SMYRNA, WASHINGTON

Monthly Total Growing Degree Days

(457727)

Base Temperature = 40 F

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 200603
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
1951 0.00 z 0.00 z 0.00 z 88.00 x 448.50 k 683.00 f 534.50 p 661.00 k 776.50 361.50 48.50 14.50 1201.00
1952 0.00 10.50 145.50 417.00 741.00 0.00 z 0.00 z 0.00 z 854.00 540.50 28.00 24.00 2760.50
1953 122.00 79.50 215.00 317.00 572.00 715.50 1090.50 1024.00 794.00 463.50 112.50 36.00 5541.50
1954 32.00 78.00 69.23 a 310.50 689.50 704.00 1015.50 956.00 685.00 295.50 169.50 8.50 5013.23
1955 0.00 13.50 59.00 211.00 546.00 878.00 1043.50 1030.00 739.00 399.50 59.50 2.50 4981.50
1956 12.00 11.50 155.00 444.50 761.00 747.50 1188.50 1082.50 769.50 366.50 58.00 56.50 5653.00
1957 0.00 33.50 146.00 433.00 802.00 886.50 1020.00 943.50 801.00 326.50 42.50 39.00 5473.50
1958 41.00 140.00 119.50 336.50 896.50 1016.00 1253.50 1242.50 707.00 398.00 155.50 9.00 6315.00
1959 22.00 36.00 210.50 413.50 556.00 861.00 1167.50 1006.50 673.00 379.00 78.50 29.50 5433.00
1960 4.50 31.50 228.00 357.00 600.50 896.00 1254.00 992.50 794.50 424.50 82.00 2.50 5667.50
1961 42.50 113.50 196.50 375.50 609.00 999.50 1177.50 1238.45 a 668.00 300.50 11.50 15.50 5747.95
1962 35.50 40.00 128.50 458.00 517.50 858.50 1050.50 936.50 723.00 0.00 z 155.00 24.00 4927.00
1963 11.50 52.00 227.00 293.00 646.00 887.50 991.00 1075.50 891.50 488.00 124.00 0.00 5687.00
1964 7.00 30.50 155.50 319.50 623.00 856.00 1085.00 947.00 655.50 380.50 36.00 5.17 a 5100.67
1965 20.00 73.50 161.00 448.50 649.50 880.00 1113.50 1063.00 669.50 493.00 135.50 15.50 5722.50
1966 11.50 37.50 178.00 413.00 697.00 801.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2138.50
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 616.50 304.00 74.00 4.00 998.50
1971 58.00 66.50 76.50 323.00 707.00 722.50 1094.50 1208.00 602.00 365.00 63.50 1.00 5287.50
1972 24.50 49.20 a 220.00 285.00 687.17 a 870.00 e 1037.00 1086.50 609.00 348.50 44.50 52.50 5313.86
1973 1.50 26.50 216.50 411.00 708.50 852.50 1102.00 1044.50 749.50 379.00 49.00 34.00 5574.50
1974 88.50 39.50 158.50 398.00 546.00 930.00 1023.00 1036.50 761.50 361.00 93.00 17.50 5453.00
1975 2.00 18.50 80.50 242.00 625.34 b 645.00 f 883.50 g 967.50 750.50 391.00 109.50 29.00 3215.84
1976 6.50 63.50 144.50 342.00 653.00 765.00 1042.50 925.50 819.00 327.00 86.50 5.50 5180.50
1977 0.50 84.00 170.00 498.10 a 555.00 938.00 1038.50 1160.50 622.50 343.00 92.00 44.50 5546.60
1978 2.00 19.50 238.00 385.00 587.50 880.00 1083.45 a 1013.00 683.50 332.50 28.50 15.50 5268.45
1979 0.00 31.00 197.50 320.50 734.00 0.00 z 1093.00 1032.50 796.00 475.50 27.50 37.50 4745.00
1980 1.00 10.50 165.00 460.00 618.00 741.50 1019.00 932.00 726.00 361.00 99.00 48.50 5181.50
1981 31.50 78.81 a 240.50 380.00 620.50 755.50 1005.00 1126.00 724.50 330.67 a 105.00 25.50 5423.48
1982 14.00 75.50 142.50 239.00 567.00 931.00 1031.50 1061.50 723.50 304.00 30.50 14.50 5134.50
1983 35.00 66.00 244.50 306.00 681.50 823.00 961.50 1071.50 607.50 308.00 125.50 0.00 5230.00
1984 39.50 34.00 208.50 315.50 486.50 765.50 1071.00 1026.50 591.00 278.00 47.50 0.00 4863.50
1985 0.00 17.50 110.00 426.00 703.50 875.00 1231.00 925.00 547.50 301.50 78.50 0.00 5215.50
1986 10.00 61.50 248.50 338.00 655.50 964.50 943.00 1153.50 626.50 396.00 131.00 0.00 5528.00
1987 2.00 23.50 192.50 466.00 724.50 860.00 1020.50 977.50 770.00 338.50 122.00 45.00 5542.00
1988 6.50 60.50 137.00 408.50 604.50 797.00 1066.00 984.50 698.00 507.00 108.50 6.50 5384.50
1989 37.00 2.00 152.00 437.50 601.50 903.50 1021.00 992.50 698.50 371.00 162.00 5.50 5384.00
1990 44.50 32.00 170.50 481.00 596.50 821.50 1143.50 1052.50 859.00 333.50 154.50 11.50 5700.50
1991 4.50 72.50 91.00 377.00 572.50 724.50 1077.00 1095.50 763.50 368.00 61.50 54.00 5261.50
1992 40.00 56.00 0.00 z 0.00 z 710.00 1003.50 0.00 z 1053.50 631.00 399.50 83.00 1.00 3977.50
1993 1.00 4.50 118.00 352.50 779.00 824.50 899.50 933.00 705.00 424.50 44.00 24.50 5110.00
1994 23.00 27.00 212.00 502.00 706.50 829.00 1167.50 1063.00 809.50 384.00 38.00 30.50 5792.00
1995 12.50 134.50 177.00 343.00 686.00 807.00 1078.00 899.00 794.50 351.00 125.00 20.50 5428.00
1996 8.50 37.00 128.50 413.00 540.50 811.50 1109.50 988.50 661.00 345.50 64.50 0.00 a 5108.00
1997 16.00 45.00 203.50 315.00 699.50 819.00 1034.00 1071.00 756.00 381.50 91.00 25.00 5456.50
1998 21.50 69.00 224.50 368.50 673.50 885.50 1262.50 1128.00 888.00 357.00 167.00 34.50 6079.50
1999 54.00 100.50 197.50 342.50 564.00 836.50 1019.50 1090.00 668.50 343.50 181.00 72.00 5469.50
2000 3.50 28.00 153.50 466.50 664.50 851.00 1060.50 1043.00 681.50 352.00 18.50 0.00 5322.50
2001 6.50 8.00 210.00 342.00 693.00 768.50 1072.00 1081.50 771.00 357.00 130.00 21.50 5461.00
2002 50.00 58.50 109.00 366.50 579.50 886.50 1130.50 0.00 z 731.00 321.50 123.00 28.00 4384.00
2003 39.00 58.50 260.00 372.00 616.00 952.50 1181.00 1096.00 821.00 547.50 60.50 6.50 6010.50
2004 13.50 18.50 306.50 428.50 659.50 892.00 1180.50 1128.50 741.00 480.00 70.00 42.50 5961.00
2005 6.00 14.00 268.50 412.50 728.00 850.00 1104.00 1087.00 704.50 431.00 38.00 6.50 5650.00
2006 34.50 29.50 155.50 362.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 582.00
Period of Record Statistics
MEAN 21.57 47.10 174.45 375.47 648.83 849.47 1083.77 1044.11 723.73 378.32 86.74 20.53 5457.17
S.D. 24.13 31.93 55.35 67.18 80.25 76.57 81.60 81.67 79.39 64.22 45.36 18.22 304.34
SKEW 1.91 0.96 -0.05 -0.22 0.46 0.09 0.39 0.42 0.03 0.96 0.32 0.74 0.55
MAX 122.00 140.00 306.50 502.00 896.50 1016.00 1262.50 1242.50 891.50 547.50 181.00 72.00 6315.00
MIN 0.00 2.00 59.00 211.00 486.50 704.00 899.50 899.00 547.50 278.00 11.50 0.00 4863.50
NO YRS 51 51 50 50 50 47 46 47 51 50 51 51 43