NAVIGATION

TABLE

VISIBLE SATELLITE

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

Northern Hemisphere 2020 1981-2010 Normal Period of Record from 11-1966 Month Area Mean Departure Rank Maximum (Year) Minimum (Year) 8 2,292 2,797 -505 50/52 5,308 (1967) 2,089 (1968) 7 2,406 3,665 -1,259 50/51 8,210 (1967) 2,325 (2012) 6 5,961 9,418 -3,457 49/53 14,972 (1978) 4,922 (2012) 5 16,659 19,019 -2,360 49/54 23,093 (1974) 15,377 (2010) 4 29,137 30,215 -1,078 42/54 34,606 (1979) 27,914 (2016) 3 37,714 40,130 -2,416 50/54 44,282 (1985) 37,122 (1990) 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 41/52 5,308 (1967) 2,089 (1968) 7 2,613 3,665 -1,052 44/51 8,210 (1967) 2,325 (2012) 6 5,936 9,418 -3,481 50/53 14,972 (1978) 4,922 (2012) 5 17,063 19,019 -1,956 44/54 23,093 (1974) 15,377 (2010) 4 29,060 30,215 -1,155 43/54 34,606 (1979) 27,914 (2016) 3 39,480 40,130 -650 37/54 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 27/52 5,308 (1967) 2,089 (1968) 7 3,008 3,665 -658 39/51 8,210 (1967) 2,325 (2012) 6 7,838 9,418 -1,580 41/53 14,972 (1978) 4,922 (2012) 5 18,259 19,019 -760 37/54 23,093 (1974) 15,377 (2010) 4 32,059 30,215 1,844 10/54 34,606 (1979) 27,914 (2016) 3 41,825 40,130 1,696 13/54 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 21/52 5,308 (1967) 2,089 (1968) 7 3,454 3,665 -212 28/51 8,210 (1967) 2,325 (2012) 6 9,274 9,418 -144 27/53 14,972 (1978) 4,922 (2012) 5 20,734 19,019 1,715 12/54 23,093 (1974) 15,377 (2010) 4 31,169 30,215 954 17/54 34,606 (1979) 27,914 (2016) 3 40,067 40,130 -62 29/54 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) 8 72 375 -303 52/52 1,859 (1967) 72 (2020) 7 141 765 -624 50-51/51 3,551 (1967) 141 (tie) 6 1,123 3,609 -2,486 52/53 7,129 (1978) 1,068 (2012) 5 7,574 9,723 -2,149 52/54 12,511 (1976) 7,262 (2013) 4 15,199 17,174 -1,975 52/54 20,687 (1981) 14,767 (2014) 3 22,096 24,492 -2,396 51/54 27,950 (1981) 20,183 (2002) 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 40/52 1,859 (1967) 72 (2020) 7 315 765 -450 38/51 3,551 (1967) 141 (2012) 6 1,742 3,609 -1,867 46/53 7,129 (1978) 1,068 (2012) 5 8,503 9,723 -1,459 46/54 12,511 (1976) 7,262 (2013) 4 16,301 17,174 -873 41/54 20,687 (1981) 14,767 (2014) 3 22,898 24,492 -1,594 47/54 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 45/52 1,859 (1967) 72 (2020) 7 206 765 -559 42/51 3,551 (1967) 141 (2012) 6 2,532 3,609 -1,512 41/53 7,129 (1978) 1,068 (2012) 5 9,307 9,723 -582 34/54 12,511 (1976) 7,262 (2013) 4 17,257 17,174 83 26/54 20,687 (1981) 14,767 (2014) 3 25,041 24,492 549 22/54 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 28/52 1,859 (1967) 72 (2020) 7 387 765 -379 36/51 3,551 (1967) 141 (2012) 6 4,220 3,609 611 20/53 7,129 (1978) 1,068 (2012) 5 10,975 9,723 1,252 12/54 12,511 (1976) 7,262 (2013) 4 17,587 17,174 414 21/54 20,687 (1981) 14,767 (2014) 3 24,558 24,492 66 28/54 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) 8 2,220 2,422 -201 42/52 3,855 (1978) 2,007 (1968) 7 2,265 2,900 -635 50/51 5,073 (1978) 2,184 (2012) 6 4,838 5,809 -971 43/53 7,843 (1978) 3,854 (2012) 5 9,084 9,296 -212 28/54 11,478 (1974) 7,798 (2010) 4 13,938 13,041 897 14/54 15,077 (1975) 11,020 (2010) 3 15,618 15,638 -19 32/54 17,293 (1969) 14,041 (1968) 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 34/52 3,855 (1978) 2,007 (1968) 7 2,298 2,900 -602 47/51 5,073 (1978) 2,184 (2012) 6 4,194 5,809 -1,615 51/53 7,843 (1978) 3,854 (2012) 5 8,560 9,296 -736 47/54 11,478 (1974) 7,798 (2010) 4 12,759 13,041 -283 36/54 15,077 (1975) 11,020 (2010) 3 16,582 15,638 944 9/54 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 17/52 3,855 (1978) 2,007 (1968) 7 2,801 2,900 -99 29/51 5,073 (1978) 2,184 (2012) 6 5,306 5,809 -503 36/53 7,843 (1978) 3,854 (2012) 5 8,951 9,296 -345 34/54 11,478 (1974) 7,798 (2010) 4 14,803 13,041 1,761 4/54 15,077 (1975) 11,020 (2010) 3 16,784 15,638 1,146 5/54 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 14/52 3,855 (1978) 2,007 (1968) 7 3,067 2,900 167 19/51 5,073 (1978) 2,184 (2012) 6 5,054 5,809 -754 41/53 7,843 (1978) 3,854 (2012) 5 9,759 9,296 463 18/54 11,478 (1974) 7,798 (2010) 4 13,582 13,041 540 23/54 15,077 (1975) 11,020 (2010) 3 15,510 15,638 -128 35/54 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) 8 202 375 -174 45/52 1,569 (1978) 132 (2009) 7 190 772 -582 50/51 2,718 (1978) 143 (2012) 6 2,577 3,258 -681 43/53 4,899 (1978) 1,604 (2012) 5 6,246 5,905 341 17/54 7,902 (1974) 4,762 (2010) 4 9,432 8,647 784 15/54 9,860 (1979) 6,939 (2010) 3 10,208 10,023 185 19/54 10,368 (1982) 9,486 (1981) 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 31/52 1,569 (1978) 132 (2009) 7 226 772 -546 49/51 2,718 (1978) 143 (2012) 6 1,933 3,258 -1,326 51/53 4,899 (1978) 1,604 (2012) 5 5,526 5,905 -379 40/54 7,902 (1974) 4,762 (2010) 4 8,364 8,647 -284 40/54 9,860 (1979) 6,939 (2010) 3 10,102 10,023 78 31/54 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 22/52 1,569 (1978) 132 (2009) 7 616 772 -156 32/51 2,718 (1978) 143 (2012) 6 2,852 3,258 -407 35/53 4,899 (1978) 1,604 (2012) 5 5,715 5,905 -190 28/54 7,902 (1974) 4,762 (2010) 4 9,745 8,647 1,097 4/54 9,860 (1979) 6,939 (2010) 3 10,312 10,023 289 11/54 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 19/52 1,569 (1978) 132 (2009) 7 863 772 91 19/51 2,718 (1978) 143 (2012) 6 2,599 3,258 -659 41/53 4,899 (1978) 1,604 (2012) 5 6,495 5,905 590 11/54 7,902 (1974) 4,762 (2010) 4 9,265 8,647 617 20/54 9,860 (1979) 6,939 (2010) 3 10,101 10,023 78 32/54 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) 8 0 6 -6 12-52/52 65 (1983) 0 (tie) 7 0 17 -17 24-51/51 84 (1997) 0 (tie) 6 7 55 -48 31/53 268 (1973) 0 (tie) 5 24 167 -143 51/54 527 (1983) 0 (2004) 4 813 730 83 22/54 1,602 (1975) 209 (1968) 3 1,655 1,918 -264 37/54 3,209 (1969) 906 (1968) 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 12-52/52 65 (1983) 0 (tie) 7 0 17 -17 24-51/51 84 (1997) 0 (tie) 6 7 55 -48 33/53 268 (1973) 0 (tie) 5 48 167 -119 41/54 527 (1983) 0 (2004) 4 784 730 54 23/54 1,602 (1975) 209 (1968) 3 2,750 1,918 832 6/54 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 12-52/52 65 (1983) 0 (tie) 7 0 17 -17 24-51/51 84 (1997) 0 (tie) 6 0 55 -55 35-53/53 268 (1973) 0 (tie) 5 83 167 -83 37/54 527 (1983) 0 (2004) 4 1,316 730 587 5/54 1,602 (1975) 209 (1968) 3 2,705 1,918 787 7/54 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 12-52/52 65 (1983) 0 (tie) 7 0 17 -17 24-51/51 84 (1997) 0 (tie) 6 0 55 -55 35-53/53 268 (1973) 0 (tie) 5 135 167 -32 27/54 527 (1983) 0 (2004) 4 631 730 -99 34/54 1,602 (1975) 209 (1968) 3 1,709 1,918 -209 35/54 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) 8 0 55 -55 42-52/52 546 (1967) 0 (tie) 7 32 74 -42 41/51 445 (1967) 0 (tie) 6 145 329 -184 48/53 856 (1985) 37 (2015) 5 655 1,033 -378 52/54 1,486 (1985) 595 (2016) 4 1,473 1,423 50 24/54 1,526 (2018) 1,360 (2016) 3 1,534 1,486 49 1-3/54 1,534 (2008) 1,293 (1968) 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 42-52/52 546 (1967) 0 (tie) 7 1 74 -73 48/51 445 (1967) 0 (tie) 6 123 329 -206 51/53 856 (1985) 37 (2015) 5 836 1,033 -198 43/54 1,486 (1985) 595 (2016) 4 1,452 1,423 29 36/54 1,526 (2018) 1,360 (2016) 3 1,513 1,486 27 4/54 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 29/52 546 (1967) 0 (tie) 7 41 74 -33 34/51 445 (1967) 0 (tie) 6 305 329 -24 32/53 856 (1985) 37 (2015) 5 987 1,033 -47 33/54 1,486 (1985) 595 (2016) 4 1,526 1,423 104 1/54 1,526 (2018) 1,360 (2016) 3 1,534 1,486 49 1-3/54 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 16/52 546 (1967) 0 (tie) 7 92 74 18 18/51 445 (1967) 0 (tie) 6 305 329 -23 31/53 856 (1985) 37 (2015) 5 953 1,033 -80 35/54 1,486 (1985) 595 (2016) 4 1,500 1,423 77 2-14/54 1,526 (2018) 1,360 (2016) 3 1,500 1,486 14 11-28/54 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.