HIBBING CHISHOLM HIBBING AP, MINNESOTA

Monthly Total Heating Degree Days

(213730)

Base Temperature = 65 F

File last updated on Apr 6, 2013
*** Note *** Provisional Data *** After Year/Month 201303
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
1962 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 1025.50 1663.00 2688.50
1963 2105.00 1704.00 1226.57 a 727.00 499.00 128.00 38.50 111.60 a 254.00 403.50 984.50 1826.00 10007.67
1964 1629.00 1512.50 1459.00 787.00 330.00 202.50 26.50 214.50 410.50 695.00 1104.00 1868.00 10238.50
1965 1991.50 1762.00 1597.50 816.00 400.50 203.50 114.50 161.50 566.00 662.50 1197.50 1433.00 10906.00
1966 2176.00 1561.00 1172.00 905.00 566.50 165.00 24.50 149.50 354.50 741.00 1273.00 1683.00 10771.00
1967 1788.50 1817.00 1320.00 848.00 601.00 182.50 87.50 176.50 340.00 770.50 1235.00 1614.00 10780.50
1968 1821.00 1665.00 1080.00 754.00 503.00 193.50 103.00 147.00 284.00 628.00 1127.00 1732.00 10037.50
1969 1865.00 1480.50 1374.50 711.00 443.00 356.00 87.00 31.00 319.00 828.50 1171.50 1509.00 10176.00
1970 1989.00 1611.00 1422.00 826.50 545.50 113.50 42.50 82.50 346.50 666.50 1187.00 1745.50 10578.00
1971 2102.00 1519.00 1356.50 792.00 505.00 79.50 122.50 156.00 333.00 582.50 1166.50 1674.50 10389.00
1972 2106.00 1730.00 1413.50 905.00 297.50 146.00 109.00 122.50 459.50 808.00 1193.50 1861.50 11152.00
1973 1694.00 1459.11 a 966.00 785.50 460.00 140.00 64.50 57.50 383.50 560.50 1149.50 1680.00 9400.11
1974 1906.00 1550.50 1399.50 790.00 556.00 190.50 29.00 164.50 526.50 695.00 1104.50 1452.00 10364.00
1975 1792.00 1514.00 1469.00 942.00 327.50 177.50 37.00 113.00 439.50 613.50 1073.00 1712.00 10210.00
1976 1927.00 1321.50 1351.50 633.00 428.00 89.50 35.00 120.00 372.00 906.50 1358.00 1974.50 10516.50
1977 2099.50 1397.50 1022.50 617.50 200.50 129.50 49.00 218.00 344.00 676.50 987.00 g 1741.50 8496.00
1978 1954.50 1589.50 1288.00 796.00 334.50 174.00 78.00 109.00 285.50 671.50 1287.50 1866.00 10434.00
1979 2136.00 1720.00 1324.00 904.00 581.50 188.50 49.50 151.00 317.50 777.50 1197.50 1430.00 10777.00
1980 1822.50 1617.00 1416.50 658.00 291.00 187.00 38.50 89.00 391.00 831.00 1106.50 1733.50 10181.50
1981 1711.00 1376.50 1116.50 769.50 459.00 176.50 83.00 67.00 342.50 804.00 962.50 1622.50 9490.50
1982 2184.50 1582.00 1381.00 892.50 334.50 309.50 54.50 171.50 376.50 639.00 1235.50 1454.00 10615.00
1983 1688.50 1295.00 1165.50 854.50 558.50 208.00 32.50 28.50 363.00 720.50 1130.50 2091.50 10136.50
1984 608.00 r 1250.50 1426.50 681.00 515.50 138.00 80.00 68.50 478.50 624.00 1150.50 1725.50 8138.50
1985 1905.50 1572.50 1114.00 675.50 315.50 285.00 63.00 190.50 401.00 732.00 1426.00 2006.50 10687.00
1986 1711.50 1559.50 1160.00 648.00 353.00 190.50 48.00 181.00 381.00 710.50 1299.50 1514.00 9756.50
1987 1661.50 1178.50 1075.00 553.50 340.50 121.00 46.50 139.50 306.50 855.50 1022.50 1418.00 8718.50
1988 1931.00 1720.32 a 1278.50 768.00 251.00 96.00 30.50 93.00 328.00 871.50 1135.00 1674.00 10176.82
1989 1651.00 1807.50 1474.00 871.00 438.00 203.50 65.10 a 118.50 357.50 692.50 1298.00 0.00 z 8976.60
1990 1558.50 1518.00 0.00 z 811.00 513.00 127.50 87.50 89.50 333.50 793.00 1081.50 1745.50 8658.50
1991 1937.50 1374.00 1225.50 679.00 307.00 109.00 90.50 74.50 418.00 831.50 1361.50 1623.50 10031.50
1992 1602.50 1347.00 1196.60 a 868.00 374.50 264.00 192.00 205.50 369.00 778.00 1208.00 1659.50 10064.60
1993 1778.50 1497.50 1231.50 837.41 a 482.50 246.00 89.00 110.50 516.00 840.50 1301.00 1599.00 10529.41
1994 2169.00 1669.00 1168.50 805.00 370.50 98.50 58.50 132.00 222.50 542.00 978.00 1391.50 9605.00
1995 1619.75 a 1538.50 1144.00 906.00 393.50 80.50 45.00 21.00 352.50 699.05 a 1425.00 a 1757.00 9981.80
1996 2118.00 1609.00 1502.50 950.00 519.00 151.00 89.50 32.00 292.76 a 705.50 1336.50 1745.00 11050.76
1997 1854.00 1452.50 1303.00 811.55 a 563.50 67.50 82.00 138.50 248.00 657.50 1216.00 1335.50 9729.55
1998 1546.50 1028.50 1189.50 624.50 257.50 170.50 46.50 31.50 218.00 603.00 1079.00 1541.50 8336.50
1999 1793.00 1254.00 1129.00 662.00 338.00 135.50 30.48 a 73.00 365.00 743.00 926.00 1452.00 8900.98
2000 1780.00 1330.50 1000.50 767.50 347.50 228.50 51.50 45.50 q 427.00 672.50 1129.00 1988.13 a 9722.63
2001 1559.00 1707.48 a 1324.00 771.21 a 424.50 180.00 90.93 a 123.50 378.50 770.50 876.00 1407.00 9612.62
2002 1601.50 1294.00 1508.00 847.00 620.00 150.50 43.50 100.50 316.00 973.00 1271.00 1477.50 10202.50
2003 1802.00 1654.50 1320.00 813.00 460.50 186.00 69.50 55.00 322.00 681.50 1235.00 1471.50 10070.50
2004 1987.00 1433.00 1190.50 812.50 608.00 284.00 147.50 269.00 234.00 682.00 1048.50 1663.50 10359.50
2005 1934.50 1370.00 1352.63 a 659.00 500.00 121.00 75.00 179.50 307.00 675.50 1093.50 1516.00 9783.63
2006 1362.50 1587.00 1194.00 597.50 373.00 167.50 24.00 93.00 422.50 866.50 1062.50 1381.00 9131.00
2007 1693.00 1668.50 653.50 k 837.50 366.00 134.50 92.00 150.00 336.00 593.50 1139.50 1741.50 8752.00
2008 1819.50 1702.50 1398.50 851.50 590.50 236.00 94.00 130.00 360.50 685.50 1130.50 1893.00 10892.00
2009 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 0.00 z 0.00 z 0.00
2010 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 0.00 z 0.00 z 0.00
2011 1899.50 1475.50 1294.50 799.00 462.50 211.00 48.50 76.50 392.00 607.00 1083.00 1440.50 9789.50
2012 1557.50 1328.50 852.50 741.50 378.00 123.50 7.00 118.00 408.50 794.00 1112.00 1581.00 9002.00
2013 1703.50 1514.50 1415.67 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 0.00 z 4633.67
Period of Record Statistics
MEAN 1833.87 1514.84 1272.14 778.39 430.94 171.81 66.53 119.91 360.42 715.88 1160.30 1648.24 10085.08
S.D. 199.35 172.53 159.25 96.81 107.56 61.91 35.16 55.65 74.14 106.19 124.05 184.49 637.62
SKEW 0.02 -0.47 -0.36 -0.38 -0.02 0.75 1.11 0.27 0.49 -0.12 0.09 0.35 -0.72
MAX 2184.50 1817.00 1597.50 950.00 620.00 356.00 192.00 269.00 566.00 973.00 1426.00 2091.50 11152.00
MIN 1362.50 1028.50 852.50 553.50 200.50 67.50 7.00 21.00 218.00 403.50 876.00 1335.50 8336.50
NO YRS 48 49 47 48 48 48 48 47 48 48 48 48 42