COLVILLE BASIC, WASHINGTON

Monthly Total Growing Degree Days

(451630)

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
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 718.50 335.00 278.00 41.00 1372.50
1900 0.00 z 3.50 125.50 318.50 446.00 688.50 788.50 629.00 426.00 209.77 a 6.00 23.50 3664.77
1901 0.00 2.50 43.50 110.50 478.50 436.50 740.00 831.50 400.50 325.00 24.00 2.00 3394.50
1902 4.00 3.50 25.00 166.50 462.00 506.00 665.50 666.00 438.10 a 347.00 7.50 0.00 3291.10
1903 0.00 0.00 62.50 137.00 444.50 760.00 716.00 775.00 387.00 183.50 31.00 0.00 3496.50
1904 0.50 0.00 12.00 264.50 428.50 591.00 803.00 773.50 487.50 203.00 43.00 0.00 3606.50
1905 9.00 11.00 107.50 257.00 395.50 580.00 800.00 781.00 540.00 92.50 3.00 0.00 3576.50
1906 0.00 2.00 53.00 359.50 479.50 547.50 986.50 777.00 500.50 251.00 23.50 0.00 3980.00
1907 0.00 2.50 35.00 151.50 481.50 576.50 827.00 651.50 504.50 305.50 26.00 0.00 3561.50
1908 0.00 4.00 52.50 268.00 408.00 630.50 858.50 748.50 545.00 200.50 82.50 0.00 3798.00
1909 4.00 1.50 44.50 125.50 399.00 626.50 745.50 734.00 559.14 a 236.63 a 50.00 0.00 3526.27
1910 1.50 1.50 157.07 a 357.00 560.00 563.00 846.00 629.50 497.00 282.00 39.00 1.00 3934.57
1911 0.00 0.00 110.00 210.50 396.28 a 686.50 856.00 715.00 460.00 156.50 3.00 0.00 3593.78
1912 0.00 2.00 55.50 251.00 493.33 b 176.50 v 771.50 702.00 409.00 125.00 20.50 0.00 2829.83
1913 0.00 0.00 31.00 b 225.00 453.00 670.50 771.00 797.50 453.50 106.00 16.00 0.00 a 3523.50
1914 2.50 5.50 106.00 273.00 516.00 611.50 891.00 796.00 463.50 213.50 47.00 0.00 3925.50
1915 0.00 0.00 141.00 369.00 475.00 591.50 811.00 938.50 448.50 235.50 10.00 0.00 4020.00
1916 3.00 1.00 60.50 255.50 424.50 670.00 838.00 820.00 519.50 169.50 12.00 0.00 3773.50
1917 0.00 0.00 3.00 132.50 471.50 578.00 857.50 856.50 565.50 254.00 36.00 15.00 3769.50
1918 1.50 1.50 110.50 256.50 396.00 744.00 895.00 728.00 692.00 332.00 24.00 4.50 4185.50
1919 8.50 0.00 81.00 290.50 465.00 578.00 862.50 822.00 512.50 175.00 1.50 4.50 3801.00
1920 7.00 0.00 61.50 199.50 423.00 600.00 928.50 811.50 514.00 200.00 29.50 0.00 3774.50
1921 0.00 13.50 92.00 185.50 512.00 716.00 842.50 832.00 427.00 294.50 27.50 2.00 3944.50
1922 0.00 0.00 19.00 203.79 a 444.50 803.00 877.50 842.50 614.50 313.50 9.50 0.00 4127.79
1923 6.00 0.00 74.50 281.00 506.50 634.50 905.50 864.90 a 592.50 286.00 15.00 2.21 c 4168.61
1924 0.00 23.00 26.00 223.50 617.00 657.50 890.00 777.00 579.00 232.50 18.00 4.50 4048.00
1925 1.00 13.00 96.00 339.00 564.50 718.50 1001.50 804.50 575.50 175.50 4.50 0.50 4294.00
1926 0.00 7.50 f 150.50 396.50 482.00 714.50 937.00 760.57 b 363.00 269.00 14.50 7.00 4094.57
1927 0.00 8.00 43.50 229.50 408.00 690.00 843.00 759.00 492.00 269.50 12.00 2.00 3756.50
1928 0.00 0.00 116.00 197.00 587.50 659.50 900.00 759.00 549.50 234.50 18.00 0.00 4021.00
1929 0.00 0.00 69.50 171.50 499.00 616.00 837.50 889.50 475.50 278.00 0.00 0.00 3836.50
1930 0.00 19.00 116.00 397.00 442.50 600.00 909.50 905.00 603.50 186.50 14.00 0.00 4193.00
1931 0.00 6.00 116.00 270.50 581.00 661.00 897.50 825.50 512.00 236.00 40.50 0.00 4146.00
1932 0.00 5.00 47.50 294.00 461.00 705.50 779.50 825.50 542.00 240.50 20.00 13.00 3933.50
1933 0.50 3.00 19.00 247.50 411.00 629.00 833.50 797.50 434.50 246.50 26.00 10.00 3658.00
1934 3.50 3.50 115.50 448.50 580.50 686.00 879.50 845.00 428.50 265.50 62.50 0.00 4318.50
1935 0.00 0.00 22.00 201.00 515.50 639.00 842.50 751.50 622.50 218.50 0.00 0.00 3812.50
1936 0.00 1.50 35.00 372.00 640.50 711.00 882.50 840.50 524.00 264.00 0.00 6.00 4277.00
1937 0.00 0.00 33.00 195.00 484.50 680.00 891.50 666.00 539.50 284.50 35.50 0.50 3810.00
1938 0.00 0.00 19.00 261.50 459.50 724.00 913.00 673.50 684.00 247.50 9.00 0.00 3991.00
1939 3.00 0.00 90.50 331.00 521.00 549.50 847.00 830.50 537.00 205.00 5.00 12.50 3932.00
1940 0.00 3.00 140.00 301.00 552.50 721.00 883.50 791.50 642.00 290.50 6.00 0.00 4331.00
1941 0.00 0.00 160.50 374.00 462.50 642.50 910.50 764.00 389.50 184.00 28.00 12.00 3927.50
1942 0.00 0.00 47.00 301.50 415.50 558.50 816.00 811.50 548.50 218.00 2.00 0.00 3718.50
1943 0.00 0.00 45.00 315.00 352.37 a 553.00 822.50 712.00 552.00 255.23 a 3.50 8.50 3619.10
1944 0.00 d 1.00 34.50 279.50 512.50 662.50 850.00 767.00 564.00 318.50 48.00 0.50 4038.00
1945 1.00 4.50 53.50 157.00 525.50 627.50 902.00 861.00 444.50 248.00 11.00 1.50 3837.00
1946 0.00 0.00 63.50 283.50 555.00 584.00 845.00 810.50 483.00 131.50 0.00 0.50 3756.50
1947 2.00 15.50 109.00 267.00 595.00 625.00 856.00 758.50 566.00 283.50 15.50 0.00 4093.00
1948 0.00 4.50 32.50 189.50 501.00 814.80 e 770.50 740.00 522.50 187.50 0.00 0.00 3762.80
1949 0.00 a 1.00 33.00 339.50 626.00 674.50 873.50 821.00 604.00 148.00 65.50 7.50 4193.50
1950 0.00 4.50 18.50 185.00 459.00 703.50 911.50 885.50 608.00 199.50 6.50 5.50 3987.00
1951 0.00 6.50 34.00 255.00 a 557.50 654.50 920.50 832.00 548.00 212.50 6.50 3.50 4030.50
1952 0.00 0.00 41.00 330.50 527.00 681.00 879.00 823.00 639.00 328.50 9.50 0.00 4258.50
1953 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
1954 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
1955 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
1956 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
1957 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
1958 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
1959 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
1960 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
1961 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
1962 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
1963 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
1964 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
1965 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
1966 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
1967 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
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 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
1971 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
1972 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
1973 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
1974 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
1975 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
1976 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
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 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
1979 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
1980 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
1981 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
1982 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
1983 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
1984 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
1985 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
1986 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
1987 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
1988 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
1989 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
1990 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
1991 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
1992 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
1993 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 678.00 798.50 599.00 354.50 0.00 z 0.00 2430.00
1994 0.00 d 0.00 126.00 i 351.50 573.00 654.50 1052.50 966.74 d 708.60 e 269.00 3.00 1.00 4579.84
1995 0.00 k 36.50 i 65.00 h 210.50 h 441.50 f 445.50 k 909.00 766.00 696.00 215.00 56.00 10.16 b 2652.16
1996 2.00 7.50 85.00 265.00 373.00 659.00 952.00 891.00 541.50 242.50 18.00 0.00 k 4036.50
1997 3.50 5.00 91.00 189.00 588.50 675.00 891.50 948.00 675.00 244.00 37.50 3.50 4351.50
1998 0.00 13.50 134.00 307.00 603.00 710.50 1074.50 975.50 784.50 249.50 75.00 6.00 4933.00
1999 5.50 9.50 92.00 232.00 407.00 644.50 817.50 964.00 587.00 259.50 99.00 3.50 4121.00
2000 0.00 1.55 a 70.00 344.50 458.00 687.00 878.50 879.50 568.00 262.00 2.00 0.00 4151.05
2001 0.00 0.00 99.50 211.50 569.50 614.50 914.00 988.50 740.50 201.00 94.50 1.00 4434.50
2002 5.00 18.50 40.00 259.00 435.00 746.50 1012.50 911.00 625.50 243.50 55.50 11.00 4363.00
2003 7.50 17.00 116.00 216.50 f 496.00 786.50 0.00 z 985.00 574.00 f 0.00 z 0.00 z 0.00 z 2408.00
2004 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 978.05 a 566.50 296.50 12.50 0.00 1853.55
2005 0.00 4.00 118.50 312.00 614.00 662.50 907.00 683.50 h 0.00 z 0.00 z 0.00 z 0.00 z 2618.00
2006 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 53.00 0.00 z 53.00
2007 0.00 e 2.50 87.63 e 252.50 295.00 o 725.00 1120.00 904.50 619.00 238.50 40.00 6.50 3996.13
2008 0.00 6.50 25.50 163.45 a 584.50 666.72 a 935.00 921.00 604.00 226.50 47.00 0.00 4180.17
2009 1.00 1.00 40.00 211.00 525.00 734.00 995.50 966.50 732.00 155.60 e 14.50 0.00 4376.10
2010 0.50 22.00 107.50 306.50 410.00 666.00 935.00 899.50 623.50 326.50 31.00 0.00 4328.00
2011 0.00 3.50 69.00 133.50 465.50 636.50 849.00 934.50 717.50 266.50 8.00 4.00 4087.50
2012 1.00 0.50 67.50 332.50 513.00 640.50 1017.00 967.50 690.50 257.50 92.50 15.00 4595.00
2013 0.00 0.00 111.00 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 111.00
Period of Record Statistics
MEAN 1.22 4.21 71.66 259.89 492.22 653.56 873.54 820.50 553.91 239.43 29.37 3.61 3971.71
S.D. 2.25 5.80 40.51 75.45 69.54 68.77 83.42 90.47 95.66 57.39 38.65 6.62 309.49
SKEW 2.00 1.72 0.36 0.10 0.24 -0.26 0.26 0.02 0.22 -0.26 4.04 3.25 0.29
MAX 9.00 23.00 160.50 448.50 640.50 814.80 1120.00 988.50 784.50 354.50 278.00 41.00 4933.00
MIN 0.00 0.00 3.00 110.50 352.37 436.50 665.50 629.00 363.00 92.50 0.00 0.00 3291.10
NO YRS 69 69 69 68 68 68 70 71 71 71 71 70 61