MERRILL, WISCONSIN

Monthly Total Heating Degree Days

(475364)

Base Temperature = 65 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 201207
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
1905 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 28.00 q 179.50 648.00 996.50 1359.50 3183.50
1906 1433.00 1428.00 1426.50 573.50 350.50 108.50 28.00 29.50 117.50 647.50 996.00 1406.50 8545.00
1907 1748.00 1402.50 1034.50 925.50 551.00 94.00 30.00 96.00 304.00 633.00 1020.50 1372.50 9211.50
1908 1521.00 1372.00 1112.50 601.00 266.00 47.00 17.00 61.50 114.00 530.50 937.00 1437.00 8016.50
1909 1576.50 1296.50 0.00 z 0.00 z 451.00 88.00 0.00 z 18.00 210.00 613.50 727.50 1454.00 6435.00
1910 1518.00 1432.50 714.00 559.50 439.00 103.50 3.00 35.50 125.50 i 0.00 z 0.00 z 0.00 z 4805.00
1911 1458.07 b 1220.00 1002.50 436.00 n 223.00 0.00 z 0.00 z 69.48 b 0.00 z 608.50 1177.00 1200.50 6959.05
1912 2127.50 1545.50 1275.13 a 609.31 a 291.92 a 103.85 d 17.00 90.33 b 206.90 a 554.00 911.00 1293.50 9025.93
1913 1537.00 1484.00 1209.00 e 612.50 360.00 82.00 27.90 a 17.05 a 243.00 642.50 895.00 1157.00 8266.95
1914 1345.00 1669.00 1213.50 707.50 240.00 129.00 3.00 63.50 200.00 384.50 972.50 1630.50 8558.00
1915 1656.00 1104.50 1184.00 397.50 451.50 186.50 73.50 148.00 218.50 557.50 972.00 1413.50 8363.00
1916 1613.11 c 1545.50 1325.00 688.50 361.00 148.00 0.00 61.00 271.50 621.50 1053.50 1641.50 9330.11
1917 1799.50 1728.00 1242.50 761.50 468.50 166.00 40.50 93.00 247.50 856.00 921.50 1698.00 10022.50
1918 1909.00 1470.50 963.50 745.50 262.00 71.00 32.50 30.00 397.50 593.00 866.38 a 1200.70 c 8541.58
1919 1112.00 h 1369.50 1144.50 681.00 370.50 25.00 7.50 65.50 200.50 695.50 1128.00 1792.50 7480.00
1920 1885.00 1479.00 1142.50 852.41 a 310.00 73.00 45.00 54.00 164.50 366.50 1043.00 1346.50 8761.41
1921 1417.00 1239.00 1046.50 573.46 d 256.00 64.00 2.67 b 30.00 131.50 493.02 e 1167.50 1474.50 7895.15
1922 1718.00 1494.50 1145.50 662.00 126.00 48.50 25.50 52.50 208.50 0.00 z 709.50 f 1616.77 e 7097.77
1923 1562.00 1650.38 b 1483.00 803.00 356.00 h 128.50 0.00 z 121.00 211.00 629.00 895.50 1142.50 8625.88
1924 1921.50 1359.50 1185.50 755.17 a 521.50 142.00 59.00 74.50 305.50 373.03 a 1023.62 a 1718.00 9438.83
1925 1607.00 1231.50 1057.50 500.00 447.00 78.00 37.50 24.28 a 167.00 805.50 1024.50 1537.00 8516.78
1926 1622.00 1270.00 1324.00 778.50 264.50 175.71 b 32.50 33.50 299.50 669.00 1143.62 a 1573.00 9185.83
1927 1747.37 a 1212.30 a 1021.50 655.50 437.62 a 157.00 37.00 103.50 239.00 499.50 1031.00 1713.00 8854.28
1928 1608.68 c 1425.50 1174.00 896.00 243.00 166.50 20.00 44.50 291.50 540.36 b 934.50 1284.00 8628.54
1929 2007.00 1638.00 1143.50 600.50 420.00 132.50 22.00 62.50 246.50 541.50 1081.00 1436.00 9331.00
1930 1730.50 1227.50 1147.00 e 596.50 286.00 49.00 35.98 c 12.50 177.50 606.00 905.00 1374.00 8147.48
1931 1352.50 1104.00 1109.50 569.00 337.50 57.50 7.00 61.00 120.50 410.00 762.00 0.00 z 5890.50
1932 0.00 z 1350.00 1331.50 818.79 a 380.00 12.00 26.00 21.00 219.00 633.29 c 1119.11 b 1499.88 a 7410.57
1933 1327.46 c 1521.50 0.00 z 694.50 167.00 f 33.00 0.00 36.50 138.50 0.00 z 0.00 z 1560.85 a 5312.31
1934 1373.54 e 1436.62 b 1335.87 d 725.00 93.00 12.50 6.50 127.50 0.00 z 0.00 z 0.00 z 0.00 z 5110.52
1935 1760.50 1306.00 1130.50 712.00 433.50 174.50 0.00 65.00 273.00 609.50 1100.00 1475.50 9040.00
1936 1772.50 1893.50 1154.50 875.00 199.00 106.00 3.00 37.50 143.50 724.00 1136.50 1390.00 9435.00
1937 1789.50 1457.50 1315.00 753.00 276.00 88.50 13.50 5.50 223.50 659.50 1039.50 1505.50 9126.50
1938 1585.00 1187.00 925.50 583.00 304.00 71.50 12.00 18.50 234.00 492.00 1003.50 1446.00 7862.00
1939 1423.00 1489.50 1178.00 729.50 217.50 88.00 24.80 a 43.52 e 224.00 576.50 953.50 1180.00 8127.82
1940 1748.00 1313.50 1338.50 729.50 388.50 91.50 36.00 77.00 192.00 496.00 1051.50 1385.50 8847.50
1941 1498.00 1377.50 1280.00 478.00 207.00 90.00 31.50 60.97 a 187.50 562.65 a 916.00 1221.00 7910.12
1942 1467.00 1357.50 1051.00 444.00 342.00 97.00 47.00 60.50 284.00 526.00 973.00 1519.50 8168.50
1943 0.00 z 1314.00 1388.00 740.50 338.00 76.50 6.50 29.50 331.61 b 340.00 k 1087.00 1336.50 6648.11
1944 1221.00 1285.00 1257.00 723.00 219.50 65.00 14.00 41.00 188.00 534.50 803.50 1480.50 7832.00
1945 1674.00 1387.00 849.00 642.50 432.45 a 201.00 49.00 50.50 263.00 613.00 1011.50 1550.50 8723.45
1946 1508.00 1397.50 831.50 621.50 418.00 139.50 19.50 82.00 223.50 466.50 939.00 1399.50 8046.00
1947 1458.00 1436.00 1217.50 746.50 512.00 175.50 65.00 28.50 238.00 336.50 1131.00 1422.50 8767.00
1948 1814.57 b 744.00 l 1187.00 474.00 237.50 0.00 z 9.00 32.00 131.00 562.50 899.00 1427.11 c 6773.68
1949 473.50 v 1358.00 1181.50 603.00 275.50 28.50 14.00 47.00 309.00 476.50 981.00 1400.50 6674.50
1950 1657.00 1380.30 a 1292.46 e 905.50 353.40 a 94.14 a 73.07 c 146.00 255.00 0.00 z 0.00 z 0.00 z 6156.87
1951 0.00 z 0.00 z 0.00 z 728.28 a 177.65 e 150.00 41.00 106.00 314.00 603.50 1223.33 c 1488.50 4832.26
1952 1565.50 1268.00 1229.00 579.00 348.50 80.00 28.00 69.50 246.50 743.50 932.50 1266.00 8356.00
1953 1453.50 1385.50 1127.00 773.50 308.50 59.00 35.00 28.00 231.50 391.50 827.00 1347.00 7967.00
1954 1631.00 1050.00 1219.00 623.00 495.50 73.50 23.00 57.00 276.00 636.50 910.00 1382.50 8377.00
1955 1631.12 a 1418.50 1310.50 494.50 256.27 a 95.50 5.50 25.00 215.00 509.00 1135.34 a 1592.50 8688.73
1956 1545.00 1473.00 1308.50 772.76 a 345.50 64.00 43.50 45.00 290.00 382.50 991.50 1364.00 8625.26
1957 1783.00 1304.00 1122.00 617.50 347.50 85.00 8.00 59.50 272.14 b 590.50 1015.86 a 1394.50 8599.50
1958 1439.50 1439.50 1098.50 630.50 338.50 190.50 23.50 68.50 202.00 474.50 934.14 a 1636.28 a 8475.92
1959 1795.42 a 1485.50 0.00 z 647.14 b 222.96 e 77.88 d 30.47 b 9.82 a 226.67 c 679.93 a 1251.00 1186.02 b 7612.80
1960 1118.50 g 1363.54 b 1460.32 c 620.19 d 331.70 a 108.50 39.27 a 24.50 224.00 558.52 a 898.45 a 1478.38 b 7107.36
1961 1581.50 1184.00 1096.88 a 774.00 449.50 b 103.00 25.50 23.50 282.00 554.50 1069.50 1526.00 8669.88
1962 1792.66 b 1520.40 c 1223.50 757.00 261.95 a 118.45 a 56.32 a 31.50 j 340.80 e 506.00 733.50 g 1145.50 g 6577.07
1963 1903.29 b 1550.50 1098.50 582.41 a 367.35 a 80.17 a 10.50 65.00 174.11 b 277.50 823.50 1660.50 8593.34
1964 1433.00 1317.00 1207.50 609.50 174.50 107.59 a 12.50 96.00 261.72 a 610.00 876.00 1570.50 8275.81
1965 1698.11 d 1463.50 1365.07 b 762.50 194.50 90.50 31.50 76.50 340.00 527.50 979.00 1215.00 8743.68
1966 1829.00 a 1299.00 1020.50 735.50 435.00 74.00 8.78 a 84.50 261.50 602.43 a 1017.50 1433.75 a 8801.47
1967 1505.10 b 1541.50 1154.23 a 651.50 476.00 46.00 55.80 a 78.07 d 260.69 a 602.50 1070.50 1396.50 8838.40
1968 1572.70 c 1504.50 920.91 b 598.39 b 364.50 107.50 31.53 b 85.00 0.00 z 504.50 976.00 1464.00 8129.54
1969 1654.00 1317.00 1287.50 587.50 272.50 230.50 0.00 z 10.50 216.21 a 632.50 1014.83 a 1416.50 8639.54
1970 1813.50 1431.50 1270.00 0.00 z 280.03 a 53.79 a 10.16 b 25.12 b 192.41 a 453.38 c 746.50 g 919.00 l 5529.89
1971 1818.67 a 1396.37 a 1288.50 688.97 a 403.00 52.22 c 64.50 f 80.17 b 231.43 b 359.60 a 948.75 b 1411.07 d 8678.75
1972 1778.00 1543.50 1248.86 c 787.50 222.68 a 112.24 a 57.00 0.00 z 250.50 686.28 b 1024.50 1595.98 a 9307.04
1973 1489.50 1264.50 834.93 a 661.55 a 429.35 a 34.14 a 11.76 b 37.95 b 293.08 d 0.00 z 996.00 0.00 z 6052.76
1974 1634.73 a 1038.00 f 1126.85 a 593.57 b 58.00 z 0.00 z 0.00 z 76.50 f 485.77 d 658.48 b 1039.66 a 1402.15 e 6941.22
1975 1643.55 c 1427.39 e 1309.75 a 799.00 206.15 a 99.31 a 42.00 71.00 361.07 b 515.63 a 852.50 1470.50 8797.86
1976 1787.00 1279.50 1232.52 b 652.50 442.00 86.50 49.00 126.50 349.66 a 813.50 1271.00 1844.50 9934.17
1977 2089.00 1395.00 976.50 554.00 158.00 153.50 37.50 178.50 246.00 641.50 1016.00 1550.50 8996.00
1978 1782.00 1605.50 1270.50 751.50 333.50 158.00 75.00 70.00 240.00 695.50 1083.00 1679.00 9743.50
1979 1995.50 1655.00 1218.50 787.50 493.50 156.00 48.50 105.00 248.28 a 535.00 g 872.00 f 1320.00 8027.78
1980 1624.50 989.50 j 1313.50 644.00 295.00 159.00 29.50 64.00 347.50 765.50 976.50 1526.00 7745.00
1981 1620.50 1284.00 1048.00 634.50 411.00 116.00 63.50 66.50 356.38 a 729.00 914.50 1483.50 8727.38
1982 1977.80 a 1512.50 1247.50 838.00 214.50 263.00 31.00 149.00 366.00 588.00 1031.50 1265.50 9484.30
1983 1467.50 1145.00 1041.50 783.00 522.00 143.00 19.00 18.00 276.00 603.50 940.50 1829.00 8788.00
1984 1704.50 1147.00 1350.00 588.50 471.50 54.50 58.00 41.50 336.50 514.50 1047.00 1466.00 8779.50
1985 1707.50 1482.00 1030.00 607.50 248.50 210.00 42.50 85.50 307.00 646.00 1191.50 1853.50 9411.50
1986 1638.00 1471.00 1144.50 553.50 263.00 115.00 29.00 123.50 263.50 655.00 1171.00 1385.00 8812.00
1987 1468.00 1152.00 979.00 579.50 301.00 72.50 30.00 89.50 238.50 814.50 920.00 1254.50 7899.00
1988 1802.00 1634.88 a 1153.72 a 693.50 242.50 86.00 13.50 49.50 254.50 797.50 943.50 1519.00 9190.09
1989 1475.00 1644.00 1358.00 781.00 368.50 151.50 19.50 46.50 285.00 562.00 1175.00 1859.50 9725.50
1990 1368.50 1375.50 1077.00 647.00 450.00 110.00 47.50 62.00 218.00 675.50 897.50 1506.00 8434.50
1991 1763.00 1326.00 1117.50 607.00 270.50 35.00 47.50 43.00 355.50 669.00 1198.50 1466.00 8898.50
1992 1454.00 1248.00 1191.00 776.50 326.00 185.50 117.00 150.50 320.50 665.50 1088.00 1429.00 8951.50
1993 1670.50 1415.50 1164.00 829.50 375.00 171.00 22.00 56.00 431.00 707.50 1104.00 1391.00 9337.00
1994 1967.50 1541.50 1123.50 740.50 352.50 89.00 47.00 110.00 185.50 532.50 892.00 1278.00 8859.50
1995 1536.50 1397.00 1070.00 882.50 379.00 69.00 37.00 7.00 334.50 599.50 1292.00 1598.00 9202.00
1996 1763.50 1527.00 1402.00 844.50 452.50 104.00 71.50 42.50 265.00 609.50 1209.50 1488.50 9780.00
1997 1703.50 1328.00 1212.00 768.50 539.00 69.00 68.00 144.00 226.00 609.00 1096.00 1243.50 9006.50
1998 1446.50 979.00 1110.00 559.50 168.50 157.50 9.00 8.50 147.50 536.50 883.00 1309.00 7314.50
1999 1745.00 1172.00 1109.50 566.50 248.50 109.50 12.00 61.50 305.00 663.00 817.50 1403.00 8213.00
2000 1658.50 1270.00 879.50 710.00 309.00 136.00 45.50 35.00 279.00 512.00 1020.50 1769.50 8624.50
2001 1492.50 1463.00 1202.50 604.50 280.50 136.50 50.00 45.50 181.50 n 660.00 740.50 1238.00 7913.50
2002 1341.50 1155.50 1328.50 733.50 491.00 81.00 5.00 30.00 198.00 757.50 1058.00 1323.50 8503.00
2003 1658.50 1572.50 1178.50 713.50 380.50 116.50 30.00 19.00 247.50 622.50 1042.50 1332.00 8913.50
2004 1796.00 1398.50 1075.50 690.00 444.00 160.00 56.00 175.50 147.50 597.00 931.00 1468.00 8939.00
2005 1681.50 1227.50 1277.50 576.50 420.50 24.00 23.00 40.00 164.50 557.50 995.50 1489.00 8477.00
2006 1243.00 1429.00 1111.00 523.50 351.50 77.50 7.50 34.00 317.00 742.00 905.50 1240.00 7981.50
2007 1435.50 1553.00 1021.00 700.00 219.50 46.00 25.00 47.50 199.50 451.50 1025.00 1564.00 8287.50
2008 1596.00 1591.00 1342.00 695.00 431.00 81.00 11.50 40.00 180.50 614.00 1010.00 1692.00 9284.00
2009 1942.50 1347.50 1193.00 715.00 334.50 143.00 80.50 90.50 142.00 767.00 806.00 1517.50 9079.00
2010 1571.50 1285.50 887.00 483.50 293.50 83.00 3.50 17.00 308.50 549.00 962.00 1494.00 7938.00
2011 1692.00 1377.50 1266.50 773.50 363.98 b 93.00 2.50 15.50 307.00 518.50 887.00 1290.12 a 8587.10
2012 1456.00 1204.00 665.50 610.00 211.00 47.50 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4194.00
Period of Record Statistics
MEAN 1639.71 1390.16 1162.80 676.71 335.85 103.96 30.19 60.93 248.77 588.79 1000.81 1455.37 8723.57
S.D. 184.80 154.98 152.51 107.71 101.23 49.29 21.99 38.76 70.03 112.11 116.40 162.07 541.36
SKEW 0.21 0.13 -0.67 0.00 0.03 0.58 0.92 1.00 0.44 -0.20 0.17 0.44 0.10
MAX 2127.50 1893.50 1483.00 925.50 551.00 263.00 117.00 178.50 485.77 856.00 1292.00 1859.50 10022.50
MIN 1221.00 979.00 665.50 397.50 93.00 12.00 0.00 5.50 114.00 277.50 727.50 1142.50 7314.50
NO YRS 101 103 103 104 104 104 101 103 102 99 99 100 78