CENTER 4 SSW, COLORADO

Monthly Total Growing Degree Days

(051458)

Base Temperature = 40 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 0.00 z 0.00 z 0.00 z 0.00 z 0.00 b 0.00
1942 0.00 0.00 0.00 106.50 292.00 519.50 686.00 636.00 424.50 181.00 13.00 0.00 2858.50
1943 0.00 0.00 0.00 z 146.00 r 367.50 595.00 779.00 727.00 444.50 116.50 0.00 0.00 3029.50
1944 0.00 0.00 0.00 42.00 347.00 601.50 715.00 661.00 425.69 a 146.00 8.50 0.00 2946.69
1945 0.00 0.00 2.00 88.00 420.00 536.38 a 716.50 713.00 428.50 162.50 7.50 0.00 3074.38
1946 0.00 a 0.00 21.00 246.00 336.00 666.00 772.79 c 668.00 465.00 81.50 0.00 0.00 3256.29
1947 0.00 a 0.00 b 2.00 89.00 407.00 534.50 749.50 680.00 460.50 198.50 0.00 0.00 3121.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 723.50 461.00 81.24 b 0.00 0.00 b 1265.74
1949 0.00 0.00 b 0.00 113.00 g 348.50 532.00 739.00 616.00 409.44 c 40.50 g 0.00 0.00 2644.94
1950 0.00 c 0.00 b 4.00 f 125.89 b 285.64 c 584.50 656.50 570.50 367.00 223.56 e 10.00 0.00 2823.59
1951 0.00 0.00 2.00 96.00 396.28 a 546.50 857.00 719.72 a 503.50 172.00 0.00 0.00 3293.00
1952 0.00 0.00 0.00 a 133.50 381.00 679.50 746.50 693.07 c 489.50 193.50 6.50 0.00 3323.07
1953 0.00 0.00 28.00 110.50 260.50 619.50 771.50 639.50 494.00 200.98 a 17.50 0.00 3141.98
1954 0.00 2.50 13.00 245.00 464.50 707.00 788.00 632.00 524.00 338.62 e 1.15 d 0.00 3715.77
1955 0.00 0.00 9.00 82.50 307.50 540.00 746.00 778.50 496.50 222.50 10.50 3.00 3196.00
1956 0.00 0.00 21.50 69.00 450.00 697.00 768.50 637.50 548.00 212.50 0.00 0.00 3404.00
1957 0.00 1.00 11.50 63.50 220.00 586.50 743.00 691.00 398.00 160.50 7.50 0.00 2882.50
1958 0.00 8.00 1.50 64.50 447.00 641.50 697.50 714.50 465.50 198.00 7.00 0.00 3245.00
1959 0.00 0.00 0.00 128.50 281.50 636.00 671.50 641.00 367.00 100.50 5.50 0.00 2831.50
1960 0.00 0.00 27.50 166.00 317.00 618.00 707.00 664.50 479.50 151.50 6.50 0.00 3137.50
1961 0.00 0.00 8.50 116.00 368.00 613.50 687.50 701.00 363.50 151.00 0.00 0.00 3009.00
1962 0.00 5.50 8.50 185.50 344.50 521.50 671.50 632.00 445.00 219.50 19.50 0.00 3053.00
1963 0.00 8.00 44.50 112.50 b 425.00 545.00 793.00 705.00 544.50 310.00 10.50 0.00 3498.00
1964 0.00 0.00 6.00 75.00 369.50 546.00 830.50 680.00 476.00 208.00 2.50 0.00 3193.50
1965 0.00 0.00 7.00 119.00 284.50 486.50 736.77 a 624.00 380.50 223.50 12.00 0.00 2873.77
1966 0.00 0.00 32.00 132.00 402.00 535.50 797.50 666.00 503.00 156.00 3.00 6.00 3233.00
1967 0.00 0.00 54.00 77.00 332.50 506.00 764.00 647.00 456.00 230.50 6.50 0.00 3073.50
1968 0.00 0.00 19.50 53.50 308.00 605.50 707.50 616.50 391.00 223.00 2.50 0.00 2927.00
1969 0.00 0.00 30.00 163.00 430.00 483.50 779.00 774.00 482.00 80.50 1.50 0.00 3223.50
1970 2.00 0.00 1.50 44.00 397.00 523.50 742.50 731.50 372.93 a 62.50 0.00 0.00 2877.43
1971 0.00 0.00 39.00 55.50 214.00 510.50 634.00 628.50 361.50 124.00 0.50 0.00 2567.50
1972 0.00 1.50 52.00 98.00 279.00 547.50 633.50 576.50 370.00 195.00 0.00 0.00 2753.00
1973 0.00 0.00 0.00 47.00 316.00 559.00 649.00 597.00 367.00 154.00 24.00 0.00 2713.00
1974 0.00 0.00 30.00 75.00 420.50 591.00 678.00 544.00 409.50 189.00 0.00 0.00 2937.00
1975 0.00 0.00 3.50 54.50 267.00 456.50 670.00 593.00 384.31 a 136.00 14.50 0.00 2579.31
1976 0.00 0.00 10.50 69.50 281.00 423.00 646.50 519.50 377.00 82.00 0.00 0.00 2409.00
1977 0.00 0.00 0.00 110.00 275.00 591.00 661.00 639.50 411.50 121.00 0.00 0.00 2809.00
1978 0.00 0.00 21.50 69.50 227.50 476.50 616.00 584.00 392.50 144.00 13.00 0.00 2544.50
1979 0.00 0.00 0.50 112.00 298.50 450.50 632.50 532.50 446.00 216.00 0.00 0.00 2688.50
1980 0.00 0.00 0.00 99.00 219.00 524.00 691.50 557.00 401.00 116.50 10.00 0.00 2618.00
1981 0.00 0.00 0.00 182.50 224.50 605.17 a 701.00 597.50 414.00 97.00 9.31 a 0.00 2830.98
1982 0.00 0.00 1.00 48.00 201.50 391.50 637.50 693.50 435.50 69.00 0.00 0.00 2477.50
1983 0.00 0.00 11.00 66.00 218.00 445.00 719.50 715.50 507.00 164.00 29.50 0.00 2875.50
1984 0.00 0.00 2.00 70.00 452.00 521.50 731.00 684.00 465.00 102.50 0.50 0.00 3028.50
1985 0.00 0.00 5.34 b 137.00 340.00 579.50 721.00 689.50 355.00 147.50 7.00 0.00 2981.84
1986 0.00 20.00 66.00 161.90 a 326.53 a 572.50 645.50 657.00 350.00 106.00 2.50 0.00 2907.93
1987 0.00 0.00 0.00 147.00 329.50 587.50 663.00 625.50 405.50 239.00 16.00 0.00 3013.00
1988 0.00 0.00 19.00 143.00 294.00 590.50 693.50 665.00 423.50 252.50 17.50 0.00 3098.50
1989 0.00 0.00 70.00 214.00 423.50 516.50 745.50 613.00 459.50 176.50 6.50 1.50 3226.50
1990 0.00 0.00 38.00 131.00 280.50 598.50 661.00 562.00 529.50 166.00 8.00 0.00 2974.50
1991 0.00 0.00 3.50 87.50 336.00 545.50 683.50 663.50 471.00 279.50 0.00 0.00 3070.00
1992 0.00 0.00 0.00 195.50 410.00 490.50 611.50 575.50 430.50 235.50 0.00 0.00 2949.00
1993 0.00 0.00 26.00 96.00 320.00 536.50 660.00 585.50 372.00 155.50 0.00 0.00 2751.50
1994 0.00 0.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 455.00 117.50 13.00 0.00 585.50
1995 0.00 4.00 31.50 71.50 251.00 495.50 632.50 732.50 441.00 161.50 13.00 0.00 2834.00
1996 0.00 3.00 13.00 138.50 504.50 591.50 734.00 673.50 395.00 212.00 4.00 0.00 3269.00
1997 0.00 0.00 68.20 a 83.00 357.53 a 576.00 679.50 679.50 551.50 190.00 0.00 0.00 3185.23
1998 0.00 0.00 37.50 70.00 362.00 506.00 761.50 709.50 581.50 137.00 3.00 0.00 3168.00
1999 0.00 0.00 33.07 a 82.00 283.50 538.00 737.00 683.50 431.00 210.00 27.50 0.00 3025.57
2000 0.00 0.00 20.00 165.00 d 448.00 602.00 736.00 701.50 538.00 139.00 0.00 0.00 3349.50
2001 0.00 0.00 24.00 168.00 445.00 634.00 767.00 709.00 543.50 194.50 34.50 0.00 3519.50
2002 0.00 0.00 34.00 257.50 391.50 681.50 798.50 689.50 463.50 127.50 5.50 0.00 3449.00
2003 0.00 z 0.50 41.00 153.00 430.00 570.00 844.50 746.00 490.00 303.00 17.50 0.00 3595.50
2004 0.00 0.00 94.00 103.00 402.50 575.50 697.00 664.50 447.50 152.00 11.50 0.00 3147.50
2005 1.00 0.00 10.50 114.50 426.00 574.50 784.50 690.00 529.00 209.00 25.50 0.00 3364.50
2006 0.00 1.50 19.00 179.00 469.50 682.00 798.00 716.00 0.00 z 166.50 17.50 0.00 3049.00
2007 0.00 0.00 96.00 159.00 369.00 630.00 819.50 790.50 523.00 182.00 26.00 0.00 3595.00
2008 0.00 0.00 17.50 96.00 310.50 550.00 750.00 685.00 454.00 180.50 20.00 1.00 3064.50
2009 0.00 0.00 51.00 124.00 465.50 527.00 0.00 z 637.00 461.50 0.00 z 0.00 z 0.00 z 2266.00
2010 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
2011 0.00 n 1.00 k 15.00 k 91.50 n 104.00 p 395.00 l 507.50 m 512.00 k 334.50 j 105.00 k 4.00 i 0.00 n 0.00
2012 0.00 l 0.00 k 24.50 n 159.00 n 161.00 t 401.50 n 383.50 q 528.00 i 225.00 o 96.00 p 12.00 k 0.00 n 0.00
2013 0.00 s 0.00 n 10.00 p 8.00 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
Period of Record Statistics
MEAN 0.05 0.83 20.93 115.11 346.36 561.38 719.16 659.54 446.41 172.06 8.01 0.17 3036.07
S.D. 0.27 2.88 23.03 51.38 76.17 65.56 59.49 59.65 57.75 58.21 8.69 0.83 278.78
SKEW 6.31 5.02 1.41 0.85 -0.03 -0.01 0.19 -0.23 0.24 0.41 1.09 5.85 0.00
MAX 2.00 20.00 96.00 257.50 504.50 707.00 857.00 790.50 581.50 338.62 34.50 6.00 3715.77
MIN 0.00 0.00 0.00 42.00 201.50 391.50 611.50 519.50 350.00 62.50 0.00 0.00 2409.00
NO YRS 66 67 64 64 66 66 65 67 67 66 67 68 60