daily rain	28.2 mm (1.1 in)	18.5 mm (0.7 in)	27 years	42 of 100 (Notable)
17 May 1948	Fredericton Unb, CA	daily rain	31.5 mm (1.2 in)	10.4 mm (0.4 in)	73 years	41 of 100 (Notable)
17 May 1948	Beech Forest, AU	daily rain	54.9 mm (2.2 in)	17.3 mm (0.7 in)	55 years	36 of 100 (Notable)
17 May 1948	Timovskoe, RU	daily high min	7.1 C (44.8 F)	3.9 C (7.0 F)	59 years	36 of 100 (Notable)
17 May 1948	Timboon, AU	daily rain	30.5 mm (1.2 in)	15.8 mm (0.6 in)	28 years	34 of 100 (Routine)
17 May 1948	Traralgon, AU	daily rain	34.8 mm (1.4 in)	14.5 mm (0.6 in)	28 years	33 of 100 (Routine)
17 May 1948	Solomons, US	daily rain	30.5 mm (1.2 in)	15.5 mm (0.6 in)	35 years	32 of 100 (Routine)
17 May 1948	Chillicothe, US	daily rain	42.7 mm (1.7 in)	27.5 mm (1.1 in)	34 years	31 of 100 (Routine)
17 May 1948	Nordby (Fano), DK	daily high max	29.0 C (84.2 F)	3.5 C (6.3 F)	50 years	30 of 100 (Routine)
17 May 1948	Lake Konomoc, US	daily rain	71.1 mm (2.8 in)	19.0 mm (0.7 in)	32 years	30 of 100 (Routine)
17 May 1948	Grace, US	daily high min	15.6 C (60.1 F)	6.7 C (12.1 F)	22 years	30 of 100 (Routine)
17 May 1948	Paris, US	daily rain	70.4 mm (2.8 in)	24.7 mm (1.0 in)	38 years	30 of 100 (Routine)
17 May 1948	Nelsdrift, ZA	daily rain	34.3 mm (1.4 in)	17.5 mm (0.7 in)	12 years	29 of 100 (Routine)

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

1802 to 1948

Records set or tied on this calendar date in each year from 1802 to 1948. 1948 had 412 records.

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

Records on 05-17 in each year
Year	Records
1802	2
1803	1
1808	1
1816	1
1834	1
1837	1
1839	1
1847	2
1848	1
1851	1
1853	1
1855	1
1858	1
1859	1
1861	2
1862	2
1863	2
1864	1
1871	2
1872	2
1873	2
1874	4
1877	1
1878	1
1879	2
1880	1
1881	1
1882	2
1883	3
1885	1
1887	1
1888	2
1889	3
1891	8
1892	4
1893	3
1895	8
1896	2
1897	3
1898	6
1899	7
1900	12
1901	2
1902	3
1903	9
1904	12
1905	10
1906	22
1907	10
1908	5
1909	33
1910	16
1911	30
1912	16
1913	24
1914	24
1915	53
1916	49
1917	18
1918	56
1919	35
1920	46
1921	50
1922	30
1923	95
1924	80
1925	326
1926	133
1927	264
1928	127
1929	168
1930	421
1931	201
1932	288
1933	365
1934	373
1935	341
1936	270
1937	183
1938	340
1939	285
1940	338
1941	408
1942	589
1943	855
1944	521
1945	799
1946	586
1947	249
1948	412
1949	544
1950	371
1951	373
1952	777
1953	441
1954	298
1955	570
1956	1,166
1957	469
1958	331
1959	488
1960	402
1961	291
1962	1,325
1963	368
1964	417
1965	462
1966	489
1967	644
1968	564
1969	638
1970	711
1971	723
1972	610
1973	1,016
1974	1,302
1975	365
1976	426
1977	1,078
1978	872
1979	459
1980	768
1981	940
1982	476
1983	1,326
1984	925
1985	561
1986	921
1987	1,054
1988	1,096
1989	1,307
1990	1,135
1991	1,237
1992	1,025
1993	495
1994	858
1995	1,734
1996	1,706
1997	1,619
1998	1,080
1999	795
2000	825
2001	960
2002	964
2003	1,127
2004	769
2005	784
2006	1,522
2007	742
2008	1,309
2009	1,050
2010	880
2011	1,483
2012	711
2013	739
2014	1,062
2015	824
2016	741
2017	1,302
2018	726
2019	686
2020	496
2021	443
2022	479
2023	385
2024	566
2025	928
2026	745

Download the Data

Data for records on 1948-05-17: 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 10	284
10 to 20	33
20 to 30	3
30 to 40	2
40 to 50	1
50 to 60	0
60 to 70	1