ISHPEMING, MICHIGAN

Monthly Total Heating Degree Days

(204127)

Base Temperature = 65 F

File last updated on Oct 29, 2012
*** Note *** Provisional Data *** After Year/Month 198710
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
1898 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 28.50 y 152.00 240.00 694.40 a 1040.50 1511.50 3638.40
1899 1731.50 1634.50 1600.00 731.50 482.05 a 135.50 0.00 z 27.50 m 427.00 569.62 c 820.00 1440.50 9572.17
1900 1486.45 a 1639.00 1461.13 a 618.60 e 378.50 195.50 139.50 24.05 b 285.00 326.03 b 1240.20 e 1394.00 9187.97
1901 1591.85 a 1570.00 1424.50 701.00 402.50 130.00 c 55.00 76.50 321.50 602.00 1106.00 1505.00 9485.85
1902 1569.00 1335.00 1021.00 808.00 455.50 333.00 52.50 168.50 363.00 707.12 b 937.00 1460.50 9210.12
1903 1626.93 d 1429.00 1093.50 834.50 409.00 275.50 92.00 212.00 316.00 581.00 1148.50 1614.58 a 9632.51
1904 1778.50 1829.50 1373.82 a 965.50 580.39 d 0.00 z 84.50 g 213.26 b 407.88 d 657.72 a 948.10 a 1563.43 a 10318.10
1905 1737.50 1558.50 1280.82 a 869.00 469.00 g 101.00 p 86.00 f 13.00 z 323.79 a 89.50 u 1084.82 b 1397.50 8251.93
1906 1439.43 a 1516.50 1599.00 768.50 651.52 a 235.71 b 147.00 147.50 250.34 a 748.50 0.00 z 0.00 z 7504.01
1907 0.00 z 0.00 z 0.00 z 296.50 v 550.00 k 208.97 a 121.33 b 151.00 h 0.00 z 0.00 z 0.00 z 0.00 z 330.29
1908 0.00 z 0.00 z 0.00 z 593.00 f 411.30 c 124.20 e 44.00 g 65.50 f 141.21 a 520.80 a 986.54 d 1461.77 e 3645.82
1909 1519.60 e 874.50 i 1322.67 d 1014.00 e 419.50 f 120.00 e 59.62 e 84.39 d 328.89 c 690.35 e 695.50 f 1151.00 f 5139.50
1910 1534.50 e 1485.83 e 683.50 f 656.54 d 454.00 f 186.35 d 25.63 e 115.39 d 237.00 g 570.06 d 913.50 f 1219.00 f 4574.29
1911 1274.50 f 1256.96 e 1219.13 e 602.00 f 287.35 e 87.69 d 96.74 b 149.50 341.11 c 703.70 a 1171.07 b 1233.91 c 6547.16
1912 2146.75 a 1624.00 1455.50 775.50 432.50 210.50 93.00 237.50 288.33 c 569.50 988.97 a 1353.27 e 10175.32
1913 1573.50 1628.31 b 1436.00 727.00 511.50 141.72 a 116.25 a 104.76 b 333.00 677.35 a 886.50 1142.72 b 9278.62
1914 1448.50 1608.92 b 1344.50 919.14 a 358.10 b 201.00 47.50 128.50 246.43 b 444.50 1036.50 1547.00 9330.59
1915 1269.00 i 1193.50 1269.50 533.50 598.50 292.50 147.00 238.00 270.50 612.25 c 985.71 b 1415.31 b 7556.27
1916 0.00 z 1560.78 d 1488.00 b 821.90 a 474.50 293.04 b 20.31 b 76.50 345.56 c 667.57 b 1088.04 b 1559.19 d 8395.37
1917 1755.12 a 1729.26 a 1338.50 971.67 c 615.00 318.00 92.00 180.50 316.07 b 926.26 b 942.12 d 1699.32 a 10883.80
1918 1923.60 b 1533.00 1078.00 821.90 a 427.69 d 213.46 d 107.00 91.00 512.68 b 606.16 c 912.50 1281.33 a 9508.32
1919 1364.50 1290.50 1177.47 b 806.90 a 440.50 56.50 21.50 77.00 241.50 684.77 c 799.00 i 1736.00 a 7897.13
1920 1837.00 1500.50 1239.50 976.03 a 436.00 134.50 106.00 96.50 193.00 349.00 1055.50 1312.50 9236.03
1921 1423.00 1269.50 1211.50 600.00 376.00 75.50 3.00 64.00 165.00 604.50 1207.50 1417.50 8417.00
1922 1633.50 1469.00 1183.50 817.00 200.50 146.50 79.00 104.00 161.50 662.50 919.00 1549.00 8925.00
1923 1566.00 1594.38 b 1518.00 871.50 413.50 106.50 46.00 161.00 266.50 645.50 877.00 1173.50 9239.38
1924 1824.50 1337.22 b 1252.29 b 865.00 687.17 d 118.50 m 123.47 b 149.50 409.50 470.50 1010.50 1686.63 d 9816.28
1925 1599.00 1366.50 1228.50 652.50 578.00 168.50 104.00 59.00 276.00 954.50 1070.50 1480.00 9537.00
1926 1564.50 1370.50 1466.50 935.00 433.50 263.00 85.00 133.30 a 409.50 768.00 1214.50 1568.00 10211.30
1927 1662.50 1313.00 1070.00 772.50 619.50 269.50 113.50 226.50 231.00 566.00 1115.50 1605.50 9565.00
1928 1535.57 b 1481.00 1320.50 969.00 405.00 281.50 0.00 z 95.00 426.00 669.00 1012.50 1311.00 9506.07
1929 1847.00 1597.50 1170.50 761.50 585.90 a 288.50 74.00 120.00 358.00 677.00 1138.00 1509.00 10126.90
1930 1741.00 1296.50 1282.50 782.50 402.00 140.50 77.50 96.00 276.50 651.52 a 928.50 1379.50 9054.52
1931 1410.50 1161.50 1215.50 758.00 443.50 127.50 47.50 133.00 159.00 458.00 790.50 1174.50 7879.00
1932 1288.00 1384.23 a 1423.93 a 892.00 436.00 114.64 b 80.00 69.00 262.50 733.00 1131.21 a 1475.50 9290.02
1933 1406.50 1420.72 c 1316.50 866.50 407.50 63.50 45.50 83.50 201.50 755.50 1223.00 1621.50 9411.72
1934 1396.00 1611.50 1423.50 916.50 317.23 a 161.50 90.00 182.38 a 364.50 592.00 952.50 1483.00 9490.62
1935 1653.50 1334.00 1219.00 876.50 547.50 253.00 18.50 103.00 352.00 632.50 1150.50 1421.00 9561.00
1936 1639.50 1799.61 b 1213.81 b 967.50 332.50 189.00 61.50 145.50 238.50 831.32 a 1195.00 1360.90 a 9974.64
1937 1672.50 1341.50 1434.50 913.00 419.50 154.00 62.50 36.50 298.00 743.00 1060.34 a 1485.00 9620.34
1938 1629.50 1321.50 1058.00 783.00 421.00 174.00 79.50 47.50 290.50 503.00 987.50 1399.50 8694.50
1939 1472.50 1515.00 1358.50 914.00 394.50 145.50 50.00 55.00 301.50 684.50 954.00 1198.00 9043.00
1940 1657.50 1327.00 1411.00 929.00 550.50 187.50 80.00 126.00 223.00 571.00 1044.00 1340.50 9447.00
1941 1505.50 1312.00 1341.00 568.50 280.00 137.50 75.00 125.00 204.00 625.50 967.00 1226.05 a 8367.05
1942 1491.50 1354.00 1121.50 550.00 442.00 164.50 112.50 86.00 361.00 558.50 1048.50 1503.00 8793.00
1943 1660.00 1330.00 1426.50 873.00 442.00 134.00 6.50 82.50 381.00 597.00 1077.50 1398.50 9408.50
1944 1255.50 1358.50 1349.00 871.50 325.00 141.50 39.00 89.50 271.00 568.50 890.50 1467.00 8626.50
1945 1732.00 1346.50 879.50 795.00 647.50 263.00 124.00 95.00 329.50 688.50 1035.00 1529.00 9464.50
1946 1499.00 1431.50 887.00 730.00 515.50 209.50 63.00 138.50 294.50 491.00 976.00 1432.00 8667.50
1947 1470.50 1409.00 1293.50 926.50 630.00 257.00 69.50 37.00 269.50 326.00 1122.00 1443.50 9254.00
1948 1759.50 1512.00 1289.50 702.50 493.00 183.50 61.45 c 103.33 a 204.31 a 596.50 906.21 a 1396.00 9207.80
1949 1427.00 1356.00 1275.00 527.00 f 427.28 a 82.76 a 57.57 c 73.50 342.78 c 500.00 727.50 i 1184.50 f 5541.89
1950 1666.77 a 1348.50 1404.82 a 1066.00 508.50 168.50 112.50 234.50 272.00 488.00 1157.00 1535.07 d 9962.16
1951 1572.50 1311.69 b 1295.69 d 812.50 300.00 224.00 77.00 180.00 377.50 648.93 a 1228.00 1470.00 9497.81
1952 1508.00 1321.50 1281.50 633.50 436.50 124.50 59.00 90.00 255.00 759.50 948.00 1227.50 8644.50
1953 1435.00 1287.00 1142.00 878.50 425.00 116.00 60.00 57.50 283.00 421.00 861.50 1310.00 8276.50
1954 1590.50 1077.00 1288.00 766.50 605.00 120.50 81.50 101.50 342.00 640.00 918.50 1350.50 8881.50
1955 1500.00 1339.50 1301.50 558.00 281.50 104.50 14.50 40.00 286.00 510.00 1117.00 1526.00 8578.50
1956 1435.00 1349.00 1340.00 878.00 492.00 123.50 115.00 83.50 385.86 a 420.50 996.50 1353.50 8972.36
1957 1747.00 1331.50 1236.50 719.50 450.50 154.50 48.00 99.00 330.00 600.00 1020.50 989.00 i 7737.00
1958 1428.50 1412.50 1163.50 677.07 a 513.00 283.50 71.00 141.00 247.00 542.00 937.50 1659.50 9076.07
1959 1719.98 a 1455.50 1248.00 788.50 308.00 117.00 65.00 48.50 258.50 738.50 1259.50 1220.00 9226.98
1960 1466.00 1352.50 1481.00 748.00 481.00 183.00 94.50 74.00 275.50 575.50 909.50 1486.00 9126.50
1961 1611.00 1203.50 1123.50 823.00 483.50 162.50 52.00 49.50 260.50 548.70 a 977.50 1437.00 8732.20
1962 1671.50 1479.00 1156.00 820.50 341.00 185.50 102.50 91.50 375.00 568.00 957.00 1442.50 9190.00
1963 1837.50 1577.50 1193.50 703.00 447.50 147.50 55.00 130.00 267.00 289.00 834.00 1550.50 9032.00
1964 1326.00 1294.00 1283.50 723.50 290.00 170.50 40.00 192.50 313.50 624.13 a 910.50 1492.00 8660.13
1965 1614.00 1450.50 1398.50 595.50 h 299.50 181.50 128.50 163.50 426.00 589.50 998.50 1255.50 8505.50
1966 1646.00 1309.00 1085.52 a 886.00 577.00 128.50 19.50 123.50 276.50 648.50 1069.50 1390.50 9160.02
1967 1479.00 1536.50 1160.00 761.00 594.50 134.00 97.00 138.50 244.00 660.00 1103.50 1339.00 9247.00
1968 1569.00 1462.50 1019.38 a 682.50 464.00 177.00 71.82 a 110.50 198.00 531.50 993.50 1406.00 8685.70
1969 1482.50 1272.50 1313.00 708.10 a 413.00 314.50 100.50 22.00 245.50 663.00 1001.50 1362.45 a 8898.55
1970 1687.50 1392.50 1335.50 747.50 508.00 127.00 37.50 65.00 250.00 497.00 983.00 1387.00 9017.50
1971 1710.00 1370.00 1281.00 778.00 503.00 95.00 113.31 b 145.00 223.50 389.50 989.50 1355.00 8952.81
1972 1686.50 1544.00 1345.50 929.50 314.00 179.50 94.50 112.50 353.00 705.50 1050.00 1534.50 9849.00
1973 1395.50 1307.50 932.50 785.00 545.00 117.50 50.00 53.50 313.00 408.00 979.50 1454.00 8341.00
1974 1607.00 1439.00 1290.00 756.50 518.00 212.50 40.30 a 91.50 387.00 611.00 936.00 1220.50 9109.30
1975 1492.00 1271.50 1294.50 936.00 268.50 108.50 44.50 73.00 363.50 519.50 877.50 1417.22 a 8666.22
1976 1645.00 1217.00 1185.50 647.14 b 452.50 60.50 44.50 95.50 287.50 746.00 1204.00 1674.00 9259.14
1977 1847.00 1313.50 989.50 577.50 175.00 169.00 31.50 179.50 270.50 612.50 996.00 1479.00 8640.50
1978 1625.00 1460.00 1269.97 a 871.00 365.50 207.00 77.00 63.00 228.00 582.00 978.00 1515.00 9241.47
1979 1779.00 1549.00 1173.00 853.00 527.50 192.50 71.50 118.50 245.50 717.00 1049.00 1267.00 9542.50
1980 1571.50 1456.50 1296.32 a 718.00 290.50 207.50 47.00 34.62 a 317.00 744.00 985.00 1505.00 9172.93
1981 1533.50 1221.50 1100.00 717.00 469.00 122.50 59.00 50.00 391.50 743.00 857.00 1367.50 8631.50
1982 1833.50 1426.00 1228.50 890.50 267.50 287.00 29.50 141.00 307.50 548.00 1008.00 1260.50 9227.50
1983 1420.00 1139.00 1132.50 864.00 564.50 165.50 20.50 23.00 231.50 600.00 955.00 1695.50 8811.00
1984 1678.00 1113.00 1390.50 680.00 466.00 65.50 52.50 26.00 183.50 j 375.00 k 981.00 1394.50 7847.00
1985 1627.50 a 1437.50 1079.00 676.00 353.50 244.50 76.00 129.50 298.50 589.00 1110.50 1659.00 9280.50
1986 1511.50 1366.50 1118.00 601.00 286.00 189.00 46.50 125.00 282.50 629.00 1107.00 1299.50 8561.50
1987 1397.50 1112.50 1021.50 575.50 341.52 a 79.00 46.00 106.50 230.50 769.00 0.00 z 0.00 z 5679.52
Period of Record Statistics
MEAN 1593.34 1406.42 1258.63 790.68 440.61 173.58 70.42 109.27 295.63 608.15 1019.62 1433.27 9162.27
S.D. 154.93 149.07 149.37 119.51 109.75 66.15 33.48 52.42 69.70 122.01 105.97 134.25 507.85
SKEW 0.50 0.36 -0.23 -0.17 -0.01 0.48 0.24 0.57 0.31 -0.15 0.31 0.02 0.46
MAX 2146.75 1829.50 1600.00 1066.00 687.17 333.00 147.00 238.00 512.68 954.50 1259.50 1736.00 10883.80
MIN 1255.50 1077.00 879.50 533.50 175.00 56.50 3.00 22.00 141.21 289.00 790.50 1142.72 7879.00
NO YRS 84 86 86 84 85 86 84 86 87 87 83 83 70