BURLINGTON, COLORADO

Monthly Total Growing Degree Days

(051121)

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
1903 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 0.00
1904 0.00 18.00 8.50 52.00 216.50 400.18 b 631.00 605.50 433.00 148.50 1.55 a 1.50 2516.23
1905 0.00 a 0.00 d 17.50 56.90 a 170.00 579.00 610.00 729.00 493.97 a 122.00 1.07 b 0.00 a 2779.43
1906 0.00 1.50 1.00 84.81 d 220.50 435.50 592.74 b 649.40 b 446.00 114.50 7.00 5.50 2558.45
1907 0.00 a 2.00 103.16 b 44.46 b 182.00 500.50 766.00 720.50 462.41 a 0.00 z 0.00 z 0.00 z 2781.03
1908 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 293.50 r 695.50 557.50 155.00 e 9.83 a 0.00 1417.83
1909 0.00 0.00 0.00 b 47.50 206.50 499.50 728.00 789.50 0.00 z 174.50 53.00 0.00 2498.50
1910 0.00 2.00 126.77 c 90.50 l 217.00 598.00 824.50 623.50 480.52 a 276.50 26.00 0.00 3174.79
1911 4.50 0.00 30.00 66.00 364.50 709.50 748.00 688.50 565.50 111.00 0.00 0.00 3287.50
1912 0.00 0.00 0.00 46.00 325.50 449.50 702.50 636.50 285.00 112.50 16.03 a 0.00 2573.53
1913 0.50 0.00 10.50 156.21 a 355.47 a 548.50 807.00 853.53 a 364.00 115.50 11.00 0.00 3222.21
1914 0.00 0.00 2.00 104.50 299.00 654.50 752.50 733.00 547.50 173.50 33.00 0.00 3299.50
1915 0.00 0.50 0.00 120.00 214.00 278.00 l 596.50 414.50 f 385.50 202.50 57.50 2.00 1578.50
1916 0.00 0.00 73.88 a 76.00 280.50 528.50 863.00 687.00 399.00 113.50 24.50 2.50 3048.38
1917 0.00 5.00 10.00 40.50 144.50 507.50 812.50 605.50 460.50 121.00 17.50 4.00 2728.50
1918 0.00 6.50 46.50 10.50 341.50 697.50 746.87 d 779.50 299.50 267.50 15.00 0.00 3210.87
1919 0.00 0.00 15.00 94.50 268.00 545.50 802.50 807.79 e 576.50 96.50 5.00 0.00 3211.29
1920 0.50 0.00 22.00 24.50 279.50 537.00 730.00 586.00 451.00 218.00 4.50 0.00 2853.00
1921 0.00 4.50 77.00 148.50 398.57 c 703.00 550.00 k 559.50 g 0.00 z 258.50 67.50 3.00 1660.57
1922 0.00 0.00 11.50 0.00 z 0.00 z 510.00 h 412.00 m 780.96 e 294.00 q 101.50 f 8.50 0.00 a 800.96
1923 0.50 0.00 4.13 a 47.50 206.50 424.50 i 729.50 636.57 b 407.50 77.50 2.50 1.00 2113.20
1924 0.00 7.00 0.00 71.50 135.50 577.50 718.00 766.50 339.50 194.50 18.00 0.00 2828.00
1925 0.00 0.00 36.17 a 130.00 331.50 651.50 820.50 456.00 k 519.00 94.00 7.00 0.00 2589.67
1926 0.00 a 0.00 16.00 87.50 368.50 532.50 732.00 759.50 428.89 c 215.50 5.50 6.50 3152.39
1927 1.50 2.50 1.00 120.00 389.00 467.00 690.00 566.00 500.00 212.50 27.50 0.00 a 2977.00
1928 4.50 0.00 25.00 44.50 285.50 334.00 677.50 659.00 410.50 171.00 5.50 3.00 2620.00
1929 0.00 0.00 10.50 92.00 217.50 491.50 801.50 766.50 331.50 189.50 0.00 4.50 2905.00
1930 0.00 9.50 0.00 z 150.50 242.50 491.79 b 792.00 725.83 b 467.00 143.00 2.00 0.00 3024.11
1931 0.00 0.00 7.00 69.50 216.00 662.00 840.50 676.50 602.50 227.00 44.00 0.00 3345.00
1932 0.00 16.00 5.50 143.50 361.00 573.00 839.14 b 784.00 432.50 146.50 7.76 a 0.00 b 3308.90
1933 0.00 0.00 b 25.50 73.50 261.50 f 759.00 675.50 f 656.68 a 537.00 172.00 9.00 7.50 2240.18
1934 0.00 7.00 35.00 144.11 b 531.65 a 690.00 946.00 818.50 394.50 253.00 35.00 0.00 a 3854.76
1935 0.00 9.50 36.00 79.50 145.50 529.50 870.14 b 800.50 464.50 181.50 0.00 0.00 a 3116.64
1936 0.00 7.00 10.33 a 160.00 421.08 a 693.50 920.50 773.34 c 516.50 74.92 a 0.00 e 0.00 3577.17
1937 0.00 0.00 1.50 89.00 330.15 a 558.50 854.05 a 883.00 545.00 185.00 7.50 b 0.00 3453.70
1938 0.00 4.50 29.00 147.00 268.00 564.00 755.00 828.00 528.33 c 322.00 9.50 0.00 3455.33
1939 0.00 0.00 35.00 133.00 415.50 592.50 858.50 729.00 598.00 182.50 2.50 39.50 3586.00
1940 0.00 5.50 16.50 106.00 310.00 620.00 835.00 679.93 a 509.00 241.50 10.00 2.50 3335.93
1941 0.00 0.00 13.00 59.00 377.00 510.50 747.62 a 739.00 437.50 158.00 23.79 a 6.50 3071.91
1942 0.00 0.00 3.50 135.50 278.00 529.00 790.50 708.02 c 391.00 198.50 26.67 c 0.00 g 3060.68
1943 6.50 1.50 45.98 a 184.29 b 225.50 557.00 820.50 842.00 440.00 137.00 23.50 0.00 3283.77
1944 0.00 0.00 1.50 11.50 396.00 574.50 732.00 724.50 456.50 186.00 22.50 0.00 3105.00
1945 0.00 1.00 36.00 78.50 270.00 378.50 740.00 728.00 440.00 198.92 a 36.00 0.00 2906.92
1946 0.00 0.00 56.00 239.00 32.00 w 354.50 n 814.50 695.00 465.50 116.50 0.00 1.00 2387.50
1947 0.00 0.00 13.50 43.00 229.00 453.00 782.50 835.00 578.50 199.50 j 0.00 0.00 2934.50
1948 1.00 1.00 0.00 d 186.00 338.50 541.00 742.50 728.50 a 552.93 a 149.83 d 4.80 e 0.00 e 3246.06
1949 0.00 f 0.00 c 2.87 d 135.00 309.48 a 551.50 783.50 672.18 a 417.12 d 104.88 a 26.00 0.00 3002.54
1950 0.50 5.50 13.50 85.34 a 200.50 604.00 637.50 576.50 353.00 265.00 2.50 1.00 2744.84
1951 0.00 b 10.50 5.17 a 51.50 283.65 a 369.50 688.50 668.50 366.50 114.50 0.00 0.00 2558.32
1952 0.00 0.00 5.50 76.00 248.50 772.00 777.50 764.00 494.00 122.00 5.50 0.00 3265.00
1953 5.00 0.00 15.00 75.00 239.50 716.00 775.50 662.00 512.00 206.50 30.00 0.00 3236.50
1954 0.00 14.50 8.50 182.50 264.50 713.50 926.50 778.62 a 604.00 178.54 d 22.50 0.00 3693.65
1955 0.00 0.00 13.50 152.50 357.00 432.86 b 866.00 805.00 499.00 228.50 9.00 8.50 3371.86
1956 0.50 0.00 42.50 51.50 400.50 720.50 687.50 633.50 475.50 214.50 7.76 a 0.00 a 3234.26
1957 0.00 b 1.50 0.00 55.50 178.50 505.00 805.00 686.00 324.50 102.50 0.50 2.50 2661.50
1958 0.00 7.00 0.00 52.00 357.50 532.00 580.00 712.50 496.50 198.40 a 0.00 z 0.00 2935.90
1959 0.00 0.00 6.00 137.00 269.50 647.00 727.50 781.50 413.50 80.50 0.52 a 0.00 3063.02
1960 0.00 0.00 26.00 117.00 263.50 524.00 741.00 778.50 486.00 189.50 20.00 1.00 3146.50
1961 0.00 7.00 15.50 64.50 211.00 581.50 757.00 700.50 244.66 a 118.00 3.00 0.00 2702.66
1962 1.00 20.00 15.00 125.69 a 0.00 z 0.00 z 746.50 758.50 415.00 218.00 0.00 z 1.50 2301.19
1963 0.00 5.50 0.00 z 123.50 432.50 691.50 945.00 777.50 560.00 398.00 7.50 0.00 d 3941.00
1964 0.00 0.00 11.88 a 87.00 360.50 554.50 887.00 682.50 471.72 a 175.00 37.00 11.50 3278.61
1965 0.00 3.50 3.00 149.50 387.50 519.50 781.00 653.50 245.50 236.12 a 27.50 7.50 3014.12
1966 0.00 0.00 58.00 70.00 400.00 570.50 875.00 630.50 431.38 a 179.00 22.50 0.00 3236.88
1967 1.00 9.00 69.50 102.50 262.50 525.52 a 724.37 a 639.00 414.50 204.50 19.00 0.00 2971.38
1968 2.50 0.00 37.00 67.00 185.50 665.50 726.50 644.00 400.00 226.00 6.00 1.00 2961.00
1969 0.00 0.00 9.00 120.50 326.50 462.50 811.88 b 738.50 486.00 78.50 6.50 0.00 3039.88
1970 3.00 7.50 2.00 68.50 395.50 562.50 813.00 825.50 385.50 95.00 8.00 1.00 3167.00
1971 1.50 0.00 34.10 a 87.00 236.50 660.50 673.50 726.00 423.00 181.50 20.00 1.00 3044.60
1972 0.00 a 10.50 52.50 0.00 z 312.58 a 623.00 691.50 631.00 443.50 0.00 z 0.00 0.00 2764.58
1973 0.00 0.00 0.00 z 61.50 262.98 a 582.00 715.07 a 802.00 350.00 245.50 21.72 a 0.00 3040.77
1974 0.00 0.00 63.00 125.00 415.50 598.00 856.50 605.00 344.50 196.50 4.50 0.00 z 3208.50
1975 0.00 0.00 0.00 z 145.50 264.02 a 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 4.13 a 413.65
1976 0.00 12.00 22.50 101.50 270.00 591.50 0.00 z 735.73 a 418.39 b 109.53 a 10.50 1.11 c 2272.77
1977 0.00 a 1.50 14.47 a 176.38 a 272.50 k 0.00 z 830.59 b 723.50 593.04 b 0.00 z 0.00 z 0.00 z 2339.47
1978 0.00 d 0.00 0.00 z 132.78 c 334.28 a 623.50 832.72 b 640.00 508.00 157.14 b 23.00 0.00 g 3251.42
1979 0.00 b 0.00 3.10 a 87.22 c 248.00 576.92 d 787.73 c 639.78 b 405.50 f 181.57 c 0.00 a 7.00 2531.32
1980 0.00 a 4.83 b 0.00 111.50 241.00 687.93 a 900.00 799.50 521.00 198.50 65.50 g 7.75 e 3472.01
1981 0.00 a 7.00 15.00 231.50 234.00 631.50 776.03 a 681.00 530.50 153.00 35.36 b 1.50 3296.39
1982 1.50 10.50 14.00 75.00 250.00 432.50 763.50 763.50 442.50 133.50 3.00 4.00 2893.50
1983 0.00 0.00 9.50 35.00 186.00 474.00 818.50 876.00 514.50 136.00 37.50 0.00 3087.00
1984 0.00 0.00 0.00 8.00 301.00 554.50 780.50 783.50 443.50 116.00 11.00 4.50 3002.50
1985 0.00 1.50 19.50 166.50 363.00 597.00 772.00 716.00 422.50 111.50 15.56 c 0.00 3185.06
1986 14.00 18.50 81.00 129.00 309.00 637.00 827.00 714.50 444.50 130.00 10.00 0.00 3314.50
1987 0.00 2.00 23.50 182.50 362.00 617.00 801.50 665.50 433.00 147.50 26.00 6.00 3266.50
1988 0.00 0.00 a 28.50 110.00 348.50 693.50 787.00 781.00 416.50 164.00 23.50 2.50 3355.00
1989 7.50 7.50 70.50 197.50 0.00 z 0.00 z 0.00 z 683.07 b 196.50 p 171.00 22.00 0.00 k 1159.07
1990 0.00 0.00 11.37 a 111.00 153.00 h 711.50 723.00 716.00 537.50 147.77 a 42.00 j 0.00 2958.13
1991 0.00 1.00 25.04 e 86.00 398.00 421.00 k 758.00 680.50 433.50 189.00 6.92 d 0.00 2577.96
1992 0.00 7.00 8.00 l 148.50 338.50 452.00 652.00 561.00 469.00 195.50 1.00 0.00 2824.50
1993 0.00 0.00 26.00 70.50 274.50 511.50 676.50 645.50 297.00 155.00 0.00 0.50 2657.00
1994 0.00 0.00 41.00 115.50 375.00 695.50 701.50 767.50 501.00 129.50 14.00 0.00 3340.50
1995 0.00 9.50 43.50 40.00 98.50 472.00 722.00 810.50 433.50 133.00 21.00 4.50 2788.00
1996 0.00 7.50 6.50 83.00 366.00 775.50 510.00 k 644.50 356.00 174.50 3.50 5.50 2422.50
1997 5.00 2.50 32.00 68.50 227.85 a 569.50 786.00 667.00 476.00 186.50 0.00 0.00 3020.85
1998 0.00 0.00 42.50 67.76 a 412.82 a 507.50 804.50 690.00 601.00 151.00 31.03 a 3.50 3311.61
1999 0.00 2.07 a 28.42 a 57.50 248.50 516.21 a 841.28 b 523.50 i 357.41 a 169.00 81.43 b 0.00 b 2301.82
2000 0.00 12.50 11.22 b 115.00 369.93 a 393.00 j 840.00 843.50 491.11 c 154.00 0.00 a 0.00 2837.27
2001 0.00 0.00 c 8.50 i 151.03 a 319.50 670.50 936.00 788.29 c 504.50 159.50 46.50 0.00 3575.82
2002 8.00 0.00 3.00 151.00 298.00 768.50 892.50 780.00 444.00 85.00 9.50 0.00 3439.50
2003 1.50 9.50 44.50 169.00 284.50 502.50 923.00 854.50 379.50 260.00 4.00 0.00 3432.50
2004 0.00 4.50 60.00 i 111.00 408.50 524.50 689.50 623.50 511.00 141.50 21.00 4.00 3039.00
2005 4.50 0.00 15.00 117.50 359.50 613.50 882.50 760.50 580.50 191.50 54.00 0.50 3579.50
2006 0.50 5.50 21.00 f 161.50 419.69 e 157.00 w 563.50 k 707.00 197.50 i 27.00 l 32.50 0.00 1326.69
2007 0.00 h 0.00 51.15 a 46.50 l 303.00 383.00 k 559.00 g 788.50 348.50 i 130.00 k 40.00 2.67 b 1185.32
2008 0.00 e 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 42.50 z 377.00 160.00 39.50 2.50 579.00
2009 0.50 3.00 41.00 76.00 288.50 517.00 683.00 643.50 362.50 49.50 28.00 0.00 2692.50
2010 0.00 0.00 24.00 58.00 205.50 612.50 765.00 741.50 513.50 188.00 32.00 0.00 3140.00
2011 0.00 7.50 20.00 69.50 200.00 589.00 860.00 808.00 394.00 180.00 9.83 a 0.00 3137.83
2012 2.50 0.00 134.50 161.50 385.00 744.00 903.00 723.50 481.50 135.00 40.00 7.00 3717.50
2013 0.00 0.00 15.00 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 15.00
Period of Record Statistics
MEAN 0.75 3.22 24.70 101.95 296.27 576.63 778.36 720.98 452.94 168.42 16.96 1.89 3120.97
S.D. 2.05 4.69 26.27 48.29 80.61 96.05 81.19 73.81 79.68 56.00 16.40 4.47 300.04
SKEW 3.87 1.59 1.90 0.41 0.05 0.02 -0.13 0.00 -0.25 0.81 1.30 6.03 -0.08
MAX 14.00 20.00 134.50 239.00 531.65 775.50 946.00 883.00 604.00 398.00 81.43 39.50 3854.76
MIN 0.00 0.00 0.00 8.00 98.50 334.00 580.00 561.00 244.66 49.50 0.00 0.00 2516.23
NO YRS 107 109 99 103 100 95 98 103 101 101 102 104 70