COLVILLE, WASHINGTON

Monthly Total Growing Degree Days

(451630)

Base Temperature = 40 F

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 200508
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
1917 0.00 z 0.00 z 0.00 z 94.00 l 471.50 578.00 857.50 856.50 565.50 254.00 36.00 15.00 3634.00
1918 1.50 1.50 111.50 256.50 396.00 744.00 895.00 728.00 692.00 332.00 24.00 4.50 4186.50
1919 8.50 0.00 81.00 290.50 465.00 580.50 862.50 822.00 512.50 175.00 1.50 4.50 3803.50
1920 7.00 0.00 65.00 199.50 423.00 590.00 928.50 811.50 514.00 200.00 29.50 0.00 3768.00
1921 0.00 13.50 92.00 185.50 512.00 716.00 842.50 837.00 431.00 294.50 27.50 2.00 3953.50
1922 0.00 0.00 19.00 200.00 444.50 802.50 877.50 842.50 614.00 313.50 9.50 0.00 4123.00
1923 6.00 0.00 74.50 281.00 507.00 636.00 905.50 859.98 b 592.50 286.00 15.00 2.00 4165.48
1924 0.00 23.00 26.00 223.50 617.00 658.50 890.00 777.00 577.50 232.50 18.00 4.50 4047.50
1925 1.03 a 13.00 96.00 339.00 564.50 721.50 1001.50 804.50 576.50 175.50 4.50 0.00 4297.53
1926 0.00 3.00 145.50 396.50 481.00 719.50 941.00 757.50 373.00 269.00 14.50 7.00 4107.50
1927 0.00 5.50 37.50 221.50 405.00 694.00 849.00 824.50 489.00 267.00 12.00 2.00 3807.00
1928 0.00 0.00 112.00 197.00 587.50 659.50 900.00 756.00 549.50 227.50 18.00 0.00 4007.00
1929 0.00 0.00 70.50 181.50 499.50 622.00 837.50 889.50 475.00 278.00 0.00 0.00 3853.50
1930 0.00 18.50 116.00 397.00 442.50 600.00 904.50 905.00 603.50 186.50 14.00 0.00 4187.50
1931 0.00 6.00 116.00 270.50 589.00 671.00 897.50 824.50 512.00 236.00 36.00 0.00 4158.50
1932 0.00 5.00 47.50 294.00 461.00 705.50 779.50 829.50 542.00 240.50 20.00 13.00 3937.50
1933 0.50 3.00 19.00 247.50 411.00 629.00 833.50 797.50 434.50 246.50 26.00 14.50 3662.50
1934 3.50 3.00 118.00 448.50 580.50 689.50 879.50 847.50 428.00 265.50 62.50 0.00 4326.00
1935 0.00 0.00 22.00 201.00 515.50 639.00 842.50 754.00 620.50 221.00 0.00 0.00 3815.50
1936 0.00 1.50 35.00 369.00 638.00 711.00 882.50 840.50 524.00 268.50 0.00 6.00 4276.00
1937 0.00 0.00 33.00 195.00 484.50 675.00 891.50 668.50 539.50 282.50 35.50 0.50 3805.50
1938 0.00 0.00 19.50 265.50 459.50 719.00 913.00 673.50 684.00 247.50 9.00 0.00 3990.50
1939 3.00 0.00 93.52 a 331.00 521.50 549.50 847.00 830.00 537.00 205.00 5.00 12.50 3935.02
1940 0.00 3.00 140.00 301.00 551.00 723.00 883.50 791.50 642.00 290.50 6.00 0.00 4331.50
1941 0.00 0.00 160.50 374.00 462.50 642.50 907.50 764.00 389.50 184.00 28.00 12.00 3924.50
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 45.00 315.00 355.00 554.00 822.50 717.50 552.50 246.00 3.50 8.50 3619.50
1944 0.00 1.00 34.50 279.50 512.50 662.50 850.00 767.00 564.00 316.50 48.00 0.50 4036.00
1945 1.00 4.50 53.50 157.00 525.50 627.50 902.00 861.00 444.50 253.50 11.00 1.50 3842.50
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 32.50 189.50 501.00 797.50 774.00 741.50 522.50 187.50 0.00 0.00 3750.50
1949 0.00 a 1.00 31.00 349.50 626.00 674.50 873.50 821.00 604.00 147.50 64.00 7.50 4199.50
1950 0.00 4.50 18.50 185.00 455.50 703.50 911.50 885.50 608.00 199.50 6.50 5.50 3983.50
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
Period of Record Statistics
MEAN 1.28 4.75 72.86 273.88 505.05 666.07 884.83 832.78 565.76 245.53 23.29 3.56 4051.54
S.D. 2.34 6.20 40.33 69.41 73.61 61.20 66.95 79.15 88.33 48.11 24.93 4.57 255.77
SKEW 1.79 1.39 0.30 0.37 -0.03 0.14 0.22 0.26 0.10 -0.08 1.45 1.17 0.84
MAX 8.50 23.00 160.50 448.50 638.00 802.50 1074.50 988.50 784.50 354.50 99.00 15.00 4933.00
MIN 0.00 0.00 18.50 157.00 355.00 549.50 678.00 668.50 373.00 131.50 0.00 0.00 3619.50
NO YRS 45 45 44 44 46 46 47 48 47 47 46 46 41