CORTEZ, COLORADO

Monthly Total Growing Degree Days

(051886)

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
1911 0.00 z 0.00 z 0.00 z 111.50 f 0.00 z 0.00 z 896.33 b 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 896.33
1912 0.00 z 0.00 z 0.00 z 0.00 z 429.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 429.00
1913 0.00 z 3.00 28.50 220.00 503.00 708.00 914.50 891.77 a 507.50 247.00 95.50 0.00 4118.77
1914 1.00 1.50 52.00 182.00 h 485.50 693.00 859.00 837.00 606.00 221.50 44.48 a 0.00 3800.98
1915 0.00 0.00 0.00 z 0.00 z 317.50 597.50 640.67 d 692.50 0.00 z 0.00 z 0.00 z 0.00 z 2248.17
1916 0.00 z 0.00 137.50 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 137.50
1917 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
1918 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
1919 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
1920 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
1921 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
1922 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
1923 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
1924 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
1925 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
1926 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
1927 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
1928 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
1929 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 887.50 593.50 301.00 5.50 4.00 1791.50
1930 0.00 14.00 12.00 329.00 421.50 755.50 929.50 872.50 451.00 f 216.50 27.00 0.00 3577.50
1931 1.50 1.50 30.50 206.50 401.00 767.00 990.50 881.50 673.50 330.50 49.00 0.00 4333.00
1932 0.00 15.50 58.00 261.00 547.00 695.00 933.00 854.00 573.50 226.00 9.00 2.00 4174.00
1933 0.00 i 0.00 47.50 83.00 302.50 756.50 956.00 878.00 699.83 a 365.00 21.21 a 0.00 b 4109.53
1934 0.00 16.50 133.00 321.50 620.50 628.50 988.00 948.00 576.00 371.47 b 81.21 a 0.00 4684.67
1935 3.10 a 8.81 a 41.50 199.50 366.00 712.50 966.50 916.50 636.50 319.50 8.57 b 0.00 4178.99
1936 0.00 1.00 47.00 287.50 533.50 835.50 963.50 913.00 573.50 266.00 10.50 0.00 4431.00
1937 0.00 0.00 11.50 175.50 522.50 700.50 916.50 946.50 697.00 345.50 54.50 4.00 4374.00
1938 1.00 11.00 54.50 256.00 415.50 749.50 863.50 908.00 663.50 351.00 6.50 0.00 a 4280.00
1939 0.00 0.00 96.50 267.00 530.00 722.00 979.00 918.00 667.00 240.50 50.50 14.50 4485.00
1940 2.00 11.00 84.00 241.50 530.50 817.00 992.50 894.50 657.50 334.50 24.00 0.00 4589.00
1941 0.00 8.50 48.50 110.00 490.00 623.50 888.50 844.50 541.50 278.00 44.50 2.50 3880.00
1942 0.00 0.00 12.00 275.00 399.50 674.50 971.50 939.50 640.50 358.50 97.00 1.50 4369.50
1943 4.50 44.59 a 99.00 415.50 570.50 808.50 1033.50 1001.50 704.50 400.00 45.00 1.00 5128.09
1944 0.00 1.50 33.50 140.50 512.00 704.50 945.50 921.50 663.50 419.50 67.00 0.00 4409.00
1945 0.00 9.50 31.00 165.00 491.50 620.50 979.50 970.50 636.50 369.50 49.50 0.00 4323.00
1946 0.00 10.00 92.00 382.00 442.00 802.50 989.00 934.50 685.00 250.00 17.50 u 26.87 a 4613.87
1947 0.50 13.00 74.50 219.00 581.00 658.50 1007.00 911.00 727.00 389.50 17.00 0.50 4598.50
1948 4.50 10.50 27.50 279.00 537.00 700.50 960.00 919.50 719.00 335.50 18.00 1.00 4512.00
1949 6.00 2.50 71.00 295.50 470.17 a 687.50 973.00 897.00 731.50 295.50 94.50 0.00 4524.17
1950 3.50 35.50 57.00 266.00 432.00 724.20 e 924.50 881.00 608.00 533.00 58.97 a 10.00 4533.67
1951 4.00 25.00 f 53.50 224.50 534.50 694.00 1063.50 948.50 668.50 303.00 10.00 0.00 4504.00
1952 0.00 1.50 39.00 265.50 534.50 783.00 950.50 974.50 713.50 416.50 61.00 0.00 4739.50
1953 1.50 5.50 103.50 212.00 398.00 808.00 1035.50 891.50 715.50 375.50 89.50 0.00 4636.00
1954 11.00 30.50 59.00 381.50 600.00 780.00 1042.50 886.50 718.50 416.00 88.50 1.50 5015.50
1955 2.00 0.00 44.00 187.00 474.00 686.00 944.00 948.50 684.00 376.00 40.50 29.50 4415.50
1956 19.50 6.00 87.00 230.50 539.50 839.50 934.50 827.00 708.00 379.50 7.50 0.00 4578.50
1957 4.00 38.50 56.50 186.00 390.00 720.00 919.00 884.50 598.50 341.50 24.00 1.00 4163.50
1958 0.00 51.00 27.00 166.00 606.50 824.00 927.50 980.50 697.50 381.00 61.00 7.50 4729.50
1959 0.00 3.00 47.00 268.00 554.00 885.50 1038.50 954.50 653.50 330.50 33.50 0.00 4768.00
1960 0.50 0.00 113.50 268.50 480.50 814.00 1034.00 978.50 761.50 294.50 72.50 5.50 4823.50
1961 0.00 18.50 68.00 205.50 538.50 859.50 1001.00 970.50 560.50 321.00 19.00 7.00 4569.00
1962 0.00 24.50 38.00 329.48 a 473.00 735.00 946.53 a 935.50 684.83 a 383.50 103.50 4.00 4657.84
1963 0.00 30.00 86.50 240.50 609.00 705.50 1031.78 a 929.50 743.50 471.50 75.00 0.00 4922.78
1964 0.00 0.00 20.50 168.50 495.00 722.50 1016.50 868.00 621.00 381.00 40.50 0.00 4333.50
1965 0.00 7.50 42.00 212.50 396.00 617.00 947.50 859.00 559.50 345.00 139.00 2.50 4127.50
1966 0.00 0.00 135.00 243.00 589.00 751.00 1035.50 945.50 668.00 328.00 111.00 16.00 4822.00
1967 3.50 19.50 160.00 197.50 447.00 680.50 992.50 903.00 686.50 368.50 105.00 0.00 4563.50
1968 0.00 10.00 63.50 115.00 453.50 773.50 958.50 782.50 606.00 361.00 33.00 2.00 4158.50
1969 7.50 5.00 46.50 287.00 588.50 688.50 1020.00 1039.00 714.50 202.50 34.50 6.00 4639.50
1970 7.00 20.00 13.00 82.50 510.00 744.50 1020.00 990.00 574.50 212.50 47.00 2.50 4223.50
1971 10.50 12.00 114.50 210.00 418.50 780.00 1030.00 931.00 567.50 286.00 27.00 12.00 4399.00
1972 7.50 30.00 181.00 257.00 496.00 802.00 1015.50 912.00 681.50 400.00 12.00 0.00 4794.50
1973 0.00 4.50 13.50 122.00 438.50 697.00 946.50 921.50 554.00 350.00 115.00 5.50 4168.00
1974 0.00 0.00 129.50 188.50 587.00 862.00 972.50 879.37 a 653.33 c 398.02 c 15.50 0.50 4686.22
1975 0.50 0.00 b 44.00 133.93 b 365.00 635.77 d 946.07 d 0.00 z 469.50 h 211.00 j 60.00 i 1.00 j 2125.27
1976 0.00 b 31.00 43.00 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 74.00
1977 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 67.00 5.00 72.00
1978 0.00 4.50 103.00 231.50 401.00 762.00 973.50 888.00 614.00 386.00 80.50 0.00 a 4444.00
1979 0.00 0.00 a 19.50 223.00 418.50 680.50 902.00 0.00 z 705.00 397.00 6.72 a 0.00 3352.22
1980 0.00 2.50 17.00 203.50 363.00 745.00 960.00 881.00 621.00 284.00 107.50 15.50 4200.00
1981 0.00 14.00 28.50 298.00 441.00 792.00 982.50 895.00 663.50 280.00 87.00 3.50 4485.00
1982 1.50 13.00 45.50 167.00 405.50 664.00 0.00 z 915.50 642.50 194.00 23.00 0.50 3072.00
1983 0.00 3.00 30.00 119.00 342.50 639.50 912.00 934.00 690.00 329.50 87.50 0.00 a 4087.00
1984 0.00 0.00 0.00 z 134.00 559.00 688.00 961.50 921.50 649.50 166.50 55.00 0.00 4135.00
1985 0.00 4.50 52.00 244.50 482.00 761.38 a 0.00 z 886.50 499.00 282.50 54.50 1.50 3268.38
1986 0.00 z 43.50 130.00 223.00 450.50 0.00 z 876.00 936.00 537.50 232.50 36.00 4.50 3469.50
1987 0.00 8.00 22.00 227.50 466.00 760.00 886.00 823.50 601.00 373.50 50.00 2.50 4220.00
1988 0.00 8.00 45.00 176.38 a 413.50 802.50 944.00 880.50 562.00 422.00 78.00 1.00 4332.88
1989 0.00 18.50 126.00 295.00 499.00 668.50 998.00 860.50 624.00 296.00 38.89 c 0.00 4424.39
1990 0.00 15.50 88.00 261.50 408.00 820.00 927.00 867.00 682.50 251.50 73.50 0.00 4394.50
1991 0.00 1.50 21.00 101.00 425.50 654.50 470.50 n 901.50 602.50 0.00 z 34.00 0.00 2741.50
1992 0.00 2.50 79.00 292.00 501.50 640.00 854.50 871.50 628.00 391.00 13.50 1.00 4274.50
1993 0.00 5.00 73.50 181.50 488.00 657.50 884.00 850.50 591.00 274.00 13.00 4.50 4022.50
1994 0.00 4.50 100.50 232.00 495.00 850.50 997.00 1016.00 681.00 255.50 49.50 10.00 4691.50
1995 0.00 54.50 115.50 132.00 332.00 679.50 910.50 973.00 670.50 266.50 56.00 17.50 4207.50
1996 0.00 35.50 44.95 a 221.50 579.50 804.50 1006.50 931.50 543.50 315.00 61.00 1.00 4544.45
1997 3.50 7.00 143.00 0.00 z 0.00 z 777.50 967.50 939.00 774.00 264.50 h 57.00 k 0.00 3611.50
1998 0.50 6.00 106.00 155.00 499.50 682.00 1072.50 984.00 804.00 343.50 64.00 j 17.50 4670.50
1999 12.50 20.00 170.00 197.50 452.00 727.00 1005.00 909.50 625.71 b 384.18 c 82.00 j 11.50 4514.89
2000 34.00 27.00 78.50 337.50 632.83 b 864.00 e 1052.00 1055.50 732.00 346.50 12.00 0.00 5171.83
2001 0.00 14.50 117.00 292.80 e 621.00 854.50 1055.00 951.00 765.00 405.67 b 163.50 6.00 5245.97
2002 1.50 10.50 99.00 374.00 569.00 911.00 1106.50 950.00 691.50 277.00 40.00 0.50 5030.50
2003 5.00 13.50 90.50 250.00 610.50 802.50 1152.50 1044.00 676.50 476.00 81.50 17.50 5220.00
2004 0.00 11.50 237.00 264.00 566.50 806.00 998.00 902.00 632.00 334.00 61.50 6.00 4818.50
2005 15.50 10.50 61.50 236.50 556.00 182.50 u 869.50 g 950.50 720.50 395.00 122.00 7.50 3075.50
2006 6.00 15.00 102.50 323.00 640.00 897.50 1111.00 948.00 556.50 294.50 105.00 3.00 5002.00
2007 1.00 35.00 196.50 278.50 550.00 858.00 1109.00 1043.00 737.00 362.00 163.50 5.50 5339.00
2008 0.50 0.00 87.50 190.00 457.00 778.50 1048.50 1001.00 706.50 380.00 106.00 8.50 4764.00
2009 5.50 41.50 137.00 223.50 0.00 z 733.00 1065.00 944.95 c 726.50 267.50 131.50 0.00 4275.95
2010 0.00 h 0.00 44.00 257.88 d 439.50 820.00 1049.50 930.00 728.00 431.00 79.50 26.00 4805.38
2011 0.00 20.50 118.50 243.60 e 416.50 808.00 1085.50 1059.00 725.50 339.00 39.50 9.00 4864.60
2012 0.00 4.50 137.20 d 356.00 617.00 941.00 1092.00 1073.50 747.00 382.00 141.00 21.00 5512.20
2013 1.00 0.50 140.50 22.00 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 142.00
Period of Record Statistics
MEAN 2.37 12.14 75.48 231.13 487.54 748.31 977.47 921.91 655.27 333.36 58.28 4.50 4563.11
S.D. 5.13 13.27 47.54 71.06 80.80 77.10 74.04 61.87 66.82 69.61 39.13 6.77 344.05
SKEW 3.77 1.35 0.87 0.14 -0.08 0.21 -0.90 -0.16 -0.26 -0.06 0.69 1.93 0.59
MAX 34.00 54.50 237.00 415.50 640.00 941.00 1152.50 1073.50 804.00 533.00 163.50 29.50 5512.20
MIN 0.00 0.00 11.50 82.50 302.50 597.50 640.67 692.50 499.00 166.50 5.50 0.00 3880.00
NO YRS 82 86 85 81 83 82 81 83 82 81 80 84 64