MONTROSE 2, COLORADO

Monthly Total Growing Degree Days

(055722)

Base Temperature = 40 F

File last updated on Jul 24, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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
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 186.50 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 0.00 z 0.00 z 186.50
1904 0.00 a 77.52 c 91.97 a 295.18 b 451.57 a 578.65 d 762.71 b 639.00 f 331.50 l 207.91 b 15.00 0.00 2480.51
1905 0.00 a 0.52 a 68.50 i 169.29 b 202.50 j 617.40 e 772.02 e 755.50 547.00 206.00 25.50 0.00 a 3093.22
1906 3.21 b 12.00 104.00 191.50 391.50 517.20 e 792.50 785.69 b 523.89 c 274.00 84.83 a 10.85 a 3691.16
1907 2.50 q 59.00 n 128.50 g 0.00 z 358.64 b 632.68 b 903.50 833.50 581.90 a 404.50 8.50 0.00 a 3723.21
1908 0.00 42.00 116.77 a 207.50 319.50 625.50 906.50 762.50 533.50 156.00 1.00 0.00 3670.77
1909 3.50 0.00 32.00 200.50 286.00 634.00 865.93 a 826.00 525.50 294.50 73.00 0.00 3740.93
1910 1.00 0.50 147.77 a 249.50 404.00 701.50 801.00 755.50 534.00 178.52 b 49.00 2.50 j 3822.28
1911 38.50 6.50 130.72 a 273.50 556.50 787.00 881.50 906.50 702.50 264.00 36.00 0.00 4583.22
1912 0.00 1.50 47.50 186.00 526.00 744.00 915.00 896.50 495.50 288.00 41.50 0.00 4141.50
1913 0.00 6.00 52.00 283.50 595.50 741.00 926.90 a 968.50 553.50 239.22 a 92.00 0.00 a 4458.12
1914 9.00 1.50 52.50 287.00 545.50 744.00 929.50 883.50 693.00 309.00 72.50 0.00 4527.00
1915 0.00 0.00 73.88 a 359.50 440.50 692.50 969.78 a 905.00 642.50 347.50 103.00 4.50 4538.67
1916 2.50 3.00 160.00 303.50 532.50 815.50 982.00 869.50 610.00 265.00 50.00 7.50 4601.00
1917 0.00 23.00 31.50 201.00 341.00 767.50 1053.50 876.00 641.50 322.00 64.50 12.50 4334.00
1918 0.00 14.00 146.00 171.50 512.00 922.76 a 928.00 891.00 602.00 377.50 36.00 0.00 4600.76
1919 0.00 a 4.00 82.50 301.00 638.00 828.00 1056.00 983.50 727.50 221.50 35.00 0.00 4877.00
1920 0.00 20.50 47.00 143.00 586.00 775.00 980.00 883.00 618.62 a 295.50 24.00 0.50 4373.12
1921 7.50 24.50 179.00 235.00 584.50 816.72 a 992.00 892.50 710.00 451.50 81.72 a 37.50 5012.45
1922 1.50 29.50 78.00 191.50 546.00 875.00 1017.00 970.50 699.00 319.00 29.50 1.55 a 4758.05
1923 1.00 0.00 36.50 228.00 569.50 790.00 1032.50 872.00 573.00 220.00 14.00 2.50 4339.00
1924 0.00 3.50 4.00 205.00 476.00 832.00 962.50 864.50 574.50 315.00 78.00 0.00 4315.00
1925 0.00 0.00 138.00 332.00 683.00 793.50 1032.50 854.00 641.00 284.50 20.00 1.50 4780.00
1926 0.00 6.00 51.00 339.00 549.50 844.00 949.00 937.00 658.50 353.50 34.50 5.50 4727.50
1927 0.00 19.00 65.50 300.00 565.00 787.50 972.50 830.00 633.50 348.00 91.50 0.00 4612.50
1928 11.00 1.50 87.50 216.00 529.50 724.50 990.00 904.00 691.00 357.00 33.00 0.00 4545.00
1929 0.00 0.00 55.00 199.00 498.50 826.00 990.50 929.00 544.00 278.50 0.00 5.00 4325.50
1930 0.00 11.00 42.00 386.00 464.50 827.50 970.50 935.50 653.50 283.00 42.50 0.00 4616.00
1931 0.00 0.00 54.00 292.50 484.63 a 913.00 1112.50 975.50 751.03 a 384.50 75.00 b 0.00 5042.67
1932 0.00 21.50 55.00 253.00 588.00 789.00 1046.00 950.50 656.00 303.50 26.50 8.50 4697.50
1933 0.00 0.00 91.97 a 169.50 412.50 926.50 1098.00 952.50 782.50 460.50 26.00 5.50 4925.47
1934 2.50 22.50 229.00 440.00 743.50 820.00 1133.50 1047.50 647.50 408.00 103.50 3.00 5600.50
1935 0.00 11.00 86.00 282.00 483.00 890.50 1072.50 991.00 687.00 361.00 24.50 0.00 4888.50
1936 0.00 8.50 105.00 359.00 647.50 912.50 1060.50 971.50 607.50 260.50 4.00 0.00 4936.50
1937 0.00 0.00 16.50 230.50 553.50 740.50 951.50 932.00 677.00 312.00 61.50 3.00 4478.00
1938 0.00 7.00 44.50 266.50 442.00 730.00 932.00 1014.50 688.00 348.50 14.00 0.00 4487.00
1939 0.00 0.00 112.50 339.50 624.50 819.83 a 1070.00 977.00 716.00 293.50 47.50 10.00 5010.33
1940 0.00 19.50 134.50 262.00 671.00 889.00 1054.50 956.35 a 699.00 342.50 30.50 0.00 5058.85
1941 0.00 1.50 87.00 177.50 592.00 729.50 979.00 937.50 599.00 300.50 54.00 1.50 4459.00
1942 0.50 1.00 22.00 299.00 509.00 818.79 a 1036.43 a 974.50 684.00 381.00 93.00 2.50 4821.73
1943 6.72 a 21.00 99.00 483.10 a 516.50 788.50 1063.00 954.50 718.50 413.85 a 51.50 0.00 a 5116.17
1944 0.00 1.00 42.00 148.00 540.50 751.00 1003.50 967.50 766.00 440.00 99.50 0.00 4759.00
1945 0.00 11.93 a 48.05 a 191.00 604.50 695.00 1007.00 985.80 a 649.00 376.50 67.00 0.00 4635.78
1946 0.00 9.50 114.50 397.50 432.28 d 869.50 1020.00 942.50 681.50 234.50 20.50 16.00 4738.28
1947 0.00 4.50 91.50 249.00 625.00 708.50 1022.00 894.00 733.97 a 409.00 20.00 0.00 4757.47
1948 0.00 4.00 26.50 303.50 624.00 765.00 967.72 a 906.00 767.00 353.50 19.50 21.50 4758.22
1949 0.00 0.00 77.50 326.50 523.00 734.00 1004.50 921.50 706.50 275.50 69.00 5.00 4643.00
1950 5.50 22.00 60.00 331.00 452.00 798.50 884.50 894.00 666.00 551.00 103.50 2.50 4770.50
1951 11.00 23.50 95.50 269.50 565.50 710.50 1056.00 919.00 695.00 346.50 37.00 9.00 4738.00
1952 6.50 0.00 33.00 277.00 581.77 a 884.00 1039.00 942.00 711.00 414.00 61.50 0.00 4949.77
1953 5.00 5.50 143.00 205.00 389.50 870.00 1085.00 895.00 732.00 364.50 102.50 3.50 4800.50
1954 15.00 42.00 91.00 426.00 666.50 825.00 1064.50 936.00 694.00 412.50 74.00 0.00 5246.50
1955 0.00 0.50 63.00 226.00 502.50 764.00 1051.50 989.50 761.00 402.50 47.50 47.50 4855.50
1956 30.50 13.00 90.00 f 277.50 637.50 947.59 a 1017.00 895.50 778.50 388.50 14.00 5.00 5004.59
1957 5.50 36.00 119.00 240.50 407.00 813.50 995.50 936.00 639.50 366.50 34.00 5.50 4598.50
1958 0.00 49.50 47.00 211.50 690.00 924.00 1026.50 1037.50 698.00 375.50 80.00 7.00 5146.50
1959 0.00 8.00 42.50 286.00 598.50 920.50 1053.00 931.00 650.00 272.50 29.00 0.00 4791.00
1960 0.00 0.00 104.50 281.00 513.00 843.50 1054.50 990.00 754.00 336.00 81.00 0.50 4958.00
1961 0.00 11.50 77.00 230.50 573.50 877.00 987.00 970.00 489.00 299.50 14.50 15.00 4544.50
1962 0.50 47.50 38.50 351.00 525.50 762.00 936.00 926.50 671.50 382.00 87.00 2.00 4730.00
1963 0.00 28.00 95.00 240.00 641.70 a 740.50 1029.50 916.00 745.50 505.00 97.50 0.00 5038.70
1964 2.00 1.50 22.50 188.00 528.00 716.50 1046.50 849.50 605.00 396.50 41.00 9.50 4406.50
1965 6.00 7.00 36.50 237.50 433.50 678.50 934.50 873.50 513.00 362.50 144.00 9.00 4235.50
1966 0.00 0.00 131.00 255.00 583.50 781.00 1056.00 928.00 677.50 288.50 93.50 27.00 4821.00
1967 7.00 11.00 189.00 218.50 449.50 663.00 985.50 894.50 606.00 343.00 52.00 0.00 4419.00
1968 0.00 2.50 66.00 127.50 441.50 780.00 895.50 719.00 516.50 290.50 7.00 0.00 3846.00
1969 6.00 7.00 36.50 271.00 635.50 611.50 976.00 960.50 644.00 113.00 13.50 4.50 4279.00
1970 6.00 11.00 16.50 106.50 533.00 712.50 939.00 923.00 517.50 179.00 49.00 3.00 3996.00
1971 3.00 5.00 123.00 239.00 444.50 816.00 1015.50 979.00 541.00 291.50 19.50 12.00 4489.00
1972 5.00 59.00 215.50 327.00 529.50 827.00 1031.50 947.00 672.00 366.50 4.00 1.50 4985.50
1973 0.00 3.50 38.00 178.00 506.50 735.50 966.00 938.00 617.50 373.50 135.00 8.00 4499.50
1974 0.00 0.00 150.00 174.50 638.50 850.50 1002.50 898.50 663.50 420.50 25.00 0.00 4823.50
1975 7.00 0.50 75.50 180.00 419.50 693.00 1007.00 899.00 662.00 341.00 73.00 5.00 4362.50
1976 0.00 29.00 58.50 263.00 539.50 773.50 1040.50 881.00 639.50 260.50 73.50 0.00 4558.50
1977 0.00 10.00 57.50 351.00 534.50 954.50 1041.00 987.50 741.50 390.50 84.50 16.00 5168.50
1978 0.00 13.00 171.50 332.50 482.50 861.00 1043.00 953.50 670.50 403.50 110.50 0.00 5041.50
1979 0.00 3.00 62.00 298.50 528.50 786.00 1025.00 907.50 779.00 453.50 13.50 0.00 4856.50
1980 12.50 31.00 39.50 266.50 464.00 891.50 1065.00 952.50 688.50 326.50 117.50 29.50 4884.50
1981 0.50 26.50 60.50 426.50 529.50 908.50 1041.00 956.00 739.50 303.00 99.50 0.50 5091.50
1982 2.50 22.00 105.50 243.50 512.00 775.00 1010.00 990.50 674.50 233.00 44.50 0.50 4613.50
1983 0.00 16.00 85.50 182.50 431.00 732.00 998.00 1006.00 757.50 379.50 96.50 0.00 4684.50
1984 0.00 0.00 46.00 193.50 674.00 750.00 1042.50 968.50 706.00 206.00 61.50 0.00 4648.00
1985 0.00 1.50 97.50 314.00 604.00 894.31 a 1023.50 1008.50 553.50 318.50 52.76 a 0.00 4868.07
1986 6.50 79.00 216.00 303.00 541.50 878.50 947.00 957.50 576.50 259.00 34.50 0.50 4799.50
1987 0.00 6.00 51.00 330.50 540.00 864.00 985.00 911.92 a 632.00 419.00 61.50 0.00 4800.92
1988 0.00 a 6.50 90.00 282.50 559.50 918.50 1082.00 1011.00 618.50 475.00 110.50 0.00 5154.00
1989 0.00 32.00 217.00 402.50 635.00 764.50 1037.00 871.00 676.00 346.50 81.50 0.00 5063.00
1990 0.50 19.50 170.50 341.00 501.00 908.50 972.00 908.50 740.00 298.00 80.50 0.00 4940.00
1991 0.00 0.00 64.00 209.00 491.50 766.00 927.00 935.50 641.50 395.00 39.50 0.00 4469.00
1992 0.00 1.50 113.50 409.50 591.50 767.00 876.50 877.50 674.50 429.50 2.50 4.00 4747.50
1993 0.00 4.00 131.00 182.50 537.50 712.00 923.00 855.00 588.50 278.00 9.50 2.00 4223.00
1994 0.50 14.00 127.50 260.00 568.00 883.00 987.50 969.50 661.50 285.50 57.00 2.50 4816.50
1995 0.50 58.50 134.00 173.00 387.50 669.00 871.50 995.00 663.00 287.00 85.50 36.50 4361.00
1996 0.00 30.00 103.50 248.50 655.00 802.50 1035.00 959.50 570.50 319.00 47.00 4.00 4774.50
1997 1.50 7.00 175.50 189.00 547.00 794.00 928.00 883.00 659.00 314.50 40.00 0.00 4538.50
1998 1.50 13.00 123.00 166.50 555.50 720.50 1035.50 973.00 792.00 336.50 74.50 10.85 a 4802.35
1999 4.00 22.00 221.00 206.00 487.73 a 820.50 1027.00 906.00 590.19 d 247.50 h 132.00 6.95 b 4423.37
2000 15.00 23.50 80.50 355.50 656.54 c 806.67 c 992.00 c 969.02 b 670.96 d 365.05 b 4.29 b 0.00 l 4939.02
2001 0.60 e 12.32 c 105.50 307.00 594.50 835.50 995.00 925.50 710.50 371.00 129.00 5.50 4991.92
2002 2.50 5.00 101.50 413.50 577.50 903.50 1090.50 951.00 660.00 253.00 27.00 0.50 4985.50
2003 0.00 11.00 113.00 327.00 595.50 808.50 1162.00 1022.00 639.50 467.50 80.50 8.00 5234.50
2004 1.00 10.50 252.00 311.50 619.00 835.00 1001.50 888.50 616.00 342.50 40.00 3.50 4921.00
2005 16.50 10.00 58.50 271.00 581.00 722.00 1035.50 878.00 662.00 382.50 117.50 5.50 4740.00
2006 6.50 21.00 102.00 379.50 664.50 919.14 a 697.50 j 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2092.64
Period of Record Statistics
MEAN 4.55 13.58 92.33 266.85 535.70 791.28 993.57 923.46 653.87 332.68 55.60 4.80 4685.17
S.D. 19.02 16.20 53.30 76.58 87.64 87.31 72.71 60.86 72.06 76.90 35.48 8.50 339.38
SKEW 8.71 1.93 0.89 0.43 -0.35 -0.41 -0.88 -0.84 -0.32 -0.09 0.39 2.90 -0.68
MAX 186.50 79.00 252.00 483.10 743.50 954.50 1162.00 1047.50 792.00 551.00 144.00 47.50 5600.50
MIN 0.00 0.00 4.00 106.50 286.00 517.20 762.71 719.00 489.00 113.00 0.00 0.00 3670.77
NO YRS 103 102 100 102 102 103 102 101 101 101 102 100 95