MANITOWOC, WISCONSIN

Monthly Total Heating Degree Days

(475017)

Base Temperature = 65 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 201210
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 1695.50 1377.50 1169.50 764.00 519.00 116.00 43.00 t 82.50 220.50 197.00 t 980.50 1383.50 8308.50
1894 1355.00 1289.50 920.50 659.50 468.00 89.00 19.63 a 59.00 165.00 545.08 a 1025.50 1102.00 7697.72
1895 1574.00 1451.00 1150.00 664.50 435.50 100.50 79.00 35.00 176.00 710.00 967.00 1226.50 8569.00
1896 1319.50 1212.50 1178.00 604.00 245.50 80.50 37.50 37.00 293.00 642.50 989.50 1155.00 7794.50
1897 1369.50 1110.50 1132.00 705.50 431.50 230.00 5.00 55.00 133.00 379.50 959.50 1402.50 7913.50
1898 1254.50 1162.50 953.00 691.50 381.50 131.00 55.00 47.50 166.00 543.50 905.50 1419.50 7711.00
1899 1489.00 1481.00 1319.50 647.00 377.00 115.00 27.50 33.00 260.50 427.50 726.50 1245.50 8149.00
1900 1259.50 1394.50 1221.00 604.50 337.00 151.50 62.50 7.50 150.50 335.00 962.00 1188.00 7673.50
1901 1376.00 1418.50 1140.50 639.00 401.50 139.50 13.50 11.50 212.00 478.00 927.00 1345.50 8102.50
1902 1338.00 1243.50 912.50 668.00 293.50 181.11 c 22.50 54.50 310.86 a 499.50 679.00 1249.00 7451.97
1903 1417.00 1219.00 869.00 531.00 g 408.88 b 137.50 22.50 82.50 220.50 500.50 953.50 1496.00 7326.88
1904 1627.00 1605.50 1091.95 b 816.00 368.00 135.00 62.00 99.00 219.50 502.50 776.00 1321.00 8623.45
1905 1552.58 a 1401.00 1005.50 679.00 462.00 166.00 47.50 32.50 108.50 555.50 867.50 1158.22 b 8035.81
1906 1153.72 a 1227.00 858.00 k 628.00 273.00 m 93.00 j 32.00 15.50 87.50 528.00 838.00 797.00 k 4509.72
1907 1440.00 1227.00 914.00 876.50 605.50 154.50 27.00 86.00 212.50 532.17 a 837.41 a 222.00 y 6912.58
1908 1206.13 d 623.00 o 967.00 616.50 337.50 114.31 a 13.50 1.50 w 107.00 531.59 d 812.00 1258.50 5964.03
1909 1328.50 1098.50 1050.50 793.50 441.00 137.00 42.50 27.50 191.00 604.50 697.00 1448.00 7859.50
1910 1407.50 1306.00 755.00 628.00 499.50 141.50 13.00 21.50 187.00 379.00 1000.50 1329.50 7668.00
1911 1357.00 1054.00 958.50 724.50 307.50 47.00 34.21 b 64.50 169.00 417.00 f 995.50 1093.86 c 6805.56
1912 1948.87 a 1427.00 1279.00 641.50 396.00 141.00 64.50 84.50 190.00 465.00 805.50 1101.50 8544.37
1913 1333.00 1347.00 1155.00 665.50 431.42 a 147.00 46.50 27.00 201.50 509.50 718.50 987.50 7569.42
1914 1163.50 1440.00 1054.00 766.00 320.00 152.50 9.50 51.00 188.00 320.00 815.50 1444.00 7724.00
1915 1430.50 1004.00 1065.00 489.00 479.00 222.50 70.00 122.00 160.00 434.00 783.00 1201.00 7460.00
1916 1339.00 1412.50 1212.50 664.00 383.50 211.50 6.00 22.00 250.00 551.50 885.00 1418.50 8356.00
1917 1526.00 1511.50 1045.50 772.00 502.50 232.50 56.00 83.00 254.00 715.50 805.50 1451.00 8955.00
1918 1737.00 1278.00 900.00 754.50 348.50 153.00 69.50 12.00 279.00 404.50 766.50 1017.50 7720.00
1919 1215.50 1104.00 982.50 681.72 a 400.50 39.50 6.00 27.00 110.00 480.00 931.50 1536.00 7514.22
1920 1637.00 1323.50 1041.00 820.50 434.50 122.00 78.00 70.00 116.50 312.50 870.00 1124.00 7949.50
1921 1178.50 1048.50 876.50 551.00 301.00 84.00 1.50 33.00 72.00 0.00 z 930.00 1230.00 6306.00
1922 1460.50 1262.00 995.00 685.00 287.50 74.00 23.00 34.00 138.50 445.50 721.00 1287.50 7413.50
1923 1291.00 1373.50 1243.00 730.50 445.00 102.00 17.50 57.50 202.50 541.50 752.50 929.50 7686.00
1924 1661.00 1219.04 a 1095.50 698.00 520.00 189.50 81.00 112.50 319.50 386.50 856.00 1498.00 8636.54
1925 1384.00 1146.00 982.00 565.50 463.00 104.50 32.00 17.00 101.50 721.50 891.50 1358.00 7766.50
1926 1346.50 1137.00 1222.00 760.50 389.00 178.00 41.50 57.50 206.50 563.50 960.50 1339.50 8202.00
1927 1422.00 1015.50 891.50 687.50 435.50 204.50 57.50 90.50 146.00 379.50 812.00 1006.00 h 6142.00
1928 1325.00 1194.18 a 1057.50 797.50 392.50 191.38 a 13.00 30.50 253.00 472.00 781.50 1109.50 7617.56
1929 1696.00 1365.00 894.50 612.00 476.00 196.50 35.13 a 36.00 197.50 457.50 950.50 1209.00 8125.63
1930 1511.77 a 1020.00 1019.50 694.00 372.50 75.00 b 34.10 a 17.50 149.50 571.50 757.50 1201.00 7423.87
1931 1186.50 963.00 1009.57 a 592.50 397.32 a 114.50 5.00 23.00 73.00 340.50 643.50 950.00 6298.38
1932 1100.00 1084.50 1188.50 706.50 361.00 53.50 24.00 8.00 163.50 515.00 919.00 1258.50 7382.00
1933 1078.50 1248.00 1064.00 721.50 394.50 46.00 0.00 24.50 87.00 513.00 960.50 1263.50 7401.00
1934 1142.35 a 1294.50 1141.00 665.00 230.50 46.00 15.00 61.50 170.00 428.00 714.50 1267.38 a 7175.73
1935 1466.00 1145.00 971.50 723.00 416.50 154.00 0.00 35.00 161.00 485.50 866.00 1272.50 7696.00
1936 1559.50 1648.00 1000.50 766.50 240.50 108.00 11.00 9.50 114.00 539.92 a 934.50 1124.50 8056.42
1937 1386.73 a 1220.59 a 1126.00 703.97 a 309.50 93.00 11.50 10.00 190.50 569.50 911.50 1331.50 7864.29
1938 1408.43 a 1075.50 895.50 611.00 397.50 92.00 10.50 8.00 134.50 328.50 816.50 1203.00 6980.93
1939 1231.00 1268.00 1050.00 777.50 331.00 81.00 7.00 2.00 125.00 490.50 798.50 1005.00 7166.50
1940 1568.00 1140.50 1168.00 754.00 410.00 99.50 19.50 45.00 139.00 376.50 897.50 1183.00 7800.50
1941 1246.20 a 1206.00 1135.00 486.00 232.50 71.38 a 4.00 12.50 92.50 409.00 739.50 1030.50 6665.08
1942 1377.00 1189.50 903.50 519.00 358.50 82.00 8.00 0.00 z 228.50 439.00 851.00 1348.00 7304.00
1943 1451.50 1157.00 1144.00 676.00 376.00 68.00 1.00 8.00 245.50 448.50 906.00 1197.50 7679.00
1944 1114.00 1126.50 1107.50 729.00 274.00 75.50 2.00 13.00 125.50 438.00 701.00 1345.00 7051.00
1945 1478.50 1179.50 746.50 613.50 444.50 173.50 25.50 12.40 a 169.00 493.50 842.00 1384.67 a 7563.07
1946 1318.00 1194.00 767.00 529.00 379.50 129.50 3.50 37.50 153.00 363.50 753.50 1167.50 6795.50
1947 1253.00 1297.00 1077.50 695.00 487.00 194.50 21.00 6.72 a 184.00 262.50 958.50 1222.50 7659.22
1948 1508.00 1273.00 1074.50 590.00 369.50 100.00 11.00 9.50 87.50 481.02 a 718.50 1194.50 7417.02
1949 1237.93 a 1153.00 1043.50 621.00 320.00 50.00 1.00 4.50 211.50 407.00 830.50 1154.50 7034.43
1950 1331.00 1186.50 1162.00 824.50 370.00 69.00 48.00 86.50 151.50 352.00 950.17 a 1415.50 7946.67
1951 1427.50 1171.00 1083.00 665.00 240.54 d 117.00 16.50 34.10 a 195.50 462.00 1070.00 1297.35 a 7779.49
1952 1327.00 1087.00 1095.00 522.00 311.00 79.00 1.50 18.50 146.90 a 558.00 b 785.00 1072.00 7002.90
1953 1201.50 1136.50 974.00 692.50 335.50 48.50 4.00 1.50 131.50 324.50 670.50 1116.50 6637.00
1954 1338.50 924.50 1046.00 574.50 444.00 78.50 10.00 20.00 115.00 429.50 741.50 1150.00 6872.00
1955 1381.50 1150.00 1084.50 450.50 236.00 73.00 0.00 6.00 135.50 397.00 954.50 1352.50 7221.00
1956 1294.00 1199.36 a 1106.50 723.62 a 401.00 80.00 19.50 18.00 209.50 331.00 825.50 1142.00 7349.98
1957 1545.00 1081.00 998.50 623.00 360.63 a 87.00 9.50 8.50 159.00 473.50 830.50 1107.00 7283.13
1958 1291.00 1297.50 971.50 545.00 289.00 146.50 5.50 17.00 121.50 413.00 764.00 1441.50 7303.00
1959 1570.00 1291.50 1094.50 584.00 243.50 42.41 a 12.00 0.00 124.00 525.50 1054.50 1013.50 7555.41
1960 1246.00 1190.50 1260.50 592.00 410.50 89.00 41.00 17.00 150.50 488.00 789.50 1330.00 7604.50
1961 1423.00 1024.00 969.50 728.50 447.00 92.50 24.00 22.50 147.50 419.50 836.50 1335.00 7469.50
1962 1573.00 1296.00 1077.50 652.50 265.00 117.50 18.50 26.50 209.00 416.50 810.50 1321.00 7783.50
1963 1710.50 1430.00 1046.50 615.52 a 413.50 98.50 21.50 50.50 169.00 232.50 703.50 1491.00 7982.52
1964 1216.50 1135.50 1068.00 628.00 251.50 137.50 14.50 69.23 a 208.50 532.00 748.50 1306.50 7316.23
1965 1456.50 1280.50 1226.50 730.50 301.00 132.50 43.50 47.50 186.00 467.00 814.66 a 1036.00 7722.16
1966 1582.00 1195.50 947.00 708.50 456.50 83.50 5.50 26.00 162.00 499.00 855.00 1261.00 7781.50
1967 1318.00 1334.50 1056.00 638.00 489.00 65.50 57.00 71.00 180.00 503.00 936.00 1184.00 7832.00
1968 1367.50 1330.00 864.50 605.00 416.00 88.00 27.50 59.00 98.50 459.00 810.50 1247.00 7372.50
1969 1486.00 1122.50 1143.50 297.50 o 354.50 235.00 34.62 a 9.00 203.50 561.62 a 943.00 1252.00 7345.23
1970 1648.00 1255.00 1099.50 620.50 343.00 81.50 5.00 6.00 153.00 451.50 858.00 1273.50 7794.50
1971 1577.00 1279.04 c 1166.50 707.00 398.19 b 68.00 26.00 40.30 a 127.00 294.50 855.00 1176.45 a 7714.98
1972 1551.00 1342.06 b 1177.50 762.50 281.50 141.00 49.08 a 61.50 193.00 583.83 a 864.50 0.00 z 7007.47
1973 1291.84 b 1114.00 827.50 718.00 444.33 a 35.50 3.10 a 5.88 b 151.00 318.00 842.00 1289.71 b 7040.86
1974 1399.50 1258.38 b 1044.00 611.25 b 415.92 a 123.00 0.00 z 19.00 244.14 a 521.32 a 810.50 1127.22 b 7574.23
1975 1316.98 a 1205.04 a 1163.02 a 787.00 228.88 a 74.50 16.00 10.73 e 228.89 c 409.72 a 716.00 1245.00 7401.76
1976 1533.47 a 1111.32 a 986.00 610.50 401.00 33.50 3.50 39.55 b 198.33 c 621.07 b 1064.00 1587.20 a 8189.44
1977 1818.00 1185.00 858.50 551.00 167.50 142.00 10.50 59.93 a 127.50 484.52 d 812.00 1266.83 e 7483.28
1978 1497.62 b 1357.00 1091.00 672.93 a 290.07 c 124.04 d 48.64 b 10.33 a 84.00 482.00 842.50 1362.00 7862.13
1979 1713.50 1452.00 1066.29 b 769.50 432.93 b 124.00 21.00 30.48 a 99.50 525.50 856.15 d 1063.50 8154.36
1980 1392.00 1319.50 1140.00 587.68 b 250.00 113.50 5.17 a 7.23 a 141.43 b 588.00 837.93 a 1268.00 7650.44
1981 1444.00 1125.50 930.50 590.00 372.52 a 67.50 b 18.00 13.50 181.50 592.21 b 772.00 1243.50 7350.72
1982 1643.50 1235.50 1062.00 730.00 260.00 186.00 12.50 44.00 211.50 450.00 872.50 1030.00 7737.50
1983 1256.00 1020.00 1003.50 470.00 k 17.00 z 72.50 13.50 16.50 175.50 440.00 784.50 1594.50 6376.50
1984 1543.00 1029.00 1190.50 646.50 409.50 57.50 8.00 12.00 190.50 428.00 864.50 1182.00 7561.00
1985 1533.47 a 1281.00 910.00 561.50 232.00 136.00 7.00 42.00 194.00 486.50 924.50 1621.00 7928.97
1986 1448.00 1261.00 981.00 557.00 279.00 132.00 18.00 40.50 152.00 465.50 945.50 0.00 z 6279.50
1987 1278.50 962.00 829.00 494.00 246.00 32.00 0.00 z 25.50 111.50 592.50 751.50 1075.70 a 6398.20
1988 1486.50 1367.50 997.50 0.00 z 231.50 68.00 8.50 16.00 126.00 618.50 814.50 1278.50 7013.00
1989 1149.50 1386.50 1188.00 704.50 387.00 110.00 7.00 21.50 185.50 509.50 945.00 1593.50 8187.50
1990 1118.50 1098.00 0.00 z 597.00 418.00 116.50 27.00 32.00 133.00 531.00 732.50 1265.00 6068.50
1991 1503.00 1079.00 964.50 564.00 239.00 31.50 20.50 20.00 228.00 532.00 1010.50 1198.50 7390.50
1992 1247.00 1067.00 1042.50 748.00 343.50 168.50 52.00 83.50 0.00 z 549.00 925.00 1217.00 7443.00
1993 1328.50 1219.50 1044.00 0.00 z 388.50 141.50 7.00 13.00 275.00 561.00 889.50 1199.00 7066.50
1994 1715.50 1375.00 1004.50 608.00 359.50 97.00 22.50 55.00 102.50 433.50 762.50 1065.50 7601.00
1995 1333.50 1217.00 986.50 741.00 360.50 59.50 13.50 0.00 208.50 466.50 1062.50 1368.00 7817.00
1996 1449.00 1295.00 1215.00 777.00 452.00 140.50 37.00 8.50 173.00 502.00 1041.00 1255.50 8345.50
1997 1453.50 1140.50 1040.00 710.00 514.50 83.00 30.00 51.50 119.50 504.00 933.00 1086.50 7666.00
1998 1243.50 880.50 991.50 574.50 181.50 106.00 0.00 11.00 65.00 418.50 729.50 1081.50 6283.00
1999 1477.50 991.00 958.50 568.50 257.62 b 81.21 a 0.50 15.50 160.34 a 473.50 670.86 a 1163.02 a 6818.05
2000 1373.82 a 1070.00 808.58 a 656.38 a 311.00 91.50 22.14 c 21.81 d 165.00 b 410.46 d 849.64 b 1617.68 a 7398.03
2001 1298.50 1249.11 a 1046.77 a 538.45 a 268.84 b 104.40 e 16.03 b 0.00 d 174.00 317.50 i 608.65 d 997.68 a 6302.44
2002 1163.50 991.00 1156.50 671.00 481.00 115.00 4.00 14.50 96.00 609.50 901.50 1168.50 7372.00
2003 1464.00 1330.00 1087.50 763.00 467.77 c 138.50 12.63 d 8.00 167.50 519.50 811.00 1099.39 c 7868.79
2004 1560.50 1185.00 935.00 600.58 d 404.50 126.50 53.00 76.50 81.50 415.00 729.50 1231.00 7398.58
2005 1423.70 d 1074.00 1112.00 568.00 380.00 31.50 9.00 11.00 51.00 399.50 820.00 1358.50 7238.20
2006 1053.50 1204.00 979.50 492.00 287.00 57.50 8.50 5.00 167.50 574.50 737.00 1031.50 6597.50
2007 1221.50 1354.50 827.18 a 616.50 214.00 30.00 16.50 12.50 97.50 303.00 848.50 1287.00 6828.68
2008 1370.00 1339.50 1098.50 580.50 362.00 41.00 5.00 12.00 85.00 453.50 848.50 1461.50 7657.00
2009 1637.50 1147.00 987.50 634.50 392.00 169.00 46.00 56.00 104.00 588.00 649.00 1249.50 7660.00
2010 1352.50 1097.00 862.50 534.50 281.50 77.00 5.00 2.00 198.00 378.00 789.50 1311.00 6888.50
2011 1460.50 1165.50 1059.00 695.00 443.50 139.00 1.00 2.00 170.50 439.50 738.50 1040.00 7354.00
2012 1196.00 1005.00 695.43 a 635.50 266.50 80.00 0.00 6.50 170.00 355.00 i 0.00 z 0.00 z 4054.93
Period of Record Statistics
MEAN 1402.42 1216.43 1035.79 657.25 364.48 110.32 22.59 32.33 165.15 474.11 844.29 1246.24 7592.47
S.D. 168.54 141.88 121.21 85.32 85.57 48.48 20.19 27.15 53.86 92.51 100.81 151.74 487.62
SKEW 0.38 0.28 -0.31 0.00 -0.07 0.52 1.09 1.08 0.37 0.03 0.13 0.35 -0.11
MAX 1948.87 1648.00 1319.50 876.50 605.50 235.00 81.00 122.00 319.50 721.50 1070.00 1621.00 8955.00
MIN 1053.50 880.50 695.43 450.50 167.50 30.00 0.00 0.00 51.00 232.50 608.65 929.50 6283.00
NO YRS 120 119 118 115 118 119 117 118 119 115 119 114 99