FT COLLINS, COLORADO

Monthly Total Growing Degree Days

(053005)

Base Temperature = 50 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
1893 3.00 0.00 14.00 41.38 a 0.00 z 0.00 z 0.00 z 522.50 0.00 z 0.00 z 0.00 z 0.00 z 580.88
1894 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 391.00 0.00 z 0.00 z 276.50 102.00 7.50 0.00 a 777.00
1895 0.00 0.00 16.50 71.00 150.00 287.00 475.00 540.00 361.03 a 53.22 a 5.50 0.00 1959.25
1896 0.00 0.00 16.50 59.48 a 239.00 460.00 626.50 582.80 a 278.50 45.00 6.00 0.00 2313.78
1897 0.00 0.00 b 0.00 a 33.50 266.82 c 397.78 c 521.50 525.50 411.00 81.50 13.00 1.50 2252.10
1898 0.00 0.00 0.00 51.50 139.00 422.00 591.50 618.00 289.00 48.00 5.50 0.00 2164.50
1899 0.00 0.00 0.00 50.50 154.00 407.50 527.00 548.00 343.50 36.50 0.00 0.00 2067.00
1900 0.00 0.00 7.50 16.50 250.50 512.50 555.00 557.50 288.00 77.50 0.50 0.00 2265.50
1901 0.00 0.00 4.50 77.00 222.00 398.50 696.00 587.50 278.00 33.50 0.50 3.00 2300.50
1902 0.00 0.00 0.00 31.50 194.00 409.00 497.00 579.50 194.50 f 42.00 0.00 0.00 1753.00
1903 4.00 0.00 0.00 37.00 94.00 283.00 572.00 562.50 241.00 57.00 0.00 0.00 1850.50
1904 0.00 16.50 2.00 44.50 150.00 297.00 485.50 529.50 279.00 60.00 7.00 0.00 1871.00
1905 0.00 0.00 2.00 28.50 121.50 442.50 485.00 566.50 315.00 44.00 0.00 0.00 2005.00
1906 0.00 0.00 0.50 37.50 177.50 355.00 463.00 532.50 266.50 64.50 2.00 0.00 1899.00
1907 0.00 0.00 49.08 a 33.50 103.50 322.50 551.00 524.00 282.00 39.00 0.00 0.00 1904.58
1908 0.00 0.00 e 33.50 58.00 126.00 343.50 546.00 479.00 382.50 83.50 0.00 0.00 2052.00
1909 0.00 0.00 0.00 19.00 105.00 429.50 630.50 629.00 269.00 90.00 11.50 0.00 2183.50
1910 0.00 0.00 a 31.50 78.00 165.50 437.00 644.00 535.00 345.50 127.50 0.00 0.00 2364.00
1911 5.50 0.00 16.00 42.00 222.00 484.00 507.50 504.00 348.50 56.00 0.00 0.00 2185.50
1912 0.00 0.00 0.00 11.50 164.50 275.00 487.50 492.00 139.50 25.00 0.00 0.00 a 1595.00
1913 0.00 a 0.00 6.00 42.00 186.00 397.00 522.00 610.00 226.00 38.00 0.50 0.00 2027.50
1914 0.00 0.00 0.00 24.00 182.50 397.00 567.00 527.50 332.00 71.00 0.50 0.00 2101.50
1915 0.00 0.00 0.00 65.00 115.00 296.00 456.00 397.00 223.00 59.50 9.50 0.00 1621.00
1916 0.00 0.00 29.50 34.50 136.00 358.50 602.00 481.50 240.50 36.00 0.00 0.00 1918.50
1917 0.00 1.00 2.07 a 10.50 60.00 380.50 620.50 467.50 294.00 83.50 2.50 0.00 1922.07
1918 0.00 0.00 7.00 1.50 163.50 514.50 532.50 513.00 164.50 112.50 0.00 0.00 2009.00
1919 0.00 0.00 1.00 45.50 164.00 434.50 662.00 565.50 350.00 12.00 0.00 a 0.00 2234.50
1920 6.50 0.00 0.00 a 1.00 169.50 366.50 583.00 497.00 263.00 89.00 1.00 0.00 1976.50
1921 2.50 0.00 24.50 35.50 181.50 451.00 592.50 553.50 298.50 120.00 0.00 8.27 a 2267.77
1922 0.00 0.00 0.00 14.00 189.50 494.00 569.50 659.50 369.50 70.50 0.00 0.00 2366.50
1923 0.50 0.00 0.00 18.00 165.00 374.00 622.00 524.50 232.50 b 34.00 0.00 0.00 1970.50
1924 0.00 0.00 0.00 20.50 98.50 422.50 570.50 573.50 220.00 62.00 3.50 0.00 1971.00
1925 0.00 0.00 8.50 77.50 251.00 478.50 648.00 519.50 333.00 33.50 0.00 0.00 2349.50
1926 0.00 0.00 0.00 48.00 194.00 420.50 536.50 571.50 279.00 109.00 0.00 0.00 2158.50
1927 0.00 0.00 0.00 51.00 214.50 363.00 546.50 439.00 314.50 72.00 9.50 0.00 2010.00
1928 0.50 0.00 2.00 36.72 a 214.50 226.00 554.00 502.50 261.00 70.00 0.00 0.00 1867.22
1929 0.00 0.00 1.50 31.00 134.50 410.50 634.00 618.50 217.00 72.00 0.00 0.00 a 2119.00
1930 0.00 0.00 0.00 91.50 113.00 441.00 629.00 566.00 282.00 46.50 0.00 0.00 2169.00
1931 0.00 0.00 0.00 a 56.50 158.00 536.00 681.00 566.50 404.50 91.50 3.10 a 0.00 2497.10
1932 0.00 2.00 0.50 67.00 222.50 404.00 677.50 603.50 291.50 65.00 2.50 0.00 2336.00
1933 0.00 0.00 2.00 28.33 c 186.00 565.50 684.50 534.50 386.00 105.00 5.50 6.50 2503.83
1934 0.00 0.50 15.50 75.00 295.00 f 485.00 730.05 a 624.00 216.50 118.50 18.50 0.00 2283.55
1935 0.00 0.00 14.50 30.00 66.00 403.50 679.50 605.50 295.50 71.50 0.00 0.00 2166.00
1936 0.00 0.00 0.00 93.50 299.00 532.00 731.50 615.00 357.50 65.50 0.00 0.00 2694.00
1937 0.00 0.00 0.00 a 34.00 240.00 399.00 669.08 a 687.50 387.50 80.00 0.00 0.00 2497.08
1938 0.00 0.00 7.00 83.50 171.00 439.50 616.00 651.50 382.00 145.04 c 0.50 0.00 2496.04
1939 0.00 0.00 22.50 92.00 303.50 461.50 734.50 580.00 418.00 69.00 2.50 6.00 2689.50
1940 0.00 10.00 13.78 d 68.00 261.50 546.50 699.71 c 597.50 394.00 90.00 0.00 0.00 2680.99
1941 0.00 0.00 0.00 7.24 a 247.00 379.00 594.00 546.50 244.00 22.50 4.00 0.00 2044.24
1942 0.00 0.00 0.00 53.50 153.50 384.31 a 614.00 544.50 268.50 90.50 1.50 0.00 a 2110.31
1943 10.50 0.00 16.50 84.00 138.00 393.50 655.50 640.50 274.50 51.00 0.00 0.00 2264.00
1944 0.00 0.00 0.00 6.00 216.00 398.00 587.50 621.00 283.00 55.50 6.00 0.00 2173.00
1945 0.00 0.00 3.00 32.50 188.00 265.50 614.50 574.00 271.00 87.00 13.50 1.50 2050.50
1946 0.00 0.00 16.02 a 129.50 99.50 453.00 645.50 554.38 a 278.50 42.50 0.00 0.00 2218.90
1947 0.50 0.00 0.00 28.50 163.50 329.50 615.50 620.50 403.50 169.50 0.00 0.00 2331.00
1948 0.00 0.00 7.50 79.50 224.23 a 438.00 624.50 579.50 426.50 57.50 0.00 0.00 2437.23
1949 0.00 0.00 0.00 94.00 196.50 408.50 629.00 591.50 297.50 41.00 24.00 0.00 2282.00
1950 0.00 0.00 5.50 51.50 127.00 442.50 519.50 475.50 264.50 127.50 0.00 0.00 2013.50
1951 0.00 8.00 0.00 22.00 183.00 285.00 637.50 527.00 264.50 36.50 0.00 0.00 1963.50
1952 0.00 0.00 0.00 36.50 193.00 565.00 613.50 581.50 359.00 48.50 0.00 0.00 2397.00
1953 0.00 0.00 8.00 52.50 161.50 525.50 663.00 566.50 364.00 98.00 6.00 0.00 2445.00
1954 0.00 5.00 5.00 119.00 237.50 516.00 765.00 608.00 385.00 112.00 1.50 0.00 2754.00
1955 0.00 0.00 0.00 80.00 243.00 363.50 713.50 656.00 344.00 96.00 3.00 2.00 2501.00
1956 0.00 0.00 14.50 22.50 262.50 594.00 622.00 520.00 379.50 110.00 7.00 0.00 2532.00
1957 0.00 0.00 0.00 21.50 118.00 443.00 670.50 612.50 256.50 88.00 0.00 0.00 2210.00
1958 0.00 0.00 0.00 20.00 317.00 506.00 556.00 669.50 378.50 142.00 2.00 0.00 2591.00
1959 0.00 0.00 0.00 66.50 179.00 535.50 651.00 659.00 282.00 28.50 0.00 0.00 2401.50
1960 0.00 0.00 10.00 78.50 200.50 509.00 648.00 611.50 374.00 87.00 5.50 0.00 a 2524.00
1961 0.00 3.50 0.00 52.50 209.00 456.50 609.00 618.50 193.50 63.50 0.00 0.00 2206.00
1962 0.00 4.00 2.58 a 86.00 244.50 392.00 576.50 561.50 296.50 107.00 5.00 0.00 2275.58
1963 0.00 7.50 10.00 35.50 269.50 503.00 725.50 588.00 420.00 177.00 0.00 0.00 2736.00
1964 0.00 0.00 0.00 35.50 265.00 414.00 740.00 528.00 294.00 72.50 1.00 14.50 2364.50
1965 0.00 0.00 0.00 67.00 199.50 398.00 641.50 534.50 183.00 119.00 1.00 0.00 2143.50
1966 0.00 0.00 13.00 33.00 300.00 443.50 768.50 550.00 353.00 63.00 2.00 0.00 2526.00
1967 0.00 4.00 31.50 59.50 164.50 313.00 621.50 550.50 306.00 124.00 3.00 0.00 2177.50
1968 0.00 0.00 13.00 17.00 125.50 513.50 638.50 524.00 265.00 82.00 0.00 0.00 2178.50
1969 0.00 0.00 2.00 92.50 247.50 314.50 696.00 669.50 365.00 20.50 0.00 0.00 2407.50
1970 0.00 0.00 0.00 27.00 60.00 z 440.50 656.50 667.50 270.50 51.00 6.50 0.00 2119.50
1971 7.50 0.00 18.00 52.50 158.00 532.00 590.00 632.50 248.50 70.50 3.50 0.00 2313.00
1972 0.00 8.00 46.00 57.50 211.50 528.50 572.50 571.00 307.00 108.50 0.00 0.00 2410.50
1973 0.00 0.00 0.00 11.50 206.00 503.00 585.00 657.00 270.50 111.00 4.00 0.00 2348.00
1974 0.00 0.00 21.50 59.00 322.50 499.00 693.00 510.50 256.50 101.00 0.00 0.00 2463.00
1975 0.00 0.00 7.50 43.50 135.50 406.50 670.50 594.50 284.00 129.50 10.50 6.50 2288.50
1976 0.00 0.00 8.00 43.00 201.50 446.00 697.50 569.00 320.50 65.00 1.00 0.00 2351.50
1977 0.00 1.50 0.00 96.00 299.00 637.00 708.50 562.50 436.00 82.00 2.50 6.00 2831.00
1978 0.00 0.00 38.50 50.50 209.00 493.50 694.50 559.50 405.50 85.50 8.00 0.00 2544.50
1979 0.00 0.00 2.50 71.90 a 194.00 450.00 678.00 530.00 413.00 160.50 0.00 0.00 2499.90
1980 0.00 0.00 0.00 61.50 161.00 575.50 730.00 597.50 376.50 107.50 25.00 9.00 2643.50
1981 0.00 4.00 0.50 160.50 172.50 559.50 684.00 575.50 437.50 78.00 10.00 0.00 2682.00
1982 0.00 7.00 6.00 48.50 184.50 353.50 650.00 674.50 290.00 44.50 0.00 0.00 2258.50
1983 0.00 0.00 1.00 26.00 132.50 373.50 676.50 737.00 397.00 76.00 13.50 0.00 2433.00
1984 0.00 0.00 0.00 8.00 290.50 428.50 696.00 645.50 337.50 54.00 6.50 1.00 2467.50
1985 0.00 0.00 5.00 121.00 301.00 481.50 660.00 606.00 302.00 39.00 3.00 0.00 2518.50
1986 0.00 5.50 38.50 63.50 212.50 550.00 653.00 598.00 268.50 33.50 0.00 0.00 2423.00
1987 5.00 2.00 0.00 142.50 263.50 513.00 673.00 563.50 308.50 82.00 6.50 1.00 2560.50
1988 0.00 0.00 10.50 69.50 276.50 606.00 670.50 645.50 307.50 137.50 9.00 0.00 2732.50
1989 0.00 0.00 21.00 139.50 264.00 419.00 707.50 570.00 330.50 116.00 16.50 0.00 2584.00
1990 0.00 0.00 3.00 54.00 179.50 583.00 591.50 589.00 443.50 92.50 14.00 0.00 2550.00
1991 0.00 0.00 8.50 39.00 279.00 484.50 636.50 608.50 326.00 151.50 2.00 0.00 2535.50
1992 0.00 5.00 1.00 116.00 282.50 424.50 554.00 490.50 382.00 137.00 0.00 0.00 2392.50
1993 0.00 0.00 7.00 41.00 257.50 422.50 609.50 536.50 249.00 77.00 0.00 0.00 2200.00
1994 0.00 0.00 15.50 102.50 342.00 595.50 635.50 628.50 398.00 67.50 8.50 0.00 2793.50
1995 0.00 3.50 27.00 30.00 79.00 384.50 629.50 717.50 339.50 76.00 16.00 0.00 2302.50
1996 0.00 0.00 0.00 84.00 258.00 510.00 668.50 589.00 312.00 137.50 6.50 0.00 2565.50
1997 3.50 0.00 24.00 47.00 246.00 511.50 662.00 587.00 397.50 132.50 2.00 0.00 2613.00
1998 0.00 0.00 38.50 51.00 302.00 398.50 713.50 653.00 493.00 59.50 4.50 0.00 2713.50
1999 0.00 0.50 18.50 36.50 214.00 440.50 721.50 630.00 270.50 82.50 19.00 0.00 2433.50
2000 0.00 0.00 6.50 113.50 360.00 490.00 759.50 697.00 405.50 81.50 0.00 0.00 2913.50
2001 0.00 0.00 4.50 104.50 259.50 552.00 761.00 676.00 421.50 91.50 12.50 0.00 2883.00
2002 0.00 4.50 1.00 130.50 214.00 639.50 810.50 632.00 381.00 42.50 3.00 0.00 2858.50
2003 0.00 8.00 22.00 97.00 285.50 403.00 829.50 704.50 297.50 217.00 0.50 0.00 2864.50
2004 0.00 0.00 55.00 95.50 340.50 415.00 633.50 526.50 356.00 68.00 5.50 0.00 2495.50
2005 0.00 0.00 14.50 53.50 264.00 486.00 784.00 622.00 416.50 105.00 19.00 0.00 2764.50
2006 0.00 5.50 10.50 141.00 343.00 648.00 774.00 671.50 256.50 87.50 16.50 2.00 2956.00
2007 0.00 0.00 55.00 73.00 266.50 557.00 796.00 716.00 406.00 118.00 15.00 5.50 3008.00
2008 0.00 0.00 6.00 66.00 0.00 z 484.00 756.00 585.50 306.00 95.00 30.50 0.00 2329.00
2009 6.00 0.00 34.00 63.00 303.50 412.00 622.00 576.50 375.00 27.50 17.50 0.00 2437.00
2010 0.00 0.00 14.50 49.50 200.50 545.50 718.00 697.50 444.50 150.50 13.50 0.00 2834.00
2011 0.00 0.00 29.50 46.50 143.00 523.00 768.50 753.50 373.50 145.00 0.00 0.00 2782.50
2012 1.00 2.50 107.00 164.50 333.50 679.50 805.50 706.50 438.50 90.00 6.00 0.00 3334.50
2013 0.00 0.00 15.50 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 15.50
Period of Record Statistics
MEAN 0.47 1.00 10.44 57.25 206.14 447.23 639.45 584.98 321.68 81.87 4.56 0.62 2356.98
S.D. 1.64 2.55 15.56 34.89 66.93 87.87 80.79 64.57 68.47 37.53 6.30 2.11 307.34
SKEW 3.95 3.25 2.83 0.90 0.14 0.10 -0.04 0.15 0.01 0.69 1.72 4.13 0.20
MAX 10.50 16.50 107.00 164.50 360.00 679.50 829.50 753.50 493.00 217.00 30.50 14.50 3334.50
MIN 0.00 0.00 0.00 1.00 60.00 226.00 456.00 397.00 139.50 12.00 0.00 0.00 1595.00
NO YRS 120 120 120 119 115 119 118 119 118 119 119 119 114