RITZVILLE 1 SSE, WASHINGTON

Monthly Total Growing Degree Days

(457059)

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
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 0.00 z 0.00 z 0.00 z 0.00
1901 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1902 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1903 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1904 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1905 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1906 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1907 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1908 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1909 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1910 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1911 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1912 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1913 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
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 0.00 z 0.00 z 0.00 z 0.00 z 0.00
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 k 4.50 95.00 253.00 357.00 560.19 d 807.00 951.50 613.50 0.00 z 19.14 a 0.50 3661.33
1917 0.00 0.00 5.00 131.00 438.50 575.50 991.50 987.50 677.00 392.50 126.00 62.00 4386.50
1918 20.50 12.00 128.65 a 299.50 387.50 842.00 1014.50 811.50 805.00 382.00 45.00 27.00 4775.15
1919 23.50 0.00 98.50 302.00 483.50 607.00 978.50 942.50 599.00 206.50 46.00 6.00 4293.00
1920 7.00 0.00 a 68.50 169.00 397.00 609.31 a 1021.45 a 931.50 588.00 254.00 36.50 7.00 4089.26
1921 4.00 31.23 b 108.50 a 195.50 515.50 800.00 894.00 951.50 462.93 a 365.00 65.00 24.00 4417.16
1922 0.00 0.00 24.00 170.50 471.00 884.50 1021.40 b 978.50 710.17 a 376.50 13.00 5.50 4655.07
1923 5.50 0.00 a 97.00 324.00 508.50 649.00 998.00 987.50 719.50 354.00 61.50 0.00 z 4704.50
1924 4.50 57.00 45.50 268.45 a 716.00 769.14 a 964.00 889.00 641.38 a 300.50 24.83 a 24.50 4704.79
1925 3.00 25.41 a 0.00 z 351.00 589.50 763.00 1057.50 910.00 604.00 240.50 14.00 4.65 a 4562.56
1926 0.00 40.00 160.50 443.00 487.50 766.00 511.00 o 903.50 446.90 a 307.50 63.00 6.50 3624.40
1927 0.00 6.00 44.95 a 209.50 400.50 720.50 977.02 a 932.07 a 504.00 306.50 0.00 z 8.00 4109.03
1928 0.00 b 1.04 a 117.00 191.00 657.00 709.00 1019.00 876.00 638.50 298.00 43.50 0.00 z 4550.04
1929 0.00 0.00 85.25 a 171.00 514.00 658.50 909.00 1008.00 572.00 415.00 11.00 9.00 4352.75
1930 1.50 39.50 149.83 a 420.50 482.50 655.50 1028.00 1028.50 668.79 a 219.00 70.34 a 0.00 4763.97
1931 15.50 12.44 a 103.00 259.00 630.00 715.50 1009.00 968.00 627.50 319.50 54.00 2.07 a 4715.51
1932 0.00 46.00 99.50 316.50 465.50 802.50 b 856.12 a 897.50 678.00 325.50 82.50 15.50 a 4585.12
1933 11.00 0.00 63.50 242.00 357.00 705.50 970.50 978.00 512.50 417.50 52.76 a 59.50 4369.76
1934 26.00 43.56 a 264.53 a 517.76 a 641.00 734.00 955.83 a 973.50 551.50 400.00 116.50 2.14 b 5226.32
1935 29.97 a 12.00 33.50 183.00 523.50 684.00 952.50 875.75 a 780.00 346.50 5.00 0.00 4425.72
1936 0.50 6.00 66.50 403.45 a 691.00 760.86 a 983.50 945.50 613.00 437.00 16.00 24.50 4947.81
1937 0.00 0.00 130.72 a 180.00 a 538.50 722.50 1019.00 813.00 690.50 429.35 a 77.50 9.50 4610.57
1938 2.50 0.00 73.00 267.00 502.50 782.00 1060.00 853.00 858.50 363.50 27.00 17.57 a 4806.57
1939 9.00 1.00 158.50 337.50 585.90 a 635.00 1006.50 1010.00 673.80 e 309.50 61.00 53.73 a 4841.43
1940 0.00 a 2.00 163.50 299.00 618.00 790.00 966.00 920.00 738.50 421.00 17.50 5.50 4941.00
1941 0.00 22.00 195.50 360.50 484.00 650.50 1078.50 921.00 480.00 237.00 72.50 20.67 a 4522.17
1942 0.00 0.00 56.00 299.00 420.50 588.50 1004.00 1017.00 706.00 365.50 16.50 0.00 4473.00
1943 0.00 0.00 59.00 297.00 353.40 a 575.50 937.00 861.00 741.50 358.50 25.00 13.50 4221.40
1944 0.00 1.00 47.50 256.50 543.50 677.00 977.50 853.50 720.50 520.50 47.50 6.00 4651.00
1945 13.43 a 8.50 38.50 163.50 540.50 651.00 984.50 965.00 565.56 c 406.50 37.50 0.00 4374.49
1946 0.00 z 10.37 a 66.00 270.00 565.00 641.50 964.00 959.50 611.38 a 183.00 1.50 19.50 4291.75
1947 4.00 33.50 163.00 295.00 657.41 b 678.50 933.32 c 869.00 0.00 z 322.40 a 18.50 0.00 z 3974.64
1948 0.00 5.50 0.00 z 0.00 z 0.00 z 786.72 a 828.50 842.50 397.50 m 320.50 6.50 0.00 2790.22
1949 0.00 9.50 122.00 357.00 643.50 686.50 913.50 912.50 512.00 m 219.50 122.00 3.00 3989.00
1950 0.00 1.50 24.00 168.50 419.00 669.11 b 937.50 966.50 725.50 253.00 25.00 13.00 4202.61
1951 1.00 20.00 36.00 287.00 489.50 666.00 984.77 a 906.50 677.14 b 267.00 14.50 7.50 4356.91
1952 0.00 4.00 59.00 326.00 514.08 a 685.00 967.50 915.50 765.00 519.00 19.50 0.00 4774.58
1953 46.50 13.00 112.50 220.00 420.50 577.50 916.05 a 900.50 709.50 381.30 a 99.50 1.66 c 4398.51
1954 2.50 13.00 35.00 165.00 524.50 550.50 872.00 780.88 b 587.59 a 272.50 126.50 1.00 3930.97
1955 0.00 1.50 14.50 100.50 346.00 738.50 868.52 a 721.00 g 635.00 306.00 21.00 0.00 3031.52
1956 0.00 0.00 73.00 342.50 595.50 622.50 1025.58 a 907.00 681.50 253.50 1.03 a 7.75 a 4509.87
1957 0.00 17.50 67.00 265.00 614.00 742.00 859.50 818.00 731.00 242.32 a 16.50 3.21 b 4376.02
1958 9.00 98.00 68.00 186.00 703.50 820.50 1073.50 1043.00 601.00 353.00 68.50 7.50 5031.50
1959 4.00 2.00 63.50 259.00 380.50 688.00 971.50 794.00 532.50 253.50 44.50 4.13 a 3997.13
1960 1.00 2.00 151.50 228.50 394.00 697.50 1089.50 805.50 673.50 353.00 26.50 0.00 b 4422.50
1961 13.00 35.50 101.50 242.00 465.00 863.50 1041.00 1101.50 539.00 264.50 3.50 1.00 4671.00
1962 5.00 18.00 55.50 349.50 356.50 639.50 876.00 800.50 687.00 303.00 64.50 12.50 4167.50
1963 1.50 27.50 103.00 192.50 503.50 709.00 836.00 933.50 849.00 409.00 48.00 0.00 4612.50
1964 0.00 3.50 51.50 187.50 450.00 673.00 942.00 770.50 565.00 357.00 28.50 5.00 4033.50
1965 0.00 28.50 83.00 326.50 461.50 690.00 966.50 945.50 0.00 z 201.00 k 98.50 5.50 3605.50
1966 2.50 10.50 100.00 211.50 530.00 586.00 849.50 902.50 716.00 264.00 57.00 12.00 4241.50
1967 8.50 20.50 36.50 104.00 391.50 741.50 958.50 1082.00 819.00 283.00 34.50 0.50 4480.00
1968 12.00 65.50 127.50 137.50 438.50 642.00 984.00 794.00 632.50 220.50 14.00 6.50 4074.50
1969 0.00 0.00 92.50 246.50 552.50 787.50 822.50 747.00 592.00 146.00 39.81 d 1.50 4027.81
1970 0.00 9.50 49.50 85.00 403.50 798.00 933.50 884.50 406.00 195.50 34.00 0.00 3799.00
1971 17.00 21.00 7.75 a 143.50 514.00 517.50 929.00 1039.00 450.50 247.50 16.50 0.00 3903.25
1972 2.00 7.50 114.00 122.00 483.50 651.50 856.50 939.00 422.50 299.50 31.00 19.50 3948.50
1973 5.00 16.00 67.50 210.50 502.00 638.00 930.00 864.50 600.50 250.50 26.50 8.50 4119.50
1974 10.00 4.00 50.00 186.00 309.00 709.00 844.00 880.00 682.00 318.00 22.50 3.00 4017.50
1975 0.00 0.00 21.50 97.00 390.00 566.00 1008.00 739.00 686.00 253.50 59.00 19.50 3839.50
1976 9.00 2.50 29.50 173.50 416.00 524.50 874.00 772.50 719.50 276.00 52.50 0.00 3849.50
1977 0.00 38.00 28.00 308.00 311.00 759.50 808.00 1011.00 477.00 236.50 26.50 11.50 4015.00
1978 0.00 10.00 153.00 198.50 351.00 684.00 907.00 806.00 521.00 296.50 19.29 b 0.00 3946.29
1979 0.00 5.50 121.00 201.50 498.50 690.00 938.50 916.50 717.00 387.50 15.00 8.50 4499.50
1980 0.00 20.50 31.00 310.00 460.00 526.50 858.00 735.50 576.50 304.00 69.00 39.00 3930.00
1981 16.50 30.50 111.00 178.50 420.50 513.10 a 817.00 978.50 607.00 188.50 76.00 4.50 3941.60
1982 0.00 36.00 49.50 118.50 393.50 733.00 842.00 851.00 564.50 199.50 7.00 4.50 3799.00
1983 13.00 45.00 114.00 200.00 522.00 601.00 772.00 952.50 478.00 239.50 61.00 0.00 3998.00
1984 1.50 6.50 76.50 139.00 284.00 537.00 891.50 898.00 482.00 199.50 20.00 0.00 3535.50
1985 0.00 0.00 32.00 259.00 494.00 670.50 1081.50 797.00 424.50 215.50 30.50 0.00 4004.50
1986 1.00 44.50 141.00 171.00 472.00 824.00 760.50 1043.00 490.00 378.00 37.50 0.00 4362.50
1987 0.00 10.00 125.50 368.50 585.00 789.00 877.50 862.00 744.00 394.00 98.50 19.00 4873.00
1988 0.00 35.00 60.00 294.00 452.50 663.00 894.50 892.00 596.00 503.00 59.50 1.00 4450.50
1989 7.50 0.00 68.00 320.00 463.50 766.50 882.50 808.50 678.50 289.50 70.00 2.00 4356.50
1990 11.00 1.50 107.50 336.50 392.50 630.50 1000.50 925.50 755.00 130.00 62.50 0.00 4353.00
1991 0.00 11.50 9.50 164.00 299.50 491.00 898.50 976.00 715.50 322.50 10.50 8.50 3907.00
1992 16.00 32.00 191.50 264.50 530.00 824.50 849.50 892.00 498.50 327.00 11.50 0.00 4437.00
1993 0.00 0.00 40.50 173.50 614.00 608.00 677.00 776.50 630.00 377.50 11.00 10.50 3918.50
1994 10.00 9.50 148.50 312.50 513.50 642.50 989.00 899.00 721.00 251.50 6.00 9.00 4512.00
1995 5.00 81.00 89.00 188.00 509.00 611.50 887.00 742.00 716.50 194.50 67.00 8.50 4099.00
1996 9.50 17.00 51.00 234.50 321.50 586.50 980.00 893.00 496.00 259.50 22.50 0.00 3871.00
1997 1.00 13.50 83.00 156.00 525.00 563.00 818.00 966.50 679.50 266.00 54.50 0.00 4126.00
1998 7.00 30.50 122.00 232.50 473.00 667.50 1085.00 956.50 794.00 286.00 58.50 4.50 4717.00
1999 3.00 5.00 87.50 169.00 327.00 584.00 801.00 963.00 612.00 283.00 118.50 10.00 3963.00
2000 0.00 6.00 32.50 292.00 438.00 632.50 853.50 857.00 531.50 249.50 1.50 0.00 3894.00
2001 0.00 0.00 79.00 179.50 488.00 558.00 893.00 975.00 726.50 246.50 104.00 0.50 4250.00
2002 9.50 10.50 21.00 197.00 376.50 686.00 971.50 839.00 622.00 230.50 73.00 20.00 4056.50
2003 18.00 13.50 0.00 z 211.50 422.50 734.00 1008.00 953.00 694.00 434.50 16.50 0.00 4505.50
2004 1.50 10.00 160.50 301.50 454.00 698.00 974.50 981.50 569.50 328.50 27.50 8.00 4515.00
2005 4.50 19.00 120.00 234.50 518.50 609.00 929.50 926.50 530.00 322.00 8.00 6.00 4227.50
2006 9.00 4.00 55.00 214.50 474.50 664.00 1024.50 896.00 645.50 285.50 58.00 1.50 4332.00
2007 1.50 11.50 131.50 192.50 535.00 729.00 1141.00 932.00 682.50 342.00 69.00 12.00 4779.50
2008 0.00 6.50 20.00 92.00 483.50 587.50 918.00 868.50 628.00 279.50 70.00 0.00 3953.50
2009 4.00 4.00 33.00 186.00 472.00 689.50 992.00 926.00 726.50 158.50 16.50 0.00 4208.00
2010 18.50 11.50 95.00 194.00 321.50 554.50 883.00 854.00 583.50 339.50 63.50 4.50 3923.00
2011 17.50 3.00 42.50 66.00 327.50 555.50 778.00 923.00 745.00 288.50 14.00 2.50 3763.00
2012 3.00 6.00 59.00 246.00 388.00 560.89 b 968.50 960.00 687.00 285.00 93.00 20.67 a 4277.06
2013 0.00 0.00 85.25 a 30.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 85.25
Period of Record Statistics
MEAN 5.42 14.91 83.17 236.15 475.48 672.73 936.96 906.15 632.59 305.06 43.92 8.45 4306.31
S.D. 7.97 18.23 48.66 84.59 96.65 87.77 84.93 79.05 102.01 79.33 31.88 12.00 348.83
SKEW 2.27 2.00 0.80 0.52 0.28 0.15 -0.28 -0.14 -0.20 0.39 0.79 2.61 0.28
MAX 46.50 98.00 264.53 517.76 716.00 884.50 1141.00 1101.50 858.50 520.50 126.50 62.00 5226.32
MIN 0.00 0.00 5.00 66.00 284.00 491.00 677.00 735.50 406.00 130.00 1.03 0.00 3535.50
NO YRS 96 98 95 96 96 97 96 96 93 95 96 94 84