HATTON 9 SE, WASHINGTON

Monthly Total Heating Degree Days

(453546)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 201302
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
1905 0.00 z 467.00 i 484.50 274.00 196.52 c 37.00 7.00 33.50 113.50 567.50 810.00 1063.00 3586.52
1906 1049.00 753.00 723.00 306.72 a 227.00 111.50 0.00 17.50 143.50 382.50 815.50 1021.34 c 5550.56
1907 1420.00 866.50 718.00 502.50 159.00 115.00 19.00 75.50 148.00 250.67 b 678.00 921.00 5873.17
1908 969.00 845.00 680.50 393.50 271.50 106.50 3.00 52.50 137.50 418.50 640.00 1083.00 5600.50
1909 1359.50 732.50 626.00 525.50 286.00 61.00 15.50 15.50 108.50 420.50 705.50 1230.50 6086.50
1910 1153.00 1019.50 504.50 302.00 176.50 93.50 5.50 96.50 156.50 385.00 764.50 958.00 5615.00
1911 1089.00 942.50 624.50 522.50 347.50 90.00 a 19.50 8.00 219.50 496.00 861.50 1084.00 6304.50
1912 1248.00 786.00 762.00 465.00 225.00 75.00 36.17 a 72.50 205.50 571.50 720.00 a 954.50 6121.17
1913 1320.48 e 1137.00 801.50 426.00 255.00 61.00 48.00 33.00 125.50 g 572.00 706.00 1114.00 6473.98
1914 870.07 a 868.50 606.00 398.50 158.50 126.00 9.00 5.50 193.00 389.00 735.52 a 1279.50 5639.08
1915 1215.50 698.00 548.50 318.50 220.00 84.00 21.50 0.00 a 168.50 377.00 848.50 1022.50 5522.50
1916 1567.00 999.50 684.50 446.00 345.50 138.00 50.50 24.50 119.00 513.50 979.00 1237.50 7104.50
1917 1184.50 916.50 882.00 536.00 284.50 167.00 12.00 0.50 109.00 404.50 669.00 845.00 6010.50
1918 952.00 886.00 651.50 410.00 304.50 32.00 23.00 70.27 a 26.50 359.50 783.00 1005.50 5503.77
1919 1085.00 651.00 g 680.50 418.50 265.50 136.00 14.50 2.00 144.00 613.50 638.50 g 1445.00 4804.50
1920 1184.50 925.50 708.50 544.50 353.50 156.00 6.00 53.98 b 151.50 492.50 783.00 953.00 6312.48
1921 980.50 803.50 658.75 a 528.00 245.00 57.32 b 18.50 13.00 259.50 404.19 e 806.50 1142.00 5916.76
1922 1509.50 1101.50 790.00 557.00 315.37 e 3.00 k 0.00 17.50 95.00 423.67 a 893.65 d 189.00 y 5703.19
1923 906.50 1093.00 705.50 409.50 256.00 125.00 15.50 2.50 104.50 425.50 734.50 979.50 5757.50
1924 1238.50 641.00 732.00 488.28 a 122.50 43.00 11.00 29.50 154.50 433.00 853.00 1320.50 6066.78
1925 1009.50 654.50 667.50 351.00 186.00 88.50 0.00 50.00 128.00 517.50 880.00 889.50 5422.00
1926 1033.50 652.50 581.00 299.00 247.00 51.50 1.50 13.00 285.00 433.50 730.86 a 1087.50 5415.86
1927 1157.00 774.00 727.00 515.00 357.00 42.32 b 4.00 29.00 207.00 458.28 a 706.50 1234.50 6211.60
1928 1183.50 890.63 c 623.50 528.00 168.00 72.00 6.50 8.27 a 130.50 445.00 768.50 1079.50 5903.90
1929 1433.00 1318.59 a 663.00 541.00 264.57 b 90.50 12.50 11.50 200.00 376.65 a 945.00 960.50 6816.81
1930 1681.00 715.00 634.50 340.00 275.50 121.00 7.50 1.00 140.50 566.00 839.00 1130.00 6451.00
1931 958.50 828.07 a 679.50 460.00 176.18 a 96.00 7.50 3.50 167.07 a 469.50 914.48 a 1180.00 5940.31
1932 1161.00 976.00 721.86 c 402.93 a 275.50 86.00 33.00 46.00 141.00 442.00 674.50 1169.00 6128.79
1933 990.00 1186.50 717.50 483.00 395.50 112.50 d 7.00 21.00 240.50 355.47 a 761.00 815.50 6085.47
1934 822.00 707.50 524.00 271.00 191.50 62.50 16.50 8.00 237.50 387.00 601.15 d 324.00 t 3828.65
1935 1007.50 803.50 783.00 574.50 266.50 87.00 32.50 37.00 86.00 533.50 975.00 1073.00 6259.00
1936 1003.50 1392.50 750.00 363.00 119.50 71.00 1.00 8.50 154.66 a 381.82 a 992.50 993.50 6231.47
1937 1683.00 1009.00 627.50 511.50 218.55 a 87.00 6.00 68.20 a 129.00 335.00 692.00 941.07 c 6307.82
1938 983.00 856.00 707.50 449.00 277.50 55.00 7.00 26.00 42.93 a 386.47 a 875.00 984.50 5649.90
1939 921.00 946.00 647.38 a 408.62 a 210.50 149.50 16.50 8.50 110.50 467.58 a 761.25 b 836.00 5483.34
1940 1081.50 793.00 584.00 418.50 159.65 a 53.50 2.00 7.00 57.50 325.00 979.00 977.50 5438.15
1941 1062.00 724.00 381.50 k 371.50 265.00 94.00 0.50 41.50 237.00 515.50 718.00 902.50 4931.50
1942 1360.00 855.00 720.75 a 421.03 a 317.50 137.59 a 11.00 34.62 a 88.00 403.50 853.00 1023.00 6224.99
1943 1292.00 858.00 799.00 397.50 382.00 172.50 22.50 17.10 b 74.50 427.50 817.00 1077.50 6337.10
1944 1105.00 897.00 783.50 453.50 235.71 b 77.00 15.50 a 17.57 a 107.07 a 297.50 834.83 a 1123.50 5947.67
1945 954.00 777.50 769.83 a 566.50 234.05 a 125.17 a 4.50 12.06 d 195.50 364.50 799.66 a 1084.50 5887.77
1946 962.00 765.33 a 694.92 a 452.50 187.03 a 118.00 13.00 7.23 a 183.75 b 597.00 900.50 988.38 a 5869.65
1947 1227.00 761.50 603.43 b 439.00 114.50 94.50 6.50 30.00 139.00 438.50 805.50 983.50 5642.93
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 744.50 587.50 403.50 226.50 42.00 7.75 e 11.50 112.50 478.00 776.50 1125.50 4515.75
2007 1149.00 799.00 569.00 451.50 187.00 80.00 0.00 8.50 135.00 466.00 793.00 1022.00 5660.00
2008 0.00 z 785.50 738.00 564.50 201.50 113.50 2.00 18.00 78.00 340.50 f 703.00 1229.50 4433.50
2009 1076.00 835.00 780.00 486.50 224.50 40.50 3.50 7.50 71.79 b 547.31 b 743.00 1244.50 6060.10
2010 846.00 673.00 622.50 437.50 353.00 106.50 20.00 34.50 100.50 406.00 865.50 1013.50 5478.50
2011 999.23 a 842.80 c 671.84 b 600.54 b 333.52 b 130.96 d 14.47 a 2.58 a 31.73 d 437.88 c 777.93 a 1101.61 c 5945.09
2012 1019.68 c 810.93 b 665.47 a 392.14 b 242.83 a 114.44 c 2.77 c 0.00 z 0.00 z 0.00 z 0.00 z 472.50 p 3248.26
2013 444.50 s 754.32 c 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 754.32
Period of Record Statistics
MEAN 1114.71 836.68 676.08 450.94 246.09 87.89 14.45 21.88 134.85 445.66 791.10 1047.76 5882.53
S.D. 214.18 144.30 82.84 83.41 68.25 37.21 13.37 21.28 61.20 76.12 112.65 134.95 449.15
SKEW 0.94 1.28 -0.17 -0.09 0.20 0.29 1.35 1.42 0.29 -0.19 0.75 0.80 0.27
MAX 1706.50 1392.50 882.00 609.50 404.11 176.50 59.86 96.50 285.00 613.50 1229.00 1486.00 7129.23
MIN 682.50 575.00 484.50 271.00 114.50 23.08 0.00 0.00 9.50 250.67 552.00 815.50 4814.50
NO YRS 103 104 101 106 101 99 104 102 100 102 105 101 78