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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
2018 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
3 41,825 40,130 1,696 13/52 44,282 (1985) 37,122 (1990)
2 46,293 45,594 699 19/52 51,320 (1978) 42,667 (1995)
1 46,930 46,866 65 27/52 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 33/52 46,846 (2012) 37,441 (1980)
11 35,975 33,958 2,017 9/52 38,597 (1993) 28,279 (1979)
10 21,167 17,544 3,623 9/50 25,724 (1976) 12,781 (1988)
9 6,151 5,235 916 10/49 7,762 (1972) 3,838 (1990)
8 2,915 2,797 118 21/49 5,308 (1967) 2,089 (1968)
7 3,454 3,665 -212 28/48 8,210 (1967) 2,325 (2012)
6 9,274 9,418 -144 27/50 14,972 (1978) 4,922 (2012)
5 20,734 19,019 1,715 12/51 23,093 (1974) 15,377 (2010)
4 31,169 30,215 954 16/51 34,606 (1979) 27,914 (2016)
3 40,067 40,130 -62 29/52 44,282 (1985) 37,122 (1990)
2 45,964 45,594 370 23/52 51,320 (1978) 42,667 (1995)
1 49,184 46,866 2,319 6/51 50,275 (2008) 41,890 (1981)
 
2016 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 45,396 43,981 1,415 8/52 46,846 (2012) 37,441 (1980)
11 36,927 33,958 2,969 5/52 38,597 (1993) 28,279 (1979)
10 22,955 17,544 5,410 3/50 25,724 (1976) 12,781 (1988)
9 5,728 5,235 493 19/49 7,762 (1972) 3,838 (1990)
8 2,626 2,797 -171 30/49 5,308 (1967) 2,089 (1968)
7 2,554 3,665 -1,112 43/48 8,210 (1967) 2,325 (2012)
6 5,580 9,418 -3,838 48/50 14,972 (1978) 4,922 (2012)
5 16,343 19,019 -2,676 48/51 23,093 (1974) 15,377 (2010)
4 27,914 30,215 -2,301 51/51 34,606 (1979) 27,914 (2016)
3 37,165 40,130 -2,965 51/52 44,282 (1985) 37,122 (1990)
2 43,509 45,594 -2,085 50/52 51,320 (1978) 42,667 (1995)
1 48,800 46,866 1,934 10/51 50,275 (2008) 41,890 (1981)
 
2015 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 43,480 43,981 -501 34/52 46,846 (2012) 37,441 (1980)
11 36,246 33,958 2,287 8/52 38,597 (1993) 28,279 (1979)
10 21,400 17,544 3,856 8/50 25,724 (1976) 12,781 (1988)
9 5,871 5,235 636 15/49 7,762 (1972) 3,838 (1990)
8 2,576 2,797 -221 36/49 5,308 (1967) 2,089 (1968)
7 2,520 3,665 -1,146 44/48 8,210 (1967) 2,325 (2012)
6 5,430 9,418 -3,987 49/50 14,972 (1978) 4,922 (2012)
5 17,002 19,019 -2,017 45/51 23,093 (1974) 15,377 (2010)
4 30,090 30,215 -125 29/51 34,606 (1979) 27,914 (2016)
3 38,460 40,130 -1,670 45/52 44,282 (1985) 37,122 (1990)
2 44,988 45,594 -606 38/52 51,320 (1978) 42,667 (1995)
1 47,325 46,866 459 24/51 50,275 (2008) 41,890 (1981)

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Eurasia
2018 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
3 25,041 24,492 549 22/52 27,950 (1981) 20,183 (2002)
2 28,818 28,479 339 24/52 32,285 (1978) 25,913 (2002)
1 29,338 29,322 15 29/52 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 31/52 29,699 (2002) 22,882 (1980)
11 21,292 20,474 818 17/52 24,132 (1993) 16,796 (1979)
10 12,052 9,497 2,554 11/50 17,218 (1976) 5,578 (1988)
9 2,142 1,526 616 12/49 3,409 (1977) 540 (1984)
8 262 375 -113 28/49 1,859 (1967) 82 (1968)
7 387 765 -379 36/48 3,551 (1967) 141 (2012)
6 4,220 3,609 611 20/50 7,129 (1978) 1,068 (2012)
5 10,975 9,723 1,252 12/51 12,511 (1976) 7,262 (2013)
4 17,587 17,174 414 21/51 20,687 (1981) 14,767 (2014)
3 24,558 24,492 66 28/52 27,950 (1981) 20,183 (2002)
2 29,262 28,479 783 19/52 32,285 (1978) 25,913 (2002)
1 31,149 29,322 1,826 7/51 32,265 (2008) 25,823 (1981)
 
2016 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 27,751 27,135 616 12/52 29,699 (2002) 22,882 (1980)
11 24,034 20,474 3,560 2/52 24,132 (1993) 16,796 (1979)
10 13,484 9,497 3,987 3/50 17,218 (1976) 5,578 (1988)
9 1,690 1,526 163 21/49 3,409 (1977) 540 (1984)
8 190 375 -185 38/49 1,859 (1967) 82 (1968)
7 188 765 -577 42/48 3,551 (1967) 141 (2012)
6 1,269 3,609 -2,340 49/50 7,129 (1978) 1,068 (2012)
5 8,544 9,723 -1,179 43/51 12,511 (1976) 7,262 (2013)
4 15,482 17,174 -1,692 47/51 20,687 (1981) 14,767 (2014)
3 22,573 24,492 -1,919 48/52 27,950 (1981) 20,183 (2002)
2 26,832 28,479 -1,647 49/52 32,285 (1978) 25,913 (2002)
1 30,449 29,322 1,127 14/51 32,265 (2008) 25,823 (1981)
 
2015 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 26,647 27,135 -487 32/52 29,699 (2002) 22,882 (1980)
11 22,548 20,474 2,204 8/52 24,132 (1993) 16,796 (1979)
10 12,672 9,497 3,175 7/50 17,218 (1976) 5,578 (1988)
9 1,718 1,526 192 19/49 3,409 (1977) 540 (1984)
8 150 375 -225 41/49 1,859 (1967) 82 (1968)
7 223 765 -542 40/48 3,551 (1967) 141 (2012)
6 1,350 3,609 -2,259 48/50 7,129 (1978) 1,068 (2012)
5 8,933 9,723 -790 39/51 12,511 (1976) 7,262 (2013)
4 17,475 17,174 301 22/51 20,687 (1981) 14,767 (2014)
3 23,399 24,492 -1,093 43/52 27,950 (1981) 21,183 (2002)
2 27,594 28,479 -885 43/52 32,285 (1978) 25,913 (2002)
1 29,957 29,322 634 20/51 32,265 (2008) 25,823 (1981)

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North America
2018 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
3 16,784 15,638 1,146 5/52 17,293 (1969) 14,041 (1968)
2 17,475 17,115 360 19/52 19,035 (1978) 15,831 (1992)
1 17,592 17,543 49 30/52 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 24/52 18,273 (2009) 14,559 (1980)
11 14,683 13,485 1,198 7/52 15,387 (2014) 11,483 (1979)
10 9,115 8,047 1,068 7/50 9,763 (2002) 6,364 (1979)
9 4,009 3,709 300 15/49 4,899 (2014) 2,892 (1968)
8 2,652 2,422 231 14/49 3,855 (1978) 2,007 (1968)
7 3,067 2,900 167 19/48 5,073 (1978) 2,184 (2012)
6 5,054 5,809 -754 40/50 7,843 (1978) 3,854 (2012)
5 9,759 9,296 463 18/51 11,478 (1974) 7,798 (2010)
4 13,582 13,041 540 21/51 15,077 (1975) 11,020 (2010)
3 15,510 15,638 -128 33/52 17,293 (1969) 14,041 (1968)
2 16,702 17,115 -413 38/52 19,035 (1978) 15,831 (1992)
1 18,035 17,543 492 13/51 18,816 (1985) 16,067 (1981)
 
2016 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 17,645 16,846 799 11/52 18,273 (2009) 14,559 (1980)
11 12,893 13,485 -592 41/52 15,387 (2014) 11,483 (1979)
10 9,471 8,047 1,424 2/50 9,763 (2002) 6,364 (1979)
9 4,038 3,709 330 13/49 4,899 (2014) 2,892 (1968)
8 2,435 2,422 14 24/49 3,855 (1978) 2,007 (1968)
7 2,366 2,900 -534 43/48 5,073 (1978) 2,184 (2012)
6 4,311 5,809 -1,497 48/50 7,843 (1978) 3,854 (2012)
5 7,799 9,296 -1,497 50/51 11,478 (1974) 7,798 (2010)
4 12,433 13,041 -609 41/51 15,077 (1975) 11,020 (2010)
3 14,591 15,638 -1,046 50/52 17,293 (1969) 14,041 (1968)
2 16,677 17,115 -438 40/52 19,035 (1978) 15,831 (1992)
1 18,351 17,543 808 6/51 18,816 (1985) 16,067 (1981)
 
2015 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 16,833 16,846 -13 23/52 18,273 (2009) 14,559 (1980)
11 13,697 13,485 213 20/52 15,387 (2014) 11,483 (1979)
10 8,728 8,047 681 13/50 9,763 (2002) 6,364 (1979)
9 4,153 3,709 444 8/49 4,899 (2014) 2,892 (1968)
8 2,426 2,422 4 25/49 3,855 (1978) 2,007 (1968)
7 2,296 2,900 -604 46/48 5,073 (1978) 2,184 (2012)
6 4,080 5,809 -1,728 49/50 7,843 (1978) 3,854 (2012)
5 8,070 9,296 -1,226 48/51 11,478 (1974) 7,798 (2010)
4 12,615 13,041 -426 36/51 15,077 (1975) 11,020 (2010)
3 15,061 15,638 -576 42/52 17,293 (1969) 14,041 (1968)
2 17,394 17,115 279 21/52 19,035 (1978) 15,831 (1992)
1 17,368 17,543 -175 25/51 18,816 (1985) 16,067 (1981)

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Canada
2018 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
3 10,312 10,023 289 11/52 10,368 (1982) 9,486 (1981)
2 10,349 10,279 70 17/52 10,424 (2013) 10,015 (1981)
1 10,387 10,294 93 7/52 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 15/52 10,403 (2016) 9,691 (1980)
11 9,917 8,663 1,254 1/52 9,917 (2017) 7,254 (1987)
10 5,808 4,774 1,034 6/50 6,578 (2016) 3,488 (1987)
9 1,607 1,395 212 17/49 2,490 (1972) 647 (1968)
8 470 375 95 19/49 1,569 (1978) 132 (2009)
7 863 772 91 19/48 2,718 (1978) 143 (2012)
6 2,599 3,258 -659 40/50 4,899 (1978) 1,604 (2012)
5 6,495 5,905 590 11/51 7,902 (1974) 4,762 (2010)
4 9,265 8,647 617 18/51 9,860 (1979) 6,939 (2010)
3 10,101 10,023 78 30/52 10,368 (1982) 9,486 (1981)
2 10,320 10,279 41 22/52 10,424 (2013) 10,015 (1981)
1 10,364 10,294 70 10/51 10,424 (1982) 10,060 (1981)
 
2016 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 10,403 10,096 307 1/52 10,403 (2016) 9,691 (1980)
11 8,315 8,663 -348 39/52 9,917 (2017) 7,254 (1987)
10 6,578 4,774 1,804 1/50 6,578 (2016) 3,488 (1987)
9 1,683 1,395 288 14/49 2,490 (1972) 647 (1968)
8 388 375 12 23/49 1,569 (1978) 132 (2009)
7 317 772 -454 43/48 2,718 (1978) 143 (2012)
6 2,023 3,258 -1,235 48/50 4,899 (1978) 1,604 (2012)
5 5,011 5,905 -894 49/51 7,902 (1974) 4,762 (2010)
4 8,270 8,647 -378 39/51 9,860 (1979) 6,939 (2010)
3 9,910 10,023 -113 42/52 10,368 (1982) 9,486 (1981)
2 10,245 10,279 -35 39/52 10,424 (2013) 10,015 (1981)
1 10,354 10,294 60 13/51 10,424 (1982) 10,060 (1981)
 
2015 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 9,999 10,096 -96 40/52 10,403 (2016) 9,691 (1980)
11 8,695 8,663 32 29/52 9,917 (2017) 7,254 (1987)
10 5,596 4,774 822 10/50 6,578 (2016) 3,488 (1987)
9 1,605 1,395 210 18/49 2,490 (1972) 647 (1968)
8 281 375 -94 34/49 1,569 (1978) 132 (2009)
7 247 772 -525 47/48 2,718 (1978) 143 (2012)
6 1,889 3,258 -1,370 49/50 4,899 (1978) 1,604 (2012)
5 5,200 5,905 -705 47/51 7,902 (1974) 4,762 (2010)
4 8,593 8,647 -55 35/51 9,860 (1979) 6,939 (2010)
3 10,093 10,023 70 31/52 10,368 (1982) 9,486 (1981)
2 10,351 10,279 72 15/52 10,424 (2013) 10,015 (1981)
1 10,324 10,294 30 22/51 10,424 (1982) 10,060 (1981)

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Contiguous United States
2018 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
3 2,705 1,918 787 6/52 3,209 (1969) 906 (1968)
2 3,363 3,105 258 20/52 4,910 (1978) 1,972 (1992)
1 3,442 3,535 -93 31/52 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 33/52 4,246 (2009) 1,242 (1980)
11 1,150 1,231 -81 22/52 2,268 (2014) 174 (1999)
10 184 186 -2 17/50 548 (2009) 0 (tie)
9 45 8 37 3/49 54 (1978) 0 (tie)
8 0 6 -6 12-49/49 65 (1983) 0 (tie)
7 0 17 -17 24-48/48 84 (1997) 0 (tie)
6 0 55 -55 33-50/50 268 (1973) 0 (tie)
5 135 167 -32 27/51 527 (1983) 0 (2004)
4 631 730 -99 31/51 1,602 (1975) 209 (1968)
3 1,709 1,918 -209 34/52 3,209 (1969) 906 (1968)
2 2,673 3,105 -432 41/52 4,910 (1978) 1,972 (1992)
1 3,918 3,535 383 13/51 4,678 (1985) 2,292 (1981)
 
2016 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 3,494 3,061 433 13/52 4,246 (2009) 1,242 (1980)
11 965 1,231 -266 34/52 2,268 (2014) 174 (1999)
10 58 186 -128 34/50 548 (2009) 0 (tie)
9 4 8 -4 17/49 54 (1978) 0 (tie)
8 0 6 -6 12-49/49 65 (1983) 0 (tie)
7 0 17 -17 24-48/48 84 (1997) 0 (tie)
6 0 55 -55 33-50/50 268 (1973) 0 (tie)
5 32 167 -135 45/51 527 (1983) 0 (2004)
4 612 730 -117 33/51 1,602 (1975) 209 (1968)
3 989 1,918 -929 51/52 3,209 (1969) 906 (1968)
2 2,722 3,105 -382 39/52 4,910 (1978) 1,972 (1992)
1 4,275 3,535 740 7/51 4,678 (1985) 2,292 (1981)
 
2015 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 3,103 3,061 42 23/52 4,246 (2009) 1,242 (1980)
11 1,417 1,231 185 19/52 2,268 (2014) 174 (1999)
10 31 186 -156 43/50 548 (2009) 0 (tie)
9 0 8 -8 18-49/49 54 (1978) 0 (tie)
8 0 6 -6 12-49/49 65 (1983) 0 (tie)
7 0 17 -17 24-48/48 84 (1997) 0 (tie)
6 0 55 -55 33-50/50 268 (1973) 0 (tie)
5 101 167 -66 33/51 527 (1983) 0 (2004)
4 417 730 -313 43/51 1,602 (1975) 209 (1968)
3 1,285 1,918 -633 47/52 3,209 (1969) 906 (1968)
2 3,340 3,105 235 21/52 4,910 (1978) 1,972 (1992)
1 3,340 3,535 -195 34/51 4,678 (1985) 2,292 (1981)

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Alaska
2018 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
3 1,534 1,486 49 2/52 1,534 (2008) 1,293 (1968)
2 1,534 1,515 20 1-5/52 1,534 (tie) 1,417 (1968)
1 1,534 1,495 39 1-4/52 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 3/52 1,534 (2012) 1,330 (1967)
11 1,429 1,406 23 22/52 1,500 (tie) 950 (1979)
10 947 889 58 19/50 1,228 (1971) 348 (1979)
9 206 194 12 21/49 417 (1996) 35 (1974)
8 88 55 33 16/49 546 (1967) 0 (tie)
7 92 74 18 18/48 445 (1967) 0 (tie)
6 305 329 -23 31/50 856 (1985) 37 (2015)
3 1,500 1,486 14 8-25/51 1,534 (2008) 1,293 (1968)
5 953 1,033 -80 34/51 1,486 (1985) 595 (2016)
4 1,500 1,423 77 1-13/51 1,500 (tie) 1,360 (2016)
3 1,500 1,486 14 9-26/52 1,534 (2008) 1,293 (1968)
2 1,500 1,515 -15 32-42/52 1,534 (tie) 1,417 (1968)
1 1,525 1,495 30 5/51 1,534 (tie) 1,423 (1986)
 
2016 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 1,529 1,480 48 2/52 1,534 (2012) 1,330 (1967)
11 1,424 1,406 18 23/52 1,500 (tie) 950 (1979)
10 648 889 -241 48/50 1,228 (1971) 348 (1979)
9 166 194 -29 28/49 417 (1996) 35 (1974)
8 27 55 -28 31/49 546 (1967) 0 (tie)
7 46 74 -28 32/48 445 (1967) 0 (tie)
6 157 329 -172 43/50 856 (1985) 37 (2015)
5 595 1,033 -438 51/51 1,486 (1985) 595 (2016)
4 1,360 1,423 -63 51/51 1,500 (tie) 1,360 (2016)
3 1,496 1,486 10 27/52 1,534 (2008) 1,293 (1968)
2 1,500 1,515 -15 32-42/52 1,534 (tie) 1,417 (1968)
1 1,490 1,495 -5 37/51 1,534 (tie) 1,423 (1986)
 
2015 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 1,501 1,480 20 6/52 1,534 (2012) 1,330 (1967)
11 1,399 1,406 -7 34/52 1,500 (tie) 950 (1979)
10 940 889 51 20/50 1,228 (1971) 348 (1979)
9 380 194 185 4/49 417 (1996) 35 (1974)
8 69 55 14 25/49 546 (1967) 0 (tie)
7 0 74 -74 46-48/48 445 (1967) 0 (tie)
6 37 329 -291 50/50 856 (1985) 37 (2015)
5 606 1,033 -428 50/51 1,486 (1985) 595 (2016)
4 1,419 1,423 -4 44/51 1,500 (tie) 1,360 (2016)
3 1,475 1,486 -11 37/52 1,534 (2008) 1,293 (1968)
2 1,487 1,515 -28 45/52 1,534 (tie) 1,417 (1968)
1 1,500 1,495 4 15-35/51 1,534 (tie) 1,423 (1986)


Alaska rankings were revised in June 2016.
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Note: Missing months are July 1968, June-Oct 1969, and July-Sep 1971.