SMYRNA, WASHINGTON

Monthly Total Heating Degree Days

(457727)

Base Temperature = 65 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 62.00 x 78.00 k 31.50 f 5.00 p 10.50 k 65.00 425.00 813.00 1206.00 2509.00
1952 1314.50 845.00 655.00 344.00 98.50 0.00 z 0.00 z 0.00 z 39.50 240.00 953.50 916.00 5406.00
1953 710.00 661.00 566.50 434.50 208.00 64.50 0.00 6.50 73.50 311.50 669.00 819.00 4524.00
1954 1158.50 725.00 760.02 a 439.50 137.50 110.50 7.00 7.50 112.00 480.00 603.50 1029.50 5570.52
1955 1113.50 877.00 817.50 539.00 234.50 23.50 22.00 0.00 134.00 375.50 993.50 1168.50 6298.50
1956 1036.50 1128.00 655.50 309.00 120.00 71.50 0.00 1.50 60.50 411.00 851.50 934.50 5579.50
1957 1489.00 896.00 648.50 323.50 41.50 11.50 3.00 0.50 39.50 456.00 798.50 850.50 5558.00
1958 867.00 565.50 674.00 413.50 54.00 0.00 0.00 0.00 111.00 379.00 723.50 937.00 4724.50
1959 1018.00 827.00 569.00 337.50 232.00 27.00 7.00 6.00 113.00 396.00 864.50 966.50 5363.50
1960 1284.50 792.50 643.00 393.00 207.00 18.00 0.00 17.50 52.50 352.50 736.00 1087.50 5584.00
1961 960.00 599.00 606.50 374.50 176.50 11.00 0.00 0.00 a 121.50 483.00 933.50 1017.00 5282.50
1962 1082.50 791.50 719.50 292.50 260.00 44.00 12.50 10.00 99.00 0.00 z 647.00 883.00 4841.50
1963 1186.50 740.00 550.50 457.00 181.50 28.00 5.00 5.00 34.00 301.50 672.50 1059.00 5220.50
1964 920.00 779.00 649.50 430.50 182.50 17.00 0.00 20.50 113.00 395.00 804.00 1195.57 a 5506.57
1965 991.00 682.50 680.00 301.50 158.50 17.00 6.00 12.00 106.00 286.50 670.50 1001.00 4912.50
1966 992.50 714.00 635.00 337.00 133.00 52.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2864.00
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 164.50 474.00 774.00 1096.50 2509.00
1971 949.50 721.50 760.50 427.00 126.50 69.00 20.50 2.00 170.00 448.00 758.50 1121.00 5574.00
1972 1101.50 893.82 a 569.50 465.00 141.05 a 22.20 e 17.00 3.00 187.50 435.00 750.50 1154.50 5740.57
1973 1121.50 783.00 558.50 340.50 147.00 44.00 3.50 14.00 67.00 396.00 830.50 866.00 5171.50
1974 1111.50 694.50 634.00 352.00 229.50 32.50 5.50 0.00 64.50 414.00 692.50 889.50 5120.00
1975 1051.50 910.50 730.00 513.50 171.03 b 18.00 f 0.00 g 6.00 59.50 384.00 737.50 962.50 5526.03
1976 1009.50 766.00 696.00 410.00 140.00 72.00 3.00 13.00 38.00 456.50 769.50 1061.50 5435.00
1977 1235.50 714.00 615.00 271.55 a 228.50 22.00 4.00 7.00 153.50 432.00 804.00 951.50 5438.55
1978 1022.00 794.00 562.50 365.00 199.00 9.00 0.00 a 12.00 96.50 447.00 958.50 1136.50 5602.00
1979 1548.50 914.50 601.00 429.50 104.00 0.00 z 14.00 0.00 27.00 299.50 926.50 890.50 5755.00
1980 1292.50 912.00 623.00 296.00 174.00 60.00 12.00 20.00 81.00 415.00 730.00 923.00 5538.50
1981 834.00 739.93 a 535.50 373.00 178.50 47.00 16.00 0.00 121.00 444.33 a 693.00 1035.00 5017.26
1982 1137.50 799.00 635.00 512.50 214.50 24.00 9.50 0.00 93.50 472.50 858.00 1023.50 5779.50
1983 861.50 706.00 530.50 444.00 162.50 21.00 11.50 0.00 161.00 467.00 653.50 1372.00 5390.50
1984 1016.50 769.00 568.50 434.50 295.50 69.00 0.00 3.00 184.00 517.50 793.00 1305.50 5956.00
1985 1207.50 1037.00 696.00 324.50 139.50 10.00 0.00 9.00 216.00 479.50 1168.00 1418.50 6705.50
1986 1031.50 805.00 526.50 415.50 214.50 9.50 18.50 0.00 174.50 379.00 684.00 1052.00 5310.50
1987 1129.00 734.00 591.00 305.50 112.50 44.50 2.50 4.00 82.50 436.50 696.50 1087.00 5225.50
1988 1065.00 784.00 646.00 342.50 198.50 94.00 6.00 1.50 132.00 273.00 663.50 1087.50 5293.50
1989 931.50 1094.00 694.50 314.50 186.00 10.00 7.00 2.00 73.00 408.50 639.50 1002.00 5362.50
1990 810.50 844.50 614.50 269.00 183.50 59.50 5.50 1.50 8.00 441.50 621.00 1292.50 5151.50
1991 1168.50 649.50 702.50 373.00 202.50 75.50 0.00 0.50 51.50 442.50 751.50 857.00 5274.50
1992 885.00 710.50 0.00 z 0.00 z 131.50 23.00 0.00 z 27.00 160.50 382.50 740.00 1156.50 4216.50
1993 1300.50 975.00 738.50 397.50 80.00 25.50 3.50 30.00 132.50 351.50 921.50 943.50 5899.50
1994 846.50 821.00 578.50 259.50 112.50 32.00 0.50 0.00 22.00 391.00 792.00 977.00 4832.50
1995 997.50 625.50 620.00 407.00 126.00 39.00 0.00 12.00 62.00 438.00 686.50 1003.00 5016.50
1996 1214.00 989.50 676.00 338.50 244.00 28.00 4.00 0.50 129.00 439.00 857.00 1190.40 a 6109.90
1997 1066.00 771.50 583.00 435.00 131.00 22.00 0.00 0.00 55.00 394.50 730.50 969.00 5157.50
1998 970.50 663.00 557.00 382.00 140.00 0.50 0.00 0.00 24.50 421.50 609.00 1016.50 4784.50
1999 830.50 645.50 585.50 407.50 238.00 49.00 8.00 7.50 103.00 432.00 584.50 831.50 4722.50
2000 1012.00 776.50 625.50 283.50 130.00 28.00 4.50 0.50 140.50 423.00 947.50 1117.00 5488.50
2001 997.00 842.50 580.50 410.00 152.00 49.50 0.00 0.00 52.00 420.00 661.00 926.50 5091.00
2002 858.00 751.00 732.00 385.00 210.00 29.00 3.50 0.00 z 78.50 500.00 757.50 847.50 5152.00
2003 842.50 706.50 515.50 378.00 197.50 3.00 0.00 0.00 48.50 259.50 863.50 984.50 4799.00
2004 1064.00 821.50 469.50 321.50 134.00 42.00 0.00 1.00 59.50 299.00 753.50 882.00 4847.50
2005 1083.00 783.50 506.50 339.50 90.00 23.50 0.00 0.50 89.00 344.00 793.50 1130.50 5183.50
2006 828.50 803.50 643.00 389.00 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 2664.00
Period of Record Statistics
MEAN 1050.12 791.67 626.63 376.77 165.80 35.84 5.27 5.63 94.83 403.02 772.25 1031.99 5352.18
S.D. 170.84 117.38 74.10 65.33 53.56 24.99 6.17 7.51 49.84 64.97 116.88 139.76 437.99
SKEW 0.64 0.79 0.30 0.31 -0.02 0.89 1.19 1.58 0.42 -0.75 0.90 0.73 0.71
MAX 1548.50 1128.00 817.50 539.00 295.50 110.50 22.00 30.00 216.00 517.50 1168.00 1418.50 6705.50
MIN 710.00 565.50 469.50 259.50 41.50 0.00 0.00 0.00 8.00 240.00 584.50 819.00 4524.00
NO YRS 51 51 50 50 50 47 46 47 51 50 51 51 43