FT LEWIS, COLORADO

Monthly Total Heating Degree Days

(053016)

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
1915 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
1916 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
1917 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 12.50 t 105.50 230.00 406.00 m 771.96 b 1053.43 d 2160.89
1918 1386.70 c 1042.22 a 861.59 b 753.89 c 493.00 59.46 b 55.00 g 83.50 285.00 b 539.00 1032.86 b 1313.37 a 7850.58
1919 1439.50 1348.50 1105.15 a 674.40 e 385.36 b 52.50 h 16.00 g 0.00 z 181.00 g 648.00 f 997.20 e 1267.26 b 7217.37
1920 1087.58 a 0.00 z 0.00 z 0.00 z 276.13 d 162.12 d 0.00 z 109.53 a 281.00 669.50 564.50 l 0.00 z 2585.86
1921 1147.00 981.00 804.00 759.00 463.45 a 178.00 29.50 87.83 a 261.50 516.00 835.34 a 1002.00 7064.63
1922 1386.50 1117.00 1023.50 885.00 443.09 b 109.00 20.15 a 56.32 a 165.54 b 558.50 992.00 1188.00 7944.59
1923 1192.00 1104.92 b 1104.50 715.00 421.60 a 222.93 a 20.50 120.50 391.00 730.00 956.38 a 1218.00 8197.33
1924 1453.50 1000.50 1164.00 736.00 667.00 228.00 f 75.50 123.00 326.00 662.50 879.00 1372.50 8459.50
1925 1455.00 1051.50 942.00 640.34 a 384.00 227.50 61.00 169.00 338.00 670.50 988.00 1205.90 a 8132.74
1926 1434.00 1020.50 432.00 o 686.79 b 479.50 151.00 67.00 36.00 248.50 524.50 897.00 1283.50 6828.29
1927 1067.00 954.50 1026.50 673.50 462.50 229.00 63.50 149.50 332.07 a 599.50 769.50 1354.00 7681.07
1928 1238.50 1116.50 903.50 745.50 431.50 282.00 74.50 138.50 248.50 546.50 965.50 1311.50 8002.50
1929 1367.50 770.00 j 1020.50 790.50 479.50 193.50 24.50 86.50 331.00 589.00 1012.50 1092.50 6987.50
1930 1455.00 967.50 1036.00 549.00 417.00 i 166.50 60.00 85.00 326.00 656.00 1011.50 1312.00 7624.50
1931 1259.00 983.50 1034.00 659.00 506.00 180.00 55.00 70.50 243.50 543.50 1006.00 1320.00 7860.00
1932 1510.50 1003.00 1040.00 685.00 487.50 253.00 40.00 70.50 267.00 656.50 871.00 1402.00 8286.00
1933 1399.00 1379.50 938.50 808.00 637.50 169.50 72.00 179.50 292.00 650.50 905.50 1154.50 8586.00
1934 1165.50 888.00 779.50 608.50 268.50 218.00 9.50 32.50 316.50 506.50 925.00 1186.50 6904.50
1935 1190.50 1000.50 1112.50 724.50 596.50 192.00 63.50 64.50 241.50 629.00 979.50 1206.00 8000.50
1936 1308.50 1149.50 965.00 626.00 379.50 124.00 31.00 61.50 320.50 615.00 901.50 1210.00 7692.00
1937 1608.00 1190.50 1085.00 796.00 384.50 205.00 53.98 b 19.50 209.50 536.50 852.50 1129.50 8070.48
1938 1219.50 1035.00 1022.00 678.00 492.00 179.50 97.13 a 123.50 235.50 586.00 1086.00 1170.00 7924.13
1939 1244.00 1345.00 979.50 643.50 451.50 200.50 51.50 56.50 188.00 628.00 804.50 1011.00 7603.50
1940 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
1941 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
1942 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
1943 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
1944 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
1945 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
1946 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
1947 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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 111.08 a 247.00 629.00 1118.50 1255.50 3361.08
1949 1454.50 1249.50 1039.50 692.00 565.00 316.00 95.00 160.17 a 268.00 709.00 772.00 1306.00 8626.67
1950 1323.50 1000.00 1015.00 701.00 593.59 d 256.61 b 116.00 150.00 380.00 432.50 866.50 1025.00 7859.70
1951 1274.00 1076.50 1044.00 752.50 518.50 351.72 a 68.50 158.00 356.00 679.50 1029.50 1373.50 8682.22
1952 1340.50 1220.00 1202.00 684.50 463.50 214.00 68.00 87.50 271.50 549.50 1116.00 1364.55 c 8581.55
1953 1217.50 1165.00 1004.00 824.50 642.70 c 220.50 55.00 163.00 301.00 649.00 919.50 1411.05 c 8572.75
1954 1243.50 923.50 1092.20 c 638.00 487.00 303.10 a 74.50 177.50 251.50 513.00 822.50 1244.00 7770.30
1955 1390.00 1327.50 1091.50 784.50 562.50 322.24 a 115.00 76.97 b 286.61 b 547.00 993.50 1165.50 8662.81
1956 1053.00 1265.00 980.50 743.79 a 459.83 a 131.00 81.00 171.53 a 205.50 578.67 a 1063.39 b 1252.50 7985.72
1957 1245.17 a 912.00 996.59 d 818.00 593.50 0.00 z 99.00 145.38 b 367.50 666.50 1119.50 1181.50 8144.64
1958 1277.50 1013.50 1206.00 831.21 a 411.00 174.11 b 107.50 62.50 271.50 582.00 908.50 1037.43 b 7882.75
1959 1200.50 1123.50 1038.00 724.00 528.11 c 151.00 53.50 105.50 338.00 640.00 939.00 1128.50 7969.61
1960 1424.50 1351.50 990.50 702.50 534.75 a 157.50 30.00 55.50 173.50 636.00 891.00 1262.00 8209.25
1961 1257.50 1054.00 1026.50 749.50 444.50 111.50 46.00 69.00 414.00 666.00 1014.50 1402.50 8255.50
1962 1361.00 1058.50 1168.50 607.50 509.00 195.50 47.50 76.50 229.00 532.00 810.50 1108.00 7703.50
1963 1531.50 998.00 1011.00 735.00 359.00 234.50 10.50 60.00 159.00 420.50 865.50 1230.50 7615.00
1964 1357.00 1293.50 1172.50 832.00 481.50 235.00 14.50 118.00 301.00 503.00 998.00 1321.50 8627.50
1965 1257.00 1158.50 1154.50 755.50 565.50 313.33 c 29.00 121.86 b 380.00 509.50 809.00 1183.50 8237.20
1966 1410.50 1275.00 926.50 676.50 415.50 204.44 c 11.88 a 66.81 b 247.76 a 574.05 c 818.50 1257.05 a 7884.50
1967 1337.50 1012.00 812.00 556.00 i 513.05 a 284.42 d 13.00 f 95.50 m 258.21 b 346.50 k 647.50 g 1428.58 a 5645.77
1968 1344.62 c 1033.64 a 1009.57 a 835.71 b 547.67 a 200.69 a 55.69 d 200.47 a 326.40 e 556.40 b 987.22 c 1345.40 a 8443.48
1969 1225.00 1152.85 b 1199.50 645.52 a 383.00 303.33 c 25.83 a 38.75 c 251.38 a 773.93 b 976.50 1166.12 a 8141.71
1970 1261.00 909.50 1102.57 a 897.00 456.50 256.03 a 29.45 a 33.07 a 383.28 a 783.50 951.50 1254.00 8317.39
1971 1321.12 a 1065.00 985.00 745.34 a 572.98 a 190.50 36.00 102.00 0.00 z 0.00 z 1024.66 a 1337.65 a 7380.25
1972 1281.50 1000.00 762.08 a 721.00 482.16 c 171.35 d 11.50 m 112.50 318.89 c 579.50 1180.50 1383.50 7992.98
1973 1434.50 1170.00 1125.50 903.50 503.75 a 254.00 89.00 84.00 387.00 485.00 h 946.00 1255.00 8152.25
1974 1437.00 1205.04 a 905.50 788.28 a 382.52 c 110.50 68.41 b 133.50 308.28 a 549.70 c 962.14 b 1293.73 a 8144.59
1975 1434.50 1180.67 a 1074.50 846.21 a 562.13 a 295.00 62.50 125.50 307.76 a 579.18 a 981.67 c 1253.95 a 8703.57
1976 1340.23 a 996.00 1023.52 a 688.45 a 448.95 c 220.00 31.53 b 112.63 a 261.21 a 693.00 931.00 1214.68 a 7961.20
1977 1435.00 1002.30 a 1032.00 615.00 527.50 89.50 18.00 45.00 254.50 526.00 891.72 a 1115.50 7552.02
1978 1275.65 a 1158.00 919.00 684.64 b 560.58 a 194.50 39.50 100.00 261.72 a 501.68 a 916.50 1457.50 8069.28
1979 1523.50 1211.50 1118.50 758.00 506.50 219.00 57.41 d 135.88 a 198.10 a 534.75 c 1142.00 1142.50 8547.64
1980 1257.00 1069.50 1140.00 777.50 557.00 160.00 22.50 111.60 a 259.14 a 624.50 888.10 a 978.50 7845.34
1981 1047.50 963.00 1034.50 584.50 496.00 132.93 a 34.00 83.50 244.50 659.00 862.24 a 0.00 z 6141.67
1982 1367.00 1132.50 1003.00 724.00 534.50 250.00 0.00 z 0.00 z 281.00 501.50 i 1000.50 1294.00 7586.50
1983 1246.00 1076.00 1040.50 911.50 571.00 290.50 62.50 36.00 206.50 585.50 997.00 1293.50 8316.50
1984 1404.00 1181.00 1021.00 815.50 327.50 209.50 11.50 61.50 251.00 809.00 948.50 1171.50 8211.50
1985 1332.00 1176.00 990.00 622.00 469.50 139.50 41.00 51.00 378.00 605.50 1020.00 1260.50 8085.00
1986 1079.00 946.00 807.00 692.50 493.00 173.00 107.00 55.00 391.50 675.00 975.50 1193.00 7587.50
1987 1319.00 1032.00 1084.50 627.00 466.50 147.00 96.50 102.50 298.00 528.00 951.50 1295.50 7948.00
1988 1423.00 1107.00 987.00 671.00 460.00 113.50 28.50 71.00 299.00 484.00 982.50 1248.50 7875.00
1989 1370.00 1079.50 796.00 533.00 412.50 194.50 34.50 98.50 217.50 633.50 910.00 1206.00 7485.50
1990 1324.50 1071.50 898.00 610.00 343.50 k 141.21 a 41.00 112.50 142.00 i 428.50 i 572.00 l 1448.00 5646.71
1991 1417.50 978.00 1056.50 757.50 503.00 244.50 50.00 31.50 258.50 561.00 1034.50 1281.00 8173.50
1992 1355.50 1068.50 922.00 543.00 429.50 248.00 110.50 104.00 292.00 558.00 1134.00 1373.00 8138.00
1993 1205.79 b 1105.00 957.50 702.93 a 406.50 274.00 70.50 80.50 320.00 643.50 1049.50 1238.50 8054.22
1994 1190.50 1122.00 827.50 665.00 426.00 100.00 29.00 12.50 220.00 649.50 1001.50 1107.50 7351.00
1995 1241.50 869.50 859.50 774.50 570.50 258.00 70.50 3.00 229.50 582.59 b 810.50 1125.50 7395.09
1996 1252.00 938.50 925.00 669.00 352.00 83.50 2.00 32.00 304.50 622.50 885.00 1240.00 7306.00
1997 1266.00 1067.00 875.00 751.00 403.00 190.50 25.00 59.00 170.00 370.50 k 917.00 796.50 k 5723.50
1998 1227.50 1125.00 964.50 767.00 284.50 l 292.50 8.50 23.50 117.50 600.00 891.00 1129.00 7146.00
1999 794.50 h 899.04 e 751.15 e 515.50 h 327.00 k 43.50 u 25.66 b 68.64 c 296.54 d 501.34 b 729.23 d 965.50 f 3271.61
2000 910.50 g 966.67 e 971.33 d 427.50 g 239.50 h 81.96 b 11.62 c 17.71 c 176.79 b 593.02 d 892.00 f 1133.71 c 3952.82
2001 1278.23 a 801.00 f 930.00 b 619.20 e 274.50 f 104.00 f 8.50 g 62.60 e 183.00 e 525.81 e 595.50 l 1321.93 c 4920.77
2002 1287.00 1072.00 966.50 593.00 416.00 35.50 0.50 19.00 l 210.50 638.00 888.50 1251.50 7359.00
2003 1017.50 990.00 958.00 512.00 g 368.50 200.00 0.50 33.50 285.00 480.50 1012.50 1250.50 6596.50
2004 1373.50 1245.50 815.76 d 813.50 683.00 268.00 104.00 258.33 a 312.00 632.50 939.50 1158.50 8604.09
2005 1080.50 969.50 961.00 659.00 396.50 245.50 17.50 107.50 254.00 566.00 916.50 1271.50 7445.00
2006 1184.50 987.50 1009.50 621.00 378.50 106.00 30.00 85.00 419.50 677.50 888.50 1212.50 7600.00
2007 1356.00 1013.50 820.50 658.50 449.00 130.50 8.00 26.00 253.50 591.00 824.00 1363.50 7494.00
2008 1515.00 1194.00 1033.00 752.00 524.00 209.50 19.00 64.50 264.00 577.00 844.00 1298.00 8294.00
2009 1240.50 1013.00 867.50 736.50 0.00 z 0.00 z 0.00 z 1.00 z 251.50 724.50 845.00 1429.00 7107.50
2010 1317.50 1157.00 1011.00 678.00 64.00 z 143.00 27.50 57.50 158.00 506.00 1000.50 583.50 l 6056.00
2011 1350.00 1131.00 876.00 669.31 a 532.00 184.50 17.05 a 3.00 190.00 570.50 931.00 1240.00 7694.36
2012 1147.00 1089.00 844.00 421.00 f 358.50 56.50 4.00 13.50 180.00 526.00 1160.00 1711.00 7089.50
2013 1764.00 1642.00 662.00 n 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 3406.00
Period of Record Statistics
MEAN 1312.01 1091.88 990.24 715.21 476.36 196.09 47.64 88.15 273.13 595.48 945.12 1246.35 7997.72
S.D. 130.90 131.81 108.65 84.08 84.30 68.55 31.03 49.41 64.88 76.03 96.38 118.99 415.56
SKEW 0.24 1.15 -0.20 0.19 0.04 -0.06 0.50 0.65 0.13 0.37 0.20 0.44 -0.26
MAX 1764.00 1642.00 1206.00 911.50 683.00 351.72 116.00 258.33 419.50 809.00 1180.50 1711.00 8703.57
MIN 1017.50 869.50 751.15 533.00 268.50 35.50 0.50 3.00 117.50 420.50 729.23 978.50 6904.50
NO YRS 85 84 84 80 78 80 78 83 85 80 83 83 61