DELTA, COLORADO

Monthly Total Growing Degree Days

(052192)

Base Temperature = 50 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 199912
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
1893 0.00 0.00 b 14.00 77.00 247.00 533.50 769.50 652.00 327.50 56.00 0.00 a 0.00 2676.50
1894 0.00 0.00 a 23.50 109.00 386.00 497.00 798.50 522.00 i 304.00 66.00 0.00 a 0.00 2184.00
1895 0.00 0.00 20.00 124.00 321.00 461.50 713.52 a 744.50 493.45 a 167.73 c 0.00 0.00 a 3045.70
1896 0.00 0.00 b 36.00 133.39 b 339.00 h 456.00 j 0.00 z 205.00 q 191.25 b 0.00 z 0.00 z 0.00 360.64
1897 0.00 0.00 1.00 123.50 397.50 573.50 733.00 724.00 502.50 116.00 0.00 0.00 b 3171.00
1898 0.00 a 0.00 0.00 148.97 a 252.00 614.00 850.00 751.00 352.00 68.00 10.00 0.00 3045.97
1899 0.00 0.00 35.00 83.00 249.50 301.00 k 747.00 636.00 458.00 86.00 9.00 0.00 a 2303.50
1900 0.00 0.00 22.00 79.00 383.00 636.50 800.00 675.50 343.00 111.00 0.00 0.00 3050.00
1901 0.00 0.00 3.50 129.50 378.50 534.00 846.50 764.50 410.50 113.50 4.00 0.00 3184.50
1902 0.00 0.00 0.00 98.50 308.50 582.00 604.00 681.50 363.50 58.00 0.00 0.00 2696.00
1903 0.00 0.00 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 0.00 z 0.00
1904 0.00 z 0.00 z 0.00 z 108.00 f 286.00 449.50 657.00 631.50 246.50 h 61.50 0.00 z 0.00 z 2085.50
1905 0.00 z 0.00 z 0.00 z 0.00 z 260.92 a 589.00 728.50 692.00 448.00 47.50 0.00 0.00 2765.92
1906 0.00 0.00 11.00 88.50 294.50 519.50 726.00 684.50 389.50 0.00 z 0.00 z 0.00 z 2713.50
1907 0.00 z 0.00 51.50 103.00 164.50 450.00 744.50 678.00 399.50 185.00 0.00 0.00 2776.00
1908 0.00 0.00 10.50 83.50 184.00 463.50 746.00 640.00 397.00 100.00 0.00 0.00 2624.50
1909 0.00 0.00 8.00 78.50 190.50 572.00 791.00 746.00 416.50 158.00 11.50 0.00 2972.00
1910 0.00 0.00 33.00 131.00 325.50 602.00 801.00 693.50 480.50 111.00 7.00 0.00 3184.50
1911 0.00 0.50 4.50 76.03 a 306.50 519.00 662.00 627.00 455.00 63.50 0.00 0.00 2714.03
1912 0.00 0.00 0.50 20.00 263.00 224.00 q 663.50 624.50 209.50 35.00 0.00 0.00 o 1816.00
1913 0.00 0.00 0.00 a 78.50 353.00 503.50 820.00 719.50 361.00 48.50 0.00 0.00 2884.00
1914 0.00 0.00 3.50 98.50 347.00 510.50 710.50 668.00 439.00 65.50 4.00 0.00 2846.50
1915 0.00 0.00 8.00 135.50 230.00 481.50 761.00 627.50 371.00 58.50 13.50 0.00 2686.50
1916 0.00 0.00 0.00 u 107.50 227.00 494.50 706.50 589.00 351.50 79.50 6.50 0.00 2562.00
1917 0.00 0.00 8.50 40.00 126.00 440.50 758.00 574.00 364.00 106.50 8.50 0.00 2426.00
1918 0.00 0.00 14.00 41.50 238.50 691.00 664.00 607.00 344.50 203.00 4.50 0.00 2808.00
1919 0.00 0.00 7.50 114.00 355.47 a 550.34 a 776.50 671.00 448.45 a 41.00 0.00 0.00 2964.26
1920 0.00 0.00 0.50 32.00 301.50 493.00 705.50 587.00 320.50 105.50 0.00 0.00 2545.50
1921 0.00 3.00 17.50 66.50 306.50 559.50 732.00 647.50 415.86 a 210.50 6.72 a 2.00 2967.59
1922 0.00 0.00 9.00 51.00 289.00 623.50 713.50 736.50 444.00 100.00 0.00 0.00 2966.50
1923 0.00 0.00 2.00 75.50 286.50 483.00 755.50 599.50 306.00 62.50 1.00 0.00 2571.50
1924 0.00 0.00 6.50 64.50 295.00 584.00 683.50 612.50 331.00 93.00 4.00 0.00 2674.00
1925 0.00 0.00 18.60 a 0.00 z 383.50 509.50 730.00 566.50 390.00 99.50 0.00 0.00 2697.60
1926 0.00 0.00 8.78 a 154.50 338.50 540.00 a 652.50 682.50 387.00 134.33 a 0.00 0.00 2898.12
1927 0.00 0.00 b 11.00 120.00 327.05 a 523.50 670.50 586.00 390.00 99.50 4.00 0.00 2731.55
1928 0.00 0.00 18.50 94.00 360.00 457.00 670.00 613.50 427.50 142.00 6.00 0.00 2788.50
1929 0.00 a 0.00 3.00 42.50 268.50 545.00 765.00 677.35 a 338.50 117.50 0.00 0.00 2757.35
1930 0.00 0.00 1.00 174.83 a 262.00 522.50 724.50 669.50 387.41 a 79.50 0.00 0.00 2821.24
1931 0.00 0.00 9.00 106.50 274.00 607.50 800.00 675.00 446.00 148.80 a 3.00 0.00 a 3069.80
1932 0.00 0.00 7.23 a 103.50 341.00 492.00 747.50 662.00 383.50 106.50 0.00 0.00 2843.23
1933 0.00 0.00 7.50 21.00 221.50 650.50 817.50 677.50 500.50 161.00 2.00 0.00 3059.00
1934 0.00 0.00 55.00 249.50 491.00 552.50 860.50 772.50 397.00 139.50 1.00 0.00 3518.50
1935 0.00 0.00 2.00 109.50 283.50 596.00 800.50 714.50 453.00 160.50 5.50 0.00 a 3125.00
1936 0.00 0.00 6.50 191.00 406.50 653.00 803.00 727.00 421.50 110.50 0.00 0.00 3319.00
1937 0.00 0.00 1.50 87.50 412.00 549.50 787.00 755.50 473.00 122.50 10.50 0.00 3199.00
1938 0.00 0.00 z 2.00 151.50 303.00 594.31 a 695.50 727.50 465.00 140.50 0.00 0.00 3079.31
1939 0.00 0.00 22.22 a 163.97 a 404.50 563.50 590.00 h 740.00 506.25 b 102.50 0.00 0.00 2502.93
1940 0.00 0.50 18.00 105.50 441.50 674.00 817.00 721.50 486.50 137.50 4.00 0.00 3406.00
1941 0.00 0.00 8.00 54.50 388.00 492.00 733.67 a 700.00 377.59 a 123.00 3.00 0.00 2879.75
1942 0.00 0.00 0.00 122.00 296.50 559.50 809.00 720.00 431.50 157.00 8.50 0.00 3104.00
1943 0.00 0.00 23.50 243.00 319.00 556.00 811.00 711.00 491.00 180.50 0.00 0.00 3335.00
1944 0.00 0.00 1.50 33.50 374.00 507.00 742.00 724.50 494.50 158.50 h 24.50 0.00 2901.50
1945 0.00 0.00 0.50 59.00 384.50 441.50 775.00 767.50 444.00 202.50 2.00 0.00 3076.50
1946 0.00 0.00 15.50 224.50 264.00 589.00 775.50 722.50 446.00 78.50 0.00 0.00 3115.50
1947 0.00 0.00 12.50 111.00 418.00 485.50 771.00 670.00 465.50 219.00 0.00 0.00 3152.50
1948 0.00 0.00 0.00 141.00 395.50 553.50 738.50 670.00 500.50 115.00 0.00 0.00 3114.00
1949 0.00 0.00 5.00 158.50 331.50 532.00 789.00 706.50 485.00 127.50 0.00 0.00 3135.00
1950 0.00 0.00 3.00 132.00 265.50 561.00 736.50 648.00 417.50 231.50 2.50 0.00 2997.50
1951 0.00 0.00 4.00 87.50 327.00 452.00 753.00 629.50 386.50 91.00 0.50 0.00 2731.00
1952 0.00 0.00 0.00 87.00 364.00 599.48 a 723.50 661.00 438.50 106.50 1.00 0.00 2980.98
1953 0.00 0.00 19.00 61.00 208.00 626.50 754.50 575.50 408.50 90.50 1.50 0.00 2745.00
1954 0.00 0.00 4.00 147.50 392.50 581.00 842.00 647.50 429.00 177.00 2.50 0.00 3223.00
1955 0.00 0.00 1.00 79.50 287.00 510.00 768.50 742.50 450.50 144.50 0.00 1.00 2984.50
1956 0.00 0.00 10.50 75.50 348.50 594.00 701.50 591.00 438.50 134.50 0.00 0.00 2894.00
1957 0.00 0.00 4.00 58.00 175.00 504.50 673.00 648.00 307.00 113.50 4.00 0.00 2487.00
1958 0.00 0.00 0.00 30.00 409.00 624.00 692.00 733.50 415.00 127.50 2.50 0.00 3033.50
1959 0.00 0.00 4.50 133.50 357.00 654.00 781.50 650.50 370.50 50.50 0.00 0.00 3002.00
1960 0.00 0.00 13.50 128.00 293.50 587.00 753.00 667.50 452.00 97.00 3.50 0.00 2995.00
1961 0.00 0.00 6.00 84.00 374.00 629.00 722.50 706.00 241.00 88.50 0.00 0.00 2851.00
1962 0.00 6.00 4.50 158.50 315.50 532.00 671.00 647.50 402.00 112.00 0.00 0.00 2849.00
1963 0.00 0.00 31.00 97.00 416.50 517.50 774.50 657.00 460.00 210.50 6.50 0.00 3170.50
1964 0.00 0.00 0.00 66.50 314.50 482.00 769.50 605.50 350.50 124.50 0.00 0.00 2713.00
1965 0.00 0.00 2.50 83.00 244.00 448.00 688.00 618.00 290.50 90.00 3.50 0.00 2467.50
1966 0.00 0.00 7.00 87.50 385.00 574.50 810.50 683.00 426.50 82.50 5.00 0.00 3061.50
1967 0.00 0.50 45.00 76.50 262.00 449.50 729.00 651.50 434.00 144.50 0.00 0.00 2792.50
1968 0.00 0.00 6.00 26.50 230.00 508.50 718.00 524.00 310.00 104.00 0.00 0.00 2427.00
1969 0.00 0.00 0.00 73.50 363.00 391.00 721.00 704.50 402.00 33.00 0.00 0.00 2688.00
1970 0.00 0.00 0.00 26.50 320.50 502.00 705.50 693.50 304.50 66.00 0.00 0.00 2618.50
1971 0.00 0.00 26.00 53.00 216.50 542.00 727.50 733.50 310.00 99.50 0.00 0.00 2708.00
1972 0.00 1.00 10.33 a 87.00 265.00 551.50 704.00 665.00 351.50 0.00 z 0.00 0.00 z 2635.33
1973 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
1974 0.00 0.00 22.50 57.00 360.50 567.00 728.00 590.50 346.50 138.50 0.00 0.00 2810.50
1975 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 700.50 574.00 332.00 77.50 3.50 0.00 1687.50
1976 0.00 0.00 1.50 42.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 0.00 44.00
1977 0.00 0.00 0.00 147.50 314.50 695.00 784.50 677.50 440.00 119.00 3.00 0.00 3181.00
1978 0.00 z 0.00 38.00 106.50 246.50 566.00 714.00 618.50 391.00 99.00 5.50 0.00 z 2785.00
1979 0.00 b 0.00 z 0.00 95.00 299.84 b 519.50 727.00 616.50 461.50 184.00 0.00 a 0.00 2903.34
1980 0.00 0.00 0.00 100.00 239.00 608.50 792.00 692.50 438.50 130.50 5.00 1.00 3007.00
1981 0.00 a 8.00 6.00 209.00 294.00 663.00 819.50 715.00 513.00 129.00 0.00 0.00 a 3356.50
1982 0.00 a 0.00 5.00 77.00 309.00 551.50 594.00 f 742.50 413.00 44.50 0.00 0.00 2142.50
1983 0.00 0.00 1.50 65.00 209.50 465.50 711.50 784.50 497.50 128.50 19.00 0.00 2882.50
1984 0.00 0.00 0.00 63.50 205.00 i 229.00 t 779.50 677.00 490.00 100.00 0.00 0.00 2110.00
1985 0.00 0.00 0.00 139.50 353.50 619.00 757.50 0.00 z 388.00 123.00 12.41 a 0.00 2392.91
1986 0.00 3.50 43.92 a 105.50 299.00 590.50 643.00 672.50 328.00 85.50 4.00 o 0.00 2771.42
1987 0.00 c 0.00 0.00 145.34 a 317.00 581.38 a 0.00 z 618.00 349.00 136.00 10.50 0.00 2157.22
1988 0.00 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 0.00 z 0.00 0.00
1989 0.00 0.00 43.50 144.50 274.00 247.50 k 717.50 450.50 163.00 199.00 0.00 k 0.00 1992.00
1990 0.00 0.00 35.00 122.00 244.50 613.50 710.50 610.00 491.50 102.00 3.50 0.00 2932.50
1991 0.00 0.00 5.50 53.50 324.00 534.50 703.00 692.00 413.00 150.00 0.00 0.00 2875.50
1992 0.00 0.00 0.50 189.50 388.50 538.00 644.50 262.50 t 414.50 171.50 0.00 0.00 2347.00
1993 0.00 0.00 19.00 74.50 323.50 515.00 592.00 467.50 217.50 41.00 0.00 0.00 2250.00
1994 0.00 0.00 0.50 58.50 234.00 679.00 771.50 767.50 426.50 76.00 16.50 0.00 3030.00
1995 0.00 0.00 37.50 65.50 171.00 459.00 647.50 760.00 439.50 73.00 7.50 0.00 2660.50
1996 0.00 0.00 12.00 89.50 406.50 594.00 779.00 727.00 369.50 152.50 0.00 0.00 3130.00
1997 0.00 0.00 29.50 50.50 331.00 582.50 391.00 m 677.00 460.00 146.50 0.00 0.00 2277.00
1998 0.00 0.00 a 38.00 20.00 p 0.00 z 488.00 811.50 404.50 n 208.00 t 66.50 m 1.00 p 0.00 c 1337.50
1999 0.00 c 1.50 g 26.00 87.32 b 226.76 d 519.83 a 618.00 f 654.32 c 335.89 b 111.60 a 2.14 b 0.00 1963.87
Period of Record Statistics
MEAN 0.00 0.23 11.77 99.41 308.51 547.72 741.32 668.51 399.42 114.49 2.92 0.04 2916.97
S.D. 0.00 1.09 13.44 47.40 69.34 64.09 54.93 62.87 72.04 44.90 4.57 0.24 247.30
SKEW 0.00 5.61 1.35 0.85 -0.10 0.14 -0.21 -0.73 -0.87 0.44 2.20 6.58 -0.17
MAX 0.00 8.00 55.00 249.50 491.00 695.00 860.50 784.50 513.00 231.50 24.50 2.00 3518.50
MIN 0.00 0.00 0.00 20.00 126.00 391.00 592.00 450.50 163.00 33.00 0.00 0.00 2250.00
NO YRS 102 100 100 99 99 97 97 98 101 98 98 100 76