JOHN MARTIN DAM, COLORADO

Monthly Total Heating Degree Days

(054388)

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
1941 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 96.00 301.00 644.00 1024.00 2065.00
1942 1176.50 1006.00 780.50 352.50 163.00 30.50 0.00 4.00 104.00 371.00 651.50 1013.50 5653.00
1943 1028.50 701.00 829.00 251.00 269.00 21.00 0.00 0.00 60.00 394.50 721.50 1160.50 5436.00
1944 1127.50 882.50 833.50 580.00 151.50 18.50 4.50 0.00 44.50 301.00 656.00 1026.00 5625.50
1945 1050.00 851.50 578.00 534.50 163.50 42.00 5.00 7.50 134.50 298.50 637.00 1136.50 5438.50
1946 965.50 704.50 500.50 174.00 215.00 39.50 0.00 22.50 61.50 379.50 1047.00 862.00 4971.50
1947 1044.00 943.00 800.00 431.00 182.00 41.50 0.00 0.00 31.50 192.50 865.00 1010.08 a 5540.58
1948 1150.50 1080.00 1001.00 207.50 129.00 11.00 0.00 0.00 25.86 a 285.72 a 814.50 981.00 5686.08
1949 1403.50 906.50 666.00 352.50 84.50 27.50 0.00 0.00 21.50 319.82 a 456.00 955.50 5193.32
1950 1030.23 a 686.00 a 715.50 390.00 146.50 19.82 b 0.00 5.17 a 69.50 137.43 a 758.00 927.50 4885.66
1951 1153.50 777.50 801.50 489.00 129.50 70.00 0.00 5.17 a 60.58 d 338.50 787.50 1030.50 5643.24
1952 913.50 796.50 785.50 371.00 115.50 0.00 0.00 1.50 37.50 329.50 854.00 1030.00 5234.50
1953 769.50 799.00 531.50 468.50 222.50 2.00 0.00 1.00 16.00 243.00 695.00 1085.00 4833.00
1954 1055.50 562.50 774.50 243.50 199.50 0.50 2.50 0.00 12.50 330.00 620.50 924.50 4726.00
1955 1041.50 987.50 633.00 306.50 98.50 24.00 0.00 0.00 70.00 273.50 851.00 1038.00 5323.50
1956 993.00 1026.39 a 629.00 401.00 64.00 0.00 0.00 10.00 25.00 247.00 811.50 979.00 5185.89
1957 1185.00 634.00 680.50 457.00 162.75 a 24.50 0.00 0.00 65.00 289.00 736.00 741.50 4975.25
1958 979.50 761.50 952.00 421.50 55.00 1.03 a 0.00 0.00 27.50 276.00 697.00 900.00 5071.03
1959 1125.50 845.50 647.50 373.00 69.50 4.50 0.00 0.00 97.50 380.00 749.50 886.00 5178.50
1960 1258.50 1255.50 871.50 238.00 109.00 12.50 0.50 0.00 34.50 280.50 644.00 1141.50 5846.00
1961 1066.00 767.00 640.50 409.00 112.50 12.50 0.00 0.00 110.50 307.00 783.00 1098.50 5306.50
1962 1328.50 710.00 743.50 260.00 39.00 19.00 0.00 0.00 35.50 217.00 654.00 887.00 4893.50
1963 1279.00 685.50 579.00 247.50 68.50 4.50 0.00 0.00 6.50 87.50 612.00 1154.00 4724.00
1964 936.00 950.50 762.50 367.00 106.00 16.50 0.00 1.00 75.00 294.00 686.50 948.00 5143.00
1965 830.50 869.50 948.50 231.00 95.50 7.00 0.00 0.00 129.50 219.00 525.00 971.00 4826.50
1966 1294.50 1053.00 549.50 357.00 87.50 6.00 0.00 2.50 15.00 283.50 622.50 1048.50 5319.50
1967 918.50 722.00 468.00 177.00 190.50 8.50 0.00 10.50 26.50 208.50 656.50 1048.00 4434.50
1968 1004.40 a 790.50 621.00 411.00 246.00 8.50 1.50 24.50 55.50 295.50 752.00 1176.00 5386.40
1969 957.50 791.50 1026.50 257.00 97.50 47.00 0.00 0.00 28.50 542.00 695.50 944.50 5387.50
1970 1129.00 745.00 922.00 471.00 118.50 66.50 2.00 0.00 132.00 501.50 724.50 937.50 5749.50
1971 1123.50 834.00 714.50 377.00 192.00 0.00 8.00 0.00 198.50 362.50 723.00 982.00 5515.00
1972 1125.00 807.50 547.50 322.50 156.00 0.00 11.00 7.00 76.00 362.00 1044.50 1331.50 5790.50
1973 1181.00 848.50 679.79 c 563.00 211.00 0.00 z 0.00 z 0.00 z 127.00 291.50 707.14 b 1067.90 b 5676.83
1974 1343.50 785.62 b 551.00 278.00 40.00 10.50 0.00 0.00 86.00 203.00 617.78 c 730.00 j 3915.39
1975 780.50 h 547.00 i 516.00 g 389.00 111.50 23.50 0.00 0.00 86.38 a 268.67 a 478.00 k 858.70 a 1737.75
1976 1037.43 b 614.00 623.50 246.50 150.50 5.00 0.00 0.00 69.00 399.50 583.00 f 948.94 d 4094.38
1977 1242.14 b 695.52 c 655.43 c 271.00 33.00 1.50 0.00 0.00 12.00 240.50 636.50 0.00 z 3787.59
1978 805.50 k 698.00 j 355.00 k 228.46 d 194.50 22.00 0.00 b 4.00 34.00 i 151.50 n 439.00 l 507.50 o 448.96
1979 929.00 j 526.00 j 300.50 m 272.31 d 176.70 a 30.00 0.00 0.00 22.50 170.50 d 524.50 k 499.00 m 672.01
1980 0.00 z 501.50 j 381.50 m 322.00 h 155.00 1.00 0.00 0.00 33.00 e 218.50 k 421.00 n 391.50 n 189.00
1981 533.00 k 487.50 j 351.50 l 125.50 114.50 0.00 0.00 0.00 22.20 e 169.50 k 339.00 k 557.50 m 262.20
1982 655.50 k 661.00 k 617.50 335.50 91.00 k 28.85 d 2.50 j 0.00 z 9.00 u 252.50 k 532.00 j 684.00 j 981.85
1983 713.00 j 584.00 i 72.00 z 21.50 z 172.50 f 61.00 g 0.00 k 0.00 h 54.00 i 205.50 m 463.50 j 1002.00 j 0.00
1984 931.50 j 561.00 i 555.50 i 530.00 c 125.55 a 2.59 a 0.00 a 0.00 b 65.00 i 306.50 j 411.00 l 488.50 o 658.14
1985 899.00 i 514.00 n 387.00 j 200.00 g 80.00 g 18.00 h 0.00 i 1.50 g 60.00 k 273.00 k 455.00 m 767.50 k 0.00
1986 535.50 j 547.00 i 342.50 j 253.93 b 50.00 k 9.50 i 0.00 k 0.50 j 65.50 181.50 j 345.00 o 706.50 j 319.43
1987 589.00 k 462.50 i 469.50 l 237.00 k 47.50 m 7.00 m 0.00 l 12.00 j 31.00 k 222.50 j 422.50 k 755.50 j 0.00
1988 749.50 o 664.00 i 744.50 234.00 m 73.00 m 5.00 k 0.00 k 0.00 59.50 i 200.50 l 430.50 j 649.50 k 744.50
1989 605.50 l 764.00 j 585.50 350.50 151.50 51.50 0.00 2.00 144.50 362.00 694.00 1239.50 3581.00
1990 1121.00 964.50 741.50 366.00 267.00 1.50 10.00 2.00 38.50 407.50 660.50 1259.00 5839.00
1991 1235.00 742.00 692.50 408.50 130.50 3.00 6.00 0.00 z 48.00 j 238.50 i 536.00 l 625.00 l 3217.50
1992 1036.50 753.00 581.50 311.50 125.50 32.78 c 0.00 i 52.50 j 35.50 i 235.00 j 608.50 k 806.00 l 2840.78
1993 697.50 o 632.00 k 680.93 b 406.55 a 92.50 m 13.00 0.00 18.50 164.50 399.90 a 991.55 a 1029.20 a 3704.13
1994 766.50 i 985.00 631.00 222.50 l 69.50 j 0.00 1.50 k 0.00 52.50 i 175.50 m 410.50 m 587.00 j 1616.00
1995 562.00 m 427.50 j 677.35 a 308.50 l 192.50 j 37.50 6.00 0.00 75.00 k 224.50 n 457.50 k 511.00 o 720.85
1996 592.00 n 590.00 j 526.50 l 363.21 b 59.50 j 1.50 j 5.50 i 0.00 i 64.50 k 246.50 j 427.00 l 1000.00 1363.21
1997 1119.50 830.00 582.50 550.00 125.50 7.50 0.00 3.00 54.50 410.00 784.00 1097.50 5564.00
1998 990.50 715.00 774.00 447.50 66.00 43.50 0.00 0.00 16.55 a 281.50 629.00 1093.00 5056.55
1999 944.00 642.50 669.50 427.00 171.50 9.50 0.00 0.00 119.50 371.50 553.00 948.00 4856.00
2000 984.00 750.00 649.00 313.39 b 110.64 b 0.58 d 0.00 0.00 80.50 228.33 e 944.46 b 1161.98 a 5222.88
2001 1161.00 984.50 748.13 a 331.50 173.08 a 9.64 b 0.00 b 1.60 b 61.20 e 369.00 657.00 1011.00 5507.66
2002 1079.00 910.00 852.50 300.50 117.00 6.50 0.00 0.00 57.00 445.00 698.50 984.50 5450.50
2003 914.00 936.00 608.00 289.50 118.50 28.00 0.00 1.50 68.00 206.27 e 532.00 g 929.50 4099.27
2004 997.00 889.00 452.00 357.50 85.50 15.50 16.00 8.00 48.00 272.00 746.00 923.00 4809.50
2005 1014.50 778.50 651.00 371.50 161.50 19.44 c 3.00 1.50 16.50 305.00 608.50 1016.00 4946.94
2006 833.50 807.74 e 643.50 253.50 114.50 0.00 0.00 0.00 112.50 392.00 624.00 1043.00 4824.24
2007 1548.45 a 1156.00 502.00 458.00 92.00 29.44 c 0.00 d 0.00 28.50 304.00 646.50 1123.00 5887.89
2008 1134.00 891.50 684.50 415.50 143.00 9.00 1.00 7.00 48.00 337.00 603.00 1064.50 5338.00
2009 968.00 697.00 626.50 420.00 130.50 18.50 1.00 1.00 93.00 582.00 648.00 1223.50 5409.00
2010 1038.50 955.00 693.50 343.50 189.50 8.00 0.00 0.00 4.00 237.00 709.50 926.00 5104.50
2011 1155.78 a 1006.00 627.00 300.00 174.00 2.50 0.00 0.00 64.50 337.50 651.50 1306.13 a 5624.92
2012 1038.50 a 842.50 414.00 248.50 82.00 0.00 0.00 0.00 b 37.00 376.50 666.00 995.00 4700.00
2013 1073.50 859.50 686.50 41.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 42.50 z 2619.50
Period of Record Statistics
MEAN 1084.25 838.78 686.22 350.87 135.75 16.53 1.28 2.42 62.74 313.08 710.41 1029.60 5256.70
S.D. 145.38 138.63 130.44 99.82 53.70 16.73 3.12 5.13 42.82 91.18 117.27 116.65 360.39
SKEW 0.63 0.58 0.52 0.20 0.36 1.22 2.94 2.89 0.94 0.40 1.05 0.47 -0.13
MAX 1548.45 1255.50 1026.50 580.00 269.00 70.00 16.00 24.50 198.50 582.00 1047.00 1331.50 5887.89
MIN 769.50 562.50 414.00 125.50 33.00 0.00 0.00 0.00 4.00 87.50 456.00 741.50 4434.50
NO YRS 55 56 61 64 61 64 61 63 60 57 53 55 47