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Monthly Snow Area Rankings

  All snow cover extents are shown in thousands of square kilometers
  * Note: These calculations are based on NH SCE CDR v01r01

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Northern Hemisphere North America United States
Eurasia Canada Alaska

 

Northern Hemisphere
2020 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
2 43,477 45,594 -2,117 52/54 51,320 (1978) 42,667 (1995)
1 46,375 46,866 -490 37/54 50,275 (2008) 41,890 (1981)
 
2019 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 43,469 43,981 -512 36/54 46,846 (2012) 37,441 (1980)
11 37,060 33,958 3,102 5/54 38,597 (1993) 28,279 (1979)
10 22,256 17,544 4,712 5/52 25,724 (1976) 12,781 (1988)
9 5,145 5,235 -90 32/51 7,762 (1972) 3,838 (1990)
8 2,508 2,797 -289 41/51 5,308 (1967) 2,089 (1968)
7 2,613 3,665 -1,052 44/50 8,210 (1967) 2,325 (2012)
6 5,936 9,418 -3,481 49/52 14,972 (1978) 4,922 (2012)
5 17,063 19,019 -1,956 44/53 23,093 (1974) 15,377 (2010)
4 29,060 30,215 -1,155 42/53 34,606 (1979) 27,914 (2016)
3 39,480 40,130 -650 37/53 44,282 (1985) 37,122 (1990)
2 46,025 45,594 432 23/54 51,320 (1978) 42,667 (1995)
1 47,239 46,866 374 26/54 50,275 (2008) 41,890 (1981)
 
2018 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 44,547 43,981 566 15/54 46,846 (2012) 37,441 (1980)
11 37,774 33,958 3,815 3/54 38,597 (1993) 28,279 (1979)
10 20,058 17,544 2,514 15/52 25,724 (1976) 12,781 (1988)
9 6,365 5,235 1,131 9/51 7,762 (1972) 3,838 (1990)
8 2,733 2,797 -64 27/51 5,308 (1967) 2,089 (1968)
7 3,008 3,665 -658 39/50 8,210 (1967) 2,325 (2012)
6 7,838 9,418 -1,580 41/52 14,972 (1978) 4,922 (2012)
5 18,259 19,019 -760 37/53 23,093 (1974) 15,377 (2010)
4 32,059 30,215 1,844 10/53 34,606 (1979) 27,914 (2016)
3 41,825 40,130 1,696 13/53 44,282 (1985) 37,122 (1990)
2 46,293 45,594 699 19/54 51,320 (1978) 42,667 (1995)
1 46,930 46,866 65 28/54 50,275 (2008) 41,890 (1981)
 
2017 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 43,569 43,981 -411 34/54 46,846 (2012) 37,441 (1980)
11 35,975 33,958 2,017 11/54 38,597 (1993) 28,279 (1979)
10 21,167 17,544 3,623 10/52 25,724 (1976) 12,781 (1988)
9 6,151 5,235 916 11/51 7,762 (1972) 3,838 (1990)
8 2,915 2,797 118 21/51 5,308 (1967) 2,089 (1968)
7 3,454 3,665 -212 28/50 8,210 (1967) 2,325 (2012)
6 9,274 9,418 -144 27/52 14,972 (1978) 4,922 (2012)
5 20,734 19,019 1,715 12/53 23,093 (1974) 15,377 (2010)
4 31,169 30,215 954 17/53 34,606 (1979) 27,914 (2016)
3 40,067 40,130 -62 29/53 44,282 (1985) 37,122 (1990)
2 45,964 45,594 370 24/54 51,320 (1978) 42,667 (1995)
1 49,184 46,866 2,319 6/54 50,275 (2008) 41,890 (1981)

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Eurasia
2020 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
2 26,761 28,479 -1,718 52/54 32,285 (1978) 25,913 (2002)
1 28,869 29,322 -453 39/54 32,265 (2008) 25,823 (1981)
 
2019 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 26,304 27,135 -831 42/54 29,699 (2002) 22,882 (1980)
11 21,974 20,474 1,501 14/54 24,132 (1993) 16,796 (1979)
10 12,768 9,497 3,270 7/52 17,218 (1976) 5,578 (1988)
9 1,574 1,526 48 27/51 3,409 (1977) 540 (1984)
8 158 375 -217 40/51 1,859 (1967) 82 (1968)
7 315 765 -450 38/50 3,551 (1967) 141 (2012)
6 1,742 3,609 -1,867 46/52 7,129 (1978) 1,068 (2012)
5 8,503 9,723 -1,459 46/53 12,511 (1976) 7,262 (2013)
4 16,301 17,174 -873 41/53 20,687 (1981) 14,767 (2014)
3 22,898 24,492 -1,594 47/53 27,950 (1981) 20,183 (2002)
2 27,678 28,479 -801 42/54 32,285 (1978) 25,913 (2002)
1 29,581 29,322 259 25/54 32,265 (2008) 25,823 (1981)
 
2018 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 27,594 27,135 460 16/54 29,699 (2002) 22,882 (1980)
11 22,053 20,474 1,580 13/54 24,132 (1993) 16,796 (1979)
10 10,391 9,497 894 23/52 17,218 (1976) 5,578 (1988)
9 1,300 1,526 -226 34/51 3,409 (1977) 540 (1984)
8 141 375 -234 45/51 1,859 (1967) 82 (1968)
7 206 765 -559 42/50 3,551 (1967) 141 (2012)
6 2,532 3,609 -1,512 41/52 7,129 (1978) 1,068 (2012)
5 9,307 9,723 -582 34/53 12,511 (1976) 7,262 (2013)
4 17,257 17,174 83 26/53 20,687 (1981) 14,767 (2014)
3 25,041 24,492 549 22/53 27,950 (1981) 20,183 (2002)
2 28,818 28,479 339 24/54 32,285 (1978) 25,913 (2002)
1 29,338 29,322 15 30/54 32,265 (2008) 25,823 (1981)
 
2017 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 26,859 27,135 -275 32/54 29,699 (2002) 22,882 (1980)
11 21,292 20,474 818 19/54 24,132 (1993) 16,796 (1979)
10 12,052 9,497 2,554 12/52 17,218 (1976) 5,578 (1988)
9 2,142 1,526 616 12/51 3,409 (1977) 540 (1984)
8 262 375 -113 28/51 1,859 (1967) 82 (1968)
7 387 765 -379 36/50 3,551 (1967) 141 (2012)
6 4,220 3,609 611 20/52 7,129 (1978) 1,068 (2012)
5 10,975 9,723 1,252 12/53 12,511 (1976) 7,262 (2013)
4 17,587 17,174 414 21/53 20,687 (1981) 14,767 (2014)
3 24,558 24,492 66 28/53 27,950 (1981) 20,183 (2002)
2 29,262 28,479 783 19/54 32,285 (1978) 25,913 (2002)
1 31,149 29,322 1,826 7/54 32,265 (2008) 25,823 (1981)

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North America
2020 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
2 16,716 17,115 -399 39/54 19,035 (1978) 15,831 (1992)
1 17,506 17,543 -37 33/54 18,816 (1985) 16,067 (1981)
 
2019 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 17,165 16,846 318 18/54 18,273 (2009) 14,559 (1980)
11 15,086 13,485 1,601 3/54 15,720 (2018) 11,483 (1979)
10 9,488 8,047 1,441 3/52 9,763 (2002) 6,364 (1979)
9 3,570 3,709 -138 36/51 5,065 (2018) 2,892 (1968)
8 2,350 2,422 -72 34/51 3,855 (1978) 2,007 (1968)
7 2,298 2,900 -602 47/50 5,073 (1978) 2,184 (2012)
6 4,194 5,809 -1,615 50/52 7,843 (1978) 3,854 (2012)
5 8,560 9,296 -736 46/53 11,478 (1974) 7,798 (2010)
4 12,759 13,041 -283 35/53 15,077 (1975) 11,020 (2010)
3 16,582 15,638 944 9/53 17,293 (1969) 14,041 (1968)
2 18,347 17,115 1,232 4/54 19,035 (1978) 15,831 (1992)
1 17,658 17,543 115 27/54 18,816 (1985) 16,067 (1981)
 
2018 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 16,953 16,846 106 22/54 18,273 (2009) 14,559 (1980)
11 15,720 13,485 2,236 1/54 15,720 (2018) 11,483 (1979)
10 9,667 8,047 1,620 2/52 9,763 (2002) 6,364 (1979)
9 5,065 3,709 1,357 1/51 5,065 (2018) 2,892 (1968)
8 2,592 2,422 170 17/51 3,855 (1978) 2,007 (1968)
7 2,801 2,900 -99 29/50 5,073 (1978) 2,184 (2012)
6 5,306 5,809 -503 36/52 7,843 (1978) 3,854 (2012)
5 8,951 9,296 -345 33/53 11,478 (1974) 7,798 (2010)
4 14,803 13,041 1,761 4/53 15,077 (1975) 11,020 (2010)
3 16,784 15,638 1,146 5/53 17,293 (1969) 14,041 (1968)
2 17,475 17,115 360 20/54 19,035 (1978) 15,831 (1992)
1 17,592 17,543 49 31/54 18,816 (1985) 16,067 (1981)
 
2017 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 16,710 16,846 -136 26/54 18,273 (2009) 14,559 (1980)
11 14,683 13,485 1,198 9/54 15,720 (2018) 11,483 (1979)
10 9,115 8,047 1,068 9/52 9,763 (2002) 6,364 (1979)
9 4,009 3,709 300 16/51 5,065 (2018) 2,892 (1968)
8 2,652 2,422 231 14/51 3,855 (1978) 2,007 (1968)
7 3,067 2,900 167 19/50 5,073 (1978) 2,184 (2012)
6 5,054 5,809 -754 41/52 7,843 (1978) 3,854 (2012)
5 9,759 9,296 463 18/53 11,478 (1974) 7,798 (2010)
4 13,582 13,041 540 22/53 15,077 (1975) 11,020 (2010)
3 15,510 15,638 -128 34/53 17,293 (1969) 14,041 (1968)
2 16,702 17,115 -413 40/54 19,035 (1978) 15,831 (1992)
1 18,035 17,543 492 13/54 18,816 (1985) 16,067 (1981)

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Canada
2020 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
2 10,346 10,279 66 19/54 10,424 (2013) 10,015 (1981)
1 10,374 10,294 80 9/54 10,424 (1982) 10,060 (1981)
 
2019 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 10,276 10,096 180 12/54 10,403 (2016) 9,691 (1980)
11 9,836 8,663 1,173 3/54 9,978 (2018) 7,254 (1987)
10 5,849 4,774 1,075 7/52 6,708 (2018) 3,488 (1987)
9 1,234 1,395 -161 38/51 2,812 (2018) 647 (1968)
8 321 375 -54 31/51 1,569 (1978) 132 (2009)
7 226 772 -546 49/50 2,718 (1978) 143 (2012)
6 1,933 3,258 -1,326 50/52 4,899 (1978) 1,604 (2012)
5 5,526 5,905 -379 39/53 7,902 (1974) 4,762 (2010)
4 8,364 8,647 -284 39/53 9,860 (1979) 6,939 (2010)
3 10,102 10,023 78 30/53 10,368 (1982) 9,486 (1981)
2 10,390 10,279 111 7/54 10,424 (2013) 10,015 (1981)
1 10,312 10,294 18 29/54 10,424 (1982) 10,060 (1981)
 
2018 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 10,263 10,096 167 13/54 10,403 (2016) 9,691 (1980)
11 9,978 8,663 1,315 1/54 9,978 (2018) 7,254 (1987)
10 6,708 4,774 1,934 1/52 6,708 (2018) 3,488 (1987)
9 2,812 1,395 1,417 1/51 2,812 (2018) 647 (1968)
8 424 375 49 22/51 1,569 (1978) 132 (2009)
7 616 772 -156 32/50 2,718 (1978) 143 (2012)
6 2,852 3,258 -407 35/52 4,899 (1978) 1,604 (2012)
5 5,715 5,905 -190 27/53 7,902 (1974) 4,762 (2010)
4 9,745 8,647 1,097 4/53 9,860 (1979) 6,939 (2010)
3 10,312 10,023 289 11/53 10,368 (1982) 9,486 (1981)
2 10,349 10,279 70 18/54 10,424 (2013) 10,015 (1981)
1 10,387 10,294 93 7/54 10,424 (1982) 10,060 (1981)
 
2017 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 10,219 10,096 123 17/54 10,403 (2016) 9,691 (1980)
11 9,917 8,663 1,254 2/54 9,978 (2018) 7,254 (1987)
10 5,808 4,774 1,034 8/52 6,708 (2018) 3,488 (1987)
9 1,607 1,395 212 18/51 2,812 (2018) 647 (1968)
8 470 375 95 19/51 1,569 (1978) 132 (2009)
7 863 772 91 19/50 2,718 (1978) 143 (2012)
6 2,599 3,258 -659 41/52 4,899 (1978) 1,604 (2012)
5 6,495 5,905 590 11/53 7,902 (1974) 4,762 (2010)
4 9,265 8,647 617 19/53 9,860 (1979) 6,939 (2010)
3 10,101 10,023 78 31/53 10,368 (1982) 9,486 (1981)
2 10,320 10,279 41 24/54 10,424 (2013) 10,015 (1981)
1 10,364 10,294 70 12/54 10,424 (1982) 10,060 (1981)

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Contiguous United States
2020 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
2 2,615 3,105 -491 44/54 4,910 (1978) 1,972 (1992)
1 3,383 3,535 -152 34/54 4,678 (1985) 2,292 (1981)
 
2019 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 3,202 3,061 141 20/54 4,246 (2009) 1,242 (1980)
11 1,644 1,231 413 11/54 2,268 (2014) 174 (1999)
10 491 186 305 3/52 548 (2009) 0 (tie)
9 72 8 64 1/51 72 (2019) 0 (tie)
8 0 6 -6 12-51/51 65 (1983) 0 (tie)
7 0 17 -17 24-50/50 84 (1997) 0 (tie)
6 7 55 -48 32/52 268 (1973) 0 (tie)
5 48 167 -119 41/53 527 (1983) 0 (2004)
4 784 730 54 22/53 1,602 (1975) 209 (1968)
3 2,750 1,918 832 6/53 3,209 (1969) 906 (1968)
2 4,226 3,105 1,121 4/54 4,910 (1978) 1,972 (1992)
1 3,653 3,535 118 24/54 4,678 (1985) 2,292 (1981)
 
2018 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 3,004 3,061 -57 26/54 4,246 (2009) 1,242 (1980)
11 2,153 1,231 921 3/54 2,268 (2014) 174 (1999)
10 177 186 -9 19/52 548 (2009) 0 (tie)
9 0 8 -8 20-51/51 72 (2019) 0 (tie)
8 0 6 -6 12-50/51 65 (1983) 0 (tie)
7 0 17 -17 24-50/50 84 (1997) 0 (tie)
6 0 55 -55 34-52/52 268 (1973) 0 (tie)
5 83 167 -83 37/53 527 (1983) 0 (2004)
4 1,316 730 587 5/53 1,602 (1975) 209 (1968)
3 2,705 1,918 787 7/53 3,209 (1969) 906 (1968)
2 3,363 3,105 258 21/54 4,910 (1978) 1,972 (1992)
1 3,442 3,535 -93 32/54 4,678 (1985) 2,292 (1981)
 
2017 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 2,751 3,061 -309 35/54 4,246 (2009) 1,242 (1980)
11 1,150 1,231 -81 24/54 2,268 (2014) 174 (1999)
10 184 186 -2 18/52 548 (2009) 0 (tie)
9 45 8 37 4/51 72 (2019) 0 (tie)
8 0 6 -6 12-50/51 65 (1983) 0 (tie)
7 0 17 -17 24-50/50 84 (1997) 0 (tie)
6 0 55 -55 34-52/52 268 (1973) 0 (tie)
5 135 167 -32 27/53 527 (1983) 0 (2004)
4 631 730 -99 33/53 1,602 (1975) 209 (1968)
3 1,709 1,918 -209 35/53 3,209 (1969) 906 (1968)
2 2,673 3,105 -432 42/54 4,910 (1978) 1,972 (1992)
1 3,918 3,535 383 13/54 4,678 (1985) 2,292 (1981)

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Alaska
2020 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
2 1,534 1,515 20 1-6/54 1,534 (tie) 1,417 (1968)
1 1,528 1,495 33 5/54 1,534 (tie) 1,423 (1986)
 
2019 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 1,500 1,480 19 7-24/54 1,534 (2012) 1,330 (1967)
11 1,419 1,406 13 27/54 1,500 (tie) 950 (1979)
10 953 889 64 18/52 1,228 (1971) 348 (1979)
9 106 194 -88 42/51 417 (1996) 35 (1974)
8 0 55 -55 42-51/51 546 (1967) 0 (tie)
7 1 74 -73 47/50 445 (1967) 0 (tie)
6 123 329 -206 50/52 856 (1985) 37 (2015)
5 836 1,033 -198 43/53 1,486 (1985) 595 (2016)
4 1,452 1,423 29 35/53 1,526 (2018) 1,360 (2016)
3 1,513 1,486 27 3/53 1,534 (2008) 1,293 (1968)
2 1,521 1,515 6 27/54 1,534 (tie) 1,417 (1968)
1 1,500 1,495 4 17-38/54 1,534 (tie) 1,423 (1986)
 
2018 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 1,500 1,480 19 7-24/54 1,534 (2012) 1,330 (1967)
11 1,403 1,406 -3 34/54 1,500 (tie) 950 (1979)
10 596 889 -293 50/52 1,228 (1971) 348 (1979)
9 82 194 -113 45/51 417 (1996) 35 (1974)
8 52 55 -3 29/51 546 (1967) 0 (tie)
7 41 74 -33 34/50 445 (1967) 0 (tie)
6 305 329 -24 32/52 856 (1985) 37 (2015)
5 987 1,033 -47 33/53 1,486 (1985) 595 (2016)
4 1,526 1,423 104 1/52 1,526 (2018) 1,360 (2016)
3 1,534 1,486 49 2/53 1,534 (2008) 1,293 (1968)
2 1,534 1,515 20 1-6/54 1,534 (tie) 1,417 (1968)
1 1,534 1,495 39 1-4/54 1,534 (tie) 1,423 (1986)
 
2017 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 1,514 1,480 34 3/54 1,534 (2012) 1,330 (1967)
11 1,429 1,406 23 22/54 1,500 (tie) 950 (1979)
10 947 889 58 20/52 1,228 (1971) 348 (1979)
9 206 194 12 21/51 417 (1996) 35 (1974)
8 88 55 33 16/51 546 (1967) 0 (tie)
7 92 74 18 18/50 445 (1967) 0 (tie)
6 305 329 -23 31/52 856 (1985) 37 (2015)
5 953 1,033 -80 35/53 1,486 (1985) 595 (2016)
4 1,500 1,423 77 2-14/52 1,526 (2018) 1,360 (2016)
3 1,500 1,486 14 10-27/53 1,534 (2008) 1,293 (1968)
2 1,500 1,515 -15 34-44/54 1,534 (tie) 1,417 (1968)
1 1,525 1,495 30 7/54 1,534 (tie) 1,423 (1986)

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Note: Missing months are July 1968, June-Oct 1969, and July-Sep 1971.