ABERDEEN RGNL AP, SOUTH DAKOTA

Monthly Total Heating Degree Days

(390020)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201303
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
Months with 5 missing days or less use mean for missing day(s)
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1893 1840.50 1581.00 1416.00 775.00 344.00 23.00 6.50 46.00 438.00 619.50 1128.00 1503.50 9721.00
1894 0.00 z 0.00 z 995.00 567.50 0.00 z 0.00 z 1.00 10.00 371.00 604.00 1027.50 1061.00 4637.00
1895 2055.09 b 1606.50 1164.50 362.50 247.00 99.00 40.50 36.50 204.00 689.00 1227.00 1409.50 9141.09
1896 1686.00 1298.00 1464.00 654.00 290.00 64.50 12.50 36.50 276.50 602.00 1660.00 1462.50 9506.50
1897 1834.00 1564.50 1548.00 652.00 286.50 93.21 b 13.00 69.50 68.00 553.00 1139.00 1743.75 a 9564.46
1898 1422.50 1289.00 1165.00 620.50 343.00 55.50 2.58 a 9.50 215.50 766.50 1208.50 1560.50 8658.58
1899 1667.50 1688.50 1654.00 631.50 325.00 16.50 0.00 13.50 248.50 730.50 892.50 1491.50 9359.50
1900 1438.00 1597.50 1165.00 445.00 147.00 60.00 0.00 a 11.50 183.00 674.50 1241.00 1399.50 8362.00
1901 1600.00 1490.50 1167.67 a 582.50 178.00 98.50 7.00 3.00 293.00 546.50 1143.00 1682.00 8791.67
1902 1550.50 1469.50 1071.00 632.50 202.50 144.00 14.50 41.50 289.50 587.00 485.00 m 1761.50 7764.00
1903 1662.63 a 1649.00 1102.50 624.00 179.50 42.00 17.00 42.00 241.55 a 418.50 a 1059.00 1541.50 8579.19
1904 1836.00 1815.50 1238.50 726.00 249.50 83.50 27.00 61.50 216.00 440.00 816.50 1490.58 a 9000.58
1905 1815.50 1525.00 836.50 630.00 374.50 117.00 30.00 7.00 127.00 731.00 866.50 1516.50 8576.50
1906 1503.50 a 1372.00 1308.00 475.00 335.50 74.50 11.50 45.00 114.50 569.22 b 512.00 n 1623.50 7432.22
1907 2037.22 a 1435.00 1040.00 818.50 569.00 100.50 5.50 34.00 306.00 594.00 984.50 1317.00 9241.22
1908 1419.00 1402.88 a 1146.50 544.00 336.50 95.00 17.50 74.00 141.50 623.62 a 898.00 1545.50 8243.99
1909 1753.50 1459.11 a 1103.71 b 0.00 z 403.55 c 58.00 22.00 16.50 195.00 624.50 1079.00 1807.82 a 8522.69
1910 1738.00 1690.50 655.50 457.50 d 402.50 102.50 9.00 52.50 255.50 389.50 0.00 z 1533.00 7286.00
1911 1879.50 1448.50 943.00 628.50 242.00 22.00 33.87 d 114.50 k 218.00 665.00 1397.50 1535.00 9012.87
1912 2170.00 1469.68 a 1336.50 497.00 207.50 116.00 n 18.50 27.50 367.50 537.00 861.21 a 1401.72 a 8894.10
1913 1741.68 a 1428.00 a 1329.90 a 460.50 381.00 51.50 8.00 0.00 203.28 a 704.73 a 824.00 1214.00 8346.59
1914 1494.50 1676.50 1068.00 590.50 261.50 39.00 0.50 75.50 140.00 441.50 907.00 1721.00 8415.50
1915 1795.00 1284.00 1328.50 357.50 406.50 175.00 97.50 89.50 246.00 481.50 870.50 1378.00 8509.50
1916 2056.69 b 1556.50 1118.14 b 637.00 319.00 152.50 0.50 87.00 272.50 670.38 c 1022.50 1851.73 a 9744.44
1917 1880.00 1729.50 1263.50 757.00 367.50 142.50 22.50 72.50 255.00 858.00 829.50 1848.12 a 10025.62
1918 1939.00 1465.50 889.50 701.50 293.00 73.50 29.00 16.00 319.50 454.84 b 982.00 1347.50 8510.84
1919 1259.12 a 1413.50 1183.50 568.00 261.50 96.00 0.50 8.00 146.00 782.50 1245.00 c 1584.50 8548.12
1920 1673.50 1294.00 1129.00 826.50 252.65 a 91.50 6.00 25.50 135.00 378.95 b 1014.50 1358.50 8185.60
1921 1326.50 1107.00 1002.50 504.50 236.50 33.00 9.00 15.50 150.00 473.50 1259.00 1321.50 7438.50
1922 1657.00 1682.00 1044.00 510.00 142.50 13.00 9.50 8.50 121.00 435.50 928.50 1547.00 8098.50
1923 1487.00 1527.50 1222.50 632.50 254.50 47.50 0.00 43.00 98.00 549.00 729.00 1163.02 a 7753.52
1924 1739.62 a 1191.00 1125.00 612.50 435.00 123.00 13.50 23.00 215.00 323.00 943.00 1747.50 8491.12
1925 1656.50 1202.00 884.02 a 382.00 309.50 74.50 18.50 2.50 120.50 914.00 961.50 1397.58 a 7923.10
1926 1414.50 1054.00 1096.50 557.00 125.50 77.00 2.50 12.50 261.50 479.98 a 1132.50 1506.00 7719.48
1927 1555.00 1209.00 929.00 577.00 377.50 113.50 9.76 d 29.00 214.00 447.00 939.50 f 1943.38 b 7404.14
1928 1491.21 b 1252.70 a 944.47 a 717.50 121.42 a 65.00 0.00 25.50 228.00 549.00 920.00 1231.50 7546.29
1929 1912.70 a 1605.50 927.50 565.00 355.50 65.00 1.00 2.00 297.50 497.00 0.00 z 1426.00 7654.70
1930 1880.00 981.50 1040.00 445.50 319.00 36.00 0.00 c 2.00 175.50 578.00 936.50 1216.50 7610.50
1931 1203.50 944.50 1017.50 486.50 292.50 15.00 0.00 18.50 93.00 381.50 919.00 1344.00 6715.50
1932 1661.50 1391.48 a 1244.50 463.00 175.00 3.50 8.00 3.00 129.50 623.00 1028.00 1513.50 8243.98
1933 1401.00 1414.50 979.00 569.50 242.32 a 7.50 0.00 11.50 72.50 583.50 936.50 1571.70 a 7789.52
1934 1381.00 1158.00 1075.00 574.00 90.00 7.50 3.50 30.00 267.00 377.50 849.83 a 1499.00 7312.33
1935 1676.50 971.50 955.00 660.50 346.50 80.00 0.00 52.18 a 113.79 a 591.50 1238.50 1520.55 a 8206.53
1936 2108.50 2097.50 1023.50 731.00 132.00 42.50 0.00 4.00 109.00 593.00 1090.86 a 1386.45 b 9318.31
1937 2115.00 1531.50 1140.00 650.50 158.62 a 73.00 2.50 0.00 182.00 563.00 1095.00 1538.00 9049.12
1938 1724.00 1488.00 873.54 c 546.50 313.00 58.97 a 0.00 a 5.50 122.59 a 341.50 1140.50 1369.50 7983.59
1939 1514.00 1731.00 1080.50 636.00 110.10 b 61.00 0.00 a 13.50 g 218.50 582.50 885.00 1183.50 8002.10
1940 1920.50 1412.50 1199.50 714.00 282.50 79.50 9.50 42.50 149.00 386.00 1179.00 1197.08 e 8571.58
1941 1642.50 1435.50 1167.50 510.00 171.00 102.86 b 28.00 23.50 219.00 552.00 970.50 1255.00 8077.36
1942 1387.50 1316.00 986.50 493.97 a 413.50 103.00 20.00 25.00 348.50 525.50 967.00 1530.00 8116.47
1943 1933.50 1277.00 1277.00 461.50 353.00 109.50 0.50 16.50 215.00 422.50 1013.00 1261.00 8340.00
1944 1240.50 1445.00 1304.50 677.50 166.50 73.50 10.00 33.50 168.50 451.50 966.50 1380.50 7918.00
1945 1518.00 1315.00 857.50 667.50 415.50 201.50 31.00 2.00 263.00 525.50 1077.50 1667.00 8541.00
1946 1586.50 1358.50 749.00 392.00 363.00 80.50 0.00 50.50 215.50 624.00 1040.50 1393.50 7853.50
1947 1318.00 1400.50 1155.50 691.50 381.00 86.50 7.00 10.00 199.50 299.00 1192.50 1554.50 8295.50
1948 1773.00 1601.73 a 1297.00 496.50 285.50 94.00 5.00 20.00 104.50 551.00 984.50 1530.50 8743.23
1949 1825.00 1609.50 1143.50 539.50 230.00 46.50 12.50 25.50 272.00 588.50 811.50 1577.50 8681.50
1950 2109.00 1492.50 1269.50 871.50 399.00 87.00 34.00 67.50 218.50 508.00 1231.00 1605.50 9893.00
1951 1876.50 1289.50 1524.50 704.50 240.00 185.00 33.50 58.00 306.50 649.50 1170.50 1799.00 9837.00
1952 1867.50 1385.50 1428.58 a 538.00 297.00 38.50 9.00 31.50 163.00 688.00 1003.00 1386.00 8835.58
1953 1599.50 1295.00 1088.00 783.50 347.00 82.50 17.00 7.00 198.50 388.50 890.50 1419.00 8116.00
1954 1883.50 864.00 1211.00 604.29 b 443.00 102.00 7.00 12.00 200.50 610.50 842.50 1392.00 8172.29
1955 1583.00 1564.00 1227.50 396.00 165.00 92.00 0.50 12.00 216.50 522.50 1356.00 1805.00 8940.00
1956 1757.50 1685.50 1259.50 827.00 295.00 14.00 11.00 31.00 247.50 445.00 1037.50 1344.00 8954.50
1957 1861.00 1345.50 1103.50 649.50 350.50 81.00 0.00 33.00 249.50 562.00 1014.00 1235.00 8484.50
1958 1435.00 1446.00 1070.50 627.00 220.00 188.50 33.00 40.00 172.00 518.00 985.00 1611.00 8346.00
1959 1813.00 1590.50 979.50 629.50 341.50 51.00 8.50 5.50 227.00 723.00 1285.50 1167.00 8821.50
1960 1686.00 1567.00 1540.00 637.00 297.00 84.50 14.50 41.50 313.50 561.00 1060.50 1556.50 9359.00
1961 1656.00 1368.50 938.50 793.00 388.00 59.00 4.00 2.50 337.00 521.00 1029.50 1716.00 8813.00
1962 1741.50 1505.50 1334.00 609.00 204.50 51.00 35.00 18.00 242.50 476.00 900.50 1419.00 8536.50
1963 1924.00 1346.50 887.50 599.00 301.50 31.50 0.00 22.00 114.50 304.00 941.00 1724.50 8196.00
1964 1512.50 1180.00 1304.00 560.00 240.50 69.00 2.50 80.00 279.00 569.00 1144.00 1793.50 8734.00
1965 1952.00 1506.50 1419.00 640.50 284.00 54.50 5.50 39.00 463.50 459.00 1076.00 1227.00 9126.50
1966 2016.00 1562.50 960.00 783.00 362.50 71.00 0.00 63.00 218.00 568.50 1185.50 1416.00 9206.00
1967 1548.00 1494.00 989.50 653.50 403.00 59.00 38.00 40.50 141.00 581.50 1014.00 1506.00 8468.00
1968 1692.00 1426.50 891.50 630.00 430.00 81.50 23.00 63.50 216.00 569.00 978.00 1587.00 8588.00
1969 1881.00 1318.50 1513.50 558.00 279.50 171.00 7.50 4.50 130.00 695.00 942.00 1442.50 8943.00
1970 1954.00 1383.50 1299.00 715.50 271.50 44.00 12.50 11.00 192.50 520.50 1037.00 1587.50 9028.50
1971 1849.00 1396.50 1042.00 521.00 293.00 21.50 34.00 15.00 224.50 512.50 985.00 1624.50 8518.50
1972 1822.00 1606.00 1109.50 606.00 205.50 41.50 19.50 37.50 181.00 646.00 1041.50 1691.00 9007.00
1973 1488.50 1140.00 791.00 584.00 243.00 30.00 2.00 0.00 245.00 447.00 1140.00 1637.00 7747.50
1974 1818.50 1310.50 1069.00 570.00 357.50 76.00 0.00 44.50 255.00 462.00 976.00 1307.50 8246.50
1975 1485.00 1408.00 1244.50 733.00 188.00 46.50 2.00 7.50 214.50 419.00 930.00 1471.00 8149.00
1976 1644.50 1108.50 1069.50 461.00 252.50 42.00 3.50 2.50 168.00 684.00 1156.00 1562.50 8154.50
1977 1972.00 1142.50 975.50 402.00 86.00 24.50 2.00 43.00 180.00 575.50 1134.50 1672.00 8209.50
1978 2068.00 1651.50 1231.00 664.00 232.50 78.50 14.50 24.00 146.00 548.00 1225.50 1682.00 9565.50
1979 2052.00 1750.50 1252.00 731.50 397.50 70.50 7.00 42.00 128.50 593.00 1074.00 1221.50 9320.00
1980 1611.50 1460.00 1220.00 471.00 224.50 34.00 1.00 25.50 196.50 609.50 866.50 1394.00 8114.00
1981 1414.00 1152.00 913.50 453.50 279.50 48.00 14.00 1.50 130.50 510.50 821.00 1541.45 b 7279.45
1982 2131.80 c 1395.92 d 1171.28 a 640.34 a 244.79 b 122.00 0.00 34.00 205.00 571.00 1119.50 1241.00 8876.64
1983 1299.00 1038.50 984.00 705.00 358.50 93.00 5.00 0.00 204.00 548.50 983.00 2031.50 8250.00
1984 1527.00 1009.00 1153.00 541.00 339.50 47.00 13.00 15.50 316.50 523.00 974.50 1611.50 8070.50
1985 1751.00 1363.50 899.50 452.00 163.00 150.50 2.00 46.50 297.50 612.00 1457.50 1774.00 8969.00
1986 1481.00 1480.50 906.00 628.00 249.50 34.50 0.00 64.00 254.00 549.00 1160.50 1266.50 8073.50
1987 1311.50 967.50 985.00 415.50 139.00 33.00 4.00 64.00 147.50 673.50 898.50 1256.50 6895.50
1988 1709.00 1462.00 993.50 592.50 125.50 0.00 3.00 31.00 199.00 638.00 1078.00 1432.50 8264.00
1989 1532.50 1682.00 1306.50 603.00 250.00 85.50 0.00 6.00 207.50 568.50 1092.00 1729.50 9063.00
1990 1231.00 1224.50 906.50 646.00 315.00 71.00 8.50 14.00 158.50 595.00 910.50 1636.50 7717.00
1991 1664.00 1044.00 968.50 500.50 208.50 6.50 6.00 2.00 212.00 628.50 1202.50 1270.00 7713.00
1992 1347.00 1049.50 892.00 638.00 230.00 101.00 66.00 102.00 211.00 588.50 1063.00 1561.50 7849.50
1993 1713.50 1485.50 1049.50 611.00 247.50 114.50 19.50 19.00 283.00 604.50 1115.00 1448.00 8710.50
1994 2003.00 1611.50 976.50 565.50 150.50 16.50 17.00 69.00 170.50 481.50 966.00 1504.00 8531.50
1995 1652.50 1386.50 1191.00 780.50 347.50 61.50 12.00 4.00 266.50 628.50 1161.50 1498.00 8990.00
1996 1888.50 1377.00 1355.50 729.00 374.50 61.00 14.50 6.00 247.00 614.00 1430.00 1829.00 9926.00
1997 1907.50 1413.50 1276.50 780.50 367.00 11.00 27.00 39.00 140.00 538.50 1200.50 1220.00 8921.00
1998 1588.50 1030.50 1237.50 512.50 186.00 118.00 2.50 0.50 112.00 518.50 953.50 1308.00 7568.00
1999 1744.55 b 1015.00 921.50 576.50 230.00 60.50 3.50 9.30 a 270.50 607.50 788.50 1251.50 7478.85
2000 1593.92 a 1124.00 872.00 644.00 232.50 80.50 29.00 21.50 215.00 499.00 1275.50 1913.22 a 8500.13
2001 1530.50 1704.50 1302.50 620.00 203.50 71.00 7.50 11.00 178.00 610.50 766.50 1414.50 8420.00
2002 1412.00 1051.00 1345.50 679.50 452.50 36.21 a 5.50 44.50 213.50 848.00 1035.00 1317.50 8440.71
2003 1548.00 1472.50 1137.00 573.00 323.50 73.50 0.00 24.50 250.50 507.00 1181.00 1296.50 8387.00
2004 1725.50 1362.00 900.00 575.50 344.50 121.00 38.50 104.50 160.00 553.50 919.00 1307.00 8111.00
2005 1661.00 1198.50 1053.00 509.50 340.50 27.50 12.50 32.00 131.00 547.00 959.50 1474.50 7946.50
2006 1174.00 1264.00 997.50 462.00 267.50 30.00 0.00 3.00 282.00 721.50 1057.50 1245.00 7504.00
2007 1656.00 1590.50 942.50 710.00 175.50 34.00 1.00 27.50 218.50 502.00 1016.50 1662.50 8536.50
2008 1790.50 1534.50 1131.00 694.00 332.00 72.50 4.50 15.50 192.00 0.00 z 992.00 1743.00 8501.50
2009 1822.00 1392.50 1189.50 668.50 289.50 131.00 22.50 57.00 102.50 767.50 803.50 1674.50 8920.50
2010 1737.00 1524.00 938.00 423.00 308.50 29.50 0.00 7.50 214.00 490.00 1036.00 1613.50 8321.00
2011 1834.00 1523.00 1361.00 672.50 329.00 59.00 0.00 0.50 207.50 484.50 1004.50 1259.50 8735.00
2012 1356.00 1193.00 664.50 491.00 223.50 32.50 0.00 36.00 215.00 647.50 1022.00 1536.50 7417.50
2013 1598.50 1407.50 1409.98 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4415.98
Period of Record Statistics
MEAN 1685.78 1396.10 1116.91 599.44 281.28 70.68 11.46 28.69 210.24 560.16 1040.14 1494.45 8478.79
S.D. 228.93 214.88 190.78 110.66 90.20 41.72 14.37 24.35 71.66 111.14 155.29 194.44 655.03
SKEW -0.07 -0.14 0.26 0.00 0.06 0.80 2.60 0.96 0.63 0.28 0.85 0.25 0.06
MAX 2170.00 2097.50 1654.00 871.50 569.00 201.50 97.50 104.50 463.50 914.00 1660.00 2031.50 10025.62
MIN 1174.00 864.00 655.50 357.50 86.00 0.00 0.00 0.00 68.00 299.00 729.00 1061.00 6715.50
NO YRS 120 120 121 119 119 118 120 118 120 119 115 120 109