NAVIGATION
TABLE
VISIBLE SATELLITE
Monthly Snow Area Rankings
| Select a Region | ||
| 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) |
| 12 | 43,699 | 43,981 | -282 | 32/55 | 46,846 (2012) | 37,441 (1980) |
| 11 | 35,973 | 33,958 | 2,014 | 12/55 | 38,597 (1993) | 28,279 (1979) |
| 10 | 21,220 | 17,544 | 3,676 | 10/53 | 25,724 (1976) | 12,781 (1988) |
| 9 | 4,505 | 5,235 | -730 | 42/52 | 7,762 (1972) | 3,838 (1990) |
| 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 | 37/55 | 46,846 (2012) | 37,441 (1980) |
| 11 | 37,060 | 33,958 | 3,102 | 5/55 | 38,597 (1993) | 28,279 (1979) |
| 10 | 22,256 | 17,544 | 4,712 | 5/53 | 25,724 (1976) | 12,781 (1988) |
| 9 | 5,145 | 5,235 | -90 | 32/52 | 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 | 15/55 | 46,846 (2012) | 37,441 (1980) |
| 11 | 37,774 | 33,958 | 3,815 | 3/55 | 38,597 (1993) | 28,279 (1979) |
| 10 | 20,058 | 17,544 | 2,514 | 16/53 | 25,724 (1976) | 12,781 (1988) |
| 9 | 6,365 | 5,235 | 1,131 | 9/52 | 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 | 35/55 | 46,846 (2012) | 37,441 (1980) |
| 11 | 35,975 | 33,958 | 2,017 | 11/55 | 38,597 (1993) | 28,279 (1979) |
| 10 | 21,167 | 17,544 | 3,623 | 11/53 | 25,724 (1976) | 12,781 (1988) |
| 9 | 6,151 | 5,235 | 916 | 11/52 | 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) |
| Eurasia | ||||||
| 2020 | 1981-2010 Normal | Period of Record from 11-1966 | ||||
| Month | Area | Mean | Departure | Rank | Maximum (Year) | Minimum (Year) |
| 12 | 27,203 | 27,135 | 69 | 26/55 | 29,699 (2002) | 22,882 (1980) |
| 11 | 21,592 | 20,474 | 1,119 | 17/55 | 24,132 (1993) | 16,796 (1979) |
| 10 | 10,957 | 9,497 | 1,459 | 19/53 | 17,218 (1976) | 5,578 (1988) |
| 9 | 582 | 1,526 | -944 | 50/52 | 3,409 (1977) | 540 (1984) |
| 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 | 43/55 | 29,699 (2002) | 22,882 (1980) |
| 11 | 21,974 | 20,474 | 1,501 | 14/55 | 24,132 (1993) | 16,796 (1979) |
| 10 | 12,768 | 9,497 | 3,270 | 7/53 | 17,218 (1976) | 5,578 (1988) |
| 9 | 1,574 | 1,526 | 48 | 27/52 | 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 | 16/55 | 29,699 (2002) | 22,882 (1980) |
| 11 | 22,053 | 20,474 | 1,580 | 13/55 | 24,132 (1993) | 16,796 (1979) |
| 10 | 10,391 | 9,497 | 894 | 24/53 | 17,218 (1976) | 5,578 (1988) |
| 9 | 1,300 | 1,526 | -226 | 34/52 | 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 | 33/55 | 29,699 (2002) | 22,882 (1980) |
| 11 | 21,292 | 20,474 | 818 | 20/55 | 24,132 (1993) | 16,796 (1979) |
| 10 | 12,052 | 9,497 | 2,554 | 12/53 | 17,218 (1976) | 5,578 (1988) |
| 9 | 2,142 | 1,526 | 616 | 12/52 | 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) |
| North America | ||||||
| 2020 | 1981-2010 Normal | Period of Record from 11-1966 | ||||
| Month | Area | Mean | Departure | Rank | Maximum (Year) | Minimum (Year) |
| 12 | 16,496 | 16,846 | -351 | 37/55 | 18,273 (2009) | 14,559 (1980) |
| 11 | 14,380 | 13,485 | 896 | 13/55 | 15,720 (2018) | 11,483 (1979) |
| 10 | 10,263 | 8,047 | 2,216 | 1/53 | 10,263 (2020) | 6,364 (1979) |
| 9 | 3,923 | 3,709 | 214 | 22/52 | 5,065 (2018) | 2,892 (1968) |
| 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 | 18/55 | 18,273 (2009) | 14,559 (1980) |
| 11 | 15,086 | 13,485 | 1,601 | 3/55 | 15,720 (2018) | 11,483 (1979) |
| 10 | 9,488 | 8,047 | 1,441 | 4/53 | 10,263 (2020) | 6,364 (1979) |
| 9 | 3,570 | 3,709 | -138 | 37/52 | 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 | 22/55 | 18,273 (2009) | 14,559 (1980) |
| 11 | 15,720 | 13,485 | 2,236 | 1/55 | 15,720 (2018) | 11,483 (1979) |
| 10 | 9,667 | 8,047 | 1,620 | 3/53 | 10,263 (2020) | 6,364 (1979) |
| 9 | 5,065 | 3,709 | 1,357 | 1/52 | 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 | 26/55 | 18,273 (2009) | 14,559 (1980) |
| 11 | 14,683 | 13,485 | 1,198 | 9/55 | 15,720 (2018) | 11,483 (1979) |
| 10 | 9,115 | 8,047 | 1,068 | 10/53 | 10,263 (2020) | 6,364 (1979) |
| 9 | 4,009 | 3,709 | 300 | 16/52 | 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) |
| Canada | ||||||
| 2020 | 1981-2010 Normal | Period of Record from 11-1966 | ||||
| Month | Area | Mean | Departure | Rank | Maximum (Year) | Minimum (Year) |
| 12 | 10,209 | 10,096 | 113 | 20/55 | 10,403 (2016) | 9,691 (1980) |
| 11 | 9,545 | 8,663 | 882 | 7/55 | 9,978 (2018) | 7,254 (1987) |
| 10 | 6,524 | 4,774 | 1,750 | 3/53 | 6,708 (2018) | 3,488 (1987) |
| 9 | 1,606 | 1,395 | 211 | 19/52 | 2,812 (2018) | 647 (1968) |
| 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 | 12/55 | 10,403 (2016) | 9,691 (1980) |
| 11 | 9,836 | 8,663 | 1,173 | 3/55 | 9,978 (2018) | 7,254 (1987) |
| 10 | 5,849 | 4,774 | 1,075 | 8/53 | 6,708 (2018) | 3,488 (1987) |
| 9 | 1,234 | 1,395 | -161 | 39/52 | 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 | 13/55 | 10,403 (2016) | 9,691 (1980) |
| 11 | 9,978 | 8,663 | 1,315 | 1/55 | 9,978 (2018) | 7,254 (1987) |
| 10 | 6,708 | 4,774 | 1,934 | 1/53 | 6,708 (2018) | 3,488 (1987) |
| 9 | 2,812 | 1,395 | 1,417 | 1/52 | 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 | 17/55 | 10,403 (2016) | 9,691 (1980) |
| 11 | 9,917 | 8,663 | 1,254 | 2/55 | 9,978 (2018) | 7,254 (1987) |
| 10 | 5,808 | 4,774 | 1,034 | 9/53 | 6,708 (2018) | 3,488 (1987) |
| 9 | 1,607 | 1,395 | 212 | 18/52 | 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) |
| Contiguous United States | ||||||
| 2020 | 1981-2010 Normal | Period of Record from 11-1966 | ||||
| Month | Area | Mean | Departure | Rank | Maximum (Year) | Minimum (Year) |
| 12 | 2,525 | 3,061 | -536 | 42/55 | 4,246 (2009) | 1,242 (1980) |
| 11 | 1,150 | 1,231 | -82 | 25/55 | 2,268 (2014) | 174 (1999) |
| 10 | 790 | 186 | 604 | 1/53 | 790 (2020) | 0 (tie) |
| 9 | 0 | 8 | -8 | 20-52/52 | 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 | 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 | 20/55 | 4,246 (2009) | 1,242 (1980) |
| 11 | 1,644 | 1,231 | 413 | 11/55 | 2,268 (2014) | 174 (1999) |
| 10 | 491 | 186 | 305 | 4/53 | 790 (2020) | 0 (tie) |
| 9 | 72 | 8 | 64 | 1/52 | 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 | 26/55 | 4,246 (2009) | 1,242 (1980) |
| 11 | 2,153 | 1,231 | 921 | 3/55 | 2,268 (2014) | 174 (1999) |
| 10 | 177 | 186 | -9 | 20/53 | 790 (2020) | 0 (tie) |
| 9 | 0 | 8 | -8 | 20-52/52 | 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 | 35/55 | 4,246 (2009) | 1,242 (1980) |
| 11 | 1,150 | 1,231 | -81 | 24/55 | 2,268 (2014) | 174 (1999) |
| 10 | 184 | 186 | -2 | 19/53 | 790 (2020) | 0 (tie) |
| 9 | 45 | 8 | 37 | 4/52 | 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) |
| Alaska | ||||||
| 2020 | 1981-2010 Normal | Period of Record from 11-1966 | ||||
| Month | Area | Mean | Departure | Rank | Maximum (Year) | Minimum (Year) |
| 12 | 1,534 | 1,480 | 54 | 1-2/55 | 1,534 (tie) | 1,330 (1967) |
| 11 | 1,475 | 1,406 | 69 | 7/55 | 1,500 (tie) | 950 (1979) |
| 10 | 755 | 889 | -134 | 42/53 | 1,228 (1971) | 348 (1979) |
| 9 | 140 | 194 | -54 | 34/52 | 417 (1996) | 35 (1974) |
| 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 | 8-25/55 | 1,534 (tie) | 1,330 (1967) |
| 11 | 1,419 | 1,406 | 13 | 28/55 | 1,500 (tie) | 950 (1979) |
| 10 | 953 | 889 | 64 | 18/53 | 1,228 (1971) | 348 (1979) |
| 9 | 106 | 194 | -88 | 43/52 | 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 | 8-25/55 | 1,534 (tie) | 1,330 (1967) |
| 11 | 1,403 | 1,406 | -3 | 35/55 | 1,500 (tie) | 950 (1979) |
| 10 | 596 | 889 | -293 | 51/53 | 1,228 (1971) | 348 (1979) |
| 9 | 82 | 194 | -113 | 46/52 | 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 | 4/55 | 1,534 (tie) | 1,330 (1967) |
| 11 | 1,429 | 1,406 | 23 | 23/55 | 1,500 (tie) | 950 (1979) |
| 10 | 947 | 889 | 58 | 20/53 | 1,228 (1971) | 348 (1979) |
| 9 | 206 | 194 | 12 | 21/52 | 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) |
Note: Missing months are July 1968, June-Oct 1969, and July-Sep 1971.