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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
2017 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
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 28/51 44,282 (1985) 37,122 (1990)
2 45,964 45,594 370 22/51 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 8/51 46,846 (2012) 37,441 (1980)
11 36,927 33,958 2,969 5/51 38,597 (1993) 28,279 (1979)
10 22,955 17,544 5,410 3/49 25,724 (1976) 12,781 (1988)
9 5,728 5,235 493 18/48 7,762 (1972) 3,838 (1990)
8 2,626 2,797 -171 29/48 5,308 (1967) 2,089 (1968)
7 2,554 3,665 -1,112 42/47 8,210 (1967) 2,325 (2012)
6 5,580 9,418 -3,838 47/49 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 50/51 44,282 (1985) 37,122 (1990)
2 43,509 45,594 -2,085 49/51 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 33/51 46,846 (2012) 37,441 (1980)
11 36,246 33,958 2,287 8/51 38,597 (1993) 28,279 (1979)
10 21,400 17,544 3,856 8/49 25,724 (1976) 12,781 (1988)
9 5,871 5,235 636 14/48 7,762 (1972) 3,838 (1990)
8 2,576 2,797 -221 35/48 5,308 (1967) 2,089 (1968)
7 2,520 3,665 -1,146 43/47 8,210 (1967) 2,325 (2012)
6 5,430 9,418 -3,987 48/49 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 44/51 44,282 (1985) 37,122 (1990)
2 44,988 45,594 -606 37/51 51,320 (1978) 42,667 (1995)
1 47,325 46,866 459 24/51 50,275 (2008) 41,890 (1981)
 
2014 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 43,648 43,981 -333 31/51 46,846 (2012) 37,441 (1980)
11 36,569 33,958 2,610 6/51 38,597 (1993) 28,279 (1979)
10 22,876 17,544 5,332 4/49 25,724 (1976) 12,781 (1988)
9 7,241 5,235 2,007 3/48 7,762 (1972) 3,838 (1990)
8 2,588 2,797 -209 34/48 5,308 (1967) 2,089 (1968)
7 2,873 3,665 -792 40/47 8,210 (1967) 2,325 (2012)
6 6,798 9,418 -2,619 42/49 14,972 (1978) 4,922 (2012)
5 17,011 19,019 -2,008 44/51 23,093 (1974) 15,377 (2010)
4 28,555 30,215 -1,660 45/51 34,606 (1979) 27,914 (2016)
3 38,413 40,130 -1,716 45/51 44,282 (1985) 37,122 (1990)
2 46,806 45,594 1,212 17/51 51,320 (1978) 42,667 (1995)
1 46,033 46,866 -832 42/51 50,275 (2008) 41,890 (1981)

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Eurasia
2017 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
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 27/51 27,950 (1981) 20,183 (2002)
2 29,262 28,479 783 19/51 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 12/51 29,699 (2002) 22,882 (1980)
11 24,034 20,474 3,560 2/51 24,132 (1993) 16,796 (1979)
10 13,484 9,497 3,987 3/49 17,218 (1976) 5,578 (1988)
9 1,690 1,526 163 20/48 3,409 (1977) 540 (1984)
8 190 375 -185 37/48 1,859 (1967) 82 (1968)
7 188 765 -577 41/47 3,551 (1967) 141 (2012)
6 1,269 3,609 -2,340 48/49 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 47/51 27,950 (1981) 20,183 (2002)
2 26,832 28,479 -1,647 48/51 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 31/51 29,699 (2002) 22,882 (1980)
11 22,548 20,474 2,204 8/51 24,132 (1993) 16,796 (1979)
10 12,672 9,497 3,175 7/49 17,218 (1976) 5,578 (1988)
9 1,718 1,526 192 18/48 3,409 (1977) 540 (1984)
8 150 375 -225 40/48 1,859 (1967) 82 (1968)
7 223 765 -542 39/47 3,551 (1967) 141 (2012)
6 1,350 3,609 -2,259 47/49 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 42/51 27,950 (1981) 21,183 (2002)
2 27,594 28,479 -885 42/51 32,285 (1978) 25,913 (2002)
1 29,957 29,322 634 20/51 32,265 (2008) 25,823 (1981)
 
2014 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 27,219 27,135 84 24/51 29,699 (2002) 22,882 (1980)
11 21,181 20,474 708 17/51 24,132 (1993) 16,796 (1979)
10 14,140 9,497 4,642 2/49 17,218 (1976) 5,578 (1988)
9 2,342 1,526 816 8/48 3,409 (1977) 540 (1984)
8 194 375 -181 35/48 1,859 (1967) 82 (1968)
7 186 765 -580 43/47 3,551 (1967) 141 (2012)
6 2,295 3,609 -1,314 40/49 7,129 (1978) 1,068 (2012)
5 8,264 9,723 -1,459 46/51 12,511 (1976) 7,262 (2013)
4 14,767 17,174 -2,407 51/51 20,687 (1981) 14,767 (2014)
3 22,214 24,492 -2,279 48/51 27,950 (1981) 21,183 (2002)
2 28,895 28,479 417 22/51 32,285 (1978) 25,913 (2002)
1 28,662 29,322 -660 41/51 32,265 (2008) 25,823 (1981)

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North America
2017 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
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 32/51 17,293 (1969) 14,041 (1968)
2 16,702 17,115 -413 37/51 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 11/51 18,273 (2009) 14,559 (1980)
11 12,893 13,485 -592 40/51 15,387 (2014) 11,483 (1979)
10 9,471 8,047 1,424 2/49 9,763 (2002) 6,364 (1979)
9 4,038 3,709 330 13/48 4,899 (2014) 2,892 (1968)
8 2,435 2,422 14 23/48 3,855 (1978) 2,007 (1968)
7 2,366 2,900 -534 42/47 5,073 (1978) 2,184 (2012)
6 4,311 5,809 -1,497 47/49 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 49/51 17,293 (1969) 14,041 (1968)
2 16,677 17,115 -438 39/51 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 23/51 18,273 (2009) 14,559 (1980)
11 13,697 13,485 213 19/51 15,387 (2014) 11,483 (1979)
10 8,728 8,047 681 12/49 9,763 (2002) 6,364 (1979)
9 4,153 3,709 444 8/48 4,899 (2014) 2,892 (1968)
8 2,426 2,422 4 24/48 3,855 (1978) 2,007 (1968)
7 2,296 2,900 -604 45/47 5,073 (1978) 2,184 (2012)
6 4,080 5,809 -1,728 48/49 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 41/51 17,293 (1969) 14,041 (1968)
2 17,394 17,115 279 20/51 19,035 (1978) 15,831 (1992)
1 17,368 17,543 -175 25/51 18,816 (1985) 16,067 (1981)
 
2014 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 16,429 16,846 -417 27/51 18,273 (2009) 14,559 (1980)
11 15,387 13,485 1,903 1/51 15,387 (2014) 11,483 (1979)
10 8,737 8,047 690 9/49 9,763 (2002) 6,364 (1979)
9 4,899 3,709 1,191 1/48 4,899 (2014) 2,892 (1968)
8 2,393 2,422 28 25/48 3,855 (1978) 2,007 (1968)
7 2,688 2,900 -213 32/47 5,073 (1978) 2,184 (2012)
6 4,503 5,809 -1,305 45/49 7,843 (1978) 3,854 (2012)
5 8,747 9,296 -549 39/51 11,478 (1974) 7,798 (2010)
4 13,788 13,041 747 14/51 15,077 (1975) 11,020 (2010)
3 16,200 15,638 562 16/51 17,293 (1969) 14,041 (1968)
2 17,911 17,115 795 9/51 19,035 (1978) 15,831 (1992)
1 17,371 17,543 -172 24/51 18,816 (1985) 16,067 (1981)

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Canada
2017 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
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 29/51 10,368 (1982) 9,486 (1981)
2 10,320 10,279 41 21/51 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 1/51 10,403 (2016) 9,691 (1980)
11 8,315 8,663 -348 38/51 9,672 (2013) 7,254 (1987)
10 6,578 4,774 1,804 1/49 6,578 (2016) 3,488 (1987)
9 1,683 1,395 288 14/48 2,490 (1972) 647 (1968)
8 388 375 12 22/48 1,569 (1978) 132 (2009)
7 317 772 -454 42/47 2,718 (1978) 143 (2012)
6 2,023 3,258 -1,235 47/49 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 41/51 10,368 (1982) 9,486 (1981)
2 10,245 10,279 -35 38/51 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 39/51 10,403 (2016) 9,691 (1980)
11 8,695 8,663 32 28/51 9,672 (2013) 7,254 (1987)
10 5,596 4,774 822 9/49 6,578 (2016) 3,488 (1987)
9 1,605 1,395 210 17/48 2,490 (1972) 647 (1968)
8 281 375 -94 33/48 1,569 (1978) 132 (2009)
7 247 772 -525 46/47 2,718 (1978) 143 (2012)
6 1,889 3,258 -1,370 48/49 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 30/51 10,368 (1982) 9,486 (1981)
2 10,351 10,279 72 15/51 10,424 (2013) 10,015 (1981)
1 10,324 10,294 30 22/51 10,424 (1982) 10,060 (1981)
 
2014 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 10,206 10,096 110 17/51 10,403 (2016) 9,691 (1980)
11 9,610 8,663 947 2/51 9,672 (2013) 7,254 (1987)
10 5,362 4,774 588 11/49 6,578 (2016) 3,488 (1987)
9 2,468 1,395 1,073 2/48 2,490 (1972) 647 (1968)
8 315 375 -60 30/48 1,569 (1978) 132 (2009)
7 637 772 -134 30/47 2,718 (1978) 143 (2012)
6 2,130 3,258 -1,129 45/49 4,899 (1978) 1,604 (2012)
5 5,801 5,905 -104 24/51 7,902 (1974) 4,762 (2010)
4 9,523 8,647 876 10/51 9,860 (1979) 6,939 (2010)
3 10,316 10,023 293 9/51 10,368 (1982) 9,486 (1981)
2 10,360 10,279 80 11-14/51 10,424 (2013) 10,015 (1981)
1 10,346 10,294 52 14/51 10,424 (1982) 10,060 (1981)
 

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Contiguous United States
2017 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
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 33/51 3,209 (1969) 906 (1968)
2 2,673 3,105 -432 40/51 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 13/51 4,246 (2009) 1,242 (1980)
11 965 1,231 -266 33/51 2,268 (2014) 174 (1999)
10 58 186 -128 33/49 548 (2009) 0 (tie)
9 4 8 -4 16/48 54 (1978) 0 (tie)
8 0 6 -6 12-48/48 65 (1983) 0 (tie)
7 0 17 -17 24-47/47 84 (1997) 0 (tie)
6 0 55 -55 33-49/49 268 (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 50/51 3,209 (1969) 906 (1968)
2 2,722 3,105 -382 38/51 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 23/51 4,246 (2009) 1,242 (1980)
11 1,417 1,231 185 19/51 2,268 (2014) 174 (1999)
10 31 186 -156 42/49 548 (2009) 0 (tie)
9 0 8 -8 18-48/48 54 (1978) 0 (tie)
8 0 6 -6 12-48/48 65 (1983) 0 (tie)
7 0 17 -17 24-47/47 84 (1997) 0 (tie)
6 0 55 -55 33-49/49 268 (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 46/51 3,209 (1969) 906 (1968)
2 3,340 3,105 235 20/51 4,910 (1978) 1,972 (1992)
1 3,340 3,535 -195 34/51 4,678 (1985) 2,292 (1981)
 
2014 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 2,541 3,061 -520 38/51 4,246 (2009) 1,242 (1980)
11 2,268 1,231 1,037 1/51 2,268 (2014) 174 (1999)
10 112 186 -74 23/49 548 (2009) 0 (tie)
9 0 8 -8 18-48/48 54 (1978) 0 (tie)
8 0 6 -6 12-48/48 65 (1983) 0 (tie)
7 0 17 -17 24-47/47 84 (1997) 0 (tie)
6 0 55 -55 33-49/49 268 (1973) 0 (tie)
5 129 167 -38 28/51 527 (1983) 0 (2004)
4 663 730 -67 26/51 1,602 (1975) 209 (1968)
3 2,188 1,918 270 22/51 3,209 (1969) 906 (1968)
2 3,836 3,105 731 9/51 4,910 (1978) 1,972 (1992)
1 3,323 3,535 -212 36/51 4,678 (1985) 2,292 (1981)

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Alaska
2017 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
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 8-25/51 1,534 (2008) 1,293 (1968)
2 1,500 1,515 -15 31-41/51 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 2/51 1,534 (2012) 1,330 (1967)
11 1,424 1,406 18 22/51 1,500 (tie) 950 (1979)
10 648 889 -241 47/49 1,228 (1971) 348 (1979)
9 166 194 -29 27/48 417 (1996) 35 (1974)
8 27 55 -28 30/48 546 (1967) 0 (tie)
7 46 74 -28 31/47 445 (1967) 0 (tie)
6 157 329 -172 42/49 856 (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 26/51 1,534 (2008) 1,293 (1968)
2 1,500 1,515 -15 31-41/51 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 5/51 1,534 (2012) 1,330 (1967)
11 1,399 1,406 -7 33/51 1,500 (tie) 950 (1979)
10 940 889 51 19/49 1,228 (1971) 348 (1979)
9 380 194 185 4/48 417 (1996) 35 (1974)
8 69 55 14 24/48 546 (1967) 0 (tie)
7 0 74 -74 44-47/47 445 (1967) 0 (tie)
6 37 329 -291 49/49 856 (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 36/51 1,534 (2008) 1,293 (1968)
2 1,487 1,515 -28 44/51 1,534 (tie) 1,417 (1968)
1 1,500 1,495 4 15-35/51 1,534 (tie) 1,423 (1986)
 
2014 1981-2010 Normal Period of Record from 11-1966
Month Area Mean Departure Rank Maximum (Year) Minimum (Year)
12 1,495 1,480 15 27/51 1,534 (2012) 1,330 (1967)
11 1,322 1,406 -84 48/51 1,500 (tie) 950 (1979)
10 1,052 889 163 9/49 1,228 (1971) 348 (1979)
9 262 194 68 12/48 417 (1996) 35 (1974)
8 42 -13 55 28/48 546 (1967) 0 (tie)
7 45 74 -29 32/47 445 (1967) 0 (tie)
6 199 329 -130 38/49 856 (1985) 37 (2015)
5 662 1,033 -372 49/51 1,486 (1985) 595 (2016)
4 1,415 1,423 -7 45/51 1,500 (tie) 1,360 (2016)
3 1,500 1,486 14 8-25/51 1,534 (2008) 1,293 (1968)
2 1,500 1,515 -15 31-41/51 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.