NORTHDALE, COLORADO

Monthly Total Growing Degree Days

(055970)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 200212
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
1930 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 442.50 h 840.00 784.50 486.50 142.00 11.00 0.00 2264.00
1931 0.00 0.00 17.00 155.00 313.50 668.00 912.50 796.50 595.00 258.50 34.50 0.00 i 3750.50
1932 0.00 5.00 13.00 96.00 j 327.00 548.00 847.50 788.00 498.50 184.00 3.50 0.00 3214.50
1933 0.00 0.00 29.00 62.00 234.00 731.00 918.00 806.50 627.50 278.50 10.50 0.00 3697.00
1934 0.00 2.50 77.00 248.00 536.00 555.50 912.50 838.00 519.00 250.50 33.00 0.00 3972.00
1935 0.50 3.00 16.00 140.50 265.50 494.50 685.50 621.50 379.00 104.50 5.50 0.00 2716.00
1936 0.00 0.00 3.50 105.50 261.00 723.50 917.00 783.50 362.00 104.00 0.00 0.00 3260.00
1937 0.00 0.00 7.00 136.50 468.00 662.50 563.00 k 873.50 576.50 271.50 16.50 11.00 3023.00
1938 0.00 0.50 12.00 169.50 354.50 300.00 r 812.00 877.00 567.50 264.50 4.50 0.00 3062.00
1939 1.00 0.00 48.50 259.00 474.50 642.00 903.50 833.50 616.50 175.00 19.50 4.50 3977.50
1940 0.00 1.50 54.00 183.50 463.50 703.50 918.50 836.00 569.00 269.00 2.00 0.00 4000.50
1941 0.00 0.00 16.00 47.50 382.00 504.50 796.50 744.00 437.00 175.00 22.50 0.00 3125.00
1942 0.00 0.00 0.00 153.00 274.00 571.00 872.00 781.00 511.00 243.00 21.50 0.00 3426.50
1943 0.00 b 0.00 c 42.00 271.00 361.50 587.50 853.50 823.00 561.00 230.50 3.00 0.00 3733.00
1944 0.00 0.00 0.00 27.00 339.00 502.50 804.50 0.00 z 563.50 286.50 26.00 0.00 2549.00
1945 0.00 0.00 13.00 103.00 383.50 526.50 875.00 866.50 558.50 231.00 21.50 0.00 3578.50
1946 0.50 4.00 80.50 283.00 377.00 684.50 914.00 859.50 554.00 172.00 12.00 9.00 3950.00
1947 0.00 3.50 43.00 109.00 483.50 558.50 893.50 817.50 629.50 301.00 5.00 0.00 3844.00
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 810.50 625.50 222.00 10.00 0.00 a 1668.00
1949 0.00 0.00 6.50 206.00 238.00 g 607.50 b 854.50 755.50 598.00 205.00 52.00 0.00 3285.00
1950 0.00 0.00 16.50 164.50 344.00 612.00 831.00 767.50 483.50 379.50 36.50 3.00 3638.00
1951 1.50 7.50 18.50 127.50 408.00 563.00 946.00 789.00 522.50 186.50 1.50 0.00 3571.50
1952 0.00 0.00 0.00 164.00 422.50 653.50 858.00 870.50 604.50 282.50 11.50 0.00 3867.00
1953 0.00 0.00 46.00 118.00 280.50 690.00 926.50 785.00 558.50 276.50 39.50 0.00 3720.50
1954 1.50 8.00 17.00 244.00 450.50 651.50 960.50 771.00 582.00 316.00 19.00 0.00 4021.00
1955 0.00 0.00 10.50 115.00 348.00 558.50 856.00 879.50 565.00 269.50 20.50 4.13 a 3626.63
1956 0.50 0.00 36.50 141.50 455.50 735.50 819.50 731.08 a 603.00 242.50 6.50 0.00 3772.08
1957 0.00 5.00 32.50 115.34 a 279.50 637.50 832.50 801.50 490.50 237.50 13.50 0.00 3445.34
1958 0.00 18.00 1.00 86.50 469.50 705.00 832.50 901.00 588.00 264.02 a 21.50 0.50 3887.52
1959 0.00 a 0.00 18.00 186.00 365.00 721.50 919.00 818.50 546.00 196.00 12.00 0.00 3782.00
1960 0.00 0.00 42.50 170.00 345.00 495.50 g 878.33 a 879.50 643.00 191.00 50.00 0.00 3199.33
1961 0.00 2.50 32.00 141.50 406.00 724.50 902.50 864.00 407.50 209.50 4.00 0.00 3694.00
1962 0.00 7.50 20.50 195.50 342.50 618.50 822.50 829.50 571.00 282.00 40.50 0.00 3730.00
1963 0.00 19.50 31.50 122.00 466.00 621.50 896.42 a 836.00 639.50 375.00 41.00 0.00 4048.42
1964 0.00 0.00 10.00 81.50 372.00 625.00 931.00 794.50 540.00 276.00 17.00 0.00 3647.00
1965 0.00 1.00 13.00 138.50 289.50 484.00 842.00 785.00 451.50 282.50 44.50 0.00 3331.50
1966 0.00 a 0.00 76.50 131.00 447.50 616.50 927.50 859.00 592.00 213.50 32.50 3.10 a 3899.10
1967 0.00 5.00 53.00 112.00 320.00 555.50 903.00 828.00 580.00 274.50 19.00 0.00 3650.00
1968 0.00 0.00 23.50 52.50 265.50 672.00 840.50 689.00 481.00 249.00 8.50 0.00 3281.50
1969 0.00 0.00 21.50 164.00 472.00 589.50 899.50 907.50 601.50 99.50 6.00 1.00 3762.00
1970 0.00 1.00 5.50 66.50 427.50 600.50 889.00 896.50 471.00 136.00 10.00 0.00 3503.50
1971 2.00 2.00 65.00 111.00 296.50 620.50 895.00 872.00 474.00 182.50 5.50 0.00 3526.00
1972 0.00 20.50 74.00 144.50 375.50 686.50 926.00 818.00 564.00 300.50 1.00 0.00 3910.50
1973 0.00 0.00 0.00 78.50 367.00 594.50 824.00 811.50 459.50 224.50 53.00 0.00 3412.50
1974 0.00 0.00 61.50 101.00 470.50 732.00 853.50 752.50 523.50 295.00 3.50 0.00 3793.00
1975 0.00 0.00 26.00 74.50 276.00 545.50 832.50 720.50 515.00 247.00 29.00 0.00 3266.00
1976 0.00 5.50 32.00 115.00 423.00 632.50 897.50 800.50 558.00 172.00 38.50 0.00 3674.50
1977 0.00 0.00 17.00 220.00 346.00 758.50 927.50 856.50 633.10 a 285.00 44.50 4.50 4092.60
1978 0.00 0.00 76.00 170.50 331.50 670.00 850.00 787.50 538.50 290.00 66.50 0.00 3780.50
1979 0.00 0.00 0.00 189.00 372.50 599.50 850.95 a 772.50 620.50 324.50 3.00 0.00 3732.45
1980 0.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 497.00 p 834.50 558.50 251.00 68.50 12.50 1725.50
1981 0.00 2.00 25.00 230.50 337.50 767.50 915.00 832.50 612.50 210.50 70.00 1.00 4004.00
1982 0.00 2.50 26.50 141.50 402.00 625.00 879.00 891.00 632.00 148.50 11.00 0.00 3759.00
1983 0.00 0.00 27.50 91.50 308.50 593.50 880.00 890.00 649.00 272.00 60.50 0.00 3772.50
1984 0.00 0.00 16.00 92.50 528.50 650.50 958.00 887.50 625.00 173.00 14.00 0.00 3945.00
1985 0.00 0.00 41.50 231.50 423.00 709.00 918.50 839.00 466.50 247.00 32.50 0.00 3908.50
1986 1.00 43.56 a 119.50 93.00 384.00 685.00 839.00 906.50 501.50 201.50 27.00 0.00 3801.56
1987 0.00 0.00 3.00 228.00 398.50 721.00 849.50 791.50 564.50 330.00 43.00 0.00 3929.00
1988 0.00 4.00 23.00 154.00 374.00 730.50 903.50 848.00 536.00 360.00 36.50 0.00 3969.50
1989 0.00 3.50 108.00 254.50 452.50 634.50 915.00 744.50 572.00 209.00 22.50 0.00 3916.00
1990 0.00 5.00 61.50 194.50 335.00 738.50 873.50 786.00 657.00 206.00 29.50 0.00 3886.50
1991 0.00 0.00 6.50 81.00 351.00 571.00 839.00 817.50 543.00 305.50 9.00 0.00 3523.50
1992 0.00 0.00 0.00 z 263.50 436.50 624.50 781.50 806.00 542.00 300.50 3.50 0.00 3758.00
1993 0.00 0.00 55.50 177.00 433.50 601.50 823.00 789.50 529.50 213.00 7.50 0.00 3630.00
1994 0.00 0.00 73.50 192.00 454.50 901.00 942.00 932.00 403.50 k 0.00 z 0.00 z 0.00 z 3495.00
1995 0.00 43.00 55.00 111.00 270.00 544.50 809.50 897.50 600.50 225.00 40.00 5.50 3601.50
1996 0.00 28.00 27.00 165.00 529.00 738.50 955.00 872.00 495.50 249.50 8.50 0.00 4068.00
1997 0.00 0.00 73.00 122.00 465.00 640.00 833.50 806.00 646.00 218.00 15.50 0.00 3819.00
1998 0.00 0.00 60.50 99.50 388.50 575.50 950.50 882.00 662.50 225.00 21.00 2.00 3867.00
1999 0.00 1.50 62.00 112.00 339.50 620.00 891.00 801.50 514.50 271.52 b 61.00 2.00 3676.52
2000 11.50 7.50 25.00 250.50 538.88 a 736.00 893.50 931.00 618.00 242.00 2.00 0.00 4255.88
2001 0.00 0.00 58.00 189.00 492.00 709.50 917.00 854.50 626.50 279.00 69.50 0.00 4195.00
2002 0.00 0.00 55.00 290.00 446.00 790.00 991.00 836.00 565.50 165.50 11.50 0.00 4150.50
Period of Record Statistics
MEAN 0.29 3.77 34.17 151.66 385.81 641.96 877.98 822.88 555.01 239.32 23.30 0.90 3738.12
S.D. 1.40 8.62 27.30 62.54 75.66 80.03 51.43 56.60 66.07 59.76 19.25 2.44 274.69
SKEW 7.38 3.35 0.87 0.39 0.07 0.35 -0.63 -0.60 -0.68 -0.15 0.87 3.29 -1.01
MAX 11.50 43.56 119.50 290.00 538.88 901.00 991.00 932.00 662.50 379.50 70.00 12.50 4255.88
MIN 0.00 0.00 0.00 27.00 234.00 484.00 685.50 621.50 362.00 99.50 0.00 0.00 2716.00
NO YRS 71 70 69 69 69 68 70 72 72 72 72 71 61