World Monthly Surface Station Climatology
Station/Parameter Coverage by Decade
Area 1 - north america (12n-90n,40w-170w)
the following table indicates the data coverage by decade
explanation of symbols
recs - no. of logical records in the decade (station/years)
s - no.of stations in the decade
sslp - no.of stations in the decade with sea level pressures
mslp - no.of months of slp in the decade
sp - no.of stations in the decade with pressures
mp - no.of months of pressure in the decade
st - no. of stations in the decade with temperatures
mt - no.of months of temperature
sr - no. of stations in the decade with precipitation
mr - no.of months of precipitation
decade recs s sslp mslp sp mp st mt sr mr
2001-2004 1321 357 348 14055 167 5665 355 14439 350 14128
1991-2000 2951 379 376 30341 374 21265 378 31282 370 31053
1981-1990 2235 310 294 21572 294 21518 310 23919 308 23731
1971-1980 2075 232 191 19122 185 18093 231 23001 226 22243
1961-1970 4287 446 272 28357 216 23908 390 43173 439 49523
1951-1960 3958 409 223 25039 190 21924 363 40822 391 44718
1941-1950 2596 280 165 16818 147 15816 262 28257 271 29785
1931-1940 2127 230 95 9374 138 14734 206 22500 226 24723
1921-1930 1929 199 65 7290 121 13979 174 19880 196 22382
1911-1920 1708 179 35 3965 114 13108 154 17308 176 19776
1901-1910 1550 165 31 3449 106 11892 142 15520 161 17855
1891-1900 1232 137 25 2814 93 10007 122 12967 133 14137
1881-1890 1032 114 24 2623 75 7653 100 10338 110 11651
1871-1880 682 91 18 1220 53 3966 74 6070 84 7285
1861-1870 265 33 1 120 1 56 20 1924 28 2654
1851-1860 254 29 1 36 0 0 17 1610 23 2384
1841-1850 194 23 0 0 0 0 14 1335 17 1658
1831-1840 125 17 0 0 0 0 11 945 12 946
1821-1830 87 10 0 0 0 0 7 751 6 441
1811-1820 28 8 0 0 0 0 6 239 3 168
1801-1810 10 1 0 0 0 0 1 120 1 83
1791-1800 12 2 0 0 0 0 2 125 0 0
1781-1790 18 3 0 0 0 0 2 131 1 72
1771-1780 7 1 0 0 0 0 1 69 0 0
1761-1770 7 2 0 0 0 0 1 12 1 60
1751-1760 10 1 0 0 0 0 0 0 1 120
1741-1750 10 1 0 0 0 0 0 0 1 120
1731-1740 3 1 0 0 0 0 0 0 1 36
total data
coverage 30713 709 493 186195 478 203584 635 316737 694 341732
Area 2 - northern hemisphere , excluding north america
the following table indicates the data coverage by decade
explanation of symbols
recs - no. of logical records in the decade (station/years)
s - no.of stations in the decade
sslp - no.of stations in the decade with sea level pressures
mslp - no.of months of slp in the decade
sp - no.of stations in the decade with pressures
mp - no.of months of pressure in the decade
st - no. of stations in the decade with temperatures
mt - no.of months of temperature
sr - no. of stations in the decade with precipitation
mr - no.of months of precipitation
decade recs s sslp mslp sp mp st mt sr mr
2001-2004 5030 1430 1393 48387 1377 48068 1426 49898 1422 48899
1991-2000 11563 1682 1617 104452 1600 104223 1681 108082 1674 106696
1981-1990 8378 1063 988 77768 998 79018 1058 82381 1058 81328
1971-1980 9083 1207 1052 81177 1060 80806 1157 94020 1191 95790
1961-1970 12338 1340 1060 107000 375 38762 1291 134114 1329 139004
1951-1960 11072 1144 804 90581 650 71297 1069 121258 1134 128742
1941-1950 5461 632 328 31301 325 32064 470 46643 621 63342
1931-1940 5041 556 167 16830 222 23874 345 36545 550 58878
1921-1930 4195 462 123 14114 210 23479 287 31538 459 49190
1911-1920 3350 380 72 8092 185 20627 251 28394 349 35958
1901-1910 2915 337 65 6818 179 19432 235 25327 306 31145
1891-1900 2175 245 45 4619 146 16186 188 20530 217 22645
1881-1890 1708 191 22 2229 117 12043 154 16158 167 18094
1871-1880 1071 128 15 1560 63 5605 89 8192 119 11806
1861-1870 669 91 9 960 31 2729 50 4267 81 6884
1851-1860 432 51 7 756 18 1615 30 3062 42 4036
1841-1850 273 33 5 432 7 766 19 2118 24 2110
1831-1840 210 23 2 240 5 600 16 1793 13 1195
1821-1830 184 20 2 240 5 600 14 1584 10 974
1811-1820 162 18 2 240 5 479 13 1440 7 605
1801-1810 124 14 2 240 3 264 11 1186 4 420
1791-1800 113 12 2 240 2 240 10 1116 3 360
1781-1790 109 11 2 240 2 240 9 1079 3 300
1771-1780 68 9 3 252 2 240 7 684 1 120
1761-1770 39 6 2 132 2 156 5 379 1 82
1751-1760 15 2 1 72 1 72 2 180 0 0
total data
coverage 85778 2494 2215 598972 2140 583485 2453 821968 2482 908603
Area 3 - southern hemisphere plus 0-12n,40w-170w
the following table indicates the data coverage by decade
explanation of symbols
recs - no. of logical records in the decade (station/years)
s - no.of stations in the decade
sslp - no.of stations in the decade with sea level pressures
mslp - no.of months of slp in the decade
sp - no.of stations in the decade with pressures
mp - no.of months of pressure in the decade
st - no. of stations in the decade with temperatures
mt - no.of months of temperature
sr - no. of stations in the decade with precipitation
mr - no.of months of precipitation
decade recs s sslp mslp sp mp st mt sr mr
2001-2004 2415 715 671 19339 594 18614 703 20835 705 21001
1991-2000 5747 1084 1007 41967 872 41915 1050 44134 1054 43828
1981-1990 5702 1090 604 40516 667 42914 698 46539 1038 53493
1971-1980 8788 1094 578 43212 594 42909 654 49561 1071 94950
1961-1970 9623 1106 587 51296 337 31645 696 64082 1089 107136
1951-1960 9106 973 307 31903 313 31760 526 55086 943 105883
1941-1950 6659 727 112 11959 109 11944 256 27312 718 77900
1931-1940 6005 648 63 6628 74 8039 196 21079 642 70618
1921-1930 4139 451 48 5286 49 5391 96 10901 446 48567
1911-1920 3788 412 38 4271 46 5116 89 9768 407 44277
1901-1910 3326 366 31 3013 41 4297 77 7966 361 38765
1891-1900 2607 297 20 1873 25 2365 48 4625 294 30595
1881-1890 1754 217 14 1216 14 1133 30 2780 213 20091
1871-1880 879 127 9 1014 7 743 20 2058 123 9998
1861-1870 355 63 8 753 5 540 15 1437 61 3909
1851-1860 113 23 3 192 3 168 7 344 21 1159
1841-1850 62 7 1 117 0 0 1 119 6 598
1831-1840 5 4 0 0 0 0 0 0 4 53
total data
coverage 71073 2071 1334 264555 1208 249493 1558 368626 1975 772821