FOND DU LAC, WISCONSIN

Monthly Total Heating Degree Days

(472839)

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 1825.00 1456.00 1178.00 679.50 396.50 35.50 2.50 62.00 209.00 491.50 976.00 1496.00 8807.50
1894 1414.00 1328.50 816.00 531.00 307.50 60.00 10.50 28.00 140.50 496.00 b 1065.50 1169.73 a 7367.23
1895 1259.50 h 0.00 z 1157.00 563.00 284.00 18.50 23.50 21.50 127.00 719.50 1018.50 1316.00 5248.50
1896 1423.50 1279.50 1245.50 500.50 108.50 47.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4605.00
1897 1416.00 1164.00 1132.50 610.00 322.00 129.50 4.00 74.00 109.00 369.50 980.50 1019.50 h 6311.00
1898 1346.00 591.00 n 517.50 l 625.00 280.50 31.50 12.00 27.00 109.50 546.00 936.50 1524.17 a 5438.17
1899 1527.50 1503.00 1309.50 0.00 z 248.00 40.50 0.00 z 0.00 z 257.00 360.50 735.00 1317.00 7298.00
1900 810.00 n 1421.00 1208.00 512.50 218.00 54.50 15.50 0.00 143.50 240.85 e 998.57 b 1227.71 b 6040.12
1901 1417.00 1426.50 1108.00 567.00 264.50 0.00 z 0.00 z 11.50 170.50 408.00 926.50 1363.50 7663.00
1902 1340.50 1270.00 824.50 543.00 204.00 101.50 10.00 51.50 198.50 450.50 641.50 1285.50 6921.00
1903 1401.50 1195.19 a 784.09 b 528.00 198.50 103.00 17.05 a 62.00 181.03 a 482.50 970.50 1507.50 7430.86
1904 1676.00 1573.50 1060.00 744.50 274.00 62.00 17.50 49.00 179.50 501.50 825.00 1416.50 8379.00
1905 1735.00 1498.50 940.50 613.50 311.00 71.00 34.00 15.50 109.50 570.00 926.50 1238.50 8063.50
1906 1274.00 1287.50 1264.00 546.50 319.00 77.50 17.00 16.50 14.00 z 359.50 0.00 z 1211.50 6373.00
1907 1487.00 1237.00 847.50 755.50 455.00 117.00 8.00 52.50 213.50 570.00 908.00 1224.00 7875.00
1908 1336.50 1272.50 977.00 730.00 272.50 115.50 14.50 40.00 95.50 448.00 852.00 1344.00 7498.00
1909 1393.50 1151.50 1118.50 780.50 356.00 77.00 20.50 12.50 187.00 603.00 704.00 1542.50 7946.50
1910 1543.00 1416.50 714.50 498.50 404.50 113.50 1.50 13.00 165.50 389.00 1088.50 1427.50 7775.50
1911 1474.50 1101.50 957.50 650.00 176.00 20.50 19.50 54.00 154.00 565.00 1068.00 1112.00 7352.50
1912 2026.00 1480.00 1282.50 523.50 249.00 85.50 29.00 54.00 189.00 462.50 827.50 1139.50 8348.00
1913 1410.00 1365.00 1127.50 557.50 313.00 75.50 17.00 15.50 214.44 c 510.50 737.50 1057.50 7400.94
1914 1215.00 1506.50 1086.50 626.50 242.50 82.00 0.00 31.50 156.00 314.50 862.00 1515.00 7638.00
1915 1510.00 1048.00 1111.00 367.50 414.00 156.00 46.50 113.00 142.50 424.00 789.00 1276.50 7398.00
1916 1365.50 1437.50 1157.00 587.50 283.00 117.00 0.00 22.50 216.50 503.00 927.50 1502.50 8119.50
1917 1602.50 1546.50 1043.50 676.50 417.00 98.00 h 11.00 40.50 177.00 753.50 852.50 1520.50 8641.00
1918 1855.50 1306.00 860.00 679.00 182.00 34.00 32.50 4.43 c 254.50 373.00 756.50 1052.00 7389.43
1919 1282.37 a 1134.00 946.50 552.50 326.00 15.00 0.00 15.50 96.00 475.50 954.50 1581.50 7379.37
1920 1693.00 1368.00 989.50 749.50 310.50 55.50 29.50 61.50 115.50 316.00 922.00 1189.00 7799.50
1921 1227.00 1070.00 859.00 402.00 240.00 46.00 0.00 19.00 74.00 467.50 972.00 1263.50 6640.00
1922 1508.50 1243.00 972.50 577.50 80.50 16.50 3.00 21.50 146.50 434.00 722.00 1304.50 7030.00
1923 1353.50 1394.00 1227.00 662.50 247.50 20.50 0.00 35.50 151.50 532.00 771.50 1007.50 7403.00
1924 1695.50 1247.00 1127.50 617.50 434.00 105.50 32.00 33.50 257.50 339.00 875.50 1539.00 8303.50
1925 1436.50 1119.00 952.50 446.00 375.00 50.00 10.00 9.00 108.50 785.50 950.50 1445.00 7687.50
1926 1388.50 1126.50 1235.00 695.50 199.29 c 88.00 5.00 0.00 156.00 513.50 991.00 1391.00 7789.29
1927 1463.00 1013.00 794.50 547.50 309.00 80.00 3.00 21.00 150.50 344.00 838.00 1390.50 6954.00
1928 1357.50 1170.00 978.50 675.00 148.00 72.50 0.50 14.50 176.00 368.50 798.00 1151.00 6910.00
1929 1713.02 b 1407.00 863.00 485.00 353.50 82.00 7.50 18.00 130.50 458.28 a 970.50 1258.50 7746.80
1930 1591.50 1003.00 992.50 499.00 207.50 27.93 a 4.00 2.50 99.83 a 496.50 726.50 1236.00 6886.76
1931 1160.50 935.00 975.50 474.50 268.00 31.55 a 0.00 12.50 64.66 a 302.25 a 594.00 981.50 5799.96
1932 1148.50 1097.50 1197.00 578.50 189.50 3.00 2.00 1.50 109.50 491.00 932.50 1274.50 7025.00
1933 1071.10 b 1229.85 b 1044.18 a 567.50 194.78 a 15.00 a 0.00 1.55 a 60.00 468.00 944.48 a 1296.32 a 6892.77
1934 1166.50 1301.50 1079.83 a 588.50 102.82 a 6.50 0.00 45.50 126.50 331.50 690.00 1334.50 6773.65
1935 1453.00 1131.50 884.53 a 587.07 a 350.00 96.00 0.00 37.50 114.50 434.00 889.50 1333.50 7311.10
1936 1625.90 b 1220.50 g 919.50 696.50 109.50 52.00 0.00 1.50 108.00 519.00 935.00 1128.40 a 6095.30
1937 1403.50 1220.50 1083.45 a 613.00 213.90 a 47.00 0.00 2.00 157.00 530.00 908.50 1356.00 7534.85
1938 1413.71 b 1076.32 c 748.50 501.50 233.00 29.00 0.00 4.50 125.00 278.50 765.00 a 1259.00 6434.03
1939 1231.50 1276.00 988.38 a 647.00 137.43 a 31.50 2.07 a 6.64 c 105.00 382.69 b 777.12 d 1030.23 a 6615.56
1940 1621.00 1187.00 1149.58 a 638.00 289.00 35.17 a 12.50 50.50 121.00 372.00 949.00 1242.07 a 7666.82
1941 1285.00 1272.50 1150.00 367.50 138.50 81.00 4.00 31.50 129.00 410.75 a 611.50 h 1093.30 c 5963.05
1942 1019.50 h 1230.96 a 0.00 z 0.00 z 388.03 b 64.50 11.50 37.00 248.00 447.00 863.50 1454.50 4745.00
1943 1533.00 1240.00 1169.50 634.00 306.50 65.50 5.00 20.00 258.50 492.00 984.50 1262.98 b 7971.48
1944 1195.50 1199.50 1134.00 678.50 166.00 45.00 6.00 23.00 130.00 491.00 734.50 1444.50 7247.50
1945 1551.50 1210.50 663.00 545.00 373.00 187.00 33.50 37.50 215.00 542.50 863.00 1492.00 7713.50
1946 1355.50 1208.50 734.50 493.50 324.00 128.00 10.00 60.00 170.00 338.50 831.00 1206.00 6859.50
1947 1307.50 1326.50 1092.50 611.50 412.50 146.50 30.00 0.50 189.50 193.50 1047.50 1301.00 7659.00
1948 1578.33 b 1318.50 1072.00 435.00 325.00 62.50 7.00 11.50 105.50 507.00 753.00 1290.00 7465.33
1949 1384.50 1249.00 1024.00 586.55 a 239.00 22.76 a 0.00 13.50 235.00 353.00 859.50 1246.50 7213.31
1950 1373.00 1248.50 1182.50 786.00 283.00 40.00 19.00 78.00 149.50 328.50 1041.43 b 1556.00 8085.43
1951 1597.02 a 1281.00 1123.50 636.00 182.50 79.50 18.00 40.00 214.50 436.50 1110.50 1375.00 8094.02
1952 1407.18 c 1138.00 1136.00 507.93 a 261.50 36.00 7.00 21.50 163.00 633.00 795.00 1159.50 7265.61
1953 1293.00 1146.00 970.50 679.00 264.50 29.50 7.23 a 10.50 157.00 337.00 727.50 1190.00 6811.73
1954 1432.20 a 960.50 1050.00 472.50 403.50 65.00 9.50 32.00 166.00 497.50 836.50 1319.57 a 7244.77
1955 1474.50 1255.00 1118.58 a 406.50 221.50 73.00 0.00 15.00 183.00 423.50 1001.00 1417.00 7588.58
1956 1384.00 1254.50 1168.00 655.50 312.00 58.50 33.50 45.50 235.50 287.50 860.50 1197.50 7492.50
1957 1629.50 1081.50 986.50 532.00 289.50 50.00 1.50 14.50 190.50 514.50 875.00 1142.35 a 7307.35
1958 1364.00 1371.50 1006.00 548.00 249.50 130.50 15.50 a 25.32 a 137.00 358.50 801.50 1492.50 7499.82
1959 1675.50 1387.50 1145.00 571.00 147.50 39.50 19.00 0.00 148.00 561.00 1101.00 1055.50 7850.50
1960 1280.00 1235.00 1363.00 501.00 261.00 52.50 14.00 10.00 134.00 482.50 790.34 a 1380.50 7503.84
1961 1478.50 1043.50 947.00 703.00 343.00 51.00 5.00 7.50 154.50 414.50 847.00 1428.00 7422.50
1962 1649.00 1371.50 1130.00 628.00 203.00 59.00 20.00 4.50 221.50 417.00 855.50 1375.00 7934.00
1963 1784.50 1451.50 409.50 p 526.00 330.00 61.00 3.50 34.50 145.00 193.00 726.00 1585.50 6840.50
1964 1245.00 1180.50 1087.00 546.00 134.00 77.00 9.50 65.00 208.00 525.00 759.50 1392.50 7229.00
1965 1543.50 1319.50 1263.50 709.50 184.00 50.50 17.50 44.50 201.00 474.00 843.00 1062.50 7713.00
1966 1689.00 1233.50 909.50 657.50 401.00 67.50 0.00 23.00 179.50 490.50 855.50 1336.00 7842.50
1967 1350.50 1423.50 1025.50 581.00 431.00 25.50 37.50 63.50 190.50 522.50 949.50 1218.50 7819.00
1968 1421.50 1387.50 811.50 523.50 325.50 69.50 26.00 38.50 115.50 425.00 847.00 1312.00 7303.00
1969 1542.50 1169.50 1192.50 550.50 263.00 172.00 14.50 0.50 169.00 537.00 923.00 1314.50 7848.50
1970 1692.00 1282.00 1140.50 547.50 268.50 51.21 a 9.62 b 6.00 159.00 397.00 880.00 1355.50 7788.83
1971 1698.50 1260.00 1160.00 628.50 328.50 35.50 13.50 28.00 109.50 262.50 859.00 1211.50 7595.00
1972 1633.50 1419.00 1195.00 763.00 210.00 85.50 24.50 35.50 157.50 583.50 900.50 1430.00 8437.50
1973 1307.00 1180.50 783.50 612.50 360.00 10.00 1.00 9.50 155.00 310.00 863.00 1318.00 6910.00
1974 1428.00 1298.50 1017.00 539.50 378.50 91.00 1.00 16.50 245.00 476.00 822.00 1172.00 7485.00
1975 1336.00 1265.50 1214.50 792.00 182.00 54.00 17.00 0.50 230.50 377.50 669.50 1284.00 7423.00
1976 1581.00 1101.00 958.00 515.50 319.50 14.50 0.50 22.50 205.50 622.50 1098.50 1630.50 8069.50
1977 1905.50 1215.00 809.50 436.00 110.00 94.50 0.00 48.00 133.50 511.00 900.50 1420.50 7584.00
1978 1660.50 1457.50 1164.00 696.50 270.00 60.00 18.00 5.00 107.50 509.00 910.00 1415.00 8273.00
1979 1822.00 1542.00 1099.50 729.50 324.00 67.00 5.00 43.00 126.00 558.50 921.00 1145.00 8382.50
1980 1465.50 230.00 y 1118.98 e 603.00 219.00 113.00 3.00 18.60 a 166.00 631.00 849.64 b 1353.50 6541.22
1981 1470.50 1132.50 931.00 546.50 308.00 30.50 19.50 20.50 204.00 568.00 809.00 1277.50 7317.50
1982 1766.50 1303.50 1094.00 691.50 137.00 136.00 2.00 47.00 209.50 420.00 885.00 1086.00 7778.00
1983 1281.50 1021.00 992.00 683.50 398.50 58.00 9.00 2.00 153.00 432.00 801.00 1636.50 7468.00
1984 1532.50 997.00 1167.50 579.00 330.50 21.50 8.50 13.00 186.50 361.00 842.00 1181.50 7220.50
1985 1610.00 1294.00 886.50 460.50 146.00 75.00 3.00 19.50 180.50 454.50 996.00 1653.00 7778.50
1986 1444.50 1268.50 875.23 a 464.50 199.00 67.50 6.50 37.50 139.00 446.00 983.50 1207.50 7139.23
1987 1302.00 977.50 864.00 462.00 185.50 19.00 6.00 27.50 96.50 618.00 756.50 1128.00 6442.50
1988 1534.00 1389.00 963.50 560.50 157.00 30.00 2.00 16.50 115.00 641.50 799.00 1305.00 7513.00
1989 1150.10 a 1446.50 1175.00 634.00 284.00 77.50 3.00 10.00 178.50 428.00 975.50 1628.00 7990.10
1990 1140.00 1155.50 895.50 527.50 365.50 0.00 z 11.00 15.00 136.00 501.00 702.50 1327.00 6776.50
1991 1582.00 1117.00 930.50 478.00 195.00 17.50 5.00 7.00 221.00 482.50 1032.00 1217.00 7284.50
1992 1264.50 1072.50 1030.00 669.00 252.00 98.00 28.50 66.50 160.00 538.00 956.50 1272.00 7407.50
1993 1377.00 1294.00 1107.50 696.00 240.50 89.00 0.00 11.50 272.50 556.50 909.50 1234.50 7788.50
1994 1804.00 1406.00 1002.00 569.50 254.00 51.50 15.00 46.00 94.00 429.50 766.00 1102.00 7539.50
1995 1395.50 1260.50 951.00 709.00 269.00 33.00 7.00 0.00 203.00 461.50 1127.50 1420.00 7837.00
1996 1571.50 1318.00 1178.50 707.00 381.50 64.50 17.50 5.50 173.00 486.00 1085.00 1317.50 8305.50
1997 1516.00 1180.50 1042.50 643.50 435.50 46.00 26.50 51.50 134.50 467.50 964.00 1153.50 7661.50
1998 1305.00 920.50 964.00 512.50 138.00 96.00 0.00 0.00 65.00 401.00 730.00 1114.50 6246.50
1999 1512.50 991.50 962.50 503.50 180.50 59.00 0.50 16.50 174.50 487.50 670.50 1201.50 6760.50
2000 1434.50 1076.00 750.50 597.50 225.00 71.00 18.00 16.00 173.79 a 377.00 0.00 z 0.00 z 4739.29
2001 1349.00 1278.00 1065.50 461.50 238.50 89.50 10.00 6.50 187.00 497.03 a 578.00 1068.50 6829.03
2002 1171.00 1012.00 1123.50 571.00 395.50 49.50 0.00 1.50 89.50 627.50 915.00 1155.00 7111.00
2003 1492.00 1331.00 994.00 585.50 318.50 86.50 7.50 5.50 186.00 508.00 876.50 1193.50 7584.50
2004 1652.50 1242.50 920.50 574.50 351.00 110.50 34.00 96.00 82.50 479.00 816.00 1312.00 7671.00
2005 1512.50 1092.50 1141.50 513.50 357.00 25.50 9.00 10.50 75.00 474.00 862.00 1450.50 7523.50
2006 1100.00 1284.50 967.50 447.00 277.00 53.50 4.00 2.00 225.50 631.00 789.00 1123.50 6904.50
2007 1334.50 1441.00 898.00 643.00 202.00 33.50 10.00 16.50 136.50 371.40 e 947.00 1388.50 7421.90
2008 1501.95 a 1432.50 1166.50 595.00 354.50 44.50 6.00 16.50 128.00 531.00 918.00 1528.82 a 8223.27
2009 1755.50 1226.50 1081.00 668.00 279.00 119.50 38.00 54.50 115.00 673.50 718.50 1375.00 8104.00
2010 1498.50 1256.00 942.00 458.00 262.00 39.00 2.50 9.00 224.50 446.00 836.00 1435.50 7409.00
2011 1597.00 1311.00 1147.00 a 696.00 381.50 88.00 0.00 1.00 255.50 471.00 840.50 1160.50 7949.00
2012 1328.50 1095.50 603.00 616.50 210.00 54.00 0.00 34.00 241.50 61.50 z 0.00 z 0.00 z 4183.00
Period of Record Statistics
MEAN 1467.02 1248.81 1029.47 586.93 272.17 64.38 10.79 25.52 161.08 463.47 872.13 1304.05 7499.38
S.D. 184.89 145.76 147.57 93.62 86.81 36.21 10.77 22.15 49.06 106.36 114.10 153.14 510.66
SKEW 0.33 -0.05 -0.41 0.02 -0.02 0.83 1.08 1.17 0.18 0.15 -0.03 0.20 -0.37
MAX 2026.00 1573.50 1363.00 792.00 455.00 187.00 46.50 113.00 272.50 785.50 1127.50 1653.00 8807.50
MIN 1071.10 920.50 603.00 367.50 80.50 3.00 0.00 0.00 60.00 193.00 578.00 981.50 5799.96
NO YRS 117 116 117 118 120 117 117 118 118 118 115 116 103