HOLLY, COLORADO

Monthly Total Heating Degree Days

(054076)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 200903
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 0.00 z 0.00 z 0.00 z 0.00
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 954.50 539.00 n 0.00 z 417.00 100.50 0.00 0.00 0.00 70.00 210.50 668.00 943.50 3364.00
1901 1015.00 1008.50 735.50 382.00 108.50 8.50 0.00 a 0.00 a 30.00 d 224.50 604.14 a 1035.40 a 5152.04
1902 1030.50 806.00 668.50 321.50 60.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2887.00
1903 0.00 z 0.00 z 0.00 z 403.00 174.50 77.00 0.00 a 0.00 83.00 305.50 644.00 982.50 2669.50
1904 1048.50 807.00 570.40 a 410.00 142.00 19.50 0.00 1.50 22.50 277.45 a 632.00 1068.00 4998.85
1905 1164.00 1205.00 527.50 462.50 146.50 0.00 2.50 0.00 11.00 337.50 556.00 987.50 5400.00
1906 852.50 686.00 b 947.00 203.50 72.50 23.28 a 8.50 5.00 17.50 289.00 737.00 799.50 4641.28
1907 902.00 656.50 390.50 328.50 230.50 16.50 0.00 0.00 z 28.50 218.50 766.50 960.50 4498.50
1908 533.50 m 792.00 518.50 337.00 147.00 0.00 1.55 a 0.00 52.00 355.00 722.00 997.50 3922.55
1909 974.50 771.00 731.00 401.50 157.00 4.14 a 0.00 0.00 36.00 316.00 637.00 1279.00 5307.14
1910 1016.00 879.50 361.00 296.50 173.71 b 12.00 0.00 a 10.50 23.50 250.50 610.00 919.00 4552.21
1911 885.00 924.50 531.50 324.00 119.00 0.00 0.00 13.50 11.00 378.00 799.14 a 1231.00 5216.64
1912 1377.50 891.50 957.00 394.00 124.00 28.50 0.00 0.00 123.50 210.50 674.50 987.98 d 5768.98
1913 847.33 a 1180.00 685.00 328.50 72.50 39.00 0.00 a 0.00 114.50 342.03 a 590.00 1140.50 5339.37
1914 905.00 945.54 b 463.00 j 313.50 f 155.00 11.50 0.00 a 0.00 0.00 z 301.00 604.50 1229.50 4152.04
1915 1142.50 756.00 954.28 a 275.36 b 298.50 41.00 3.00 14.43 b 25.86 a 288.30 a 620.69 a 990.97 a 5410.89
1916 1222.43 a 799.00 516.50 440.00 203.00 3.21 b 0.00 1.50 67.24 a 360.24 b 755.89 b 1111.00 5480.02
1917 1092.23 a 827.00 826.87 e 445.71 b 302.25 a 34.00 0.00 2.67 b 25.71 b 435.00 544.50 1055.07 b 5591.02
1918 1280.82 a 729.00 495.50 485.50 79.57 a 2.00 0.00 3.50 0.00 z 0.00 z 0.00 z 0.00 z 3075.88
1919 0.00 z 1103.50 0.00 z 477.00 122.00 95.00 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 1797.50
1920 0.00 z 0.00 z 680.00 551.00 152.50 9.00 0.00 3.62 a 58.00 137.00 l 665.50 h 1149.00 2603.12
1921 1070.50 806.50 0.00 z 0.00 z 0.00 z 4.62 d 0.00 1.50 63.00 325.00 797.00 0.00 z 3068.12
1922 1325.00 972.50 659.00 382.00 63.50 12.22 c 0.00 r 0.00 2.50 277.50 766.50 1190.92 a 5651.64
1923 938.00 1038.00 808.00 208.00 167.00 2.50 0.00 o 0.00 z 51.67 c 455.50 656.50 1038.00 5363.17
1924 1108.50 794.00 1067.00 393.50 258.00 27.00 10.00 0.00 94.00 211.50 613.50 1373.50 5950.50
1925 1261.50 679.50 504.50 256.50 87.50 4.50 4.50 0.00 72.00 594.00 796.00 994.00 5254.50
1926 1009.00 660.00 779.00 488.50 117.00 4.50 0.00 0.00 78.50 257.00 733.00 1170.50 5297.00
1927 1040.50 780.00 704.00 293.00 55.50 29.50 0.00 7.00 96.00 210.00 588.00 1186.00 4989.50
1928 917.00 879.50 614.50 415.00 136.00 47.00 0.00 5.50 58.50 317.00 710.00 1027.00 5127.00
1929 1128.50 1079.50 626.50 296.50 161.50 1.00 0.00 0.00 81.00 301.50 934.00 949.50 5559.50
1930 1438.00 587.50 734.70 a 203.00 163.00 2.31 d 0.00 0.00 50.50 323.50 702.00 1064.50 5269.01
1931 986.50 674.00 824.50 377.00 228.50 0.00 1.00 0.00 10.50 218.50 761.00 974.00 5055.50
1932 1149.50 702.50 855.50 300.00 61.00 5.00 0.00 0.00 65.00 392.50 682.50 1313.00 5526.50
1933 925.00 970.50 532.50 400.00 163.50 0.00 0.00 0.00 5.50 260.50 639.50 780.50 4677.50
1934 887.50 777.00 595.50 301.50 49.00 0.00 a 0.00 7.23 a 63.50 139.50 571.50 917.00 4309.23
1935 849.00 699.50 417.98 a 383.00 230.00 5.00 0.00 3.50 77.00 274.00 711.00 895.50 4545.48
1936 1078.00 1144.00 566.00 323.50 77.00 f 8.00 0.00 1.00 95.00 308.50 676.00 930.50 5130.50
1937 1360.50 832.00 769.00 345.00 70.50 42.50 0.00 0.00 15.00 258.50 731.50 1061.00 5485.50
1938 928.50 794.00 489.50 347.00 134.00 1.50 0.00 0.00 15.00 161.50 754.50 721.00 f 3625.50
1939 912.00 990.50 691.50 353.50 81.00 0.50 0.00 b 3.50 20.00 239.00 730.00 934.00 4955.50
1940 1529.50 826.00 623.00 386.50 134.00 30.50 1.50 4.50 25.00 184.50 775.00 915.00 5435.00
1941 973.00 834.62 b 782.48 b 405.00 81.50 26.50 0.00 0.00 60.00 271.00 651.00 930.00 5015.10
1942 1128.50 944.50 702.50 298.50 146.00 22.76 a 0.00 0.00 96.00 325.00 598.50 991.00 5253.26
1943 969.50 657.50 771.50 231.00 226.50 2.50 0.00 0.00 30.50 349.50 724.00 1084.00 5046.50
1944 1031.50 831.00 776.50 553.00 112.50 10.00 c 0.00 1.50 29.50 265.50 660.00 968.50 5239.50
1945 1055.00 818.50 592.00 440.50 465.52 a 84.50 0.00 z 0.00 119.00 0.00 z 0.00 z 0.00 z 3575.02
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 5.00 f 0.00 0.00 44.00 368.50 864.44 c 1001.50 2278.44
1949 1354.50 976.35 e 692.00 370.00 69.50 23.40 e 0.00 b 0.00 z 0.00 z 286.00 g 493.50 926.38 a 4905.63
1950 1111.00 758.00 700.00 401.00 97.00 7.00 0.00 9.00 56.00 110.00 704.00 844.50 4797.50
1951 1070.50 765.00 726.00 409.00 128.50 42.50 2.00 2.50 48.00 0.00 z 441.50 n 1021.50 4215.50
1952 885.50 763.00 796.00 363.50 106.00 0.00 2.50 0.00 14.50 274.50 775.50 953.50 4934.50
1953 715.50 743.50 444.50 382.00 193.00 1.50 0.00 0.00 14.50 223.50 621.50 1145.50 4485.00
1954 1121.50 533.00 706.50 167.50 172.50 0.50 0.00 0.00 11.00 350.00 559.50 924.50 4546.50
1955 1024.00 953.50 691.00 292.00 78.00 20.00 0.00 0.00 50.50 206.00 702.50 1017.00 5034.50
1956 985.50 980.00 625.00 342.50 50.50 0.00 0.00 11.00 10.50 187.50 765.52 a 903.50 4861.52
1957 1135.50 681.50 664.50 427.00 155.00 d 17.59 a 0.00 0.00 68.50 322.00 754.50 832.50 5058.59
1958 1027.00 822.50 1032.00 492.00 68.50 3.33 c 0.00 0.00 c 37.50 g 330.50 779.50 983.50 5538.83
1959 1205.00 931.50 791.50 443.50 116.00 3.50 0.00 0.50 124.50 439.50 805.50 918.00 5779.00
1960 1206.50 1219.00 937.50 315.00 a 161.00 24.50 7.50 f 8.50 51.50 329.00 680.00 1089.00 6021.50
1961 1044.00 821.00 709.38 a 472.50 184.00 18.00 0.00 b 0.00 a 190.00 412.30 a 872.68 b 1180.50 5904.36
1962 1409.50 791.50 854.29 e 352.50 70.00 40.50 0.00 0.00 92.50 270.00 723.50 911.50 5515.79
1963 1419.00 776.50 662.50 275.00 124.52 a 13.50 0.00 0.00 23.50 134.00 708.00 1292.50 5429.02
1964 1044.50 1024.00 856.38 c 425.00 123.00 33.50 0.00 8.00 108.62 a 331.00 727.00 997.34 b 5678.34
1965 932.50 957.19 a 1016.00 320.50 102.50 18.50 0.00 0.00 175.00 305.50 619.50 1020.00 5467.19
1966 1310.00 1115.00 644.00 475.50 124.50 15.50 0.00 15.00 52.00 455.50 802.00 1211.50 6220.50
1967 1106.00 869.00 530.00 f 306.50 292.00 24.00 5.50 12.00 86.50 327.00 793.00 1131.50 4953.00
1968 1072.00 885.50 688.50 453.00 249.00 10.00 0.00 20.50 54.00 306.00 793.00 1185.00 5716.50
1969 1021.00 813.00 1081.50 302.50 131.50 64.50 0.00 0.00 22.50 541.00 723.00 959.00 5659.50
1970 1139.50 771.00 924.50 453.00 109.50 52.50 6.00 0.00 155.50 529.00 757.76 a 990.50 5888.76
1971 1071.50 898.00 747.50 366.00 169.00 0.00 10.00 3.00 184.50 337.00 711.00 1024.00 5521.50
1972 1141.50 844.00 517.50 303.00 164.00 0.50 14.50 8.00 71.50 315.50 991.50 1289.50 5661.00
1973 1167.00 867.00 700.00 587.07 a 161.00 19.50 1.50 0.00 138.00 299.00 763.00 1045.50 5748.57
1974 1308.50 824.00 635.50 389.00 74.50 15.00 0.50 0.00 143.00 265.50 726.50 1114.00 5496.00
1975 1068.50 972.00 796.00 452.00 143.50 39.50 0.00 0.00 127.00 333.50 807.50 914.50 5654.00
1976 1076.00 731.00 780.50 318.00 200.00 4.00 0.00 5.50 105.50 535.00 828.00 1007.00 5590.50
1977 1247.75 a 794.00 674.50 310.86 a 22.00 0.00 0.00 0.00 20.00 298.50 713.00 912.50 4993.11
1978 1282.00 1178.00 662.50 292.00 226.00 16.00 0.00 3.62 a 80.00 344.00 774.00 1217.50 6075.62
1979 1482.00 917.00 659.50 348.46 d 205.24 b 50.17 a 0.00 22.50 36.00 280.11 c 851.50 923.80 a 5776.28
1980 1220.00 844.50 834.93 a 462.50 219.58 a 1.00 0.00 4.00 80.00 348.50 622.00 f 884.50 4899.52
1981 856.00 872.00 695.95 a 216.50 211.50 8.00 0.00 8.00 57.00 296.00 648.50 1019.50 4888.95
1982 1149.00 1025.00 685.50 339.00 127.00 31.50 0.00 0.00 71.50 292.00 726.50 999.00 5446.00
1983 1107.50 859.50 802.50 540.50 205.00 16.50 0.00 0.00 60.50 257.00 659.50 1440.00 5948.50
1984 1288.50 831.50 767.50 548.50 131.00 0.00 0.00 0.00 105.50 463.00 639.00 914.50 5689.00
1985 1253.00 995.50 589.00 a 254.00 87.00 21.72 a 0.00 0.00 178.50 0.00 z 940.50 0.00 z 4319.22
1986 852.50 838.44 a 508.50 292.76 a 127.00 16.50 0.00 0.50 54.50 493.50 895.50 1125.00 5204.70
1987 1036.50 790.00 0.00 z 407.00 134.00 12.00 10.50 9.50 67.50 416.50 811.00 1187.50 4882.00
1988 1431.00 924.50 747.50 463.00 158.50 5.50 0.00 8.00 70.50 280.50 639.00 938.50 5666.50
1989 922.00 1069.19 a 584.50 311.50 83.00 47.00 0.00 0.00 101.00 296.50 679.00 1187.50 5281.19
1990 1070.00 903.50 662.50 244.50 202.50 6.00 3.50 0.00 27.50 286.00 582.50 1221.50 5210.00
1991 1154.00 673.50 658.00 346.50 75.00 0.00 0.00 0.00 91.00 389.00 892.00 969.50 5248.50
1992 934.00 698.00 535.00 253.50 119.00 18.00 0.00 5.50 37.50 294.00 921.00 1318.50 5134.00
1993 1303.00 1021.50 675.50 390.00 137.50 14.00 0.00 7.50 99.00 410.50 876.00 936.50 5871.00
1994 1053.50 986.00 635.00 434.00 92.50 0.00 0.00 0.00 54.50 291.00 718.50 895.00 5160.00
1995 1026.50 732.00 712.50 528.00 264.50 31.50 2.50 0.00 110.50 371.00 660.00 965.00 5404.00
1996 1143.50 885.00 838.50 370.50 109.00 4.00 10.00 0.00 103.50 334.50 845.50 1075.50 5719.50
1997 1138.00 894.00 645.00 591.50 158.00 10.00 0.00 10.50 59.00 459.50 854.00 1135.50 5955.00
1998 1032.50 746.50 854.50 481.50 90.50 50.00 0.00 0.00 23.00 339.50 675.50 1103.00 5396.50
1999 1011.00 711.00 730.50 456.00 188.50 15.00 0.00 0.00 137.00 391.50 553.00 954.50 5148.00
2000 996.00 749.86 a 694.40 a 392.50 140.50 20.50 0.00 a 0.00 98.00 327.50 915.50 1130.50 5465.26
2001 1170.00 971.00 782.00 310.50 168.00 20.50 0.00 0.00 a 62.00 376.50 626.00 1003.50 5490.00
2002 1096.50 897.00 828.50 301.50 122.50 6.00 0.00 1.50 66.00 484.00 755.00 1004.50 5563.00
2003 986.50 935.50 666.00 334.50 127.00 35.50 0.00 4.50 102.50 259.50 784.50 991.00 5227.00
2004 1038.00 945.50 537.00 383.50 104.50 23.50 18.00 10.50 53.50 312.50 745.50 970.50 5142.50
2005 1021.50 788.00 721.50 432.00 174.50 34.00 1.50 2.00 27.50 316.00 639.00 1057.50 5215.00
2006 870.50 912.50 689.50 299.50 136.50 0.00 0.00 3.50 134.50 394.00 687.00 1102.50 5230.00
2007 1564.50 1180.00 563.50 541.50 114.00 25.00 0.00 0.00 40.00 287.00 723.50 1151.00 6190.00
2008 1156.00 951.50 693.50 476.00 182.50 4.50 3.00 j 0.50 75.00 357.50 638.50 1091.50 5627.00
2009 995.00 736.00 669.50 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 2400.50
Period of Record Statistics
MEAN 1094.87 864.27 700.09 375.72 144.19 17.67 1.20 2.88 67.14 319.24 720.51 1042.17 5344.36
S.D. 166.16 139.35 141.77 89.60 65.96 19.07 3.18 4.67 43.21 89.05 98.81 128.84 401.00
SKEW 0.62 0.46 0.30 0.19 1.43 1.63 3.26 1.96 0.77 0.53 0.33 0.69 -0.23
MAX 1564.50 1219.00 1081.50 591.50 465.52 95.00 18.00 22.50 190.00 594.00 991.50 1440.00 6220.50
MIN 715.50 533.00 361.00 167.50 22.00 0.00 0.00 0.00 2.50 110.00 493.50 780.50 4309.23
NO YRS 103 104 100 104 104 105 101 103 101 99 100 100 82