HOT SPRINGS, SOUTH DAKOTA

Monthly Total Heating Degree Days

(394007)

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
1894 0.00 z 1232.52 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 577.50 k 1232.52
1895 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
1896 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
1897 1350.50 1096.15 a 1054.00 586.00 195.00 94.00 5.50 12.50 90.50 504.00 973.00 1262.14 c 7223.29
1898 1279.02 b 913.50 1093.78 a 571.15 d 388.53 a 71.38 a 10.00 14.50 247.24 a 638.00 970.00 1303.55 a 7500.66
1899 1388.00 1602.50 1338.50 656.50 430.00 145.50 11.88 a 25.83 a 200.17 a 412.00 m 772.50 1388.80 a 7960.19
1900 0.00 z 1187.93 a 820.50 447.50 154.50 14.50 20.50 0.00 154.00 433.00 905.00 826.00 h 4137.43
1901 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
1902 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
1903 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
1904 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
1905 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
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 1157.50 1069.50 894.50 462.93 a 344.00 96.00 12.00 46.00 116.50 563.17 a 907.50 1239.50 6909.10
1909 1532.43 a 1120.00 987.35 a 679.14 a 339.50 52.00 3.50 0.00 135.00 502.00 898.00 1617.50 7866.42
1910 1378.50 1237.00 518.00 388.97 a 330.00 66.50 7.50 45.47 a 144.83 a 417.50 880.34 a 1308.72 a 6723.32
1911 1313.37 a 1044.00 691.00 626.50 253.00 3.50 14.50 61.50 125.00 654.00 1089.50 1327.00 7202.87
1912 1578.50 1127.00 1293.00 529.00 292.00 95.50 16.53 a 21.00 343.45 a 554.00 833.00 1122.00 7804.98
1913 1395.50 1344.50 1137.00 461.50 349.78 a 15.00 e 6.00 3.00 174.00 600.00 687.50 1060.00 7233.78
1914 976.50 1201.00 876.50 564.00 262.50 13.00 2.00 22.50 72.00 379.00 688.50 1411.00 6468.50
1915 1373.00 1015.50 1192.50 412.50 446.00 176.50 92.50 44.00 193.50 364.50 840.50 1129.50 7280.50
1916 1675.00 1109.00 741.50 630.50 419.69 e 177.00 0.00 23.50 160.50 552.50 963.00 1511.00 7963.19
1917 0.00 z 0.00 z 1085.00 695.50 0.00 z 130.50 9.00 26.00 124.50 620.00 628.50 1384.31 b 4703.31
1918 1531.00 1059.50 651.00 728.00 362.00 61.00 25.50 36.00 351.00 510.50 1048.93 b 1211.50 7575.93
1919 1148.00 1270.50 1036.00 687.50 356.50 122.00 1.00 1.50 166.50 860.50 1181.50 1386.50 8218.00
1920 1119.50 1016.00 940.50 837.50 331.50 101.00 13.00 15.00 130.50 408.50 1007.00 1131.00 7051.00
1921 1052.00 910.00 755.00 585.50 287.00 32.00 14.47 a 15.50 134.00 349.78 a 921.00 1113.00 6169.25
1922 1455.50 1247.50 815.00 631.50 271.50 43.00 33.00 0.50 41.00 401.50 804.50 1285.00 7029.50
1923 1035.00 1122.50 1018.50 595.50 289.00 48.00 0.00 7.00 118.00 621.50 677.50 1092.50 6625.00
1924 1431.50 928.50 1180.00 539.50 375.50 57.50 2.50 8.00 144.50 327.00 798.00 1465.50 7258.00
1925 1244.00 803.50 725.50 410.00 225.00 70.00 15.00 14.50 102.50 827.00 828.50 1057.50 6323.00
1926 1118.00 775.00 886.00 537.50 224.50 68.00 2.50 10.50 204.50 444.00 876.00 1156.00 6302.50
1927 1269.00 891.00 875.50 698.50 376.00 128.00 25.00 53.50 250.00 413.00 859.00 1505.50 7344.00
1928 1116.00 1006.50 861.50 656.50 191.50 164.00 8.00 17.00 179.00 520.50 807.50 1104.00 6632.00
1929 1548.50 1349.50 820.50 543.50 355.50 106.50 19.50 0.00 359.00 477.50 929.50 1140.50 7650.00
1930 1635.00 839.00 1003.50 382.50 391.50 122.00 2.50 8.50 163.50 593.00 804.00 1039.00 6984.00
1931 975.00 827.50 937.00 571.00 336.00 26.50 15.50 11.37 a 67.00 402.00 860.00 1073.50 6102.37
1932 1372.00 1044.00 1263.50 509.50 292.50 91.50 7.50 22.50 226.00 697.50 884.50 1416.00 7827.00
1933 1120.00 1236.00 752.00 556.00 316.50 1.00 0.00 29.00 53.00 375.50 665.50 964.50 6069.00
1934 947.50 864.50 818.00 438.50 47.50 13.50 0.00 28.00 226.00 290.50 656.00 1083.00 5413.00
1935 1136.50 817.50 785.50 648.00 450.50 91.50 0.00 23.00 101.50 464.00 920.50 1067.50 6506.00
1936 1313.50 1686.50 828.00 612.00 118.50 49.50 0.00 3.50 98.50 449.00 800.50 1110.00 7069.50
1937 1704.48 a 1061.00 975.50 552.50 181.00 100.00 0.00 0.00 93.50 432.50 860.00 1107.50 7067.98
1938 1101.50 946.50 730.00 500.00 276.00 35.00 0.00 1.00 43.00 265.00 886.00 1069.00 5853.00
1939 980.00 1238.50 814.00 489.00 129.00 78.50 0.00 30.00 88.50 435.50 721.00 882.50 5886.50
1940 1502.50 1044.50 846.00 603.00 206.50 39.00 4.50 2.00 59.50 294.50 928.00 1044.50 6574.50
1941 1117.00 926.50 897.00 517.50 114.50 99.00 6.00 4.00 177.00 488.00 751.00 1037.50 6135.00
1942 1194.00 1118.50 865.50 408.50 408.00 75.52 a 5.00 11.50 225.50 428.00 763.50 1047.50 6551.02
1943 1313.50 823.00 1143.50 370.00 394.00 120.50 0.00 3.00 147.50 409.00 794.00 1048.50 6566.50
1944 1139.50 1130.00 1093.00 638.00 201.00 134.50 6.00 14.98 a 124.00 387.00 877.00 1195.00 6939.98
1945 1188.00 1081.00 837.50 698.50 356.50 220.00 16.00 17.00 279.50 391.00 830.50 1302.00 7217.50
1946 1113.00 901.50 674.00 328.50 386.00 85.50 0.00 47.00 185.17 a 613.00 895.86 a 1063.00 6292.53
1947 1172.50 1183.00 1063.00 595.50 325.50 132.00 2.00 2.00 140.50 319.82 a 1055.50 1063.50 7054.82
1948 1232.00 1201.50 1049.00 442.00 309.50 92.00 7.50 20.00 73.00 455.50 930.52 a 1232.50 7045.02
1949 1647.50 1220.00 934.50 441.50 246.50 66.72 a 0.00 12.50 187.00 553.50 622.50 1229.15 a 7161.37
1950 1520.00 911.00 1109.50 733.97 a 439.00 96.00 29.50 31.00 222.00 383.00 938.50 1104.63 a 7518.10
1951 1384.00 1047.00 1191.00 760.50 339.50 254.50 72.00 21.18 a 291.00 572.50 990.50 1367.10 a 8290.78
1952 1276.50 1032.00 1109.00 514.14 a 272.28 a 5.00 18.50 13.00 97.00 508.00 971.00 1107.00 6923.42
1953 981.67 a 995.00 844.00 775.00 386.00 44.50 3.50 3.50 108.46 d 339.50 701.00 1066.40 a 6248.53
1954 1246.00 667.00 1100.50 516.50 346.00 77.00 0.00 0.00 99.50 534.50 694.00 975.00 6256.00
1955 1235.00 1213.50 1080.00 443.50 198.00 122.50 0.00 4.50 175.00 418.50 1137.00 1196.00 7223.50
1956 1189.00 1118.00 890.00 746.50 253.50 6.50 10.50 38.00 131.00 402.50 897.41 a 1060.50 6743.41
1957 1597.02 a 981.56 a 925.00 726.00 350.50 102.50 0.00 6.50 206.50 542.50 905.00 949.50 7292.57
1958 1069.50 1121.00 1129.00 677.68 b 155.00 105.50 22.50 9.50 119.00 452.50 864.00 1175.42 a 6900.60
1959 1272.50 1137.50 873.88 b 697.78 c 375.10 a 46.50 12.00 4.28 b 253.00 589.50 1077.00 993.50 7332.53
1960 1259.00 1248.50 1008.00 544.00 312.50 60.00 3.50 15.00 137.50 444.00 840.50 1133.50 7006.00
1961 1117.00 906.00 815.00 664.00 334.00 49.00 8.50 0.00 312.00 495.50 921.50 1277.00 6899.50
1962 1359.00 1103.00 1049.00 480.00 227.50 99.50 5.00 24.00 150.50 392.50 732.00 1070.00 6692.00
1963 1573.00 895.50 822.00 584.00 260.00 32.00 2.50 5.50 51.50 252.00 762.50 1276.50 6517.00
1964 1127.50 1053.50 1064.50 565.50 265.00 92.50 0.00 47.50 188.50 470.00 912.00 1280.50 7067.00
1965 1077.00 1059.50 1291.00 490.50 271.00 49.50 2.50 20.50 423.50 347.50 765.50 997.50 6795.50
1966 1432.00 1187.00 784.50 699.50 223.50 86.00 0.00 63.00 144.00 476.37 a 832.50 1190.50 7118.87
1967 1109.50 944.50 827.50 511.00 418.00 123.00 20.00 23.50 117.50 409.00 887.50 1305.50 6696.50
1968 1240.00 994.50 751.00 621.50 409.50 58.00 19.50 37.50 159.50 402.00 846.00 1334.00 6873.00
1969 1395.00 1034.50 1070.00 411.50 213.50 149.50 2.50 1.50 43.50 689.50 790.00 1120.50 6921.50
1970 1302.00 874.00 1050.00 696.50 220.50 67.50 0.00 0.00 213.50 613.00 845.50 1180.50 7063.00
1971 1298.50 1086.00 937.00 529.50 306.50 37.50 29.00 0.00 237.50 557.50 854.00 1182.50 7055.50
1972 1392.00 998.50 753.00 565.50 265.50 31.50 46.00 26.50 140.00 499.00 982.50 1386.50 7086.50
1973 1180.50 944.50 782.00 637.00 330.50 66.50 18.00 0.50 217.00 376.50 941.00 1127.00 6621.00
1974 1316.00 855.50 798.00 491.50 264.00 83.50 0.00 58.00 269.50 436.50 855.50 1130.50 6558.50
1975 1253.50 1218.00 1075.00 688.50 337.00 90.50 4.50 10.50 223.00 482.00 946.00 1047.00 7375.50
1976 1253.50 885.50 942.00 517.50 292.00 94.50 0.00 11.00 138.50 567.00 953.00 1092.00 6746.50
1977 1450.00 810.00 850.00 431.50 137.00 10.00 2.00 25.00 130.00 456.50 913.50 1225.00 6440.50
1978 1558.50 1336.00 897.50 552.00 322.50 83.50 8.00 47.00 136.00 470.50 1036.00 1425.00 7872.50
1979 1701.00 1169.00 873.00 564.00 364.50 92.00 3.00 27.50 75.00 408.00 966.50 966.00 7209.50
1980 1319.00 1031.05 a 985.80 a 541.00 304.00 39.60 e 1.00 30.00 169.50 485.00 788.00 1023.00 6716.95
1981 933.50 974.50 767.50 348.50 302.50 44.50 18.00 8.50 77.50 484.00 714.50 1137.50 5811.00
1982 1517.50 1069.00 904.50 641.50 310.50 154.00 0.00 10.50 181.50 523.50 934.50 1102.00 7349.00
1983 1031.00 776.50 853.00 724.50 422.50 96.00 3.00 0.00 150.50 449.50 b 897.00 1715.50 7119.00
1984 1170.50 872.50 878.00 663.50 312.00 78.00 1.50 0.00 249.00 536.00 788.00 1229.50 6778.50
1985 1305.50 1134.50 844.50 392.50 140.50 104.00 6.50 25.00 269.50 516.00 1331.50 1313.50 7383.50
1986 961.00 1075.41 a 622.50 547.50 322.50 25.00 0.00 11.50 226.55 a 463.50 946.50 1028.00 6229.96
1987 1044.00 858.00 895.00 410.00 165.50 39.50 10.50 43.00 154.50 492.50 732.00 1109.00 5953.50
1988 1257.50 1017.00 795.00 490.00 195.50 10.00 5.50 12.00 128.00 428.00 822.00 1061.75 a 6222.25
1989 1018.00 1316.00 933.50 531.50 231.50 83.00 3.00 0.00 163.00 462.00 793.00 1323.50 6858.00
1990 961.00 986.50 834.50 572.50 333.50 40.00 21.00 0.00 82.00 454.50 682.00 1363.50 6331.00
1991 1375.50 757.00 754.00 537.00 243.50 13.50 1.00 0.00 146.50 501.00 968.00 1011.50 6308.50
1992 996.50 775.50 683.50 495.00 198.50 77.50 46.00 62.00 120.00 421.00 931.50 1364.50 6171.50
1993 1398.00 1253.00 821.50 552.00 240.00 144.00 31.50 25.50 252.50 547.00 1005.00 1055.50 7325.50
1994 1238.00 1187.00 727.50 534.50 156.50 19.50 9.50 6.50 85.50 480.50 842.50 1069.00 6356.50
1995 1079.50 906.00 877.50 698.50 405.00 138.00 14.00 6.50 182.50 537.50 824.00 1179.00 6848.00
1996 1405.00 1007.00 1063.00 540.00 373.50 45.00 0.00 2.00 190.00 485.50 1115.00 1333.50 7559.50
1997 1277.00 903.00 772.50 708.50 318.00 41.00 21.50 22.50 123.50 435.00 900.50 1089.50 6612.50
1998 1150.00 825.00 1030.00 591.50 229.00 187.50 1.50 0.00 69.00 510.00 790.50 1136.00 6520.00
1999 1128.50 736.00 756.00 591.00 312.00 92.00 14.00 7.50 269.00 442.50 604.00 959.00 5911.50
2000 1097.50 871.50 741.00 552.50 223.00 88.00 4.50 0.00 156.00 451.00 1141.00 1356.50 6682.50
2001 1064.50 1217.50 876.50 522.00 256.00 113.50 0.00 1.50 93.00 480.00 749.50 1115.50 6489.50
2002 1155.50 909.00 1159.50 528.00 376.50 47.50 0.00 7.50 154.00 696.50 811.50 1025.00 6870.50
2003 1062.00 1074.50 825.00 480.50 298.50 116.00 0.00 13.50 189.00 378.00 1005.50 1015.50 6458.00
2004 1174.50 981.50 697.00 455.00 245.00 104.50 18.50 47.50 124.50 425.00 796.00 1010.50 6079.50
2005 1207.00 847.50 762.50 502.50 349.50 72.50 3.50 10.00 84.00 447.00 711.50 1175.00 6172.50
2006 839.00 1017.00 939.00 388.00 236.50 17.50 0.00 13.50 217.50 569.50 839.50 1054.50 6131.50
2007 1214.00 1132.50 567.50 0.00 z 194.00 40.00 0.00 10.50 107.50 393.00 777.50 1247.50 5684.00
2008 1259.00 1047.50 838.00 604.50 0.00 z 0.00 z 3.00 18.00 168.00 504.50 781.50 1338.00 6562.00
2009 1126.50 900.00 827.50 629.00 269.00 140.50 13.00 27.00 110.00 732.50 691.00 1428.50 6894.50
2010 1227.00 1147.50 716.00 526.00 382.00 73.50 9.50 7.00 100.50 343.00 932.00 1136.00 6600.00
2011 1284.50 1152.15 a 894.00 573.00 402.00 72.50 0.00 0.00 121.50 429.50 823.00 1099.00 6851.15
2012 1054.50 1029.00 499.00 373.50 230.50 17.00 0.00 6.00 90.00 476.00 751.00 1153.00 5679.50
2013 1196.00 930.00 864.00 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 2990.00
Period of Record Statistics
MEAN 1250.60 1040.14 902.69 560.62 291.64 78.86 9.61 16.75 159.97 478.28 864.78 1178.62 6820.11
S.D. 189.60 171.85 165.41 106.40 84.75 48.28 14.04 16.28 73.35 105.82 126.06 153.92 560.56
SKEW 0.42 0.67 0.32 0.08 -0.32 0.76 3.13 1.10 0.93 0.88 0.58 0.85 0.14
MAX 1704.48 1686.50 1338.50 837.50 450.50 254.50 92.50 63.00 423.50 860.50 1331.50 1715.50 8290.78
MIN 839.00 667.00 499.00 328.50 47.50 1.00 0.00 0.00 41.00 252.00 604.00 882.50 5413.00
NO YRS 108 110 110 108 107 108 109 109 109 108 109 108 104