MAHNOMEN 1 W, MINNESOTA

Monthly Total Heating Degree Days

(215012)

Base Temperature = 65 F

File last updated on Apr 6, 2013
*** Note *** Provisional Data *** After Year/Month 201209
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
1927 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 85.50 f 115.00 k 424.00 h 0.00 z 1452.83 e 1452.83
1928 1718.00 1489.74 b 1260.50 881.79 b 305.35 a 218.89 c 15.50 r 125.03 a 401.67 c 737.59 b 1048.89 c 2079.00 10266.44
1929 2338.00 1759.33 a 1148.11 c 727.78 c 405.50 f 152.88 d 38.15 e 66.28 b 427.24 a 541.50 f 1307.40 e 1715.85 a 9681.02
1930 1747.00 f 1310.62 b 1283.92 a 630.56 c 446.06 d 98.00 f 16.00 o 45.43 b 342.41 a 727.35 d 1163.04 b 1528.82 a 7478.19
1931 1554.65 a 1176.00 1234.50 667.24 a 459.32 a 94.29 b 58.12 c 110.64 b 211.03 a 549.39 d 1089.11 b 1442.00 8646.29
1932 1768.15 d 1594.46 b 474.50 w 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 72.50 z 3362.61
1933 0.00 z 0.00 z 0.00 z 0.00 z 30.00 z 0.00 z 2.00 z 5.00 z 95.00 q 0.00 z 279.50 y 188.00 z 0.00
1934 83.00 z 73.50 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
1935 975.50 o 940.00 f 856.50 h 86.50 z 30.50 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1936 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
1937 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
1938 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
1939 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
1940 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
1941 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
1942 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
1943 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
1944 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
1945 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
1946 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
1947 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
1948 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
1949 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
1950 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
1951 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
1952 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
1953 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
1954 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
1955 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
1956 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
1957 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
1958 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
1959 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1.00 w 11.07 c 273.10 a 780.17 a 1399.00 1338.00 3801.34
1960 1788.91 b 1572.50 1525.00 744.00 343.50 142.00 51.00 30.50 293.00 585.00 1076.00 1683.09 b 9834.50
1961 1848.00 0.00 z 978.50 884.00 411.00 58.00 i 24.00 q 28.00 i 370.80 e 558.00 1080.50 1777.69 b 7908.49
1962 2061.50 c 1660.81 a 1279.55 b 796.50 323.00 80.00 33.50 31.00 309.50 506.50 938.50 1570.50 9590.87
1963 2036.00 1613.50 1067.50 632.50 417.50 54.50 14.50 41.33 a 139.50 289.50 982.00 1823.50 9111.83
1964 1622.50 1429.50 1444.08 a 657.50 254.50 123.50 5.00 122.50 318.00 606.50 1067.00 1862.07 a 9512.65
1965 2047.72 d 1652.50 1639.00 699.50 322.50 95.00 34.50 70.50 481.50 597.04 d 1161.00 1387.50 10188.26
1966 2260.50 1667.50 1134.08 a 849.50 428.00 112.00 4.00 88.50 238.50 631.88 a 1241.50 1684.00 10339.97
1967 1773.00 1783.50 1262.50 778.00 512.00 125.00 65.50 66.00 189.50 677.50 1089.00 1573.00 9894.50
1968 1859.50 1719.00 983.50 653.50 462.00 115.00 60.00 87.00 247.50 595.00 1044.00 1716.50 9542.50
1969 2048.50 1495.00 1524.50 602.50 334.50 233.50 45.00 20.00 225.50 759.50 1062.50 1546.00 9897.00
1970 2047.00 1592.00 1528.50 791.50 366.00 61.00 13.50 33.00 234.50 607.00 1174.50 1774.00 10222.50
1971 2155.50 1540.00 1294.00 662.00 382.50 25.50 79.00 55.00 269.50 538.50 1120.00 1628.00 9749.50
1972 2046.00 1820.50 1351.50 788.50 246.50 75.00 55.50 57.50 316.00 701.00 1165.00 1913.00 10536.00
1973 1692.00 1390.00 866.50 695.00 340.50 95.50 40.50 7.50 g 287.50 421.50 1167.00 1681.00 8677.00
1974 2000.50 1526.00 1370.50 724.50 429.00 90.50 8.50 89.50 338.00 545.50 1040.00 1408.00 9570.50
1975 1741.00 1569.00 1502.50 870.00 269.50 119.00 28.50 44.50 341.50 528.00 1015.50 1585.00 9614.00
1976 1832.50 1301.50 1331.50 557.50 297.00 64.50 22.00 28.50 243.00 805.00 1257.00 1866.72 a 9606.72
1977 2183.43 a 1419.00 1023.00 486.50 69.50 57.00 12.00 125.00 236.00 589.50 1214.00 1835.00 9249.93
1978 2089.00 1769.50 1360.50 690.00 208.50 112.00 40.00 58.00 207.50 588.00 1285.00 1881.00 10289.00
1979 2215.00 1848.00 1370.50 896.00 521.00 128.50 28.00 110.00 229.82 b 706.50 1211.50 1384.84 b 10649.67
1980 1861.00 1678.50 1429.00 521.00 226.50 73.00 13.50 69.00 303.50 713.00 982.50 1638.50 9509.00
1981 1631.50 1272.50 978.00 597.50 299.00 105.00 21.00 21.00 263.50 647.50 866.00 1658.50 8361.00
1982 2217.50 1534.50 1300.50 742.00 243.50 218.00 10.50 99.00 269.00 556.50 1230.00 1382.00 9803.00
1983 1581.50 1217.50 1065.50 711.50 415.00 108.00 18.00 4.00 260.00 613.50 1007.50 2066.50 9068.50
1984 1795.00 1161.00 1288.50 606.00 378.50 58.00 26.00 33.00 365.50 540.50 1068.50 1708.50 9029.00
1985 1878.00 1577.50 1009.50 559.50 202.50 184.50 35.50 91.00 348.00 649.00 1473.50 1968.50 9977.00
1986 1612.50 1548.50 1067.50 613.00 281.00 63.50 5.50 85.50 289.00 581.50 1286.50 1402.50 8836.50
1987 1516.00 1065.50 1021.00 408.00 172.00 59.50 22.00 73.00 190.00 692.00 978.50 1440.00 7637.50
1988 1881.00 1696.00 1151.00 638.00 127.00 30.50 12.50 42.00 225.50 710.50 1123.00 1613.00 9250.00
1989 1673.00 1834.50 1413.50 725.00 277.50 146.50 1.00 43.00 232.00 618.50 1278.50 1917.00 10160.00
1990 1394.50 1347.00 1063.00 702.00 342.50 78.50 37.00 28.00 192.00 635.50 1001.00 1701.50 8522.50
1991 1914.50 1287.50 1088.50 569.00 237.00 21.00 16.00 19.00 265.50 744.00 1248.50 1401.50 8812.00
1992 1509.50 1242.00 1036.00 742.00 257.00 160.50 128.00 119.50 288.50 662.50 1183.50 1736.50 9065.50
1993 1839.00 1590.50 1237.00 698.50 311.00 160.00 51.00 57.00 357.00 675.50 1218.50 1568.50 9763.50
1994 2170.50 1676.50 1115.50 666.50 230.50 48.50 29.50 84.00 161.50 463.00 957.00 1347.50 8950.50
1995 1744.50 1549.50 1178.50 851.00 339.00 52.00 24.50 8.50 280.50 651.50 1349.00 1726.00 9754.50
1996 1980.00 1579.96 b 1437.50 862.76 a 313.50 71.50 28.50 17.00 208.00 566.00 1403.50 1810.50 10278.72
1997 1966.36 b 1451.85 a 1404.50 816.50 454.50 18.50 49.00 60.00 121.50 535.50 1246.00 1308.50 9432.71
1998 1659.50 984.00 1189.00 493.00 144.50 169.00 11.00 0.00 165.50 762.50 1197.50 1563.50 8339.00
1999 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
2000 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
2001 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
2002 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
2003 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
2004 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
2005 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
2006 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
2007 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
2008 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
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 789.98 a 0.00 z 0.00 z 789.98
2010 1749.50 1513.50 964.00 486.72 a 322.50 103.50 1.50 36.00 331.50 508.50 1083.00 0.00 z 7100.22
2011 1976.00 1510.50 1340.50 725.50 355.50 97.50 3.00 13.50 269.50 505.00 1016.00 1336.50 9149.00
2012 1507.00 1359.00 771.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 416.00 f 0.00 z 0.00 z 0.00 z 3637.50
Period of Record Statistics
MEAN 1864.89 1508.20 1224.21 691.14 319.98 102.37 30.51 57.27 273.02 618.55 1143.41 1639.83 9480.66
S.D. 229.49 206.11 197.20 118.85 101.53 52.86 24.67 35.77 74.63 103.74 134.55 204.06 663.75
SKEW 0.06 -0.52 -0.07 -0.20 -0.17 0.66 1.63 0.36 0.40 -0.50 0.31 0.19 -0.52
MAX 2338.00 1848.00 1639.00 896.00 521.00 233.50 128.00 125.03 481.50 805.00 1473.50 2079.00 10649.67
MIN 1394.50 984.00 771.50 408.00 69.50 18.50 1.00 0.00 121.50 289.50 866.00 1308.50 7637.50
NO YRS 46 46 46 45 44 43 42 44 46 46 46 46 39