LAKE CLE ELUM, WASHINGTON

Monthly Total Heating Degree Days

(454394)

Base Temperature = 65 F

File last updated on Jul 25, 2006
*** Note *** Provisional Data *** After Year/Month 197708
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 159.50 149.00 132.00 302.00 637.00 871.00 1268.50 3519.00
1949 1642.00 1106.50 908.00 615.00 338.50 273.00 148.00 104.50 226.50 651.00 699.50 1069.50 7782.00
1950 1706.50 1085.50 1030.00 791.00 532.00 264.50 90.50 64.00 191.50 643.00 888.50 970.00 8257.00
1951 1179.50 996.00 1019.00 604.00 447.00 166.50 65.50 86.00 218.50 595.50 903.00 1163.00 7443.50
1952 1391.50 1035.00 935.00 628.00 495.00 301.50 115.50 137.50 181.50 413.50 966.00 1097.00 7697.00
1953 943.43 a 865.50 866.00 736.15 d 535.50 387.50 133.00 126.77 c 235.00 f 533.00 808.50 929.50 6864.85
1954 1232.50 953.62 b 1008.50 736.50 468.00 396.50 155.00 198.50 288.00 635.50 715.50 1103.50 7891.62
1955 1082.50 991.50 1111.00 826.00 587.00 290.50 230.00 132.50 294.50 634.50 1123.97 a 1242.50 8546.47
1956 1231.00 1238.00 1047.00 653.50 388.50 342.00 90.50 123.50 310.50 673.00 947.50 1056.50 8101.50
1957 1505.57 a 1003.85 a 930.00 624.00 329.00 219.50 199.50 166.00 182.50 685.50 910.50 1005.50 7761.42
1958 1047.00 793.50 917.50 688.00 256.50 144.00 31.50 38.50 320.00 578.00 963.50 1028.00 6806.00
1959 1127.50 967.17 d 923.50 643.50 557.50 311.50 113.50 142.50 392.00 586.50 929.50 1057.50 7752.17
1960 1252.00 978.50 970.00 676.00 544.50 250.50 65.50 189.62 a 287.00 566.00 907.00 1169.50 7856.12
1961 1107.50 835.33 d 864.00 705.00 495.50 161.50 91.50 24.50 f 280.00 i 688.50 1065.00 1155.30 c 7169.14
1962 1197.50 917.50 964.50 624.50 603.50 280.00 174.50 157.30 d 176.50 j 597.50 825.50 990.50 7332.80
1963 1194.50 790.50 864.50 723.50 466.00 292.00 150.50 103.33 a 182.50 564.00 874.00 1171.00 7376.33
1964 1064.50 951.30 a 953.80 c 751.50 534.50 296.00 137.50 213.50 382.50 624.00 917.00 1264.50 8090.61
1965 1075.50 882.00 910.50 634.50 398.50 g 235.71 b 79.50 126.00 337.50 560.00 773.50 1108.50 6723.21
1966 1162.50 913.00 934.00 628.00 417.98 a 310.50 134.00 107.00 190.34 a 639.50 815.50 953.00 7205.33
1967 962.50 830.50 911.00 763.00 455.00 143.00 50.50 25.00 134.00 604.00 856.00 1110.50 6845.00
1968 1108.00 879.00 776.00 721.50 455.00 251.00 85.00 179.50 281.50 702.50 887.50 1253.50 7580.00
1969 1461.00 1072.50 926.50 692.50 349.50 123.50 130.50 166.00 277.00 689.00 821.00 1087.00 7796.00
1970 1223.50 872.85 b 899.00 785.50 472.50 169.50 90.50 81.50 419.00 665.50 929.48 a 1201.25 a 7810.08
1971 1088.00 893.50 1058.00 731.00 433.50 355.50 120.50 49.50 373.00 658.50 854.00 0.00 z 6615.00
1972 1168.81 d 1038.42 c 902.50 755.89 b 393.00 244.00 110.00 92.00 447.00 636.05 c 0.00 z 1033.00 g 5787.68
1973 1282.00 922.00 853.50 659.00 425.00 0.00 z 99.50 141.00 299.00 636.00 1001.00 996.00 7314.00
1974 870.50 h 865.50 912.50 715.50 579.00 239.50 151.50 97.65 a 206.50 589.00 828.50 973.50 6158.65
1975 1132.50 1042.00 972.00 793.00 519.00 296.50 80.00 205.12 a 252.78 c 0.00 z 935.00 1029.00 7256.89
1976 1080.50 997.00 983.00 716.50 480.50 371.00 143.50 168.50 233.00 613.00 864.81 d 1035.40 a 7686.71
1977 1251.50 867.50 895.00 583.00 568.50 176.50 148.50 81.93 c 0.00 z 0.00 z 0.00 z 0.00 z 4572.43
Period of Record Statistics
MEAN 1210.76 951.21 939.51 696.73 468.82 256.99 118.82 125.40 277.31 617.82 888.63 1092.20 7699.20
S.D. 183.71 102.61 70.52 65.13 85.91 77.33 43.68 49.69 81.64 59.33 91.85 99.91 434.36
SKEW 1.19 0.65 0.32 0.09 -0.53 -0.04 0.32 -0.12 0.30 -1.39 0.29 0.28 -0.41
MAX 1706.50 1238.00 1111.00 826.00 603.50 396.50 230.00 213.50 447.00 702.50 1123.97 1268.50 8546.47
MIN 943.43 790.50 776.00 583.00 256.50 123.50 31.50 25.00 134.00 413.50 699.50 929.50 6806.00
NO YRS 28 29 29 29 28 29 30 29 26 28 28 27 19