ALEXANDRIA, SOUTH DAKOTA

Monthly Total Heating Degree Days

(390128)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201302
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 1713.00 1504.50 1276.68 a 685.86 a 340.00 17.59 a 1.60 b 25.00 31.00 o 541.00 961.00 1499.00 8565.24
1894 1758.73 a 1458.00 863.50 488.00 151.50 17.07 a 0.00 7.50 162.93 a 528.50 1091.50 1220.88 a 7748.12
1895 1814.50 1469.50 1084.00 333.00 254.00 71.50 16.50 27.50 183.00 636.50 1026.21 a 1390.00 8306.21
1896 1455.50 1199.00 1357.00 526.00 166.00 55.50 14.50 j 20.50 234.50 584.87 a 1454.50 1299.00 8352.37
1897 1803.17 a 1439.00 1346.50 581.50 265.16 c 93.00 0.50 57.50 23.00 n 509.00 1050.00 1507.12 a 8652.44
1898 1275.50 1193.00 979.50 542.50 251.00 31.00 0.00 7.50 0.00 z 0.00 z 0.00 z 1427.50 5707.50
1899 1429.00 1606.37 a 1466.50 538.00 260.50 23.50 5.50 5.00 191.50 426.50 661.00 1397.58 a 8010.95
1900 1244.00 1439.00 1088.50 372.00 120.00 27.50 7.50 0.00 235.50 290.50 1068.00 1236.50 7129.00
1901 1364.50 1329.50 985.59 b 481.50 195.00 47.00 0.00 0.00 202.76 a 383.07 c 941.25 b 1435.96 c 7366.13
1902 1375.22 b 1381.00 866.93 b 578.50 164.50 124.00 1.50 36.50 223.50 383.50 851.00 1641.50 7627.66
1903 1564.50 1538.50 1007.00 550.50 223.00 70.00 15.50 33.00 196.50 0.00 z 1021.50 1485.50 7705.50
1904 1714.50 1598.50 983.50 669.50 226.50 58.50 8.50 13.00 133.50 400.50 780.50 1375.50 7962.50
1905 1735.50 1514.50 789.50 551.50 330.50 56.00 17.00 0.00 68.50 567.50 816.00 1201.25 a 7647.75
1906 996.00 g 1197.50 1329.00 449.48 a 238.50 56.00 5.50 22.00 143.00 554.00 1001.00 1336.62 a 6332.60
1907 1756.15 a 1154.74 a 860.00 758.28 a 437.00 65.00 7.50 s 19.63 a 168.00 470.17 a 887.78 c 778.00 k 6576.74
1908 1329.26 b 1241.82 a 947.10 b 436.03 a 220.50 59.46 b 1.50 4.00 f 77.22 c 515.12 a 827.59 a 1326.28 a 6981.89
1909 1587.31 d 1262.00 1084.50 679.00 188.00 29.00 7.00 5.00 137.00 501.00 812.50 1726.18 a 8018.50
1910 1639.90 a 1558.67 a 504.50 394.00 318.00 87.50 2.50 30.00 151.50 370.50 0.00 z 0.00 z 5057.07
1911 1608.00 1277.11 a 857.15 a 673.45 a 91.50 4.00 8.02 b 75.29 c 110.56 c 547.00 1158.00 894.00 g 6410.07
1912 1480.50 f 1312.00 1212.00 438.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1176.00 4138.00
1913 461.50 r 1323.50 1110.50 468.00 256.50 2.50 0.00 0.50 152.59 a 481.02 a 354.00 j 1097.00 4892.10
1914 1216.50 1432.50 0.00 z 180.00 p 234.00 10.50 0.00 4.50 23.00 310.00 a 631.00 1588.75 a 5450.75
1915 0.00 z 1121.50 1314.50 300.54 b 0.00 z 35.50 20.50 32.50 100.00 310.00 768.50 1269.50 5273.04
1916 1795.86 b 1376.00 973.50 571.00 241.00 102.50 0.00 14.00 169.14 a 0.00 z 893.00 1538.12 a 7674.12
1917 1550.55 c 0.00 z 0.00 z 0.00 z 195.00 g 67.00 6.50 11.00 98.50 696.00 702.41 a 1581.53 b 4713.50
1918 1818.50 0.00 z 0.00 z 657.50 151.00 25.00 c 3.00 2.58 a 361.20 e 0.00 z 0.00 z 0.00 z 3018.78
1919 1254.43 b 1292.50 992.50 565.00 265.50 65.50 0.00 9.00 84.50 642.98 b 0.00 z 0.00 z 5171.91
1920 1461.50 1211.02 b 996.00 817.50 243.00 37.50 2.00 22.00 107.50 188.50 g 937.50 0.00 z 5835.52
1921 876.50 i 994.50 756.50 410.50 219.07 a 21.00 3.00 6.00 77.00 361.50 1028.50 1214.68 a 5092.25
1922 1477.00 1452.50 943.95 a 473.50 131.00 17.50 8.50 7.50 58.00 420.10 b 822.00 1452.87 a 7264.42
1923 1323.50 1367.00 1162.00 579.50 219.50 45.52 a 0.00 19.50 37.80 e 512.00 741.50 1107.00 7114.82
1924 1331.00 f 1214.50 1082.00 485.50 394.00 102.00 17.50 40.00 142.50 216.00 860.50 1593.00 6147.50
1925 1569.12 a 1087.50 725.40 a 233.50 278.00 21.50 6.50 0.00 79.00 819.43 a 921.50 1359.50 7100.95
1926 1421.50 990.89 a 986.00 508.00 105.00 39.50 3.00 0.50 201.72 a 457.50 1090.50 1417.50 7221.61
1927 1369.50 1061.50 900.00 540.00 288.50 95.50 3.50 27.50 184.50 320.50 1070.50 1771.28 b 7632.78
1928 1373.50 1122.00 864.50 709.50 145.00 106.50 0.00 14.50 176.50 456.50 896.00 1106.46 e 6970.96
1929 1822.00 1533.50 837.50 488.00 298.12 a 49.00 2.00 0.00 251.00 455.50 1061.00 1354.59 c 8152.21
1930 1797.50 875.50 943.50 431.50 262.47 a 45.00 5.88 b 0.00 124.00 530.00 844.00 1189.50 7048.85
1931 1137.00 871.00 967.50 460.00 293.50 16.00 1.00 10.50 70.50 330.00 854.00 1238.00 6249.00
1932 1617.00 1277.50 1213.50 445.50 157.50 0.52 a 3.10 a 0.00 a 105.00 532.00 901.50 1442.50 7695.62
1933 1102.00 1373.00 921.00 502.50 242.50 7.50 0.00 4.13 a 43.00 451.00 835.50 1324.50 6806.63
1934 1265.50 1097.00 928.45 a 453.00 52.50 5.00 1.50 19.63 a 209.00 287.50 753.00 1324.50 6396.58
1935 1475.00 927.50 779.50 599.00 324.00 76.00 0.00 42.50 108.00 506.00 1013.50 1323.00 7174.00
1936 1902.50 1983.50 904.00 614.00 94.50 33.50 0.00 0.00 65.50 482.50 934.50 1267.50 8282.00
1937 1941.78 b 1354.50 1001.50 536.00 140.50 70.50 0.00 0.00 119.00 473.00 960.00 1390.00 7986.78
1938 1490.58 a 1293.00 766.50 444.50 232.50 26.00 0.00 0.00 63.50 224.00 948.00 1191.00 6679.58
1939 1216.50 1462.50 897.50 535.50 57.87 a 27.00 0.00 2.50 105.50 413.50 754.50 1009.00 6481.87
1940 1814.50 1270.50 1088.00 546.00 217.50 18.50 0.00 6.50 55.00 210.00 1075.00 1215.00 7516.50
1941 1389.00 1236.00 1008.00 402.50 97.00 51.50 9.00 7.50 118.50 400.00 802.00 1081.90 a 6602.90
1942 1295.00 1190.00 916.57 a 351.50 309.50 40.00 0.50 7.00 253.50 440.00 833.50 1384.00 7021.07
1943 1668.50 1026.50 1118.50 416.00 286.50 64.00 0.00 11.50 162.50 388.00 913.00 1168.00 7223.00
1944 1159.50 1317.00 1191.00 631.50 163.50 68.00 3.50 26.50 114.50 373.50 874.50 1294.50 7217.50
1945 1372.00 1144.50 793.00 580.50 358.00 159.00 19.00 8.00 193.00 394.50 957.78 c 1607.50 7586.78
1946 1384.50 1155.00 727.00 343.00 320.00 73.00 2.00 37.50 139.00 484.00 1002.00 1257.05 a 6924.05
1947 1224.50 1340.00 1070.00 641.00 312.50 67.50 8.50 0.00 141.50 242.50 1086.00 1372.00 7506.00
1948 1527.78 a 1347.00 1058.00 352.50 226.00 53.00 0.00 9.00 78.00 e 429.00 934.50 1399.50 7414.28
1949 1693.50 1420.50 1023.00 454.50 118.83 a 18.00 1.00 5.00 189.50 414.00 645.00 1334.50 7317.33
1950 1847.50 1280.50 1230.50 751.00 323.50 56.90 a 11.00 20.00 108.50 324.50 981.00 1389.00 8323.90
1951 1501.00 1069.50 1336.50 649.00 179.00 126.50 29.00 18.50 243.00 517.50 1041.72 a 1586.50 8297.72
1952 1571.00 1096.50 1198.50 494.00 212.50 4.50 1.00 0.50 96.50 523.00 884.00 1252.50 7334.50
1953 1342.50 1148.50 922.50 682.00 258.00 32.50 3.50 2.50 90.00 271.50 772.50 1338.50 6864.50
1954 1670.50 783.00 1100.00 446.00 353.50 49.00 0.00 0.50 84.50 512.50 681.50 1002.00 g 5681.00
1955 1372.00 1389.50 1025.50 254.00 84.50 66.50 0.00 3.00 115.50 365.00 1164.00 1630.00 7469.50
1956 1657.50 1449.50 1097.50 675.00 181.50 11.00 1.50 9.00 117.50 224.00 895.34 a 1140.50 7459.84
1957 1659.50 1136.50 1031.50 553.50 265.50 40.50 0.00 7.23 a 154.50 465.00 882.50 1046.00 7242.23
1958 1211.50 1300.50 1112.00 508.50 115.50 88.00 9.50 14.50 76.00 364.50 839.50 1398.00 7038.00
1959 1606.50 1364.50 819.00 496.00 209.50 16.00 5.50 0.00 157.00 584.50 1146.50 1061.50 7466.50
1960 1545.50 1437.50 1436.50 528.00 216.00 27.50 1.50 1.50 138.50 383.00 815.50 1333.50 7864.50
1961 1511.50 1090.50 860.00 652.50 272.00 30.00 0.00 0.00 208.00 378.00 907.50 1469.50 7379.50
1962 1503.50 1254.50 1241.00 530.50 93.00 37.50 6.00 0.50 151.00 374.07 a 730.00 1238.50 7160.07
1963 1713.00 1132.00 735.50 432.00 181.00 5.50 0.00 13.00 50.00 190.50 779.50 1545.00 6777.00
1964 1275.00 1059.00 1144.50 437.50 129.00 28.50 0.00 41.00 137.50 407.00 916.50 1484.00 7059.50
1965 1552.50 1274.00 1283.50 474.00 127.00 8.00 0.00 15.50 319.00 327.00 868.50 1078.50 7327.50
1966 1741.00 1286.00 792.50 636.00 260.50 34.00 0.00 21.00 137.50 392.00 952.50 1316.00 7569.00
1967 1357.00 1265.00 806.00 471.50 331.00 30.00 24.50 16.00 94.50 466.50 882.00 1257.50 7001.50
1968 1465.00 1258.00 673.00 468.00 304.00 32.00 10.00 7.50 120.00 421.50 861.50 1450.50 7071.00
1969 1719.50 1207.50 1329.00 430.50 161.00 93.00 0.00 3.00 54.50 617.50 842.50 1277.00 7735.00
1970 1753.50 1112.00 1100.50 526.50 145.50 26.00 6.50 0.00 151.00 501.00 931.50 1437.00 7691.00
1971 1637.00 1233.00 1002.50 446.50 225.50 8.00 21.00 2.00 153.00 366.00 866.50 1382.00 7343.00
1972 1644.50 1420.00 960.50 541.50 207.00 23.00 15.00 17.50 150.50 515.00 920.50 1472.50 7887.50
1973 1390.50 1124.00 743.00 517.50 222.00 13.50 0.00 0.00 140.50 306.50 904.50 1427.50 6789.50
1974 1518.50 1056.50 856.00 432.50 243.50 52.50 0.00 21.50 176.50 335.00 858.50 1231.50 6782.50
1975 1391.50 1313.50 1156.50 658.00 132.50 36.00 5.00 0.00 183.00 372.00 898.00 1317.50 7463.50
1976 1460.50 952.50 890.50 371.50 201.50 12.50 0.50 0.00 109.00 586.00 1052.50 1369.00 7006.00
1977 1736.50 998.50 849.00 314.00 19.50 1.00 0.00 13.00 98.00 456.50 930.00 1416.00 6832.00
1978 1930.50 1530.00 1000.50 529.50 188.58 a 34.50 2.50 11.50 55.00 406.50 937.50 1472.00 8098.58
1979 1890.50 1540.00 1034.00 563.50 275.50 27.50 0.00 14.50 66.00 435.00 966.50 1072.50 7885.50
1980 1402.00 1296.50 986.50 412.50 163.00 8.50 0.00 3.50 58.50 465.00 744.50 1263.00 6803.50
1981 1210.50 1024.50 737.50 266.50 199.00 5.17 a 5.50 0.00 78.50 459.50 693.50 1377.00 6057.17
1982 1845.00 1221.50 961.00 571.50 130.50 59.50 0.00 10.50 147.50 427.50 997.00 1176.00 7547.50
1983 1264.50 999.00 927.00 655.00 262.00 46.00 0.50 0.00 116.00 406.00 890.50 1934.00 7500.50
1984 1438.50 1024.50 1170.50 544.00 238.50 17.00 1.50 3.50 232.50 444.00 815.50 1358.50 7288.50
1985 1523.00 1228.00 816.50 348.00 101.50 73.00 1.00 25.00 238.00 450.00 1271.50 1665.50 7741.00
1986 1272.50 1287.00 764.00 487.50 150.00 6.00 0.00 32.00 124.50 397.50 997.00 1124.50 6642.50
1987 1171.50 827.50 805.50 323.50 66.50 9.50 2.50 47.50 91.50 553.00 771.50 1206.00 5876.00
1988 1682.00 1419.50 836.00 464.00 76.50 1.50 3.00 13.00 99.50 530.50 862.00 1228.00 7215.50
1989 1168.50 1469.00 1065.50 460.50 169.50 46.50 0.00 3.00 145.50 417.50 956.50 1614.00 7516.00
1990 1061.00 1036.00 789.00 522.50 222.00 20.50 3.50 2.00 84.50 452.00 802.00 1482.00 6477.00
1991 1524.50 910.50 816.50 428.50 180.00 1.50 0.00 1.00 134.50 495.00 1113.50 1156.00 6761.50
1992 1105.00 956.50 756.00 572.00 160.00 31.50 30.00 56.00 120.00 461.50 1014.50 1369.50 6632.50
1993 1538.50 1366.50 1033.00 564.00 189.00 57.50 1.00 12.00 196.50 461.50 1009.00 1287.00 7715.50
1994 1773.50 1425.50 814.00 500.00 145.50 3.00 10.00 12.00 97.50 366.00 823.00 1324.00 7294.00
1995 1455.50 1078.50 924.50 672.00 273.00 47.00 2.50 2.00 157.00 497.50 1032.50 1262.22 a 7404.22
1996 1603.50 1138.50 1137.50 575.50 278.00 22.00 4.50 0.00 173.50 438.50 1185.50 1664.00 8221.00
1997 1688.00 1227.50 978.50 662.50 272.50 1.00 10.50 13.50 75.50 398.50 1021.50 1127.50 7477.00
1998 1350.50 840.00 1094.00 455.50 91.50 83.50 0.00 0.00 30.50 370.50 808.00 1144.50 6268.50
1999 1434.00 856.00 832.50 488.50 159.50 38.50 1.50 3.50 162.00 442.50 597.00 1121.50 6137.00
2000 1302.00 887.00 678.00 457.50 127.50 38.00 9.50 0.00 z 115.00 351.33 a 1196.00 1681.00 6842.83
2001 1372.00 1446.00 1165.50 465.00 147.00 35.50 1.00 0.50 113.50 418.50 586.50 1207.00 6958.00
2002 1169.00 899.50 1221.00 444.00 300.00 15.00 0.00 7.50 95.50 644.50 865.50 1115.00 6776.50
2003 1375.50 1190.00 908.50 442.00 230.00 49.50 0.00 6.00 127.50 329.00 941.50 1139.00 6738.50
2004 1442.50 1227.50 734.50 399.00 187.00 41.50 7.50 33.50 64.50 389.00 763.00 1144.50 6434.00
2005 1463.00 945.00 865.00 378.50 227.50 3.00 2.50 0.00 28.00 395.50 759.50 1397.00 6464.50
2006 971.00 1097.50 899.00 320.00 169.50 10.50 0.00 0.00 187.00 530.50 862.00 1110.00 6157.00
2007 1405.50 1359.50 697.00 553.50 66.00 13.50 0.00 0.00 90.00 340.00 835.50 1387.50 6748.00
2008 1487.00 1339.50 995.00 581.50 225.50 8.50 3.50 0.50 88.50 428.00 862.50 1499.50 7519.50
2009 1513.00 1095.00 935.50 551.50 180.50 66.00 12.00 18.50 59.00 660.00 671.50 1519.00 7281.50
2010 1583.00 1355.50 815.50 304.50 240.50 9.50 0.00 0.00 97.50 336.50 860.00 1435.50 7038.00
2011 1630.94 d 1267.50 1048.50 528.10 a 222.00 25.71 b 0.00 a 0.00 153.00 335.00 797.00 1106.38 b 7114.14
2012 1180.00 1041.50 392.00 344.50 108.00 10.50 t 0.00 z 0.00 z 0.00 z 0.00 z 533.00 m 1371.50 4437.50
2013 1449.50 1251.50 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 0.00 z 2701.00
Period of Record Statistics
MEAN 1496.77 1233.74 976.22 504.14 207.31 39.86 4.28 11.86 131.31 434.99 905.07 1343.67 7233.66
S.D. 215.82 201.93 190.15 113.08 79.62 30.81 6.32 14.30 60.43 106.68 142.44 176.45 548.24
SKEW -0.01 0.16 0.14 0.10 0.10 1.08 2.06 1.75 0.85 0.39 0.54 0.50 -0.12
MAX 1941.78 1983.50 1466.50 817.50 437.00 159.00 30.00 75.29 361.20 819.43 1454.50 1934.00 8323.90
MIN 971.00 783.00 392.00 233.50 19.50 0.52 0.00 0.00 23.00 190.50 586.50 1009.00 5876.00
NO YRS 115 119 117 118 117 118 116 116 115 113 113 113 96