DURANGO, COLORADO

Monthly Total Heating Degree Days

(052432)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 199103
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
1894 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 379.50 g 687.50 988.50 1676.00
1895 1198.00 1039.50 812.00 528.00 325.50 132.00 f 35.50 4.50 147.00 0.00 z 914.00 1246.50 6250.50
1896 983.50 912.50 764.00 579.00 319.00 0.00 z 1.50 14.50 173.50 485.00 886.50 1017.50 6136.50
1897 1177.50 1077.50 966.00 549.00 253.50 135.50 44.00 2.50 115.50 535.50 754.00 1165.50 6776.00
1898 1265.50 840.50 900.00 456.00 402.00 109.00 10.00 0.50 178.50 557.50 900.00 1419.00 7038.50
1899 1406.00 1082.00 817.50 499.50 384.50 97.50 5.00 20.50 99.50 f 521.50 709.50 1149.50 6693.00
1900 998.00 885.00 646.00 634.50 264.50 66.50 19.00 85.00 317.00 573.00 899.00 1209.50 6597.00
1901 1267.50 1052.00 1001.50 733.00 507.00 358.45 a 0.00 p 0.00 177.00 413.50 696.50 1094.00 7300.45
1902 1063.50 906.00 956.50 499.50 244.00 i 30.00 a 36.50 9.00 163.00 458.50 801.00 1196.50 6120.00
1903 1266.00 1145.50 869.00 591.00 380.50 122.50 20.50 i 8.00 239.00 441.00 731.00 1134.50 6928.00
1904 1255.50 816.50 743.50 496.50 320.50 139.00 23.00 10.00 145.00 557.50 784.00 1155.50 6446.50
1905 1243.50 1030.50 776.00 610.00 449.50 99.50 20.50 h 7.00 178.50 560.00 813.00 1279.50 7047.00
1906 945.00 h 859.00 861.00 597.50 365.50 134.00 48.50 42.00 231.00 535.00 824.00 960.00 5457.50
1907 1117.50 737.00 751.00 552.50 494.50 222.50 7.00 31.50 211.03 a 445.50 846.00 1153.50 6569.53
1908 1204.50 771.50 h 806.50 554.00 508.50 178.50 1.00 52.81 d 182.07 a 335.50 j 882.00 1251.00 5620.88
1909 1094.00 1056.50 934.02 d 665.00 467.30 d 80.19 d 2.00 17.00 228.00 352.50 f 844.00 1497.50 6885.51
1910 1006.50 g 1062.00 457.50 j 519.50 299.00 35.00 h 1.50 16.50 93.50 381.50 g 746.25 b 732.00 h 2738.25
1911 1046.77 a 969.50 567.00 h 575.56 c 338.62 e 121.00 37.00 53.22 a 76.50 n 592.00 936.21 a 1009.00 h 4669.86
1912 493.50 r 960.00 884.00 707.50 391.00 131.90 a 47.00 34.50 332.59 a 604.00 823.00 1291.50 6206.98
1913 1343.50 1047.00 1028.50 586.00 304.50 118.50 26.87 a 4.00 267.50 591.50 748.00 1327.50 7393.37
1914 1235.50 1079.68 c 778.62 a 531.00 321.00 118.50 27.50 42.50 135.00 e 512.53 a 716.00 1261.50 6759.33
1915 1358.00 1043.00 922.50 529.00 448.98 a 175.50 35.28 b 23.00 191.00 f 485.50 831.00 1105.00 6956.76
1916 1217.00 996.50 735.00 546.92 d 400.50 128.00 3.62 a 40.00 185.50 f 471.00 f 871.00 1251.50 6190.04
1917 1378.43 b 1084.50 1093.00 684.83 a 558.60 e 97.78 c 1.00 39.00 144.00 478.50 713.50 975.00 7248.13
1918 1320.50 947.15 b 758.31 e 629.50 429.50 33.60 e 10.50 41.91 d 205.00 445.50 956.50 1272.50 7050.47
1919 1431.00 1130.00 953.50 546.00 301.50 127.50 d 4.50 g 6.89 d 146.50 665.00 854.00 1149.50 7311.39
1920 1153.50 892.00 901.00 760.50 363.00 156.00 12.50 79.50 254.50 609.00 676.00 f 962.00 h 5181.50
1921 1110.50 906.00 745.50 690.00 395.00 149.50 16.50 34.00 199.50 369.50 f 765.50 1017.00 6029.00
1922 1345.50 1045.00 989.13 d 701.00 391.00 92.50 0.00 z 4.00 117.00 0.00 z 698.50 h 1105.50 5790.63
1923 1092.50 1019.00 973.00 655.00 354.20 d 188.00 9.50 44.00 300.00 590.60 b 833.40 e 1127.50 7186.71
1924 1397.50 880.00 992.52 a 614.50 337.50 100.50 3.88 c 32.50 216.00 524.50 758.00 1338.50 7195.89
1925 1434.00 941.00 580.00 h 520.50 263.00 147.50 3.50 f 78.50 246.00 612.50 991.00 1243.50 6477.50
1926 1388.50 920.50 844.48 b 637.50 328.50 f 169.00 136.00 58.50 225.60 e 574.50 951.50 1342.50 7248.58
1927 917.00 f 926.00 920.00 638.00 443.76 d 243.00 82.50 138.98 a 248.50 h 621.79 e 892.00 1428.50 6334.53
1928 1327.50 1043.00 855.48 e 410.00 j 318.00 g 245.00 97.50 138.00 252.00 588.00 1008.50 1402.48 b 6957.46
1929 1465.50 1259.50 963.50 746.00 493.00 218.00 0.50 11.00 211.00 480.00 670.00 h 712.00 i 5848.00
1930 1000.00 i 906.00 865.00 423.50 440.20 a 79.50 6.50 10.00 202.00 544.00 936.21 a 1181.50 5594.41
1931 1153.50 817.50 873.00 541.00 380.00 79.00 8.00 8.50 120.00 263.50 i 917.00 1371.00 6268.50
1932 1447.50 909.50 853.50 582.50 367.00 157.00 2.00 17.05 a 150.50 515.00 773.50 1346.50 7121.55
1933 1351.00 1285.50 808.00 719.50 499.00 84.50 3.50 19.50 106.00 395.00 747.50 1039.50 7058.50
1934 770.50 i 624.50 g 644.00 470.69 a 223.50 141.00 1.50 16.00 195.00 h 453.50 879.00 1167.50 3996.69
1935 1237.50 980.00 976.00 680.00 526.00 134.50 47.00 42.00 257.50 642.00 990.50 1269.50 7782.50
1936 1307.50 1079.00 872.00 623.50 358.00 110.50 35.50 43.00 179.00 504.27 a 778.50 1059.00 6949.77
1937 1554.13 a 1120.00 940.00 652.00 320.50 188.00 25.00 4.50 162.50 514.50 816.50 1129.50 7427.13
1938 1206.50 961.50 915.00 631.50 478.00 136.00 63.50 35.00 168.50 526.00 1067.00 1114.00 7302.50
1939 1236.00 1354.00 868.50 523.50 360.00 157.00 21.00 33.00 155.00 619.50 810.00 1096.50 7234.00
1940 1324.50 1072.00 821.50 605.00 342.00 94.00 16.50 41.50 177.50 494.50 926.00 1161.00 7076.00
1941 1148.72 d 857.00 845.50 708.00 347.00 226.50 13.50 44.50 293.00 571.00 841.00 1125.50 7021.22
1942 1244.50 1096.00 992.50 568.00 469.50 204.00 27.00 40.50 227.00 397.00 h 834.00 1093.50 6796.50
1943 1219.50 969.50 883.00 468.00 428.26 d 203.00 19.50 8.00 187.50 557.00 854.00 1128.50 6925.76
1944 1311.82 a 1058.00 987.00 744.50 420.50 247.50 27.00 56.50 220.50 455.00 908.50 1168.00 7604.82
1945 1292.00 932.50 951.50 730.00 438.50 283.50 22.00 6.64 c 243.00 473.00 912.50 970.50 i 6285.14
1946 1299.50 993.00 811.68 a 439.50 457.00 109.00 6.50 17.00 182.50 632.50 882.50 1004.00 6834.68
1947 1326.00 848.50 833.50 648.00 328.00 225.50 4.00 29.50 139.50 472.00 1017.00 1198.27 e 7069.77
1948 1160.50 1043.00 1052.97 a 544.00 351.00 180.00 11.22 b 20.00 157.00 519.00 1006.00 1179.50 7224.19
1949 1356.00 1202.00 876.00 542.50 409.00 158.50 4.00 35.00 149.50 590.00 713.00 1204.50 7240.00
1950 1250.00 840.50 866.00 561.00 465.50 167.50 27.50 56.00 278.50 356.00 776.00 957.00 6601.50
1951 1164.00 944.50 873.50 592.00 359.50 215.50 8.50 31.50 231.00 563.50 931.50 1316.00 7231.00
1952 1224.50 1093.00 1024.00 540.00 362.00 124.50 19.50 5.50 149.50 437.00 957.78 c 1193.50 7130.78
1953 1041.00 949.50 787.00 637.00 495.50 89.00 4.50 26.00 178.50 519.25 e 750.50 1232.00 6709.75
1954 1091.00 754.00 884.50 474.50 299.50 151.50 0.00 38.50 187.50 415.50 717.50 1119.50 6133.50
1955 1263.50 1150.50 865.00 673.00 419.50 168.50 37.00 10.50 182.00 444.00 862.00 1093.78 a 7169.28
1956 965.50 1090.00 832.50 591.50 309.00 51.50 15.50 61.00 127.00 509.50 950.00 1149.00 6652.00
1957 1109.50 798.50 794.50 651.50 453.00 127.50 19.50 20.00 218.00 517.00 952.00 1058.50 6719.50
1958 1137.91 b 832.50 949.00 654.50 259.50 84.50 18.00 9.00 176.00 478.00 796.50 960.00 6355.41
1959 1104.50 973.00 851.00 556.00 359.50 63.50 6.50 g 16.50 235.00 539.50 846.00 1044.00 6588.50
1960 1336.50 1158.00 790.50 569.50 391.00 72.50 8.00 18.00 113.00 515.50 799.50 1142.50 6914.50
1961 1175.00 876.50 814.50 605.50 332.00 93.50 10.00 12.50 297.50 532.50 870.50 1284.50 6904.50
1962 1228.00 880.00 947.50 469.50 383.00 140.00 13.50 27.50 146.50 446.50 723.00 1039.00 6444.00
1963 1421.00 853.50 842.50 584.00 243.00 154.50 0.00 13.00 88.50 363.50 787.50 1143.00 6494.00
1964 1248.50 1111.50 980.00 664.00 357.00 163.50 1.00 50.00 202.00 429.00 867.00 1174.00 7247.50
1965 1100.00 995.00 929.00 606.00 415.00 190.50 1.50 41.00 269.50 436.50 722.50 1048.00 6754.50
1966 1296.00 1102.00 785.50 533.00 286.50 115.50 1.50 19.50 151.00 483.50 713.00 1165.50 6652.50
1967 1277.50 888.50 694.00 640.50 385.00 178.50 0.50 52.00 178.00 489.50 756.00 1318.00 6858.00
1968 1255.50 901.50 812.00 681.00 413.00 113.50 21.50 103.00 265.50 509.00 872.50 1286.50 7234.50
1969 1135.50 1020.96 a 990.00 535.50 306.00 198.00 17.50 11.50 167.00 639.50 862.50 1042.00 6925.96
1970 1170.00 805.50 931.50 733.00 358.00 199.50 3.00 3.50 268.00 655.50 836.00 1165.00 7128.50
1971 1261.04 c 942.00 819.95 a 606.67 c 430.00 132.00 9.00 g 4.17 e 277.50 548.91 b 872.00 1235.19 b 7129.43
1972 1152.37 e 870.50 653.58 a 554.50 332.50 80.00 c 3.50 21.50 g 199.29 b 345.50 f 786.00 f 1295.80 a 5142.03
1973 1341.55 b 988.75 d 928.40 b 701.40 e 391.12 a 159.00 28.50 n 20.50 288.75 b 509.00 816.00 1135.38 c 7279.84
1974 1283.18 c 792.50 h 709.68 c 610.50 254.41 b 103.45 a 0.00 h 59.00 175.20 e 491.23 e 835.56 c 1207.00 5729.21
1975 1353.50 1051.62 b 928.00 594.50 f 450.00 165.50 3.50 25.12 b 199.50 516.50 545.00 i 1194.00 5887.24
1976 1233.00 868.50 851.98 a 568.50 323.50 115.00 0.00 23.50 187.50 588.50 838.50 1138.50 6736.98
1977 1386.50 881.00 933.50 503.50 382.50 13.50 0.50 0.55 c 83.50 i 371.00 g 787.50 1032.50 5921.55
1978 1181.50 1022.00 734.50 537.50 430.00 88.00 8.00 35.50 184.50 421.00 808.97 a 1385.18 a 6836.65
1979 1477.50 1124.00 925.00 588.50 368.00 139.14 a 18.00 64.50 28.00 o 408.00 1033.00 1083.50 7229.14
1980 1141.00 976.50 988.00 641.00 457.25 a 71.90 a 3.50 42.50 157.00 523.38 a 822.50 922.00 6746.53
1981 974.00 850.00 898.50 485.00 417.00 86.00 9.00 27.38 a 126.00 538.00 770.00 1054.50 6235.38
1982 1319.50 1012.50 852.00 608.50 389.00 151.50 25.50 7.50 175.50 620.00 882.00 1201.50 7245.00
1983 1137.50 915.00 857.00 739.50 412.50 153.00 7.00 0.00 133.97 a 487.50 911.50 1168.50 6922.97
1984 1305.00 1016.00 865.00 673.00 214.50 116.50 0.00 6.50 128.00 703.00 874.50 1081.50 6983.50
1985 1152.00 1009.00 840.00 500.00 324.50 61.50 3.50 9.50 281.00 478.00 924.00 1168.00 6751.00
1986 974.50 809.50 688.00 574.50 350.50 72.00 26.00 10.00 307.00 562.50 851.50 1063.50 6289.50
1987 1216.00 901.00 913.00 487.00 353.50 42.00 15.50 44.50 195.00 444.50 857.50 1212.00 6681.50
1988 1394.50 981.00 867.50 520.50 347.50 49.00 1.00 7.00 201.00 372.50 869.00 1192.50 6803.00
1989 1302.50 937.00 665.00 408.50 245.00 80.50 2.50 20.50 111.50 526.50 807.50 1139.00 6246.00
1990 1298.50 965.00 745.00 480.00 366.00 46.00 6.00 34.00 122.00 490.00 834.50 1380.50 6767.50
1991 1282.00 852.00 925.50 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 3059.50
Period of Record Statistics
MEAN 1240.93 979.44 866.44 590.96 377.53 134.64 17.53 29.70 193.97 518.18 844.82 1171.92 6909.16
S.D. 123.80 116.82 95.39 81.95 72.66 59.55 22.18 26.52 56.64 72.44 84.86 118.42 342.89
SKEW -0.13 0.50 -0.26 0.08 0.04 0.71 2.78 1.82 0.41 0.09 0.27 0.32 -0.10
MAX 1554.13 1354.00 1093.00 760.50 558.60 358.45 136.00 138.98 332.59 703.00 1067.00 1497.50 7782.50
MIN 965.50 737.00 644.00 408.50 214.50 13.50 0.00 0.00 88.50 356.00 687.50 922.00 6133.50
NO YRS 91 94 94 94 93 93 86 95 88 85 92 92 59