WATERVILLE, WASHINGTON

Monthly Total Growing Degree Days

(459012)

Base Temperature = 40 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201304
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 0.50 0.00 0.00 j 87.93 a 350.50 481.50 780.00 851.00 504.31 a 104.50 5.00 2.00 3167.24
1894 1.00 0.00 a 10.50 y 143.50 396.50 545.50 864.50 913.50 433.50 141.00 27.00 0.00 3466.00
1895 0.00 1.00 42.00 0.00 z 364.77 a 643.00 793.50 789.47 a 338.00 302.00 39.50 0.00 3313.23
1896 0.00 4.50 35.00 74.00 260.50 623.00 846.00 855.00 420.00 213.50 13.00 0.50 3345.00
1897 0.50 0.00 4.50 237.50 610.50 539.00 650.50 917.00 447.50 195.50 12.00 0.00 3614.50
1898 0.00 1.00 1.50 210.00 258.50 k 537.50 815.50 76.50 z 442.50 i 7.00 x 7.50 0.00 1573.00
1899 31.50 8.00 14.00 130.50 276.50 586.50 900.00 649.00 608.00 117.50 49.50 18.50 3389.50
1900 0.00 2.00 95.50 223.50 485.00 756.00 873.50 667.00 475.50 137.50 0.00 1.00 3716.50
1901 0.00 1.50 8.00 140.00 438.65 a 475.50 789.50 978.50 401.00 395.00 1.03 a 0.00 3628.68
1902 0.00 0.00 3.50 135.50 456.50 542.00 753.50 831.00 457.50 269.00 2.00 0.00 3450.50
1903 0.00 0.00 4.00 106.55 a 413.00 777.00 773.00 789.00 433.00 233.00 25.50 0.00 3554.05
1904 0.00 0.00 0.00 157.50 387.50 645.00 843.20 a 912.00 589.50 275.00 38.28 a 0.00 3847.98
1905 0.00 1.50 35.00 235.00 363.00 605.36 b 898.50 785.50 519.50 60.50 4.00 0.00 3507.86
1906 0.00 0.00 28.00 332.59 a 448.95 c 487.50 1064.50 851.00 603.00 272.00 29.00 0.00 4116.53
1907 0.00 0.00 8.50 l 120.00 485.00 524.00 822.50 467.00 i 542.14 b 404.03 a 32.00 0.00 2929.68
1908 0.00 0.00 29.50 197.59 a 227.50 i 438.50 h 884.00 0.00 z 558.00 e 173.48 e 65.19 d 0.00 c 1907.76
1909 0.00 b 0.00 g 1.00 k 79.00 k 344.58 e 0.00 z 0.00 z 352.00 q 619.44 c 199.95 a 21.21 a 0.00 b 1185.18
1910 0.00 a 0.00 125.50 0.00 z 552.32 a 534.64 b 862.00 594.50 h 497.78 c 266.50 12.22 c 0.00 b 2850.96
1911 0.00 0.00 77.00 159.00 316.00 620.69 a 889.50 774.00 404.48 a 191.17 a 17.50 g 0.00 j 3431.84
1912 0.00 c 0.00 b 20.00 153.50 448.95 c 657.00 746.14 b 682.00 a 416.38 a 130.20 a 0.50 l 0.00 a 3254.16
1913 0.00 b 1.00 0.00 b 185.17 a 419.69 e 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 605.86
1914 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 466.50 292.00 28.50 h 0.00 758.50
1915 0.00 0.00 73.00 313.50 380.00 602.00 796.50 985.50 508.50 262.50 8.00 0.00 3929.50
1916 0.00 b 0.00 22.98 b 203.50 311.50 548.00 659.50 825.00 571.00 213.00 5.50 0.00 3359.98
1917 0.00 1.00 0.00 51.50 388.50 542.00 875.00 915.50 596.00 348.00 35.00 5.00 3757.50
1918 2.00 0.00 35.50 226.50 363.00 722.50 864.00 736.50 759.00 279.00 9.50 4.50 4002.00
1919 0.00 0.00 21.00 163.00 315.50 491.00 895.50 879.50 540.50 197.50 18.50 0.00 3522.00
1920 0.00 z 0.00 z 0.00 z 0.00 z 225.50 g 169.50 u 891.50 855.00 494.50 152.50 8.00 0.00 2401.50
1921 0.00 1.50 22.50 105.50 449.50 616.50 772.00 814.00 360.52 a 276.00 33.50 0.00 a 3451.52
1922 0.00 0.00 1.50 109.00 361.00 794.00 932.07 a 873.00 614.50 299.00 0.00 0.00 3984.07
1923 0.00 a 0.00 62.50 210.00 410.50 575.00 917.08 a 884.50 638.50 247.50 14.50 0.00 3960.08
1924 0.00 2.00 9.00 169.50 638.50 629.00 878.50 833.50 561.50 211.00 3.00 20.48 c 3955.98
1925 0.00 0.00 58.00 271.00 475.50 672.50 977.00 796.50 553.50 216.00 2.50 0.00 4022.50
1926 0.00 2.00 123.50 363.00 378.50 727.24 a 974.50 792.00 341.00 195.00 0.00 z 0.00 z 3896.74
1927 0.00 0.00 12.00 150.50 305.50 674.50 870.00 848.50 474.50 220.00 16.00 1.50 3573.00
1928 1.50 0.00 45.98 a 104.50 544.00 619.00 944.50 830.00 600.50 226.82 a 6.00 0.00 3922.80
1929 0.00 b 0.00 55.00 138.00 387.50 587.07 a 827.00 918.50 510.50 302.50 9.00 0.00 3735.07
1930 0.00 b 12.00 91.50 286.50 368.50 517.00 859.50 901.00 594.50 168.50 33.00 0.00 3832.00
1931 0.00 b 0.00 20.50 189.00 526.00 599.50 875.50 850.50 484.00 204.50 15.50 0.00 3765.00
1932 0.00 7.00 44.00 191.00 367.50 649.00 706.50 797.00 581.00 264.00 19.00 7.00 3633.00
1933 0.00 0.00 a 6.00 193.00 260.50 566.00 836.00 855.00 406.50 297.50 38.50 1.50 3460.50
1934 4.00 9.50 154.00 433.00 505.00 642.50 825.50 884.00 470.50 284.50 49.14 a 0.00 4261.64
1935 3.62 a 0.00 11.00 132.00 397.50 570.50 795.50 733.50 652.50 311.55 a 5.50 0.00 3613.17
1936 0.00 0.00 25.00 316.50 587.50 599.00 828.50 853.00 521.00 372.50 2.50 0.00 4105.50
1937 0.00 0.00 30.50 91.50 364.50 567.50 858.00 648.00 596.00 319.82 a 7.00 0.00 a 3482.82
1938 0.00 0.00 1.00 191.50 419.00 657.00 928.00 702.00 695.50 257.00 10.50 0.00 3861.50
1939 0.00 0.00 84.50 229.50 448.50 505.50 833.00 863.50 560.00 258.50 14.00 0.50 3797.50
1940 0.00 0.00 68.50 0.00 z 398.00 673.00 826.00 795.00 642.50 265.50 0.50 0.00 3669.00
1941 0.00 0.00 135.50 276.00 381.50 550.00 906.00 750.00 353.00 187.00 42.50 4.50 3586.00
1942 0.00 0.00 23.50 234.00 330.00 474.50 833.00 850.00 583.00 263.50 2.00 0.00 3593.50
1943 0.00 0.00 31.50 226.50 281.50 461.50 777.50 694.50 626.00 281.00 8.50 3.00 3391.50
1944 0.00 0.00 42.00 166.50 427.50 561.00 799.00 718.50 625.00 418.50 15.50 0.00 a 3773.50
1945 0.00 1.00 14.50 132.00 413.00 503.00 832.00 806.00 478.00 330.00 40.00 0.00 3549.50
1946 0.00 1.50 20.00 180.50 486.00 490.50 786.00 788.00 0.00 z 128.50 0.00 5.00 2886.00
1947 0.00 20.00 130.50 238.00 569.00 532.00 781.00 740.50 556.00 184.45 a 26.00 0.00 3777.45
1948 2.00 0.00 25.00 104.48 a 316.00 691.00 694.00 680.00 488.50 168.50 0.00 0.00 3169.48
1949 0.00 0.00 8.50 254.50 552.50 578.00 773.50 781.00 597.50 146.00 76.00 0.00 a 3767.50
1950 0.00 0.00 4.50 79.50 321.00 563.00 806.50 849.00 617.00 122.50 4.14 a 0.00 3367.14
1951 0.00 b 5.00 2.50 225.00 394.50 582.00 823.50 780.50 568.50 200.00 0.50 0.00 b 3582.00
1952 0.00 a 0.00 29.45 a 250.00 447.50 545.50 852.50 820.50 656.00 431.00 6.50 0.00 4038.95
1953 0.00 0.00 z 42.50 141.50 326.50 449.50 816.00 785.00 574.66 a 300.00 30.50 0.00 3466.16
1954 0.00 0.00 8.00 82.50 438.50 468.00 759.50 693.50 506.50 145.00 45.00 b 0.00 3146.50
1955 0.00 0.00 0.50 54.50 278.50 622.00 771.50 845.50 579.00 198.00 14.50 0.00 3364.00
1956 0.00 0.00 2.00 249.00 547.67 a 504.50 924.00 826.00 572.00 199.00 4.50 1.55 a 3830.22
1957 0.00 0.00 15.00 220.50 562.50 612.50 753.50 699.50 673.00 134.00 5.00 0.00 a 3675.50
1958 0.00 6.00 13.50 139.50 648.86 b 744.50 971.00 948.50 504.00 248.00 16.50 0.50 4240.86
1959 0.00 0.00 4.50 175.50 309.00 414.00 873.50 684.00 415.00 241.50 10.80 e 0.00 3127.80
1960 0.00 a 0.00 73.50 204.50 333.50 603.00 944.00 677.50 514.50 248.00 g 8.00 0.00 3358.50
1961 1.50 0.00 34.00 146.50 362.50 728.50 0.00 z 955.00 481.00 98.00 0.00 0.00 2807.00
1962 0.00 0.00 8.50 197.00 263.50 530.00 780.00 754.00 522.50 258.50 9.50 0.00 a 3323.50
1963 0.00 0.00 0.00 z 0.00 z 0.00 z 637.78 c 749.50 815.50 675.00 267.50 1.00 0.00 3146.28
1964 0.00 0.00 29.00 116.00 359.00 581.50 793.00 661.00 441.00 182.50 5.00 0.00 3168.00
1965 1.00 2.50 28.50 202.50 373.50 642.86 b 891.52 b 869.07 b 504.00 305.50 38.50 0.00 a 3859.44
1966 0.00 0.50 54.00 231.00 508.00 549.00 805.50 847.00 673.00 191.00 14.50 0.00 3873.50
1967 1.00 12.00 6.00 55.00 375.00 707.50 913.00 1000.50 731.00 187.00 6.00 0.50 3994.50
1968 0.00 17.50 68.00 128.50 421.50 615.00 924.50 711.00 561.50 97.50 0.00 z 0.00 3545.00
1969 0.00 0.00 24.50 144.50 550.50 795.50 796.50 735.50 491.90 a 130.00 14.00 0.00 3682.90
1970 0.00 0.00 25.50 86.50 432.50 740.69 a 906.00 863.50 401.50 186.00 23.00 0.00 3665.19
1971 13.00 16.00 3.50 0.00 z 496.00 a 508.00 887.50 988.50 386.00 219.00 12.00 0.00 3529.50
1972 0.00 z 2.00 70.50 72.00 483.00 627.50 787.00 890.00 403.00 224.50 2.31 d 0.00 3561.81
1973 0.00 a 1.50 37.00 220.00 461.00 596.00 903.00 870.00 570.50 172.00 0.00 0.00 3831.00
1974 3.32 c 0.00 34.50 168.50 298.00 703.50 808.00 882.00 643.00 253.00 6.50 0.00 3800.32
1975 0.00 0.00 3.00 102.00 372.00 598.00 964.00 712.50 599.50 189.00 31.50 8.00 3579.50
1976 0.00 0.00 16.00 127.50 379.00 504.50 806.00 709.50 667.50 208.00 31.00 0.00 3449.00
1977 0.00 8.00 21.50 309.50 338.50 764.50 827.00 982.00 438.00 188.50 8.50 0.00 3886.00
1978 0.00 0.00 92.00 172.50 378.00 725.00 893.00 775.50 459.50 230.50 9.00 0.00 3735.00
1979 0.00 0.50 71.00 0.00 z 0.00 z 0.00 z 0.00 z 899.00 654.50 341.50 3.21 b 2.50 1972.21
1980 0.00 z 2.59 a 17.50 276.50 477.83 b 548.00 838.03 a 733.67 a 585.50 241.28 a 21.00 f 4.00 3724.90
1981 0.53 b 1.04 a 91.85 d 190.86 a 431.23 c 519.64 b 767.00 967.00 577.50 149.50 13.00 0.00 a 3709.16
1982 0.00 a 2.00 22.00 107.00 388.50 745.00 828.00 843.50 564.00 195.00 0.50 0.00 3695.50
1983 3.00 0.50 45.00 197.00 553.00 615.50 739.50 872.50 445.50 185.00 19.50 0.00 3676.00
1984 2.00 0.00 40.00 103.00 304.00 576.50 897.00 889.00 463.50 158.50 3.50 0.00 3437.00
1985 0.00 2.00 24.00 264.00 514.50 669.50 1085.00 808.50 392.50 170.00 21.50 0.00 3951.50
1986 0.00 5.00 65.00 174.50 482.00 816.00 775.50 1029.00 454.50 263.00 10.00 0.00 4074.50
1987 0.00 0.00 44.50 336.00 542.50 0.00 z 0.00 z 842.00 713.50 284.50 34.50 0.00 z 2797.50
1988 0.00 18.50 47.00 304.50 0.00 z 635.50 947.00 899.50 646.50 415.00 21.00 0.00 a 3934.50
1989 0.00 0.00 6.50 294.00 467.50 752.50 871.00 0.00 z 0.00 z 195.50 44.50 0.00 2631.50
1990 0.00 0.00 87.50 305.00 368.00 572.50 956.00 903.00 0.00 z 0.00 z 0.00 z 0.00 z 3192.00
1991 0.00 z 0.00 z 0.00 z 188.00 366.50 485.00 887.00 984.50 718.00 265.50 0.00 q 0.00 3894.50
1992 0.00 m 0.00 74.00 o 283.00 648.50 908.50 924.50 966.00 542.00 295.02 a 22.00 0.00 4589.52
1993 0.00 0.00 10.50 139.50 622.50 618.50 699.50 816.00 658.50 370.50 19.50 2.00 3957.00
1994 11.50 5.00 185.00 411.50 638.50 736.50 1134.50 984.50 812.50 225.00 0.00 2.50 5147.00
1995 0.00 13.00 56.00 206.00 598.50 676.00 909.50 727.50 740.50 206.00 24.50 1.50 4159.00
1996 0.00 1.00 31.50 236.00 346.50 584.50 964.50 938.00 544.50 176.00 4.00 0.00 q 3826.50
1997 0.00 t 0.00 p 1.50 70.00 436.00 532.50 779.00 888.50 571.00 97.50 13.00 5.00 3394.00
1998 0.00 0.00 44.50 181.00 481.50 0.00 z 1033.50 929.50 742.50 148.00 k 11.50 0.00 3424.00
1999 0.00 0.50 23.50 170.00 346.50 349.00 n 821.00 959.00 535.00 155.50 32.00 0.50 3043.50
2000 0.00 0.00 20.50 282.50 385.00 645.58 d 814.94 e 846.41 c 477.22 c 138.50 0.00 0.00 3610.65
2001 0.00 a 0.00 20.00 124.00 461.50 492.00 807.00 921.73 a 635.50 131.50 13.00 0.00 h 3606.23
2002 0.00 0.00 7.00 101.50 303.00 670.00 948.50 796.00 502.50 153.50 8.00 0.00 3490.00
2003 0.00 0.00 56.50 121.50 367.00 734.00 0.00 z 720.50 508.50 h 411.00 3.50 0.00 2414.00
2004 0.00 0.00 a 100.50 355.00 484.50 769.00 1056.00 1023.00 588.00 284.00 i 15.50 0.50 m 4391.50
2005 3.00 7.00 113.50 236.50 498.50 631.50 0.00 z 940.50 531.50 227.50 0.00 0.00 3189.50
2006 0.00 0.00 0.00 z 198.50 485.50 681.50 1024.00 921.50 621.00 247.50 17.00 0.00 4196.50
2007 0.00 1.00 85.25 c 178.00 475.00 631.00 1002.50 828.00 594.50 144.50 26.50 2.50 3968.75
2008 0.00 f 0.00 z 4.00 86.00 511.00 587.00 900.00 844.50 597.00 158.00 18.50 0.00 a 3706.00
2009 4.50 0.00 7.00 182.00 463.50 651.50 963.50 901.50 621.50 130.00 0.00 0.00 3925.00
2010 0.00 0.00 z 36.00 172.50 291.00 529.50 882.50 807.00 532.50 236.50 30.50 0.00 i 3518.00
2011 1.00 0.00 9.00 40.00 280.03 a 532.50 726.50 884.00 697.50 211.50 0.00 1.50 3383.53
2012 0.00 0.00 20.50 199.50 372.53 b 501.50 927.50 940.50 670.00 250.14 b 32.59 a 1.00 3915.76
2013 0.00 0.00 63.00 31.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 63.00
Period of Record Statistics
MEAN 0.81 1.85 38.22 186.40 422.82 607.94 856.42 835.81 549.39 226.03 16.03 0.98 3719.09
S.D. 3.43 4.10 37.17 79.57 95.16 92.89 87.75 91.76 98.88 77.23 15.10 2.94 308.49
SKEW 7.11 2.82 1.48 0.59 0.47 0.51 0.45 -0.11 0.05 0.55 1.28 4.90 1.10
MAX 31.50 20.00 185.00 433.00 648.86 908.50 1134.50 1029.00 812.50 431.00 76.00 20.48 5147.00
MIN 0.00 0.00 0.00 40.00 260.50 414.00 650.50 648.00 338.00 60.50 0.00 0.00 3127.80
NO YRS 113 113 111 111 113 111 112 112 114 114 111 111 78