WESTCLIFFE, COLORADO

Monthly Total Heating Degree Days

(058931)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201302
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
1895 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 210.00 143.00 264.00 697.50 1088.50 1448.00 3851.00
1896 1084.50 1161.50 1078.00 467.00 g 372.50 167.07 a 106.84 c 144.00 264.00 649.50 916.61 b 1132.50 7077.02
1897 1298.00 1130.50 1032.50 667.00 421.50 262.00 169.00 139.50 233.50 676.00 0.00 z 1405.69 b 7435.19
1898 1552.50 1083.50 1076.50 630.52 a 528.50 175.50 55.80 a 9.00 y 0.00 z 729.05 c 1027.50 1343.00 8202.37
1899 1292.50 1249.50 1026.21 b 707.59 a 507.50 214.50 147.00 100.00 285.00 713.00 876.00 1176.00 8294.79
1900 1127.00 1082.00 881.50 864.50 492.00 209.00 101.00 103.00 361.00 633.00 898.50 1215.50 7968.00
1901 1233.50 1089.93 a 1124.00 845.00 547.00 237.50 48.50 125.50 357.50 624.00 814.50 1183.00 8229.93
1902 1222.50 991.00 1128.00 652.50 455.50 176.00 158.62 a 137.50 384.50 640.50 949.50 1130.00 8026.12
1903 1228.50 1360.50 1032.00 480.50 l 615.00 377.59 a 6.50 l 0.00 z 275.50 m 668.80 d 902.50 1234.50 7419.38
1904 1354.00 919.50 839.50 742.00 466.55 a 325.00 123.50 126.00 293.50 668.00 930.50 1261.50 8049.55
1905 1312.50 1239.00 908.00 785.50 367.50 k 155.00 156.11 c 128.00 257.00 719.20 a 911.50 1388.50 7960.31
1906 1182.00 1025.00 733.50 j 684.00 447.50 172.50 183.50 169.00 340.18 b 486.00 q 955.00 1014.00 6172.68
1907 1060.50 850.00 747.00 696.00 646.00 270.00 90.50 116.50 317.50 601.50 1018.00 1201.00 7614.50
1908 707.50 n 0.00 z 855.00 740.00 593.50 213.00 114.00 132.00 331.00 759.50 1121.00 1302.50 6161.50
1909 633.00 l 1074.50 1024.50 803.00 597.00 180.50 34.00 79.50 371.00 601.50 894.00 1550.00 7209.50
1910 1214.00 1139.00 748.50 654.50 494.00 178.00 41.91 d 117.00 188.50 596.50 781.00 1135.00 7287.91
1911 1005.43 a 1147.48 a 846.82 a 672.00 402.50 0.00 z 121.86 b 124.00 207.00 395.00 n 1064.00 1480.50 7071.59
1912 1206.00 1198.50 1033.00 770.69 a 496.00 306.50 99.00 124.50 470.00 663.50 895.00 888.00 l 7262.69
1913 1372.00 1176.00 1063.50 0.00 z 463.00 331.50 209.50 171.00 461.00 757.50 836.00 1605.50 8446.50
1914 1175.00 1081.50 947.80 d 721.00 420.50 169.50 92.50 136.00 250.50 656.00 903.50 1481.50 8035.30
1915 1484.50 1046.00 1148.50 639.00 566.00 217.50 111.50 191.50 288.00 633.00 990.00 1255.50 8571.00
1916 1157.00 998.27 c 837.50 703.50 506.50 190.50 38.50 110.00 353.50 669.50 1143.50 1351.50 8059.77
1917 1359.50 1036.50 1148.00 829.50 694.00 242.50 47.53 a 216.43 d 315.50 743.50 935.00 1074.50 8642.46
1918 1464.00 1043.00 840.50 777.00 430.00 94.50 33.00 77.00 277.00 537.00 1088.00 1309.00 7970.00
1919 1509.00 1234.50 1071.50 653.00 367.50 185.50 13.00 34.50 150.00 621.50 985.86 a 1230.50 8056.36
1920 1167.50 1054.50 1017.50 828.50 399.00 176.00 47.50 141.00 0.00 z 0.00 z 771.50 0.00 z 5603.00
1921 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 376.00 l 805.18 b 1058.50 1863.68
1922 1392.42 a 1049.50 1076.50 788.28 a 487.22 a 155.00 50.12 a 30.50 0.00 z 0.00 z 0.00 z 0.00 z 5029.53
1923 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
1924 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
1925 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
1926 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
1927 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
1928 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
1929 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
1930 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
1931 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
1932 0.00 z 483.00 l 1054.50 651.00 404.50 202.50 22.00 41.50 257.14 b 544.50 941.00 1584.50 5703.14
1933 1423.50 1509.00 986.50 837.00 508.00 64.00 26.00 85.00 138.50 522.00 838.50 975.50 7913.50
1934 1109.00 888.00 791.50 597.50 282.00 154.50 3.50 44.00 300.50 0.00 z 904.50 1123.00 6198.00
1935 1017.00 978.00 871.50 639.50 549.50 141.50 37.00 40.50 286.50 565.50 907.00 1201.50 7235.00
1936 1214.00 1006.50 867.50 630.50 348.75 a 109.50 39.00 64.00 328.00 663.00 973.00 1199.50 7443.25
1937 1430.00 983.50 996.00 696.00 393.50 191.00 27.00 21.50 220.86 a 587.50 872.00 1118.14 b 7537.00
1938 1256.50 1032.50 879.50 666.50 487.00 161.00 85.50 61.00 276.72 a 542.00 1030.50 1167.50 7646.22
1939 1292.50 1298.00 764.00 h 609.83 a 397.50 129.00 g 25.00 89.50 174.00 569.62 c 898.00 1136.09 d 6490.04
1940 1517.50 1215.50 907.50 687.00 409.50 178.93 b 43.73 c 132.50 241.03 a 546.12 a 1096.55 a 1239.00 8214.86
1941 1464.00 1113.00 b 1080.50 763.00 405.07 a 297.00 124.00 115.50 g 320.00 624.00 949.00 0.00 z 7139.57
1942 1358.50 1285.00 1216.00 698.00 455.70 a 190.34 a 82.00 98.74 d 321.96 b 678.38 a 856.61 b 1171.28 a 8412.52
1943 1246.72 a 960.30 a 986.50 541.55 a 494.40 b 180.56 c 53.50 39.00 f 317.00 696.95 c 1025.50 1468.50 7971.46
1944 1450.50 1178.50 1138.00 875.50 466.50 178.50 100.00 90.50 284.50 602.50 968.00 1314.00 8647.00
1945 1268.50 1031.00 1021.00 896.50 471.00 282.50 94.50 57.00 323.50 613.00 950.00 1313.00 8321.50
1946 1326.00 1095.00 928.50 557.50 581.00 141.00 45.00 103.00 260.00 659.50 1183.00 1162.00 8041.50
1947 1390.50 1051.00 1061.50 761.50 436.50 270.52 a 67.00 108.50 252.50 531.00 1131.50 1272.50 8334.52
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 102.96 c 229.04 d 653.07 a 883.50 f 1180.00 2165.07
1949 1542.00 1110.00 946.50 728.50 473.50 239.48 a 59.00 f 148.91 c 269.42 d 663.18 c 735.00 1187.00 8043.50
1950 1147.50 956.85 b 1019.26 b 452.00 h 525.00 191.50 97.00 i 147.50 h 329.40 e 423.84 b 867.32 b 672.50 l 5460.67
1951 1037.50 h 1031.50 1004.83 b 769.00 487.22 a 312.69 d 38.50 75.50 g 334.20 e 693.62 c 1070.50 1233.05 b 6975.11
1952 1123.75 a 1158.00 1123.48 b 717.93 a 501.68 a 112.76 a 95.21 c 74.00 k 258.00 f 520.50 f 1222.50 1373.62 b 7428.94
1953 1066.92 a 1166.15 a 952.22 a 771.11 c 606.50 155.56 c 86.50 131.00 h 212.00 k 652.11 c 1002.50 1382.60 a 7842.16
1954 1112.38 a 862.00 1103.71 b 594.83 a 331.00 h 199.66 a 68.56 e 80.00 n 265.71 b 515.67 e 856.50 1206.86 b 6785.88
1955 1308.00 1315.46 b 970.09 b 693.50 513.10 b 270.52 a 82.48 c 112.63 a 286.61 b 626.00 937.00 1073.50 8188.89
1956 1156.50 1307.79 c 1002.50 788.50 400.33 b 122.59 a 152.86 b 180.00 263.00 629.30 a 1215.00 1467.50 8685.87
1957 1304.50 862.50 980.50 873.46 d 616.50 276.00 82.50 141.57 a 424.29 b 592.21 b 1313.28 a 1256.00 8723.30
1958 1394.45 c 1012.00 1154.50 855.00 426.52 b 159.31 a 115.14 c 80.00 289.62 d 655.13 a 674.50 g 1058.00 7199.67
1959 1315.00 1101.00 1054.50 784.00 443.00 145.00 78.50 g 105.83 b 359.00 818.50 961.00 1171.00 8257.83
1960 1364.50 1373.00 953.50 627.50 385.50 h 173.50 137.50 85.00 287.00 693.50 871.61 b 1349.50 7916.11
1961 1423.50 1113.26 a 1028.50 784.00 448.00 206.90 a 131.50 111.50 413.50 732.50 1096.50 707.00 o 7489.66
1962 1478.50 973.00 1123.50 653.00 483.08 a 266.50 115.00 101.50 294.00 553.00 913.50 1123.23 a 8077.82
1963 1529.50 973.50 1048.50 652.24 a 415.40 a 161.79 b 32.50 95.38 e 146.00 g 460.35 a 869.50 1380.50 7619.16
1964 1432.50 1450.50 1301.50 754.00 458.00 246.50 26.72 b 132.50 190.00 j 636.00 1049.50 1066.00 g 7487.72
1965 1104.50 802.50 i 910.00 g 693.00 503.50 274.50 63.11 c 180.00 356.50 f 616.00 844.00 1120.00 5398.61
1966 1403.00 1216.50 914.50 a 718.89 c 462.70 d 218.50 6.41 b 101.86 c 230.50 g 621.07 b 826.03 a 1206.23 c 7695.70
1967 622.50 n 1158.89 a 824.00 652.00 535.00 243.00 48.50 206.09 d 342.60 e 593.43 c 874.50 1432.00 6910.01
1968 1393.50 1254.00 1072.82 c 883.97 a 548.00 164.00 89.38 a 161.00 361.15 d 587.50 473.50 q 1228.50 7743.82
1969 1036.95 a 1028.50 1194.50 645.54 b 389.50 294.83 a 36.17 d 45.98 a 267.32 b 807.00 1012.24 a 1217.00 7975.53
1970 1317.50 912.33 d 1154.00 945.00 459.32 a 223.20 e 38.50 45.90 e 296.00 i 831.00 749.50 f 1097.29 b 7024.05
1971 1224.50 a 1126.50 1028.00 615.50 f 548.46 e 209.00 112.50 141.50 443.08 d 694.83 b 986.90 a 1260.87 e 7776.13
1972 1239.43 d 1013.96 a 895.00 655.50 524.70 d 182.00 100.00 143.00 h 205.00 g 646.23 e 1299.00 1400.00 7955.82
1973 1440.00 1229.50 830.00 h 916.55 a 544.88 e 250.56 c 85.00 i 131.00 371.11 c 617.02 e 771.35 d 1252.06 d 7524.02
1974 1389.50 1178.50 781.00 754.50 367.50 85.50 h 91.28 d 177.65 e 396.00 573.00 971.25 b 1476.50 8156.68
1975 1380.50 1226.00 1051.50 787.50 b 538.50 308.50 118.46 c 109.00 f 304.00 h 592.00 1019.00 1127.62 c 8149.59
1976 1221.00 949.00 1024.00 694.29 b 494.85 d 255.00 b 79.10 b 207.00 288.50 g 812.50 1034.00 1318.00 8088.74
1977 1377.50 1093.62 b 1043.15 a 698.50 429.35 a 148.00 59.00 78.05 c 199.00 f 603.39 c 611.50 i 1051.50 6582.06
1978 1213.00 1021.50 892.59 b 624.50 528.07 b 125.50 f 17.64 b 138.43 b 275.50 631.00 924.11 b 1464.00 7730.33
1979 1517.28 d 1128.81 a 1042.50 650.36 b 506.00 226.50 88.72 b 180.50 312.00 605.00 1208.00 1190.83 b 8656.50
1980 1217.50 990.50 1043.00 849.11 b 525.50 137.00 36.00 103.00 306.67 c 737.50 994.50 881.90 b 7822.17
1981 1133.80 d 955.11 a 995.50 473.79 a 471.00 115.86 a 38.15 e 151.42 e 249.00 574.61 c 804.00 1153.50 7115.75
1982 1211.50 1124.50 863.50 711.00 523.50 276.50 99.00 72.16 b 305.00 711.00 939.50 1180.00 8017.16
1983 1230.50 1000.00 1076.50 898.50 626.50 320.00 58.50 83.00 250.50 651.50 1005.50 1387.77 a 8588.77
1984 1528.50 1228.50 1119.50 875.00 353.50 244.00 35.00 127.00 302.50 792.50 934.00 1079.50 8619.50
1985 1445.00 1171.69 b 962.00 673.00 453.50 199.29 b 112.50 126.00 393.00 660.00 907.20 e 1374.00 8477.18
1986 1144.00 970.50 874.00 675.52 a 500.50 224.00 109.50 121.00 331.50 713.50 1003.50 1472.00 8139.52
1987 1461.50 1192.50 1171.50 747.50 502.00 189.50 101.00 150.50 409.50 628.00 1072.00 1316.50 8942.00
1988 1457.00 1203.00 1061.50 687.41 a 517.50 130.00 88.50 82.50 372.50 593.00 961.00 1331.00 8484.91
1989 1323.50 1216.96 a 820.00 633.00 405.50 250.50 89.00 129.00 g 311.00 676.00 910.00 1434.00 8069.46
1990 1306.50 1107.50 902.50 686.00 534.50 146.00 135.50 193.00 242.00 648.00 986.00 1346.00 8233.50
1991 1269.50 980.00 958.00 744.00 455.50 240.00 114.50 i 153.00 376.50 651.50 1236.50 1489.50 8554.00
1992 1490.00 1255.00 1024.00 603.50 464.50 308.50 182.50 238.50 343.50 590.00 1289.50 1328.00 9117.50
1993 1241.50 1061.00 957.50 744.00 507.00 245.50 111.50 166.37 a 413.50 759.50 1159.50 1261.00 8627.87
1994 1251.50 1089.00 946.00 738.50 440.00 121.50 133.50 89.00 k 340.50 710.00 1018.50 1182.50 7971.50
1995 1217.00 925.50 978.00 877.00 642.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 869.00 1195.00 6703.50
1996 1282.00 1021.50 1026.50 720.00 324.00 222.00 62.00 139.00 397.00 703.50 926.00 1162.50 7986.00
1997 1316.00 1164.00 929.50 898.00 527.00 230.00 100.50 145.50 240.00 710.00 1170.50 1504.00 8935.00
1998 1312.50 1204.50 1073.50 826.00 432.50 220.50 64.50 137.50 226.50 661.50 858.00 1240.00 8257.50
1999 1073.50 901.00 848.50 847.50 531.00 260.50 65.50 125.00 370.50 662.00 839.50 1290.00 7814.50
2000 1090.00 896.00 993.50 637.50 380.00 199.00 65.00 62.50 282.50 673.50 1176.00 1254.50 7710.00
2001 1399.50 1009.50 972.00 597.00 473.00 186.00 47.00 155.50 309.00 610.50 910.00 1211.00 7880.00
2002 1268.00 1174.50 1034.00 583.00 447.50 88.00 47.00 117.00 295.00 775.00 1009.50 1270.00 8108.50
2003 1064.00 1184.50 1013.50 657.50 419.00 260.00 31.50 101.00 389.00 555.00 937.50 1221.50 7834.00
2004 1363.50 1273.00 791.50 729.50 431.00 255.00 147.00 211.50 340.00 650.50 1059.50 1291.00 8543.00
2005 1079.00 1033.00 1014.50 726.50 453.50 221.00 58.50 174.50 266.50 623.00 884.00 1239.50 7773.50
2006 1217.50 1069.00 948.00 589.00 428.50 158.00 63.00 141.00 0.00 z 694.00 909.50 1291.50 7509.00
2007 1575.00 1100.50 867.50 713.50 479.50 208.50 63.50 57.00 270.50 568.00 919.00 1407.50 8230.00
2008 1449.50 1178.00 1030.00 739.00 518.00 215.50 81.00 138.00 347.50 596.50 893.50 1211.50 8398.00
2009 1211.00 941.00 879.00 733.00 381.50 248.50 91.50 136.00 350.00 784.00 876.50 1404.00 8036.00
2010 1233.00 1281.50 1025.00 672.00 492.00 153.50 60.00 71.50 229.00 603.50 1018.50 1022.50 7862.00
2011 1305.50 1175.50 821.50 675.50 518.00 151.00 10.50 29.00 329.00 684.00 912.50 1450.00 8062.00
2012 1112.50 1174.50 759.00 0.00 z 390.00 109.00 32.50 0.00 z 316.50 611.00 827.00 1289.00 6621.00
2013 1410.00 1191.00 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 2601.00
Period of Record Statistics
MEAN 1292.82 1104.17 988.08 722.91 477.99 206.91 80.13 118.88 308.16 646.49 970.55 1263.44 8148.71
S.D. 140.42 129.30 111.44 93.21 73.30 60.56 45.49 46.42 64.94 75.09 122.98 140.22 425.82
SKEW -0.02 0.38 -0.08 0.25 0.26 0.22 0.67 0.06 0.04 0.10 0.79 0.14 -0.12
MAX 1575.00 1509.00 1301.50 945.00 694.00 377.59 210.00 238.50 470.00 831.00 1313.28 1605.50 9117.50
MIN 1005.43 850.00 747.00 473.79 282.00 64.00 3.50 21.50 138.50 423.84 735.00 881.90 7115.75
NO YRS 102 104 102 100 103 101 100 93 91 101 102 102 57