DURANGO, COLORADO

Monthly Total Growing Degree Days

(052432)

Base Temperature = 40 F

File last updated on Jul 24, 2006
*** Note *** Provisional Data *** After Year/Month 199103
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
1900 0.00 4.50 137.00 139.00 510.50 738.50 827.50 702.00 433.00 221.50 21.50 0.00 3735.00
1901 0.00 0.00 5.50 102.00 279.50 392.59 a 450.00 p 924.50 575.00 361.50 73.00 9.00 2722.59
1902 1.50 1.00 8.00 250.50 308.00 i 800.69 a 818.50 871.00 598.00 316.50 74.00 1.00 3740.69
1903 0.00 0.00 44.00 171.00 395.00 650.50 606.50 i 864.00 527.50 335.50 70.50 0.00 3058.00
1904 0.00 48.50 93.50 257.50 456.00 617.50 812.50 832.00 605.00 226.50 31.00 0.50 3980.50
1905 0.00 0.00 40.50 150.50 332.00 658.00 589.00 h 848.00 575.50 219.00 57.50 0.00 2881.00
1906 0.00 h 0.00 33.50 166.00 410.00 624.00 793.00 762.00 521.50 277.50 79.00 19.00 3685.50
1907 0.00 15.00 85.50 217.00 281.00 530.50 849.00 789.00 538.97 a 330.00 46.00 0.00 3681.97
1908 0.00 1.00 h 65.00 200.50 268.50 573.00 849.50 773.28 d 570.00 a 189.50 j 41.50 0.00 3341.28
1909 0.00 0.00 7.46 d 136.00 308.85 d 708.46 d 897.00 830.50 523.00 275.50 f 61.50 0.00 3472.78
1910 1.00 g 0.00 80.50 j 241.00 482.00 521.50 h 909.00 845.00 669.00 237.00 g 77.68 b 4.00 h 3223.68
1911 11.37 a 0.00 36.50 h 187.78 c 436.38 e 630.50 765.50 773.97 a 325.50 n 209.00 10.34 a 0.00 h 3024.84
1912 0.00 r 0.00 9.00 81.50 386.50 620.17 a 793.50 759.50 417.41 a 200.00 17.00 0.00 3284.59
1913 0.00 0.00 18.50 182.50 470.50 631.50 840.62 a 865.00 488.00 190.00 57.50 0.00 3744.12
1914 0.00 1.12 c 45.98 a 219.00 454.00 636.50 822.00 793.00 615.00 e 262.47 a 78.50 0.00 3927.57
1915 0.00 0.00 25.50 221.00 341.00 a 574.50 782.48 b 772.50 414.00 f 289.50 84.00 7.00 3097.48
1916 0.00 0.50 114.00 210.00 d 374.50 622.00 842.17 a 764.50 414.50 f 154.50 f 42.50 2.00 2972.17
1917 0.00 b 3.00 11.50 113.28 a 228.33 e 666.67 c 900.50 774.50 614.50 320.00 81.50 2.50 3716.27
1918 2.00 7.54 b 75.12 e 141.00 346.00 816.60 e 819.50 776.15 d 546.50 337.50 35.50 0.00 3903.40
1919 0.00 0.00 31.00 227.00 473.50 651.92 d 654.50 g 846.19 d 618.50 124.50 33.50 2.50 3008.61
1920 1.50 5.00 21.00 97.00 412.00 595.50 820.00 716.00 498.50 204.50 8.50 f 0.00 h 3371.00
1921 0.00 25.00 78.50 132.50 385.00 617.00 823.50 758.00 550.50 260.50 f 52.50 7.00 3429.50
1922 0.00 2.00 20.09 d 119.00 398.50 682.50 0.00 z 873.50 641.00 0.00 z 10.50 h 0.00 2736.59
1923 0.00 1.00 21.00 119.50 420.80 d 567.00 877.50 754.50 450.00 198.29 b 7.20 e 2.50 3419.29
1924 0.00 9.00 1.55 a 164.50 437.50 687.50 856.38 c 769.00 549.00 250.50 86.00 0.00 3810.93
1925 0.00 0.00 75.50 h 240.00 512.00 620.00 699.00 f 705.00 504.00 175.50 1.50 0.00 2758.00
1926 0.00 0.00 31.00 b 125.50 296.50 f 584.00 656.50 735.00 524.40 e 209.50 0.00 1.00 2866.90
1927 0.00 f 0.00 26.50 161.50 331.81 d 510.00 703.00 638.08 a 301.50 h 162.75 e 5.00 0.00 2538.65
1928 0.00 0.00 32.79 e 100.00 j 282.00 g 505.00 685.00 642.50 498.00 200.00 0.00 0.00 b 2563.29
1929 0.00 0.00 7.00 69.00 285.00 557.00 939.00 823.00 541.00 324.00 7.50 h 2.50 i 3545.00
1930 0.00 i 5.50 18.50 326.50 342.55 a 706.00 872.00 838.50 550.00 233.00 38.28 a 0.00 3930.83
1931 7.50 0.00 38.00 216.50 395.00 727.50 935.50 844.00 648.00 286.50 i 73.50 0.00 3885.50
1932 0.00 11.50 39.50 180.00 408.00 609.00 895.00 853.53 a 600.50 267.50 33.00 1.00 3898.53
1933 0.00 0.00 52.50 84.50 285.50 695.00 904.50 824.50 662.50 380.00 38.50 2.00 3929.50
1934 0.00 i 3.50 g 140.00 296.90 a 553.00 624.50 898.00 872.50 355.00 h 322.00 53.00 1.50 3761.40
1935 0.00 0.50 15.50 101.00 263.00 617.50 771.50 759.50 492.50 194.50 5.50 0.00 3221.00
1936 0.00 0.00 17.50 184.00 417.00 685.50 785.00 778.00 577.50 270.73 a 40.00 1.00 3756.23
1937 0.00 a 0.00 5.50 124.50 454.50 580.50 813.50 833.00 592.00 260.50 36.50 0.00 3700.50
1938 0.00 3.50 9.50 172.00 303.50 615.00 742.00 814.50 581.50 251.50 1.00 3.50 3497.50
1939 0.00 0.00 70.00 227.50 415.00 600.00 796.50 761.50 600.00 161.00 24.50 5.50 3661.50
1940 0.00 0.00 49.00 153.50 433.00 689.50 875.00 792.00 576.50 288.50 10.00 0.00 3867.00
1941 4.02 d 0.50 25.50 75.50 428.00 526.50 797.50 763.00 457.00 208.00 29.00 0.00 3314.52
1942 0.00 0.00 8.00 185.00 307.50 546.00 803.00 768.00 523.00 189.50 h 27.00 0.00 3167.50
1943 0.00 0.00 47.00 290.50 350.76 d 562.00 826.50 855.00 562.50 232.00 16.00 0.00 3742.26
1944 0.00 a 0.00 3.50 44.50 355.00 505.00 771.00 762.00 530.00 320.00 35.50 0.00 3326.50
1945 0.00 0.00 12.00 100.50 337.50 467.00 831.00 849.18 c 520.00 309.50 18.00 0.00 i 3444.68
1946 0.00 2.50 35.65 a 312.00 318.00 652.00 879.00 803.50 569.50 155.50 13.50 14.50 3755.65
1947 0.00 0.50 51.00 124.50 447.00 524.50 875.50 814.00 632.00 306.00 9.00 0.00 e 3784.00
1948 0.00 8.00 4.65 a 210.00 425.00 573.50 812.41 b 801.00 602.00 268.50 11.00 0.00 3716.06
1949 0.00 0.00 18.50 226.00 366.00 592.50 848.00 757.50 601.50 216.00 62.00 1.50 3689.50
1950 0.00 14.00 27.00 194.50 317.00 590.00 787.50 724.00 476.00 419.00 56.50 1.50 3607.00
1951 0.00 5.00 29.00 173.50 421.50 546.00 902.50 796.00 519.00 214.00 6.00 0.00 3612.50
1952 0.00 0.00 7.50 210.00 413.00 632.00 819.00 847.50 608.50 338.00 34.44 c 0.00 3909.94
1953 0.00 0.00 89.50 163.00 293.00 687.50 876.50 777.50 571.50 257.54 e 75.00 0.00 3791.04
1954 4.50 17.50 26.00 283.50 475.50 641.00 936.50 791.00 576.50 365.00 58.50 0.00 4175.50
1955 0.00 0.50 29.00 117.00 355.50 585.00 777.00 855.50 577.00 332.50 24.00 6.72 a 3659.72
1956 19.50 0.00 48.00 173.00 466.00 724.50 829.00 745.50 624.50 290.00 10.50 0.00 3930.50
1957 2.50 30.50 50.00 130.00 323.00 641.00 835.00 813.00 532.00 261.50 13.00 0.00 3631.50
1958 0.00 b 33.50 5.50 132.50 519.50 686.00 796.50 864.00 578.00 304.00 53.50 4.50 3977.50
1959 0.00 0.50 18.00 207.50 415.50 723.50 659.00 g 805.00 517.50 239.00 22.00 0.00 2948.50
1960 0.00 0.00 90.00 195.50 384.00 695.00 857.00 854.00 664.00 266.00 47.50 3.50 4056.50
1961 0.00 3.50 58.50 161.00 443.00 698.00 844.50 839.00 452.50 252.50 3.50 2.50 3758.50
1962 1.50 13.50 33.00 284.50 392.00 626.00 846.50 812.50 611.00 328.50 80.00 1.00 4030.00
1963 0.00 16.00 71.50 184.50 533.50 597.50 924.50 840.50 669.00 411.50 61.50 0.00 4310.00
1964 0.00 0.00 16.50 120.50 419.00 592.00 914.50 781.50 549.50 346.00 23.50 0.00 3763.00
1965 0.50 1.00 35.50 170.00 360.00 559.50 888.50 776.50 480.50 342.50 91.00 4.50 3710.00
1966 0.00 0.00 100.00 229.00 488.50 650.50 948.50 840.50 600.00 292.00 73.00 1.50 4223.50
1967 0.00 3.50 116.50 128.00 402.00 572.50 920.50 760.00 577.50 293.50 65.00 0.00 3839.00
1968 0.00 4.00 43.50 101.00 362.50 651.00 847.50 685.00 484.50 273.50 21.50 0.00 3474.00
1969 7.50 0.00 a 38.50 215.00 469.50 553.50 888.00 883.50 593.00 158.50 20.50 4.00 3831.50
1970 2.50 3.00 3.00 79.50 420.00 586.50 888.50 883.00 482.50 158.50 20.00 0.00 3527.00
1971 0.00 c 3.50 99.20 a 150.56 c 345.00 646.50 700.00 g 837.60 e 475.50 243.72 b 24.50 0.00 b 2826.08
1972 0.00 e 21.50 155.00 a 203.00 442.50 679.44 c 898.00 642.50 g 551.25 b 284.00 f 1.00 f 0.00 a 2950.69
1973 0.00 b 0.58 d 4.28 b 92.40 e 383.88 a 618.50 404.00 n 803.50 461.25 b 271.00 71.00 0.55 c 2706.95
1974 0.00 c 0.00 h 111.27 c 166.00 521.12 b 720.52 a 626.00 h 728.50 577.20 e 292.71 e 11.11 c 0.00 3128.43
1975 1.00 0.00 b 15.00 62.00 f 335.50 586.50 870.50 790.50 b 555.00 275.50 50.50 i 0.00 3429.50
1976 0.00 6.50 22.73 a 194.00 451.50 652.50 903.00 775.50 570.00 200.50 54.00 0.00 3830.23
1977 0.00 4.50 20.00 269.00 394.00 785.00 919.50 900.11 c 464.50 i 231.50 g 50.50 1.50 3344.11
1978 0.00 0.00 105.00 215.00 353.50 674.00 896.00 780.50 580.50 354.00 63.10 a 0.00 a 4021.60
1979 0.00 0.00 5.50 211.00 411.00 634.14 a 881.50 795.50 364.50 o 377.50 0.50 0.00 3316.64
1980 0.00 0.00 0.00 160.50 317.75 a 721.03 a 921.00 828.00 593.50 271.25 a 85.50 2.50 3901.03
1981 0.00 23.00 11.00 279.00 358.00 730.50 911.00 824.60 a 628.00 243.50 63.50 4.00 4076.10
1982 0.00 4.50 26.50 164.50 386.00 607.00 858.50 883.50 588.50 175.00 11.50 0.00 3705.50
1983 0.00 2.50 36.00 94.50 363.50 604.50 915.00 921.50 638.28 a 291.00 74.00 0.00 3940.78
1984 0.00 0.00 25.00 125.00 566.50 662.50 951.00 860.00 626.00 145.50 21.50 0.00 3983.00
1985 0.00 0.50 27.00 250.50 450.50 736.00 911.00 856.50 476.00 297.00 34.00 0.00 4039.00
1986 2.50 49.00 143.00 189.50 424.50 705.00 807.50 875.00 443.00 219.00 14.00 0.00 3872.00
1987 0.00 3.00 18.00 263.00 421.50 727.00 849.50 802.00 555.50 330.50 38.00 1.50 4009.50
1988 0.00 13.50 44.00 232.50 427.50 755.00 899.50 864.50 553.00 402.50 64.50 1.00 4257.50
1989 0.00 14.50 152.00 343.00 530.00 716.00 961.00 817.00 644.50 272.00 42.00 0.00 4492.00
1990 0.00 7.50 90.50 272.00 409.00 806.00 885.00 796.00 662.50 285.50 48.50 0.00 4262.50
1991 0.00 1.00 9.50 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 10.50
Period of Record Statistics
MEAN 0.81 5.14 42.78 179.84 397.59 635.27 851.63 804.90 559.47 267.68 39.91 1.46 3824.36
S.D. 2.73 9.72 38.98 64.34 71.23 76.37 60.86 55.80 60.55 66.43 26.21 3.07 248.37
SKEW 4.88 2.78 1.27 0.28 0.06 -0.10 -0.68 -0.46 -0.26 0.06 0.19 3.51 0.08
MAX 19.50 49.00 155.00 343.00 566.50 816.60 961.00 924.50 669.00 419.00 91.00 19.00 4492.00
MIN 0.00 0.00 0.00 44.50 228.33 392.59 656.50 638.08 417.41 124.50 0.00 0.00 3221.00
NO YRS 86 89 89 89 88 90 81 90 84 81 86 86 57