TRINIDAD, COLORADO

Monthly Total Heating Degree Days

(058429)

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
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 474.50 g 905.00 905.00
1900 799.00 850.00 609.50 588.50 193.50 28.00 0.50 0.00 91.50 296.00 532.50 b 881.00 4870.00
1901 831.00 848.50 728.00 450.00 204.00 33.00 0.00 0.00 56.00 311.50 542.00 879.00 4883.00
1902 985.00 718.00 807.50 358.50 154.50 36.00 3.00 4.00 152.50 392.50 678.50 898.50 5188.50
1903 932.00 1144.50 725.00 448.00 253.50 168.00 6.50 0.00 135.50 374.50 623.00 938.50 5749.00
1904 1069.50 637.00 557.00 379.00 208.00 81.00 2.00 2.50 88.50 406.00 649.50 798.00 4878.00
1905 913.47 a 908.00 534.50 574.00 230.50 4.50 21.00 5.50 53.00 428.50 635.00 1059.50 5367.47
1906 906.50 779.50 884.50 451.00 201.50 39.00 38.75 a 3.00 119.50 495.00 752.00 735.50 5405.75
1907 807.00 630.50 428.50 496.50 413.50 76.67 c 0.00 z 0.00 z 60.50 222.00 0.00 z 0.00 z 3135.17
1908 842.00 0.00 z 523.50 450.52 a 271.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2087.52
1909 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
1910 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
1911 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 183.00 x 786.50 1186.50 1973.00
1912 994.50 1002.00 906.00 549.00 275.00 93.00 7.00 4.50 277.00 417.00 681.00 1060.00 6266.00
1913 1033.00 1035.00 797.00 482.00 168.50 69.50 5.00 0.00 225.00 500.00 619.50 1232.00 6166.50
1914 806.50 871.00 759.50 506.50 220.50 23.50 4.00 9.00 51.50 399.00 630.50 1167.00 5448.50
1915 1114.50 805.50 930.00 466.50 380.00 71.50 28.00 29.50 95.00 382.00 632.00 910.00 5844.50
1916 998.50 742.50 546.00 522.00 240.50 39.50 1.50 12.50 110.00 412.50 777.50 1045.00 5448.00
1917 1047.00 799.00 832.50 567.50 451.00 69.00 0.00 14.00 87.50 416.00 602.50 781.00 5667.00
1918 1231.50 721.00 600.50 587.00 207.00 18.00 0.00 6.50 161.00 333.00 830.50 1049.50 5745.50
1919 1053.00 930.50 766.50 436.00 209.50 108.50 2.00 0.00 76.50 388.50 761.50 906.00 5638.50
1920 851.00 796.00 743.00 634.50 221.00 48.50 0.00 32.00 95.00 360.00 743.50 970.00 5494.50
1921 823.50 777.00 561.50 534.00 198.50 67.00 4.50 5.00 31.50 266.00 557.00 710.50 4536.00
1922 700.00 j 817.00 752.00 482.50 217.50 40.50 2.00 0.00 44.50 291.50 j 717.50 743.00 3816.50
1923 713.00 834.08 b 770.87 a 411.00 197.50 23.00 0.00 16.02 a 125.50 0.00 z 740.50 1067.50 4898.96
1924 1103.50 768.50 944.50 496.00 282.50 22.50 5.50 3.50 119.00 316.50 591.50 1227.50 5881.00
1925 1123.00 716.50 528.00 368.00 154.50 14.50 6.00 3.00 85.50 441.15 e 699.00 1054.00 5193.15
1926 1070.50 646.50 760.50 308.00 j 222.50 11.50 0.00 1.50 83.00 262.50 663.00 973.50 4695.00
1927 847.00 681.50 711.50 432.50 163.78 a 92.50 0.00 0.50 116.00 294.00 494.50 1046.00 4879.78
1928 378.00 o 939.50 634.50 534.00 245.62 e 60.54 b 11.50 1.50 80.00 140.50 v 829.50 793.00 g 3336.65
1929 339.00 t 1072.50 706.50 442.50 232.50 28.00 9.00 7.50 103.50 388.50 980.50 900.50 4871.50
1930 1190.00 571.00 816.50 295.50 275.50 24.00 14.00 2.00 58.00 435.50 751.00 1104.50 5537.50
1931 974.50 750.00 900.00 454.50 303.50 10.00 0.53 b 1.50 30.00 282.00 766.03 a 710.00 g 4472.57
1932 676.50 l 464.50 k 862.32 a 415.00 141.00 51.00 0.00 a 2.00 80.40 e 312.67 b 628.50 1159.92 a 3652.81
1933 871.00 892.89 a 602.00 541.55 a 265.57 a 6.50 0.00 3.50 30.00 245.93 a 589.50 0.00 z 4048.44
1934 851.50 624.00 0.00 z 0.00 z 71.00 14.50 0.00 0.00 g 95.50 218.50 618.50 909.50 3403.00
1935 781.50 772.00 611.45 b 457.50 356.50 20.00 0.00 0.00 105.00 c 315.17 d 567.50 f 902.00 4321.12
1936 992.00 840.50 541.93 d 340.50 142.00 38.50 1.50 4.50 108.00 g 272.50 m 0.00 z 871.50 3772.93
1937 1190.29 b 802.50 865.50 431.00 154.50 95.50 0.00 0.00 53.00 403.52 a 650.50 911.00 5557.31
1938 968.75 a 795.00 702.00 533.50 308.50 18.50 0.55 c 0.00 23.00 299.00 830.00 874.00 5352.80
1939 937.75 c 1024.50 683.50 433.00 166.88 a 7.00 0.50 15.00 52.50 415.83 b 749.50 819.00 5304.96
1940 1171.28 a 925.00 698.00 523.00 226.00 56.00 4.00 7.23 a 62.07 a 298.00 809.50 883.00 5663.09
1941 997.50 728.00 846.76 d 546.00 0.00 z 0.00 z 0.00 3.00 137.00 403.00 673.50 0.00 z 4334.76
1942 0.00 z 0.00 z 0.00 z 432.00 243.50 36.00 10.50 7.00 134.50 434.50 571.00 874.00 2743.00
1943 930.00 665.00 767.50 324.00 262.50 27.00 0.00 0.00 95.00 424.00 721.00 1029.00 5245.00
1944 1037.00 828.50 819.50 643.00 264.00 53.50 4.50 16.00 80.17 a 357.50 705.50 1002.50 5811.67
1945 990.50 803.00 702.50 621.50 214.50 101.50 11.00 12.50 157.50 329.00 636.00 0.00 z 4579.50
1946 1006.50 777.50 673.00 288.00 321.50 28.50 1.50 2.00 78.00 376.50 800.00 790.50 5143.50
1947 1053.50 867.00 817.50 537.00 234.00 61.00 3.50 2.00 59.00 270.50 871.50 974.00 5750.50
1948 1080.00 979.50 951.50 308.00 227.00 35.00 0.50 1.00 44.00 389.00 831.50 864.00 5711.00
1949 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
1950 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
1951 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
1952 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
1953 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
1954 0.00 z 572.50 814.00 265.00 229.50 26.50 3.10 a 3.10 a 35.00 318.50 585.50 872.50 3725.20
1955 970.50 953.50 720.50 491.50 241.00 79.00 0.00 a 4.00 63.00 291.50 742.50 770.00 5327.00
1956 834.00 981.00 699.00 492.00 93.00 0.00 0.00 8.00 17.00 273.50 791.00 866.50 5055.00
1957 974.00 553.00 721.50 576.00 349.27 a 65.50 0.00 7.00 108.50 384.50 862.50 781.50 5383.27
1958 1010.50 739.41 a 941.00 579.00 158.50 4.00 4.00 1.00 64.00 348.00 617.00 818.00 5284.41
1959 1043.50 803.50 749.00 500.50 168.00 38.50 3.50 1.00 107.00 408.00 729.50 886.50 5438.50
1960 1128.50 891.00 g 757.50 379.00 224.00 35.50 11.00 4.00 95.50 417.00 655.00 1000.50 4707.50
1961 991.50 805.50 753.00 493.00 188.00 31.00 12.50 0.00 101.00 h 357.00 806.00 1037.98 a 5475.48
1962 1144.50 712.50 847.50 386.50 153.50 63.00 3.50 1.00 62.50 271.50 638.50 860.50 5145.00
1963 1248.00 756.50 705.00 331.50 139.00 11.00 0.00 a 30.50 36.50 207.50 600.50 1009.50 5075.50
1964 829.00 f 1119.50 878.00 511.00 187.50 46.50 0.00 7.50 117.50 337.00 668.28 a 811.50 4684.28
1965 864.00 895.00 1032.00 417.00 232.50 54.00 4.50 4.00 161.00 339.50 561.50 802.00 5367.00
1966 1106.00 963.00 634.50 458.00 149.50 16.50 0.00 14.50 60.00 376.00 532.50 952.00 5262.50
1967 862.00 783.50 520.00 325.50 303.00 40.50 2.50 34.00 110.00 333.50 651.50 1101.00 5067.00
1968 955.00 804.50 732.50 551.00 278.50 28.00 4.50 22.00 95.00 295.50 740.50 929.00 5436.00
1969 768.50 774.50 1011.50 374.50 200.50 108.50 0.00 0.00 46.00 553.50 711.00 886.00 5434.50
1970 978.00 700.00 861.50 551.50 168.00 81.00 0.00 0.00 145.00 548.50 669.50 799.50 5502.50
1971 877.50 864.50 688.50 485.50 279.50 16.00 14.50 7.50 196.50 469.00 639.50 917.00 5455.50
1972 891.50 704.00 535.00 371.00 239.00 1.50 17.00 16.50 57.50 339.00 924.50 1023.00 5119.50
1973 1042.50 782.50 785.00 684.00 246.00 53.50 8.00 3.00 135.50 299.00 585.00 930.50 5554.50
1974 1043.00 780.50 531.50 427.00 94.00 44.00 1.50 29.00 198.50 341.50 744.50 1091.50 5326.50
1975 984.00 876.50 736.00 493.50 268.00 58.50 1.50 0.00 184.50 304.00 803.00 873.00 5582.50
1976 1006.00 680.00 688.00 411.00 281.50 25.00 0.00 0.00 132.00 493.50 775.00 953.00 5445.00
1977 1046.50 776.50 765.50 447.00 135.00 1.50 0.00 4.00 43.50 328.50 638.00 820.00 5006.00
1978 1133.50 913.50 662.50 369.00 296.50 67.00 0.00 3.00 68.00 297.50 694.50 1088.00 5593.00
1979 1275.00 791.50 696.00 411.00 289.85 a 79.00 0.00 32.50 79.00 291.00 894.50 871.50 5710.85
1980 976.00 780.50 779.00 599.00 298.50 15.50 0.00 0.00 50.50 403.00 712.00 697.50 5311.50
1981 866.50 727.50 711.00 240.00 202.00 17.00 0.00 16.50 64.50 327.00 536.00 856.50 4564.50
1982 921.00 901.00 654.50 470.00 281.00 60.50 2.00 0.00 93.50 405.50 744.00 964.50 5497.50
1983 914.00 826.50 788.50 646.50 347.00 123.50 0.00 0.00 49.00 305.00 704.00 1271.00 5975.00
1984 1091.00 861.00 860.00 587.50 139.00 22.00 0.00 0.00 117.50 524.00 669.00 863.50 5734.50
1985 1165.50 913.50 0.00 z 394.00 188.50 28.00 0.00 0.00 144.50 370.50 737.00 1013.00 4954.50
1986 754.50 761.50 516.67 a 398.50 193.23 a 43.00 1.00 1.00 56.50 442.00 717.50 1044.50 4929.90
1987 1009.50 809.00 777.50 426.50 208.50 4.00 3.00 29.50 99.00 317.00 724.50 1005.00 5413.00
1988 1136.50 818.00 749.50 421.00 245.50 26.00 2.00 3.50 109.50 295.00 657.00 948.00 5411.50
1989 881.00 981.62 b 501.00 353.50 154.00 95.00 0.00 4.00 106.00 356.50 596.00 1067.50 5096.12
1990 897.50 833.50 647.50 373.00 234.00 4.50 10.00 8.00 58.50 323.50 600.00 1093.50 5083.50
1991 1026.00 688.00 656.50 409.00 123.00 21.00 7.00 2.00 86.50 365.50 844.00 966.00 5194.50
1992 948.00 758.50 625.00 312.50 177.00 54.50 1.50 20.50 56.00 319.50 955.00 967.00 5195.00
1993 941.00 886.00 686.00 442.00 232.50 32.50 0.00 23.50 150.00 427.50 835.50 924.00 5580.50
1994 912.50 762.50 635.50 422.50 140.50 0.50 1.00 0.50 90.50 351.00 680.00 804.00 4801.00
1995 839.00 622.00 642.00 525.50 294.50 57.50 11.00 0.00 112.00 297.50 554.50 866.50 4822.00
1996 962.50 708.50 732.00 358.50 61.50 9.00 0.00 0.00 98.00 328.50 597.50 825.63 a 4681.63
1997 964.00 819.00 561.50 629.50 212.50 30.00 0.00 2.00 30.50 364.00 794.50 1033.50 5441.00
1998 851.50 765.50 704.50 492.00 121.00 47.50 1.50 2.50 16.00 331.50 601.50 962.00 4897.00
1999 817.50 563.00 533.00 521.50 249.50 49.50 0.50 3.00 144.50 373.50 526.00 999.50 4781.00
2000 874.00 621.50 667.50 353.50 106.50 11.00 0.00 0.00 63.50 364.50 846.00 921.73 a 4829.73
2001 1035.50 793.00 702.50 338.00 168.50 7.00 0.00 0.00 39.00 281.00 587.00 895.00 4846.50
2002 939.00 770.50 709.50 285.50 127.00 5.00 0.00 0.00 82.50 440.50 685.00 956.50 5001.00
2003 756.00 899.00 668.00 324.50 118.00 45.00 0.00 6.50 69.50 205.50 652.00 836.50 4580.50
2004 906.00 848.00 470.00 462.00 90.00 18.50 8.00 11.00 88.00 303.00 736.50 849.92 a 4790.92
2005 821.50 764.00 742.50 421.50 184.50 22.00 0.00 4.50 21.00 305.00 550.00 899.00 4735.50
2006 756.00 791.50 588.00 224.00 139.00 7.00 0.00 13.50 213.50 447.00 647.00 1018.50 4845.00
2007 1232.50 839.50 594.00 555.00 240.50 46.50 0.00 0.50 28.00 282.00 603.00 1041.00 5462.50
2008 1061.00 841.00 723.50 472.50 265.50 20.00 0.00 28.00 72.50 364.50 623.00 949.50 5421.00
2009 892.50 706.50 600.50 488.00 142.00 58.00 7.00 2.50 146.00 590.50 640.50 1172.00 5446.00
2010 943.50 1017.00 785.00 417.00 231.00 23.50 1.50 0.50 21.50 315.00 739.00 836.00 5330.50
2011 1022.00 981.08 b 556.45 a 417.00 274.00 17.07 a 0.00 0.00 86.00 365.50 684.31 a 1090.68 a 5494.09
2012 822.00 892.00 544.00 0.00 z 180.83 a 13.89 c 0.00 2.00 107.00 418.50 590.00 970.00 4540.22
2013 1017.50 861.00 693.00 20.50 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 2571.50
Period of Record Statistics
MEAN 970.21 809.97 710.50 454.26 216.92 40.40 3.48 6.50 91.06 358.46 692.00 944.54 5305.94
S.D. 123.53 117.74 123.79 96.30 71.54 30.91 6.07 8.88 48.49 74.74 101.56 119.09 365.80
SKEW 0.26 0.29 0.16 0.00 0.43 1.21 3.10 1.72 1.03 0.58 0.49 0.42 0.00
MAX 1275.00 1144.50 1032.00 684.00 451.00 168.00 38.75 34.00 277.00 590.50 980.50 1271.00 6266.00
MIN 713.00 553.00 428.50 224.00 61.50 0.00 0.00 0.00 16.00 205.50 494.50 697.50 4536.00
NO YRS 99 102 103 102 104 103 103 102 102 100 102 100 83