MITCHELL 2 N, SOUTH DAKOTA

Monthly Total Heating Degree Days

(395671)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 200303
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 1612.00 1438.50 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 3050.50
1894 0.00 z 0.00 z 0.00 z 0.00 z 175.50 25.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 200.50
1895 0.00 z 222.00 s 1000.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 303.00 w 1263.50 2263.50
1896 1379.50 a 1125.50 1214.50 500.00 168.00 57.50 11.50 31.50 277.50 598.00 1444.50 1235.50 8043.50
1897 1704.00 1429.50 1287.00 563.50 252.50 134.00 2.50 55.28 a 70.86 a 409.50 1015.00 1460.50 8384.15
1898 1272.50 1103.00 990.00 575.00 343.00 44.00 11.00 11.50 141.50 650.50 1091.50 1396.50 7630.00
1899 1431.50 1593.50 1451.32 a 625.50 296.00 46.50 2.50 1.50 221.50 455.00 672.50 1449.00 8246.32
1900 1274.50 1385.00 980.50 339.00 138.50 28.00 25.83 a 0.00 154.00 248.00 995.50 1156.00 6724.83
1901 1266.00 1288.50 901.00 474.00 191.00 30.50 0.00 a 1.03 a 201.50 357.00 907.50 1224.50 e 6842.53
1902 1346.50 1309.00 907.02 b 592.00 139.50 a 108.50 10.50 23.50 245.00 411.50 896.00 1593.00 7582.02
1903 1524.68 a 1499.50 1015.00 511.00 202.00 60.00 15.50 32.00 195.50 394.50 1024.00 1506.50 7980.18
1904 1653.50 1629.50 957.50 668.00 213.50 60.00 20.50 20.00 128.50 376.00 724.00 1198.15 a 7649.15
1905 1723.00 1450.81 a 770.50 542.50 337.00 70.00 14.43 b 0.00 71.38 a 605.00 788.28 a 1162.00 7534.90
1906 1358.50 1202.00 1313.50 420.52 a 207.50 33.50 13.00 13.50 116.90 a 484.50 921.72 a 1303.00 7388.14
1907 1747.76 b 1219.04 a 814.27 a 812.00 468.50 90.00 2.00 27.90 a 213.00 521.50 865.00 1164.00 7944.96
1908 1304.50 1278.50 956.50 467.59 a 286.00 94.50 12.50 34.00 89.00 534.50 871.55 a 1312.33 a 7241.47
1909 1515.26 b 1266.50 1069.00 735.50 261.50 63.10 a 14.00 6.50 153.50 552.50 938.50 1698.50 8274.36
1910 1635.50 1508.50 535.00 419.50 344.00 92.00 2.00 32.50 180.50 340.00 1021.50 1399.50 7510.50
1911 1509.00 1323.50 805.50 551.50 179.50 8.50 12.00 74.00 144.83 a 608.00 1165.50 1332.50 7714.33
1912 1842.95 a 1324.00 1220.00 470.50 190.00 112.00 28.50 10.00 306.72 a 453.50 765.50 1165.00 7888.67
1913 1451.12 b 1420.50 1182.00 481.50 308.50 43.97 a 1.55 a 1.50 185.00 574.50 741.00 1166.00 7557.14
1914 1269.50 1473.00 1011.50 551.50 189.10 a 18.00 0.00 52.50 120.00 396.80 a 765.00 1560.00 7406.90
1915 1585.50 1204.00 1369.00 322.00 386.97 b 120.50 48.50 79.50 204.50 451.00 820.00 1326.80 a 7918.27
1916 1866.00 1446.00 992.00 639.83 a 310.00 114.00 0.00 27.00 213.00 604.50 1014.00 1618.00 8844.33
1917 1638.50 1601.50 1163.50 696.50 354.00 106.00 12.83 b 34.50 177.00 815.00 721.50 1714.50 9035.33
1918 1834.50 1309.50 705.77 a 691.50 202.50 30.00 12.50 4.00 297.00 431.00 891.50 1097.00 7506.77
1919 1153.50 1337.00 1023.00 569.50 253.00 81.00 0.00 7.50 124.00 678.00 0.00 z 1505.00 6731.50
1920 1463.50 1194.50 1000.78 a 742.00 193.50 49.50 0.50 10.00 100.50 286.50 953.50 1285.00 7279.78
1921 1207.00 971.00 779.98 c 436.00 214.50 26.00 1.00 14.00 87.00 368.00 1076.00 1264.00 6444.48
1922 1501.00 1509.00 954.00 468.50 133.00 9.64 b 9.00 2.00 48.00 367.00 786.00 1430.00 7217.14
1923 1241.03 a 1301.50 1036.78 d 534.50 191.37 e 48.00 0.00 11.50 79.50 509.50 709.00 1043.00 6705.68
1924 1649.00 1171.50 1079.00 491.00 382.50 88.00 11.00 9.00 162.00 247.00 825.50 1590.50 7706.00
1925 1578.00 1095.00 782.00 265.00 289.00 28.00 10.00 0.00 62.00 789.00 892.00 1335.07 a 7125.07
1926 1391.50 961.00 974.50 489.50 104.00 48.00 1.55 a 0.00 198.10 a 399.00 1042.50 1370.50 6980.15
1927 1322.00 1037.04 a 869.00 532.50 286.50 86.00 4.50 29.00 181.50 299.50 1036.50 1779.00 7463.04
1928 1335.50 1105.50 833.50 679.50 131.00 59.00 0.00 13.50 165.00 444.00 894.00 1111.50 6772.00
1929 1833.00 1524.00 816.50 480.00 291.50 54.00 0.00 6.00 255.50 426.00 1031.00 1321.00 8038.50
1930 1765.50 837.00 935.50 403.00 275.38 a 40.50 4.50 0.00 a 114.00 507.00 799.50 1129.00 6810.88
1931 1084.00 834.50 956.87 a 445.00 302.00 13.00 0.50 9.62 b 71.00 338.00 834.50 1216.00 6104.99
1932 1575.50 1257.50 1198.00 440.50 155.50 0.00 1.50 1.00 101.50 525.50 892.00 1432.00 7580.50
1933 1100.50 1334.00 928.97 a 491.50 231.50 5.50 0.00 3.50 41.00 430.00 811.50 1299.50 6677.47
1934 1211.50 1066.50 933.00 430.00 47.50 3.50 4.00 21.50 192.50 284.00 762.00 1298.00 6254.00
1935 1468.50 930.50 796.50 612.00 329.50 76.50 0.00 40.00 96.00 488.00 1012.50 1333.00 7183.00
1936 1926.50 1980.00 932.07 a 619.00 113.00 35.50 0.00 0.00 74.50 484.50 940.00 1243.50 8348.57
1937 1924.50 1335.50 990.50 592.50 139.50 73.00 0.00 0.00 122.50 464.50 937.50 1362.50 7942.50
1938 1451.50 1279.50 760.00 439.00 234.50 22.50 0.00 0.00 a 58.00 214.50 965.00 1202.00 6626.50
1939 1185.00 1454.00 880.00 513.00 79.00 27.50 0.00 7.50 105.00 429.50 742.00 1007.50 6430.00
1940 1799.00 1238.50 1082.50 532.50 197.00 26.50 3.00 10.00 68.00 208.50 1052.50 1188.00 7406.00
1941 1394.50 1238.50 986.83 a 405.00 99.00 53.50 5.00 5.50 129.00 410.50 777.50 1057.00 6561.83
1942 1236.50 1178.50 901.50 325.50 302.00 36.50 1.50 7.50 238.00 427.00 846.00 1359.50 6860.00
1943 1619.50 1021.00 1106.18 a 404.50 287.50 64.00 0.00 10.00 138.50 388.00 910.34 a 1164.00 7113.53
1944 1130.00 1282.00 1186.50 617.00 140.50 62.00 1.03 a 20.50 92.50 365.28 a 877.00 1277.50 7051.82
1945 1322.00 1095.00 751.50 584.00 364.50 155.00 8.50 8.50 192.50 390.50 968.79 a 1586.00 7426.79
1946 1348.50 1138.00 715.00 303.00 290.00 71.50 0.00 a 25.50 162.00 537.50 988.50 1229.50 6809.00
1947 1206.50 1329.50 1071.00 615.50 310.00 64.00 6.00 1.50 150.50 274.50 1055.50 1342.00 7426.50
1948 1511.50 1306.50 1024.00 297.00 210.50 35.50 0.50 7.00 64.00 424.00 916.50 1376.50 7173.50
1949 1650.50 1396.50 993.00 458.50 130.00 27.00 0.00 13.50 206.00 407.50 628.00 1313.50 7224.00
1950 1801.00 1264.50 1216.50 707.00 292.00 43.00 6.00 19.78 b 107.00 354.00 980.50 1364.50 8155.78
1951 1499.00 1070.00 1322.67 a 695.50 188.50 137.00 31.50 21.00 266.00 516.00 1033.50 1571.00 8351.67
1952 1582.50 1094.50 1189.37 a 464.00 194.50 5.00 0.00 0.00 90.50 513.50 872.00 1231.50 7237.37
1953 1308.50 1132.50 904.50 661.50 250.50 26.50 4.00 1.50 81.00 273.50 772.50 1303.50 6720.00
1954 1629.00 730.50 1074.00 418.50 335.00 48.50 0.00 0.00 91.00 522.00 701.50 1279.55 b 6829.55
1955 1342.82 a 1395.50 1035.00 253.50 84.50 61.00 0.00 2.00 108.50 378.00 1148.50 1622.50 7431.82
1956 1626.00 1441.00 1081.50 652.00 181.00 12.00 0.00 12.50 123.50 257.00 891.50 1129.00 7407.00
1957 1659.00 1139.00 1015.00 562.00 268.50 40.86 a 0.00 11.50 165.00 475.00 904.00 1033.00 7272.86
1958 1211.00 1299.50 1112.00 523.00 129.50 79.00 5.50 10.00 81.00 359.50 828.50 1393.50 7032.00
1959 1605.50 1375.00 815.50 484.00 207.50 20.69 a 4.00 0.00 154.50 602.50 1127.00 1049.00 7445.19
1960 1509.00 1419.50 1405.00 508.00 190.00 21.50 0.00 1.00 130.00 357.00 803.50 1339.50 7684.00
1961 1496.00 1077.00 830.00 607.00 250.50 20.50 0.00 0.00 198.50 375.00 888.00 1460.00 7202.50
1962 1491.00 1269.50 1264.50 490.50 64.50 42.00 8.00 0.00 133.50 343.00 727.50 1246.50 7080.50
1963 1728.50 1141.00 758.00 435.00 189.50 6.00 0.00 10.50 66.00 213.50 829.00 1605.00 6982.00
1964 1304.50 1118.00 1172.00 434.50 113.50 28.00 0.00 46.50 148.50 416.50 940.00 1545.00 7267.00
1965 1619.00 1266.50 1290.50 488.00 135.50 13.50 0.00 17.00 350.00 337.50 882.50 1094.00 7494.00
1966 1759.50 1305.50 795.00 645.50 250.50 37.00 0.00 28.50 159.50 396.00 953.00 1307.50 7637.50
1967 1356.00 1267.50 800.00 465.50 328.50 26.50 22.50 12.00 82.00 430.50 863.00 1275.00 6929.00
1968 1482.50 1253.00 694.50 463.50 295.00 30.50 9.50 3.50 95.00 378.50 860.00 1455.00 7020.50
1969 1719.50 1194.00 1310.50 395.00 141.50 91.00 0.00 1.50 44.50 603.00 839.50 1283.00 7623.00
1970 1754.50 1084.00 1100.50 534.50 133.50 17.50 4.00 0.00 138.50 492.00 943.50 1476.00 7678.50
1971 1658.00 1245.50 1022.50 455.50 231.00 9.50 18.00 1.00 148.00 364.50 886.50 1412.50 7452.50
1972 1665.50 1424.00 959.00 531.50 204.00 22.00 14.00 12.00 122.50 0.00 z 0.00 z 1452.50 6407.00
1973 1448.22 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 280.00 f 955.34 a 1436.00 3839.56
1974 1543.50 1124.00 917.50 515.50 268.50 63.50 1.00 40.50 226.00 433.50 914.00 1312.50 7360.00
1975 1451.83 a 1364.00 1247.00 722.50 146.00 40.00 1.00 i 11.76 b 209.50 429.50 935.00 1374.00 7931.09
1976 1551.50 958.50 965.50 422.07 a 205.93 c 24.50 0.00 0.00 b 143.00 633.00 1057.00 1431.50 7392.50
1977 1809.88 a 1052.00 936.50 361.00 51.50 5.50 0.00 18.50 114.50 519.50 965.50 1473.50 7307.88
1978 1995.50 1580.50 1085.00 594.50 220.50 50.50 10.50 12.50 90.00 471.20 a 1029.23 d 1475.50 8615.43
1979 1922.00 1652.00 1090.50 637.00 334.00 54.00 4.00 24.50 80.50 507.00 996.00 1144.00 8445.50
1980 1476.00 1368.00 1089.50 462.00 185.50 16.00 0.00 11.50 108.50 527.00 761.00 1321.50 7326.50
1981 1297.00 1075.00 821.50 335.50 274.50 14.50 14.50 f 0.50 103.50 541.98 a 742.00 1362.50 6568.48
1982 1906.50 1295.00 1044.50 614.50 179.50 96.50 1.00 21.00 171.50 523.50 1066.50 1212.50 8132.50
1983 1321.50 1045.50 981.00 698.50 289.50 70.50 0.50 0.00 151.50 473.00 892.50 1963.50 7887.50
1984 1436.00 1036.00 751.50 j 567.00 283.50 23.00 1.00 4.00 267.50 489.50 900.00 1409.00 6416.50
1985 1633.00 1303.50 842.00 395.00 105.00 88.00 3.50 24.50 246.50 497.00 1299.00 1655.50 8092.50
1986 1309.00 1316.50 809.50 523.97 a 172.50 5.00 0.00 35.50 142.50 444.00 1027.50 1150.00 6935.97
1987 1206.00 852.00 902.50 366.50 97.00 11.00 5.50 48.00 101.50 611.50 786.50 1199.00 6187.00
1988 1733.00 1457.50 870.50 547.50 88.50 0.50 5.50 17.50 119.00 548.50 852.00 1247.50 7487.50
1989 1185.00 1499.00 1129.00 474.00 221.00 74.00 3.50 6.50 100.50 j 317.50 k 961.50 1641.00 7194.50
1990 1083.00 1092.00 850.50 568.50 274.50 37.50 12.50 8.00 118.00 529.00 831.50 1525.00 6930.00
1991 1603.00 960.50 897.00 478.50 217.00 3.00 0.50 1.50 183.00 571.50 1175.50 1186.50 7277.50
1992 1160.00 1005.50 827.50 651.50 203.50 50.00 46.50 69.50 144.00 515.00 1020.00 1418.00 7111.00
1993 1594.00 1390.00 1060.50 609.50 231.00 90.00 2.50 12.50 267.00 538.50 1047.00 1315.50 8158.00
1994 1790.50 1512.50 872.00 556.50 176.00 17.00 14.50 25.00 129.50 408.50 868.50 1343.00 7713.50
1995 1497.50 1120.50 1015.00 729.00 314.00 55.00 7.50 6.50 199.00 545.50 1097.50 1300.50 7887.50
1996 1677.50 1254.00 1226.50 670.50 334.50 29.00 10.00 1.00 206.00 504.00 1223.50 1688.00 8824.50
1997 1768.50 1253.00 1031.00 683.50 354.50 7.00 19.00 6.00 109.00 456.00 1059.00 1139.00 7885.50
1998 1434.78 a 903.50 1151.50 544.00 144.00 107.00 2.50 0.00 60.00 447.50 831.50 1178.00 6804.28
1999 1527.00 923.00 891.77 a 533.79 a 188.50 56.38 a 4.81 b 5.00 189.50 517.00 647.07 a 1126.00 6609.82
2000 1346.43 a 988.07 a 758.00 529.14 a 184.00 67.00 19.50 4.00 156.00 417.00 1202.00 1716.50 7387.64
2001 1438.00 1517.00 1213.00 547.50 149.00 38.00 8.00 6.50 150.00 a 546.78 b 661.03 a 1269.00 7543.81
2002 1253.00 975.50 1326.00 551.50 366.50 29.50 3.00 17.00 136.00 691.50 937.00 1168.50 7455.00
2003 1439.50 1292.50 1004.50 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 3736.50
Period of Record Statistics
MEAN 1504.39 1247.62 999.21 524.83 222.17 47.88 6.36 14.34 146.62 455.58 918.49 1343.19 7422.85
S.D. 218.70 206.37 176.19 113.81 84.97 33.86 9.04 16.53 63.51 115.34 142.24 181.36 587.47
SKEW 0.09 0.18 0.27 -0.01 0.19 0.84 2.38 1.81 0.71 0.28 0.60 0.66 0.30
MAX 1995.50 1980.00 1451.32 812.00 468.50 155.00 48.50 79.50 350.00 815.00 1444.50 1963.50 9035.33
MIN 1083.00 730.50 535.00 253.50 47.50 0.00 0.00 0.00 41.00 208.50 628.00 1007.50 6104.99
NO YRS 109 108 107 106 107 107 104 106 105 104 105 108 100