HATTON 9 SE, WASHINGTON

Monthly Total Heating Degree Days

(453546)

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
1948 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 31.00 56.50 20.67 a 202.50 528.50 814.50 1295.28 a 2948.95
1949 1706.50 1016.00 714.00 410.50 184.50 107.50 17.50 32.00 129.00 612.50 674.50 990.45 a 6594.95
1950 1694.50 1028.00 771.00 547.00 317.50 102.50 11.00 6.00 115.50 504.00 798.50 924.00 6819.50
1951 1050.50 845.00 274.00 t 445.50 226.50 72.50 13.50 35.00 118.50 494.00 809.00 1245.00 5355.00
1952 1280.50 829.50 754.69 b 391.50 148.50 f 91.67 c 20.00 32.50 92.59 a 337.50 1046.00 1042.00 5918.44
1953 782.00 577.00 f 664.00 501.00 318.78 a 176.50 7.00 23.00 101.79 b 417.47 a 634.00 879.50 4505.04
1954 1159.50 791.54 b 804.50 554.00 226.50 164.44 c 23.50 32.03 a 150.00 d 506.00 601.73 d 1009.64 b 6023.39
1955 1133.50 888.00 869.07 b 609.50 372.00 a 64.66 a 26.41 d 12.50 168.50 h 418.50 d 1025.17 a 1139.80 c 6559.11
1956 1060.20 a 1191.69 b 736.50 346.03 a 208.06 e 111.21 a 1.55 a 19.50 88.80 e 502.64 c 941.90 a 1000.02 b 6208.09
1957 1550.50 933.00 706.28 a 453.10 a 146.14 c 55.50 g 20.00 g 40.50 h 62.50 f 421.00 g 796.07 b 838.07 b 5423.17
1958 896.33 b 575.00 732.50 520.34 a 148.36 c 23.08 d 2.58 a 1.50 r 192.93 a 457.54 d 774.83 a 950.48 c 5273.97
1959 1004.29 b 835.33 a 679.93 a 440.69 a 361.50 90.52 a 35.13 a 43.00 203.57 b 474.30 a 904.14 a 1043.00 6115.41
1960 1351.00 847.00 744.00 b 453.46 d 351.16 b 96.43 b 0.00 b 91.21 e 133.39 b 430.56 d 746.11 c 911.50 f 5244.32
1961 982.91 b 631.56 a 643.52 b 491.38 a 276.33 b 9.50 q 4.00 f 3.62 a 195.58 d 507.62 c 1014.11 b 1058.43 c 5805.05
1962 1103.60 a 805.00 741.33 b 387.22 c 404.11 c 104.50 m 59.86 b 23.50 f 99.00 h 490.66 b 688.93 b 878.69 b 5559.39
1963 1283.29 b 761.50 540.50 f 527.07 a 274.23 e 102.93 a 32.15 d 36.74 d 37.00 f 370.21 e 551.00 g 1106.18 a 4494.31
1964 944.35 d 819.85 e 617.00 g 565.38 d 174.00 j 80.50 i 7.00 g 78.61 c 147.00 f 445.92 e 842.31 d 726.00 l 3696.43
1965 595.00 n 515.50 h 590.00 h 241.50 i 242.00 f 75.00 a 28.70 d 31.00 c 227.31 d 281.50 f 672.78 c 663.00 j 1034.79
1966 980.63 a 738.96 e 675.44 e 465.52 a 193.00 h 141.92 d 23.25 e 29.85 d 60.00 c 365.50 f 683.33 c 854.50 4653.41
1967 844.00 690.48 c 727.93 d 609.50 261.00 g 52.78 c 3.88 c 0.00 12.00 i 235.50 j 796.67 c 1086.72 d 4811.95
1968 965.43 c 730.22 d 413.00 j 570.52 a 158.00 q 87.50 f 12.50 l 41.00 j 128.65 d 518.50 761.00 1091.50 4765.82
1969 1490.50 969.50 720.23 a 466.50 182.00 42.00 15.00 47.50 151.00 576.00 778.00 1010.00 6448.23
1970 1085.00 719.50 732.50 606.50 273.00 32.00 i 4.50 10.00 228.50 534.00 781.00 1031.50 6006.00
1971 935.50 786.50 815.50 530.50 216.00 162.00 50.50 7.00 241.00 524.50 789.00 1101.00 6159.00
1972 1105.50 893.00 630.50 564.50 205.00 61.50 10.00 6.50 248.50 475.50 769.00 1248.00 6217.50
1973 1097.50 783.50 655.00 495.00 226.50 88.50 15.00 33.00 100.50 448.50 825.00 905.50 5673.50
1974 1248.00 730.69 b 707.50 475.50 293.93 d 70.86 a 23.50 9.00 76.00 452.00 722.50 900.00 5709.48
1975 1088.00 914.50 778.00 590.00 292.29 c 94.50 1.50 28.00 93.00 445.50 814.50 979.00 6118.79
1976 951.50 806.00 772.50 453.50 203.00 124.00 15.50 47.00 40.50 487.00 806.00 1056.00 5762.50
1977 1310.50 726.00 692.50 319.00 278.50 28.00 14.50 24.00 200.50 431.50 806.00 968.50 5799.50
1978 1078.50 751.00 573.00 439.50 214.00 42.50 3.62 a 17.00 131.50 476.00 975.50 1192.50 5894.62
1979 1610.50 860.00 578.00 456.50 193.00 76.50 17.00 0.00 54.00 354.50 915.00 878.50 5993.50
1980 1288.00 851.00 713.50 352.00 220.50 118.50 10.00 50.00 94.00 463.50 753.10 a 911.00 5825.10
1981 882.50 752.50 620.50 469.66 a 290.50 101.79 b 34.00 6.00 154.00 488.00 713.50 1028.00 5540.94
1982 1211.50 791.50 716.00 568.50 283.50 61.50 23.50 3.50 150.50 495.00 899.50 1020.50 6225.00
1983 849.00 670.00 590.50 527.00 262.00 91.00 39.00 0.00 197.00 445.00 678.50 1369.00 5718.00
1984 1051.00 802.50 614.50 548.50 372.00 120.00 1.50 4.50 200.50 561.00 783.00 1236.50 6295.50
1985 1293.73 a 991.00 711.00 381.50 201.50 62.50 0.00 18.50 258.50 496.00 1229.00 1486.00 7129.23
1986 1032.00 821.00 569.50 496.50 262.00 25.00 42.00 0.00 228.00 389.00 794.50 525.50 p 4659.50
1987 1159.50 763.50 612.00 326.50 170.50 54.50 34.00 13.50 66.00 375.00 604.50 1034.00 5213.50
1988 1045.50 699.50 639.00 339.00 235.50 103.00 16.50 3.50 154.50 254.00 701.50 1103.50 5295.00
1989 948.50 1125.50 725.00 341.00 253.50 33.50 9.00 26.00 61.50 421.50 669.50 1054.50 5669.00
1990 870.50 856.50 610.00 320.00 252.50 88.50 7.50 12.00 9.50 475.50 652.50 1261.00 5416.00
1991 1155.50 613.00 726.00 448.50 292.00 136.00 1.50 1.00 43.00 440.00 786.50 916.00 5559.00
1992 867.00 673.50 488.00 364.50 121.00 27.00 8.00 23.00 114.00 329.50 743.50 1055.50 4814.50
1993 1256.50 993.50 704.50 433.00 129.00 71.00 11.50 26.00 126.00 342.00 958.00 885.50 5936.50
1994 682.50 790.50 522.50 323.50 163.00 71.50 9.50 0.50 38.00 437.50 830.00 954.50 4823.50
1995 979.00 678.00 649.50 468.50 179.50 85.50 1.50 0.00 z 52.00 484.00 661.00 1039.50 5278.00
1996 1114.00 957.50 691.00 382.50 329.50 36.00 8.00 2.50 132.00 426.00 791.00 1074.50 5944.50
1997 1005.00 743.50 582.00 433.50 130.50 5.50 z 14.50 0.00 75.00 461.50 735.00 1022.00 5202.50
1998 941.50 658.00 616.00 425.50 239.00 37.00 0.00 5.50 45.00 449.50 651.00 1007.00 5075.00
1999 849.29 b 716.59 a 648.50 493.00 331.50 113.57 b 23.77 a 13.50 130.86 a 444.52 c 604.00 897.50 5266.60
2000 995.50 802.50 684.00 328.50 233.50 59.00 20.67 a 28.42 a 192.78 c 467.58 a 973.89 c 1175.00 5961.33
2001 1083.40 b 857.23 b 632.40 a 543.75 b 229.92 a 126.43 b 16.69 e 5.68 a 67.24 a 453.08 e 701.00 987.72 b 5704.54
2002 905.00 759.50 780.00 454.00 295.00 68.50 10.00 13.00 118.00 536.50 759.50 871.50 5570.50
2003 871.50 752.50 560.00 454.00 274.50 40.50 3.50 0.00 88.00 293.50 879.50 998.50 5216.00
2004 1193.00 847.50 505.50 369.00 236.00 87.50 3.50 4.50 116.00 379.50 683.50 890.00 5315.50
2005 1048.50 747.50 536.50 395.00 166.00 0.00 z 0.00 2.00 99.00 268.00 552.00 911.00 4725.50
2006 0.00 z 744.50 587.45 a 408.50 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 1740.45
Period of Record Statistics
MEAN 1095.60 809.96 672.74 457.57 246.02 82.29 16.35 19.23 129.15 449.96 785.89 1035.06 5812.24
S.D. 219.23 121.11 83.17 82.80 67.93 38.09 14.64 19.45 63.20 72.92 127.01 137.28 511.16
SKEW 0.99 0.87 -0.15 0.03 0.22 0.44 1.16 1.56 0.30 -0.64 0.94 1.05 0.24
MAX 1706.50 1191.69 869.07 609.50 404.11 176.50 59.86 91.21 258.50 612.50 1229.00 1486.00 7129.23
MIN 682.50 575.00 488.00 319.00 121.00 23.08 0.00 0.00 9.50 254.00 552.00 838.07 4814.50
NO YRS 56 56 53 57 51 50 54 53 52 54 57 54 37