DEVILS LAKE KDLR, NORTH DAKOTA

Monthly Total Heating Degree Days

(322158)

Base Temperature = 65 F

File last updated on Apr 4, 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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 38.75 a 34.10 a 116.00 579.50 1137.50 1777.50 3683.35
1949 1999.50 1859.00 1474.50 592.50 327.00 121.00 36.00 39.27 a 301.00 702.50 933.00 1855.50 10240.77
1950 2431.50 1700.50 1474.50 1015.00 516.50 156.50 68.50 114.50 254.50 606.50 1375.00 1819.00 11532.50
1951 2028.50 1589.26 a 1645.00 805.50 261.50 210.00 47.50 90.00 375.50 777.00 1383.50 1874.50 11087.76
1952 1989.00 1392.00 1410.50 517.50 338.93 a 80.50 28.50 56.50 211.00 734.50 1064.50 1502.50 9325.93
1953 1723.50 1366.00 1251.50 880.00 397.50 137.50 38.50 20.00 270.50 422.50 928.50 1519.50 8955.50
1954 2172.00 1097.50 1319.00 826.50 511.50 148.50 29.50 61.50 338.00 669.00 950.00 1363.50 9486.50
1955 1778.50 1672.50 1568.00 518.00 307.50 125.00 15.50 22.00 330.00 598.50 1523.50 1955.50 10414.50
1956 1937.00 1743.00 1532.00 1009.50 421.08 a 33.00 51.00 52.00 378.00 549.00 1128.00 1576.50 10410.08
1957 1991.50 1561.50 1256.00 761.50 342.00 161.50 1.50 72.00 347.00 663.00 1143.50 1436.00 9737.00
1958 1559.00 1588.50 1158.50 662.50 295.00 226.00 74.50 82.00 263.00 586.00 1172.50 1765.00 9432.50
1959 2049.00 1670.00 1086.50 738.00 465.50 94.00 22.00 26.50 337.50 885.50 1412.50 1326.50 10113.50
1960 1904.00 1650.50 1593.00 790.00 345.50 126.00 30.50 33.50 236.00 616.00 1141.00 1708.50 10174.50
1961 1795.00 1387.50 1092.00 880.00 420.50 51.50 20.50 10.00 384.50 610.50 1136.00 1869.00 9657.00
1962 1919.00 1737.00 1423.00 783.50 431.50 92.50 35.50 34.50 332.50 540.00 993.50 1575.50 9898.00
1963 2004.00 1569.00 1108.00 720.00 426.50 68.00 0.00 z 36.00 170.00 327.50 1039.00 1834.00 9302.00
1964 1644.00 1432.00 1523.00 680.50 313.00 175.00 7.00 147.00 379.50 593.00 1140.00 1962.50 9996.50
1965 2047.00 1569.50 1549.50 739.00 371.00 102.50 29.00 86.00 551.50 540.50 1222.00 1409.50 10217.00
1966 2268.50 1665.50 1126.00 871.00 447.50 121.00 0.50 97.00 232.00 617.00 1345.00 1683.50 10474.50
1967 1744.50 1721.00 1260.50 846.50 496.00 105.00 50.00 64.50 174.00 679.00 1104.00 1589.50 9834.50
1968 1853.00 1627.50 1029.50 680.50 443.50 136.50 51.00 87.50 252.50 629.00 1047.00 1780.00 9617.50
1969 2131.00 1507.50 1550.50 639.00 344.50 231.00 31.50 11.50 224.50 785.00 1047.50 1512.00 10015.50
1970 1994.00 1522.00 1509.00 815.50 424.00 39.50 14.00 29.50 262.00 629.50 1177.50 1782.50 10199.00
1971 2109.00 1495.50 1324.50 684.00 336.00 54.50 52.50 34.50 284.50 611.50 1177.00 1720.50 9884.00
1972 1991.00 1768.00 1330.00 795.00 242.00 75.50 59.00 44.50 350.00 771.50 1224.50 1880.50 10531.50
1973 1584.50 1364.50 935.00 753.50 0.00 z 86.00 19.50 8.50 288.00 0.00 z 1323.00 1760.00 8122.50
1974 2016.00 1595.50 1474.50 760.50 476.50 75.00 0.50 103.50 352.00 569.00 1124.50 1419.00 9966.50
1975 1738.50 1589.00 1456.50 926.50 319.50 113.50 7.00 64.50 320.00 586.00 936.11 c 1617.68 a 9674.79
1976 1796.00 1342.50 1359.50 620.00 317.50 65.50 17.00 28.00 245.50 812.00 1177.50 b 1707.07 a 9488.07
1977 2133.50 1349.50 1031.50 538.00 115.50 59.50 24.50 128.00 0.00 z 0.00 z 0.00 z 0.00 z 5380.00
1978 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
1979 0.00 z 0.00 z 1504.65 d 1023.89 c 555.00 104.50 14.00 83.81 d 0.00 z 668.22 d 1198.50 1373.54 e 6526.11
1980 1914.85 e 1606.39 a 1469.73 c 537.41 a 223.95 b 86.90 a 15.00 89.68 c 312.00 0.00 z 939.83 a 1208.50 i 7195.74
1981 1637.83 d 1289.75 d 1026.00 633.10 a 370.00 146.50 32.00 12.50 279.00 662.76 b 884.50 1694.48 c 8668.43
1982 2349.05 b 1621.85 b 1383.50 819.50 323.50 194.00 5.00 113.00 288.00 657.50 1264.50 1467.33 a 10486.73
1983 1546.56 d 1231.48 a 1228.50 833.00 480.50 118.00 17.00 10.50 340.00 680.50 1092.00 2118.85 a 9696.89
1984 1752.00 1195.50 1338.68 a 649.00 403.50 101.50 18.50 21.50 426.50 671.00 1209.50 1801.50 9588.68
1985 1837.30 c 1578.00 1043.50 607.00 223.00 220.00 24.00 118.50 382.00 682.50 1488.00 1882.45 b 10086.25
1986 0.00 z 1584.07 a 1038.50 735.50 315.50 69.00 17.00 75.00 310.50 613.50 1360.00 1467.00 7585.57
1987 1473.50 1149.50 1257.00 468.00 229.00 57.00 28.00 86.50 209.50 738.50 939.00 1378.50 8014.00
1988 1845.10 e 1619.34 a 1133.05 a 613.97 a 176.00 12.00 4.13 a 44.00 269.00 684.00 1154.50 1566.03 b 9121.12
1989 1632.48 c 1781.92 c 1484.50 732.50 237.50 97.76 a 1.00 51.50 238.00 616.50 1225.00 1827.89 c 9926.55
1990 1376.00 1360.59 a 1110.50 709.00 365.50 81.50 17.00 23.50 195.50 638.00 1082.00 1731.50 8690.59
1991 1820.00 1160.00 1146.00 590.00 257.50 29.50 19.50 18.50 274.50 787.50 1311.50 1466.50 8881.00
1992 1497.00 1293.50 1038.00 755.00 253.00 135.00 121.50 125.00 337.50 702.50 1191.00 1821.00 9270.00
1993 1907.00 1611.50 1314.50 767.00 373.50 215.50 102.00 55.00 373.50 749.50 1248.10 a 1589.50 10306.60
1994 2229.86 b 1809.50 1126.00 735.00 288.00 57.00 57.50 87.00 189.00 562.00 1054.50 1527.78 a 9723.15
1995 1791.50 1486.07 a 1345.50 853.97 a 434.50 76.00 47.00 13.00 280.00 680.50 1384.50 1759.50 10152.04
1996 2132.50 1638.00 1546.50 969.83 a 426.50 97.00 33.50 13.00 272.00 671.00 1547.00 1927.68 a 11274.51
1997 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 124.00 0.00 z 1204.00 1236.90 a 2564.90
1998 1771.00 1094.00 1292.50 494.50 216.00 170.50 7.50 2.50 135.50 586.50 1142.00 1580.50 8493.00
1999 1885.00 1259.00 1158.00 677.00 312.50 93.00 18.00 34.50 299.00 644.00 842.50 1312.50 8535.00
2000 1694.50 1218.00 959.50 698.00 268.00 152.00 35.00 0.00 z 253.00 560.50 1273.00 1997.00 9108.50
2001 1542.50 1695.00 1247.00 681.50 254.00 128.50 17.50 18.50 222.50 713.50 851.50 1485.50 8857.50
2002 1567.00 1207.00 1519.00 801.00 514.50 77.50 7.00 48.50 211.00 953.25 a 1162.50 1435.00 9503.25
2003 1774.00 1690.00 1378.50 643.00 346.00 77.50 19.00 17.00 298.50 541.00 1339.50 1440.00 9564.00
2004 2026.00 1503.00 1233.50 696.50 472.50 160.50 60.50 0.00 z 187.00 642.00 931.50 1508.67 a 9421.67
2005 1918.00 1377.00 1225.00 528.00 394.00 59.00 29.00 30.50 163.00 578.50 1060.00 1478.50 8840.50
2006 1273.00 1506.50 1252.00 494.00 280.00 47.00 4.50 7.50 262.50 771.50 1149.50 1380.50 8428.50
2007 1661.00 0.00 z 1128.50 691.50 295.00 63.50 7.00 69.50 233.50 565.50 1124.00 1722.00 7561.00
2008 1841.50 1728.00 1304.50 742.00 433.00 127.00 16.00 21.00 238.50 622.00 0.00 z 0.00 z 7073.50
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 1535.00 f 1624.00 1537.50 838.00 446.00 121.50 9.50 23.00 214.50 520.50 1035.00 1351.50 7721.00
2012 1506.00 1354.71 a 865.00 633.00 302.50 65.00 2.50 30.00 233.00 751.00 1180.86 a 0.00 z 6923.58
2013 1755.78 b 1514.00 202.00 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 3269.78
Period of Record Statistics
MEAN 1849.82 1507.13 1291.44 725.00 354.65 108.54 28.46 51.91 276.88 648.38 1156.28 1636.42 9718.20
S.D. 240.05 194.08 193.66 132.34 95.66 51.98 24.01 36.66 78.82 102.23 162.68 205.95 742.81
SKEW 0.02 -0.44 -0.14 0.19 -0.05 0.62 1.59 0.71 0.52 0.09 0.25 0.13 -0.01
MAX 2431.50 1859.00 1645.00 1023.89 555.00 231.00 121.50 147.00 551.50 953.25 1547.00 2118.85 11532.50
MIN 1273.00 1094.00 865.00 468.00 115.50 12.00 0.50 2.50 116.00 327.50 842.50 1236.90 8014.00
NO YRS 58 59 60 60 59 60 60 59 60 58 60 58 48