COLLBRAN, COLORADO

Monthly Total Growing Degree Days

(051741)

Base Temperature = 50 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 199912
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 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
1894 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
1895 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
1896 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
1897 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
1898 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
1899 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
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 10.50 v 1.50 0.00 1.50
1901 0.00 0.00 0.00 77.50 269.50 387.50 756.50 600.50 315.00 66.50 0.00 a 0.00 b 2473.00
1902 0.00 0.00 0.00 62.50 230.00 504.00 540.50 602.50 310.00 43.00 0.00 0.00 2292.50
1903 0.00 0.00 0.00 38.50 116.00 377.50 562.50 595.00 226.50 29.50 3.00 0.00 1948.50
1904 0.00 4.00 2.00 69.00 168.00 340.00 539.00 536.50 302.50 42.50 0.00 0.00 2003.50
1905 0.00 0.00 0.00 23.50 139.00 438.00 580.00 586.00 304.00 25.50 0.00 0.00 2096.00
1906 0.00 0.00 1.00 25.50 159.50 336.00 520.50 513.50 275.50 56.50 0.00 0.00 1888.00
1907 0.00 0.00 21.00 51.50 89.38 a 267.50 579.70 a 519.00 266.79 b 97.17 e 0.00 j 0.00 a 1892.04
1908 0.00 0.00 1.50 g 37.00 g 73.62 c 254.00 550.00 477.50 309.83 a 66.00 0.00 0.00 1730.95
1909 0.00 0.00 0.00 17.00 81.50 395.50 590.00 551.50 248.00 84.50 2.00 0.00 1970.00
1910 0.00 0.00 16.50 65.00 184.00 451.50 615.00 532.50 349.00 78.53 a 3.50 0.00 2295.53
1911 0.00 0.00 0.00 21.00 189.50 379.50 491.00 501.88 b 324.00 14.50 0.00 0.00 1921.38
1912 0.00 0.00 0.00 1.00 126.50 322.50 492.50 480.50 141.00 32.00 0.00 0.00 1596.00
1913 0.00 0.00 2.50 48.50 225.00 362.00 519.50 572.50 234.00 26.41 d 0.00 0.00 1990.41
1914 0.00 0.00 0.00 38.00 116.00 i 359.00 565.23 a 528.00 367.50 27.50 0.00 a 0.00 1885.23
1915 0.00 0.00 0.00 71.00 136.50 298.00 563.00 531.50 283.45 a 62.00 10.50 0.00 1955.95
1916 0.00 0.00 7.00 57.50 117.00 357.00 598.00 462.50 260.00 37.00 5.50 0.00 1901.50
1917 0.00 0.00 3.00 11.50 50.00 358.50 642.73 a 495.50 306.00 84.50 7.00 0.00 h 1958.73
1918 0.00 0.00 a 0.60 e 4.00 151.50 364.50 h 538.50 510.00 277.80 e 116.77 a 1.50 0.00 1600.66
1919 0.00 0.00 0.00 53.00 242.00 484.14 a 624.13 a 578.50 371.50 28.00 0.00 0.00 2381.27
1920 0.00 0.00 0.00 k 15.50 182.90 a 366.50 588.48 a 525.50 296.90 a 0.00 z 0.00 z 0.00 z 1975.78
1921 0.00 z 0.00 z 0.00 z 11.00 163.50 319.50 527.00 466.00 256.00 66.50 f 0.00 b 0.00 g 1743.00
1922 0.00 a 0.00 e 0.00 9.50 142.00 395.89 b 558.50 559.50 299.00 49.00 0.00 0.00 2013.39
1923 0.00 0.00 0.00 11.50 151.00 319.50 617.00 450.02 a 195.00 20.50 0.00 b 0.00 1764.52
1924 0.00 0.00 0.00 8.50 116.25 c 357.78 c 528.03 a 333.00 i 233.33 c 38.75 e 3.33 c 0.00 b 1285.98
1925 0.00 0.00 0.00 b 36.21 a 261.71 e 388.80 e 651.60 e 437.21 b 275.89 b 40.96 c 0.00 e 0.00 a 2092.38
1926 0.00 a 0.00 b 0.00 c 43.97 a 172.00 423.89 c 0.00 z 0.00 z 0.00 z 33.21 c 0.00 a 0.00 673.07
1927 0.00 0.00 0.00 32.59 a 126.58 a 390.58 d 549.39 d 443.09 b 249.23 d 27.38 a 0.00 b 0.00 1818.84
1928 0.00 a 0.00 a 0.00 29.00 188.58 a 261.43 b 540.36 b 471.09 c 242.00 45.50 0.00 0.00 1777.96
1929 0.00 0.00 0.00 3.00 105.50 339.83 a 584.19 b 549.22 a 0.00 z 45.47 a 0.00 a 0.00 1627.20
1930 0.00 a 0.00 0.00 b 49.20 e 112.67 e 346.73 d 572.98 a 508.83 b 218.04 b 27.38 a 0.00 0.00 1835.83
1931 0.00 0.00 0.00 29.48 a 128.81 b 488.79 a 641.50 565.50 339.50 57.50 f 0.00 0.00 2193.59
1932 0.00 0.00 0.00 c 18.62 a 151.00 328.80 e 579.70 a 497.03 a 196.50 37.00 0.00 d 0.00 1808.65
1933 0.00 0.00 0.00 a 2.07 a 100.50 529.14 a 671.31 b 527.00 371.38 a 71.00 0.00 d 0.00 e 2272.40
1934 0.00 a 0.00 b 2.14 b 86.90 a 313.10 a 377.07 a 707.50 630.69 b 253.45 a 71.50 0.00 0.00 a 2442.34
1935 0.00 0.00 0.00 a 26.50 118.00 304.50 f 630.16 b 539.40 a 268.50 57.19 b 0.00 0.00 a 1639.74
1936 0.00 0.00 0.00 c 47.00 218.79 e 481.03 a 619.50 559.00 259.00 20.00 0.00 0.00 2204.32
1937 0.00 d 0.00 0.00 a 27.00 210.36 c 359.50 596.23 a 540.50 301.50 30.00 0.00 0.00 2065.09
1938 0.00 0.00 0.00 b 60.00 148.05 b 411.00 503.00 512.02 a 257.07 a 88.00 0.00 0.00 1979.14
1939 0.00 a 0.00 0.00 a 53.04 b 205.24 b 353.04 b 603.47 a 525.00 308.50 7.50 0.00 0.00 2055.78
1940 0.00 a 0.00 2.87 d 31.55 a 224.00 459.00 632.83 b 533.72 a 305.69 a 11.88 a 0.00 0.00 2201.54
1941 0.00 0.00 0.00 a 11.00 193.48 b 306.43 b 524.50 490.00 133.50 f 4.00 0.50 0.00 1529.91
1942 0.00 0.00 0.00 a 42.41 a 141.64 b 359.50 557.00 469.13 a 197.14 b 32.07 b 0.54 b 0.00 a 1799.43
1943 0.00 a 0.00 a 13.36 b 101.50 140.00 336.50 566.50 489.50 231.21 a 55.00 0.00 0.00 1933.57
1944 0.00 0.00 0.00 3.50 172.50 295.00 486.50 449.00 216.50 46.00 3.50 0.00 1672.50
1945 0.00 0.00 0.00 9.00 172.50 238.00 539.50 491.50 187.00 56.00 0.00 0.00 1693.50
1946 0.00 0.00 1.50 65.00 95.50 380.00 563.00 498.00 225.50 20.50 0.00 f 0.00 1849.00
1947 0.00 0.00 0.00 17.00 181.00 252.00 545.00 478.50 307.50 81.50 0.00 0.00 1862.50
1948 0.00 0.00 0.00 53.00 232.00 330.00 513.00 430.50 278.00 24.50 0.00 0.00 1861.00
1949 0.00 0.00 n 0.00 k 43.50 133.50 318.50 523.00 519.00 287.00 65.50 0.00 0.00 1890.00
1950 0.00 0.00 0.00 44.00 131.00 419.50 567.00 494.00 261.00 125.00 0.00 0.00 2041.50
1951 0.00 0.00 0.00 24.00 205.50 339.50 667.50 306.50 l 247.50 36.50 0.00 0.00 1520.50
1952 0.00 0.00 0.00 34.00 196.50 496.00 478.50 h 513.29 e 304.50 47.50 1.00 0.00 1592.79
1953 0.00 0.00 15.00 47.50 139.00 492.00 691.50 538.50 413.00 111.00 3.50 0.00 2451.00
1954 0.00 0.00 1.00 89.00 271.50 434.00 705.00 593.50 348.50 141.50 1.00 0.00 2585.00
1955 0.00 0.00 0.00 48.00 187.50 362.00 667.57 b 623.00 405.50 139.00 0.00 d 3.00 2435.57
1956 0.00 0.00 4.00 34.50 273.50 530.50 629.50 521.00 438.00 142.60 a 0.50 0.00 2574.10
1957 0.00 0.00 0.00 21.00 87.00 387.50 595.50 544.50 262.50 106.00 0.00 0.00 e 2004.00
1958 0.00 0.00 0.00 17.00 296.50 506.00 603.00 686.00 337.50 126.00 4.50 0.00 2576.50
1959 0.00 0.00 0.00 64.00 194.00 519.00 632.50 583.50 300.50 42.00 0.00 0.00 2335.50
1960 0.00 0.00 1.50 70.50 186.50 465.50 662.00 616.50 422.50 104.00 3.50 0.00 2532.50
1961 0.00 0.00 5.00 34.29 b 233.50 519.00 635.00 621.50 184.50 70.00 0.00 0.00 j 2302.79
1962 0.00 5.50 0.00 117.00 191.00 445.00 c 632.50 631.50 388.50 141.50 2.00 0.00 2554.50
1963 0.00 0.00 11.50 46.50 326.50 439.50 735.22 a 592.50 457.50 234.50 5.00 0.00 2848.72
1964 0.00 0.00 b 0.00 28.00 233.50 391.00 753.50 561.21 b 356.50 164.50 0.00 0.00 2488.21
1965 0.00 0.00 0.00 42.00 165.50 354.00 593.50 532.00 243.50 129.00 1.00 0.00 2060.50
1966 0.00 0.00 5.00 32.00 258.00 433.00 740.00 582.50 318.00 26.50 0.00 0.00 2395.00
1967 0.00 z 0.00 z 0.00 z 8.00 l 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
1968 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
1969 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
1970 0.00 z 0.00 0.00 5.00 189.00 354.00 575.50 550.50 180.50 36.50 0.00 0.00 1891.00
1971 0.00 0.00 12.00 36.50 122.00 384.50 544.50 522.00 182.50 34.74 b 0.00 0.00 a 1838.74
1972 0.00 0.00 a 4.13 a 32.00 f 133.50 g 396.11 c 498.00 461.12 c 240.00 a 80.08 a 0.00 d 0.00 h 1679.45
1973 0.00 0.00 0.00 0.00 g 68.00 p 292.00 460.00 473.86 c 172.78 c 45.97 b 0.50 0.00 1445.10
1974 0.00 0.00 0.50 m 0.00 z 143.50 f 383.50 518.00 367.00 175.50 16.00 0.00 0.00 b 1460.00
1975 0.00 0.00 0.00 9.31 a 65.00 282.00 532.50 375.00 174.00 39.00 0.00 0.00 1476.81
1976 0.00 0.00 0.00 56.50 210.00 358.00 643.50 499.00 235.50 0.00 z 0.00 0.00 z 2002.50
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 0.00 z 0.00 z 0.00
1978 0.00 z 0.00 z 0.00 z 49.50 203.50 471.50 686.50 578.00 334.00 105.00 4.00 0.00 2432.00
1979 0.00 0.00 0.00 45.00 0.00 z 436.00 643.50 542.00 431.00 137.50 0.00 a 0.00 2235.00
1980 0.00 0.00 0.00 49.00 124.00 510.00 687.00 561.00 341.00 146.39 d 0.50 0.00 2418.89
1981 0.00 b 0.00 a 0.00 a 93.50 159.65 a 472.50 641.00 584.00 358.00 30.48 a 0.00 a 0.00 2339.13
1982 0.00 0.00 0.00 8.50 135.50 363.50 585.50 612.00 299.00 10.50 0.00 0.00 2014.50
1983 0.00 0.00 0.00 9.50 96.00 290.50 539.00 585.00 367.50 29.00 2.00 0.00 1918.50
1984 0.00 0.00 0.00 9.00 219.50 309.00 600.00 582.50 341.50 46.50 0.00 0.00 2108.00
1985 0.00 0.00 i 0.00 43.50 198.00 436.50 604.50 578.00 194.50 9.50 0.00 0.00 2064.50
1986 0.00 0.00 17.50 39.00 134.50 460.50 528.50 549.00 205.50 9.00 0.00 0.00 1943.50
1987 0.00 0.00 0.00 77.50 157.50 431.50 548.00 461.00 249.50 65.00 1.00 0.00 1991.00
1988 0.00 0.00 0.00 19.00 163.00 433.50 569.50 466.00 147.50 58.50 0.00 0.00 1857.00
1989 0.00 0.00 5.00 93.00 169.50 341.00 623.00 452.50 249.00 43.50 0.00 0.00 1976.50
1990 0.00 0.00 4.50 27.50 125.00 514.50 624.50 538.00 376.50 35.50 0.00 0.00 2246.00
1991 0.00 0.00 0.00 15.50 150.50 386.50 592.00 581.50 310.50 133.00 0.00 0.00 2169.50
1992 0.00 0.00 0.00 112.00 250.50 375.50 522.50 494.50 301.00 108.50 0.00 0.00 2164.50
1993 0.00 0.00 14.00 20.00 216.00 384.50 571.50 524.00 283.00 65.00 0.00 0.00 2078.00
1994 0.00 0.00 3.00 79.50 267.50 579.50 712.50 675.50 365.50 35.00 2.00 0.00 2720.00
1995 0.00 0.00 7.00 14.50 l 64.00 309.00 561.50 653.50 366.00 35.00 2.50 0.00 1998.50
1996 0.00 0.00 4.50 45.50 250.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 300.50
1997 0.00 z 0.00 z 0.00 z 19.00 216.00 450.00 569.00 540.00 334.50 77.50 0.00 0.00 2206.00
1998 0.00 0.00 13.00 13.00 175.50 283.00 642.50 610.50 261.50 l 81.00 1.00 0.00 1819.50
1999 0.00 0.00 7.00 29.00 155.52 a 403.50 606.00 540.50 252.22 c 83.00 1.03 a 0.00 2077.77
Period of Record Statistics
MEAN 0.00 0.11 2.36 39.01 172.73 389.25 592.72 533.22 285.40 62.33 0.86 0.03 2109.06
S.D. 0.00 0.71 4.69 26.61 58.52 74.36 64.22 60.30 69.66 43.42 1.77 0.32 288.59
SKEW 0.00 6.73 2.25 0.80 0.30 0.25 0.52 -0.04 0.20 1.22 2.87 9.27 0.38
MAX 0.00 5.50 21.00 117.00 326.50 579.50 756.50 686.00 457.50 234.50 10.50 3.00 2848.72
MIN 0.00 0.00 0.00 1.00 50.00 238.00 460.00 367.00 141.00 4.00 0.00 0.00 1476.81
NO YRS 91 90 88 90 90 92 92 91 90 90 92 89 65