FT LEWIS, COLORADO

Monthly Total Growing Degree Days

(053016)

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
1915 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
1916 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
1917 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 288.50 t 674.50 520.00 98.00 m 47.68 b 0.00 d 1242.18
1918 1.66 c 0.00 a 36.88 b 53.89 c 282.00 759.11 b 559.00 g 710.50 465.00 b 266.00 16.07 b 0.00 a 2591.11
1919 0.00 0.00 8.78 a 156.60 e 389.64 b 525.50 h 617.00 g 0.00 z 396.50 g 23.50 f 4.80 e 0.00 b 559.82
1920 2.58 a 0.00 z 0.00 z 0.00 z 511.50 d 714.23 d 0.00 z 673.22 a 469.00 179.50 7.50 l 0.00 z 2550.03
1921 0.00 7.50 55.50 83.50 314.65 a 585.00 786.50 695.95 a 489.50 315.50 22.24 a 4.50 3360.34
1922 0.00 0.50 3.00 64.50 342.07 b 676.00 831.32 a 766.73 a 586.07 b 233.00 4.00 0.00 3507.19
1923 0.00 0.00 b 3.50 75.00 353.40 a 532.76 a 826.00 662.50 359.00 105.00 0.00 a 0.00 2917.16
1924 0.00 0.00 0.00 68.00 135.50 383.00 f 706.50 655.50 428.00 128.50 41.00 0.00 2163.00
1925 0.00 0.50 22.00 141.21 a 391.00 524.50 750.00 606.00 412.00 139.00 2.00 0.00 a 2988.21
1926 0.00 0.00 10.00 o 101.79 b 296.50 618.00 741.00 765.00 501.50 260.50 8.50 5.50 3298.29
1927 1.50 0.00 7.00 139.50 312.50 536.00 728.00 626.00 417.93 a 189.00 51.50 0.00 3008.93
1928 0.00 0.00 32.00 86.50 343.50 468.00 718.50 653.00 501.50 243.50 14.50 0.00 3061.00
1929 0.00 0.00 j 9.00 53.50 298.00 575.00 794.00 691.50 419.00 233.50 2.00 1.00 3076.50
1930 0.00 0.00 3.50 214.00 164.00 i 590.50 735.50 698.50 424.00 135.50 21.50 0.00 2823.00
1931 1.50 0.00 10.50 102.00 272.00 590.50 775.50 708.00 506.50 240.50 48.00 0.00 3255.00
1932 0.00 1.50 2.00 112.50 293.00 502.00 758.00 719.00 483.00 164.00 11.50 0.00 3046.50
1933 0.00 0.00 24.50 39.00 185.00 582.00 703.00 596.00 458.00 136.00 7.50 0.00 2731.00
1934 0.00 12.50 49.00 188.00 508.00 535.50 830.50 799.50 434.50 268.50 59.50 0.00 3685.50
1935 1.00 1.00 5.50 71.50 208.00 558.00 758.50 720.50 508.50 208.00 6.00 0.00 3046.50
1936 0.00 0.00 9.50 186.50 395.50 671.50 807.00 732.00 434.00 179.00 16.00 0.00 3431.00
1937 0.00 0.00 0.00 56.00 390.50 574.00 762.17 b 779.50 540.50 240.00 27.00 0.00 3369.67
1938 0.00 0.00 5.00 156.50 301.50 570.50 685.62 a 674.00 514.50 196.00 0.00 0.00 3103.62
1939 0.00 0.00 24.50 131.00 324.50 551.00 752.50 739.00 562.00 162.50 35.50 22.00 3304.50
1940 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
1941 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
1942 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
1943 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
1944 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
1945 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
1946 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
1947 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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 666.50 a 504.00 172.50 1.50 0.00 1344.50
1949 0.00 0.00 0.00 121.50 212.00 434.00 687.00 614.83 a 482.00 140.00 31.50 0.00 2722.83
1950 0.00 0.00 3.50 82.00 198.06 d 493.39 b 665.50 625.00 370.00 342.50 21.00 0.00 2800.95
1951 0.00 1.00 7.50 66.50 280.50 398.28 a 724.00 619.00 394.00 126.50 0.00 0.00 2617.28
1952 0.00 0.00 0.50 94.00 314.50 536.00 728.00 690.50 478.50 226.50 9.00 0.00 c 3077.50
1953 0.00 0.00 29.50 70.50 183.79 c 531.50 741.00 612.00 449.00 155.00 24.50 0.00 c 2796.79
1954 0.00 0.00 1.66 c 135.00 298.50 453.62 a 708.50 597.50 500.50 284.50 15.50 0.00 2995.28
1955 0.00 0.00 0.50 61.50 217.50 427.76 a 661.00 702.84 b 463.39 b 239.50 3.50 0.00 2777.50
1956 3.50 0.00 26.50 65.17 a 320.85 a 621.00 700.00 605.02 a 544.50 237.15 a 3.75 b 0.00 3127.44
1957 0.00 a 0.50 10.91 d 51.50 201.00 0.00 z 681.00 631.22 b 382.50 149.00 2.00 0.00 2109.63
1958 0.00 5.50 0.00 50.69 a 364.00 578.04 b 674.00 747.00 480.00 243.00 19.50 0.53 b 3162.26
1959 0.00 0.00 1.50 110.00 250.21 c 609.00 747.00 673.50 415.50 150.50 8.50 0.00 2965.71
1960 0.00 0.00 12.50 111.00 247.48 a 594.50 802.50 773.50 585.00 173.50 22.50 0.00 3322.48
1961 0.00 0.00 5.00 69.00 332.00 669.00 767.50 725.00 336.00 147.00 0.00 0.00 3050.50
1962 0.00 1.00 5.00 160.00 270.00 562.50 744.00 733.50 522.50 243.00 35.50 0.00 3277.00
1963 0.00 7.50 30.50 86.50 416.00 515.50 845.00 726.50 591.00 357.50 28.00 0.00 3604.00
1964 0.00 0.00 5.00 47.50 305.00 518.50 820.00 671.50 449.00 274.50 10.00 0.00 3101.00
1965 0.00 0.00 5.50 101.50 214.00 436.67 c 762.50 655.28 b 375.00 273.00 50.00 0.00 2873.44
1966 0.00 0.00 38.00 120.50 359.50 546.67 c 859.22 a 734.91 b 502.24 a 212.57 c 25.00 0.00 a 3398.61
1967 0.00 0.00 50.00 28.50 i 287.27 a 465.58 d 664.00 f 354.50 m 491.79 b 164.00 k 35.00 g 0.00 a 1294.63
1968 0.00 c 0.00 a 8.27 a 32.14 b 233.02 a 564.31 a 764.09 d 574.53 a 423.60 e 237.84 b 1.11 c 0.00 a 2838.92
1969 0.00 0.00 b 6.50 127.24 a 392.50 446.67 c 803.93 a 773.34 c 498.62 a 71.62 b 3.00 0.00 a 3123.42
1970 0.00 0.00 1.03 a 25.00 331.00 517.24 a 781.20 a 781.20 a 366.72 a 91.50 0.00 0.00 2894.90
1971 0.52 a 0.00 48.00 73.97 a 213.38 a 573.50 789.50 674.50 0.00 z 0.00 z 10.34 a 2.58 a 2386.29
1972 0.00 3.50 95.58 a 85.00 297.27 c 580.96 d 464.00 m 679.50 431.11 c 224.00 0.00 0.00 2396.92
1973 0.00 0.00 0.00 35.00 286.23 a 499.00 720.00 700.00 363.00 114.00 h 37.50 0.00 2640.73
1974 0.00 0.00 a 24.00 73.97 a 393.59 c 705.00 718.88 b 644.00 441.72 a 260.73 c 0.00 b 0.00 a 3261.89
1975 0.00 0.00 a 0.00 42.41 a 235.60 a 455.00 734.00 658.00 442.76 a 222.68 a 27.22 c 0.00 a 2817.68
1976 0.00 a 0.00 12.92 a 105.52 a 327.71 c 535.00 782.48 b 662.37 a 488.79 a 131.50 22.00 0.00 a 3068.29
1977 0.00 0.00 a 4.00 179.00 252.50 670.50 796.00 753.50 501.00 254.50 26.38 a 0.00 3437.38
1978 0.00 a 0.00 32.00 100.18 b 249.55 a 555.50 780.00 686.50 492.41 a 277.45 a 30.00 0.00 3203.59
1979 0.00 0.00 0.00 122.50 289.50 536.50 753.76 d 660.82 a 556.03 a 281.77 c 0.00 0.00 3200.88
1980 0.00 0.00 0.00 99.50 224.50 605.50 818.00 710.93 a 490.86 a 209.50 66.21 a 3.50 3228.50
1981 0.00 1.50 2.00 188.00 282.00 649.66 a 782.50 706.50 505.50 144.00 19.14 a 0.00 z 3280.79
1982 0.00 0.00 1.00 75.50 244.50 500.00 0.00 z 0.00 z 471.00 75.00 i 0.00 0.00 1292.00
1983 0.00 0.00 4.00 38.00 223.50 463.50 738.00 770.00 549.50 189.50 47.00 0.00 3023.00
1984 0.00 0.00 1.50 62.50 447.50 546.00 819.50 725.50 499.00 94.50 13.00 0.00 3209.00
1985 0.00 0.00 3.50 151.00 305.50 622.50 799.00 740.00 372.00 170.50 12.00 0.00 3176.00
1986 0.00 17.50 78.50 106.50 291.00 580.00 676.50 749.00 359.50 124.50 2.00 0.00 2985.00
1987 0.00 0.00 0.00 158.00 308.50 606.00 722.00 682.50 452.00 249.00 17.00 1.00 3196.00
1988 0.00 1.50 15.00 117.00 324.50 657.00 779.00 717.50 451.00 291.00 33.00 0.00 3386.50
1989 0.00 0.00 72.50 233.50 362.50 569.50 802.50 679.00 533.00 188.50 16.00 0.00 3457.00
1990 0.00 0.00 46.50 143.00 156.50 k 649.66 a 754.50 674.00 386.00 i 129.00 i 13.00 l 0.00 2267.66
1991 0.00 0.00 0.00 68.00 281.00 505.50 745.50 763.00 491.50 271.00 14.00 0.00 3139.50
1992 0.00 0.00 5.00 214.50 345.50 502.00 668.50 691.00 458.00 224.00 0.00 0.00 3108.50
1993 0.00 b 0.00 12.50 95.69 a 373.50 476.00 726.00 705.50 430.00 171.00 0.00 0.00 2990.19
1994 0.00 0.00 32.50 154.00 349.00 682.50 816.50 825.00 531.00 161.50 11.50 0.00 3563.50
1995 0.00 13.50 53.50 56.50 210.50 492.50 758.00 860.00 547.00 210.59 b 32.50 2.00 3236.59
1996 0.00 2.50 14.00 129.50 423.00 672.00 866.50 801.00 448.50 236.00 12.50 0.00 3605.50
1997 0.00 2.00 49.50 100.00 375.00 559.50 793.00 738.00 583.00 148.00 k 13.50 0.00 k 3213.50
1998 0.00 0.00 39.50 64.00 190.50 l 463.00 874.50 783.00 644.00 192.00 19.50 5.00 3084.50
1999 0.00 h 0.00 e 55.44 e 94.50 h 186.50 k 182.00 u 801.19 b 716.32 c 453.46 d 283.28 b 103.85 d 0.00 f 2413.54
2000 6.50 g 3.62 e 8.61 d 159.00 g 335.50 h 674.46 b 833.12 c 838.11 c 574.82 b 188.30 d 0.00 f 0.00 c 3121.05
2001 0.00 a 0.00 f 19.78 b 162.60 e 350.50 f 517.50 f 652.50 g 728.50 e 567.00 e 250.38 e 30.50 l 0.00 c 1728.26
2002 0.00 0.00 34.50 165.50 370.50 780.50 904.00 485.00 l 546.00 158.00 5.00 0.00 2964.00
2003 0.00 0.00 15.50 93.50 g 413.00 555.50 920.00 794.50 466.00 301.50 4.50 0.00 3470.50
2004 0.00 0.00 55.69 d 37.50 119.50 482.00 694.50 518.73 a 440.00 168.50 17.00 0.00 2533.42
2005 0.00 0.00 2.00 126.00 378.50 506.00 852.00 672.00 496.00 219.50 20.00 0.00 3272.00
2006 0.00 0.00 9.00 155.00 396.50 654.50 813.00 696.00 334.50 146.50 25.00 0.00 3230.00
2007 0.00 0.00 84.50 128.50 337.50 642.00 829.00 788.50 496.50 203.50 68.50 0.00 3578.50
2008 0.00 0.00 11.00 68.00 262.50 545.50 783.00 736.00 486.00 219.50 38.00 0.00 3149.50
2009 0.00 1.50 48.50 86.00 0.00 z 0.00 z 0.00 z 102.00 z 499.50 127.50 53.50 0.00 816.50
2010 0.00 0.00 8.00 135.50 0.00 z 624.50 824.50 733.50 592.50 286.50 36.00 0.00 l 3241.00
2011 0.00 0.00 23.50 120.00 a 269.00 573.00 859.73 a 857.50 564.00 217.00 3.00 0.00 3486.73
2012 0.00 0.00 84.00 190.00 f 416.50 742.50 878.50 864.00 580.50 270.50 52.00 0.00 3888.50
2013 0.00 0.00 0.00 n 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
Period of Record Statistics
MEAN 0.14 1.03 19.86 104.08 307.14 566.59 770.82 706.81 478.46 207.40 20.13 0.57 3145.71
S.D. 0.55 3.00 23.21 47.54 77.63 81.35 58.67 66.67 65.92 60.61 19.74 2.61 256.36
SKEW 4.34 3.82 1.40 0.56 0.14 0.37 0.21 0.07 -0.08 0.04 1.45 7.01 -0.06
MAX 3.50 17.50 95.58 233.50 511.50 780.50 920.00 864.00 644.00 357.50 103.85 22.00 3685.50
MIN 0.00 0.00 0.00 25.00 119.50 398.28 661.00 518.73 334.50 71.62 0.00 0.00 2533.42
NO YRS 85 84 84 80 78 80 78 83 85 80 83 83 61