Snjódýptarsummur í Reykjavík í öllum mánuðum ársins frá 1921. Um summurnar og veikleika þeirra má lesa í ritgerðinni: Langtímasveiflur 1. Snjóhula og snjókoma (Trausti Jónsson, Veðurstofa Íslands, 2002) Almanaksár er frá janúar til desember, en snjóárið frá 1. september til 31. ágúst (merkt á ártal síðara árs summunnar). ár jan feb mar apr maí jún júl ágú sept okt nóv des almanaksár snjóár 1921 82 523 102 0 0 0 0 0 41 54 128 1922 295 101 26 2 0 0 0 0 0 1 37 52 514 647 1923 190 3 8 2 10 0 0 0 0 0 40 115 368 303 1924 29 24 42 32 0 0 0 0 2 0 36 86 251 282 1925 57 545 26 61 0 0 0 0 0 0 11 2 702 813 1926 29 23 67 0 5 0 0 0 0 27 49 143 343 137 1927 244 92 2 1 3 0 0 0 0 1 9 75 427 561 1928 108 332 13 0 0 0 0 0 0 0 1 80 534 538 1929 0 4 1 0 0 0 0 0 0 17 126 70 218 86 1930 629 23 27 0 0 0 0 0 0 0 298 146 1123 892 1931 19 313 111 38 0 0 0 0 0 4 28 166 679 925 1932 602 0 13 4 0 0 0 0 0 0 23 101 743 817 1933 139 84 1 5 0 0 0 0 0 0 0 3 232 353 1934 320 22 277 9 0 0 0 0 0 1 27 15 671 631 1935 68 438 19 0 0 0 0 0 0 2 11 13 551 568 1936 61 1 39 0 0 0 0 0 0 0 7 50 158 127 1937 452 270 2 0 1 0 0 0 0 0 1 5 731 782 1938 72 259 12 15 0 0 0 0 0 3 69 20 450 364 1939 37 64 5 0 0 0 0 0 0 0 52 4 162 198 1940 0 142 34 25 0 0 0 0 0 0 74 5 280 257 1941 10 19 5 26 0 0 0 0 0 0 1 13 74 139 1942 85 31 0 7 0 0 0 0 0 0 8 36 167 137 1943 121 88 63 10 0 0 0 0 0 0 21 33 336 326 1944 184 21 19 1 1 0 0 0 0 0 48 74 348 280 1945 55 134 62 0 0 0 0 0 0 0 4 30 285 373 1946 21 3 8 29 0 0 0 0 0 0 8 2 71 95 1947 27 48 88 10 0 0 0 0 0 5 3 6 187 183 1948 128 38 33 7 0 0 0 0 0 0 6 11 223 220 1949 219 250 134 8 0 0 0 0 0 0 5 139 755 628 1950 6 53 3 8 0 0 0 0 0 0 2 1 73 214 1951 35 275 158 12 0 0 0 0 0 0 0 76 556 483 1952 156 329 44 0 0 0 0 0 0 0 5 0 534 605 1953 58 35 17 5 0 0 0 0 0 2 90 51 258 120 1954 40 108 125 5 0 0 0 0 6 2 66 101 453 421 1955 45 4 14 0 0 0 0 0 0 0 0 311 374 238 1956 45 41 26 1 0 0 0 0 0 18 20 25 176 424 1957 230 496 72 2 0 0 0 0 0 42 8 192 1042 863 1958 299 99 161 5 0 0 0 0 0 2 4 41 611 806 1959 77 77 94 11 0 0 0 0 0 1 83 34 377 306 1960 92 3 43 1 0 0 0 0 0 0 0 75 214 257 1961 2 48 77 25 0 0 0 0 0 0 8 75 235 227 1962 75 71 0 12 0 0 0 0 0 24 34 23 239 241 1963 34 5 1 5 1 0 0 0 0 0 53 10 109 127 1964 4 21 0 16 0 0 0 0 0 0 24 189 254 104 1965 56 0 0 0 0 0 0 0 0 0 8 25 89 269 1966 14 17 65 5 0 0 0 0 0 0 44 54 199 134 1967 27 2 157 0 0 0 0 0 0 6 27 53 272 284 1968 67 122 259 32 2 0 0 0 0 0 12 4 498 568 1969 11 24 80 4 0 0 0 0 8 17 27 143 314 135 1970 4 425 101 7 0 0 0 0 0 1 13 17 568 732 1971 115 35 1 3 0 0 0 0 0 0 21 130 305 185 1972 199 25 29 23 0 0 0 0 0 0 1 74 351 427 1973 20 67 81 48 2 0 0 0 0 0 0 84 302 293 1974 139 4 0 3 0 0 0 0 0 0 2 18 166 230 1975 13 43 8 18 0 0 0 0 0 0 26 129 237 102 1976 337 68 141 17 0 0 0 0 0 0 0 3 566 718 1977 34 0 0 42 0 0 0 0 0 0 18 64 158 79 1978 67 26 60 1 0 0 0 0 0 1 277 35 467 236 1979 356 117 181 4 2 0 0 0 0 0 157 175 992 973 1980 22 95 124 10 0 0 0 0 0 1 63 145 460 583 1981 100 103 42 2 0 0 0 0 0 8 84 32 371 456 1982 82 77 130 4 0 0 0 0 0 0 85 244 622 417 1983 283 33 137 34 0 0 0 0 0 1 138 146 772 816 1984 522 369 128 11 0 0 0 0 0 2 41 418 1491 1315 1985 9 39 51 5 0 0 0 0 0 0 22 19 145 565 1986 75 2 199 7 0 0 0 0 0 29 24 169 505 324 1987 55 4 84 46 17 0 0 0 0 2 0 0 208 428 1988 135 24 213 7 5 0 0 0 0 0 1 41 426 386 1989 276 417 479 117 0 0 0 0 0 12 0 31 1332 1331 1990 148 194 264 87 0 0 0 0 0 0 46 183 922 736 1991 103 16 28 20 0 0 0 0 0 0 69 75 311 396 1992 130 108 93 20 7 0 0 0 0 0 55 64 477 502 1993 640 51 124 7 24 0 0 0 0 0 87 205 1138 965 1994 106 118 271 35 0 0 0 0 0 1 42 125 698 822 1995 130 96 185 17 0 0 0 0 0 0 0 41 469 596 1996 25 168 30 30 0 0 0 0 0 10 50 66 379 294 1997 46 349 159 14 0 0 0 0 0 0 0 32 600 694 1998 13 113 45 0 0 0 0 0 0 0 2 26 199 203 1999 197 119 53 10 0 0 0 0 0 0 78 254 711 407 2000 127 455 322 3 0 0 0 0 0 0 0 44 951 1239 2001 2 33 35 16 0 0 0 0 0 0 71 180 337 130 2002 1 75 76 4 0 0 0 0 0 7 0 0 163 407 2003 16 24 17 0 0 0 0 0 0 0 47 78 182 64 2004 141 25 15 6 0 0 0 0 0 0 70 38 295 312 2005 207 70 0 14 0 0 0 0 0 19 18 8 336 399 2006 138 8 34 9 0 0 0 0 0 0 80 12 281 234 2007 203 33 68 0 0 0 0 0 0 3 0 76 383 396 2008 149 177 97 25 0 0 0 0 0 21 0 125 594 527 2009 75 125 21 0 0 0 0 0 0 5 3 20 249 367 2010 0 48 70 1 0 0 0 0 0 0 12 6 137 147 2011 5 97 139 2 21 0 0 0 0 0 39 4?? 282 Meðaltöl 1961 til 1990 og 1971 til 2000 m6190 123 110 83 15 1 0 0 0 0 3 38 77 443 444 m7100 146 111 123 22 2 0 0 0 0 2 48 104 559 555 Trausti Jónsson, Veðurstofa Íslands, 2011