STERLING, COLORADO

Monthly Total Growing Degree Days

(057950)

Base Temperature = 50 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201104
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
1895 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
1896 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
1897 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
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 0.00 z 0.00 z 0.00
1900 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
1901 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
1902 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
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 z 0.00
1904 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
1905 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
1906 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
1907 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
1908 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
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 j 0.00 0.00
1910 0.00 0.00 65.50 110.00 169.50 505.50 635.50 640.15 a 431.67 c 159.00 0.50 0.00 2717.32
1911 0.00 a 0.00 11.00 64.50 301.00 588.50 638.50 592.50 426.50 78.50 0.00 0.00 2701.00
1912 0.00 a 0.00 a 0.00 48.50 233.00 391.50 652.50 603.50 211.50 55.50 1.50 0.00 2197.50
1913 0.00 0.00 6.00 89.00 286.75 a 514.00 584.00 623.00 229.50 28.50 0.00 0.00 2360.75
1914 0.00 0.00 12.00 71.50 242.50 533.00 678.00 646.00 402.50 117.00 7.00 0.00 2709.50
1915 0.00 0.00 0.00 105.50 176.00 360.00 583.00 510.50 344.50 119.50 22.00 0.00 2221.00
1916 0.00 0.00 a 48.00 58.45 a 187.50 417.00 770.87 a 780.74 d 265.50 j 59.86 b 8.04 b 0.00 2330.45
1917 0.00 1.50 4.00 89.00 200.50 521.50 831.00 538.00 459.00 122.50 9.00 0.00 2776.00
1918 0.00 1.50 34.00 3.50 377.37 e 676.15 d 665.50 785.50 498.50 349.04 d 0.00 z 0.00 3391.06
1919 0.00 0.00 2.50 86.00 200.50 537.78 c 784.30 a 671.50 454.50 24.00 0.00 0.00 2761.08
1920 0.00 0.00 7.50 6.50 260.50 505.34 a 691.82 a 524.33 b 342.50 141.00 1.20 e 0.00 2480.69
1921 0.00 g 0.00 a 16.02 a 44.00 247.00 571.00 809.00 400.00 g 360.00 136.00 6.00 0.00 2189.02
1922 0.00 0.00 0.00 24.50 210.50 541.00 609.50 698.50 383.00 100.00 0.00 0.00 2567.00
1923 0.00 0.00 0.00 43.50 157.00 466.00 672.50 555.79 c 298.00 46.50 0.00 a 0.00 2239.29
1924 0.00 0.00 0.00 27.50 98.00 408.50 582.00 634.50 246.00 62.50 0.00 0.00 2059.00
1925 0.00 0.00 5.50 70.50 273.50 546.50 709.50 622.50 394.66 a 52.50 0.00 0.00 2675.16
1926 0.00 0.00 3.50 76.50 272.50 472.50 666.50 682.60 e 336.50 98.00 2.00 0.00 2610.60
1927 0.00 3.00 0.00 82.00 304.00 435.00 631.00 505.50 363.00 107.00 4.50 0.00 2435.00
1928 0.00 0.00 20.00 54.00 289.00 301.50 653.00 608.50 304.50 93.00 0.00 0.00 2323.50
1929 0.00 0.00 a 0.00 36.00 200.50 464.00 705.50 718.00 266.50 105.50 0.00 k 0.00 2496.00
1930 0.00 0.00 0.00 169.14 a 192.20 a 541.50 745.00 682.00 386.00 125.00 4.00 0.00 2844.84
1931 0.00 0.00 1.50 202.00 222.00 668.50 789.00 667.00 532.00 171.50 15.00 0.00 3268.50
1932 0.00 0.00 a 1.50 123.50 324.00 527.50 806.50 747.50 402.00 90.00 1.00 0.00 3023.50
1933 0.00 0.00 9.50 57.50 230.50 715.00 807.50 654.50 489.00 139.00 1.00 0.50 3104.00
1934 0.00 0.00 21.00 113.00 471.00 622.00 839.50 751.00 299.00 212.00 10.00 0.00 3338.50
1935 0.00 a 0.00 12.50 46.00 113.50 497.50 828.00 721.00 355.34 a 107.50 0.00 0.00 2681.34
1936 0.00 0.00 0.00 b 95.50 340.50 590.00 836.00 733.50 409.50 59.00 0.00 0.00 a 3064.00
1937 0.00 0.00 0.00 54.50 328.50 444.00 786.50 797.50 451.50 87.50 0.00 b 0.00 2950.00
1938 0.00 0.00 6.50 120.50 219.50 570.50 722.50 776.50 411.00 142.00 2.50 0.00 2971.50
1939 0.00 0.00 16.03 b 86.00 308.00 499.50 771.50 621.00 416.50 69.00 0.00 2.00 2789.53
1940 0.00 0.00 5.00 35.00 262.50 572.50 755.50 614.00 456.50 138.00 0.00 0.00 2839.00
1941 0.00 0.00 0.50 58.00 363.00 459.50 662.50 662.00 324.00 46.00 5.00 0.00 a 2580.50
1942 0.00 0.00 0.00 102.50 196.50 448.00 694.00 634.00 287.59 a 158.50 3.50 0.00 2524.59
1943 0.00 0.00 b 24.28 a 121.00 186.50 464.50 775.50 746.50 307.24 a 52.00 1.00 0.00 2678.52
1944 0.00 0.00 0.00 6.00 338.50 491.50 666.00 679.00 325.34 a 88.00 7.50 0.00 2601.84
1945 0.00 0.00 0.50 43.50 198.50 288.00 677.50 622.50 254.50 104.00 12.41 a 0.00 2201.41
1946 0.00 0.00 30.50 166.50 118.00 513.50 754.50 635.00 349.00 57.50 0.00 0.00 2624.50
1947 0.00 0.00 5.00 38.50 188.50 382.50 711.50 742.50 413.50 196.00 0.00 a 0.00 2678.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 689.00 449.50 64.50 0.00 0.00 1203.00
1949 0.00 0.00 0.00 117.50 289.50 466.50 712.00 652.50 318.00 68.50 5.50 0.00 2630.00
1950 0.00 0.00 1.50 57.50 128.50 530.50 661.50 576.50 331.00 207.00 13.50 0.00 2507.50
1951 0.00 2.50 7.50 48.50 275.00 359.00 598.50 675.00 294.50 104.00 0.00 0.00 2364.50
1952 0.00 0.00 2.00 89.50 240.00 649.50 769.00 684.00 416.00 118.83 a 5.50 0.00 2974.33
1953 0.00 0.00 20.00 62.50 225.00 612.00 783.00 698.00 456.50 200.00 7.00 0.00 3064.00
1954 0.00 4.00 8.00 131.00 251.50 588.00 838.00 702.00 486.50 102.50 1.00 0.00 3112.50
1955 0.00 0.00 6.00 113.00 304.00 414.50 785.50 785.00 432.50 151.50 3.50 0.00 2995.50
1956 0.00 0.00 33.00 49.50 311.50 654.50 690.00 560.50 298.00 104.50 3.50 0.00 2705.00
1957 0.00 0.00 0.00 41.00 194.50 476.00 736.77 a 684.00 278.33 c 103.00 2.50 0.00 2516.10
1958 0.00 2.50 0.00 42.00 382.50 537.00 619.00 705.50 421.50 123.50 0.50 0.00 2834.00
1959 0.00 0.00 0.00 87.00 252.50 659.00 703.50 704.50 339.50 45.00 0.00 0.00 2791.00
1960 0.00 0.00 33.00 125.00 245.50 506.50 701.00 678.50 361.00 104.37 a 1.50 0.00 2756.37
1961 0.00 0.00 9.50 41.50 205.50 527.50 692.00 704.50 242.50 89.00 0.00 0.00 a 2512.00
1962 0.00 9.00 3.10 a 134.00 330.00 484.00 684.50 635.50 323.50 103.00 3.50 0.00 2710.10
1963 0.00 0.00 39.00 101.00 391.00 643.50 833.00 671.00 456.50 217.00 0.00 0.00 3352.00
1964 0.00 0.00 0.00 68.50 337.12 c 456.00 827.50 598.50 336.43 b 96.50 2.00 0.00 2722.55
1965 0.00 0.00 0.00 76.00 255.50 463.00 729.00 578.50 179.48 a 116.50 9.00 0.00 2406.98
1966 0.00 0.00 18.50 38.00 320.50 510.50 819.00 580.50 365.00 77.50 0.00 0.00 2729.50
1967 0.00 0.00 38.00 94.50 189.50 401.00 709.00 642.50 331.00 119.00 3.50 0.00 2528.00
1968 0.00 0.00 17.00 37.00 165.00 608.00 728.00 596.00 311.00 131.00 0.00 0.00 2593.00
1969 0.00 0.00 2.50 140.50 352.50 402.50 776.00 750.00 457.00 44.00 0.00 0.00 2925.00
1970 1.00 0.00 0.00 36.00 368.00 524.50 763.00 772.50 316.00 74.00 1.00 4.00 2860.00
1971 1.00 0.00 13.00 79.50 190.00 617.50 703.00 751.50 312.50 80.00 7.00 0.00 2755.00
1972 0.00 4.50 43.00 75.00 270.00 598.50 646.50 651.00 336.50 100.50 0.00 0.00 2725.50
1973 0.00 0.00 f 0.00 44.00 227.50 566.00 695.00 740.00 290.50 133.50 2.50 0.00 2699.00
1974 0.00 0.00 30.50 86.50 346.50 586.50 843.00 613.00 292.50 146.00 0.00 0.00 2944.50
1975 0.00 0.00 17.00 83.00 207.00 514.00 452.00 n 719.50 335.00 156.00 14.00 0.00 2045.50
1976 0.00 2.50 4.50 87.00 247.50 552.00 829.50 710.50 445.50 107.50 2.00 0.00 2988.50
1977 0.00 0.50 4.50 130.00 396.00 721.00 681.50 f 682.00 c 496.50 106.50 1.50 0.00 2538.50
1978 0.00 0.00 32.00 86.50 266.00 578.00 827.91 b 346.00 n 398.50 57.35 a 1.00 0.00 a 2247.26
1979 0.00 0.00 3.10 a 108.50 227.50 517.80 e 749.54 c 586.86 b 439.50 135.00 0.00 0.00 a 2767.80
1980 0.00 0.00 b 0.00 f 89.50 254.72 a 627.41 a 856.00 693.37 a 382.24 a 85.00 24.64 b 0.00 d 3012.88
1981 0.00 0.00 11.50 147.50 134.33 a 578.40 e 721.78 a 598.62 b 430.50 96.62 a 3.50 1.50 2724.25
1982 0.00 1.50 0.00 45.00 197.50 379.50 722.00 724.00 370.00 61.50 0.00 0.00 2501.00
1983 0.00 0.00 5.00 41.00 166.50 411.00 745.00 846.50 475.00 132.00 28.00 0.00 2850.00
1984 0.00 0.00 3.00 2.50 279.50 489.50 762.00 780.50 367.50 100.50 2.00 0.52 a 2787.52
1985 0.00 a 0.00 30.00 0.00 z 365.00 494.00 767.50 687.00 380.00 49.50 2.50 0.00 2775.50
1986 0.00 9.50 43.00 84.00 202.00 634.50 767.00 685.50 374.00 83.50 0.00 0.00 2883.00
1987 0.00 0.00 0.00 174.00 377.00 638.50 804.00 704.45 b 401.50 135.50 10.00 0.00 3244.95
1988 0.00 0.00 21.00 76.00 351.50 750.50 800.50 820.00 399.00 148.00 28.50 0.00 3395.00
1989 0.00 0.00 67.50 158.00 373.00 513.00 860.52 b 712.00 416.50 146.50 15.00 0.00 3262.02
1990 0.00 0.00 a 4.50 111.50 246.00 741.50 723.00 695.50 540.00 131.00 22.50 0.00 3215.50
1991 0.00 0.00 10.50 70.50 379.50 649.50 790.00 745.50 452.00 169.00 4.50 0.00 3271.00
1992 0.00 0.50 11.50 141.00 381.00 512.50 664.50 619.50 448.50 158.00 0.00 0.00 2937.00
1993 0.00 0.00 33.50 68.00 328.00 524.00 705.00 683.50 303.00 136.50 0.00 0.00 2781.50
1994 0.00 0.00 32.50 147.00 440.00 718.50 763.50 826.00 505.00 123.50 8.00 0.00 3564.00
1995 0.00 2.50 46.00 35.50 118.50 503.50 790.50 869.50 446.00 112.50 3.00 0.00 z 2927.50
1996 0.00 5.50 5.50 89.00 275.00 615.00 736.00 693.88 a 364.00 164.00 2.00 0.00 2949.88
1997 0.50 0.00 29.00 77.00 257.50 595.50 783.50 680.50 474.50 174.00 1.00 0.00 3073.00
1998 0.00 0.00 33.14 b 64.50 375.50 444.00 796.50 718.00 594.00 90.50 4.50 0.00 3120.64
1999 0.00 0.00 19.63 a 62.50 273.50 550.00 818.00 714.00 340.00 120.50 40.00 0.00 2938.13
2000 0.00 0.00 3.00 120.50 359.50 573.00 887.00 821.00 452.00 160.00 0.00 0.00 3376.00
2001 0.00 0.00 4.50 103.97 a 312.50 617.00 883.00 780.00 486.00 122.93 b 17.00 0.00 3326.90
2002 0.00 0.00 0.50 142.00 281.00 746.00 905.00 730.50 452.00 67.00 0.00 0.00 3324.00
2003 0.00 8.00 46.00 167.50 383.00 592.50 1019.00 868.50 376.00 144.00 0.00 z 0.00 z 3604.50
2004 0.00 t 0.00 72.50 146.00 387.00 496.00 728.00 606.50 465.50 129.50 12.50 0.00 3043.50
2005 2.00 0.00 14.00 0.00 z 282.00 551.40 e 840.00 695.00 369.50 l 146.00 36.50 0.00 2566.90
2006 1.50 2.92 d 17.50 175.00 388.50 719.00 885.50 742.50 264.00 137.00 20.50 0.00 3353.92
2007 0.00 b 0.00 59.93 a 82.00 376.50 592.50 864.50 841.00 482.50 163.00 34.50 0.00 3496.43
2008 0.00 0.00 13.00 68.00 287.50 562.50 853.00 693.00 389.00 123.00 37.00 0.00 3026.00
2009 0.00 1.50 54.52 b 82.50 324.00 517.76 a 726.36 b 675.50 387.50 39.00 10.00 f 0.00 2808.64
2010 0.00 0.00 19.50 0.00 z 187.50 t 637.50 824.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1481.00
2011 0.00 z 0.00 z 0.00 z 10.50 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 0.00
Period of Record Statistics
MEAN 0.06 0.64 14.83 83.63 271.10 537.53 749.26 685.29 381.51 113.34 5.97 0.09 2818.71
S.D. 0.29 1.79 17.56 42.72 80.37 96.79 81.20 77.77 78.92 48.35 9.26 0.47 327.49
SKEW 5.12 3.45 1.39 0.46 0.05 0.00 0.18 0.08 -0.04 1.20 2.09 6.72 0.11
MAX 2.00 9.50 72.50 202.00 471.00 750.50 1019.00 869.50 594.00 349.04 40.00 4.00 3564.00
MIN 0.00 0.00 0.00 2.50 98.00 288.00 582.00 505.50 179.48 24.00 0.00 0.00 2059.00
NO YRS 98 99 99 97 99 100 98 98 98 100 96 99 84