OTHELLO 6 ESE, WASHINGTON

Monthly Total Heating Degree Days

(456215)

Base Temperature = 65 F

File last updated on Apr 4, 2013
*** Note *** Provisional Data *** After Year/Month 200210
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
1941 0.00 z 0.00 z 577.00 360.00 235.00 53.50 0.00 36.50 186.00 484.50 710.50 933.00 3576.00
1942 1312.00 851.50 709.50 402.00 281.00 105.00 8.50 23.50 68.00 398.00 0.00 z 0.00 z 4159.00
1943 800.50 o 803.50 814.00 369.00 335.50 137.50 9.50 18.37 d 53.50 432.50 0.00 z 670.00 m 2973.37
1944 1152.00 880.50 755.00 433.00 204.50 62.00 13.50 2.67 b 96.72 a 294.50 818.00 1126.50 5838.90
1945 970.50 752.50 756.00 537.00 206.50 104.00 9.50 19.50 165.50 354.00 820.00 1079.00 5774.00
1946 996.00 773.00 662.50 435.50 160.00 118.00 6.00 18.00 163.50 583.50 939.00 998.00 5853.00
1947 1223.50 786.00 591.50 383.00 98.00 69.50 2.00 29.00 108.50 420.50 810.50 1015.50 5537.50
1948 1095.50 999.50 806.00 584.00 342.50 22.00 37.00 36.00 193.50 493.50 785.50 1326.00 6721.00
1949 1737.50 1021.50 687.50 349.00 139.00 76.50 15.50 25.00 85.00 544.00 646.00 996.00 6322.50
1950 1072.00 l 768.00 i 756.63 d 495.00 243.00 72.50 2.50 0.00 90.00 441.00 761.00 950.00 3811.63
1951 1024.50 866.00 859.00 433.50 219.58 a 59.50 7.00 20.50 75.00 471.00 845.50 1207.40 b 6088.48
1952 1310.50 857.50 709.50 360.00 159.50 77.50 9.50 18.50 64.50 274.00 964.82 b 986.00 5791.82
1953 738.50 699.50 617.50 460.50 268.00 128.50 1.55 a 17.50 1.50 u 174.00 m 248.00 t 518.00 k 2931.55
1954 625.00 n 524.50 i 574.00 i 489.81 d 118.50 k 135.00 b 12.50 k 16.50 k 130.71 b 513.22 d 620.69 a 1030.00 2919.43
1955 1153.50 879.50 851.50 574.29 b 303.80 a 48.62 a 42.50 4.13 a 137.50 365.36 c 1038.10 a 1157.50 6556.30
1956 1053.50 1145.50 691.00 322.00 122.50 84.00 0.00 10.00 72.50 454.00 887.00 980.00 5822.00
1957 1552.00 917.50 691.50 389.50 73.00 27.00 3.00 3.00 40.00 465.00 781.00 827.50 5770.00
1958 890.50 586.00 705.00 440.50 71.00 12.00 0.50 1.00 120.50 400.00 757.50 961.50 4946.00
1959 1033.50 843.00 622.00 365.50 286.50 45.00 13.50 16.50 150.50 422.12 a 870.00 a 1011.24 b 5679.36
1960 1354.50 838.50 681.50 425.00 266.00 37.50 0.00 46.00 77.00 365.50 737.00 1115.45 c 5943.95
1961 974.84 c 612.00 612.50 435.50 206.50 19.00 0.00 0.00 147.50 466.50 919.50 1007.00 5400.84
1962 1094.00 809.00 735.50 334.50 292.00 68.50 20.50 8.00 75.00 417.00 660.00 890.00 5404.00
1963 1215.50 772.50 608.00 469.00 202.50 48.50 7.00 8.50 34.00 305.00 687.00 1098.50 5456.00
1964 945.00 788.50 707.00 474.50 229.50 36.50 5.50 35.00 127.50 388.00 824.00 1235.87 a 5796.87
1965 1065.00 716.00 723.50 349.50 207.00 38.00 11.50 17.00 150.00 313.00 693.50 1023.50 5307.50
1966 997.50 755.00 649.50 388.50 146.50 79.50 24.00 f 23.00 h 69.50 i 477.06 d 734.50 906.50 5134.56
1967 853.50 714.00 755.50 621.00 338.00 52.00 7.00 5.00 61.50 459.50 800.00 1040.50 5707.50
1968 998.50 738.00 608.50 562.00 284.50 99.50 22.00 71.50 137.00 580.50 801.72 a 1175.93 a 6079.66
1969 1553.50 1073.50 742.00 496.50 219.00 75.00 47.50 56.00 162.00 576.50 791.25 b 1029.00 6821.75
1970 1132.00 732.00 748.02 d 584.50 288.00 82.50 18.50 16.50 279.50 535.00 795.50 1088.62 a 6300.64
1971 950.00 765.00 813.00 521.00 222.50 188.50 67.50 20.00 266.00 543.00 793.50 1158.50 6308.50
1972 1128.00 937.50 647.00 583.50 234.00 92.50 33.00 21.00 267.50 482.00 773.50 1223.50 6423.00
1973 1124.00 818.50 643.00 450.50 250.00 144.44 c 26.35 a 55.50 149.50 468.00 854.00 900.00 5883.79
1974 1236.00 740.00 713.50 479.00 350.50 87.00 47.50 22.50 97.50 455.00 727.00 904.00 5859.50
1975 1083.00 933.50 775.50 596.50 280.00 123.50 4.00 43.50 123.00 472.00 797.59 a 1009.05 a 6241.14
1976 1036.50 822.00 787.00 485.00 262.00 167.50 20.00 68.50 71.00 497.50 770.50 1090.50 6078.00
1977 1285.50 739.50 709.50 374.50 360.50 43.00 62.50 32.50 212.00 486.00 848.00 1001.00 6154.50
1978 1075.00 788.50 598.00 483.50 325.50 85.00 15.50 65.00 200.50 499.00 1013.50 1169.50 6318.50
1979 1595.50 918.50 659.00 504.00 220.50 95.50 42.50 7.50 93.50 380.00 976.00 935.00 6427.50
1980 1382.00 959.50 737.50 393.00 252.00 174.50 43.50 72.00 147.00 489.50 783.00 958.00 6391.50
1981 903.50 791.50 622.00 518.50 298.00 164.00 54.00 11.00 177.00 531.00 736.50 1063.50 5870.50
1982 1236.00 829.50 712.00 570.50 301.50 87.00 61.00 17.00 173.00 521.00 920.50 1080.87 a 6509.87
1983 886.00 710.00 580.00 495.50 249.00 136.00 69.50 10.00 239.50 494.00 666.50 1392.00 5928.00
1984 1107.73 a 796.50 617.00 537.00 401.00 146.50 13.00 21.50 229.00 567.50 806.50 1243.10 a 6486.33
1985 1272.50 906.89 a 723.00 413.28 a 230.00 87.00 0.50 44.00 277.00 543.50 1232.59 a 1414.00 7144.25
1986 1084.50 790.00 468.00 f 482.59 a 0.00 z 0.00 z 0.00 z 0.00 201.00 382.50 721.50 1066.50 4728.59
1987 1113.93 a 0.00 z 565.00 311.00 184.00 60.50 0.00 z 20.50 82.00 428.50 711.72 a 1057.62 a 4534.77
1988 1031.00 726.50 591.00 387.00 248.00 112.00 31.00 12.50 173.00 267.50 655.50 1038.00 5273.00
1989 0.00 z 1095.50 723.50 0.00 z 260.50 49.50 17.50 24.00 0.00 z 440.20 a 624.50 986.50 4221.70
1990 814.00 822.00 636.57 b 355.50 286.50 112.50 17.00 17.50 27.00 0.00 z 612.93 a 1233.50 4935.00
1991 1167.50 0.00 z 676.50 431.00 279.00 142.00 0.00 z 7.00 0.00 z 449.00 758.00 883.00 4793.00
1992 0.00 z 658.00 506.50 368.00 158.50 33.50 9.50 30.50 177.00 395.50 786.50 1152.00 4275.50
1993 1413.71 b 1067.00 836.00 494.50 174.00 158.50 95.00 66.00 178.00 400.50 962.00 991.00 6836.21
1994 880.00 0.00 z 628.00 395.00 0.00 z 0.00 z 35.50 21.00 94.00 506.50 867.00 1004.00 4431.00
1995 1050.00 700.52 a 715.00 502.50 183.00 115.00 0.00 z 0.00 z 0.00 z 481.00 716.50 1116.00 5579.52
1996 0.00 z 1011.38 a 746.00 445.50 414.00 161.50 32.50 54.00 248.79 a 555.50 884.46 b 1250.50 5804.13
1997 1148.55 a 830.00 691.00 0.00 z 233.00 167.50 44.50 4.00 75.00 0.00 z 774.50 1039.00 5007.05
1998 998.20 a 726.00 688.00 556.50 293.50 54.00 0.00 16.00 55.50 433.00 655.18 b 1016.00 5491.88
1999 809.00 677.50 513.00 f 528.50 403.50 202.50 65.00 20.00 m 215.69 a 491.87 a 0.00 z 0.00 z 3393.56
2000 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
2001 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
2002 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
Period of Record Statistics
MEAN 1119.98 825.90 692.40 455.90 246.12 92.37 23.19 24.50 138.93 452.76 798.70 1064.95 6013.30
S.D. 207.67 122.08 77.40 79.82 76.82 47.53 22.86 19.87 67.58 77.01 116.65 125.95 477.67
SKEW 0.84 0.66 0.06 0.15 -0.09 0.40 1.09 0.99 0.38 -0.51 1.07 0.74 0.14
MAX 1737.50 1145.50 859.00 621.00 414.00 202.50 95.00 72.00 279.50 583.50 1232.59 1414.00 7144.25
MIN 738.50 586.00 506.50 311.00 71.00 12.00 0.00 0.00 27.00 267.50 612.93 827.50 4946.00
NO YRS 52 53 56 57 56 57 53 55 54 56 55 55 41