Great Lakes Ice Cover, Winter 2021

Back to Historical Ice Page

data download for 2021:
Shapefiles | ASCII files | JPG images

geographic metadata

1900's
'73 '74 '75 '76 '77 '78 '79
'80 '81 '82 '83 '84 '85 '86 '87 '88 '89
'90 '91 '92 '93 '94 '95 '96 '97 '98 '99
2000's
'00 '01 '02 '03 '04 '05 '06 '07 '08 '09
'10 '11 '12 '13 '14 '15 '16 '17 '18 '19
'20 '21 '22 '23 '24 '25

Summary


2021 Max Ice Cover
2021 compared to other years

Daily Charts

Nov 22, 2020Nov 23, 2020Nov 24, 2020Nov 25, 2020
Nov 26, 2020Nov 27, 2020Nov 28, 2020Nov 29, 2020
Nov 30, 2020Dec 01, 2020Dec 02, 2020Dec 03, 2020
Dec 04, 2020Dec 05, 2020Dec 06, 2020Dec 07, 2020
Dec 08, 2020Dec 09, 2020Dec 10, 2020Dec 11, 2020
Dec 12, 2020Dec 13, 2020Dec 14, 2020Dec 15, 2020
Dec 16, 2020Dec 17, 2020Dec 18, 2020Dec 19, 2020
Dec 20, 2020Dec 21, 2020Dec 22, 2020Dec 23, 2020
Dec 24, 2020Dec 25, 2020Dec 26, 2020Dec 27, 2020
Dec 28, 2020Dec 29, 2020Dec 30, 2020Dec 31, 2020
Jan 01, 2021Jan 02, 2021Jan 03, 2021Jan 04, 2021
Jan 05, 2021Jan 06, 2021Jan 07, 2021Jan 08, 2021
Jan 09, 2021Jan 10, 2021Jan 11, 2021Jan 12, 2021
Jan 13, 2021Jan 14, 2021Jan 15, 2021Jan 16, 2021
Jan 17, 2021Jan 18, 2021Jan 19, 2021Jan 20, 2021
Jan 21, 2021Jan 22, 2021Jan 23, 2021Jan 24, 2021
Jan 25, 2021Jan 26, 2021Jan 27, 2021Jan 28, 2021
Jan 29, 2021Jan 30, 2021Jan 31, 2021Feb 01, 2021
Feb 02, 2021Feb 03, 2021Feb 04, 2021Feb 05, 2021
Feb 06, 2021Feb 07, 2021Feb 08, 2021Feb 09, 2021
Feb 10, 2021Feb 11, 2021Feb 12, 2021Feb 13, 2021
Feb 14, 2021Feb 15, 2021Feb 16, 2021Feb 17, 2021
Feb 18, 2021Feb 19, 2021Feb 20, 2021Feb 21, 2021
Feb 22, 2021Feb 23, 2021Feb 24, 2021Feb 25, 2021
Feb 26, 2021Feb 27, 2021Feb 28, 2021Mar 01, 2021
Mar 02, 2021Mar 03, 2021Mar 04, 2021Mar 05, 2021
Mar 06, 2021Mar 07, 2021Mar 08, 2021Mar 09, 2021
Mar 10, 2021Mar 11, 2021Mar 12, 2021Mar 13, 2021
Mar 14, 2021Mar 15, 2021Mar 16, 2021Mar 17, 2021
Mar 18, 2021Mar 19, 2021Mar 20, 2021Mar 21, 2021
Mar 22, 2021Mar 23, 2021Mar 24, 2021Mar 25, 2021
Mar 26, 2021Mar 27, 2021Mar 28, 2021Mar 29, 2021
Mar 30, 2021Mar 31, 2021Apr 01, 2021Apr 02, 2021
Apr 03, 2021Apr 04, 2021Apr 05, 2021Apr 06, 2021
Apr 07, 2021Apr 08, 2021Apr 09, 2021Apr 10, 2021
Apr 11, 2021Apr 12, 2021Apr 13, 2021Apr 14, 2021
Apr 15, 2021Apr 16, 2021Apr 17, 2021Apr 18, 2021
Apr 19, 2021Apr 20, 2021Apr 21, 2021Apr 22, 2021
Apr 23, 2021Apr 24, 2021Apr 25, 2021Apr 26, 2021
Apr 27, 2021Apr 28, 2021Apr 29, 2021