DE SMET, SOUTH DAKOTA

Monthly Total Heating Degree Days

(392302)

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 1888.79 c 1705.85 b 1256.07 d 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 576.00 1090.50 1635.77 a 8152.97
1894 1826.00 1365.00 d 927.50 443.79 a 191.50 6.00 1.00 15.00 137.00 0.00 z 0.00 z 0.00 z 4912.79
1895 1361.50 h 686.00 o 1265.32 a 118.50 x 385.50 h 208.00 61.00 p 0.00 z 191.00 661.50 1103.50 0.00 z 3429.32
1896 1377.00 1243.00 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 2620.00
1897 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 509.50 1179.00 1587.50 3276.00
1898 1429.00 1253.50 1142.00 629.00 345.50 28.97 a 20.00 21.50 190.56 c 797.00 1226.50 1549.00 8632.52
1899 1539.67 a 1685.00 1520.50 611.38 a 327.00 32.50 8.50 14.50 282.00 510.50 749.00 1519.00 8799.55
1900 1397.50 1541.04 a 1165.50 407.50 179.50 51.00 51.00 6.00 241.00 320.00 1097.00 1288.00 7745.04
1901 1466.00 1382.00 1005.50 500.00 235.00 86.00 0.00 4.00 245.00 449.00 983.00 1569.00 7924.50
1902 1465.00 1365.50 962.50 649.00 199.00 148.50 14.50 57.00 293.50 495.50 1008.00 1377.36 b 8035.36
1903 0.00 z 686.50 o 0.00 z 607.00 369.02 e 52.50 i 29.85 d 27.50 m 0.00 z 0.00 z 0.00 z 0.00 z 1005.87
1904 1741.00 1680.00 1114.50 724.66 a 328.50 0.00 z 35.00 56.00 186.00 e 499.50 599.00 g 1366.50 7731.66
1905 1731.50 0.00 z 0.00 z 0.00 z 0.00 z 95.00 32.50 0.00 z 0.00 z 0.00 z 0.00 z 1392.23 c 3251.23
1906 1366.00 1274.50 1338.00 467.50 223.00 g 93.62 a 31.00 l 31.00 a 115.96 d 546.50 1046.00 1406.50 7685.58
1907 1862.50 1283.50 960.50 892.00 531.50 117.00 8.00 13.00 255.58 d 521.50 890.50 1234.50 8570.08
1908 1334.00 1356.00 1066.00 538.45 a 265.50 129.00 e 22.00 53.00 85.00 w 562.00 613.00 g 1405.52 c 6731.47
1909 1623.37 a 1334.50 1113.00 784.44 c 283.00 52.00 f 14.93 d 17.10 b 101.00 l 559.03 a 914.50 1732.38 a 8376.26
1910 1625.43 a 1572.00 619.48 a 477.50 314.50 f 110.19 d 11.62 c 41.00 f 196.67 c 364.52 b 0.00 z 1416.91 b 6394.33
1911 1685.88 a 1318.07 a 832.72 b 610.50 199.71 e 11.90 a 11.37 a 40.62 b 18.50 q 652.66 c 1247.59 a 1418.25 e 8029.27
1912 1635.00 f 1427.38 d 1296.50 501.60 e 175.00 g 87.00 g 21.50 f 20.84 b 326.25 b 491.83 e 891.60 e 1304.07 a 6260.07
1913 1029.00 l 1395.33 d 1221.40 a 533.50 358.00 47.59 a 13.00 1.50 216.00 737.69 d 791.38 a 951.00 g 5315.38
1914 1414.38 c 0.00 z 656.00 k 652.50 d 261.00 33.00 3.21 b 65.21 b 141.60 e 399.12 c 881.00 1079.00 j 3851.01
1915 1649.72 a 857.00 g 1267.68 c 367.22 c 429.50 177.32 b 92.47 b 83.00 n 211.07 b 477.00 869.42 d 736.50 n 5541.40
1916 0.00 z 1487.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 218.00 597.00 968.00 0.00 z 3270.00
1917 0.00 z 0.00 z 0.00 z 0.00 z 183.00 h 51.92 d 0.00 e 13.50 n 0.00 z 0.00 z 0.00 z 0.00 z 51.92
1918 0.00 z 0.00 z 0.00 z 523.00 g 220.32 c 36.00 e 14.35 d 4.00 f 275.19 d 253.50 j 460.50 r 1267.12 c 1812.99
1919 0.00 z 1394.40 c 0.00 z 0.00 z 0.00 z 0.00 z 0.00 f 16.03 b 17.50 u 709.00 0.00 z 1629.22 d 3748.66
1920 1604.77 a 1338.50 1107.50 855.50 295.65 d 48.00 u 0.00 r 33.50 0.00 z 308.89 c 990.54 b 1375.37 a 7910.21
1921 700.00 n 1038.59 a 889.18 a 481.07 b 142.00 k 29.48 a 15.50 a 30.00 159.83 a 432.93 b 1162.50 d 722.50 k 4239.09
1922 1671.33 b 1658.46 b 1076.73 a 557.59 a 226.09 b 16.50 17.50 j 29.00 g 93.00 f 385.50 h 880.20 e 562.50 t 6086.90
1923 589.50 s 1490.50 1251.50 648.89 c 276.00 70.00 2.87 d 0.00 z 128.65 d 541.97 b 807.93 a 1065.48 d 6283.79
1924 1778.76 b 1225.25 a 1164.57 a 585.50 426.52 b 124.66 a 18.50 m 32.00 130.00 l 331.59 c 966.50 1754.60 a 8389.94
1925 1670.00 1209.50 917.50 350.89 b 367.00 74.50 23.77 a 7.75 a 102.50 908.50 976.50 1441.50 a 8049.91
1926 1536.71 c 1144.89 a 1113.00 363.50 f 159.50 127.50 11.62 c 13.50 255.52 a 529.21 c 1166.90 a 1509.70 a 7568.06
1927 1437.22 b 1156.50 987.98 d 584.50 365.00 130.00 17.71 c 66.43 c 243.33 c 407.43 c 1054.66 a 1827.93 b 8278.70
1928 0.00 z 1047.00 970.00 0.00 z 0.00 z 0.00 z 0.00 z 37.50 240.00 b 567.09 b 966.96 b 1188.91 d 5017.46
1929 1939.16 c 1126.50 j 1000.00 0.00 z 0.00 z 70.50 l 1.03 a 4.00 l 304.50 519.50 1176.00 e 996.00 j 4940.19
1930 1406.50 j 966.00 a 1058.81 b 329.48 a 143.00 p 65.00 13.00 3.00 101.00 g 580.22 a 939.83 a 944.00 h 3955.34
1931 889.50 h 913.00 1022.00 508.00 359.00 22.76 a 5.17 d 14.50 n 102.00 399.00 911.38 a 1271.00 5513.30
1932 1603.50 1300.50 1344.07 c 532.50 207.91 b 12.00 10.73 e 6.50 162.93 a 636.50 1029.50 1553.50 8400.15
1933 1259.50 1393.26 a 1027.65 a 607.50 b 290.22 b 8.79 a 1.00 13.00 71.50 529.58 a 962.07 a 1062.00 g 6164.08
1934 1326.28 a 1215.50 1063.30 a 600.00 e 86.11 d 28.45 a 10.50 62.00 b 291.21 a 444.33 a 902.50 1559.30 a 7589.48
1935 1286.00 h 652.00 i 954.28 a 732.00 401.97 a 119.44 c 0.00 57.50 138.00 575.00 1149.00 1453.00 5580.19
1936 2021.50 2072.50 1050.00 726.50 146.73 a 66.50 0.00 5.00 110.50 610.00 1088.00 1428.00 9325.23
1937 2020.50 1490.00 1112.50 702.00 256.00 124.50 8.50 7.50 182.50 602.00 1066.00 1565.00 9137.00
1938 1663.00 1367.50 944.50 580.00 358.50 61.55 a 0.00 3.50 109.50 304.00 1112.50 1333.00 7837.55
1939 1372.50 1606.50 1066.50 635.50 121.00 40.00 0.00 20.50 150.50 563.00 853.50 1135.50 7565.00
1940 1848.50 1355.50 1220.50 670.50 294.50 72.00 2.00 56.50 127.00 352.00 1183.50 1343.50 8526.00
1941 1542.77 a 1401.50 1127.00 479.00 140.00 87.00 21.50 14.50 179.00 499.00 937.50 1188.50 7617.27
1942 1402.00 1248.00 988.00 432.50 376.00 63.00 14.00 16.50 307.50 515.00 944.50 1551.50 7858.50
1943 1814.00 1223.50 1255.50 527.00 368.50 96.00 3.50 11.50 229.50 473.00 1021.55 a 1246.00 8269.55
1944 1200.00 1391.42 d 994.00 g 585.00 f 207.24 d 98.57 b 4.00 f 0.00 z 0.00 z 0.00 z 0.00 z 977.50 j 2897.23
1945 1494.50 1215.00 785.16 b 329.00 n 422.12 a 185.69 a 26.02 c 0.00 z 0.00 z 0.00 z 0.00 z 1701.38 a 5829.86
1946 1516.00 1244.50 723.50 368.50 368.26 b 91.07 b 4.50 43.29 b 185.89 b 626.64 c 1054.04 d 1359.23 e 7585.43
1947 1411.65 d 1427.46 b 892.00 f 757.78 c 357.53 a 93.50 14.95 c 0.60 e 186.96 b 294.50 1198.00 1511.77 a 7254.69
1948 1671.00 1038.50 h 1162.50 b 461.40 e 252.28 b 27.00 f 2.50 h 18.08 a 96.21 a 484.38 c 967.50 1433.23 a 6546.57
1949 1741.00 1425.76 c 809.50 f 116.50 x 0.00 z 0.00 z 0.00 z 7.00 w 208.50 483.00 774.50 1463.64 c 6096.40
1950 1895.50 1270.00 1268.50 826.67 c 377.17 d 54.00 g 13.00 g 28.13 d 107.00 f 268.50 j 1118.33 c 1528.19 d 8312.48
1951 1662.12 a 1121.08 b 1126.50 f 706.55 a 197.92 e 152.78 c 29.00 25.00 221.50 f 590.60 b 1153.00 1656.00 7294.05
1952 1641.00 1186.31 b 1281.33 a 529.50 254.00 29.50 7.50 11.50 113.04 b 586.42 a 976.61 b 1331.50 7948.21
1953 1469.40 a 1279.00 1030.75 a 746.50 300.00 32.50 2.00 6.00 120.50 f 322.00 845.00 1418.77 a 7451.92
1954 1727.96 d 844.50 962.50 f 522.50 374.50 67.00 0.00 0.50 123.00 591.50 750.00 1313.22 b 6314.69
1955 1467.16 b 1442.54 b 1117.50 296.38 a 138.90 e 89.50 0.00 b 5.68 a 173.00 425.45 b 1262.50 1682.27 a 8100.87
1956 1662.24 b 0.00 z 1174.90 a 723.21 b 235.08 a 16.00 0.00 20.50 186.50 230.50 f 989.00 1264.11 d 6271.55
1957 1801.50 1232.00 1054.00 647.78 c 325.00 66.00 0.00 20.00 201.00 521.00 991.50 1148.03 a 8007.81
1958 1317.00 1320.67 d 1113.50 573.89 c 128.28 b 126.00 33.07 a 11.50 130.96 d 443.30 a 965.50 1538.00 7701.66
1959 1691.05 a 1499.00 744.50 f 570.00 b 257.00 28.00 6.09 c 1.00 200.50 676.50 1269.00 1144.50 7342.64
1960 1644.50 1453.50 1477.15 a 573.21 b 235.08 a 42.00 5.50 3.00 184.00 474.50 955.96 d 1438.29 b 8486.70
1961 1619.50 1181.00 908.00 779.40 e 330.00 30.60 e 0.00 b 1.00 245.50 442.00 984.50 1571.50 8093.00
1962 1639.38 a 1395.50 1277.50 622.50 163.00 62.00 19.00 5.50 217.76 a 429.00 836.50 1345.00 8012.64
1963 1852.00 1256.50 856.50 497.00 273.50 24.00 0.00 21.00 101.50 225.00 854.50 1619.00 7580.50
1964 1372.50 1142.50 1254.50 550.00 164.00 58.00 0.00 56.50 189.00 459.50 1049.00 1614.00 7909.50
1965 1728.50 1423.00 1400.50 621.50 166.50 13.00 10.50 28.00 403.50 416.00 963.00 1164.00 8338.00
1966 1847.50 1394.00 869.00 737.00 311.50 48.50 0.00 51.50 168.00 505.00 1023.50 1383.00 8338.50
1967 1492.50 1419.50 923.00 557.00 389.50 42.00 33.00 24.50 144.00 549.00 970.00 1367.50 7911.50
1968 1562.50 1350.00 778.50 548.50 375.50 57.50 19.00 36.00 167.00 498.50 972.00 1518.00 7883.00
1969 1798.50 1244.00 1389.50 494.00 198.00 140.00 2.00 0.50 119.00 687.00 920.50 1384.50 8377.50
1970 1836.75 a 1207.92 c 1191.00 642.00 196.50 23.50 3.00 0.00 189.50 520.00 1014.50 1548.50 8373.17
1971 1780.00 1339.00 1072.50 482.50 276.00 18.00 16.00 4.50 175.50 432.50 971.00 1496.50 8064.00
1972 1770.50 1515.00 1087.58 a 623.00 238.00 36.50 23.00 37.00 156.50 612.50 1028.00 1599.00 8726.58
1973 1459.00 1182.00 817.50 569.50 253.50 17.50 0.50 0.00 179.50 364.50 984.50 1532.95 a 7360.95
1974 1603.00 1204.00 962.55 a 503.50 282.00 52.00 0.00 37.50 189.50 374.07 a 914.50 1314.00 7436.62
1975 1516.42 a 1341.31 b 1252.00 771.00 173.00 50.50 6.50 4.50 223.00 420.50 947.50 1400.50 8106.72
1976 1585.65 a 1018.00 975.50 459.11 b 223.50 20.17 a 1.07 b 1.00 144.50 658.50 1139.00 1488.00 7714.00
1977 1920.00 1143.00 894.57 c 365.00 60.00 15.50 0.00 c 35.17 e 160.00 c 544.50 1103.50 1595.47 a 7836.71
1978 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 48.00 7.75 a 8.50 95.50 486.00 1073.50 1606.50 3325.75
1979 2061.50 1633.50 1202.50 708.50 347.00 61.00 3.00 20.00 83.50 520.50 1058.28 a 1167.84 b 8867.12
1980 1547.93 a 1411.52 c 1167.67 a 508.93 b 184.00 16.61 b 1.50 5.00 127.50 575.50 840.50 1393.93 b 7780.59
1981 1407.00 1175.50 839.50 391.00 250.00 20.50 11.50 0.50 102.50 509.50 801.50 1514.50 7023.50
1982 2004.00 1320.00 1095.00 650.00 188.50 100.00 0.00 33.50 176.50 530.00 1079.50 1241.00 8418.00
1983 1339.00 1065.50 1016.00 723.50 326.00 70.50 4.50 0.00 178.00 491.00 994.50 2009.00 8217.50
1984 1526.00 1064.50 1245.50 586.50 299.50 30.50 6.50 5.00 279.00 513.50 902.00 1516.50 7975.00
1985 1686.50 1345.00 934.50 407.50 127.00 122.50 4.50 53.00 267.50 523.50 1376.50 1797.00 8645.00
1986 1375.00 1415.00 916.50 541.00 196.50 16.00 0.00 43.50 187.00 466.00 1094.00 1208.50 7459.00
1987 1285.50 917.50 903.00 341.50 85.00 15.00 3.00 45.00 122.50 619.50 836.50 1269.50 6443.50
1988 1761.50 1491.00 987.00 477.50 92.50 2.00 1.00 23.50 116.50 580.50 956.00 1326.50 7815.50
1989 1302.00 1595.50 1181.50 520.50 223.50 66.00 0.00 8.50 180.00 481.50 1050.00 1693.00 8302.00
1990 1169.00 1159.50 902.50 638.00 306.50 47.00 12.00 15.50 146.50 587.00 891.50 1584.00 7459.00
1991 1639.00 1043.00 967.50 496.55 a 251.00 6.00 7.00 3.50 226.00 634.50 1216.00 1234.50 7724.55
1992 1276.00 1089.00 904.00 686.00 221.00 81.50 89.50 87.00 188.50 553.00 1114.00 1549.00 7838.50
1993 1628.50 1501.50 1228.00 622.00 273.83 d 119.00 7.00 20.00 320.50 617.50 1086.50 1448.00 8872.33
1994 1939.00 1478.30 a 974.50 590.00 204.50 20.50 28.00 32.00 148.00 469.00 933.00 1383.50 8200.30
1995 1554.00 1221.50 1057.62 a 772.00 349.50 57.00 9.00 5.50 232.50 598.00 1185.00 1396.55 a 8438.17
1996 1746.50 1334.00 1260.50 702.00 371.50 50.50 12.50 4.50 237.50 604.50 1327.80 e 1690.50 9342.30
1997 1834.00 1306.50 1165.50 767.59 a 402.50 2.50 27.00 21.00 111.00 491.50 1145.00 1213.50 8487.59
1998 1457.50 972.00 1206.50 507.50 119.50 93.50 0.00 0.00 78.00 463.50 941.50 1259.50 7099.00
1999 1625.50 1009.00 931.03 a 532.76 a 228.50 36.00 3.00 3.00 201.00 507.50 675.00 1181.50 6933.79
2000 1479.50 974.50 749.50 568.00 181.50 76.00 21.00 6.20 a 166.55 a 434.00 1200.56 c 1842.50 7699.81
2001 1480.50 1576.50 1246.00 583.50 203.00 68.00 9.19 d 8.00 166.00 553.19 b 736.00 1331.50 7961.37
2002 1364.00 1087.00 1449.50 707.00 538.00 36.00 0.00 27.00 166.00 832.50 996.50 1253.00 8456.50
2003 1324.00 f 1398.00 1067.50 545.00 333.50 0.00 z 0.00 14.00 222.00 466.00 1098.50 1261.00 6405.50
2004 1642.00 1304.00 894.00 526.50 298.50 107.50 32.50 77.50 124.50 493.50 846.50 1280.00 7627.00
2005 1596.00 1101.00 1002.00 460.00 312.50 20.00 8.00 16.50 77.50 487.50 917.50 1481.50 7480.00
2006 1141.00 1252.00 1000.50 439.50 240.00 32.00 0.00 2.00 272.50 641.00 949.00 1200.00 7169.50
2007 1504.00 1506.00 893.50 649.50 142.00 31.50 0.50 15.50 166.00 425.50 951.00 1539.00 7824.00
2008 1628.00 1458.06 b 1164.00 715.86 a 357.00 48.10 a 4.65 a 8.00 145.00 555.00 1007.50 1671.00 8762.17
2009 1700.00 1265.00 1078.00 647.00 263.50 125.00 26.50 41.00 96.50 756.50 710.00 1557.50 8266.50
2010 1599.50 1345.00 887.00 396.50 306.00 26.00 0.00 3.50 183.00 432.50 956.50 1497.00 7632.50
2011 1674.00 1336.50 1185.50 665.50 290.00 53.00 0.50 1.00 194.50 396.00 851.00 1128.50 7776.00
2012 1244.50 1098.00 539.50 438.50 154.00 22.50 0.00 14.00 137.50 553.00 882.50 1326.00 6410.00
2013 1433.50 1232.00 1220.88 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 3886.38
Period of Record Statistics
MEAN 1596.00 1310.35 1070.00 578.50 266.19 62.10 11.05 21.00 182.22 519.02 998.28 1436.35 8006.25
S.D. 203.50 194.97 178.95 124.02 94.96 44.36 15.45 19.92 63.42 112.66 136.35 180.52 569.07
SKEW 0.06 0.37 -0.08 0.07 0.22 0.95 2.98 1.13 0.67 0.41 0.21 0.35 -0.20
MAX 2061.50 2072.50 1520.50 892.00 538.00 208.00 92.47 87.00 403.50 908.50 1376.50 2009.00 9342.30
MIN 1141.00 844.50 539.50 296.38 60.00 2.00 0.00 0.00 71.50 225.00 675.00 1065.48 6410.00
NO YRS 104 108 105 104 103 104 104 102 101 109 108 105 74