SISSETON, SOUTH DAKOTA

Monthly Total Heating Degree Days

(397742)

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
1900 0.00 z 0.00 z 0.00 z 451.00 242.26 d 80.36 b 12.18 c 4.00 234.50 374.00 1177.50 1366.50 3942.29
1901 1564.90 e 1495.31 b 1174.50 574.14 a 260.83 b 114.50 4.59 d 3.00 284.50 449.50 877.00 f 1558.78 a 7484.55
1902 1428.14 b 1325.00 1038.50 727.50 b 252.28 b 171.21 a 16.57 b 49.00 302.50 579.24 d 1005.00 1655.50 8550.43
1903 1611.00 1542.50 1173.00 637.00 290.37 a 122.50 37.41 b 94.11 c 336.00 483.50 1093.00 1610.00 9030.39
1904 1805.00 1792.50 1244.65 a 809.00 328.00 146.00 56.00 95.00 247.00 509.71 e 765.00 1454.00 9251.86
1905 1802.00 1457.50 917.50 678.00 419.50 128.50 h 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 5274.50
1906 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 0.00 z 0.00 z 0.00
1907 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 0.00 z 0.00 z 0.00
1908 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 0.00 z 0.00 z 0.00
1909 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 0.00 z 0.00 z 0.00
1910 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 0.00 z 0.00 z 0.00
1911 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 0.00 z 0.00 z 0.00
1912 0.00 z 0.00 z 0.00 z 520.00 272.50 127.50 24.28 a 59.93 a 335.17 a 96.00 w 895.38 d 1238.40 b 3473.17
1913 1761.04 e 992.00 i 1275.28 b 544.82 b 447.43 a 86.40 e 22.22 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4137.19
1914 0.00 z 0.00 z 826.50 i 0.00 z 0.00 z 15.00 c 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 15.00
1915 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 0.00 z 0.00 z 0.00
1916 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 0.00 z 0.00 z 0.00
1917 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 0.00 z 0.00 z 0.00
1918 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 0.00 z 0.00 z 0.00
1919 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 0.00 z 0.00 z 0.00
1920 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 0.00 z 0.00 z 0.00
1921 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 0.00 z 0.00 z 0.00
1922 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 0.00 z 0.00 z 0.00
1923 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 0.00 z 0.00 z 0.00
1924 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 0.00 z 0.00 z 0.00
1925 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 0.00 z 0.00 z 0.00
1926 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 0.00 z 0.00 z 0.00
1927 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 0.00 z 0.00 z 0.00
1928 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 0.00 z 0.00 z 0.00
1929 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 0.00 z 0.00 z 0.00
1930 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 0.00 z 0.00 z 0.00
1931 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 360.00 856.50 1189.50 2406.00
1932 372.00 w 1249.00 1284.00 523.50 139.50 l 1.00 12.50 8.50 130.00 640.00 1014.83 a 1477.00 6340.33
1933 1385.50 1469.50 1050.00 627.00 231.00 15.00 0.00 z 11.00 61.50 539.00 994.50 1530.50 7914.50
1934 1394.50 368.50 t 1083.50 520.50 74.00 15.00 4.50 48.50 241.50 344.62 a 812.07 a 1500.50 6039.19
1935 1662.63 a 1060.00 1024.50 764.00 426.50 119.46 b 0.00 67.00 174.00 596.50 1298.50 1510.50 8703.60
1936 2093.02 a 2102.50 1069.50 825.50 180.50 79.00 0.00 16.50 148.00 616.50 1085.00 1416.50 9632.52
1937 2065.00 1478.30 a 1196.00 681.72 a 256.00 107.50 9.00 10.00 220.00 608.00 1092.00 1532.50 9256.02
1938 1638.50 1435.00 923.50 595.50 340.50 57.50 1.50 0.00 105.00 314.50 1087.50 1359.00 7858.00
1939 1439.50 1677.50 1107.00 666.00 111.00 49.50 1.50 6.00 180.50 570.00 782.50 1055.50 7646.50
1940 1820.50 1366.00 1215.50 696.50 257.00 48.62 a 6.50 65.00 120.50 365.00 1168.00 1262.00 8391.12
1941 1524.00 1395.00 1100.50 489.00 155.50 89.50 28.00 26.00 201.50 492.50 924.50 1224.50 7650.50
1942 1310.00 1296.50 928.50 460.00 369.50 86.50 26.50 24.50 306.21 a 483.50 963.50 1573.50 7828.71
1943 1895.50 1306.50 1336.00 525.50 356.50 a 100.50 2.00 21.50 233.50 469.00 1041.50 1235.50 8523.50
1944 1193.50 1413.50 1277.00 747.50 211.00 73.50 7.50 56.50 186.00 425.50 940.00 1380.50 7912.00
1945 1537.00 1306.50 826.50 727.00 444.00 167.00 23.50 17.50 260.00 491.00 1062.00 1681.00 8543.00
1946 1588.00 1413.50 797.50 422.00 354.00 82.50 1.00 45.00 230.00 566.00 1043.28 a 1436.00 7978.78
1947 1347.50 1494.50 1171.00 709.00 403.50 116.00 16.50 11.50 224.00 327.00 1188.50 1511.00 8520.00
1948 1758.00 1552.50 1300.00 548.50 270.50 75.00 6.50 20.00 90.52 a 458.50 938.00 1439.50 8457.52
1949 1728.00 1538.50 1145.50 480.50 193.00 37.50 5.68 a 12.50 202.50 467.50 781.50 1505.50 8098.18
1950 2053.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 p 76.00 180.00 474.19 d 1172.07 a 1647.17 e 5602.43
1951 1836.46 d 1318.92 d 0.00 z 740.36 b 211.63 e 144.50 21.38 b 53.50 260.56 c 622.58 a 1177.50 1668.50 8055.89
1952 1746.50 1286.50 1372.27 a 531.50 285.00 32.00 7.00 19.50 118.97 a 599.85 a 917.78 c 1358.12 b 8274.98
1953 1554.00 1279.50 1062.50 767.59 a 315.00 89.00 24.50 3.00 158.00 316.00 831.00 1401.00 7801.09
1954 1847.00 919.00 1163.50 614.50 431.00 80.69 a 6.50 16.50 200.00 580.73 a 805.00 1272.00 7936.42
1955 1547.00 1505.26 a 1262.00 355.00 128.50 65.17 a 1.50 7.23 a 191.90 a 453.93 c 1265.00 1746.00 8528.49
1956 1697.50 1530.00 1175.86 b 784.50 275.50 21.00 14.00 33.50 217.50 0.00 z 0.00 z 558.50 p 5749.36
1957 1811.00 1294.00 1093.00 609.50 333.50 72.50 0.00 30.00 219.50 526.50 949.29 b 1189.00 8127.79
1958 1364.00 1417.00 1068.50 602.78 c 208.73 a 159.31 a 30.47 b 25.50 108.62 a 411.50 941.50 1537.50 7875.41
1959 1726.91 b 1460.00 943.00 573.50 270.00 40.00 3.50 2.07 a 182.00 688.50 1219.00 1102.50 8210.98
1960 1569.00 1425.14 a 1439.50 624.50 246.93 b 79.50 11.50 9.00 162.50 445.22 b 910.00 1469.73 c 8392.53
1961 1573.52 b 1135.56 a 864.50 753.50 325.00 18.00 e 4.50 0.00 237.00 419.50 f 967.00 1594.00 7472.57
1962 1692.00 1480.23 b 1228.00 654.00 180.50 56.00 16.00 6.50 140.50 g 382.50 812.00 1373.00 7880.73
1963 1817.00 1325.00 860.50 496.00 246.00 38.50 6.50 21.50 92.00 213.00 818.50 1642.00 7576.50
1964 1350.50 1185.50 1267.00 565.50 183.50 57.50 4.50 63.50 262.00 439.34 b 1002.50 1680.50 8061.84
1965 1833.50 1445.00 1447.00 638.00 198.50 25.50 3.00 30.50 441.50 377.50 992.50 1191.50 8624.00
1966 2016.50 1454.00 925.50 764.00 365.00 80.50 0.00 50.00 155.00 480.50 1122.50 1435.00 8848.50
1967 1533.00 1507.00 980.12 a 650.50 402.50 45.00 24.00 10.50 f 108.50 540.50 975.00 a 1393.50 8159.62
1968 1626.50 1499.88 d 722.09 b 549.00 327.00 59.00 15.00 31.50 142.50 519.00 954.50 1619.50 8065.47
1969 1897.50 1325.00 1318.00 547.00 236.00 f 136.00 19.50 0.00 c 143.50 636.00 919.50 1389.32 a 8331.32
1970 1851.00 1311.15 b 1240.50 623.50 242.00 19.50 0.50 0.52 a 157.00 510.00 1066.00 1551.60 b 8573.27
1971 1828.50 1335.50 1026.50 490.00 269.18 a 28.00 15.00 15.50 172.00 470.50 1005.00 1542.00 8197.68
1972 1770.00 1576.00 1122.00 658.00 197.50 54.50 8.50 13.00 166.00 606.05 a 1065.00 1657.50 8894.05
1973 1420.50 1131.50 807.50 586.00 223.50 16.00 4.00 3.00 213.00 337.50 1028.50 1561.37 a 7332.37
1974 1729.00 1349.00 1141.50 588.50 338.00 55.00 0.00 a 32.50 225.00 401.00 947.00 1282.22 b 8088.72
1975 1536.57 a 1435.50 1274.10 a 872.00 202.50 54.50 f 8.50 20.67 a 228.50 423.50 892.00 1433.23 a 8327.07
1976 1608.50 1039.34 a 1035.50 425.00 228.22 b 21.72 a 2.00 1.55 a 156.00 657.00 1119.50 1578.50 7872.84
1977 2010.00 1166.50 925.50 375.00 78.00 19.50 9.82 a 30.50 189.00 512.00 1119.50 1653.00 8088.32
1978 1973.50 1592.50 1158.37 a 667.50 206.67 a 48.00 13.50 16.53 a 120.52 a 474.50 1137.00 1599.50 9008.08
1979 2016.55 a 1747.50 1250.50 826.50 412.00 55.50 7.50 47.00 119.00 561.00 1059.00 1180.00 9282.05
1980 1605.28 a 1489.00 0.00 z 456.00 170.50 a 35.00 1.00 36.00 178.45 a 583.50 845.50 1434.86 c 6835.09
1981 1436.33 a 1146.00 854.50 413.50 240.00 39.00 9.00 14.47 a 192.78 c 549.50 797.00 1598.10 b 7290.18
1982 2091.50 1397.50 1129.00 653.00 208.98 b 124.50 0.00 35.00 197.50 531.50 1090.00 1230.50 8688.98
1983 1345.00 1086.50 1040.00 702.50 311.00 63.50 3.50 0.00 182.00 512.00 985.50 1969.00 8200.50
1984 1508.50 1034.50 1267.50 566.00 263.00 24.50 9.00 8.00 289.50 484.50 937.00 1564.50 7956.50
1985 1699.32 a 1367.50 898.50 422.07 a 119.00 127.50 3.00 35.00 270.50 544.50 1378.00 1741.00 8605.89
1986 1433.50 1438.50 906.00 562.00 237.00 42.50 0.00 64.00 242.50 528.50 1115.50 1207.00 7777.00
1987 1301.50 956.00 964.50 376.50 134.50 32.50 9.00 52.50 125.00 632.00 880.00 1255.00 6719.00
1988 1725.50 1510.00 1031.50 541.00 113.50 6.50 0.00 26.00 175.50 618.00 1066.00 1367.50 8181.00
1989 1417.50 1605.50 1284.50 621.00 223.00 82.50 2.00 9.50 182.50 511.50 1121.00 1704.50 8765.00
1990 1197.00 1190.00 921.00 596.50 301.00 50.00 12.50 24.50 147.00 539.50 857.50 1532.50 7369.00
1991 1632.50 1094.00 1032.50 481.50 217.00 15.00 10.00 8.00 201.00 565.00 0.00 z 1278.00 6534.50
1992 1309.50 1091.50 903.00 670.50 204.00 97.00 69.00 87.50 189.50 570.50 1129.00 1601.50 7922.50
1993 1706.66 c 1444.50 1106.00 651.50 271.50 133.50 24.50 27.50 282.00 558.00 1107.50 1430.00 8743.16
1994 2020.50 1567.50 943.00 554.00 181.00 28.00 16.50 53.50 152.00 437.00 888.50 1281.33 a 8122.83
1995 1598.00 1326.00 1108.50 795.50 316.50 62.00 9.00 1.50 236.00 605.50 1186.50 1507.00 8752.00
1996 1910.50 1395.00 1342.50 748.50 374.00 58.00 8.50 5.00 237.50 562.50 1356.00 1737.50 9735.50
1997 1826.00 1300.50 1208.00 746.90 a 353.92 a 5.50 31.00 43.00 92.00 495.00 1126.50 1180.00 8408.31
1998 1569.00 1010.00 1220.00 484.00 131.00 100.00 1.00 2.00 89.50 465.50 928.00 1277.50 7277.50
1999 1692.00 1049.50 959.00 586.00 226.50 70.00 c 0.00 9.50 214.50 559.50 736.00 1202.50 7305.00
2000 1558.94 e 1126.50 840.00 622.50 201.00 82.00 30.45 c 15.50 p 166.03 a 453.12 a 1125.00 1899.30 c 8104.84
2001 1392.42 a 1572.00 1181.50 639.00 206.50 56.50 9.82 a 11.00 187.50 549.50 651.50 1292.50 7749.73
2002 1339.00 1016.00 1352.50 677.00 422.00 27.50 6.50 17.50 156.00 813.00 993.50 1240.00 8060.50
2003 1574.00 1431.50 1113.50 566.00 301.00 71.00 0.00 13.00 204.50 455.50 1103.50 1288.50 8122.00
2004 1761.00 1303.50 946.00 582.50 369.00 106.50 38.50 68.00 127.50 507.00 850.00 1314.00 7973.50
2005 1637.00 1183.00 1067.50 490.00 317.50 9.00 8.00 24.50 98.50 517.00 946.50 1380.50 7679.00
2006 1184.50 1354.00 1051.50 450.00 240.50 35.50 0.00 4.00 254.50 656.00 923.00 1148.00 7301.50
2007 1465.00 1518.50 925.50 697.50 166.00 31.00 1.50 40.50 173.50 432.00 966.00 1572.00 7989.00
2008 1625.00 0.00 z 1173.50 709.00 312.00 68.50 4.50 11.50 159.00 559.00 963.50 1705.50 7291.00
2009 1758.50 1389.00 1202.00 688.50 288.00 123.50 18.00 44.00 87.00 753.00 754.00 1661.00 8766.50
2010 1676.50 1495.00 927.50 411.00 293.00 28.00 0.00 6.00 219.50 444.50 1019.00 1659.00 8179.00
2011 1812.00 1405.50 1326.50 655.50 341.00 56.50 1.50 1.50 210.00 421.00 905.50 1179.00 8315.50
2012 1304.07 a 1181.50 668.00 498.00 179.50 22.50 0.00 28.00 194.00 613.50 970.00 1519.50 7178.57
2013 1566.00 1420.00 907.00 k 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 2986.00
Period of Record Statistics
MEAN 1642.17 1363.57 1092.01 604.53 264.10 65.71 11.00 26.41 191.83 508.45 998.86 1453.00 8212.01
S.D. 222.70 199.64 170.13 117.14 88.32 41.55 12.52 23.54 65.18 101.23 143.23 189.47 591.58
SKEW 0.04 0.25 -0.15 0.00 0.14 0.61 2.05 1.04 0.70 -0.02 0.19 0.11 0.19
MAX 2093.02 2102.50 1447.00 872.00 447.43 171.21 69.00 95.00 441.50 813.00 1378.00 1969.00 9735.50
MIN 1184.50 919.00 668.00 355.00 74.00 1.00 0.00 0.00 61.50 213.00 651.50 1055.50 6719.00
NO YRS 87 84 84 88 86 87 86 85 86 85 85 87 69