785 station records on 21 November 2015 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.
Weather records on 21 November 2015: highest significance records shown on the map
Station
Country
Type
Value
Significance
Marengo
United States
Record daily snowfall
32.0 cm (12.6 in)
90 of 100 (Exceptional)
Vinton
United States
Record daily snowfall
20.3 cm (8.0 in)
79 of 100 (Major)
Allison
United States
Record daily snowfall
25.4 cm (10.0 in)
74 of 100 (Major)
Darlington Wwtp
United States
Record daily snowfall
32.5 cm (12.8 in)
73 of 100 (Major)
Postville
United States
Record daily snowfall
25.4 cm (10.0 in)
72 of 100 (Major)
Adrian 2 NNE
United States
Record daily snowfall
15.2 cm (6.0 in)
71 of 100 (Major)
Clinton #1
United States
Record snow depth
17.8 cm (7.0 in)
70 of 100 (Major)
Storm Lake
United States
Record daily snowfall
24.6 cm (9.7 in)
70 of 100 (Major)
Geneseo
United States
Record daily snowfall
20.3 cm (8.0 in)
69 of 100 (Major)
Clinton #1
United States
Record daily snowfall
17.8 cm (7.0 in)
69 of 100 (Major)
Elkader 6 SSW
United States
Record snow depth
27.9 cm (11.0 in)
67 of 100 (Major)
Washington
United States
Record daily snowfall
10.2 cm (4.0 in)
67 of 100 (Major)
Moline Quad City Intl AP
United States
Record daily snowfall
17.8 cm (7.0 in)
67 of 100 (Major)
Elgin Water
United States
Record snow depth
17.8 cm (7.0 in)
64 of 100 (Major)
Ottawa 4SW
United States
Record snow depth
10.2 cm (4.0 in)
64 of 100 (Major)
Bridgewater
United States
Record daily snowfall
35.6 cm (14.0 in)
64 of 100 (Major)
Darlington Wwtp
United States
Record snow depth
33.0 cm (13.0 in)
64 of 100 (Major)
Falsterbo
Sweden
Record daily precipitation
35.4 mm (1.4 in)
63 of 100 (Major)
Parkersburg
United States
Record snow depth
27.9 cm (11.0 in)
63 of 100 (Major)
O'Neill
United States
Record daily precipitation
50.8 mm (2.0 in)
63 of 100 (Major)
Cuba City
United States
Record daily snowfall
25.4 cm (10.0 in)
63 of 100 (Major)
Xilin Hot
China
Record daily precipitation
59.9 mm (2.4 in)
62 of 100 (Major)
Khust
Ukraine
Record daily precipitation
53.1 mm (2.1 in)
62 of 100 (Major)
Elgin Water
United States
Record daily snowfall
16.5 cm (6.5 in)
62 of 100 (Major)
Mt Carroll
United States
Record snow depth
20.3 cm (8.0 in)
62 of 100 (Major)
Parkersburg
United States
Record daily snowfall
27.9 cm (11.0 in)
62 of 100 (Major)
Walnut
United States
Record daily snowfall
15.2 cm (6.0 in)
61 of 100 (Major)
Newton
United States
Record daily snowfall
10.2 cm (4.0 in)
61 of 100 (Major)
Ann Arbor U of Mich
United States
Record snow depth
22.9 cm (9.0 in)
61 of 100 (Major)
Whitewater Wwtp
United States
Record daily snowfall
15.2 cm (6.0 in)
61 of 100 (Major)
Minonk
United States
Record daily snowfall
9.4 cm (3.7 in)
60 of 100 (Major)
Frankfort Disposal
United States
Record daily snowfall
16.5 cm (6.5 in)
60 of 100 (Major)
Britt 3E
United States
Record daily snowfall
24.1 cm (9.5 in)
60 of 100 (Major)
Emmetsburg
United States
Record daily snowfall
25.4 cm (10.0 in)
60 of 100 (Major)
Holstein
United States
Record daily snowfall
20.3 cm (8.0 in)
60 of 100 (Major)
New Hampton
United States
Record daily snowfall
22.9 cm (9.0 in)
60 of 100 (Major)
Ann Arbor U of Mich
United States
Record daily snowfall
23.1 cm (9.1 in)
60 of 100 (Major)
Beloit
United States
Record snow depth
35.6 cm (14.0 in)
60 of 100 (Major)
Skurup_D
Sweden
Record daily precipitation
34.8 mm (1.4 in)
59 of 100 (Notable)
Charles City
United States
Record daily snowfall
24.4 cm (9.6 in)
59 of 100 (Notable)
Dubuque L&D 11
United States
Record daily snowfall
24.1 cm (9.5 in)
58 of 100 (Notable)
Grinnell 3 SW
United States
Record daily snowfall
12.7 cm (5.0 in)
58 of 100 (Notable)
Rock Rapids
United States
Record daily snowfall
38.1 cm (15.0 in)
58 of 100 (Notable)
Sheldon
United States
Record snow depth
35.6 cm (14.0 in)
58 of 100 (Notable)
Sibley
United States
Record daily snowfall
24.1 cm (9.5 in)
58 of 100 (Notable)
Flint Fcwos
United States
Record daily snowfall
25.4 cm (10.0 in)
58 of 100 (Notable)
General Wayne A Downing Intl A
United States
Record daily snowfall
11.7 cm (4.6 in)
58 of 100 (Notable)
Chicago Midway AP 3SW
United States
Record snow depth
12.7 cm (5.0 in)
57 of 100 (Notable)
Sigourney
United States
Record snow depth
17.8 cm (7.0 in)
57 of 100 (Notable)
Zhangwu
China
Record daily precipitation
50.0 mm (2.0 in)
56 of 100 (Notable)
Fairfield
United States
Record daily snowfall
5.1 cm (2.0 in)
56 of 100 (Notable)
Ft Dodge 5NNW
United States
Record daily snowfall
27.9 cm (11.0 in)
56 of 100 (Notable)
Guttenberg L&D 10
United States
Record daily snowfall
22.9 cm (9.0 in)
56 of 100 (Notable)
Hampton
United States
Record snow depth
30.5 cm (12.0 in)
56 of 100 (Notable)
Beloit
United States
Record daily snowfall
35.6 cm (14.0 in)
56 of 100 (Notable)
Brodhead Wwtp
United States
Record snow depth
27.9 cm (11.0 in)
56 of 100 (Notable)
Sigourney
United States
Record daily snowfall
17.8 cm (7.0 in)
55 of 100 (Notable)
Adrian 2 NNE
United States
Record snow depth
15.2 cm (6.0 in)
55 of 100 (Notable)
Marion
United States
Record snow depth
35.6 cm (14.0 in)
55 of 100 (Notable)
Union Grove Wwtp
United States
Record snow depth
17.8 cm (7.0 in)
55 of 100 (Notable)
Counts by Type and Timescale
785 records
Records set or tied on 21 November 2015 by type: Highest daily maximum 89, Lowest daily maximum 24, Highest daily minimum 102, Lowest daily minimum 64, Heaviest daily rainfall 160, Heaviest daily snowfall 201, Deepest snow cover 145.
Records on 21 November 2015 by type
Record type
Records
Highest daily maximum
89
Lowest daily maximum
24
Highest daily minimum
102
Lowest daily minimum
64
Heaviest daily rainfall
160
Heaviest daily snowfall
201
Deepest snow cover
145
Records on 21 November 2015 by timescale: all-time 2, monthly 95, daily 688.
Records on 21 November 2015 by timescale
Timescale
Records
all-time
2
monthly
95
daily
688
How Much Records Were Beaten By
670 broken records
Margins by which the 670 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 331.0. Ties are not counted.
Histogram of margins by which records were beaten on 21 November 2015
Margin
Records
0 to 50
511
50 to 100
92
100 to 150
45
150 to 200
17
200 to 250
4
250 to 300
0
300 to 350
1
Top 20 by Significance
21 November 2015
Top 20 records on 21 November 2015 by significance
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
1803 to 2015
2015
Records set or tied on this calendar date in each year from 1803 to 2015. 2015 had 785 records.
Counts for years before the ledger starts come from the same station rules.
Records on 11-21 in each year
Year
Records
1803
1
1816
2
1821
2
1829
1
1835
1
1839
1
1844
1
1847
1
1855
1
1856
1
1857
1
1858
4
1866
1
1868
1
1870
2
1871
2
1872
1
1873
2
1874
1
1876
2
1879
4
1880
4
1881
1
1882
1
1883
3
1887
3
1889
1
1890
7
1893
1
1894
4
1896
1
1897
4
1898
3
1899
4
1900
7
1901
5
1902
7
1903
5
1904
9
1905
3
1906
14
1907
7
1908
9
1909
18
1910
23
1911
19
1912
14
1913
79
1914
51
1915
21
1916
66
1917
248
1918
12
1919
22
1920
36
1921
96
1922
42
1923
27
1924
104
1925
73
1926
420
1927
108
1928
109
1929
467
1930
243
1931
682
1932
162
1933
381
1934
578
1935
62
1936
192
1937
1,309
1938
119
1939
303
1940
337
1941
329
1942
662
1943
212
1944
250
1945
308
1946
604
1947
540
1948
414
1949
588
1950
904
1951
605
1952
424
1953
408
1954
927
1955
419
1956
624
1957
442
1958
407
1959
460
1960
691
1961
738
1962
524
1963
601
1964
1,014
1965
448
1966
589
1967
336
1968
358
1969
611
1970
400
1971
514
1972
735
1973
1,100
1974
809
1975
548
1976
315
1977
1,313
1978
1,034
1979
1,409
1980
805
1981
939
1982
807
1983
1,066
1984
525
1985
1,808
1986
815
1987
949
1988
928
1989
797
1990
1,337
1991
944
1992
1,375
1993
1,413
1994
1,179
1995
1,084
1996
1,882
1997
449
1998
1,312
1999
920
2000
1,191
2001
811
2002
847
2003
1,007
2004
873
2005
491
2006
1,181
2007
936
2008
1,079
2009
1,131
2010
894
2011
944
2012
792
2013
543
2014
815
2015
785
2016
1,000
2017
687
2018
391
2019
653
2020
421
2021
296
2022
824
2023
584
2024
519
2025
745
Download the Data
Data for records on 2015-11-21: 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.