JOHN MARTIN DAM, COLORADO

Monthly Total Growing Degree Days

(054388)

Base Temperature = 50 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 779.50 501.50 199.50 25.00 1.00 1506.50
1942 0.00 0.00 5.00 140.50 349.00 563.50 809.00 737.00 427.50 163.50 30.00 0.00 3225.00
1943 3.50 3.50 46.50 210.00 273.00 692.00 896.50 907.00 478.00 118.00 3.00 0.00 3631.00
1944 0.00 0.00 8.00 22.50 391.00 660.00 769.50 810.00 528.00 180.50 40.00 0.00 3409.50
1945 0.00 3.00 36.00 106.00 358.00 500.00 849.00 800.00 484.00 212.50 29.50 0.00 3378.00
1946 1.00 8.00 98.50 298.00 282.50 698.00 871.50 769.50 523.00 158.50 0.00 0.00 3708.50
1947 0.00 0.00 28.50 99.00 316.50 575.50 860.00 893.50 639.00 348.00 0.00 0.00 a 3760.00
1948 0.50 0.50 27.00 273.50 428.00 653.00 852.50 817.00 643.97 a 199.95 a 8.50 2.50 3906.92
1949 0.00 0.00 14.50 204.00 449.50 637.50 876.00 785.00 547.50 207.18 a 52.00 0.00 3773.18
1950 0.00 a 1.56 a 29.50 127.00 367.00 740.36 b 739.00 703.18 a 468.50 348.23 a 10.00 0.00 3534.33
1951 1.00 12.50 6.50 90.00 403.00 498.00 911.50 842.68 a 502.50 d 218.00 7.00 3.50 3496.18
1952 1.50 0.00 10.50 136.00 409.00 933.50 945.00 876.00 579.00 174.00 9.50 0.00 4074.00
1953 1.00 4.50 46.00 101.50 372.50 841.50 988.00 841.50 616.50 263.50 12.50 0.00 4089.00
1954 0.00 18.00 21.00 237.00 378.00 839.00 989.50 853.50 688.00 230.00 7.50 0.00 4261.50
1955 0.00 0.00 36.50 193.50 446.50 635.00 982.00 846.50 571.00 240.00 3.50 13.00 3967.50
1956 0.00 0.00 a 67.50 125.50 529.50 851.00 845.50 776.50 595.00 250.00 4.00 0.00 4044.50
1957 0.00 7.50 22.00 109.00 317.23 a 634.50 908.00 847.00 464.50 222.00 9.50 2.50 3543.73
1958 0.00 9.00 0.00 119.50 542.00 761.38 a 811.50 865.50 624.50 246.50 29.00 0.00 4008.88
1959 0.00 0.00 18.00 197.00 480.50 768.50 825.50 854.50 508.00 147.00 9.50 0.00 3808.50
1960 0.00 0.00 55.50 268.00 397.50 700.00 810.50 870.00 560.50 219.00 17.00 0.00 3898.00
1961 0.00 5.00 29.50 149.00 434.00 662.50 800.50 797.50 421.00 179.50 6.50 0.00 3485.00
1962 0.00 33.50 22.50 226.50 562.00 637.50 838.50 848.50 525.00 259.00 10.00 0.00 3963.00
1963 0.00 14.00 95.00 233.00 539.50 795.50 985.50 842.00 670.00 424.00 11.00 0.00 4609.50
1964 0.00 0.00 8.50 160.50 479.50 688.00 983.50 822.00 543.00 187.50 28.50 11.50 3912.50
1965 9.00 3.50 8.50 238.00 470.50 633.50 892.50 735.00 435.50 251.00 35.50 3.00 3715.50
1966 0.00 0.00 58.50 143.50 472.50 745.00 1007.00 757.00 545.50 227.50 15.50 0.00 3972.00
1967 4.00 6.00 112.50 300.50 380.00 652.50 865.50 760.00 527.50 319.00 16.50 0.00 3944.00
1968 0.00 a 0.00 35.50 107.00 249.50 721.50 817.00 725.50 472.50 216.50 11.00 0.00 3356.00
1969 1.50 0.00 5.00 205.00 438.50 545.00 896.00 858.00 534.00 100.50 6.00 0.00 3589.50
1970 1.00 10.50 0.50 87.00 472.50 619.00 862.50 870.50 451.00 107.50 5.00 0.00 3487.00
1971 0.50 0.00 45.00 136.00 304.50 751.00 777.00 754.50 410.50 178.50 6.50 0.00 3364.00
1972 0.00 7.00 77.50 188.00 374.00 726.50 813.00 767.50 485.00 207.50 0.00 0.00 3646.00
1973 0.00 0.00 12.18 c 86.50 308.50 0.00 z 0.00 z 0.00 z 388.00 208.00 23.04 b 3.74 b 1029.96
1974 0.00 0.00 b 89.00 241.00 561.00 739.00 990.50 749.50 455.00 281.50 13.89 c 0.00 j 4120.39
1975 0.00 h 0.50 i 39.00 g 169.50 407.50 660.00 868.50 869.50 526.55 a 264.02 a 14.00 k 1.03 a 3766.60
1976 0.00 b 22.00 68.50 213.00 376.50 687.50 902.00 810.50 552.50 159.50 5.50 f 0.00 d 3792.00
1977 0.00 b 8.40 c 32.66 c 226.50 496.00 757.50 968.00 844.50 668.00 244.00 18.50 0.00 z 4264.06
1978 0.00 k 0.00 j 61.00 k 250.38 d 403.50 722.00 978.64 b 788.50 414.00 i 122.50 n 20.00 l 1.00 o 3143.02
1979 0.00 j 8.00 j 27.00 m 241.15 d 370.97 a 695.00 927.50 810.50 638.50 344.44 d 0.00 k 3.50 m 4028.06
1980 0.00 z 1.50 j 4.00 m 103.50 h 345.00 804.00 1027.00 953.00 607.80 e 144.50 k 23.50 n 5.00 n 3736.80
1981 0.00 k 17.00 j 36.50 l 363.00 419.00 843.00 922.50 788.00 597.00 e 142.00 k 36.50 k 0.00 m 3932.50
1982 10.00 k 1.00 k 23.00 164.00 243.50 k 550.96 d 573.50 j 81.50 z 170.00 u 94.00 k 0.00 j 0.00 j 737.96
1983 0.00 j 0.00 i 9.00 z 39.50 z 237.50 f 398.00 g 594.00 k 702.50 h 390.50 i 93.50 m 32.50 j 0.00 j 0.00
1984 0.00 j 2.00 i 3.50 i 52.78 c 416.43 a 688.97 a 884.02 a 828.45 b 383.50 i 96.00 j 8.50 l 0.00 o 2870.64
1985 0.00 i 1.50 n 28.50 j 182.50 g 338.00 g 444.50 h 603.50 i 625.50 g 371.50 k 81.00 k 1.00 m 0.00 k 0.00
1986 7.50 j 25.50 i 58.00 j 244.29 b 289.00 k 486.50 i 568.00 k 517.00 j 476.00 137.00 j 1.50 o 0.00 j 720.29
1987 0.00 k 0.00 i 7.00 l 111.00 k 262.50 m 406.50 m 561.50 l 524.00 j 306.50 k 114.50 j 34.00 k 0.00 j 0.00
1988 0.00 o 0.00 i 25.00 63.00 m 245.50 m 493.50 k 566.00 k 868.00 325.50 i 115.00 l 30.50 j 0.00 k 893.00
1989 0.00 l 0.00 j 113.00 198.00 419.00 552.00 854.50 753.50 437.50 199.50 16.00 0.00 3543.00
1990 0.00 0.00 23.50 151.50 289.50 730.00 771.50 722.00 583.00 146.00 36.50 0.00 3453.50
1991 0.00 0.00 35.00 89.50 417.50 721.50 790.00 0.00 z 330.00 j 191.50 i 0.00 l 0.00 l 2053.50
1992 0.00 0.00 20.50 174.50 427.50 547.22 c 561.00 i 345.50 j 368.50 i 128.00 j 0.00 k 0.00 l 1169.72
1993 0.00 o 0.00 k 28.33 b 118.45 a 200.00 m 654.00 806.00 723.00 322.50 157.58 a 0.00 a 0.00 a 2809.86
1994 0.00 i 0.00 48.50 115.00 l 304.50 j 754.50 497.00 k 820.50 328.50 i 107.50 m 27.50 m 0.00 j 1623.50
1995 0.00 m 9.00 j 76.47 a 51.00 l 145.50 j 578.50 750.50 881.50 299.50 k 94.00 n 9.00 k 0.00 o 2286.97
1996 0.00 n 7.00 j 7.50 l 156.96 b 321.50 j 476.00 j 529.50 i 502.50 i 280.50 k 118.00 j 12.50 l 3.50 160.46
1997 3.00 11.50 65.50 101.00 384.00 702.00 923.00 782.00 574.50 234.00 3.50 0.00 3784.00
1998 0.00 2.50 56.50 71.00 499.50 632.00 887.00 744.00 661.55 a 212.50 9.50 10.00 3786.05
1999 0.00 2.50 44.50 119.00 337.50 618.50 894.00 807.00 441.00 175.50 55.50 0.00 3495.00
2000 0.00 7.50 21.50 197.14 b 485.31 b 715.96 d 902.50 947.00 597.50 281.98 e 3.21 b 0.00 a 4159.61
2001 0.00 0.00 14.47 a 177.50 363.22 a 673.93 b 1003.22 b 858.91 b 526.20 e 179.50 33.00 0.00 3829.95
2002 0.00 1.00 17.00 211.50 439.00 876.50 978.00 862.50 540.00 137.50 14.00 0.00 4077.00
2003 2.00 5.00 60.50 226.00 435.50 608.50 1010.50 915.50 469.00 302.85 e 10.50 g 0.00 4035.35
2004 0.50 3.00 110.50 170.50 539.00 642.00 768.00 678.50 596.00 216.50 24.50 0.00 3749.00
2005 0.50 0.00 23.50 142.50 405.00 721.11 c 951.00 840.50 666.00 230.50 46.50 0.00 4027.11
2006 2.50 3.04 e 53.00 250.50 491.00 817.00 916.50 811.00 381.00 156.00 20.00 0.00 3901.54
2007 0.00 a 0.00 101.50 138.50 403.50 605.56 c 877.76 d 960.50 634.50 240.50 52.00 1.50 4015.81
2008 0.00 4.00 31.50 117.50 415.50 722.50 952.00 795.00 519.00 193.50 43.50 0.00 3794.00
2009 2.50 5.50 65.00 137.50 394.00 667.50 880.00 771.00 450.50 90.00 32.50 0.00 3496.00
2010 0.00 0.00 22.00 156.50 369.50 824.00 891.50 861.50 663.00 260.50 10.00 0.00 4058.50
2011 0.00 a 3.50 35.50 172.00 374.00 782.50 1004.00 964.00 510.00 224.00 8.00 0.00 a 4077.50
2012 0.00 a 0.50 166.00 244.00 481.50 872.50 1035.00 872.81 b 573.00 182.50 35.50 8.00 4471.31
2013 0.00 0.00 34.50 4.00 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 34.50
Period of Record Statistics
MEAN 0.65 4.06 42.53 171.96 412.17 695.74 891.70 820.57 533.77 216.25 18.08 1.18 3802.94
S.D. 1.50 6.34 33.81 66.52 72.72 95.39 77.23 63.79 83.37 64.23 15.00 2.90 297.65
SKEW 3.68 2.51 1.31 0.30 0.07 0.16 0.00 0.15 -0.11 0.69 0.89 2.87 0.31
MAX 9.00 33.50 166.00 363.00 562.00 933.50 1035.00 964.00 688.00 424.00 55.50 13.00 4609.50
MIN 0.00 0.00 0.00 22.50 249.50 498.00 739.00 678.50 322.50 90.00 0.00 0.00 3225.00
NO YRS 55 56 61 64 61 64 61 63 60 57 53 55 47