GREEN MT DAM, COLORADO

Monthly Total Heating Degree Days

(053592)

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
1939 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 67.00 177.00 309.00 724.00 1022.00 1217.50 3516.50
1940 1464.00 1172.00 1055.00 765.00 482.00 222.00 85.50 161.50 302.50 643.50 1168.97 a 1298.50 8820.47
1941 1532.00 1156.00 1116.00 828.00 460.50 336.50 149.00 191.88 b 403.00 687.88 b 1064.00 1337.00 9261.76
1942 1646.00 1516.00 1377.95 a 763.00 584.35 a 344.50 159.50 186.00 432.00 697.50 998.50 1389.66 b 10094.96
1943 1426.50 1179.11 a 1194.02 a 600.00 b 556.50 312.50 113.50 135.07 c 366.50 705.00 1033.00 1389.50 9011.20
1944 1597.50 1249.50 1169.50 885.50 544.00 298.00 151.00 129.00 320.00 623.50 1000.00 1358.50 9326.00
1945 1327.50 1072.00 1133.50 949.50 518.00 416.00 158.00 129.00 364.00 604.50 1087.50 1414.63 a 9174.13
1946 1569.00 1224.00 959.50 614.00 604.50 242.50 91.50 120.00 323.50 724.50 1150.00 1172.50 8795.50
1947 1465.00 1098.50 1098.50 796.00 468.00 349.00 113.00 116.50 262.00 598.00 1224.50 1430.50 9019.50
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 187.55 a 279.50 721.00 1213.50 1432.50 3834.05
1949 1818.50 1377.00 1058.50 735.50 541.00 281.00 149.00 190.00 377.00 777.50 877.00 1318.00 9500.00
1950 1390.00 1230.00 1140.50 768.50 630.00 303.10 a 208.50 276.00 408.50 578.00 1011.72 a 1303.55 a 9248.38
1951 1468.22 b 1219.50 1163.50 807.50 527.50 394.50 99.00 203.00 358.00 708.50 1175.50 1366.67 b 9491.40
1952 1609.00 1433.50 1375.50 801.50 526.50 204.00 170.50 191.68 a 287.50 588.00 1261.50 1590.50 10039.68
1953 1196.00 1275.00 1027.50 860.50 627.00 198.00 52.70 a 144.00 310.86 a 666.50 921.50 1341.50 8621.06
1954 1129.00 937.00 1060.50 562.00 408.50 181.00 4.00 82.50 265.50 583.50 887.00 1503.50 7604.00
1955 1578.50 1418.00 1169.00 822.50 495.50 315.50 68.50 110.50 269.50 603.50 1074.50 1138.00 9063.50
1956 1188.50 1492.50 1160.50 735.00 366.50 105.50 78.00 169.50 226.50 577.00 1174.50 1528.00 8802.00
1957 1506.00 1073.00 1135.50 845.50 580.50 270.50 67.00 100.00 357.50 588.00 1155.00 1332.00 9010.50
1958 1590.50 1030.50 1168.50 846.50 397.00 137.00 100.00 94.00 253.50 604.00 968.00 1211.00 8400.50
1959 1371.50 1194.50 1173.50 799.00 497.50 141.50 98.50 106.50 374.50 690.50 1014.50 1321.00 8783.00
1960 1352.00 1360.50 1012.00 687.00 509.00 183.50 81.00 95.00 259.50 636.00 961.50 1407.50 8544.50
1961 1519.00 1115.50 1038.00 811.00 472.50 197.00 77.00 66.50 501.50 655.50 1098.50 1419.50 8971.50
1962 1811.50 907.50 f 1290.50 659.50 503.50 275.00 139.00 130.20 a 283.50 539.00 851.50 1293.50 7776.70
1963 1589.00 1050.00 1127.00 661.00 360.12 a 219.81 d 21.91 b 73.48 d 167.50 418.50 920.00 1374.00 7982.32
1964 1614.00 1514.50 1367.00 815.00 465.50 258.00 14.00 165.00 328.50 611.00 1029.50 1406.00 9588.00
1965 1399.00 1289.00 1425.50 774.00 546.00 283.50 110.50 201.50 447.00 572.50 898.50 1337.50 9284.50
1966 1499.00 1310.00 1019.50 740.50 461.00 259.50 19.50 124.00 292.00 703.00 875.50 1661.50 8965.00
1967 1385.50 1303.00 932.50 710.50 575.50 339.50 79.00 156.50 308.00 605.50 977.50 1479.00 8852.00
1968 1573.50 1278.00 1189.50 898.50 576.50 215.00 101.00 195.00 392.00 614.50 1215.50 1375.50 9624.50
1969 1197.50 1311.50 1339.00 675.00 405.00 348.50 36.00 50.00 277.00 833.00 1136.00 1337.50 8946.00
1970 1392.00 1146.50 1175.00 932.50 487.00 267.50 76.00 71.50 386.50 859.00 974.50 1334.50 9102.50
1971 1246.00 1186.50 1136.50 755.00 562.50 225.50 100.50 76.00 433.50 657.00 1075.00 1476.50 8930.50
1972 1406.50 1153.00 886.00 700.50 511.50 200.00 103.50 161.00 361.00 634.50 1180.00 1551.00 8848.50
1973 1720.00 1460.50 1227.50 956.50 573.50 288.00 199.00 147.00 372.00 616.00 966.50 1371.50 9898.00
1974 1561.00 1428.00 968.50 841.50 448.50 245.00 114.50 189.00 394.00 613.50 1028.50 1523.50 9355.50
1975 1408.00 1324.50 1072.50 904.50 571.50 341.00 105.00 188.00 380.00 660.00 1108.50 1277.00 9340.50
1976 1478.50 1149.50 1236.00 755.50 549.50 330.00 89.50 178.00 371.50 766.00 1067.00 1410.00 9381.00
1977 1423.50 1152.50 1181.00 704.50 510.50 117.50 58.00 112.00 268.50 642.50 942.00 1173.50 8286.00
1978 1365.50 1191.50 1002.00 697.00 562.00 223.00 69.50 176.50 322.50 624.00 956.00 1531.50 8721.00
1979 1696.50 1234.00 1148.50 761.00 527.00 257.50 69.00 150.00 264.50 574.00 1281.50 1557.00 9520.50
1980 1367.50 1286.00 1252.50 946.00 316.00 o 225.00 b 195.00 207.18 a 339.50 710.00 1016.50 1088.00 8633.18
1981 1292.50 1101.50 1116.00 604.50 487.50 170.50 102.50 152.50 290.36 b 658.50 824.00 1201.00 8001.36
1982 1335.67 b 1310.50 999.50 854.00 571.00 343.50 124.00 98.50 387.50 817.50 1175.00 1474.50 9491.17
1983 1495.50 1212.50 1149.50 947.00 666.50 318.50 141.50 92.00 371.00 671.50 1031.50 1331.34 c 9428.34
1984 1872.50 1565.50 1253.00 1008.00 509.50 349.00 158.50 184.50 356.00 938.50 1087.00 1388.50 10670.50
1985 1595.00 1441.00 1131.50 730.50 523.00 194.48 a 105.50 150.50 0.00 z 763.50 1177.50 1448.50 9260.98
1986 1505.05 a 1106.00 964.00 788.50 547.50 170.00 0.00 z 0.00 z 434.50 822.50 1165.50 1421.00 8924.55
1987 1460.50 1139.00 1131.50 709.50 487.50 190.00 122.50 160.50 456.00 696.50 1122.86 b 0.00 z 7676.36
1988 1724.00 1466.50 1345.50 835.50 611.50 219.50 76.00 105.50 441.50 657.50 1107.50 1636.00 10226.50
1989 1721.02 a 1423.50 1086.00 752.00 554.50 357.00 170.00 282.50 417.00 800.00 1108.85 d 1569.50 10241.86
1990 1496.78 a 1267.50 1084.50 791.50 656.00 229.50 244.00 275.00 389.00 821.00 977.50 1512.00 9744.28
1991 1530.00 1190.00 997.00 775.00 415.00 188.00 89.00 196.00 431.50 709.00 1069.50 1435.00 9025.00
1992 1553.00 1184.00 993.50 581.50 440.00 301.00 178.50 182.00 348.50 583.00 1227.00 1456.00 9028.00
1993 1518.50 1336.00 1215.00 908.00 610.50 464.00 323.00 334.00 558.00 901.50 1354.50 1596.50 11119.50
1994 1519.00 1405.50 1158.50 869.50 430.50 158.50 78.00 88.50 322.50 661.00 1155.50 1376.00 9223.00
1995 1642.00 0.00 z 1140.50 928.00 715.00 380.50 99.50 o 71.50 k 341.00 778.50 900.00 1337.50 8163.00
1996 1497.00 1371.50 1221.00 846.50 459.50 243.00 100.50 133.00 448.50 815.50 1100.50 1444.00 9680.50
1997 1640.00 1370.50 1086.00 927.00 581.50 258.50 151.00 158.50 292.50 726.50 1044.50 1466.00 9702.50
1998 1391.50 1222.00 1129.50 882.50 523.50 0.00 z 0.00 z 0.00 z 0.00 z 775.50 1036.50 1525.50 8486.50
1999 1365.55 a 1154.50 983.50 896.00 606.50 296.00 161.00 214.00 491.50 750.00 925.34 a 1443.57 a 9287.46
2000 1334.00 1180.00 1059.00 668.00 369.42 a 243.50 86.50 135.50 360.50 720.50 1379.46 b 1483.00 9019.38
2001 1693.00 1175.00 1087.00 773.00 560.00 283.00 81.63 a 168.00 400.50 702.00 1033.50 1453.50 9410.13
2002 1528.50 1456.50 1235.00 710.00 295.00 n 161.00 33.00 134.00 402.00 845.50 1256.00 1493.00 9254.50
2003 1265.50 1241.33 a 997.00 f 857.00 592.00 370.50 53.50 148.50 447.00 661.00 1144.00 1387.50 8167.83
2004 1628.07 d 1390.50 1023.50 797.00 559.50 331.50 200.50 205.00 f 439.00 706.50 1105.00 1574.00 9755.07
2005 1447.59 c 1350.74 a 1204.50 811.00 564.00 303.50 g 95.50 244.50 415.00 775.50 1156.50 1648.88 b 9713.71
2006 1572.00 1534.00 1264.00 835.00 602.50 295.50 169.00 311.50 697.00 982.00 673.50 o 1654.00 9916.50
2007 1934.00 1264.00 1159.50 947.50 717.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1004.50 1539.67 a 8566.17
2008 1733.50 1403.50 1301.50 982.50 607.00 222.50 50.00 100.00 g 335.50 303.00 o 951.00 840.00 k 7587.00
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 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
2012 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 2015.00 1950.00 2015.00 a 5980.00
2013 2015.00 1820.00 a 1560.00 g 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 3835.00
Period of Record Statistics
MEAN 1509.92 1278.73 1138.55 796.88 529.72 262.94 109.80 157.25 362.30 710.07 1080.19 1421.61 9213.14
S.D. 175.07 153.63 116.26 102.70 77.82 76.05 57.40 58.76 82.95 188.06 159.41 144.25 628.62
SKEW 0.38 0.63 0.30 -0.17 -0.06 0.18 0.93 0.76 0.93 4.93 2.34 0.75 0.31
MAX 2015.00 1820.00 1425.50 1008.00 717.00 464.00 323.00 334.00 697.00 2015.00 1950.00 2015.00 11119.50
MIN 1129.00 937.00 886.00 562.00 360.12 105.50 4.00 50.00 167.50 418.50 824.00 1088.00 7604.00
NO YRS 69 67 67 68 66 65 65 64 67 69 70 69 54