DEL NORTE, COLORADO

Monthly Total Heating Degree Days

(052184)

Base Temperature = 65 F

File last updated on Jul 24, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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 0.00 z 104.50 189.50 599.50 1097.00 1280.00 3270.50
1949 1558.50 1280.00 983.00 641.38 a 475.50 212.50 50.00 95.50 262.50 749.68 a 756.50 1345.50 8410.56
1950 1325.50 939.50 1038.50 742.00 623.50 153.50 133.50 220.00 373.50 493.50 872.50 1111.35 a 8026.85
1951 1232.00 1081.00 1025.07 a 711.50 411.50 233.00 24.00 79.00 305.00 683.50 1077.00 1364.50 8227.07
1952 1374.50 1254.00 1163.50 616.50 423.00 122.00 83.00 15.50 z 236.40 e 508.00 1148.50 1493.50 8422.90
1953 1151.50 1105.00 902.50 723.50 545.00 126.50 38.00 100.50 246.00 555.00 927.50 1427.50 7848.50
1954 1296.50 845.00 982.50 526.50 359.00 176.50 31.50 101.00 248.50 507.00 813.50 1277.50 7165.00
1955 1388.80 a 1219.50 950.00 757.50 473.50 248.00 72.50 53.00 264.83 a 546.50 955.50 1146.50 8076.13
1956 1142.35 a 1241.00 887.12 a 685.71 b 329.63 a 105.00 a 63.50 166.50 212.00 577.00 1074.11 b 1187.00 7670.92
1957 1287.00 873.00 933.00 773.28 a 571.50 216.50 89.90 a 110.50 318.50 621.50 1148.50 1222.95 a 8166.13
1958 1325.25 a 963.00 1051.50 757.76 a 342.00 136.55 a 86.00 62.00 243.21 b 545.50 912.41 a 1041.00 7466.19
1959 1339.00 1092.52 a 973.63 d 650.89 b 448.98 a 116.50 70.00 90.00 271.11 c 607.17 b 942.86 b 1149.07 a 7751.73
1960 1498.00 1339.00 893.83 a 620.69 a 473.78 a 139.00 66.00 92.00 229.82 b 474.50 i 876.72 a 1383.50 7612.35
1961 1404.50 1015.78 a 939.50 688.00 414.00 153.50 96.50 98.00 377.50 605.00 1132.50 1508.50 8433.28
1962 1377.50 959.00 1112.50 568.00 435.00 234.50 121.00 127.00 279.50 511.00 858.50 1089.50 7673.00
1963 1442.00 1005.00 970.50 641.00 332.00 219.00 25.00 101.50 194.00 450.00 881.00 1262.50 7523.50
1964 1387.00 1368.00 1200.00 744.00 405.50 243.50 26.00 129.00 305.00 518.50 1000.50 1450.00 8777.00
1965 1370.50 1179.50 1134.00 677.50 489.50 272.50 85.00 149.50 372.00 501.00 804.50 1185.50 8221.00
1966 1503.00 1313.00 925.00 630.50 358.00 208.00 12.00 114.00 240.00 562.65 a 811.00 1202.00 7879.15
1967 1262.50 988.00 785.50 675.50 460.50 261.50 36.00 145.00 281.00 510.50 828.00 1444.50 7678.50
1968 1513.00 1159.50 966.50 776.90 a 458.50 143.00 98.00 188.00 345.50 510.50 982.50 1350.00 8491.90
1969 1150.50 1062.50 1036.50 584.00 346.68 a 282.00 58.50 50.50 296.00 775.00 915.50 1251.50 7809.18
1970 1331.50 902.50 1014.50 807.00 391.00 256.00 67.00 62.50 358.50 729.50 889.00 1184.00 7993.00
1971 1259.00 1056.00 914.50 700.00 497.50 198.00 116.50 100.00 337.50 630.50 961.50 1300.50 8071.50
1972 1316.50 955.00 728.50 598.00 420.50 161.00 97.50 127.50 266.50 541.50 1243.00 1493.50 7949.00
1973 1590.00 1235.50 1040.50 798.00 414.50 217.00 146.50 133.00 340.00 568.50 830.00 1163.00 8476.50
1974 1486.00 1261.00 754.50 687.50 321.50 187.50 116.50 190.00 328.50 547.50 946.50 1412.50 8239.50
1975 1536.00 1195.50 982.50 778.50 478.00 265.00 87.00 147.50 342.50 572.00 1000.50 1332.50 8717.50
1976 1429.50 944.00 941.00 649.50 428.50 228.00 66.50 192.00 316.55 a 678.50 913.50 1425.50 8213.05
1977 1466.00 1019.00 1025.00 599.50 429.00 116.00 59.00 67.68 a 239.50 507.00 851.50 1063.50 7442.68
1978 1183.50 961.50 746.00 588.00 497.55 a 148.50 65.00 138.50 248.50 475.50 877.50 1579.00 7509.05
1979 1604.50 0.00 z 1046.00 624.50 433.50 207.00 78.50 163.00 216.00 463.00 1129.00 1172.50 7137.50
1980 1233.00 943.00 1010.50 716.00 495.00 120.00 5.50 108.50 221.50 618.00 889.00 965.00 7325.00
1981 1087.50 948.00 920.00 502.50 455.50 88.50 23.00 113.50 248.00 609.00 799.50 1176.50 6971.50
1982 1275.50 1135.00 897.00 694.00 464.50 219.00 47.50 0.00 z 286.00 657.50 967.00 1229.50 7872.50
1983 1191.00 989.50 893.00 810.00 505.50 239.00 33.50 34.00 171.50 517.00 990.00 1397.00 7771.00
1984 1680.50 1345.00 1071.50 747.50 277.50 185.50 14.00 56.00 217.50 739.50 946.00 1260.50 8541.00
1985 1405.50 1210.00 903.00 582.50 388.00 133.00 52.50 64.50 344.00 549.00 967.76 a 1288.00 7887.76
1986 1112.00 925.50 753.00 622.50 445.50 145.50 72.50 54.00 360.00 612.50 952.50 1277.00 7332.50
1987 1388.50 1095.00 1056.50 587.50 424.00 107.50 62.00 107.50 293.00 469.00 1011.00 1442.50 8044.00
1988 1610.00 1216.50 981.50 584.50 446.00 138.00 53.00 82.50 323.00 472.50 975.00 1396.00 8278.50
1989 1495.00 1228.50 771.50 541.00 350.50 211.00 39.00 129.50 293.50 634.50 855.00 1254.50 7803.50
1990 1371.50 1016.00 825.00 579.00 458.50 119.00 97.00 166.00 238.50 602.00 933.50 1442.50 7848.50
1991 1539.00 993.00 969.00 708.00 436.50 214.50 82.50 84.00 312.00 541.50 1161.00 1566.50 8607.50
1992 1633.00 1292.50 1024.00 516.50 373.50 213.00 129.00 161.50 276.50 498.50 1152.50 1561.00 8831.50
1993 1469.00 1191.50 919.50 665.00 431.00 209.50 78.00 156.00 364.50 674.00 1121.00 1366.50 8645.50
1994 1268.00 1099.00 817.50 655.00 377.50 97.00 68.50 56.00 276.00 644.00 1047.00 1202.00 7607.50
1995 1209.50 788.00 874.50 729.00 521.00 248.50 123.50 42.50 314.50 586.00 847.50 1117.00 7401.50
1996 1238.50 925.00 920.00 630.50 257.00 119.50 23.50 85.50 324.50 646.00 916.50 1224.00 7310.50
1997 1366.50 1109.00 851.00 756.00 411.00 177.00 74.00 90.50 222.50 626.50 1035.00 1445.50 8164.50
1998 1337.00 1092.50 954.00 749.50 403.00 222.00 40.50 93.00 220.00 665.00 941.50 1233.00 7951.00
1999 1167.50 974.00 841.00 796.00 544.50 239.50 60.50 134.00 356.00 591.00 825.00 1296.00 7825.00
2000 1221.00 1008.50 944.00 622.76 a 355.00 168.00 56.50 78.50 283.50 674.50 1208.00 1288.50 7908.76
2001 1462.17 a 1223.50 1007.50 685.00 417.00 216.50 93.00 159.00 300.50 658.00 971.00 1430.00 8623.17
2002 1478.50 1229.00 1083.50 583.00 449.50 0.00 z 41.50 134.50 355.50 717.50 1023.00 1441.00 8536.50
2003 1169.00 1129.00 959.50 719.00 441.00 264.00 25.50 97.00 372.00 554.50 1041.00 1338.00 8109.50
2004 1388.50 1430.00 844.50 753.00 469.50 250.50 165.00 206.00 407.50 725.00 1020.50 1433.75 a 9093.75
2005 927.00 i 1097.50 1033.50 751.50 467.00 277.50 80.50 180.50 306.00 623.50 972.00 1353.50 7143.00
2006 1331.00 1117.00 1014.00 670.86 a 409.50 165.54 b 65.50 l 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4707.90
Period of Record Statistics
MEAN 1362.46 1097.61 951.49 672.08 430.38 189.05 68.55 113.81 289.20 588.73 965.99 1305.61 7995.89
S.D. 144.13 146.58 104.38 79.36 68.26 54.21 35.42 44.69 55.75 80.84 113.57 139.94 468.84
SKEW 0.13 0.16 -0.13 -0.14 0.02 -0.12 0.48 0.37 -0.01 0.35 0.45 -0.11 0.12
MAX 1680.50 1430.00 1200.00 810.00 623.50 282.00 165.00 220.00 407.50 775.00 1243.00 1579.00 9093.75
MIN 1087.50 788.00 728.50 502.50 257.00 88.50 5.50 34.00 171.50 450.00 756.50 965.00 6971.50
NO YRS 57 57 58 58 58 57 57 56 58 57 58 58 51