MADISON 2SE, SOUTH DAKOTA

Monthly Total Heating Degree Days

(395090)

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
1961 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 426.77 a 1004.50 1561.50 2992.77
1962 1617.50 1367.50 1295.00 617.50 152.00 66.00 16.50 9.00 188.79 a 411.00 793.45 a 1322.50 7856.74
1963 1820.50 1274.00 837.50 491.50 251.00 18.50 0.00 23.00 76.50 206.50 825.00 1672.93 b 7496.93
1964 1319.50 1155.00 1231.50 522.00 183.00 47.50 0.00 72.00 184.50 319.50 g 995.00 1588.00 7298.00
1965 1698.50 1404.50 1398.50 578.00 176.00 16.50 2.00 27.00 403.00 389.00 943.00 1166.00 8202.00
1966 1801.50 1363.50 814.78 a 725.50 312.00 51.50 0.00 49.00 182.50 468.00 1033.00 1396.00 8197.28
1967 1462.50 1376.85 b 893.83 a 560.00 377.00 50.50 43.50 26.50 163.00 536.00 967.00 1354.50 7811.18
1968 1539.00 1370.50 739.50 523.00 379.50 56.50 16.50 23.00 146.50 470.00 918.50 1526.00 7708.50
1969 1802.50 1292.00 1431.00 527.50 206.50 144.50 3.50 5.00 113.00 658.50 920.50 1368.00 8472.50
1970 1850.00 1227.50 1210.00 632.50 182.00 43.00 6.00 3.00 190.00 540.00 1006.50 1506.00 8396.50
1971 1760.00 1326.50 1104.00 488.00 262.50 16.00 33.50 16.00 183.50 394.50 966.00 1506.50 8057.00
1972 1774.50 1542.00 1065.00 634.00 244.50 40.50 22.00 37.50 179.00 594.00 1028.00 1571.00 8732.00
1973 1487.00 1213.00 817.50 576.50 238.50 32.50 2.50 0.00 184.50 332.00 961.00 1503.50 7348.50
1974 1604.00 1187.00 973.50 485.50 315.00 67.50 1.50 46.50 215.50 382.00 928.00 1308.50 7514.50
1975 1508.50 1423.00 1265.00 763.50 183.50 59.00 11.00 4.50 239.50 398.50 921.50 1408.00 8185.50
1976 1590.00 1040.50 985.00 407.00 228.00 16.50 4.00 4.00 150.00 655.50 1114.50 1474.50 7669.50
1977 1902.00 1091.00 938.50 358.50 49.50 11.00 1.00 29.50 132.50 511.50 1055.00 1556.00 7636.00
1978 1973.00 1603.50 1075.00 602.00 230.00 59.50 12.00 17.50 87.00 467.00 1016.00 1584.50 8727.00
1979 2020.00 1644.00 1196.00 693.00 397.50 57.78 c 8.50 52.50 132.50 630.33 a 1101.00 1243.62 a 9176.73
1980 1571.50 1447.50 1245.50 502.50 233.53 a 39.00 10.85 a 26.00 180.00 635.00 866.50 1439.50 8197.38
1981 1404.50 1183.00 870.00 419.00 321.50 38.00 24.50 16.50 144.50 599.50 840.00 1529.00 7390.00
1982 2027.92 a 1354.89 a 1121.50 722.00 228.00 144.00 3.50 45.50 219.50 588.00 1123.50 1300.00 8878.31
1983 1473.50 1163.50 1082.50 774.00 376.50 111.50 5.50 0.00 217.00 549.50 995.50 2047.50 8796.50
1984 1608.50 1158.00 1324.00 628.50 349.50 37.50 9.00 15.00 321.00 555.50 972.00 1526.00 8504.50
1985 1777.50 1430.50 933.62 a 483.50 161.00 147.50 15.00 79.50 297.00 608.00 1384.50 1804.00 9121.62
1986 1492.00 1462.50 1011.50 589.00 261.00 26.50 6.00 68.50 208.50 524.50 1155.00 1252.00 8057.00
1987 1344.50 942.50 966.50 415.00 139.50 31.00 9.50 80.00 159.50 722.00 871.50 1292.00 6973.50
1988 1804.50 1575.50 1007.50 627.00 125.50 5.50 5.00 31.00 141.50 622.00 940.50 1361.00 8246.50
1989 1311.00 1608.00 1194.00 556.50 234.50 79.50 4.50 11.00 187.50 b 481.50 1059.50 1706.00 8433.50
1990 1197.00 1199.50 929.50 374.00 h 308.00 55.50 24.00 17.50 124.00 549.73 a 903.00 1567.00 6874.73
1991 1650.50 0.00 z 930.00 498.50 240.50 9.50 6.50 6.50 209.00 596.00 1233.50 1256.50 6637.00
1992 1263.50 1087.50 880.50 725.69 a 198.50 69.00 72.00 82.00 196.00 548.50 1089.50 1492.50 7705.19
1993 1682.00 1481.50 1216.50 664.00 272.00 112.00 3.50 21.50 294.00 607.50 1099.50 1434.61 d 8888.61
1994 1875.50 1552.50 923.00 607.50 186.50 19.00 15.00 33.50 117.00 436.50 875.00 1359.50 8000.50
1995 1564.00 1227.00 1040.50 755.50 344.00 69.00 15.00 9.50 217.00 580.50 1162.50 1363.00 8347.50
1996 0.00 z 0.00 z 385.50 u 727.00 404.00 56.50 17.00 17.50 260.50 544.50 1288.00 1706.00 5021.00
1997 1818.67 a 1354.00 1184.50 747.50 424.00 11.50 25.00 30.50 135.00 514.50 1133.00 1216.50 8594.67
1998 1506.50 926.00 1187.50 566.00 157.50 119.50 6.50 3.00 91.00 486.50 908.50 1259.50 7218.00
1999 1663.50 1024.50 1003.00 592.00 229.50 86.00 8.50 6.00 218.50 563.00 712.00 1257.00 7363.50
2000 1468.00 1050.50 795.50 620.00 217.50 97.00 26.00 6.00 190.00 460.00 1205.50 1807.82 a 7943.82
2001 1493.50 1556.00 1256.50 583.50 211.50 75.00 6.50 18.00 198.50 591.50 656.50 1320.50 7967.50
2002 1372.00 1031.50 1413.00 618.50 419.50 37.50 10.00 35.50 181.00 775.50 994.50 1245.50 8134.00
2003 1512.50 0.00 z 1083.50 563.00 333.00 87.50 3.00 18.50 241.00 486.50 1069.50 1265.50 6663.50
2004 1608.00 1365.00 890.50 540.50 317.50 121.50 30.50 104.50 126.00 547.50 867.00 1283.00 7801.50
2005 1615.50 1090.00 1060.00 480.50 317.00 16.50 8.50 21.00 91.00 512.50 883.00 1509.00 7604.50
2006 1134.00 1232.50 1016.00 448.00 261.50 34.00 3.50 8.50 286.00 638.50 960.50 1208.00 7231.00
2007 1481.50 1492.00 895.50 677.50 145.50 30.50 5.50 19.50 181.50 438.50 963.50 1574.50 7905.50
2008 1715.50 1518.36 a 940.50 g 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 3233.86
2009 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
2010 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 163.50 417.50 941.00 1564.50 3086.50
2011 1777.50 1451.50 1211.00 688.00 330.50 78.00 0.00 14.00 248.50 446.00 909.50 1226.50 8381.00
2012 1346.50 1174.50 597.00 467.50 170.00 33.00 0.00 39.50 187.50 620.00 923.00 1383.50 6942.00
2013 1482.00 1304.50 1233.59 b 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 4020.09
Period of Record Statistics
MEAN 1603.54 1305.25 1057.81 584.54 255.97 56.93 11.75 27.73 187.43 524.85 989.68 1443.50 8042.23
S.D. 210.41 189.02 187.04 104.49 86.82 37.85 13.24 24.57 63.74 104.32 136.69 182.35 561.71
SKEW -0.01 -0.11 -0.01 -0.01 0.14 0.84 2.42 1.32 0.87 -0.35 0.40 0.88 0.05
MAX 2027.92 1644.00 1431.00 774.00 424.00 147.50 72.00 104.50 403.00 775.50 1384.50 2047.50 9176.73
MIN 1134.00 926.00 597.00 358.50 49.50 5.50 0.00 0.00 76.50 206.50 656.50 1166.00 6942.00
NO YRS 49 47 48 47 48 48 48 48 49 49 50 50 43