IDAHO SPRINGS, COLORADO

Monthly Total Heating Degree Days

(054234)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 197406
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
1893 1002.73 e 1086.50 995.00 867.00 595.72 a 170.17 a 0.00 z 0.00 z 0.00 z 386.00 j 960.60 e 1017.00 6694.72
1894 850.50 j 1224.72 c 1033.16 b 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 2257.88
1895 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
1896 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
1897 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
1898 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
1899 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
1900 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
1901 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
1902 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
1903 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
1904 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
1905 0.00 z 1082.00 849.50 746.00 520.00 132.00 67.50 37.50 215.50 727.47 a 801.00 1150.00 6328.47
1906 1018.00 934.89 a 1059.54 c 659.00 413.00 251.50 158.00 135.50 319.00 637.50 928.00 940.50 7454.42
1907 1073.50 743.00 763.50 740.50 679.00 266.50 76.00 99.20 a 291.50 530.50 878.00 1102.00 7243.20
1908 1117.50 1003.50 836.50 642.50 567.00 246.00 87.50 128.50 226.50 719.50 967.50 1103.00 7645.50
1909 1006.00 1049.00 1039.00 867.00 601.50 196.50 42.50 50.50 314.00 527.00 781.00 1338.50 7812.50
1910 1129.50 1079.00 687.00 627.50 515.50 161.50 48.50 73.50 223.00 529.00 760.00 1044.50 6878.50
1911 1019.50 1159.41 a 812.72 a 687.86 b 403.00 c 141.50 113.00 112.63 a 212.40 e 648.13 d 466.50 q 1270.45 c 6580.59
1912 1095.52 c 1074.67 c 906.00 g 765.00 b 503.00 284.50 120.90 a 90.93 a 451.50 644.80 a 788.00 1225.02 a 7043.84
1913 1253.95 a 1174.96 a 1043.50 695.69 a 423.67 a 208.50 88.00 30.50 392.07 a 729.53 a 785.50 1309.50 8135.37
1914 1022.50 1069.19 a 962.00 730.86 a 453.00 167.59 a 73.00 86.80 a 226.50 579.50 738.00 1316.00 7424.93
1915 1205.90 a 955.00 1107.50 618.50 615.19 b 293.57 b 111.50 191.50 317.68 b 559.11 c 883.97 a 1129.84 c 7989.25
1916 1341.00 941.50 806.52 a 698.00 523.50 0.00 z 49.71 b 154.47 b 330.52 a 709.50 1016.90 a 1346.00 7917.60
1917 1284.50 1016.81 a 1170.25 a 857.00 731.17 b 244.82 b 60.40 b 156.60 b 238.50 624.00 751.00 921.50 8056.56
1918 1296.00 931.00 762.60 a 865.34 a 483.50 91.50 73.00 82.00 319.14 a 540.00 974.50 891.00 h 6418.58
1919 1102.00 1046.50 975.43 b 661.00 435.50 194.50 23.50 33.50 210.00 720.50 944.50 1043.50 7390.43
1920 975.00 1005.50 999.75 a 931.50 465.50 225.50 54.00 180.50 357.00 671.00 1011.50 1178.00 8054.75
1921 1099.50 957.00 789.97 b 828.00 492.00 258.50 136.00 177.00 275.00 524.00 862.50 1018.50 7417.97
1922 1380.50 1155.00 1066.50 839.50 516.00 182.50 150.00 135.00 316.00 684.00 1042.00 1149.50 8616.50
1923 1113.50 1157.00 1170.00 796.50 442.00 i 298.97 a 129.34 b 238.00 418.00 892.50 1019.00 1243.00 8475.81
1924 1304.50 1001.00 1313.00 835.00 662.00 219.50 135.50 88.00 389.50 666.00 898.00 1274.50 8786.50
1925 1274.50 916.50 917.50 667.50 466.50 301.00 160.50 228.50 367.00 816.85 a 994.00 1166.00 8276.35
1926 1279.00 956.00 1123.00 765.50 497.00 283.00 240.50 165.50 353.00 601.50 907.50 1237.50 8409.00
1927 1140.00 1042.00 1098.00 770.00 456.00 300.00 171.53 a 297.08 a 393.00 654.00 785.50 1372.50 8479.62
1928 1094.50 1148.00 994.50 834.50 499.50 336.00 158.00 158.50 309.50 642.50 972.00 1293.00 8440.50
1929 1312.50 1309.50 1052.00 816.00 564.00 230.50 145.00 139.50 423.00 700.50 1148.00 1098.00 8938.50
1930 1528.00 878.50 1162.50 608.50 594.00 212.50 113.50 168.50 337.00 677.00 961.00 1269.50 8510.50
1931 1175.00 1003.00 1108.50 784.50 591.50 177.00 85.50 134.50 217.50 596.00 1035.50 1195.50 8104.00
1932 1389.50 982.00 1170.00 693.00 481.50 265.00 128.50 117.00 329.50 710.50 867.00 1426.00 8559.50
1933 761.50 j 1248.50 956.50 837.00 653.00 160.50 55.50 161.00 244.00 587.00 823.00 912.95 a 6638.95
1934 1134.50 977.50 857.50 668.50 355.50 194.50 54.25 a 132.50 369.00 528.50 890.50 1138.00 7300.75
1935 1081.00 995.50 981.00 764.00 757.00 275.00 127.50 85.00 333.50 713.52 a 1019.00 1179.00 8311.02
1936 1268.00 1188.00 971.00 748.50 482.00 216.50 85.50 135.50 314.00 739.00 985.00 1168.70 a 8301.70
1937 1568.08 a 1102.50 1116.00 794.50 526.00 346.00 158.10 a 88.50 345.00 0.00 z 860.77 d 1055.00 7960.45
1938 1115.50 943.00 860.00 684.50 522.50 188.50 81.50 60.97 a 259.00 515.63 a 1003.45 a 1076.00 7310.55
1939 1135.00 1222.00 941.50 495.00 h 395.00 205.50 22.50 85.50 177.00 553.50 790.50 901.50 6429.50
1940 1295.00 1057.98 a 878.50 702.50 435.00 146.50 62.50 97.00 258.00 510.50 959.50 1001.30 a 7404.28
1941 0.00 z 945.00 1099.97 b 0.00 z 0.00 z 0.00 z 0.00 z 127.32 c 250.50 h 624.65 a 805.00 1098.90 b 4700.83
1942 0.00 z 0.00 z 1070.00 673.50 524.00 254.50 76.00 48.29 e 329.50 621.00 757.76 a 1014.50 5369.05
1943 1081.00 896.50 1008.00 537.00 564.00 223.50 53.00 67.00 300.00 600.00 844.50 1113.50 7288.00
1944 1184.50 1131.50 1075.00 865.00 507.50 235.50 103.50 70.50 287.00 575.00 935.00 1209.50 8179.50
1945 1137.50 983.50 964.50 885.50 498.00 359.50 107.50 125.00 397.50 565.50 874.00 1280.00 8178.00
1946 1215.00 995.50 838.00 513.50 617.50 205.50 65.50 113.50 292.00 696.00 1031.90 a 1046.00 7629.90
1947 1252.50 1070.50 1051.50 787.50 466.00 334.50 102.00 120.00 259.00 540.50 1104.00 1227.00 8315.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 123.00 275.50 699.50 1057.00 1254.00 3409.00
1949 1498.00 1099.50 945.50 634.00 489.50 263.00 124.50 167.50 321.50 686.00 667.00 1173.50 8069.50
1950 1231.50 929.00 970.00 704.50 582.50 250.50 180.00 234.00 392.07 a 426.50 864.50 965.00 7730.07
1951 1324.50 988.00 1085.00 816.50 528.50 396.00 97.00 198.50 371.00 757.00 1019.50 1195.50 8777.00
1952 1202.00 1018.50 1138.00 727.50 489.00 102.50 90.00 105.50 234.50 535.00 1105.50 1183.00 7931.00
1953 939.50 1042.50 889.00 843.50 623.00 199.00 58.50 134.50 230.00 574.00 822.50 1179.03 a 7535.03
1954 1032.00 744.00 1052.00 548.79 a 463.50 194.00 30.50 117.00 280.50 514.00 810.00 1114.00 6900.29
1955 1235.50 1156.00 1038.50 701.50 487.50 308.50 73.50 95.00 330.50 600.00 967.50 1048.00 8042.00
1956 1110.50 1199.00 986.50 0.00 z 0.00 z 0.00 z 46.50 i 142.00 222.00 546.50 961.03 a 1019.00 6186.53
1957 1221.50 845.00 946.50 864.50 582.00 244.00 33.00 75.00 325.00 571.90 b 1032.50 991.50 7732.40
1958 1152.50 849.00 1148.60 b 831.72 a 0.00 z 166.50 125.55 a 69.00 291.72 a 571.95 a 852.50 953.50 7012.55
1959 1124.00 1045.50 1000.00 713.00 508.00 125.50 98.00 101.50 420.00 b 726.50 942.41 a 1053.00 7857.41
1960 1256.50 1320.00 995.50 693.00 539.92 a 217.00 128.65 a 161.64 c 320.50 608.50 840.00 1143.38 a 8224.59
1961 1130.98 a 959.00 995.00 771.00 472.00 237.50 128.50 138.00 498.00 647.00 1051.61 b 1260.00 8288.59
1962 1341.00 1000.50 1137.50 662.00 391.50 f 302.22 c 153.50 147.50 227.50 i 502.64 c 813.00 1003.00 7062.87
1963 1334.50 809.57 e 760.00 f 651.50 414.00 216.00 25.50 146.00 233.50 445.50 789.00 1108.50 6173.57
1964 1238.50 1218.50 1178.50 792.50 470.50 296.50 34.00 153.50 351.50 596.00 914.00 1152.00 8396.00
1965 1079.50 1034.00 1297.00 699.00 525.00 293.50 87.00 195.00 532.50 497.00 757.50 d 1033.50 8030.50
1966 1249.76 d 1167.70 a 891.50 755.00 406.00 243.50 17.00 129.50 272.50 602.00 605.50 g 1112.50 6846.96
1967 1058.50 1012.50 672.00 g 729.00 598.00 360.56 c 82.00 160.00 325.00 604.00 935.50 1302.00 7167.06
1968 1074.00 0.00 z 0.00 z 0.00 z 0.00 z 70.50 k 0.00 z 185.50 351.50 550.00 748.00 g 1167.00 3328.00
1969 981.50 995.50 1187.50 632.68 b 462.00 397.00 72.50 63.00 301.00 868.50 911.50 1099.50 7972.18
1970 1119.00 901.00 1115.50 873.50 459.00 270.50 83.50 101.50 431.00 846.54 e 908.00 1075.00 8184.04
1971 1077.50 1069.00 977.50 771.00 566.00 222.50 154.00 144.00 0.00 z 0.00 z 0.00 z 1219.00 6200.50
1972 1211.00 1074.50 896.50 749.50 529.50 198.50 103.91 d 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4763.41
1973 1176.34 c 1076.88 c 1103.94 d 0.00 z 613.11 d 245.17 a 115.50 q 121.00 0.00 z 0.00 z 704.50 0.00 z 5040.95
1974 1037.00 726.00 714.50 627.00 262.00 146.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 3512.50
Period of Record Statistics
MEAN 1180.89 1030.74 1003.40 740.81 517.54 236.10 95.88 126.73 316.38 624.76 905.73 1140.37 7968.38
S.D. 132.92 125.21 132.51 92.16 86.53 67.12 45.59 51.56 73.08 97.29 107.70 120.05 495.31
SKEW 0.68 -0.09 -0.20 -0.22 0.22 0.25 0.47 0.57 0.52 0.58 0.00 0.08 -0.28
MAX 1568.08 1320.00 1313.00 931.50 757.00 397.00 240.50 297.08 532.50 892.50 1148.00 1426.00 8938.50
MIN 939.50 726.00 687.00 513.50 262.00 91.50 17.00 30.50 177.00 426.50 667.00 901.50 6878.50
NO YRS 66 69 67 65 64 66 64 68 64 65 65 67 47